Product Range 2013 GB V101

Product Range 2013

Portable Reference Meters & Test Systems

Current & Power Sources

Stationary Meter Test Systems

Control and Visualization Software

Automatic and Semi-automatic Testing

Instrument Transformer Test Systems

CT/PT Test Components

Constant Current Source

Precision Power Calibration Systems

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Product-range-2013_GB_V101Status: 28th January 2013Subjects to alteration.

Copyright 2013 ZERA GmbH

ZERA GmbHHauptstrae 39253639 KnigswinterGermanyPhone.: +49 (0) 2223 704-0Fax: +49 (0) 2223 704-70E-mail: [email protected]

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Table of Contents

Portable Meter Testing | Moving Test ..................................................................5

Reference Meter and Primary Standard ..............................................................6

COM3003 ........................................................................................................6

MT3000 Reference Meter ..............................................................................7

MT365 .............................................................................................................8

MT310 .............................................................................................................8

MT30 ...............................................................................................................8

Test Systems .........................................................................................................9

MT3000 Test System ......................................................................................9

MT781 ............................................................................................................10

MT681 ...........................................................................................................10

MT680s ......................................................................................................... 11

MT3606 ........................................................................................................ 11

Voltage and Current Sources .............................................................................. 12

MT3000 Source ............................................................................................ 12

MT551 ............................................................................................................ 12

MT500/MT400 ............................................................................................. 12

Accessories for Portable Meter Testing ............................................................. 13

Stationary Meter Test Systems | MTS ................................................................ 15

Power Source Systems - MTS series ..................................................................16

Components, Power Source System | MTS ....................................................... 17

Frequency Generator .................................................................................... 17

Reference Meters ......................................................................................... 17

Ampli ers ......................................................................................................18

Components, Test Bench | MTS .........................................................................19

Scanning Heads ............................................................................................ 21

Transformers .................................................................................................22

MTS Additional Components ........................................................................23

Scanning Head Suspension ..........................................................................25

Quick Connecting Devices............................................................................26

Di erent Types of Test Benches ...................................................................27

Software for Controlling, Visualization and Simulation ...................................29

Automatic and Semi-automatic Test Systems for Meter Manufactures ...........33

ITTS Stationary and Mobile Instrument Transformer Test Systems ..............35

Stationary Instrument Transformer Test Systems | ITTS ..................................36

Mobile Instrument Transformer Test Systems | ITTS Mobile ............................37

CT/PT Testing Components | ITTS ......................................................................39

Constant Current Sources .................................................................................41

Precision Power Calibration System ..................................................................43

Further information to the products and product-lines presented in this catalogue can be found in the appropriate lea et.Visit our website: www.zera.de.

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Portable Meter Testing | Moving TestPortable meter test systems of ZERA covers reference meters, primary standards, test systems as well as current and power sources. All measurements can be performed according to IEC standard.Reference meters with accuracy classes 0.2 to 0.02 are commonly used for testing of meter ins-tallations and for observing error limits of electricity meters on-site. The primary standard with accuracy class 0.01 is used for very accurate testing of meters and reference meters. Test systems are reference meters with integrated source. You can choose between systems withcurrent source or current and voltage source. Test systems are especially useful if you need user-de ned values for current and voltage while testing meter installation with only one device.

Test system with integrated source

Primary standard, comparator COM3003

Reference meter

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Voltage and current sources

COM3003 Comparator Accuracy class 0.01 AC/DC reference standard Primary standard, e.g. for metrological institutes and calibration laboratories.

Functions amongst others:

- Actual values

- Vectorial display

- Curve display

- Harmonic measurement

- Error measurement

- Reference measurement

Static and electromechanical power meters respectively instruments with power proportional frequency output can be tested in the menu Error measurement. The user can select between scanning head input or frequency input.

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Accuracy class 0.01 Accuracy class 0.02 and 0.05

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MT3000 Reference Meter Accuracy classes 0.02 and 0.05 Coloured display Modular design System upgrade at any time Unique long-term and temperature stability of the measuring module Current measurement via AC-current clamps up to 300 A No additional error for reactive measurement Ratio test on PTs and CTs by simultaneous measurement of both primary and secondary values in CT connected metering systems Testing of voltage, current and power transducers Functions amongst others:


- Error measurement

- Burden measurement

- U/I transformer test

- tm/te transmitter test

- Long-time measurement

- Selective power measurement

- Data readout meter

- Automatic operation (as option)

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Single modules can be combined

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MT30 Accuracy class 0.2 Functions amongst others:

- Actual values

- Error measurement

- Vector and curve display


Also available as single-phase device MT10

MT310

Accuracy class 0.1 Functions amongst others:

- Actual values


- Error measurement



- I transformer testing (as option)

Also available with accuracy class 0.05 as MT320

Also available as CAT IV device MT310-01

MT365 Accuracy class 0.05 Coloured display Functions amongst others:



- Error measurement

- Service function

- Automatic operation (as option)


MT3000 Test System Accuracy classes 0.02 and 0.05 Coloured display Reference meter with integrated current and voltage source Current generation from 4 mA up to 12 A (optional with booster up to 120 A, see below) Voltage generation from 40 V up to 300 V Modular design System upgrade at any time Unique long-term and temperature stability of the measuring module No additional error for reactive measurement Functions amongst others:



- U/I transformer testing

- tm/te transmitter test


- Long-time measurement

- Automatic operation

With MT3000 current booster current generation up to 120 A

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Accuracy class 0.02 and 0.05

Single- or three-phase

Accuracy class 0.1 or 0.05

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MT681 Accuracy class 0.1 Coloured display Three-phase fully automatic test system with integrated current source Current generation from 10 mA up to 100 A Veri cation of the load conditions on metering installations Functions amongst others:

- Vector display


- Error measurement

- Automatic measurement


(as option)

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MT781 Accuracy class 0.1 Coloured display Three-phase fully automatic test system with integrated current source Current generation from 10 mA up to 100 A Voltage generation from 40 V up to 500 V Veri cation of the load conditions on metering installations Functions amongst others:

- Vector display


- Error measurement

- Automatic measurement


(as option)


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MT3606 Accuracy class 0.1 Coloured display Single-phase test system with integrated current and voltage source Testing of energy meters for accuracy classes 1 and 2 in 2-wire circuits Current generation from 10 mA up to 60 A Voltage generation from 40 V up to 300 V Functions amongst others:

- Error measurement

- Vectorial display

- Free programmable load point settings

for voltage and current generation



(as option)

MT680s Accuracy class 0.1 Coloured display with touch screen Single-phase test system with integrated current source Testing of energy meters for accuracy classes 1 and 2 in 2-wire circuits Current generation from 10 mA up to 120 A Functions amongst others:

- Error measurement

- Vectorial display

- Free programmable load point settings

for current generation



(as option)

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Integrated current and voltage source

With trolley available - see page 14

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MT680s compared with single-phase meter

Single-phase with integrated source

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MT500/MT400 Three-phase voltage* and current source Current generation from 4 mA up to 12 A Voltage generation* from 40 V up to 300 V Adjustable power factors Individual load point setting Synchronization of the test currents on the existing test voltage phases of the meter under test (only MT400) Functions amongst others:

- Actual values

- Vectorial display

* only available for MT500

MT3000 Source Three-phase voltage and current source Current generation from 4 mA up to 12 A Voltage generation from 40 V up to 300 V Coloured display Can be combined with MT3000 Reference Meter Energy dosage Programmable phase shift, frequency and balance and unbalance load

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MT551 Three-phase power source Current generation up to 120 A Voltage generation up to 500 V 10,4 touch screen Individual load point programming in four quadrants Automatic control via MT3000 or MT365 possible Energy dosage Available interfaces:

- RS232, Bluetooth and USB

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AC Current Clamps

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MT3430/MT3422 Current measurement up to 120 A High accuracy in the range of 50 mA ... 120 A Suitable especially for burden measurement MT3430 for MT30, MT3x0, MT36x, MT681 and MT78x MT3422 for MT3000 Also available as single-phase clamp MT3431 for MT10 or MT680s

MT3416/MT3417 Current measurement up to 300 A Suitable for cable diametres up to 53 mm MT3416 for MT30, MT3x0, MT36x, MT681 and MT78x MT3417 for MT3000

Temperature Sensor MT3450 for temperature registration on-site Useable for all portable devices of the MT series Temperature indication on MT display

Quick Connection Cables For voltage and/or current connections For all three-phase devices of the MT series For safe connection between device and meter under test Various designs and phase colours

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Stationary Meter Test Systems | MTSStationary meter test systems are suitable for economic testing of all types of meters as well as static meter of class 0.2. The wide range reference standard EPZ is used as working standard class 0.02 of the meter test system. If a higher accuracy is required the EPZ can be replaced by a comparator COM with accuracy class 0.01. All measurements can be performed according to actual standards e.g. IEC. The modular system allows an individual and customized con guration for hard- and software.A system upgrade is possible at any time.

Power source system for generat-ing the test values, e. g. MTS320Comfortable, ne adjustable

scanning head suspension

DS3xx devicesand additional components

19 bottom sectionfor slide-in units e. g. SES330, CCM1001, DS421 or PC in industrialhousing

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Transport Cases and Bags Aluminum cases for MT devices and accessories; all sizes Nylon bag for accessories with smooth- rolling wheels and telescopic handle

Trolley Systems Trolley transportation systems for MT681 or MT78x with pneumatic tires or as standard system 3-stages extendable pull-out handle Via snap-lock system the device case can be securely xed and easily released

Scanning head TK118-05 Detection of LED signals of electronic meters Fixing via provided suction cup or via optionally available stretchable holding device for scanning heads TK326/TK118

Thermo Printer Set Printing of measuring results on site Connection via RS232 interface Set contains of Software option Print, thermo printer, AC adapter, interface cable, battery pack and thermal paper

Many more useful accessories as* Carrying strap for MT10, MT30, MT3x0 Protection cover for MT3xx/400/500 Start-stop push button for signal entry Several software options depending on the device as I-transformer testing, selective power measurement etc.

* for further information see MT product catalogues

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180 mm

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TK118-05 with holding device 1

1 Example of use. Meter not in scope of delivery.

Standard system

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Power Source Systems - MTS series

Power Source Systems - MTS seriesThe product series MTS is based on digital switch mode ampli er modules and allows the com-bination of the di erent ampli ers with the function generator FG301 to a MTS-power source system.ZERA provides three-phase sources MTS301, MTS310, MTS320 and MTS340 (for 1 up to 40 test positions) and single-phase sources MTS110 and MTS140. All source systems of the MTS3xx and MTS1xx series are also available with castor wheels.

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Reference Meters

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FG301 Frequency generator FG301 as central unit of the synthetic waveform generation Generates the set points for the digital control of the power ampli er units Carries out the closed-loop control of the test settings and controls changeover operations during the test procedure.

COM3003 Optional the reference standard EPZ303/ EPZ103 can be replaced by a comparator COM3003/1003 Accuracy class 0.01

EPZ303 Wide range substandard meters EPZ303 and EPZ103 as working standard of meter test systems Serves for power proportional pulse frequency Designed to measure actual values for test voltage, test current, test power and phase angle per phase Test values are indicated on an external monitor Accuracy class 0.02

Frequency Generator

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MTS340 MTS320 MTS140

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Accuracy class 0.02

Accuracy class 0.01

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VI201/VI202 Test current ampli er VI201/VI202 for AC output currents up to 160 A (optionally 120 A) Max. output power: 2000 VA (optionally 2800 VA)

Ampli ers

VI221 Test current ampli er VI221 for AC output currents up to 120 A Max. output power: 600 VA

VUI302 Combined single-phase current and voltage ampli er VUI302 for output voltages up to 320 V (AC) and output currents up to 120 A (DC up to 12 A). Max. output power voltage unit: 30 VA Max. output power current unit: 200 VA Used in MTS301 (single-position system)

VU211 Test voltage ampli er VU211 for AC output voltages up to 480 V Max. output power: 1000 VA (optionally 1500 VA)

VU221 Single- or three-phase test voltage ampli- er VU221 for output voltages up to 320 V (AC and DC) Max. output power: 500 VA

Other customer requirement on request.

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MTS-Components

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SES330 Measurement interface SES330 serves as a power supply for the DS3xx modules as well as for conversion of the RS232 interface in the PC to the system bus Control is accomplished by the FG301 Only required if DS3xx modules are used

The following DS3xx error calculators are used per test position:

DS301 Additional displaying of the measured error In-/output for testing of S0-pulse transmitter or receiver tm/te maximum demand time measuring Testing of S0-pulse transmitter or receiver and bi-directional data transfer

DS312 Can be used additionally to DS301, DS321 In-/outputs for testing of S0-pulse transmitter or receiver Interface multiplexer for communication with the unit under test via RS232 (IR), RS485 or M-bus

DS321 Can be used additionally to DS312 In-/outputs for testing of S0-pulse transmitter or receiver

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MTS Components

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DSA400 LCD display unit DSA400 displays the error values during the test procedure Can be combined with DS421

DS421 Multi-user error calculator DS421 is designed as slide-in unit Used for testing up to 20 energy meters Can only be combined with DSA400/DSA401

CCM1001 Measuring and connecting adapter CCM1001 to inspect the test circuits for U-I-shorts before and during the test procedure Communication is performed via WinSAM

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DSA401 LED display unit DSA401 displays the error values during the test procedure Can be combined with DS421

Scanning Heads

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The following scanning heads are used per test position:

TK325 Scanning head TK325 to scan rotor marks and LEDs of electronic meters The TK325 can detect the switching edge of a pulse and allows the automatic starting- and no load test on ZERA test systems Is used for advanced scanning head suspension Can be combined with all DS devices

TK117 Scanning head TK117 serves for data communication between the unit under test and the test system. Connection e. g. with error calculator DS301 Can only be used with electronic meters Can only be used in combination with DS301 and DS311.

TK326 Scanning head TK326 is able to scan rotor marks and LEDs of electronic meters The TK326 can detect the switching edge of a pulse and allows the automatic starting- and no load test on ZERA test systems Is used for simple scanning head suspension Can be combined with all DS devices Also useable with portable reference meters of MT series (see page 6 )

* Example of use. Meter not in scope of delivery.

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Transformers

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ICT123/ICT126 Three-phase error-compensated isolated current transformer ICT123/126 to supply galvanic isolated test current to meters with closed link New compact design allows you to choose between stand-alone device or installation in a system Integrated self-protection Communication via WinSAM One ICT serves for one test position Ratio 1:1 Max. current range 120 A (ICT123) Max. current range 160 A (ICT126)

MSVT Multi secondary voltage transformer MSVT to supply galvanic isolated test voltage to single-phase meters The MSVT serves optionally for 10 or 20 test positions

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HK301 Auxiliary circuit module HK301 for switching auxiliary circuits in meter testing units Can only be used in combination with power source MTS301

K118 Adapter K118 to convert AC potential linked contacts to the required DC voltage level for the S0-Input of the DS301 or DS311

Test Point Buttons Buttons to control the automatic test procedure during adjustment of meters Load points can be controlled by pressing the button (previous/next test point)

MTS Additional Components

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Automatic Rotor Mark Positioning AMV Built-in module AMV301 for automatic rotor mark positioning of Ferraris meters Bene cial before STARTING or NO LOAD test This module is also available as pluggable unit Built-in and pluggable modules can only be used with DS301

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ICT125 Three-phase error-compensated isolated current transformer ICT125 to supply galvanic isolated test current to meters with closed link Ratio 1:2 Max. input current 160 A Max. output current 320 A

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MTS Additional Components

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DR2791 External eld coil DR2791 to generate a magnetic eld in combination with the voltage ampli er VU221-02 Testing, if the magnetic eld disturbs the measurement of the meter If required also available with one position meter rack/quick connecting device

ZZ8292 Half-wave recti cation ZZ8292 for separating the test current in positive and negative half-waves Available as stand-alone device or integrated into a system

ET117 Handheld terminal ET117 is used for en-

try and transfer of meter speci c data, e. g. serial no., owner no. or counter states to the WinSAM-Software

Scanning of 2D codes, e. g. at highly complex DataMatrix meters

Data transfer to PC via Bluetooth

ET116 Handheld scanner ET116 as addition unit

for existing handheld terminal ET115 Scanning of 2D codes, e. g. at highly

complex DataMatrix meters Data transfer to PC via docking station

ET115 Handheld terminal ET115 for entering

speci c data of the meters under test and for sending data via docking station to the user control PC.

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Scanning Head Suspension

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Scanning Head Suspension Advanced System Comfortable ball bearing suspension for scanning heads, adjustable in all positions Stoppers for safe guidance of the scanning head Quick height adjustment and ne adjustment for correctly positioning of the scanning head in front of the meter With single-position or multiple-position suspension Expansion possibilities of the measuring system are possible at any time Useable with scanning head TK325

Basic Scanning Head Suspension Functional scanning head suspension, adjustable in all positions via ap me- chanismus Expansion possibilities of this kind of system are limited Useable with scanning head TK326

Scanning Head Suspension with move-able meter rack Moveable in all positions, e. g. for performing a type testing Quick and safe positioning of the meter under test Available for single- or multiple-position test systems Useable with scanning head TK325.

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Available with one position meter rack

Integration into test bench possible

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Quick Connecting Devices

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Di erent Types of Test Benches

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Multiple Position Test BenchTest bench with:

10 test positions

19 bottom section Scanning head suspension basic system

Standard test benches with 5, 10, 20 or 40 test positions Further designs available on request

Minimize preparation and connection time for meter testing Avoid incorrect meter connections which can lead to destruction of the meter under test or the measuring system. Continuous currents up to 120 A Connect all auxiliary circuits, test voltage and test current via one adapter Special adapters for di erent meter types

Adapters for 60 A/80 A meters High current meters (100 A/120 A) Sym meters Socket type meters (ANSI) CT operated meters eHz meters Single- or three-phase meters Further designs available on request

Special DesignsExample:

Test bench with 28 test position for

single-phase meter testing of

14 meters simultaneously Pneumatically operated protective cover with integrated scanning heads for safe placement of meters while

performing a test procedure. MSVT

Further designs available on request

Single-position Test BenchTest bench with:

One test position

DS3xx modules Scanning head suspension advanced system

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Software for Controlling, Visualization and SimulationZERA provides a series of software for simplifying the control of test sequences, visualization and management of measured data or simulating circuit errors.

Our main focus of controlling stationary Meter Test Systems is on WinSAM with version 5 Win-dows optimized. Data management between portable devices and a PC as well as visualization of data can be realized by MTVis. If you want to control portable devices via PC your prefered choice would be SSM3000. With CheckCon 3 you can control transformer testing system. In ad-dition to data management of CT/PT under test and evaluation of test results a big range of indi-vidual adjustable features is o ered in this software package.

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WinSAM 5 | Control software for stationary systems

MTVis | Visualization and data management software for portable devices

SSM3000| Control software for portable devices

CheckCon 3 | Control softwarefor transformer testing

MCS | Simulation softwarefor circuit errors

Di erent Types of Test Benches

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Tunnel and Trolley System A stationary tunnel system is connected to the power source The respective trolley system is connected to the test bench via plug connection Interlock mechanism for xing the trolley at the tunnel system The test bench is equipped with scanning head suspensions and emergency-stop- push-buttons

Trolley System Trolley system with 20 test positions Flexible placement of the meters under test by the use of a second trolley system which safes tooling-time Trolley system is equipped with a quick- connecting device for meters

Side Cabinet Side cabinet e. g. for measuring and connecting adapter CCM1001, calibration panel for absolute testing, MSVT and error calculator DS421 or measurement interface DS421.

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Safe guidance at the oor

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Software MTVis Data management software for data communication between device of the MT- series/COM3003 and a PC Visualization of stored measurement data Management of customer and meter data Import and export of Excel or XML- les

SSM3000 Software for controlling devices of the serie MT, COM, RMM and EPZ Automatic device identi cation via integrated data base Manual and automatic test procedures Recorder function for long time measurement Storage of all test result into Access data base Export of results to Excel

MCS | Meter Check Simulation Software for simulating circuit errors for training purposes Simulation of polarisation, exchange of voltage and current phases, bypass or wrong rotary eld

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Software WinSAM 5 Software for controlling Meter Test Systems Con guration of test device and system environment Compilation of individual test sequences and data logs Integrated generator to create de ned test sequences e. g. according to MID/PTB standards. Error detection and indication for each meter place and phase via burden measurement Breaker test for testing of meters e.g. Smart Meters in every current phase

CheckCon 3 Software for controllling Instrument Transformer Test Systems Data management of CT/PT under test, test tables and test results will be done by integrated MS Access runtime module Manual or automatic control of test procedure depending on the hardware

Important features in the quick access toolbar

Easy generation of test sequences

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Semi-automatic Test Systems Semi-automatic function test Manual load and unload of the units under test, automatic testing procedure. Drawers for two-way load No time-o for changing the units under test. While one lot of 6 meters is under test the other lot can be exchanged.

Automatic Test Systems Automatic function test ZERA test systems can be integrated in customer production lines completely. Meters can be transported to the next test procedure via band conveyer.

Test procedure Veri cation of power line communication (PLC)

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ITTS Stationary and Mobile Instrument Transformer Test SystemsStationary and Mobile Instrument Transformer Test Systems from ZERA are developed for testing current transformers (CT) and voltage transformers (PT). Stationary test systems are available for manual or automatic operation.

Transformer testing serves for the accuracy test including polarity check and demagnetisation for current and voltage transformers in middle-voltage, high-voltage and extra-voltage grids accord-ing to IEC standard 60044-1, 60044-2, 60044-7, 60044-8 and 61850-9-2.

Standard/High voltage transformer SVT/HVT

Mobile current transformer test system

Voltage regulating transformer VRT for generating the required voltage

Stationary, automatic current and voltage transformer test system

Standard current module SCM

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VRT36

GCT6000 SCT6000

Detail of the CT under test connected at the secondary side.

HVT130

SVT100

Stationary ITTS Measuring of voltage/current transformers (low-, middle- and high-voltage) Accuracy test, polarity check, interturn insulation test and demagnetisation. CT one-by-one testing

Example for low and middle voltage instru-ment transformer CT/PT testing*: Mains voltage: 3 x 230 V/400 V, (50) 60 Hz Output voltage: 0 ... 400 V Output power: max. 30 kVA

Suitable for the following CTs:

- IN = 5 ... 6000 A

- Max. IPrim = 120 % of IN- Secondary current: 5 A

- Max. burden of CT under test: 200 VA Suitable for the following PTs:

- UN = 120 V ... 100 kV

- Max. UPrim = 120 % of UN- Secondary voltages: 120 V, 115 V, 69 V

- Max. burden of PT under test: 200 VA

Used components amongst others:

- Regulating transformer (variac)

- ESVB200/WM3000U

- ESCB200/WM3000I

- Generating current transformer

GCT6000

- Standard current transformer

SCT6000

- High voltage generating transformer

HVT130

- Standard voltage transformer e. g.

SVT100

* other customer requirements on request

ITTS Mobile Testing of current and voltage transformers in middle-voltage, high-voltage and extra-high voltage grids Accuracy test, polarity check and demagnetisation Example voltage transformer:

- UN = 110/3 kV

- Max. UPrim = 120 % of UN- Secondary voltages

100/3 V, 110/3 V, 100 V, 110 V

- Max. burden of the voltage transfor-

mer under test 158,75 VA Example current transformer:

- IN = 4000 A

- Max. IPrim = 120 % of IN- Secondary currents: 5 A and 1 A

- Max. burden of the current transfor-

mer under test 60 VA Used components amongst others:

- Voltage Regulating Transformer VRT- SCM4000-120 (see page 39)- WM3000I - ESCB200 (see page 39)

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VRT Voltage Regulating Transformer VRT for supply of the high voltage or high current transformer with variable voltage for testing of CTs/PTs

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Voltage unit Current unit

VRT unit

ITTS Mobile Testing of current transformers in middle-voltage, high-voltage and extra- high voltage grids Accuracy test, polarity check and demagnetisation Example current transformer:

- IN = 5 A up to 300 A

- Max. IPrim = 120 % of IN- Secondary currents: 5 A and 1 A

- Max. burden of the current transfor-

mer under test 30 VA Used components amongst others:

- Voltage regulating transformer VRT- Standard current transformer SCT- Generating current transformer GCT- Measuring equipment ME

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VRTm2-40-40 Voltage regulating transformer VRT to transform a xed input voltage (400 V) to a variable output voltage (0 400 V) The VRT feeds the high current unit GCT as well as the transformer under test A control panel with all operating elements for the manual operation is placed on top of the VRT

MEm30 The mobile measuring equipment MEm30 is equipped with

- Standard current burden SCB30

- Measuring bridge WM3000I

- Mobile PC

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CT/PT Testing ComponentsConventional Burden | SCB/SVB Standard current/voltage burden for measuring current/voltage instrument transformers according to IEC 60044-1/2 Standard Current Burden SCB with adjustable steps up to 60 VA (IEC) or 200 VA (ANSI) Standard Voltage Burden SVB with adjustable steps up to 318,75 VA (IEC) or 400 VA (ANSI)

Electronical Burden | ESCB/ESVB Electronical compensated current or voltage burden ESCB/ESVB for manual and automatic test of current/voltage instrument transformers. User-friendly menu guidance 10,4" TFT-mono chrome display ESVB/ESCB with adjustable steps up to 200 VA (IEC and ANSI)

Standard Current Module | SCM Standard current module SCM consisting of generating current transformer GCT

and standard current transformer SCT Cost-e ective and space-saving combination of GCT and SCT Less wiring due to xed wiring inside Time-saving due to one-o connection of GCT and SCT Example SCM3000-120*:

- Max. current 3840 A

- Max. output power 16 kVA


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Detail of CT testing

CT

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High Voltage Transformer | HVT High voltage transformer HVT for generating the test voltage for accuracy testing of voltage transformers.

CT/PT Testing ComponentsGenerating Current Transformer | GCT The GCT for generating the test current for

accuracy testing of current transformers Example GCT6000*:


- Max. test current 6000 A

Standard Current Transformer | SCT The values of the CT under test will be compared with the values of the standard current transformer SCT. Example SCT6000*:

- INsec 5 A

- Load range 1 ... 120 %

- Max. current 7200 A

Standard Voltage Transformer | SVT Standard voltage transformer SVT for testing voltage transformer with single and double-pole connections.

Measuring Bridge | WM The current/voltage measuring bridges WM3000I/U are high-precision comparator units for comparing secondary signal from transformer under test (or digital information of non-conventional transformers) with a reference signal supplied by a standard device. Display of measuring values and control of the test procedure via touch screen.


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Constant Current Sources MCCB testing Thermal and magnetic tripping test Line circuit breaker, motor circuit breaker Example for a constant current source:

- Single-phase


- Max. test current 200 VA

- Current steps/output voltages:

200 A/55 V, 100 A/55 V, 50 A/55 V,

25 A/ 55 V, 5 A/55 V, 2,5 A/55 V

Constant Current Sources Constant current sources are typically used in testing and adjusting equipment The source provides a de ned test current for the equipment The concrete value is speci ed by the needs of the unit under test and is the basis for the whole project planning

Control unit SES The communication between electronical source and equipment runs via the control unit SES In addition to the RS232 interface opti- cally isolated in- and outputs for an SPC are provided The concrete test parameters are entered at the PC or at the SPS.

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PPCS Software Windows based software (precision power sampling system) to control the system Software controls the device under calibration and calculates error values and measurement uncertainty Result will be stored in the PC

PPCS Precision Power Calibration System high precision, traceable calibration of measuring devices (e.g. comparator) Lowest measuring uncertainty from < 10 x 10-6 (at 40 up to 60 Hz, relative to the nominal value of the apparent power) Output voltage from 60 V up to 480 V Output current from 0,1 A up to 100 A Used for highly accurate current, voltage and power calibration High measuring stability due to ZERA components that have been proven for many years High repeat accuracy of the measuring values Wide range of Harmonic generation and accurate measurement

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Documents

Product Range 2013 GB V101