MANUAL - BAHA ENERJi Thytronic/NA016 Thytronic... · na016 - manual - 06 - 2011 manual na016 phase & residual overcurrent protection relay. 2 na016 - manual - 06 - 2011 table of contents

NA016 - Manual - 06 - 2011

MANUAL

NA016PHASE & RESIDUAL OVERCURRENT

PROTECTION RELAY

2 NA016 - Manual - 06 - 2011

TABLE OF CONTENTS

1 INTRODUCTION 4Scope and liability ...........................................................................................................................................................................................4Applicability ......................................................................................................................................................................................................4Conformity ........................................................................................................................................................................................................4Technical support ............................................................................................................................................................................................4Copyright ...........................................................................................................................................................................................................4Warranty ...........................................................................................................................................................................................................4Safety recommendations ...............................................................................................................................................................................4Insulation tests ................................................................................................................................................................................................4Product identification .....................................................................................................................................................................................5Environment .....................................................................................................................................................................................................5Graphical conventions ...................................................................................................................................................................................5Glossary/definitions ........................................................................................................................................................................................5

2 GENERAL 9Preface ............................................................................................................................................................................................................. 9Photo ................................................................................................................................................................................................................ 9Main features ................................................................................................................................................................................................ 10

3 TECHNICAL DATA 113.1 GENERAL ............................................................................................................................................................................................................11

Mechanical data ...........................................................................................................................................................................................11Insulation ........................................................................................................................................................................................................11EMC tests for interference immunity .........................................................................................................................................................11Voltage dip and interruption ........................................................................................................................................................................11EMC tests for interference immunity .........................................................................................................................................................11Emission ..........................................................................................................................................................................................................12Mechanical tests ...........................................................................................................................................................................................12Climatic tests ..................................................................................................................................................................................................12Safety ..............................................................................................................................................................................................................12Certifications ..................................................................................................................................................................................................12

3.2 INPUT CIRCUITS .............................................................................................................................................................................................. 13Auxiliary power supply U aux ...................................................................................................................................................................... 13Phase current input circuits ....................................................................................................................................................................... 13Residual current input circuit ..................................................................................................................................................................... 13Binary input circuits ..................................................................................................................................................................................... 13

3.3 OUTPUT CIRCUITS ........................................................................................................................................................................................... 13Output relays ................................................................................................................................................................................................. 13

3.4 MMI .....................................................................................................................................................................................................................143.5 COMMUNICATION INTERFACES ...................................................................................................................................................................14

Local port ........................................................................................................................................................................................................14Remote ports ..................................................................................................................................................................................................14

3.6 GENERAL SETTINGS ........................................................................................................................................................................................14 3.7 PROTECTIVE ELEMENTS .................................................................................................................................................................................14

Phase overcurrent - 50/51 ............................................................................................................................................................................14Residual overcurrent - 50N/51N .................................................................................................................................................................15

3.8 CONTROL AND MONITORING ........................................................................................................................................................................16Trip Circuit Supervision - 74TCS ..................................................................................................................................................................16Circuit Breaker monitoring ..........................................................................................................................................................................16Oscillography (DFR) ......................................................................................................................................................................................16

3.9 MEASURES ........................................................................................................................................................................................................16

4 FUNCTION CHARACTERISTICS 174.1 HARDWARE DESCRIPTION .............................................................................................................................................................................17

Power supply board ......................................................................................................................................................................................17CPU board ...................................................................................................................................................................................................... 18Input board .................................................................................................................................................................................................... 18MMI (keyboard, LED and display) ............................................................................................................................................................. 18

4.2 SOFTWARE DESCRIPTION ............................................................................................................................................................................. 19Kernel ............................................................................................................................................................................................................. 19Drivers ............................................................................................................................................................................................................ 19Application..................................................................................................................................................................................................... 19Base protocol (kernel) ................................................................................................................................................................................. 19Calibration (kernel) ....................................................................................................................................................................................... 19Communication (drivers) ............................................................................................................................................................................. 19MMI (drivers) ................................................................................................................................................................................................ 19Data Base (application/drivers) ................................................................................................................................................................. 20Self-test (application) .................................................................................................................................................................................. 20

3NA016 - Manual - 06 - 2011

Development tools ....................................................................................................................................................................................... 204.3 I/O DESCRIPTION ..............................................................................................................................................................................................21

Metering inputs .............................................................................................................................................................................................21Signal processing ..........................................................................................................................................................................................21Use of measured values ...............................................................................................................................................................................22Binary inputs ................................................................................................................................................................................................. 23Output relays ..................................................................................................................................................................................................24LED indicators ................................................................................................................................................................................................25Communication interfaces ...........................................................................................................................................................................26

4.4 PROTECTIVE ELEMENTS .................................................................................................................................................................................27Rated values ...................................................................................................................................................................................................27Phase overcurrent - 50/51 ........................................................................................................................................................................... 29Residual overcurrent - 50N/51N .................................................................................................................................................................31

4.5 CONTROL AND MONITORING ....................................................................................................................................................................... 33Data Logger ................................................................................................................................................................................................... 33Trip circuit supervision - 74TCS.................................................................................................................................................................. 33Circuit breaker supervision .........................................................................................................................................................................35 Test ..................................................................................................................................................................................................................36Oscillography ................................................................................................................................................................................................36

5 MEASURES, LOGIC STATES AND COUNTERS 37Measures ........................................................................................................................................................................................................37Circuit breaker ...............................................................................................................................................................................................37Counters ..........................................................................................................................................................................................................37Fault recording - SFR ....................................................................................................................................................................................37Event recording - Events ..............................................................................................................................................................................37Setting changes - Settings ......................................................................................................................................................................... 38Info .................................................................................................................................................................................................................. 38Protections trip ............................................................................................................................................................................................. 38Self-test .......................................................................................................................................................................................................... 38Oscillography - DFR ..................................................................................................................................................................................... 39

6 INSTALLATION 416.1 PACKAGING .......................................................................................................................................................................................................416.2 MOUNTING ........................................................................................................................................................................................................416.3 ELECTRICAL CONNECTIONS ......................................................................................................................................................................... 436.4 NOMINAL CURRENT In AND IEn SETTING ................................................................................................................................................. 486.5 NOMINAL CURRENT In SETTING FOR LPCT .............................................................................................................................................. 506.6 LED ALLOCATION ..............................................................................................................................................................................................516.7 FINAL OPERATIONS .........................................................................................................................................................................................51

7 PROGRAMMING AND SETTINGS 527.1 SW ThySetter.....................................................................................................................................................................................................52

ThySetter installation ....................................................................................................................................................................................52ThySetter use .................................................................................................................................................................................................52

7.2 MMI (Man Machine Interface) ..................................................................................................................................................................... 53Reading variables (READ) ........................................................................................................................................................................... 53Setting modifying (SET) ............................................................................................................................................................................... 53Test ...................................................................................................................................................................................................................54Communication ..............................................................................................................................................................................................55Reset ................................................................................................................................................................................................................55DEFAULT (Option) ..........................................................................................................................................................................................55Data/time setting (Time) ...............................................................................................................................................................................55

7.3 MENU TREE........................................................................................................................................................................................................567.4 MAINTENANCE ................................................................................................................................................................................................ 587.5 REPAIR ............................................................................................................................................................................................................... 587.6 PACKAGING ...................................................................................................................................................................................................... 58

8 APPENDIX 598.1 APPENDIX A1 - Inverse time IEC curves .................................................................................................................................................... 59

Mathematical formula ................................................................................................................................................................................. 59Phase overcurrent 50/51 - Standard inverse time curve (IEC 60255-3/BS142 type A) ..................................................................... 60Phase overcurrent 50/51 - Very inverse time curve (IEC 60255-3/BS142 type B) ..............................................................................61Phase overcurrent 50/51 - Extremely inverse time curve (IEC 60255-3/BS142 type C) .....................................................................62

8.2 APPENDIX B1 - I/O Diagram .......................................................................................................................................................................... 638.3 APPENDIX B2 - Interfaces ..............................................................................................................................................................................648.4 APPENDIX B3 - Connection diagrams ..........................................................................................................................................................658.5 APPENDIX C - Dimensions ............................................................................................................................................................................. 688.6 APPENDIX D - Revisions history ................................................................................................................................................................... 698.7 APPENDIX E - EC Declaration of conformity ............................................................................................................................................... 70

44 NA016 - Manual - 06 - 2011 INTRODUCTION

1 I N T R O D U C T I O N1 I N T R O D U C T I O NScope and liability

This document describes the functions, the technical data of NA016 devices; instructions for mount-ing, setting and commissioning are included.This manual has been checked out, however, deviations from the description cannot be completely ruled out, so that no liability in a legal sense for correctness and completeness of the information or from any damage that might result from its use is formally disclaimed.The information given in this document is reviewed regularly; any corrections and integration will be included in subsequent editions that are identifi ed by the date of revision.We appreciate any suggestions for improvement.We reserve the right to make technical improvements without notice.

ApplicabilityThis manual is valid for NA016 devices with fi rmware version 1.00 and following.Revision history is listed in appendix.

ConformityThe product complies with the CEE directives:

EMC Council Directives: 89/336/EECLow voltage Directives: 73/23/EEC

Technical supportContact: THYTRONIC Technical Service www.thytronic.it

CopyrightAll right reserved; It is forbidden to copy, modify or store material (document and sw) protected by copyright without Thytronic consent.

WarrantyThytronic warrants devices against defects in materials and workmanship under normal use for a period of ONE (1) YEAR from the date of retail purchase by the original end-user purchaser (“War-ranty Period”).

Safety recommendationsThe warming contained in this document are all-important for safety; special attention must be paid to the following symbols:

Installation and commissioning must be carried out by qualifi ed person; Thytronic assumes no re-sponsibility for damages caused from improper use that does not comply all warning and caution in this manual.In particular the following requirements must be met:

Remove power before opening it.Verify the voltage absence by means suitable instrumentation on relay connections; attention must be paid to all circuits supplied by external sources (binary input, CT, etc...) Care must be taken when handling metal parts (front panel, connectors).

Insulation testsAfter insulation tests, hazardous voltages (capacitor charges,...) may be arise; it is advisable to grad-ually reduce the test voltage avoiding to erase it abruptly.

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WARNING Death, severe personal injury or substantial property damage can result if proper precautionsare not taken.WARNING Death, severe personal injury or substantial property damage can result if proper precautionsare not taken.

CAUTION Minor personal injury or property damage can result if proper precautions are not takenCAUTION Minor personal injury or property damage can result if proper precautions are not taken

CAUTIONSettings must be established on the basis of a coordination study.Numerical values inside examples have educational purpose only; they don’t be used, in no way,for actual applications.

CAUTIONSettings must be established on the basis of a coordination study.Numerical values inside examples have educational purpose only; they don’t be used, in no way,for actual applications.

http://www.thytronic.it

5NA016 - Manual - 06 - 2011INTRODUCTION

Product identifi cationEach device is equipped with:

Identifi cation label installed on the front side with following informations: code number, phase and residual nominal currents, auxiliary voltage range and CE mark:

Test label with following informations: data, serial number and test operator signature.

EnvironmentThe NA016 device must be employed according to the environment conditions shown (see technical data).In case of different environment conditions, appropriate provisions must be provided (conditioning system, humidity control, etc...).If contaminants are present (dust, corrosive substances, etc...), filters must be provided.

Graphical conventionsThe CEI/IEC and ANSI symbols is employed where possible:e.g.: 51 = ANSI code concerning the overcurrent element.Following text formats are used:The ThySetter[1] menu: Phase overcurrent -50/51The parameter description (measures, thresholds, operate time,...) and related value: First threshold 50/51 defi nite time I>defThe display messages (MMI) are shown as: NA016Notes are highlighted with cursive letters inside colored bar

Note: Useful description note

Glossary/defi nitionsI En Relay residual nominal currentI Enp Residual CT primary nominal currentI n Relay phase nominal currentI np Phase CT primary nominal current50/51 Phase overcurrent ANSI code50N/51N Residual overcurrent ANSI code74CT CT supervision74TCS Trip Circuit Supervision

DFR Digital Fault Recorder (Oscillography)SER Sequential Event RecorderSFR Sequential Fault RecorderANSI American National Standard Institute

Note 1 The graphic interface and the operation of the ThySetter software are described in the relative chapters

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Standard CTs - Logger Standard CTs - No Logger

LPCT inputs - Logger LPCT inputs - No Logger

NA016#xx00

In 5A 1A

50-5150N-51N

5A

UAUX 24-230 Vac/dcIEn 5A 1A 5A

12345

NA016#xx10

In 5A 1A

50-5150N-51NCB OPENCB CLOSEDTCS

5A


12345

NA016#xx01

In Rated 50...500A/Extended 50...1250A

50-5150N-51N


12345

NA016#xx11




12345

Standard CTs - Logger Standard CTs - No Logger


NA016#xx00

In 5A 1A

50-5150N-51N

5A


12345

NA016#xx10

In 5A 1A


5A


12345

NA016#xx01


50-5150N-51N


12345

NA016#xx11




12345


IEEE Institute of Electrical and Electronics EngineersIEC International Electrotechnical CommissionCENELEC Comité Européen de Normalisation Electrotechnique

52 o CB (Circuit Breaker) Circuit Breaker52a Auxiliary contact in the breaker that is in the same position as the

breaker. It can be assigned to a binary input to locate the CB posi-tion (Breaker failure and/or CB diagnostic functions). (52a open = CB open)

52b Auxiliary contact in the breaker that is in the opposite position as the breaker (52b open = CB closed)

K1...K4 Output relaystTR1... tTR4 Output relay minimum pulse widthLatched Output relay with latched operation (manual reset) Output relay with

latched operation (automatic reset)

No-latched Output relay with no-latched operation (automatic reset)

CT or TA Current TransformerLPCT Low Power Current Transformer

P1 IEC nomenclature for primary polarity mark of CTs (as an alternative to a ANSI dot)

P2 IEC nomenclature for primary polarity mark of CTs (as an alternative to a ANSI no-dot)

S1 IEC nomenclature for secondary polarity mark of CTs (as an alternative to a ANSI dot)

S2 IEC nomenclature for secondary polarity mark of CTs (as an alternative to a ANSI no-dot)

Self test DiagnosticStart Leave an initial condition or reset condition (Pickup)Trip Operation (with operate time)

Operating time Duration of time interval between the instant when the character-istic quantity in reset condition is changed, under specifi ed condi-tions, and the instant when the relay operates

Dropout ratio The ratio of a reset value to an operate value in well-specifi ed con-ditions. The dropout ratio may be lower or greater than 1 according as an over or under element is considered

Reset time Duration of the time interval between the instant when the charac-teristic quantity in operate condition is changed, under specifi ed conditions, and the instant when the relay operates.

The stated reset time is related to a step variation of characteristic quantity in operate condition to the reset condition.

Overshoot time The critical impulse time for a relay which is in its reset condition, is the longest duration a specifi ed change in the input energizing quantity(ies) (characteristic quantity), which will cause the relay to change to operate condition, can be applied without the relay switches. The overshoot time is the difference from the operate time and the critical impulse time.

The declared values for the overshoot time are applicable with the lower setting value of the operation time.

MMI (Man Machine Interface) Operator front panel

ThySetter Setting and monitoring softwareLog fi le A text fi le that lists actions that have occurred (ThySetter).J2SE Java Platform Standard EditionSw SoftwareFw FirmwareUpgrade Firmware upgradeXML eXtensible Markup Language

7NA016 - Manual - 06 - 2011INTRODUCTION

Symbols.ai

Symbols

I>> Star t

I>> BF_OUT

IPh Block2

Logic internal signal (output); may be a logical state (e .g . I>> Star t) or a numerical valueIt is available for reading (ThySetter + communication interface)

Logic external signal (intput); may be a command coming from a binary input or a sw commandIt is available for reading (ThySetter + communication interface)

Internal signal (e.g. Breaker Failure output state concerning to the 2nd threshold of the 50 element) It is not available for reading (missing arrow)

AND and NAND logic gates

OR and NOR logic gates

Limit block (I>> threshold).

Computation block (Max phase current)

Threshold setting (e.g. pickup I >>).The value is available for reading and is adjustable by means ThySetter + MMI.

Switch

ON delay timer with reset (tON delay)

ON delay timer without reset (tON delay)

OFF delay timer (dropout) without reset (tDROP delay)

Curve type (definite/inverse time)0T

I L3

M a x [ I L1 ,I L2 ,I L3 ]I L2

I L1

tON tON tON tON

t

RESET

INPUT

OUTPUT

tDROPtON tON

t

INPUT

OUTPUT

tON tON tON

t

INPUT

OUTPUT

0TtON

& &

≥1 ≥1

EXOR logic gate

tDROP

=1

I >>

II ≥ I >>

tON

RESET

0T

0 T


Symbols1 .ai

tON tON tON

t

RESET

INPUT

OUTPUT

tDROP

tDROP

tDROP tDROP

Minimum pulse width operation for output relays (tTR) tTR

t

tTR

INPUT

OUTPUT

tTR

0 T

tTR

t

tTR

INPUT

OUTPUT

Latched operating mode for output relays and LEDs

Pulse operating mode for output relays

t

INPUT

OUTPUT

Latched

tTR

T0RESET

OFF delay timer (dropout) with reset (tDROP delay)

9NA016 - Manual - 06 - 2011GENERAL

2 G E N E R A L2 G E N E R A LPreface

The relay type NA016 can be used in radial networks as feeder or power transformer protection. In solidly grounded systems the residual overcurrent protection can be used on feeders of any length, while in ungrounded or Petersen coil and/or resistance grounded systems, the residual overcurrent protection can be used on feeders of small length in order to avoid unwanted trippings due to the capacitive current contribution of the feeder on external ground fault.The NA016 protection relay may be shipped with traditional CTs or low power (LPCT) current inputs.

Following input circuits are available:Three phase current and one residual current inputs with nominal currents independently select-able at 1 A or 5 A using DIP-switch (CT inputs) or 50...1250 primary amperes (LPCT inputs).Three binary inputs.

In addition to the main protection element, the Trip Circuit Supervision (TCS) is also provided.Setting, programming and reading operations must be effected by means of Personal Computer with ThySetter software or by means of remote communication interface (RS485 bus); all operations must be performed through MMI.The NA016 hardware case is suitable for fl ash and rack mountingOther options are:

Auxiliary power supply operating range.Communication protocols (Modbus or IEC60870-5-103).

Photo

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1010 NA016 - Manual - 06 - 2011 GENERAL

Main featuresMetallic case. Backlight LCD 2x16 Display.Eight LEDs that may be joined with matrix criteria to many and various functions.RESET key to clear LED indications and latched output relays.Free settable three binary inputs.Independently settable for start, trip, self-test and control four output relay (K1...K4) Each output relay may be set with normally energized or normally de-energized operating mode and manual or automatic reset (latched/no-latched).Rear RS485 port, with ModBus protocol.RS232 front serial port (local communication for Thysetter).Real time clock with super capacitor backup.

The most signifi cant constructive features are:Galvanically insulated input and output circuits (communication and binary circuits included).Fast sampling rate for inputs.Optimum fi ltering of input signals through combined use of analog and digital fi lters.Traditional electromechanical-type fi nal output contacts with continuous monitoring of control coil continuity.Auxiliary supply comprising a switching-type voltage stabilizing circuit having a very wide working range and a very small power dissipationNominal frequency: 50 or 60 Hz.

The most signifi cant operating features are:Programming of operating modes and parameters by means of the front keys and alphanumeric display, with a programming procedure based on carrying out guided selections and on explicit and immediate signalling of the operations being performed, so that such procedure can be carried out without coding tables or mnemonic informations.The feature modifi cation operations do not interrupt the normal functions of the relay.Impossibility of programming unacceptable parameter values, thanks to the automatic limitation of top and bottom scale values for the relative setting ranges.Currents are sampled 64 times per period and measured in the effective value (RMS) of the funda-mental component using the DFT (Discrete Fourier Transform) algorithm and digital fi lters.The fault recorder (SFR) runs continuously capturing in circular mode the last twenty events upon trigger of binary input/output and/or element pickup (start-trip).The event recorder (SER) runs continuously capturing in circular mode the last three hundred events upon trigger of binary input/output.Recording of the last setting changes (Logger).Digital fault recorder (DFR) in COMTRADE format (oscillography).

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11NA016 - Manual - 06 - 2011TECHNICAL DATA

3 T E C H N I C A L D A T A3 T E C H N I C A L D A T A

3.1 GENERAL

Mechanical dataMounting Flush, RackExternal dimensions 177 x 107 x 105 (high x width x depth)Terminals screw connectionMass 1.2 kg

Reference standards EN 60529, EN 60529/A1Degrees of protection provided by enclosures (IP Code)Front IP52Terminals IP20

Insulation

Reference standards EN 60255-5 IEC 60255-5

High voltage test (50 Hz 60 s) Auxiliary power supply 2 kVInput circuits 2 kVOutput circuits 2 kVOutput circuits (between open contacts) 1 kVCommunication interfaces 500 V

Impulse voltage withstand test (1.2/50 μs):Auxiliary power supply 5 kVInput circuits 5 kVOutput circuits 5 kVOutput circuits (between open contacts) 2.5 kV

Insulation resistance >100 MΩ

EMC tests for interference immunityReference standards

Product standard for measuring relays EN 50263Generic standards immunity for industrial environments EN 61000-6-2Electromagnetic compatibility requirements for measuring relays and protection equipment

EN 60255-26

Apparati di automazione e controllo per centrali e stazioni elettricheCompatibilità elettromagnetica - Immunità ENEL REMC 02

• Normativa di compatibilità elettromeccanica per apparati e sistemi ENEL REMC 01

Voltage dip and interruption

Reference standards EN 61000-4-29 IEC 60255-22-11Voltage dips, short interruptions and voltage variations on dc input power port immunity tests

Auxiliary power supply in dc energizing quantity Interruption (UT=40%) 100 msInterruption (UT=0%) 50 ms

• Voltage variations (UT=80...120%) 10 s

EMC tests for interference immunityReference standards EN 60255-22-1 IEC 60255-22-1 EN 61000-4-12 EN 61000-4-12Damped oscillatory wave

0.1 MHz and 1 MHz common mode 2.5 kV0.1 MHz and 1 MHz differential mode 1.0 kVRing wave common mode 2.0 kVRing wave differential mode 1.0 kV

Reference standards EN 60255-22-2 IEC 60255-22-2 EN 61000-4-2 IEC 61000-4-2Electrostatic discharge

Contact discharge 6 kVAir discharge 8 kV

Reference standards EN 60255-22-3 IEC 60255-22-3 EN 61000-4-3 IEC 61000-4-3Radiated radio-frequency fi elds

80...1000 MHz AM 80% 10 V/m 900 MHz Pulse modulated 10 V/m

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1212 NA016 - Manual - 06 - 2011 TECHNICAL DATA

Reference standards EN 60255-22-4 IEC 60255-22-4 EN 61000-4-4 IEC 61000-4-4 Fast transient burst (5/50 ns)

Auxiliary power supply 2 kVInput circuits 4 kV

Reference standards EN 60255-22-5 IEC 60255-22-5 EN 61000-4-5 IEC 61000-4-5High energy pulse

Uaux (line-to-ground 10 ohm, 9 μF) 2 kVUaux (line-to-line 0 ohm, 18 μF) 1 kVI/O ports (line-to-ground 40 ohm, 0.5 μF) 2 kVI/O ports (line-to-line 40 ohm, 0.5 μF) 1 kV

Reference standards EN 60255-22-6 IEC 60255-22-6 EN 61000-4-6 IEC 61000-4-6Conducted radio-frequency fi elds

0.15...80 MHz AM 80% 1kHz 10 V

Reference standards EN 60255-22-7 IEC 60255-22-7 EN 61000-4-16 IEC 61000-4-16Power frequency immunity tests

Dc voltage 30 V50 Hz continuously 30 V50 Hz 1 s 300 V0.015...150 kHz 30 V

Reference standards EN 61000-4-8 IEC 61000-4-8Magnetic fi eld 50 Hz

50 Hz continuously 100 A/m50 Hz 1 s 1 kA/m

Reference standards EN 61000-4-10 IEC 61000-4-10Damped oscillatory magnetic fi eld

Damped oscillatory wave 0.1 MHz 30 A/m• Damped oscillatory wave 1 MHz 30 A/m

Emission

Reference standards EN 60255-25 IEC 60255-25 EN 61000-6-4 IEC 61000-6-4 EN 55011 CISPR 11Electromagnetic emission tests

Conducted emission auxiliary power supply 0.15...0.5 MHz 79 dB μVConducted emission auxiliary power supply 0.5...30 MHz 73 dB μVRadiated emission 30...230 MHz 40 dB μV/m

• Radiated emission 230...1000 MHz 47 dB μV/m

Mechanical testsReference standards EN 60255-21-1 EN 60255-21-2 RMEC01Vibration, shock, bump and seismic tests on measuring relays and protection equipment

EN 60255-21-1 Vibration tests (sinusoidal) Class 1• EN 60255-21-2 Shock and bump test Class 1

Climatic tests

Reference standards IEC 60068-x ENEL R CLI 01 CEI 50Operating temperature -25...+70 °CStorage temperature -40...+85 °CPermissible relative humidity 10...95 %Atmospheric pressure 70...110 kPa

Safety

Reference standards EN 61010-1Safety requirements for electrical equipment for measurement, control and laboratory usePollution degree 3Reference voltage 250 VOvervoltage category III

Certifi cationsReference standardsProduct standard for measuring relays EN 50263 CE Conformity

EMC Directive 89/336/EECLow Voltage Directive 73/23/EECType tests IEC 60255-6

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3.2 INPUT CIRCUITS

Auxiliary power supply U aux VoltageNominal value (range)[1] 24...230 V~/-Operative range 19...265 V~/19...300 V-

Inrush current (max)24 V- 3 A, 1 ms48 V- 5 A, 1 ms110 V- 10 A, 1 ms230 V~ 40 A, 1 ms

Frequency (for alternate voltage supply) 45...66 HzMax distortion factor ( for alternating voltage supply) 15%Max alternating component (for dc voltage supply):

Full wave rectifi ed sine wave 100 %Sine wave 80 %

Power consumption: Maximum (energized relays, three LEDs, backlight ON) 4.5 W (UAUX = 24 V-)

• Maximum (energized relays, three LEDs, backlight ON) 9 VA (UAUX = 230 V~)

Phase current input circuitsStandard CTs:

Connections M4 terminalsRelay nominal phase current In 1 A or 5 A selectable by DIP-switchPermanent overload 25 AThermal overload (1 s) 500 ADynamic overload (half cycle) 1250 ARated consumption (for any phase) ≤ 0.002 VA with In=1 A ≤ 0.04 VA with In=5 A

LPCT - Low Power Current Transformers:Connections RJ45 plugRelay nominal phase current In 100 AExtended primary current 50 A...1250 A selectable by DIP-switchMax primary current 12.5 kANominal secondary voltage (with Inp = 100 A) 22.5 mV

Residual current input circuitRelay nominal residual current IEn 1 A or 5 A selectable by DIP-switch Permanent overload 25 AThermal overload (1 s) 500 ADynamic overload (half cycle) 1250 ARated consumption ≤ 0.006 VA with IEn=1 A ≤ 0.12 VA with IEn=5 A

Binary input circuitsQuantity 2Type optocouplerOperative range 24...265 V~/-Min activation voltage UDIGmin 18 VMax consumption, energized 3 mA

3.3 OUTPUT CIRCUITS

Output relaysQuantity 4Type of contacts changeover (SPDT, type C) Nominal current 8 ANominal voltage/max switching voltage 250 V~/400 V~Breaking capacity:

Direct current (L/R = 40 ms) 50 W (K1, K2, K4 trip)Direct current (L/R = 40 ms) 30 W (K3 signalling)Alternating current (λ = 0,4) 1250 VA

Make 1000 W/VAShort duration current (0,5 s) 30 AMinimum switching load 300 mW (5 V/ 5 mA)Life:

Mechanical 106 operationsElectrical 105 operationsMinimum pulse width (K1tTR...K4tTR) 0.01...0.50 s (step 0.01 s)

Note 1 The different versions must be select on order

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3.4 MMI

Display 16x2 LCD backlight module

LEDs Quantity 8

ON/fail (green) 1Start (yellow) 1Trip (red) 1Trip I>, I>>, I>>> (red) 1Trip IE>, IE>> (red) 152a - Circuit Breaker position (red) 152b - Circuit Breaker position (red) 1TCS - Trip Circuit Supervision (red) 1

Keyboard 8 keys[1]

3.5 COMMUNICATION INTERFACES

Local portConnection RJ10Baud rate 19200 bpsParity NoneProtocol Modbus RTU®

Remote ports

RS485Connection screw terminalsBaud rate 1200...57600 bpsProtocol[2] ModBus®RTU

IEC 60870-5-103

3.6 GENERAL SETTINGS

Relay nominal frequency fn 50, 60 HzPhase CT primary nominal current Inp [3] 1 A...1250 A 1...99 A (step 1 A) 100...1250 A (step 5 A)Residual CT primary nominal current IEnp [4] 1 A...1000 A 1...99 A (step 1 A) 100...1000 A (step 5 A)

3.7 PROTECTIVE ELEMENTS

Phase overcurrent - 50/51I> Element

I> Curve type (I>Curve) Inverse[5] IEC/BS A, B, C

50/51 First threshold inverse time (I>inv) 0.100...2.50 In 0.100...0.999 In (step 0.001 In) 1.00...2.50 In (step 0.01 In)Operating time (t>inv) 0.02...60.0 s 0.02...9.99 s (step 0.01 s) 10.0...60.0 s (step 0.1 s)

Nota 1 The “ O” and “ I” keys are not actives

Note 2 The different versions must be select on order

Note 3 The nominal current settings doesn’t concern the 50/51 protection elements; they must agree with nominal primary current for traditional CT inputs or dip-switch 50...1250 A for LPCT inputs for a right reading of the phase current primary values (Reading Direct).

Note 4 The nominal current settings doesn’t concern the 50N/51N protection elements; they must agree with nominal primary current of the CT inputs for a right reading of the residual current primary values (Reading Direct).

Note 5 Standard Inverse Time (IEC 255-3/BS142 type A or SIT): t = 0.14 · t>inv / [(I/I>inv)0.02 - 1] Very Inverse Time (IEC 255-3/BS142 type B or VIT): t = 13.5 · t>inv / [(I/I>inv) - 1] Extremely Inverse Time (IEC 255-3/BS142 type C or EIT): t = 80 · t>inv / [(I/I>inv)2 - 1] t : operate time I> inv: pickup value t>inv: operate time setting Asymptotic reference value: 1.1 I>inv Minimum operate time: 0.1 s Equation is valid for 1.1 ≤ I/I>inv ≤ 20: - with traditional CTs and setting I>inv ≥ 2.0 In, the measuring upper limit is 40 In - with LPCT sensors and setting I>inv = 1.0 In and In = 625 A the measuring upper limit is 12500 A

••••••••

•••


I>> Element50/51 Second threshold defi nite time (I>>def)[1] 0.100...20.0 In 0.100...0.999 In (step 0.001 In) 1.00...9.99 In (step 0.01 In) 10.0...20.0 In (step 0.1 In)I>>def Operating time (t>>def) 0.03...10.00 s (step 0.01 s)I>> Reset time delay (t>>RES) 0.00...1.00 s (step 0.01 s)

I>>> Element50/51 Third threshold defi nite time (I>>>def) 0.100...20.0 In 0.100...0.999 In (step 0.001 In) 1.00...9.99 In (step 0.01 In) 10.0...20.0 In (step 0.1 In)I>>>def Operating time (t>>>def) 0.03...10.00 s (step 0.01 s)I>>> Reset time delay (t>>>RES) 0.00...1.00 s (step 0.01 s)

Pickup time ≤ 0.03 sDropout ratio 0.95...0.98Dropout time ≤ 0.04 sOvershoot time 0.03 sPickup accuracy ± 4% ± 1% InOperate time accuracy 5% or ± 10 ms

Residual overcurrent - 50N/51NIE> Element

50N/51N First threshold defi nite time (IE>def) 0.005...5.00 IEn 0.005...0.999 IEn (step 0.001 IEn) 1.00...5.00 IEn (step 0.01 IEn)IE>def Operating time (tE>def) 0.03...180 s 0.03...9.99 s (step 0.01 s) 10.0...99.9 s (step 0.1 s) 100...180 s (step 1 s)IE> Reset time delay (tE>RES) 0.00...1.00 s (step 0.01 s)

IE>> Element50N/51N Second threshold defi nite time (IE>>def) 0.005...5.00 IEn 0.005...0.999 IEn (step 0.001 IEn) 1.00...5.00 IEn (step 0.01 IEn)IE>>def Operating time (tE>>def) 0.03...10.00 s (step 0.01 s)IE>> Reset time delay (tE>>RES) 0.00...1.00 s (step 0.01 s)

Pickup time ≤ 0.03 sDropout ratio 0.95...0.98Dropout time ≤ 0.04 sOvershoot time 0.03 sPickup accuracy ± 4% ± 1% IEnOperate time accuracy 5% or ± 10 ms

Note 1 For all defi nite time elements the upper limit for measuring is 40 In for traditional CT input versions or 12.5 kA (primary current) for LPCT input versions:

- 40 In for traditional CT input versions - 12500 A (primary current) for LPCT input versions, so the maximum threshold adjustment depends on the In setting (Dip switch); eg: with In = 1000 A the max setting for I>>def and I>>>def thresholds is 12500/1000 = 12.5 In


3.8 CONTROL AND MONITORING

Trip Circuit Supervision - 74TCSEnable (74TCS) On / OffOperating time 40 sReset time delay 6 s

Circuit Breaker monitoringCircuit breaker diagnostic

Diagnostic (CB Diagnostic) On / Off

Oscillography (DFR)Format COMTRADENumber of records 2Recording mode circularSampling rate 16 samples / power cycle

Set trigger:Pre-trigger time 0...63 T[1] [2]

Trigger inputs IN1, IN2, IN3Triggeroutputs K1...K4Manual Trigger ThySetterGeneral Trigger general from start / trips Start, TripTrigger from start / trips Start I>, I>>, ...Trip I>...

Set analog channels:Analog 1...Analog 4

Instantaneous currents value iL1, iL2, iL3, iERMS value of the fundamental component for phase currents IL1, IL2, IL3RMS value of the fundamental component for residual current IE

Set digital channels:Inputs IN1, IN2, IN3Outputs K1...K4General from start / trips Start, Trip

3.9 MEASURES

RMS value of the fundamental component for phase currents (IL1, IL2, IL3)RMS value of the fundamental component for residual current (IE)

Note 1 - T = number of power cyclesExample, with setting T=4 the pre-trigger is 80 ms with f = 50 Hz

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17NA016 - Manual - 06 - 2011FUNCTION CHARACTERISTICS

4 F U N C T I O N C H A R A C T E R I S T I C S4 F U N C T I O N C H A R A C T E R I S T I C S

4.1 HARDWARE DESCRIPTION

The following fi gure illustrates the basic structure of the relay.

Printed boards hold the circuit components arranged according to a modular allocation of the main functions.

Power supply boardAll the components necessary for conversion and stabilization functions are present.Two versions are envisaged suited to the input range 24...230 V. The circuit provides stabilized voltages of +5 V and -5 V, required for the analogue measurement and +3.3 V for supplying the digital circuits. The circuit board additionally comprises:INPUT CIRCUITS:

Three binary input circuits, The logical input circuits and the block circuits include photo-couplers which provide for galvanic separation. OUTPUT CIRCUITS:

Four output relays (k1...K4).

•

•

hw.ai

RTC

CPU BOARD

POWER SUPPLY BOARD

INPUT MODULE

CTs

DSP

1A/5A

≈≈≈≈

EEprom

RS48

5

RELAYS

K1...K4 Output contacts

RS232

MMILCD

LEDs

BINARY INPUTS

IN1

InputIN2

IN3

POWER SUPPLY

+5 V

+10

V

0 V

+24

V-1

0 V

POW

ER F

AIL

RESE

T

Uaux

≈≈≈ L

PCTs

CUR

REN

T IN

PUTSIL1

IL2

IL3

L1

L2

SettingLPCT

800 A400 A

200 A100 A

50 A

L3

In=50...1250A

hw.ai

RTC

CPU BOARD

POWER SUPPLY BOARD

INPUT MODULE

CTs

DSP

1A/5A

≈≈≈≈

EEprom

RS48

5

RELAYS

K1...K4 Output contacts

RS232

MMILCD

LEDs

BINARY INPUTS

IN1

InputIN2

IN3

POWER SUPPLY

+5 V

+10

V

0 V

+24

V-1

0 V

POW

ER F

AIL

RESE

T

Uaux

≈≈≈ L

PCTs

CUR

REN

T IN

PUTSIL1

IL2

IL3

L1

L2

SettingLPCT

800 A400 A

200 A100 A

50 A

L3

In=50...1250A

1818 NA016 - Manual - 06 - 2011 FUNCTION CHARACTERISTICS

CPU boardThis circuit board contains all the circuits necessary for performing the analogue and digital pro-cessing of the signals.

Analog processingThe following are envisaged:

Anti aliasing fi lter circuits, .Amplifi er circuits for conditioning the input signals, Reference voltage adjustment circuits for the measurement A/D converter.

The relays usea a DSP processor operating at 40 MHzThe input currents are sampled at a frequency of 64 samples per period by means of a dual conversion system which allows the attainment of infor-mation pertaining to polarity and amplitude with high resolution. The measurement criterion allows precise measurement of even those signals having a unidirectional component, such as transient currents with overlapping exponential, which typically appear during faults. The circuit board also houses the output relays with the corresponding command and control cir-cuits, communication circuits, buttons, LCD display, LEDs and the key switch.

CPUA 32 bit DSP is provided. The following are envisaged:

Real Time Clock circuits with oscillator and super capacitor,RS232 communication port,RS485 communication port,

Memories:Ram: high speed static memoryFlash memory,EEprom memory: used for calibration data storage,

Input boardThree CTs committed for phase currents acquisition,One CT committed for residual current acquisition.

The input circuits are suitable for 1 A or 5 A external CTs.[1]

MMI (keyboard, LED and display)The MMI module (Man Machine Interface) includes:

An eight keys 8 keyboard,a backlight LCD display,Eight signalling LEDs,RS232 communication port.

Note 1 The phase and residual nominal currents must be adjusted by means dip-switch.

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4.2 SOFTWARE DESCRIPTION

The program which handles operation of the Pro-N relays is made up of three fundamental elements shown in the following block diagram.

KernelThe kernel represents the nucleus of the system: it includes the processing functions closest to the electronic circuits; particularly the algorithms providing for the generation of the synchronisms (tim-ers) for sampling the analogue signals and numerical processing. The software is structured with interrupts operating with various priority levels in a non “pre-emp-tive” task system. By means of Discrete Fourier Transform calculation, based on 32 samples/period, information is deduced in relation to the amplitude and phase of all the current measurements; these are constantly updated and at the disposal of all the protection and control application algorithms. In addition, the kernel manages a service communication protocol known as Basic Protocol (BP).

DriversThe driver library contains all the specialised modules for the command and control functions which make up the connection ring between the kernel and the application. Examples of drivers include the Modbus communication and LCD display modules.

ApplicationThe application contains all the elements which carry out the protection and control functions. The main modules are:

- diagnostic function,- input management (logical inputs and block signal), - protective functions, - event recording, - output management (output relays, LEDs and block signals).

Each element (Kernel, Drivers and Application) may, in turn, be split into modules:

Base protocol (kernel)The module known as the Basic Protocol (BP) manages the service communication between the kernel and the other modules through the communication buses:

- direct for internal functional call,- SPI over synchronous serial, - SCI over asynchronous serial. The activities which may be performed by means of BP include:

- measurement confi guration ,- measurement reading,- measurement enabling.

Calibration (kernel)Calibration is performed using the base protocol functions for coordinating the calibration and test-ing stages with the automatic testing equipement (ATE).

Communication (drivers)The protective device implements the MODBUS RTU protocol for communicating via the RS232 inter-face with the ThySetter setting software and via the RS485 interface with the fi eld bus. All major codes according to the Modbus standard are envisaged; for a complete description and map of the addresses, please refer to the appendix mentioned further in this manual.

MMI (drivers)This handles the menus, available both on the panel and by means of Modbus messages, which may be run from commands using the keyboard, LEDs and LCD display. MMI information is stored in EEPROM and may be loaded remotely by means of the basic protocol functions.

APPLICATION

DRIVERS

timers

KERNELsampling

APPLICATION

DRIVERS

timers

KERNELsampling


Data Base (application/drivers)Using modular criteria, the database is structured in three sections:

- RAM containing the volatile data, - REE and PAR containing the data recorded in non-volatile memory. Duplication of the data into two memory banks is envisaged with a continuous control system based on the cross checking of the consistency of the stored data. Modification of the calibration pa-rameters is split into two stages; in particular, data undergoing modification is placed in temporary memory and subsequently confirmed permanently (Store command) or discarded (Clear command). Instead, the area identified as REE is set aside for recording data which does not require the Store command for storage, or date written directly by the application (e.g.: counters,...)

Self-test (application)This function cyclically monitors the operation of the main hardware and software functions without affecting the process cycle with any signifi cant delays. In particular, the functions monitored are the following,

- the reference voltage levels,- output relay coil continuity, - the program fl ow control by monitoring the execution times and stack area occupancy,- checking the pilot wires (accelerated logic system), - the consistency of the data in the REE and PAR blocks, duplicated in the EEPROM.

Development toolsFor the development of the project, a CASE instrument has been developed, responsible for the opti-mized production of software code for the management of collaboration, the database and the MMI data and the Xml files used for communication. The automatic code generation criteria ensures the quality of the result in terms of the reusability, verifiability and maintainability of the software life cycle.


4.3 I/O DESCRIPTION

Metering inputsThe following input are provided:

Three phase current inputs fo traditional CTs or LPCTs (Low Power Current Transformers).One residual current input.The nominal currents are independently adjustable at 1 A or 5 A through DIP-switches (CTs inputs).

The input circuits are appropriately dimensioned in order to withstand the currents which arise when a fault occurs, both in transient and steady state condition.

Signal processingVarious processing levels are involved:

Acquisition (base level).Direct measures of physical channels (fi rst level).Calculated measures (second level).Derived (third level).

The measures concerning a level are based on data worked out in the previous level.For each level the required resources concerning the priority for tasks (conditioning circuits, DSP) are on hand.

ACQUISITION (base level)The input signals are sampled 24 times per power cycle

- iL1...iL3 phase currents instantaneous value- iE residual current instantaneous value

From the sampled quantities, several measures are computed for protection, monitoring and meter-ing purposes.

Samples are processed by means DFT (Discrete Fourier Transform) algorithm and the phase and amplitude of fundamental are computed:

Phase currents IL1, IL2, IL3

Residual current IE

•••

••••

•

•

sensor i .a i

NA016

3 phase CT current inputs

3 phase LPCT current inputs

one residual current input

sensor i .a i

NA016

3 phase CT current inputs

3 phase LPCT current inputs

one residual current input

acquis i t ion.ai

ACQUISITION

INSTANTANEOUS VALUES≈

acquis i t ion.ai

ACQUISITION

INSTANTANEOUS VALUES≈

IL1 .a i

(In)

ACQUISITION

iL1, iL2, iL3DFT

TA

≈ IL1, IL2, IL3

IL1 .a i

(In)

ACQUISITION

iL1, iL2, iL3DFT

TA

≈ IL1, IL2, IL3

IE .a i

(IEn)

ACQUISITION

iEDFT

TA

≈ IE

IE .a i

(IEn)

ACQUISITION

iEDFT

TA

≈ IE


Use of measured values

i L1, i

L2, i

L3

I L1, I

L2, I

L3

i E I E Bin

ary

inpu

t IN

1

inar

y in

put I

N2,

inar

y in

put I

N3

Star

t (ST

ART)

Rel

ay K

1...K

4Tr

ip (T

RIP)

Rel

ay K

1...K

4Sr

art (

STAR

T) L

EDTr

ip (T

RIP)

LED

Trip

(50/

51) L

EDTr

ip (5

0N/5

1N) L

EDTr

ip (C

B OP

EN) L

EDTr

ip (C

B CL

OSED

) LED

(TCS

) LED

PROTECTIONPhase overcurrent (50/51) g g g g g gResidual overcurrent (50N/51N) g g g g g g

CONTROL & MONITORINGCircuit Breaker Position (52b) g g gCircuit Breaker Position (52a) g g gTrip Circuit Supervision (TCS) g gDiagnosticProtection statesInput statesOutput states

MEASURESPhase current gResidual current g

EVENT RECORDINGEvent 0 g g g g gEvent 1 g g g g gEvent ... g g g g gEvent 99 g g g g g

FAULT RECORDINGFault 0 g g g g gFault 1 g g g g gFault ... g g g g gFault 19 g g g g g

OSCILLOGRAPHYRecord 1 g g g g g g g g gRecord 2 g g g g g g g g g


Binary inputsThree binary inputs are available.The dry inputs must be powered with an external voltage, (usually the auxiliary power supply).The connections are shown in the schematic diagrams.

Every input is customized for a defi ned function.

FUNCTIONBinary input

IN1 IN2 IN3

52a (auxiliary CB contact) g

52b (auxiliary CB contact) g

TCS (Trip Circuit Supervision) g

TCSTrip Circuit Supervision.Supervision with one binary input may be performed.The exhaustive treatment of the TCS function is described in the concerning paragraph.

52a and 52bThe CB position can be acquired by means of binary inputs connected to the auxiliary contacts: the information is used to acquire the CB position (open-closed-fault).

TRIP

R

+UAUX

-UAUX

52a 52b52

NA016

Binary input IN3 Towards 74TCS logic

Trip Circuit Supervision - 74TCS

TRIP

R

+UAUX

-UAUX

52a 52b52

NA016

Binary input IN3 Towards 74TCS logic


CB positionCB diagnostic

52a52

52b

+UAUX

-UAUX

IN2

IN1

Binary input allocation for CB state acquisition

CB positionCB diagnostic

52a52

52b

+UAUX

-UAUX

IN2

IN1

Binary input allocation for CB state acquisition


Output relaysFour output relays are available (K1...K4) with two changeover contacts (SPDT, type C):[1]

K1, K2 and K4 are trip relays.K3, is a signalling relay.[2]

Each output relay may be programmed with following operating mode:Operation MODE (No latched, Latched).Logic (Energized/De-energized).

To each output relay a programmable timer is matched (Minimum pulse width parameter).All parameters are available inside the Set \ Relays menu.

Any change to the settings can be affected at any time, also with the relay on duty, separately for each relay.Notes:

When de-energized operating mode is set, the relay remains in rest condition if no trip command is in progress.When energized operating mode is set, the relay remains in operating condition if no trip command is in progress and the auxiliary supply is powered on.When no-latched operating mode is set (Kx Mode No-latched), the output relay reset at the end of the trip condition. To each output relay a programmable timer is matched (minimum pulse width operation).When latched operating mode is set Kx Mode Latched, the output relay doesn’t reset at the end of the trip condition; it stays ON until a reset command is issued (RESET key, ThySetter or com-munication command).It is advisable to make sure that the output contact technical data are suitable for load (Nominal current, breaking capacity, make current, switching voltage,...).

Matching every output relay to any protective element is freely programmable inside the Setpoints submenus according a tripping matrix structure.[3][4]

FUNCTIONRELAY

K1 K2 K3 K4

Self-test relay g g g g

I> Start relays (Start I>) g g g g

I> Trip relays (Trip I>) g g g g

I>> Start relays (Start I>>) g g g g

I>> Trip relays (Trip I>>) g g g g

I>>> Start relays (Start I>>>) g g g g

I>>> Trip relays (Trip I>>>) g g g g

IE> Start relays (Start IE>) g g g g

IE> Trip relays (Trip IE>) g g g g

IE>> Start relays (Start IE>>) g g g g

IE>> Trip relays (Trip IE>>) g g g g

TCS Trip relays (Trip TCS) g g g g

Self test CB g g g g

Note 1 Schematic diagram are shown inside APPENDIX B1.

Note 2 Reduced breaking capacity for the K3 relays compared to that of K1, K2 and K4 relays.

Note 3 Matching of the output relay to the protective and control functions can be defi ned so that any collision from other function is avoided. All output relay are unassigned in the default setting.

Note 4 Self test relay: it is advisable to plan the following settings: - Energized operating mode, - No-latched , in order that it stays ON for normal conditions and the other way round it goes OFF if any fault is detected and/or the auxiliary supply turns OFF.

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••

•

•

•

•

•

Input

No-latched operation

Latched operation

Output relay operation Relay-operat ion-t imers.ai

t

Minimum pulse widthtTR

Input

No-latched operation

Latched operation

Output relay operation Relay-operat ion-t imers.ai

t

Minimum pulse widthtTR


LED indicatorsEight LEDs are available.

One green LED “ON”: if turned on it means that the device is properly working, if fl ashing the inter-nal self-test function has detected an anomaly.One yellow LED “START” tagged for START of one or more protective elements. (I>, I>>, I>>>, IE>, IE>>)One red LED “TRIP” tagged for TRIP of one or more protective elements (I>, I>>, I>>>, IE>, IE>>).One red LED 1, latched, tagged for TRIP of one or more protective elements I>, I>>, I>>>One red LED 2, latched, tagged for TRIP of one or more protective elements IE>, IE>>One red LED 3, no latched, tagged for binary input state visualization 52a (CB position)[1]

One red LED 4, no latched, tagged for binary input state visualization 52b (CB position)[1]

One red LED 5, no latched, tagged for binary input state visualization TCS.[1]

FUNCTIONSLED

START TRIP 1 2 3 4 5

Start I> g

Trip I> g g

Start I>> g

Trip I>> g g

Start I>>> g

Trip I>>> g g

Start IE> g

Trip IE> g g

Start IE>> g

Trip IE>> g g g

Trip TCS g g

CB OPEN g

CB CLOSED g

Note 1 The LEDs 3, 4 (CB position) and 5 (TCS) are enabled only when the logger is enabled

•

•

••••••

Start

TCS (TCS trip)CB CLOSED (52b)CB OPEN (52a)

50-51 (I>, I>>, I>>> elements)50N-51N (IE>, IE>> elements)

Trip

Key not active

Key not active

Start

TCS (TCS trip)CB CLOSED (52b)CB OPEN (52a)

50-51 (I>, I>>, I>>> elements)50N-51N (IE>, IE>> elements)

Trip

Key not active

Key not active


Communication interfacesSeveral communication ports are provided:

RS232 port on the front side for local communication (ThySetter).RS485 port on the rear side for bus communication.

RS232A simple DIN to RJ adapter can be used; the L10041 cable can be supplied.The RS232 port has high priority compared with the RS485 port.

If RS232 port is not available on Personal Computer, an USB-RS232 converter must be employed.[1]

The serial port is the simplest access for setting by means the ThySetter software.RS485

Several protocol are implemented:ModBus RTU. Modbus is a serial communications protocol. It is a de facto standard communica-tions protocol in industry, and is now the most commonly available means of connecting industrial electronic devices also inside electric utilities and substation. IEC 60870-5. The IEC 60870-5 suite of protocol is used for communications from master station to substation, as well within the substation; the IEC 60870-5-103 (Protection equipment) is available together the Modbus protocol on some version of Pro-n devices (code NA016#xCxx).

Note 1 After installation, the same communication port must be selected to defi ne the Thysetter parameters (typically COM4, COM5,...).

••

•

•

ser ia l -sch.ai

L10041

TXD

RXD

DTR

GND

4

3

1

2

1

2

3

4

6

7

8

95

Female connector

RJ10 Connector Pin1

ser ia l -sch.ai

L10041

TXD

RXD

DTR

GND

4

3

1

2

1

2

3

4

6

7

8

95

Female connector

RJ10 Connector Pin1


4.4 PROTECTIVE ELEMENTS

Rated valuesTraditional CT inputs

Relay phase nominal current InThe rated value must be set by means dip-switch to 1 A or 5 A, same as the secondary CTs nominal current.

Relay residual nominal current IEnThe rated value must be set by means dip-switch to 1 A or 5 A, same as the secondary nominal current of the residual CT.

Dip-switch is located on the CPU board; the exhaustive treatment of Dip setup is described in the “6.4 SETTING NOMINAL CURRENTS In AND IEn” paragraph.

Low Power CT inputsRelay phase nominal current InThe rated value must be set by means dip-switch to 50 A to 1250 A, same as the primary nominal current of the protected plant. All settings of the current thresholds are referred to the rated cur-rent of the relay In, that corresponds to the primary value automatically set as just described.Dip-switches are located on the rear board; the exhaustive treatment of Dip setup is described in the “6.5 NOMINAL CURRENT In SETTING FOR LPCT” paragraph.

Relay residual nominal current IEnThe rated value must be set by means dip-switch to 1 A or 5 A, same as the secondary nominal current of the residual CT. Dip-switch is located on board of the CPU board; the exhaustive treatment of Dip setup is de-scribed in the “6.4 and 6.5 SETTING NOMINAL CURRENTS In AND IEn” paragraph.

SettingsInside the Set \ Base menu the following parameters can be set:

Primary rated values (phase and residual), employed for measures relative to primary values.Measurements reading mode (Reading Direct or Relative).

Phase CT primary current InpThis parameter affects the measure of the phase currents when the primary measurement reading mode is selected (Reading Direct). It must be programmed to the same value of the phase CT primary nominal current Traditional CTs) or to the value set for the LPCT inputs.

Phase CT primary current InpThis parameter affects the measure of the phase currents when the primary measurement reading mode is selected (Reading Direct). It must be programmed to the same value of the phase CT primary nominal current Traditional CTs) or to the value set for the LPCT inputs.

Example

The phase CT primary current Inp must be set as: Inp = 500 A

Residual CT primary current IEnpThis parameter affects the measure of the residual current when the primary measurement read-ing mode is selected with traditional CTs inputs. It must be programmed to the same value of the residual CT(s) primary nominal current.

Example 1

•

•

•

••

••

•

•

•

Es-In.ai

KTA = 500A/5A=100

52

In

NA016

IL1...IL3

LPC

Ts C

URRE

NT

INPU

TSL1

L2

In = 500 A

In = 500 A

In = 500 A

LPCT Setting

800 A400 A

200 A100 A

50 A

L3

In=50...1250A

1A/5A

Es-In.ai

KTA = 500A/5A=100

52

In

NA016

IL1...IL3

LPC

Ts C

URRE

NT

INPU

TSL1

L2

In = 500 A

In = 500 A

In = 500 A

LPCT Setting

800 A400 A

200 A100 A

50 A

L3

In=50...1250A

1A/5A

Es1-IEn.ai

1x KTA = 100 A /1 A

52

IEn= 1 A

NA016

Es1-IEn.ai

1x KTA = 100 A /1 A

52

IEn= 1 A

NA016


The residual CT primary current IEnp must be set as: IEnp = 100 AExample 2

The residual CT primary current IEnp must be set as: IEnp = 100 A

Measurement reading mode- With Reading Relative setting all measures are related to the nominal value,- With Reading Direct setting all measures are related to the primary value.

•

Es2-IEn.ai

3xKTA = 100A / 5A

52

IEn= 5 A

NA016

Es2-IEn.ai

3xKTA = 100A / 5A

52

IEn= 5 A

NA016


Phase overcurrent - 50/51Preface

Three operation thresholds, independently adjustable (I>, I>>, I>>>) with adjustable delay (t>, t>>, t>>>).The fi rst one may be programmed with inverse time according the IEC 60255-3/BS142 standard.The second and third thresholds have a defi nite time characteristic.For the defi nite time thresholds a reset time can be set (t>>RES, t>>>RES) useful to reduce the clearing time for intermittent faults.

Operation and settingsEach phase fundamental frequency current is compared with the setting value. Currents above the associated pickup value are detected and a start is issued. After expiry of the associated operate time a trip command is issued; if instead the current drops below the threshold, the element it is restored.The fi rst threshold (I>) may be programmed with defi nite or inverse time according the following characteristic curves:

Standard Inverse Time (IEC 255-3/BS142 type A or SIT): t = 0.14 · t>inv / [(I/I>inv)0.02 - 1]Very Inverse Time (IEC 255-3/BS142 type B or VIT): t = 13.5 · t>inv / [(I/I>inv) - 1]Extremely Inverse Time (IEC 255-3/BS142 type C or EIT): t = 80 · t>inv / [(I/I>inv)2 - 1]

Where:t: operate timeI>inv: threshold settingt>inv: operate time setting

For all inverse time characteristics, following data applies:Asymptotic reference value (minimum pickup value): 1.1 I>invMinimum operate time: 0.1 sRange where the equation is valid:[1] 1.1 ≤ I/I>inv ≤ 20

For all defi nite time elements the upper limit for measuring is 40 In for traditional CT input versions or 12.5 kA (primary current) for LPCT input versions (e.g. 25 In with In = 500 A).All overcurrent elements can be enabled or disabled by setting the relative start and/or trip output to a selectable relay inside the Set \ Relays menu.The fi rst overcurrent element can be programmed with inverse time characteristic by setting the I>Curve parameter (DEFINITE, IEC/BS A, IEC/BS B, IEC/BS C) available inside the Set \ 50/51 menu.An adjustable reset time delay is provided for second and third threshold (t>>RES, t>>>RES).

Note 1 When the input value is more than 20 times the set point , the operate time is limited to the value corresponding to 20 times the set point

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t - int-F50-51.ai

II>>def I>>>def

I>inv

t>>>def

t>>def

I>inv

t

General operation time characteristic for the phase overcurrent elements - 50/51

TRIP

t - int-F50-51.ai

II>>def I>>>def

I>inv

t>>>def

t>>def

I>inv

t

General operation time characteristic for the phase overcurrent elements - 50/51

TRIPTRIP

Timers-F50-51.ai

I>> Start

I>> Trip

t>>def t>>def

INPUT

t>>RES t>>RES t>>RES

tI>> element - 50/51 - phase overcurrent timers Timers-F50-51.ai

I>> Start

I>> Trip

t>>def t>>def

INPUT

t>>RES t>>RES t>>RES

tI>> element - 50/51 - phase overcurrent timers


Fun_50-51S1.ai

I L1

t>inv

0T≥1

I >inv

t>inv

Star t I>

Tr ip I>

I L1 ≥ I >inv

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

I> Curve

0TI L2

I L2 ≥ I >inv

I L3

I L3 ≥ I >inv

I>Start relays I>Start LEDs

I>Trip relays I>Trip LEDs

I L1

t>>def

0T≥1

I >>def

t>>def

Star t I>>

Tr ip I>>

I L1 ≥ I >>def

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

I L2

I L2 ≥ I >>def

I L3

I L3 ≥ I >>def

I>>Start relays I>>Start LEDs

I>>Trip relays I>>Trip LEDs

t >>RES

T0

t >>RES

I L1

t>>def

0T≥1

I >>>def

t>>>def

Star t I>>>

Tr ip I>>>

I L1 ≥ I >>>def

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

I L2

I L2 ≥ I >>>def

I L3

I L3 ≥ I >>>def

I>>>Start relays I>>>Start LEDs

I>>>Trip relays I>>>Trip LEDs

t >>>RES

T0

t >>>RES

General logic diagram of the phase overcurrent elements - 50/51


Residual overcurrent - 50N/51NPreface

Three operation thresholds, independently adjustable (IE>, IE>>, IE>>>) with adjustable delay (tE>, tE>>, tE>>>).For each threshold a reset time can be set (tE>RES, tE>>RES, tE>>>RES) useful to reduce the clearing time for intermittent faults.

Operation and settingsThe residual fundamental frequency current) is compared with the setting value. Current above the associated pickup value is detected and a start is issued. After expiry of the associated operate time a trip command is issued; if instead the current drops below the threshold, the element it is restored.

For all elements the upper limit for measuring is 10 IEn.All elements can be enabled or disabled by setting the relative start and/or trip output to a selectable relay inside the Set \ Relays menu.

An adjustable reset time delay is provided for every threshold tE>RES, tE>>RES, tE>>>RES).

t - int-F50N-51N.aiIE

t E>def

IE>def IE>>def

t E>>def

t

TRIP

General operation time characteristic for the residual overcurrent elements - 50N/51N

t - int-F50N-51N.aiIE

t E>def

IE>def IE>>def

t E>>def

t

TRIPTRIP

General operation time characteristic for the residual overcurrent elements - 50N/51N

Timers-F50N-51N.ai IE> element - 50N/51N - residual overcurrent timers

IE> Start

IE> Trip

tE> tE>

INPUT

tE>RES tE>RES tE>RES

t

Timers-F50N-51N.ai IE> element - 50N/51N - residual overcurrent timers

IE> Start

IE> Trip

tE> tE>

INPUT

tE>RES tE>RES tE>RES

t


t>RES

T0

t E>RES

I E

IE>def t E>def

Fun_50N-51NS1.ai

t E>def

0T

Star t IE>

Tr ip IE>

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

I E ≥ I E>def

IE>Start relays IE>Start LEDs

IE>Trip relays IE>Trip LEDs

t>>RES

T0

t E>>RES

I E

IE>>def t E>>def

t E>>def

0T

Star t IE>>

Tr ip IE>>

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

I E ≥ I E>>def

IE>>Start relays IE>>Start LEDs

IE>>Trip relays IE>>Trip LEDs

General logic diagram of the residual overcurrent elements - 50N/51N


4.5 CONTROL AND MONITORING

Data LoggerPreface

When remotely controlled by shunt trip coil is employed a data Logger is advisable to provide a full monitoring of the protection system.[1]

Any power down of the auxiliary power supply are logged inside the 100 events; Power up and Power down are stored inside distinct eventsA dedicated element is provided for the Trip Circuit Supervision function; any fail inside the trip circuit is monitored (break on the coil and the circuit, power supply failure). The congruity of the auxiliary contact is detected in run time mode (52a and 52b), any failure is detect and stored inside the 100 events.Any setting change is logged and information is stored inside ten memory register with time stamp (date-time); any change is always stored inside the 100 events.Any start and/or trip of a protection element is stored inside the 100 events with time stamp (date-time); moreover a detailed information (trip cause, input currents, I/O states, faulted phase) is stored inside twenty memory register.The relay diagnostic (self-test) is verifi ed; any failure may drive relays and LEDs.

Trip circuit supervision - 74TCSPreface

The trip circuit can be monitored to signal possible anomalies that would lead to the missing opening of circuit breaker when trip and/or operator command are issued.Circuit interruption as well as missing of auxiliary voltage and/or coil faults are detected.

Operation and settingsThe 74TCS element may be enabled or disabled; to enable it, the 74TCS Enable parameter must be set to ON inside the Set \ Circuit breaker menu.By means of the right sizing of a resistor, the trip circuit supervision may be performed even with lower control voltage (e.g. when the control voltage is less than 36 V required for driving of two binary inputs, typically UAUX = 24V). The binary input is connected to the trip and an external resistor must be connected the 52b auxiliary contact.

Note 1 The Data Logger function is available on request (to be selected on order ).

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•

•

•

•

50N 51N

50 51

DG

TA

TO

PG

74TCS

NA016

SELF

LOGGER

50N 51N

50 51

DG

TA

TO

PG

74TCS

NA016

SELF

LOGGER

TCS1s.ai

TRIP

R

+UAUX

-UAUX

52a 52b52

NA016

IN3

Binary input INx Towards 74TCS logic

Trip Circuit Supervision - 74TCS TCS1s.ai

TRIP

R

+UAUX

-UAUX

52a 52b52

NA016

IN3

Binary input INx Towards 74TCS logic



The fault condition of the trip circuit is detected by binary input power down.With healthy circuit and TRIP contact closed, the binary input is feed across the 52a path (CB closed) or across the resistor R and 52b path (CB open).When the TRIP contact turns ON, the binary input becomes short-circuited; to avoid untimely opera-tions the previous condition are checked every 80 ms and the output is issued after a 40 s delay in order to allow the fault clearing and the consequent reset of the TRIP protection. Outputs are reset to zero after 6 s from the TRIP contact open.[1]

How to calculate resistanceBoth the following conditions must be fi lled:

The circuit breaker coil must no be powered when the CB is open and an open command is is-sued;The binary input is energized when the trip contact open.

If the circuit breaker is just open an unnecessary excitation must be avoided; the most critical event arises when the TRIP contact is closed (e.g. manual or test command), so with minimal series resistance. To avoid an unwanted excitation the series resistance must be higher than a minimum value defi ned as:

Rmin = RTC · (UAUX - UTCmin) / UTCminwhere: UTCmin: minimum coil excitation voltage UAUX: auxiliary voltage RTC: coil resistance

To energize the binary input circuit when the TRIP contact and CB open, the series resistance must be lowerer than a maximum value defi ned as:

Rmax = [(UAUX - UDIGmin) / IDIG] - RTCwhere: UDIGmin: minimum binary input excitation voltage (18 V) UAUX: auxiliary voltage RTC: coil resistance IDIG: binary input excitation current (0.003 A)

To satisfy the above requirements, the R value must be chosen between the Rmin and Rmax values; typically the normalized value nearest the arithmetic mean:

R = (Rmin + Rmax) / 2

The power dissipated by the R resistor is:

PR = R · I 2 = R · [UAUX / (R + RTC)] 2

ExampleUAUX = 110 Vcc (auxiliary voltage)PTC = 50 W (coil power)RTC = UAUX2 / PTC = 242 Ω (coil resistance)UTCmin = 77 V (minimum coil excitation voltage = 70% UAUX )UDIGmin = 18 V (minimum binary input excitation voltage)IDIG = 0.003 A (binary input excitation current)

Rmin = RTC · (UAUX - UTCmin) / UTCmin = 242 · (110 - 77) / 77 = 103.7 Ω

Rmax = [(UAUX - UDIGmin) / IDIG] - RTC = [(110 - 18) / 0.003] - 103.7 = 30563 Ω

R = (Rmin + Rmax) / 2 = (103.7 + 30563) / 2 = 15333 Ω ~ 15 k Ω

PR (Power dissipated by the R resistor) = UAUX2 /R = 1102 / 15000 = 0.8 W

PR = R · I 2 = R · [UAUX / (R + RTC)] 2

Note 1 The trip contact (TRIP) of the protection relays must be set with automatic reset (No-latched operating mode).

1)

2)

1)

2)

Fun-74TCS1.ai

040 s

T 06 s

T&Enable (ON≡Enable)

74TCS

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

IN3

Tr ip 74TCS

Relay Tr ip 74TCSLED Tr ip 74TCS

Tr ip 74TCS

Logic diagram concerning the Trip Circuit Supervision - 74TCS Fun-74TCS1.ai

040 s

T 06 s

T&Enable (ON≡Enable)

74TCS

TRIP

PING

MAT

RIX

(L

ED+R

ELAY

S)

IN3

Tr ip 74TCS

Relay Tr ip 74TCSLED Tr ip 74TCS

Tr ip 74TCS

Logic diagram concerning the Trip Circuit Supervision - 74TCS


Circuit breaker supervisionPreface

By means 52a and 52b auxiliary contacts, the CB position is acquired. Depending on such information the Open and/or Close commands can be safely issued by user.

The wrong congruity of the auxiliary contact is detected in run time mode (52a and 52b), by means of two binary inputs; any failure is detect and stored inside the 100 events (Data Logger).

Operation and settings52a is the auxiliary contact in the breaker that is in the same position as the breaker (52a open = CB open). It must be assigned to the IN2 binary input.52b is the auxiliary contact in the breaker that is in the opposite position as the breaker (52b open = CB closed)). It must be assigned to the IN1 binary input.

Fun-CB-position.ai

TRIP

PING

MAT

RIX

(L

ED)

52a ON/OFF

t mask

0T

t mask

CB moni tor ing

52b ON/OFF

52a52

52b

+UAUX

-UAUX

IN2

IN1=1

Logic diagram concerning the Circuit Breaker monitoring Fun-CB-position.ai

TRIP

PING

MAT

RIX

(L

ED)

52a ON/OFF

t mask

0T

t mask

CB moni tor ing

52b ON/OFF

52a52

52b

+UAUX

-UAUX

IN2

IN1=1

Logic diagram concerning the Circuit Breaker monitoring


TestThe test function allows the checking of each 50-51 and 50N-51N protection function threshold by means of the introduction of a dummy signal, with twice the setting threshold value and duration as to cause the start and/or tripping of the threshold itself, into the input circuit stages of the relay. This test does not include checking the system measuring transformers and the relevant connec-tions to the digital protection relay. Having activated the test function mode, the threshold relating to the protective function to be checked and the relevant test method must be selected. The latter may or may not include changing the status of the output relays assigned as the selected threshold start and /or trip. For the thresholds relating to protective functions 50 and 51 the dummy signal is applied simultane-ously over all phases. Example, with setting t>inv = 1 s, the operate time for the fi rst element 50/51is:

10 s with IEC/BS A characteristic13.5 s with IEC/BS B characteristic26.6 s with IEC/BS C characteristic

In cases involving selection of the test mode without any changes in the status of the output relays (“blank” Testing), upon tripping of the selected threshold, the corresponding LED is lit and the test outcome recorded as the most recent event. The test condition is shown by means of the blinking green LED ON.[1]

Test I> ledTest I>> ledTest I>>> ledTest IE> ledTest IE>> led

In cases involving selection of the test mode with changes in the status of the output relays, at the start and/or tripping of the selected threshold the corresponding programmed output relay is switched, the corresponding LED lit and the outcome recorded as the most recent event. The test condition is shown by means of the blinking green ON.[2]

Test I> fullTest I>> fullTest I>>> fullTest IE> fullTest IE>> full

For both modes the test may be ended by means of the Test off command; in any case they are ended after 2 minutes.

Oscillography Set trigger

Following parameters, available inside the Oscillography \ Setting menu, are user-programmable:

Pre-trigger time.

With setting of the Trigger parameter General start or General trip the recording starts with state change of any protection elements.With setting of the Trigger parameter Manual the recording starts with manual command (Thy-Setter).With setting of the Trigger parameter K1...K4 the recording starts with state change of the se-lected output relay.With setting of the Trigger parameter IN1, IN2, IN3 he recording starts with state change of any binary input.With setting of the rigger aux parameter Start I>, Start I>>, Start I>>>,.... the recording starts with state change of start or trip of the selected protection element.

Set measured channels

The analog measures ((iL1, iL2, iL3, iE), IL1, IL2, IL3, IE) may be select inside the Oscillography \ Setting \ Analog channel 1...4 menu.Everyone of four analog channel may be associated to one of the selected measures.

Set digital channelsThe desired I/O signals may be select inside the Oscillography \ Setting \ Digital channels menu(General start, General trip, K1... K4, , IN1, IN2, IN3).

Note 1 The test is performed (LED) even if the concerning element is assigned to almost one output relay

Note 2 The test is performed (LED & relays) even if the concerning element is assigned to almost one output relay

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trigger.ai

Trigger

Timepre-trigger

record length

post-trigger

0...63 T

trigger.ai

Trigger

Timepre-trigger

record length

post-trigger

0...63 T

37NA016 - Manual - 06 - 2011MEASURES, LOGIC STATES AND COUNTERS

5 M E A S U R E S , L O G I C S T A T E S A N D C O U N T E R S 5 M E A S U R E S , L O G I C S T A T E S A N D C O U N T E R S Measures

RMS value of fundamental component for phase currents (IL1, IL2, IL3)RMS value of fundamental component for measured residual current (IE)

Circuit breaker

The CB and Trip Circuit Supervision states are providedPosition Open - Closed - UnknownTCS On - Off

and the binary inputs state:IN1-52b On/OffIN2-52a On/OffIN3-TCS On/Off

CountersFor every protective element and control function several counters are available; the partial coun-ters can be cleared by the user.Every partial counter is reset to zero when ten thousand count is passed. All partial counters can be cleared by means a single command; for this purpose the Reset coun-ters command must be issued available inside the Reset menu.

Counter ST I>Counter ST I>>Counter ST I>>>Counter ST IE>Counter ST IE>>Counter TR I>Counter TR I>>Counter TR I>>>Counter TR IE>Counter TR IE>>

Fault recording - SFRRecording[1] is triggered by:

Relay activation (OFF-ON)External trigger (binary input) programmed as Fault triggerElement start or trip

Twenty events are recorded into a circular FIFO (First In, First Out) buffer.[2]

Following information are stored in every record (Read \ Faults \ Info menu):Fault counter (Faults stored)[3]

Last faultDate and time (S-Year)Date and time (S-Year)Date and time (S-Month)...Date and time (S-MillisecondFault cause (F-Cause)Phase currents (F-IL1, F-IL2, F-IL3, F-IE)Residual current IEr or IECrInputsOutputsFault cause info (F-Phases)

The fault log may be erased by means of the command available inside the Read \ Faults \ Reset menu.

Event recording - EventsRecording is triggered by:

Power up and/or Power down.Element start or trip.Binary input switch (OFF-ON or ON-OFF).Setting modify.Control function trip (TCS OFF-ON or ON-OFF and CB switch OFF-ON or ON-OFF).

One hundred events are recorded into a circular FIFO (First In, First Out) buffer (Read \ Events \ Info menu).[4]

Following information are stored in every record (Read \ Faults \ Event menu):Event counter (Events stored) [5]

Last Event

Note 1 Data concerning the twenty events are stored into non volatile memory; they are held in spite of power down

Note 2 Fault 0 is the newest event, while the Fault 19 is the oldest event

Note 3 Counter is updated at any new record; it may be cleared by means ThySetter

Note 4 The newest event data are stored inside the event addressed by the Last event parameter (1...100)


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3838 NA016 - Manual - 06 - 2011 MEASURES, LOGIC STATES AND COUNTERS

Date and time (S-Year)Data e ora (S-Year)Data e ora (S-Month)...Data e ora (S-Millisecond)Event cause (E-Cause)

Setting changes - SettingsAny change on the following parameters are stored:

Output relays (function, logic and mode).CB position monitoring enabling.TCS enabling.Threshold changes.

Ten events are recorded into a circular FIFO (First In, First Out) buffer.[1]

Following information are stored in every record (Read \ Faults \ Info menu):Fault counter (Setting stored)[2]

Last settingFollowing information are stored (Read \ Settings \ Setting menu):

S-Number counterS-I>CurveS-I>inv (I>threshold)S-t>inv (I> operate time)S-I>>def (I>> threshold)S-t>>def (I>> operate time)S-I>>>def (I>>> threshold)S-t>>>def (I>>> operate time)S-IE>def (IE> threshold)S-tE>def (IE> operate time)S-IE>>def (IE>> threshold)S-tE>>def (IE>> operate time)S-CB DiagnosticS-74 TCSS-K1 (K1 assignment)S-K1 logic (K1 logic)S-K1 mode (K1 mode)S-K2 (K2 assignment).....S-Year (Date)S-Month (Date)...S-Second (Time)

InfoCode NA016-aSerial ...... (Serial number)Firmware release ...... (eg: 2.00)Nominal freq. (eg: 50 or 60 Hz)Firmware release ...... (ef: 1.00)Protocol release ...... (eg: 1.00)

Protections tripProtections trip (eg: Trip I>>)

Self-testFollowing information are available (Read \ Self test \ Info menu):

TypeSelf-test causeSelf-test latch

The relay self-test function classifi es relay operational anomalies according to three levels: - MINOR ANOMALY: The device continues to function within the possible limits with the protective devices activated; - MAJOR ANOMALY: Operation of the device may be corrected by the operator by resetting the initial (default) confi guration and hence the desired settings; - FATAL ANOMALY: All logic and protective functions are inoperative and the relay must be returned to the factory. The internal self-test function is capable of detecting the following anomalies and indicating them by means of messages: - defective auxiliary power supply (FATAL ANOMALY); - output relay coil breakage (FATAL ANOMALY); - alteration of the calibration data stored in EEPROM memory (FATAL ANOMALY); - alteration of the parameters (threshold setting, times, relays… etc.) in EEPROM memory (MAJOR ANOMALY);

Note 1 The last change on settings ia stored inside memory addressed by the Last setting (1...10) parameter


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39NA016 - Manual - 06 - 2011MEASURES, LOGIC STATES AND COUNTERS

- alteration of the data (counters, records, ...etc.) in EEPROM memory (FATAL ANOMALY);Upon detection of at least one of the above mentioned anomalies, the output relay programmed for Self-test is switched and the information is recorded (latched).

Oscillography - DFR[1]

Upon programmable trigger, the fault records are recorded in COMTRADE[2] format; the sampled measures (16 sample per cycle) are stored in a circular memory buffer. The fault record are self-triggered; two records are stored in sequential order.An operating procedure example for the digital fault recording is illustrated inside the ThySetter section.

Following parameters are user-programmable:[3]

Pre-trigger time (0...63 T where T = number of power cycles; Example, with settings T=4 the pre-trig-ger duration is 80 ms with f = 50 Hz).

Selected sampled quantities.Analog channels (1...4) allocation.Digital channels allocation (output relay and/or binary inputs).Trigger setup; the information storage starts when a state transition on the selected signal occurs. (protective element start and/or trip, output relay and/or binary input switching).

Since the buffer size fi xed, the duration of the two recordings is variable and is then given the user-defi ned setting, with the following parameters:

Pre-trigger times (number of periods)Number of allocated channels.

Example 1With the following setting:

Analog channel 1: iL1Analog channel 2: iL2Analog channel 3: iL3Analog channel 4: iL4Digital channel: K1Pre-trigger: 1 T (20 ms)

the stored record length of the two records with f = 50 Hz is 240 ms

Example 2With the following setting:

Analog channel 1: iL1Analog channel 2: -Analog channel 3: -Analog channel 4: -Digital channel: K1Pre-trigger: 1 T (20 ms)

the stored record length of the two records with f = 50 Hz is 640 ms

Note 1 The oscillographic recorder requires a licence; to purchase it please contact Thytronic.

Note 2 COMTRADE format; (Common Format for Transient Data); This is a standard for the data exchange for various types of tests or simulation data, etc, for power system applications.

The measurements are recorded in ASCII or BINARY format. COMTRADE fi les always come by pairs: The “.CFG”-fi le describing the confi guration: number of analog and digital channels, sampling rate, scale factors, etc. The “.DAT”-fi le containing the data The COMTRADE is part of IEC 60255-24 standard. The recording can be analyzed by mean of ThySetter sw or any other standard compliant viewer.

Note 3 As all settings, the settings take effect only after sending the Store command

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trigger.ai

Trigger

Timepre-trigger

record length

post-trigger

0...63 T

trigger.ai

Trigger

Timepre-trigger

record length

post-trigger

0...63 T

trigger.ai

Trigger

Time240 ms

1 T20 ms

trigger.ai

Trigger

Time240 ms

1 T20 ms

4040 NA016 - Manual - 06 - 2011 MEASURES, LOGIC STATES AND COUNTERS

oscillo-phase.aiPhase/to/phase fault record

Display exampleThe fi gure below shows the registration of the followings:

Instantaneous value of phase current IL1 (IL1)Value of fundamental component of phase current IL1 (IL1 Measure)Logic state input IN1

Recording is started (triggers), with pre-trigger = 2T, I> start (General start).

•••

41NA016 - Manual - 06 - 2011INSTALLATION

6 I N S T A L L A T I O N6 I N S T A L L A T I O N

6.1 PACKAGING

Packaging consists of a paperboard packaging guaranteeing adequate protection for transport and storage under normal environmental conditions. The Pro-N protection relays must be stored within the required temperature limits; the relative hu-midity should not cause condensation or formation of frost.It is recommended that the devices are stored in their packaging; in the case of long storage, espe-cially in extreme climatic conditions.It is recommended that the packaging not be disposed of into the environment, but kept in case the relay should be moved at some later time.

6.2 MOUNTING

The devices are housed inside metal cases suitable assembly:Flush mountingRack9”.

Flush mountingThe fi xed case, fi tted with special fastening brackets, is mounted on the front of electric control board, previously drilled as indicated in the drawing.In case of side-by-side mounting of several relays the minimum drilling distance is determined by the front dimensions indicated in the overall dimensions drawing, increased by 3 mm, to ensure an adequate tolerance and gasket space between adjacent relays.The depth dimension, as indicated in the drawing, must be increased by as much as needed to allow room for the wiring.

Remove the upper tile and open the little door to access the fastening screws.

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75 30107

177

ON 41 32 5

TRIP

START

102.5 ±0.3

70

161

154

N.4 fori ø 3.5

101

171

149

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

C1 C2

C4C3

C5 C6

C7 C8

E1

75 30107

177

ON 41 32 5

TRIP

START

102.5 ±0.3

70

161

154

N.4 fori ø 3.5

101

171

149

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

C1 C2

C4C3

C5 C6

C7 C8

E1

Remove-t i le.aiRemoving tie to access the fastening screws Remove-t i le.aiRemoving tie to access the fastening screws

4242 NA016 - Manual - 06 - 2011 INSTALLATION

The fi xed case is fastened by means of four screws onto the panel as indicated in the drawing.

Rack mountingFor mounting inside a standardized 19-inch system (EIA 310-D, IEC 60297 and DIN 41494 SC48D), the MAR adapter is required (available on request).

To allow opening of the keyboard door a one unit space must be provided when several rack are overlapping mounted.

•

Flush-mount1.aiFlush-mount1.ai

Rack-mount.aiRack mounting

177

(4U)

101.

6

482.6465

ON 41 32 5

TRIP

START ON 41 32 5

TRIP

START ON 41 32 5

TRIP

START ON 41 32 5

TRIP

START

Rack-mount.aiRack mounting

177

(4U)

101.

6

482.6465

ON 41 32 5

TRIP

START ON 41 32 5

TRIP

START ON 41 32 5

TRIP

START ON 41 32 5

TRIP

START

Rack-mount1.aiRack mounting Rack-mount1.aiRack mounting


6.3 ELECTRICAL CONNECTIONS

Electrical connections should be made by referring to the connection diagram; in cases where cer-tain of the circuits (communication, block, or others) are not used, the relevant connections must remain open. Examples of connection diagrams are reported on Appendix to this manual.

For the A1...A22 connections and E1...E3 (RS485), screw terminals with following characteristics are available:

Nominal cross section: 0.14...2.5 mm2 (AWG 26...16) for single conductor da 0.14 a 0.75 mm2 for two conductors with same cross section

Tightening torque: 0.5-0.6 NmStripping length: 8 mm

The connections to the current signal inputs C1...C8 can be made by ring lugs suitable for M4 screws and an insulating panel covering the terminals may be mounted for safety purposes.

•

••

Devices must be installed by qualified personnel only. No liability is accepted from Thytronic due to improper use.CAUTION Devices must be installed by qualified personnel only. No liability is accepted from Thytronic due to improper use.CAUTION

Amperometric phase inputs from traditional CTs

Amperometric input from residual CT


Amperometric phase inputs from LPCTs

RS485

12

3

B-

A+UAUX

≅

A4A5K2

A2A1

A3K1

A11A10

A12K4

A13A14

A9

A7A8

A6

K3

A15A16A17A18A19

IN1

A20A21A22

IN2

IN3

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

C1 C2

C4C3

C5 C6

C7 C8

E1

31

2

RS485

12

3

B-

A+C7 C8

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

E1

31

2

L1

(100+200)300A

EX. In=

LPCT50

L3

200400

100

800

Setting

L2

L3

L2

L1

1 2 3 4 5

1 2 3 4 5

1 2 3 4 5

UAUX

≅

A5A4

A6K1

A11A10

A12K4

A13A14

A3

A1A2K3

A9

A7A8K2

A15A16A17A18A19

IN1

A20A21A22

IN2

IN3

Amperometric phase inputs from traditional CTs



Amperometric phase inputs from LPCTs

RS485

12

3

B-

A+UAUX

≅

A4A5K2

A2A1

A3K1

A11A10

A12K4

A13A14

A9

A7A8

A6

K3

A15A16A17A18A19

IN1

A20A21A22

IN2

IN3

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

C1 C2

C4C3

C5 C6

C7 C8

E1

31

2

RS485

12

3

B-

A+C7 C8

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

E1

31

2

L1

(100+200)300A

EX. In=

LPCT50

L3

200400

100

800

Setting

L2

L3

L2

L1

1 2 3 4 5

1 2 3 4 5

1 2 3 4 5

UAUX

≅

A5A4

A6K1

A11A10

A12K4

A13A14

A3

A1A2K3

A9

A7A8K2

A15A16A17A18A19

IN1

A20A21A22

IN2

IN3


Core balanced CTProper installation is shown in fi g. 1a and 1b.The current balance transformer, when used for measuring residual current, must be crossed in the same direction by all active conductors and hence, also by the neutral conductor if distributed, with the exception of the ground connection protective conductor. The drawing below shows cases of assembly of the toroid on unscreened and screened cables; prior to proceeding with assembly, it is necessary to check that there are no screen-to-ground connections upstream of the sensor.

In order to ensure a linear response from the sensor, the cables must be positioned in the centre of the transformer so that the magnetic effect of the three cables is perfectly compensated in the absence of residual current (Fig.2a). Hence, the assembly indicated in the drawing of fi g.2b, in which phase L3 causes local magnetic saturation whereby the vectorial sum of the three currents would be non-null, should be avoided. The same considerations also apply when the sensor is positioned near bends in the cabling. It is recommended that the transformer be placed away from bends in the conductors).The use of a balance transformer with an inside diameter about twice the diameter of the the cable going through it is recommended.

Fig. 1a Fig. 1b

Armoring

Load Load

Source Source

Insulated cables

Shielded cables

Armoring

Toroide.ai Current balanced transformerFig. 1a Fig. 1b

Armoring

Load Load

Source Source

Insulated cables

Shielded cables

Armoring

Toroide.ai Current balanced transformer

Fig. 2a Fig. 2b Fig. 2c

L1

L3L2

L1

L3L2

Toroide.ai Current balanced transformer


EarthA protective ground connection is required, which must be connected to the suitable screw with a separate lead of at least 2.5 mm2; the connection from A21 or a22 terminal and the ground srew is also required.[1]

CT amperometric inputsThe amperometric input circuits are assembled inside the fi xed module, so no short circuit on the secondary CTs must be provided when the removable module is pulled outIn the event of case replacement, some camps must be provided externally to shorting the second-ary CTs circuits to avoid secondary open circuit of CTs that may endanger equipment or people.

When making the current connections, attention must be paid to not exceeding the performance of the line current transformers. To be exact, the total load, constituted by the protective relay, any other protective relays or measuring instruments and the resistance of the connections, must not ex-ceed the line CT performance. In particular, consumption of the relay input circuit must not exceed 0.2 VA while the load (expressed in VA) constituted by the conductors is given by:

0.018 × L × In2 / Swhere: L the overall length, expressed in m, of the two conductors in relation to each phase; In nominal current of the line CT expressed in A;S cross sectional area of the current conductors expressed in mm2.It is recommended that cabling of a suitable thickness be used in order to limit wear of the CT sec-ondary circuits.

LPCT amperometric inputsThe amperometric input are designed for Low Power Current Transformer with 100 A - 22.5 mv ratio. Connections to NA016 device must be carried out by means RJ45 plugs, forming a part of the Trans-former.[2]

Note 1 The A21 and A22 terminal are link together inside the relay

Nota 2 For technical data please call Thytronic.

In case of disconnection CT wiring to the case, pay attention must to do not open live circuits.CAUTION In case of disconnection CT wiring to the case, pay attention must to do not open live circuits.CAUTION

rear.aiEarthing


Binary inputsThe dry input circuits, despite being galvanically isolated, must preferably be supplied with the same auxiliary voltage of the control panel.The inputs are polarity free with wide voltage range.

The optocupled inputs are immune to transitory interferences, however the following recommenda-tion must be considered in high disturbed environments:

Position input wiring away from high energy sources.Use shielded cables with ground connection on only one end (preferably at the relay side.

Output relaysFour output relays are available (SPDT, type C):

K1, K2 and K4 (trip relays).K3 (signalling relay).

It is advisable to verify that the technical characteristic of the contacts be suitable for the applied load (about current, nominal voltage, make and break current , etc..).All contacts are shown in de-energized state for standard reference

RS232 portThe link from PC and NA10 serial port must be established by means a L10041 cable.

When no RS232 port is available on Personal Computer, a suitable USB to RS232 converter must be employed.After installation, the same communication port must be selected to defi ne the Thysetter parameters (typically COM4, COM5,...).

••

••

+UAUX

-UAUX

A13

A14 IN1

A B

A15

A16 IN2

A17

A18 IN3

+UAUX

-UAUX

A13

A14 IN1

A B

A15

A16 IN2

A17

A18 IN3

serial1-sch.ai

L10041

Female connector(solder side view) USB-RS232 converter

(if none RS232 PC port is available)

TXD

RXD

DTR

GND

4

3

1

2

1

2

3

4

6

7

8

95

RJ10 Connector Pin1

serial1-sch.ai

L10041

Female connector(solder side view) USB-RS232 converter

(if none RS232 PC port is available)

TXD

RXD

DTR

GND

4

3

1

2

1

2

3

4

6

7

8

95

RJ10 Connector Pin1


RS485 portRS485 communication circuit connections must be made using screened twisted pair cable observ-ing the polarities; screening must only be connected to the end terminating at the RS485 interface circuit pertaining to the monitoring unit. It is recommended to terminate the line at the extremities of the same; this must be performed on the RS485 line control unit and on the NA016 device placed at the furthest point connecting the specially provided resistor; termination can be made by means a jumper between the E1-E2 terminals.Termination resistors allow adjusting the impedance of the line, reducing the infl uence of the induc-tive components of the same, which might compromise good communication.

RS485

120 Ω

SUPERVISION UNIT

OUTP

UT R

ELAY

S

UAUXA1 ≅

A2

A9

A10

A11A12

A13

A14

E1

E1

THYB

US

D1

ETHE

RNET

A3A4A5A6A7A8

K2

K3

K4

K5

K6

K1

RS48

5

F1F2F3F4F5A+

A+

B-

B-

BLOC

K OU

T

BLOC

K IN A15BLOUT-

BLOUT+ A16

BIN

ARY

INPU

TSA19

A18A17

IN1

IN2

A20A21A22

C1IL1

IL2

IL3

IE

CURR

ENT

INPU

TSC2C3

C4C5

C6

C7

C8

Pro-N

RS23

2

FRONT PANEL

RS485-wir ing.ai

NA016

RS48

5

1

23A+

B-


6.4 NOMINAL CURRENT In AND IEn SETTING

CT amperometric phase inputsFactory default settings:

Nominal phase current In: 5 ANominal residual current IEn: 1 A

To modify settings, the dip-switches placed on the front board must be changed (the case must be open).

The following operations must be performed:Remove the auxiliary supplyRemove the upper tile and open the little door to access the fastening screws.

Unscrew gradually back to back the four fastening screw in order avoid loss of the internal washer.Unmounting of the case from the switchboard is not needed.Rotate the MMI module with care to not disconnect the fl at cable.

Avoid touching the printed circuit and connections[1],

Note 1 There are components present which are sensitive to electrostatic discharge. When the module is removed, it is important to pay particular attention to avoid any accidental contact with the internal components. In order to avoid the static electricity accumulated in the human body from causing damage, it is recommended to observe the following precautions: - eliminate any potential differences between the human body and the device by touching the metallic case, - avoid touching the printed circuit and connections (tracks, component terminals), - avoid handing the device to others, - set the programming DIPs by using antistatic tools.

••

••

•••

•

Turn off power supply before opening the case.CAUTION Turn off power supply before opening the case.CAUTION

Remove-t i le.aiRemoving tie to access the fastening screws Remove-t i le.aiRemoving tie to access the fastening screws


Set the dip-switches on the top of the circuit board in accordance with the drawing shown below,.

Move dip-switches according the following layout.[1]

Note 1 Place switches 1 ... 4 according to the number on the printed circuit board (not considering the numbers on the component)

•

•

Dip-swithes positionDip-swithes position

Dip-switch localization concerning the nominal current setting inside the front board

Default settings:- In =5 A- IEn =1 A

Settings:- In =5 A- IEn =5 A



1 A

5 A

ON

IL1

IL3

IL2

IE

1 A

5 A

ON

IL1

IL3

IL2

IE

1 A

5 A

ON

IL1

IL3

IL2

IE

1 A

5 A

ON

IL1

IL3

IL2

IE

1234

1234

1234

1234


6.5 NOMINAL CURRENT In SETTING FOR LPCT

LPCT amperometric phase inputs

Factory default settings: Primary nominal phase current In: 300 ANominal residual current IEn: 1 A as shown in the previous pages)

To modify the phase rated currents, the dip-switches placed on the rear panel must be set. [1]

Note 1 For LPCT versions the dip-switch position, located inside the CPU board, concerning the phase 1 A or 5 A current setting are irrelevant

••

C7 C8

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

E1

31

2

LPCTSetting

(100+200)300A

EX. In=

50

200400

100

800

50

200400

100

800

L3

L2

L1

1 2 3 4 5

1 2 3 4 5

1 2 3 4 5 In= 300 A (100 + 200) Factory default setting

In= 50 A Minimum setting

In= 1250 A (800 + 400 + 50) Maximum setting

configurations not allowed !

cursor


6.6 LED ALLOCATION

Eight indicator LEDs[1] and six keys[2] are available on the front panel:

6.7 FINAL OPERATIONS

Before energizing the electric board, it is advisable to check that:The auxiliary voltage in the panel falls within the operative range of relays.The rated current of the line CT’s corresponds to the settings of relay.All wirings are correct.All screws are tightly screwed.

Note 1 The LEDs 3, 4 (CB position) and 5 (TCS) are enabled only when the logger is enabled

Note 2 The “I” e “0“ keys are disabled

••••

Start

TCSCB CLOSED (52b)CB OPEN (52a)

50-51 (I>, I>>, I>>>)50N-51N (IE>, IE>>)

Trip

Key disabled

Key disabled

Start


50-51 (I>, I>>, I>>>)50N-51N (IE>, IE>>)

Trip

Key disabled

Key disabled

5252 NA016 - Manual - 06 - 2011 SETTING AND COMMISSIONING

7 P R O G R A M M I N G A N D S E T T I N G S7 P R O G R A M M I N G A N D S E T T I N G S

All relay programming and adjustment operations may be performed through MMI (keyboard and display) or using a Personal Computer with the aid of the ThySetter software.

7.1 SW ThySetter

The ThySetter sw is a “browser” of data (setting, measure, etc..); it implements an engine that is afford to rebuild the menu set up and the relationships to data concerning all Thytronic protective relays by means of XML fi les.

ThySetter installationThe latest release of ThySetter can be downloaded free of charge from the www.thytronic.it site (Products - Software).[1]

ThySetter usePlease refer to ThySetter user manual for detailed instructions.The document is available on www.thytronic.it (Product / Sotware / ThySetter - Download area).

Note 1 Starting from the 3.5.9 release it is necessary to download and install not only the application setup but the Template setup also. In case off updating download and install only the new release.

WARNINGFor safety reasons, a change of the following parameters become active only after an hw reset:- Relay nominal frequency (fn)- Ethernet communication parameters (IP host address, IP net mask, Autonegotiation).

WARNINGFor safety reasons, a change of the following parameters become active only after an hw reset:- Relay nominal frequency (fn)- Ethernet communication parameters (IP host address, IP net mask, Autonegotiation).



53NA016 - Manual - 06 - 2011SETTING AND COMMISSIONING

7.2 MMI (Man Machine Interface)

On the front panel there are eight buttons which allow the user to perform all the settings, reading and modifi cation operations.[1]

The adjustment of the settings and the operation mode of the output relays must be performed while the unit is electrically powered; the alphanumeric display shows the necessary information with reference to the operations performed through the keyboard. All preset values are permanently stored in the nonvolatile memory.The buttons take the following operations:

- (Up) move the cursor upwards to the preceding menu options

- (Down) move the cursor downwards to the subsequent menu options

- (Left) move the cursor upwards to the preceding menu options

- (Right) move the cursor downwards to the subsequent menu options

- (Enter) access to the selected menu with the option of modifying any given parameter

- (Reset) abort the current changes and/or accessing the previous menu

At power-up, the display shows the text:“THYTRONICNA016date and time: (01/01/2000 00:00”The ON green Led points out the auxiliary power supply voltage (permanent lighted) and possible faults (blink lighted).The display backlight is automatically activated when any key switch is set.

By means of the (Up) or (Down) buttons, it is possible to cyclically browse through the menu op-tions: Read, Set, Oscillography, Communication, Test, Reset, Time, Option

Having identifi ed the sub-menu of interest, it is possible to gain access by using the (Right) button

and then analogously, run through the relevant options by using the (Up) or (Down) buttons. The full menu tree and some examples are showed in the following pages (numerical values and settings are pointed out as examples and does not agree with real situations.

Reading variables (READ)All data (measure, settings, parameters, etc...) may be displayed:“Measures >”“Circuit breaker >”“Counters >”“Last fault >”“Info >”“Protection trip >”“Self-test >”

Setting modifying (SET)To effect a change, having identifi ed the parameter intended for change, the following procedure must be performed:

Select the parameter going through the menus by means the , and keys.

Begin the setting phase by means of the key; the he modifi cation in progress status is high-lighted by the symbol “E” fl ashing in the upper right area of the display.

Change the parameter by means the (increment) or (decrement) buttons.

Nota 1 The “I” and “0“ keys are disabled

•

•

•

Start


50-51 (I>, I>>, I>>>)50N-51N (IE>, IE>>)

Trip

Key disabled

Key disabled

Start


50-51 (I>, I>>, I>>>)50N-51N (IE>, IE>>)

Trip

Key disabled

Key disabled


Press the (Enter) button; acceptance of the change is indicated by the disappearance of the fl ashing “E” to be replaced by the symbol “!”. On must be remember that changes are NOT ac-tive until the Store command, located in the “Set” menu has been used; in this regard, once the

“Store” message is displayed, it is necessary to use the (Enter) button; this results in the

“execute” message with the symbol “C” fl ashing.

Browse the menu by means of the and or keys to go in the Store menu.

Press the (Enter) button; once more concludes the save procedure with the temporary appear-

ance of the message “ok!”. After one or more modifi cations, the status of having data that has still not been permanently saved is indicated by the “!” symbol in the top right and the display message “WARNING set Clear..

Store” which appears while browsing through the main menu with the use of the or keys.

The Clear command may be used to abandon unsaved changes (prior to use of the Store com-mand); the same effect is achieved by switching the key to the OFF position or removing the auxil-iary power supply to the relay.

ExampleTo set the K1 relay with Energized mode and latched mode (Energized, Latched) the following sequence must be operated:

Select the Set menu “Set >”by means of the key.

Press the key; the message “Base >” is displayed.

Browse the menus with “Relays >”“50/51 >”“50N/51N >”“Circuit breaker >”“Clear >”“Store >”

Select the “Relays >”, menu; the message “K1 None >” is displayed.

Press the key; the message “K1 Logic De-energized” is displayed.

Press the key; the he modifi cation in progress status is highlighted by the symbol “E” fl ashing in the upper right area of the display.

Change the parameter by means the or keys; the message “K1 Logic Energized” is displayed.

Press the key; acceptance of the change is indicated by the disappearance of the fl ashing “E” to be replaced by the symbol “!”.

Press the key; the message “K1 mode No-latched” is displayed.

Press the key; acceptance of the change is indicated by the disappearance of the fl ashing “E” to be replaced by the symbol “!”.

Change the parameter by means the (increment) or (decrement) buttons; the message “K1 mode Latched” is displayed.

Press the (Enter) button; acceptance of the change is indicated by the disappearance of the fl ashing “E” to be replaced by the symbol “!”

Press the key and or to go inside the Store menu.

Press the key; this results in the “execute ?” message with the symbol “C” fl ashing.

Answer with key to confi rm setting.The end of the setting sequence is signalled by the “ok!” message.

The Reset key may be used to abort unsaved changes (prior to use of the Store command); the same effect is achieved by switching the key to the OFF position or removing the auxiliary power supply to the NA016 relay.

TestThe operational tests with or without command of the associated output relays may be performed.

Browse the main menu by means the or keys until the “Test” message is displayed; press

the key to enter and subsequently select the test by means of the or keys.

Test I> ledTest I>> ledTest I>>> ledTest IE> ledTest IE>> ledTest I> fullTest I>> full

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•••••••


Test I>>> fullTest IE> fullTest IE>> full

ExampleTo set the K1 test on the I> element, the following sequence must be operate:

Select the “Test I> full >” menu.

Press the key to enter ; this results in the “execute ?” message with the symbol “C” fl ashing.

Press the key to enter; the test in progress condition is marked by “ok! “ message and blinking of the led ON.[1]

To stop test select the “Test off >” menu, press the key and answer with a further activa-

tion of the key to the “Test off execute? >>” message.

CommunicationInside the Communication menu the setting data of the serial communication ports (rate, stop bit, parity and address) for RS485 Modbus and IEC60870-5-103 may be adjusted.

Browse the main menu by means the or keys until the “Protocol RS485 Modbus >”

message is displayed; press the key to enter; the he modifi cation in progress status is highlighted by the symbol “E” fl ashing in the upper right area of the display.

Select the right menu by means of the or keys “Protocol RS485 Modbus >” or “Protocol RS485 IEC60870-5-103 >”

By means of the or keys adjust the address; the “Address 1” message is displayed and enter the intended value. Similarly for all the parameters:

“Address 1” “Baudrate RS485 9600” “Enable TX delay 2 ms” “Start TX delay 2 ms”

By means of the key and next or go inside the Store menu.

Press the key; this results in the “execute ?” message with the symbol “C” fl ashing.

Answer with key to confi rm settingThe end of the setting sequence is signalled by the “ok!” message.

The Reset h key may be used to abort unsaved changes (prior to use of the Store command); the same effect is achieved by switching the key to the OFF position or removing the auxiliary power supply to the NA016 relay.

ResetInside the Reset menu the clearing of counters (Reset counters) LEDs and relays (Reset alarm) may be operated.

DEFAULT (Option)Available inside the Option menu are the confi guration parameter reset (Default) commands.Set default PARSet default REEIn case of any anomalies detected by the self-test function, where confi guration data has become corrupted, it is possible to restore the factory default settings. In particular, using the command “Set default PAR”, the calibration data is restored (thresholds, times, output relay assignment etc), whilst with the command “Set default REE” all the updated variables (counters, ...etc) and the serial com-munication parameters are automatically reset. Except for extraordinary situations, it is not necessary to use such commands which in any case allow the restoration of the factory set default values following an anomaly. Following use of this command, it is necessary to then proceed with the setting of the desired set-tings and/or the calibration of the voltages just as in the case for first installation.

Data/time setting (Time)To effect a change, (year, month,...) the modifi cation may be confi rmed by using the key. Likewise the Set menu the modifi cation in progress status is highlighted by the symbol “E” fl ashing in the upper right area of the display.

Subsequently, it is possible to alter the parameter by means of the or keys (the “E” symbol continues to fl ash to highlight the Editing status); upon reaching the desired value, it is necessary to

once more use the key. Acceptance of the change is indicated by the disappearance of the fl ashing “E” to be replaced by the symbol “!” Differently from the Set menu the changes are stored and became active immediately without the Store command.

Nota 1 I test sono attivi solo se le funzione selezionata è assegnata ad un relè fi nale

•••

•

•

•

•

•

•

•

•

•


7.3 MENU TREE

Self-test None

Self-test latch NoneSelf-test cause None

IL1 0.0000 A/InIL2 0.0000 A/InIL3 0.0000 A/InIE 0.00000 A/IEn

Reading Direct

Inp value 300Inp unit A

IEnp unit AIEnp value 100

Measures

Position UnknownTCS OffIN1 - 52b OffCircuit breaker

F - Month 7

F - Number 1F - Cause aaa

F - IL1 0.0000 InF - IL2 0.0000 InF - IL3 0.0000 InF - IE 0.00000 IEnF - Year 2009

F - Phases aaa

Last fault

Serial 35322Info

Self-test

Read

Reading Direct

Inp value 300Inp unit AIEnp value 100IEnp unit A

Base

K1 Trip I>>-Trip I>>>-Trip IE>K1 logic De-energized

K2 mode No-latched

K2 None

K2 tTR 200 msK3 None

K1 tTR 200 ms

K3 logic De-energizedK3 mode No-latched

K4 NoneK4 logic De-energized

K3 tTR 200 ms

RelaysSet

Cunter ST I> 22

Cunter TR IE>> 22

Cunter ST IE> 22Cunter ST IE>> 22Cunter TR I> 22Cunter TR I>> 22

Cunter TR IE> 22

Cunter ST I>> 22

Counters

K4 tTR 200 ms

K2 logic De-energized

g gK1 mode No-latched

p p p

F - Day 22F - Hour 9 hF - Minute 45 mF - Second 44 sF - Millisecond 567 ms

Cunter TR I>>> 22

Cunter ST I>>> 22

IN2 - 52a OffIN3 - TCS Off

pp

p

Protection trip NoneProtection trip

Code NA016-a

Firmware release 1.00Nominal freq. 50 Hz


CB Diagnostic Off74 TCS Off

IE>def 0.030 lEn

tE>RES 50 msIE>>def 0.050 lEntE>def 0.04 s

tE>def 1.00 s

tE>>RES 50 ms

50N / 51N

Circuit breaker

Clear

Store

Set

Test

Reset

g

Records stored 0Last record 0Records state Acquire

InfoOscillography

protocol RS485 ModbusAddress 1Baudrate RS485 9600Enable TX delay 2 msStart TX delay 1 ms

y

p

Test I> led >Test I>> led >Test I>>> led >Test IE> led >Test IE>> led >Test I> full >Test I>> full >Test I>>> full >Test IE> full >Test IE>> full >

Reset counters >Reset alarm >

Option Set default PARSet default REE

Test off >

Set month 7Set day 24Set hour 9 h

y

Set minute 22 mSet second 0 s

Set year 2009y

Communication

Time

I curve IEC/BS BI>inv 1.00 ln

I>>def 7.00 lnt>inv 1.00 s

t>>def 0.03 st>>RES 0 msI>>>def 7.00 lnt>>>def 0.03 st>>>RES 0 ms

50 / 51


7.4 MAINTENANCE

The devices do not require any particular maintenance; all circuits use high quality static com-ponents, the subassembly products undergo dynamic checks on their functioning before the fi nal assembling of the complete equipment. The dedicated circuits and the fi rmware for the self-test function continuously check the relay operation; the continuously operating auto-zeroing function dynamically corrects the measuring errors due to offset, heat dependent drifts, aging of components, etc.The microprocessor is equipped with a watch-dog circuit which restores the correct operation of the fi rmware in case of fault.The possibility of reading the value of the signals measured on the display (the relay used as an am-meter) allows one to check both the system parameters and the operation of the protection relays at any time. The relay can be preset as well to show the current values referred to the nominal current of the current transformers, as directly in primary amperes (according to the preset value of CT’s nominal primary current); the same is done for the input voltages.If connected to the central control unit, all data available on the display can be checked and pro-cessed thus performing a continuous check and maintenance.

7.5 REPAIR

No repair of possible faults by the client is foreseen; if following to any irregularity of operation, the above tests confi rm the presence of a fault, it will be necessary to send the relay to the factory for the repair and the consequent settings and checks.

7.6 PACKAGING

The devices must be stored within the required temperature limits; the relative humidity should not cause condensation or formation of frost.It is recommended that the devices are stored in their packaging; in the case of long storage, espe-cially in extreme climatic conditions, it is recommended that the device is supplied with power for some hours before the commissioning, in order to bring the circuits to the rating conditions and to stabilize the operation of the components.

59NA016 - Manual - 06 - 2011APPENDIX

8 A P P E N D I X8 A P P E N D I X

8.1 APPENDIX A1 - Inverse time IEC curves

Mathematical formulaThe mathematical formula, according the IEC 60255-3/BS142 standards is:[1]

Where:t = operate time (in seconds)tI>inv = setting time multiplier (in seconds)I = input currentI>inv = threshold setting

K coeffi cient:K = 0.14 for IEC-A curve (Normal inverse)K = 13.5 for IEC-B curve (Very inverse)K = 80 for IEC-C curve (Extremely inverse)

α curve shape constant:α = 0.02 for IEC-A curve (Normal inverse)α = 1 for IEC-B curve (Very inverse)α = 2 for IEC-C curve (Extremely inverse)

For all inverse time characteristics, following data applies:Asymptotic reference value (minimum pickup value): 1.1 I>invMinimum operate time: 0.1 sRange where the equation is valid:[2][3] 1.1 ≤ I /I>inv ≤ 20 If I> pickup ≥ 2.5 In, the upper limit is 50 In

Note 1 Symbols are concerning the overcurrent element. The comprehensive overview of the inverse time characteristics concerning the 50/51 and 50N/51N elements is dealt within the PROTECTIVE ELEMENTS section

Note 2 When the input value is more than 20 times the set point , the operate time is limited to the value corresponding to 20 times the set point

Nota 3 With setting more than 2.5 In for the 50/51 elements and 0.5 IEn for the 50N/51N elements, the upper limit of the measuring range is limited to 50 In and 10 IEn respectively.

••••

•••

•••

••••

t = t>inv · [(I/I>inv)α-1]

Kt = t>inv · [(I/I>inv)α-1]

K

6060 NA016 - Manual - 06 - 2011 APPENDIX

Phase overcurrent 50/51 - Standard inverse time curve (IEC 60255-3/BS142 type A)

F_51-IECA-Char.ai

1.12 3 4 5 6 7 8 9 10 20 I /I>inv0.01

0.1

1

10

100

1000

10000t [s]

t>inv = 10 s

t>inv = 60 s

t>inv = 5 s

t>inv = 1 s

t>inv = 0.5 s

t>inv = 0.2 s

t>inv = 0.1 s

t>inv = 0.02 s

t = t>inv · [(I/I>inv)0.02-1]

0.14

Note: match of operating and setting time takes place when I/I>inv = 700


Phase overcurrent 50/51 - Very inverse time curve (IEC 60255-3/BS142 type B)

F_51-IECB-Char.ai

1.12 3 4 5 6 7 8 9 10 20 I /I>inv0.01

0.1

1

10

100

1000

10000t [s]

t>inv = 10 s

t>inv = 60 s

t>inv = 5 s

t>inv = 1 s

t>inv = 0.5 s

t>inv = 0.2 s

t>inv = 0.02 s

t>inv = 0.1 s

t = t>inv · [(I/I>inv) -1]

13.5

Note: match of operating and setting time takes place when I/I>inv = 14.5


Phase overcurrent 50/51 - Extremely inverse time curve (IEC 60255-3/BS142 type C)

F_51-IECC-Char.ai

1.12 3 4 5 6 7 8 9 10 20

I /I >inv0.01

0.1

1

10

100

1000

10000

100000t [s]

t>inv = 10 s

t>inv = 60 s

t>inv = 5 s

t>inv = 1 s

t>inv = 0.5 st>inv = 0.2 st>inv = 0.02 s t>inv = 0.1 s

t = t>inv · [(I/I>inv)2-1]

80

Note: match of operating and setting time takes place when I/I>inv = 9


8.2 APPENDIX B1 - I/O Diagram

NA016-I-O.aiInput-output circuits

Traditional CT input circuits Low powerCT input circuits (LPCTs)

NA016

C1IL1

IL2

IL3

IE

CURR

ENT

INPU

TS

C2C3

C4C5

C6

C7

C8

RS23

2

FRONT PANEL

A13IN1

IN2

IN3

A14

A15

A16

A17

A18

OUTP

UT R

ELAY

S A4A6A5

K2

A2A1A3

K1

A11A12A10

K4

A9A8A7

K3

UAUXA19 ≅

A20

A22A21

B- E1

RS48

5

1

2

3

120Ω

A+

CIrcuit Breaker Monitoring

Trip CircuitSupervision (TCS)

NA016

IE

CURR

ENT

INPU

TS

C7

C8

RS23

2

FRONT PANEL

A13IN1

IN2

IN3

A14

A15

A16

A17

A18

OUTP

UT R

ELAY

S A9A8A7

K2

A5A4A6

K1

A11A12A10

K4

A3A2A1

K3

UAUXA19 ≅

A20

A22A21

B- E1

RS48

5

1

2

3

120Ω

A+



L1

L2

L3


8.3 APPENDIX B2 - Interfaces

Interfaces.ai

NA016

RS23

2

FRONT PANEL

A22A21

B- E1

RS48

5

1

2

3

120Ω

A+


8.4 APPENDIX B3 - Connection diagramsNote: Some typical connection diagram are shown. All diagram must be considered just as example; they cannot be comprehensive for real applications. For all diagrams the output contacts are shown in de-energized state for standard reference.

NA016-SCH.ai

CB position

NA016

C1IL1

IL2

IL3

P1S1S2

P2C2C3

C4C5

C6

C7

C8

A13IN1

IN2

IN3

A14

A15

A16

A17

A18

DG

50/51

IE

P1S1S2

P2

50N/51N



Three phase CTs and residual current from core balanced CT


NA016-SCH2.ai

C2

C1

C3

C4C5

C6

P1S1S2

P2

IL1

IL2

IL3

CB position

NA016

A13IN1

IN2

IN3

A14

A15

A16

A17

A18

DG

50/51

IE

P1S1S2

P2

C7

C8 50N/51N

Two phase CTs and residual current from core balanced CT




Connection diagram with Data Logger

NA016

C1IL1

IL2

IL3

IE

CURR

ENT

INPU

TS

P1S1S2

P2

P1S1S2

P2

C2C3

C4C5

C6

C7

C8

RS23

2

FRONT PANEL

A13IN1

IN2

IN3

A14

A15

A16

A17

A18

OUTP

UT R

ELAY

S A4A6A5

K2

A2A1A3

K1

A11A12A10

K4

A9A8A7

K3

UAUXA19 ≅

A20

A22A21

B- E1

RS48

5

1

2

3

120Ω

A+

DG

TRIP

52a 52b 52a 52b

-UAUX

-UAUX

+UAUX

+UAUX

+UAUX

R




8.5 APPENDIX C - Dimensions

Traditional CT inputs Low power CT inputs

Traditional CT inputs Low power CT inputs

LEDs 3, 4 and 5 enabledfor Logger versions only

75 3075 30

10717

7

102.5 ±0.3

70

161

154

SIDE VIEW CUTOUT

FRONT VIEW

ON 41 32 5

TRIP

START

REAR VIEW

IDENTIFICATION LABEL LEDs

N.4 holes ø 3.5

101

171

149

101

171

149

F1

D1

RX

TX

F2F3F4F5

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

B1B2B3B4B5B6B7B8

C1 C2

C4C3

C5 C6

C7 C8 C7 C8

E1

A1A2

A3A4A5

A6A7A8

A9A10A11

A12A13A14

A15A16

A17A18

A19A20

A21A22

E1

31

2

31

2

(100+200)300A

EX. In=

LPCT

50

200400

100

800

Setting

L3

L2

L1

1 2 3 4 5

1 2 3 4 5

1 2 3 4 5

31

2

31

2

CTs standard inputs - No LoggerCTs standard inputs - Logger


ON: Power ON and diagnostic OK

NA016#xx11




12345

NA016#xx00

In 5A 1A

50-5150N-51N

5A


12345

NA016#xx01


50-5150N-51N


12345

NA016#xx10

In 5A 1A


5A


12345


8.6 APPENDIX D - Revisions history

DSPFirmwareRelease

SWRelease

Documentation Communication Date Description

1.001.00

1.00

1.00

--

-

-

NA016-Manual-08-2009NA016-Manual-08-2010

NA016-Manual-06-2011

NA016-Manual-06-2011

ThySetter 3.5.3ThySetter 3.5.8

ThySetter 3.6.2

ThySetter 3.6.4

--

-

16-06-2012

First editionNotes LED 3, 4, 5 pag. 25, , removed RESET signal in the diagrams of functions and 50N/51N 50/51, replaced photo, improved oscillographic description (Ch. 4 and 5), updated dimensions design, added references to versions with and without loggersMore details for In settings for LPCT versions (Cap 6), typographic detailsUpdated technical data of replaced K4 relay (from signalling relay to command relay)

Headquarters: 20139 Milano - Piazza Mistral, 7 - Tel. +39 02 574 957 01 ra - Fax +39 02 574 037 63Factory: 35127 Padova - Z.I. Sud - Via dell’Artigianato, 48 - Tel. +39 049 894 770 1 ra - Fax +39 049 870 139 0

www.thytronic.it www.thytronic.com [email protected]

8.7 APPENDIX E - EC Declaration of conformity

Manufacturer: THYTRONIC S.p.A.

Address: Piazza Mistral 7 - 20139 MILANO

The undersigned manufacturer herewith declares that the product

Protection relay - type NA016

is in conformity with the previsions of the following EC directives (including all applicable amendments) when installed in accordance with the installation instructions:

Reference n° title

2006/95/EC2004/108/EC

Low Voltage DirectiveEMC Directive

Reference of standards and/or technical specifi cations applied for this declaration of conformity or parts thereof:

- harmonized standards:

nr issue title

EN 61010-1

EN 50263

EN 61000-6-4 (EN 50081-2)

EN 61000-6-2 (EN 50082-2)

11.2001

08.2000

11.2007

12.2005

Safety requirements for electrical equipment for measurement, control and laboratory use

Electromagnetic compatibility (EMC)Product standard for measuring relays and protection equipments

Electromagnetic compatibility (EMC)Emission standard for industrial environments

Electromagnetic compatibility (EMC)Immunity standard for industrial environments

- other standards and/or technical specifi cations:

nr issue title

CEI 0-16

EN 61810-1

EN 60255-6 (CEI 95-1)

IEC 60255

07.2008

02.2004

05.1998

Regola tecnica di riferimento per la connessione di Utenti attivi e passivi alle reti AT e MT delle imprese distributrici di energia elettrica

Electromechanical elementary relaysGeneral and safety requirements

Electrical relays - Part 6: General requirements for measuring relays and protection equipment

Electrical relays

Year of CE marking: 2009

Signature ............................................. Name FIORE Ing. GIOACCHINO Title Managing director Date 07-2009

Documents

MANUAL - BAHA ENERJi Thytronic/NA016 Thytronic... · na016 - manual - 06 - 2011 manual na016 phase & residual overcurrent protection relay. 2 na016 - manual - 06 - 2011 table of contents