Generator DifferentialProtection RelayMCDGV4

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Electrical Power Systems

2012/04/02

Applications

• For the generator differential protection two main applications are very common.Example left, generator differential protection with a direct connection to a busbar. At the busbar severalgenerators could be connected. The GRID connection is at the primary side of the MV transformer.Example right, block protection application. The generator differential protection offers the possibility to protectthe generator and the transformer. The MV busbar connection is at the primary side of the transformer.

2

Electrical Power Systems Proprietary Information●●●

All in one

• The HighPROTEC is consisted in handling, wiring, documentation andcommissioning over the complete line to reduce training andcommisioning costs.

• As standard, the devices are fully equipped with all functions required bythe corresponding application without an additional price, all in onestrategy.

• Because the easy operating concept applies for all relay types and for theparameter setting software “Smart view SE”, which is for free.

• Explanation texts are shown at the HMI and Smart view to get a veryefficient overview. The plausibility checks protect the customer againstparameterizing failures.

• Smart view functionality included the parameterizing software and adisturbance analyzing software for the complete product line.The save product package contains the manual, all data point lists andmanuals for the communication protocols, smart view and an end of linetest report.

3

Electrical Power Systems

• The HighPROTEC is consisted in handling, wiring, documentation andcommissioning over the complete line to reduce training andcommisioning costs.

• As standard, the devices are fully equipped with all functions required bythe corresponding application without an additional price, all in onestrategy.

• Because the easy operating concept applies for all relay types and for theparameter setting software “Smart view SE”, which is for free.

• Explanation texts are shown at the HMI and Smart view to get a veryefficient overview. The plausibility checks protect the customer againstparameterizing failures.

• Smart view functionality included the parameterizing software and adisturbance analyzing software for the complete product line.The save product package contains the manual, all data point lists andmanuals for the communication protocols, smart view and an end of linetest report.

Proprietary Information●●●

Ordering the Generator differential protectiondevice

4

Device Directional Generator /Motor differential protection with

control function MCDGV4

Standard + hardware variants 1

Indirectcontrollableswitchgears

AnalogInput/Output

Inputs RTDTemperatureSupervision

RTDremoteinterface

Digitalinputs

Outputrelays Housing

Largedisplay

X - - X 16 11 B2+ X AX 2 + 2 - X 8 11 B2+ X B

Hardware variants 2Phase Current 5A/1A, Ground

Current 5A/1A 0

Phase Current 5A/1A, W1 SensitiveGround Current 5A/1A 1

Housing and mountingDoor mounting A

Door mounting 19" (flush mounting) B

Electrical Power Systems Proprietary Information●●●

Door mounting 19" (flush mounting) B

Communication protocolProtocol / connection

Without protocol ARS485 / terminals

Modbus RTUIEC 60870-5-103

IRIG-B (terminals) BModbus TCP

Ethernet 100MB / RJ45 connector*1 C

Profibus-DPFibre D

Profibus-DPRS485 / D-SUB E

Fibre optic interfaceModbus RTU

IEC 60870-5-103IRIG-B (terminals) F

RS485 / D-SUB interfaceModbus RTU

IEC 60870-5-103IRIG-B (terminals) G

IEC61850 / Ethernet 100MB, RJ45 HAvailable menu languages

Standard English / German /Russia

Protection function overview5

Standard No. ofSettings

ANSIDefinition

Generator differential protection, Id>, Id>> 2 87GRestricted earth fault IdE>, IdE>> 2 64REF / 87N100% Stator earth fault protection with 3 Harmonics 59TN/27TN

I, overcurrent, short circuit protection, all steps directional or non-directional

6 50P, 51P, 67P

I2, negative phase sequence 2 46

Generator unbalanced 46G

IB, overload protection, alarm and trip threshold 1 49

IH2/In, inrush detection 2 harmonics 1 Inrush

Underload supervison 2 37

CBF, circuit breaker failure 1 50BF

Standard No. ofSettings

ANSIDefinition

SOTF Switch onto faultCold load pick up

Grid function characteristic voltage protection (FRTcharacteristics)Asymmetry protection voltageU1, under and overvoltage in positive sequence voltage systemU2, overvoltage in negative sequence voltage system

6 47

P, under and overpower protectionQ, under and over reactive powerQr, Reactive reserve powerS, under and over apparent powerPr, over reverse powerPF, power factor cos ϕ

6

2

32F, 37F,32Q, 37Q,

37QR32S,37S,

37R55

Electrical Power Systems Proprietary Information●●●

CBF, circuit breaker failure 1 50BF

IE, earth overcurrent and short circuit trip, all steps directional ornon-directional

4 50N, 51N, 67N

IE, sensitive earth overcurrent- and short circuit trip, all steps withdirection 4

50Ns, 51Ns,67Ns

TCS, trip circuit supervision via digital inputs 1 74TC

U, under and overvoltage protection 4 27, 59

UE, residual overvoltage protection 2 59N

f, under and overfrequency protection 6 81 U/O

VTS, voltage transformer supervision, supervision via comparisonof phase to residual voltage

1 60FL

VTS, fuse failure via digital input 1 60FL

CTS, current transformer supervision, supervision via comparisonof phase to earth current

1 60L

Auxiliary relays with reset 86

External alarm und trip function 4

General trip blockdf/dt, frequency gradient combined with frequency protection 81R∆ Θ ,Vector surge 78

P, under and overpower protectionQ, under and over reactive powerQr, Reactive reserve powerS, under and over apparent powerPr, over reverse powerPF, power factor cos ϕ

6

2

32F, 37F,32Q, 37Q,

37QR32S,37S,

37R55

Voltage restraint 51V

Voltage controlled 51C

Q_U protection

FRT charcetristics for voltage supervison

Synchro check 25

Volts / Hertz 24

Loss of field (excitation) 40

RTD temperature supervision

Inadvertent energization 50/27

Block protection, Transformer group selection

Front side6

Rear side► 14 Free settable LED´s► Graphical Display, free designable SingleLine► 4 Soft buttons► 4 Function buttons► Parameterizing interface

Electrical Power Systems Proprietary Information●●●

Rear side7

Rear side► X1 Power supply and digital inputs► X2 Relay outputs► X3 CT measuring board► X4 CT measuring board► X5 MCDGV4A = 8 digital inputs + 4 Relay outputs► MCDGV4B = 2 analog inputs, 2 analog outputs + 4 Relay outputs► X6 VT measuring board

► X100 Ethernet (RJ45)► X101/2 URDT interface (fiber optic)► X103 Communication Interface (Modbus, Profibus)► X104 IRIG/ Watchdog

Electrical Power Systems Proprietary Information●●●