Moeller GmbH BU Circuit Breaker Protective note to rule DIN ISO 16016 is to be considered The new line of circuit breaker IZM ILS-P / W. Wagner Aug 03,

Moeller GmbHBU Circuit Breaker

The new line of circuit breaker IZM

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IZM Communication Architecture



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Part 1: The communicative hardware system

Part 2: Supplement to the communicative hardware

Part 3: IZM communication via PROFIBUS DP

Part 4: Further information about the additional modules

Part 5: Further inf. about the measurement modules




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• Communication interfaces on the IZM circuit-breaker

• Modes of the IZM parameter assignment module

IZM-XEM-PG(E) with integrated web server



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Circuit-breaker internal system bus

XCOM-DP

Trip unit

Parameterization and visualisation tool via

PROFIBUS DP

Parameter assignment module with integral web server

IZM-XEM-PGIZM-XEM-PGE

Data acquisition and processing

Output devicee.g. Notebook with Browser

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XMP(H)


Overview of the IZM communication architecture



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Structure of the internal system bus with communicative devices



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Parameter assignment module

with integrated web server System software

One unit for parameter setting, for operation and for visualization of Moeller

circuit-breakers IZM based on “html” technology

PROFIBUS software, which offers the same option

via the PROFIBUS-DP(Moeller Software planed for 2004)


Communication: Local, Ethernet, Internet or PROFIBUS



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Necessary modules for communication via PROFIBUS DP:

XCOM-DP Profibus Module(external)

BSS Breaker Status Sensor(internal)


IZM communication via PROFIBUS DP



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Parameterization, operation, observation and diagnostics of IZM circuit breaker

IZM-XEM-PG(E) provides its data in “html” format (Masks and data are transmitted together)

No add. software installation is necessary (Java 2 VM is a premise, e.g. with Internet Explorer)

Data representation in a tree-structure enables fast access to the requested information

IZM-XEM-PGE offers an additional Ethernet gateway

Remote control of the IZM circuit-breaker with long-distance data transmission


IZM parameter assignment module IZM-XEM-PG (E)with integrated web server



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IZM-XEM-PG in Offline Mode (no connection to an IZM trip unit)

Parameter data can be created and saved on the PC

Opening, modification and saving of parameter files which already exist

One IZM-XEM-PG for every MoellerIZM circuit breaker in the power distribution system

Application examples:

Preperation of the commissioning in the office; e.g. paramerterization

No expert know-how required in the system



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Communication via RS485 (IZM), RS232 (to the Notebook)

Parameterization, control and diagnostics of the IZM with its communicative modules

Parameter settings can be saved and printed as documentation

One IZM-XEM-PG for all IZM in a power distribution system

Applications examples:

“On-site” parameterization and diagnostics

Fault analysis via event history

Moeller IZM

Circuit-breaker internalsystem bus


IZM-XEM-PG in Temporary Mode - Local



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IZM-XEM-PGE is permanently connected to a Moeller IZM trip unit

One IZM-XEM-PGE per circuit-breaker

Remote access to the Moeller IZM circuit-breaker via Ethernet

Application example:

Communication without PROFIBUS DP

For a small number of circuit-breakers in industry or buildings

For “Offshore” applications

Moeller IZM

Circuit-breaker internalsystem bus


IZM-XEM-PGE in fixed mounted mode with Ethernet communication



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• Circuit-breaker internal system bus

• Overview electronic overcurrent releases

• “Power” and “Harmonic” measurement functions

• Intelligent, external expansion modules




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Circuit-breaker internal system bus

XCOM-DP

Trip unit

Parameterization and visualisation tool via

PROFIBUS DP

Parameter assignment module with integral web server

IZM-XEM-PGIZM-XEM-PGE

Data acquisition and processing

Output devicee.g. Notebook with Browser

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Overview of the IZM communication architecture



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The way of the internal system bus




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The circuit breaker internal system bus connects all intelligent modules within the IZM circuit-breaker with each other. In addition it enables the connection of external additional modules to the circuit-breaker.

Intelligent, internal modules:

• “U”, “R”, “D” electronic trip

units • “Power“ and “Harmonic”

measurement functions• BSS Breaker Status Sensor

External additional modules:

• XCOM-DP PROFIBUS module• Digital input + output modules• Analog output module• ZSI - module• Parameter assignment module

IZM-XEM-PG (E)


Cicruit-breaker internal system bus



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Maximum assignment on the internal system bus:

Module Number Remark

Analog output module 2 varying coding positions

Digital output module with rotary coding switch 2 varying coding positions

Digital output module, configurable 1

Digital input module 2 varying coding positions

ZSI - module 1

Maximum length of the internal system bus: 10 m

1x 24 V DC supply voltage, termination resistor on last additional module


Circuit-breaker internal system bus: System conditions



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• integrated into the trip unit types U, R, D of the IZM without extra charge

• high levels of system availability and minimum installation effort via safe and simple connection of the modules with RJ 45 jacks

• fast reaction times of the entire system

• retrofitting of all modules possible in a record time

• considerable additional usage and potential for savings by use of the external additional modules, which enables interfacing of further peripheral devices to the IZM


Advantages of the circuit-breaker internal system bus



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XZMD

XZMR

L-I L-S-I (-N-G)L-S-I-N-GL-S-I L-S-I (-N-G) L-S-I (-N-G)

XZMV

XZMA XZMV XZMV+XT XZMU (+XT) XZMR (+XT) XZMD (+XT)

Earth fault protection ‚XT‘ is optional and for type ‚U‘, ‚R‘ and ‚D‘ even modular for retrofitting.

XZMV XZMUXZMA


Type overview of the electronic overcurrent releases



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XZMA Release for power distribution system protection

XZMV Release for selective (discriminative) protection

XZMU Release for universal protection

XZMR Digital release, for external parameterization only

XZMD Digital release

Circuit breaker with trip units type ‘U’, ‘R’ and ‘D’ are already equipped with the internal system bus

Type overview of the electronic overcurrent releases




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IZM trip units:

L Inverse time-delay overLoad range A, V, V+XT, U, R, D

S Short-time delay short-circuit tripping V, V+XT, U, R, D

I Instantaneous short-circuit tripping A, V, V+XT, U, R, D

N Neutral conductor overload tripping V+XT, U, R, D

G Earth fault tripping (Ground fault) V+XT, U+XT(A), R+XT(A), D+XT(A)+XT = earth-fault release

additional equipment


Trip units: The different protective ranges



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“Power” “Harmonic”

• Currents

• Voltages

• Powers

• Cos phi

• Energy values

• Frequency

• Total harmonic distortion, form factor, peak factor

As with “Power”, with additional

• Frequency analysis up to 29th harmonic

• Recording of currents and voltages in waveform memory (two ring buffers enable graphic evaluation of current and voltage waveshape)

The measurement module is installedin the IZM on therear side of the trip unit


“Power” and “Harmonic” Measurement Functions



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• High level of measurement accuracy of 1% for current and voltage

• Communication interfaced via the XCOM-DP and circuit-breaker Parameter assignment module

• Space-saving internal installation in the circuit-breaker

• Signalling of events in the network offer extended protective functions and a higher level of power distribution system protection

• Good alternative for external measurement devices (reduced installation effort and space requirement)

Advantages of the measurement modules


“Power” and “Harmonic” Measurement Functions



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Application possibilities

Offers connection features for max. 6 additional potential free binary signals, 24 VDC

Enables the transfer of additional binary information via the PROFIBUS DP to the field bus level e.g.:

State of the control panel door

State of the MCCB‘s

State of the switch-disconnector

Overtemperature in the control panel

State of the control panel forced ventilation

Digital input module




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G

T-2 T-3 Application example:

For use in conjunction with the “R” or “D”trip unit for switchover of the parameter sets (A and B) saved in the trip unit.

Simple and fast switchover between the regenerative and mains operation possible

When used for parameter switchover, all further inputs of the module cannot be used





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Relay outputs

Control of electromagnetic devices

Rotary coding switch

Configurable

Optocoupler outputs

Transfer of commands and messages for electronic devices

Rotary coding switch

Configurable

Variants of the digital output modules




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6 digital outputs available for differentiated trip causes signalling, warnings, threshold value overshoots to external signalling devices (e.g. lamps, horns)

Event controlled operation (switch on / off) of non-Profibus capable power distribution lements,e.g. fans, motors, heating or pumps (which have a different supply and protection).

Digital output module with rotary coding switch


Application possibilities (1)



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Selective switch off of frequency inverters by early-make overload tripping

Integration in process automation via time-delayed control with e.g. load pick up or load shedding

Simple setting of the assignment and the time delay of the outputs via rotary coding switches



Application possibilities (2)



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All functions of the module with rotary coding switch including

6 freely configurable digital outputs available for all event messages, e.g. for

Status messages (on, off, tripped, ready-to-close)

Warnings (overload, load shedding, earth fault)

Trips (overload, short circuit, phase unbalance)

Threshold value overshoot (phase unbalance, distortion factor)

Configuration possible with IZM-XEM-PG(E) or remote controlled via PROFIBUS-DP

Digital, configurable output module





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4 analog outputs, 4-20 mA or 0-10 V available

With the IZM measured values can be easily output to external analog instruments:

Phase currents and neutral conductor current,

Phase unbalance of the current,

Active power of the individual phases and as a sum total,

Power factors of the individual phases and as average value

Frequency, etc.

Analog output module





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Optimized selectivity in the range between Isd and Ii

Short delay time tZSI = 50 ms with full selectivity independent of

the number of group levels

ZSl locates the short-circuit

Only the next circuit-breaker in the direction of power flow will be switched off with a short-circuit and / or earth-fault

Reduces the stresses which occur and the damage in the power distribution system during a short-circuit

ZSI – module can be retrofitted with minimum effort at any time

ZSI module (Zone Selective Interlocking)




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• Modules for communication via PROFIBUS DP

• The 3-step communication concept

• The three basic types for cyclic data interchange

• Classification of the signals to be processed




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Necessary modules for communication via PROFIBUS DP:

XCOM-DP Profibus Module(external)

BSS Breaker Status Sensorinternal





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BSS Breaker Status Sensor = internal microswitch scanner unit

Internal circuit-breaker information:

1. Main contacts ON / OFF

2. Spring charged

3. Ready-to-close

4. Tripped signal

5. Temperature in circuit-breaker

6. Signal switches on 1st & 2nd

voltage releases





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EinschaltbereitschaftReady-to-close

FederspeicherzustandSpring charged

Hauptkontakte (EIN/AUS)Main contact (ON/OFF)

Breaker Status Sensor BSS- who signalises what?





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XCOM-DP PROFIBUS Modules

Functions:

• enables remote operated on/off switching, reset, etc.

• setting and modification of all protection parameters, measured value settings,communication parameters, etc.

• simple diagnostics by LED status display

• support for DPV1 PROFIBUS expansion





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Communication without DPV1 (with DPV 0):

Data are transferred exclusively during cyclic data exchange process

Data quantity cannot be changed during operation

Low performance if the quantity of data is too large (e.g. 100 Bytes)

IZM communication with DPV1:

Transfer of the data sets (DS) with up to 245 bytes in only one additional acyclic telegram

DPV1 telegrams are initiated by an application program, just transferred once (e.g. with the system software)

Cyclic data transfer runs in parallel


DPV1 functionality supported



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XCOM-DP PROFIBUS Module

Additional signals:

• time stamp: each event can be allocated to a time

• micro switch on XCOM-DP - Module:position of the withdrawable circuit-breakers

connected test disconnected

• integrated temperature sensor: temperature in the cubicle

• free assignment: 1 input, 1 output





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XCOM-DP PROFIBUS Module

Connections and LED‘s:

LED PROFIBUS:

Off: No voltage on XCOM-DPRed: Fault on Profibus or

Profibus not addressableGreen:Profibus communication OK

LED internal system bus:

Off: No system station foundRed: Error on system busGreen:System bus station found

& communication OK

PROFIBUS interface

System bus connection(on rear side)





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Signalling switches:

(1) Spring charged S41

(2) Breaker ON/OFF S44

(3) Ready-to-close S40

(4) Tripped S45

(5) Status 1st shunt release S42

(6) Connected position S46

(7) Test position S47

(8) Disconnected position S48

(9) Status 2nd shunt release or undervoltage release S43


Status signals for the communication



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The 3-Step

Communication

Concept:

1) fast, easy,

master class 1

2) adaption of the

three basic types

3) acyclic data exchange, master class

1 or 2




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3 Basic types(choice out of more than 400 data points)

Basic type 1

status + 4 values (à 2 byte)

= 14 byte

Basic type 2


= 26 byte

Basic type 3


= 44 byte



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1 Device Classes

1.1 Circuit-Breaker

1.2 Starters

1.3 Switches

1.4 Overload Relay

1.5 Contactor

1.6 Auxiliary Switching Devices

1.7 Control and Protective Switching Devices (or Equipment)


Communication with reference to the

PROFIBUS User Organization Profile



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Default assignment basic type 1 = Format 1 PNO Profil LVSG



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Binary Status Information in the Cyclic Message / 1



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Binary Status Information in the Cyclic Message / 2



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Control bytes to the IZM circuit-breaker / 1



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Control bytes to the IZM circuit-breaker / 2



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Which is the source for requested information?

Group of data points

Data pionts with same source

Trip unitXZMUXZMRXZMD

BreakerStatusSensorXBSS

Comm.module

XCOM-DP

Measurm.function

XMP

Measurm.function

XMH

Protection parameter set A XProtection parameter set B (not for XZMU) XExtended protection parameters X XParameter for setpoints X XPROFIBUS communication parameters XParameters for metering settings X XDevice identification data X XCircuit-breaker position specifications XStatus info. (circuit-breaker on/off, storage spring, etc.) XAlarms XTrips X X XSetpoint messages X XMaintenance information X XCircuit-breaker temperature XTemperature in the cubicle X3-phase currents XCurrent in N-conductor, ground-fault current; equip. spec. X3-phase voltage X XPower P, Q, S, energy X Xcos phi X XFrequency, total harm. distortion, form factor, crest factor X XHarmonic analysis XWaveform buffer XLog book for events and trips XSystem time X



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Classification of the signals to be processed

Status Warning Trip Parameters / Thresholds





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Signals processed for: Status

1. Circuit-breaker on

2. Circuit-breaker off

3. Stored-energy mechanism

4. Operation readiness

5. Voltage release status

6. Collective warnings

7. Group trip messages

8. PROFIBUS write protection

9. PROFIBUS communication OK





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Signals processed for: Warning

1. Overload

2. N-conductor overload

3. Load shedding

4. Earth-fault

5. Over temperature

6. Microprocessor fault

7. Current phase unbalance

8. Load acceptance





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Signals processed for: Trip

Overload Delayed short-circuit

Instantaneous short-circuit Current phase unbalance

Earth-fault N-conductor overload

Current phase unbalance (5-50%) Voltage phase unbalance

Under-frequency Over-frequency

Undervoltage Overvoltage

Active power in normal direction Active power reverse direction

Voltage harmonic distortion Current harmonic distortion

Phase sense of rotation





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Signals processed for: Parameters / Thresholds

Overcurrent N-conductor overcurrent

Earth fault overcurrent Current phase unbalance

Voltage phase unbalance Current long-time average value

Undervoltage Overvoltage

Current harmonic distortion Voltage harmonic distortion

Peak factor Form factor

Under-frequency Over-frequency

Active power in normal direction Active power reverse direction

Apparent power Reactive power in normal direction

Reactive power reverse direction Capacitive power factor

Inductive power factor Long-time active average power

Long-time average reactive power Long-time average apparent power





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Part 4:

Further information

about the additional modules




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Status displaySystem bus, module and inputs

Parameter setswitchoverwith two stagerotary coding switch (no further inputs can be assigned)

PROFIBUS Input6 digital inputs possible

or

Max. 2 input-modules per IZM

Systembus

Part 4: Further inf. about the additional modules




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edOutput assignment 2 Alarms, e.g. early-maketrip indication, trip unitfault, load shedding, load acceptance,temperature alarm, phase unbalance

Output assignment 1Trips, e.g. overload tripping, short-delayedshort-circuit tripping,instantaneousshort-circuit tripping,earth-fault trip, earth-fault alarm,neutral conductor trip

Selection of the delay time(0; 0,2; 0,5; 1, 2s) and the output assignment via10 stage rotary coding switch

Status displaySystem bus, module and outputs

Systembus





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Max. 2 analogoutput modulesper IZM

Systembus

Assignment of the 6 outputs via software

e.g. with:

•Status

•Warnings

•Trips

•PROFIBUS output bits

•Active parameter set

•Threshold values


Digital, configurable output module



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Output assignmentvia 10 stage rotary coding switch


1st module 2nd module

Max. 2 analogoutput modulesper IZM

Systembus

AO1 AO2 AO3 AO4

I I L1 I L2 I L3 I N U U L1-L2 U L2-L3 U L3-L1 U L1-N P P L1 P L2 P L3 S total

I phase unbalancecos phi

Output

Switch position

cos phi L1 cos phi L2 cos phi L3cos phi


Analog output module



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OFF ZSI Module deactivated

S ZSI Module only effective forshort-delayed short-circuit

G ZSI Module only effective forearth-fault protection

S+G ZSI Module only effective forshort-delayed short-circuit and earth-fault protection

Test Test position for verifyingthe ZSI functionality

Function selection viarotary coding switch

Systembus


ZSI module



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Inhibit signal - output for tie switch

Inhibit signal - output

Inhibit signal - input

Inhibit signal for the medium voltage range (transformer protection)

Systembus


ZSI module



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Part 5:

Further information

about the measurement modules




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Current measurement :

1. Currents of L1 / L2 / L3 / N / G

2. Thresholds * overcurrent in phase* earth-fault* overcurrent in N conductor* phase unbalance of the current * current long-time average value

3. Extended protective functions* phase unbalance* long-time average value* distortion factor


“Power” and “Harmonic” measurement functions



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Current measurement :

4. Measurement accuracywith the use of highly accurate Rogovski coils (measurement transformer):

+/- 1% in a range from 0.1 - 1.25 x In

+/- 20% in a range from 0.01 - 0.1 x In

1.25 - 40 x In

0 A if < 0.01 x In

Current evaluation values as rms values





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Voltage measurement :

1. Phase and main pole voltage

2. Thresholds * undervoltage* phase unbalance of the voltage * overvoltage

3. Extended protective functions * phase unbalance* under voltage* overvoltage





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Voltage measurement :

4. Measurement accuracy

An external voltage transformer kit is required. It measures the conductor voltages between the phases L1 / L2 / L3 . These values are isolated and handled by the Analog-Digital converter (ADC).

+/- 1% in a range from 130 - 1150V ( main pole voltages )+/- 5% in a range from 15 - 130V

0 V if < 15V

Voltage evaluation values as rms values



Documents

Moeller GmbH BU Circuit Breaker Protective note to rule DIN ISO 16016 is to be considered The new line of circuit breaker IZM ILS-P / W. Wagner Aug 03,