RET615 - Transformadores Diferencial

Relion 615 series

Transformer Protection and ControlRET615Product Guide

Contents

1. Description.....................................................................32. Standard configurations.................................................33. Protection functions......................................................144. Application...................................................................145. Supported ABB solutions.............................................186. Control.........................................................................197. Measurements.............................................................208. Disturbance recorder....................................................209. Event log......................................................................2010. Recorded data............................................................2011. Condition monitoring ..................................................2012. Trip-circuit supervision.................................................2013. Self-supervision...........................................................2114. Fuse failure supervision...............................................2115. Access control............................................................21

16. Inputs and outputs......................................................2117. Station communication................................................2218. Technical data.............................................................2719. Local HMI....................................................................4920. Mounting methods......................................................5021. IED case and IED plug-in unit......................................5022. Selection and ordering data.........................................5023. Accessories and ordering data....................................5124. Tools...........................................................................5225. Cyber security.............................................................5326. Terminal diagrams.......................................................5427. Certificates..................................................................5628. References..................................................................5629. Functions, codes and symbols....................................5730. Document revision history...........................................59

DisclaimerThe information in this document is subject to change without notice and should not be construed as a commitment by ABB. ABB assumes no responsibility for anyerrors that may appear in this document. Copyright 2014 ABB.All rights reserved.TrademarksABB and Relion are registered trademarks of the ABB Group. All other brand or product names mentioned in this document may be trademarks or registeredtrademarks of their respective holders.

Transformer Protection and Control 1MRS756891 HRET615 Product version: 5.0

2 ABB

1. DescriptionRET615 is a dedicated transformer protection and control IED(intelligent electronic device) for power transformers, unit andstep-up transformers including power generator-transformerblocks in utility and industry power distribution systems.RET615 is a member of ABBs Relion product family andpart of its 615 protection and control product series. The 615series IEDs are characterized by their compactness andwithdrawable-unit design.Re-engineered from the ground up, the 615 series has beendesigned to unleash the full potential of the IEC 61850standard for communication and interoperability betweensubstation automation devices. Once the standardconfiguration IED has been given the application-specificsettings, it can directly be put into service.The 615 series IEDs support a range of communicationprotocols including IEC 61850 with GOOSE messaging, IEC61850-9-2 LE (except in RED615), IEC 60870-5-103,Modbus and DNP3. Profibus DPV1 communication protocolis supported by using the protocol converter SPA-ZC 302.

2. Standard configurationsRET615 is available in eight alternative standardconfigurations. The standard signal configuration can bealtered by means of the signal matrix or the graphicalapplication functionality of the Protection and Control IEDManager PCM600. Further, the application configurationfunctionality of PCM600 supports the creation of multi-layerlogic functions utilizing various logical elements includingtimers and flip-flops. By combining protection functions withlogic function blocks the IED configuration can be adapted touser specific application requirements.The IED is delivered from the factory with default connectionsdescribed in the functional diagrams for binary inputs, binaryoutputs, function-to-function connections and alarm LEDs.The positive measuring direction of directional protectionfunctions is towards the outgoing feeder.

Transformer Protection and Control 1MRS756891 HRET615 Product version: 5.0 Issued: 2014-01-24

Revision: H

ABB 3

5 Master tripLockout relay

94/86

6RTD2mA

CONDITION MONITORING AND SUPERVISION

1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE

- Disturbance and fault recorders- Event log and recorded data- High-Speed Output module (optional)- IED self-supervision - Local/Remote push button on LHMI- User management- Web HMI

ORAND

CONTROL AND INDICATION 1) MEASUREMENT

TRANSFORMER PROTECTION AND CONTROL IED

PROTECTION LOCAL HMI

Object Ctrl 2) Ind 3)

CB

DC

ES1) Check availability of binary inputs/outputs

from technical documentation2) Control and indication function for

primary object3) Status indication function for primary object

1 -

2 3

1 2

STANDARD CONFIGURATION

REMARKS

Optionalfunction

No. ofinstances

Alternative function to be dened when ordering

OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O

Conguration ASystemHMITimeAuthorization

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION

Protocols: IEC 61850-8-1 Modbus

IEC 60870-5-103 DNP3

Interfaces: Ethernet: TX (RJ45), FX (LC) Serial: Serial glass ber (ST), RS-485, RS-232/485 D-sub 9, IRIG-BRedundant protocols: HSR PRP RSTP

RET615

- HV side: I, Io - LV side: I- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

Analog interface types 1)

Current transformer

1) Conventional transformer inputs

Voltage transformer

7

-

A

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

2TCSTCM

CBCMCBCM

OPTSOPTM

3I>>51P-2

3I>>>50P/51P

3I>51P-1

Io>51N-1

Io>>51N-2

dIoLo>87NL

18MAPMAP

TPOSM84M

Io (HV)

Io

Io

3I (LV)

3

3I (HV)

GUID-C90DE25B-AEC6-4542-8FC8-F4604ACDB769 V1 EN

Figure 1. Functionality overview for standard configuration A


4 ABB


94/86


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615

- HV side: I - LV side: I, Io- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

B


Current transformer


Voltage transformer

7

-

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

2TCSTCM

CBCMCBCM

OPTSOPTM

3I>>51P-2

3I>>>50P/51P

3I>51P-1

Io>51N-1

Io>>51N-2

dIoLo>87NL

18MAPMAP

Io

Io

Io (LV)

TPOSM84M

6RTD2mA

3

3I (HV)

3I (LV)

GUID-C948BC5D-9075-4336-86FC-B8C3F7BA5BAB V1 EN

Figure 2. Functionality overview for standard configuration B


ABB 5

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight


94/86


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615

- HV side: I, Io- LV side: I- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components


Current transformer


Voltage transformer

7

-

C

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

2TCSTCM

CBCMCBCM

OPTSOPTM

Io>51N-1

Io>>51N-2

18MAPMAP

dIoHi>87NH

I2>46

3ARC

50L/50NL

3I>>51P-2

3I>>>50P/51P

3I>51P-1

TPOSM84M

3I (HV)

3I (LV)

Io

Io (HV)

Io

6RTD2mA

3

GUID-F8F3319F-B60D-47EF-A940-0891BC683D6C V1 EN

Figure 3. Functionality overview for standard configuration C


6 ABB

6RTD2mA


94/86


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615

- HV side: I - LV side: I, Io- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

D


Current transformer


Voltage transformer

7

-

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

2TCSTCM

CBCMCBCM

OPTSOPTM

3I>>51P-2

3I>>>50P/51P

3I>51P-1

Io>51N-1

Io>>51N-2

dIoHi>87NH

18MAPMAP

TPOSM84M

3I (HV)

3I (LV)

Io (LV)

Io

3

Io

GUID-422AE187-3E2A-4A20-BBE2-2B8A840DC1FA V1 EN

Figure 4. Functionality overview for standard configuration D


ABB 7


94/86

2xRTD1xmA


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION

Protocols: IEC 61850-8-1/9-2LE Modbus

IEC 60870-5-103 DNP3


RET615


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615 E

7

5


Current transformer


Voltage transformer 2)

2) One of the ve inputs is reserved for future applications

- HV side: I, Io, U, Uo, P, Q, E, pf- LV side: I- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

2TCSTCM

CBCMCBCM

OPTSOPTM

3I>>51P-2

3I>>>50P/51P

3I>51P-1

Io>51N-1

Io>>51N-2

dIoLo>87NL

23U59G

FUSEF60

18MAPMAP

3I (LV)

23U>59

UL1

UL2

UL3

UL1UL2UL3

Uo

Uo

Io

Io

Io (HV)

UL1UL2UL3

TPOSM84M

3

3I (HV)

3I (HV)

GUID-DC590CA4-DF86-499D-8B77-3DE0CB2997F0 V1 EN

Figure 5. Functionality overview for standard configuration E


8 ABB


94/86

2RTD1mA


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615 F

7

5


Current transformer


Voltage transformer 2)

2) One of the ve inputs is reserved for future applications

- HV side: I, U, Uo, P, Q, E, pf - LV side: I, Io- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

3I>>51P-2

3I>>>50P/51P

3I>51P-1

23U59G

2TCSTCM

CBCMCBCM

OPTSOPTM

FUSEF60

23U>59

TPOSM84M

Io>51N-1

Io>>51N-2

dIoLo>87NL

18MAPMAP

3I (LV)

UL1UL2UL3

Uo

3I (HV)

UL1UL2UL3

Io (LV)

Io

3

3I (HV)

Io

UL1

UL2

UL3

Uo

GUID-7F2F76A7-E9D6-4845-8A56-42144178898C V1 EN

Figure 6. Functionality overview for standard configuration F


ABB 9


94/86


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615 G


Current transformer


Voltage transformer

7

5

- HV side: I, Io, U, Uo, P, Q, E, pf - LV side: I- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

3I>>51P-2

3I>>>50P/51P

3I>51P-1

Io>51N-1

Io>>51N-2

23U59G

dIoHi>87NH

2TCSTCM

CBCMCBCM

OPTSOPTM

FUSEF60

23U>59

TPOSM84M

3I (LV)

Io

UL1UL2UL3

Io

3

3I (HV)

3I (HV)

18MAPMAP

2xRTD1xmA

Io (HV)

UL1

UL2

UL3

UL1UL2UL3

Uo

Uo

GUID-D133822F-DB95-4CF6-B971-9D67054A5731 V1 EN

Figure 7. Functionality overview for standard configuration G


10 ABB

2RTD1mA


94/86


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ALSO AVAILABLE


ORAND





CB

DC




1 -

2 3

1 2


REMARKS

Optionalfunction

No. ofinstances


OR

Io/Uo

Calculatedvalue

3

RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


RET615


Current transformer


Voltage transformer

7

5

- HV side: I, U, Uo, P, Q, E, pf - LV side: I, Io- Limit value supervision- Load prole record- RTD/mA measurement, optional- Symmetrical components

H

I2>46

3Ith>T49T

3I>>>50P/51P

3I>/Io>BF51BF/51NBF

3I>51P-1

3I>>51P-2

3dI>T87T

I2>46

3ARC

50L/50NL

3I>>51P-2

3I>>>50P/51P

3I>51P-1

Io>51N-1

Io>>51N-2

23U59G

dIoHi>87NH

2TCSTCM

CBCMCBCM

OPTSOPTM

FUSEF60

23U>59

18MAPMAP

3I (LV)

UL1UL2UL3

Io

3

3I (HV)

Io (LV)

3I (HV)

Io

UL1

UL2

UL3

UL1UL2UL3

Uo

Uo

GUID-8C9FE17B-5399-487C-BE59-7377D23FC744 V1 EN

Figure 8. Functionality overview for standard configuration H


ABB 11

Table 1. Standard configurations

Description Std. conf.Three-phase transformer differential protection for two-winding transformers, numerical restricted earth-fault protection for thehigh-voltage (HV) side, optional RTD/mA inputs A

Three-phase transformer differential protection for two-winding transformers, numerical restricted earth-fault protection for thelow-voltage (LV) side, optional RTD/mA inputs B

Three-phase transformer differential protection for two-winding transformers, high-impedance based restricted earth-faultprotection for the high-voltage (HV) side, optional RTD/mA inputs C

Three-phase transformer differential protection for two-winding transformers, high-impedance based restricted earth-faultprotection for the low-voltage (LV) side, optional RTD/mA inputs D

Three-phase transformer differential protection for two-winding transformers, numerical restricted earth-fault protection for thehigh-voltage (HV) side, phase-voltage based protection and measurement functions E

Three-phase transformer differential protection for two-winding transformers, numerical restricted earth-fault protection for thelow-voltage (LV) side, phase-voltage based protection and measurement functions F

Three-phase transformer differential protection for two-winding transformers, high-impedance based restricted earth-faultprotection for the high-voltage (HV) side, phase-voltage based protection and measurement functions G

Three-phase transformer differential protection for two-winding transformers, high-impedance based restricted earth-faultprotection for the low-voltage (LV) side, phase-voltage based protection and measurement functions H


12 ABB

Table 2. Supported functionsFunction IEC 61850 A B C D E F G HProtection1)Three-phase non-directional overcurrentprotection, low stage PHLPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVThree-phase non-directional overcurrentprotection, low stage PHLPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVThree-phase non-directional overcurrentprotection, high stage PHHPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVThree-phase non-directional overcurrentprotection, high stage PHHPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVThree-phase non-directional overcurrentprotection, instantaneous stage PHIPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVThree-phase non-directional overcurrentprotection, instantaneous stage PHIPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVNon-directional earth-fault protection, low stage EFLPTOC1 1 HV 2) 1 HV 3) 1 HV 2) 1 HV 3) Non-directional earth-fault protection, low stage EFLPTOC2 1 LV 4) 1 LV 5) 1 LV 4) 1 LV 5)Non-directional earth-fault protection, highstage EFHPTOC1 1 HV 2) 1 HV 3) 1 HV 2) 1 HV 3) Non-directional earth-fault protection, highstage EFHPTOC2 1 LV 4) 1 LV 5) 1 LV 4) 1 LV 5)Negative-sequence overcurrent protection NSPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVNegative-sequence overcurrent protection NSPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVResidual overvoltage protection ROVPTOV 2 HV 6) 2 HV 6) 2 HV 6) 2 HV 6)Three-phase undervoltage protection PHPTUV 2 HV 2 HV 2 HV 2 HVThree-phase overvoltage protection PHPTOV 2 HV 2 HV 2 HV 2 HVThree-phase thermal overload protection forpower transformers, two time constants T2PTTR 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVStabilized and instantaneous differentialprotection for 2W-transformers TR2PTDF 1 1 1 1 1 1 1 1Numerical stabilized low impedance restrictedearth-fault protection LREFPNDF 1 HV 1 LV 7) 1 HV 1 LV 7) High impedance-based restricted earth-faultprotection HREFPDIF 1 HV 1 LV 8) 1 HV 1 LV 8)

Circuit breaker failure protection 3) CCBRBRF 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVMaster trip 9) TRPPTRC 2 (5) 2 (5) 2 (5) 2 (5) 2 (5) 2 (5) 2 (5) 2 (5)Arc protection 10) ARCSARC (3) LV (3) LV (3) LV (3) LV (3) LV (3) LV (3) LV (3) LVMulti-purpose protection 11)12) MAPGAPC 18 18 18 18 18 18 18 18ControlCircuit-breaker control CBXCBR 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVDisconnector control 12) DCXSWI 2 2 2 2 2 2 2 2Earthing switch control 12) ESXSWI 1 1 1 1 1 1 1 1Disconnector position indication 12) DCSXSWI 3 3 3 3 3 3 3 3Earthing switch indication 12) ESSXSWI 2 2 2 2 2 2 2 2Tap changer position indication TPOSSLTC 1 1 1 1 1 1 1 1Condition monitoringCircuit-breaker condition monitoring SSCBR 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVTrip circuit supervision TCSSCBR 2 2 2 2 2 2 2 2Fuse failure supervision SEQRFUF 1 1 1 1Runtime counter for machines and devices MDSOPT 1 1 1 1 1 1 1 1MeasurementDisturbance recorder RDRE 1 1 1 1 1 1 1 1Load profile record LDPMSTA 1 1 1 1 1 1 1 1Three-phase current measurement CMMXU1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVThree-phase current measurement CMMXU2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVSequence current measurement CSMSQI 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVResidual current measurement RESCMMXU1 1 HV 1 HV 1 HV 1 HV Residual current measurement RESCMMXU2 1 LV 1 LV 1 LV 1 LVThree-phase voltage measurement VMMXU 1 HV 1 HV 1 HV 1 HVResidual voltage measurement RESVMMXU 1 HV 1 HV 1 HV 1 HV


ABB 13

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

BRCLSANHighlight

Table 2. Supported functions, continuedFunction IEC 61850 A B C D E F G HSequence voltage measurement VSMSQI 1 HV 1 HV 1 HV 1 HVThree-phase power and energy measurement PEMMXU 1 HV 1 HV 1 HV 1 HVRTD/mA measurement XRGGIO130 (1) (1) (1) (1) (1) (1) (1) (1)IEC 61850-9-2 LE (Voltage sharing) 13) SMVSENDER (1) (1) (1) (1)HV = The function block is to be used on the high-voltage side in the application.LV = The function block is to be used on the low-voltage side in the application.1, 2, ... = number of included instances() = optional

1) The instances of a protection function represent the number of identical protection function blocks available in the standard configuration.2) Io selectable by parameter, "Io measured" as default3) "Io calculated" is always used.4) IoB selectable by parameter, "IoB measured" as default5) "IoB calculated" is always used.6) Uo selectable by parameter, "Uo measured" as default7) IoB measured and 3IB are always used.8) IoB measured is always used.9) Master trip included and connected to the corresponding HSO in the configuration only when the BIO0007 module is used. If the ARC option is selected additionally, ARCSARC is

connected to the corresponding master trip input in the configuration.10) IoB calculated and 3IB are always used.11) Multi-purpose protection is used, for example, for RTD/mA-based protection or analog GOOSE.12) Must be added with Application Configuration to be available in Signal Matrix and in IED.13) Only available with COM0031-COM0034

3. Protection functionsThe IED features, three-phase, multi-slope stabilized (biased)stage transformer differential protection and an instantaneousstage to provide fast and selective protection for phase-to-phase short-circuit, winding interturn fault and bushing flash-over protection. Besides second harmonic restraint anadvanced waveform-based blocking algorithm ensuresstability at transformer energization and a fifth harmonicrestraint function ensures good protection stability atmoderate overexcitation of power transformers. Sensitiverestricted earth-fault protection completes the overalldifferential protection providing detection of even singlephase-to-earth faults close to the neutral earthing point of thetransformer. Either the conventional high-impedance schemeor a numerical low-impedance scheme can be selected forprotection of the transformer windings. When low-impedancerestricted earth-fault protection is used neither stabilizingresistors nor varistors are needed and as a further benefit thetransforming ratio of the neutral earthing CTs can differ fromthose of the phase current transformers. Due to its unitprotection character and absolute selectivity restricted earth-fault does not need to be time-graded with other protectionschemes, and therefore high speed fault clearance can beachieved.The IED also incorporates a thermal overload protectionfunction, which supervises the thermal stress of thetransformer windings to prevent premature aging of theinsulation of the windings. Multiple stages of short-circuit,phase-overcurrent, negative-phase-sequence and earth-faultback-up protection are separately available for both sides ofthe power transformer. Earth-fault protection based on themeasured or calculated residual voltage is also available.Depending on the chosen standard configuration the IED also

features three-phase overvoltage protection, three-phaseundervoltage protection and residual overvoltage protection.Further, the IED also offers circuit breaker failure protection.Enhanced with optional hardware and software, the IED alsofeatures three light detection channels for arc fault protectionof the circuit breaker, busbar and cable compartment ofmetal-enclosed indoor switchgear.The arc-fault protection sensor interface is available on theoptional communication module. Fast tripping increases staffsafety and security and limits material damage in an arc faultsituation. A binary input and output module can be selectedas an option - having three high speed binary outputs (HSO) itfurther decreases the total operate time with typically 4...6 mscompared to the normal power outputs.

4. ApplicationRET615 provides main protection for two-winding powertransformers and power generator-transformer blocks. As ofnow, there are eight standard configurations offeringcomprehensive protection functions for detection andelimination of operational disturbance conditions and powertransformer faults.The standard configurations A, C, E and G are intended forpower transformers with earthed HV-side neutrals. The A andE configuration features low impedance REF protection whilethe C and G configuration offers high impedance REFprotection. The B, D, F and H configurations fit transformerswith solidly-earthed LV-side neutral or the LV side with aneutral earthing resistor. The B, D, F and H configurationsalso fit applications including a separate earthing transformerlocated within the area of protection. The A, B , E, and F


14 ABB

configurations also suit applications, where the turns ratio ofthe CT of the neutral earthing circuit differs from the turnsratio of the line CTs. The C, D, G and H configurations requirethat the turns ratios of the CTs are equal.Standard configurations E, F, G and H include phase-voltageprotection and measurement functions which provide two-stage power transformer overvoltage and undervoltageprotection and/or supervision.Two optional RTD/mA modules are available.The optional RTD/mA module offered for the standardconfigurations A-D allows up to eight analog signals to bemeasured via the six RTD inputs and the two mA inputs usingtransducers. The RTD and mA inputs can be used formeasuring the oil temperature at the bottom and top of thetransformer. Furthermore, the RTD/mA inputs can be used formeasuring the ambient air temperature. The RTD inputs alsooffer thermal protection of dry-type power transformers fittedwith Pt-100 temperature sensors. Temperature measurement

over the RTD/mA inputs extends the function of the three-phase thermal overload protection of the IED. Further, one ofthe RTD inputs can also be used as a direct resistancemeasuring input for position information of the on-load tapchanger. Alternatively, the tap changer position indication canbe obtained via a mA-transducer.The optional RTD/mA module offered for the standardconfigurations E-H allows up to three analog signals to bemeasured via the two RTD inputs and the one mA input usingtransducers. The RTD inputs can be used for measuring theoil temperature and the ambient air temperature. Temperaturemeasurement over the RTD inputs extends the function of thethree-phase thermal overload protection of the IED. For on-load tap changer the tap changer position indication can beobtained via a mA-transducer. The analog temperature or tapchanger position values can, if required, be sent using analoghorizontal GOOSE messaging to other IEDs. Analog valuescan also, vice versa, be received from other IEDs over thestation bus, thus improving the extent of relevant information.

3I (LV)

RTD

3I (HV)

Io (HV)

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

RET615Std. conf.

ANSI IEC

49T

50L/50NL

50P/51P

51P/51N

87NL

87T

3Ith>T

ARC

3I>>>

3I/Io

dIoLo>

3dI>T

A

GUID-6657E450-7FB8-4154-954D-E896064D04A3 V1 EN

Figure 9. Protection of two winding power transformer with RET615 standard configuration A

Protection of two winding power transformer with RET615standard configuration A. Main protection used in thisapplication example is transformer differential protection.

Additionally restricted E/F with numerical low impedanceprinciple is applied on the transformer HV side.


ABB 15

RET615Std. conf.

ANSI IEC

49T

50L/50NL

50P/51P

51P/51N

87NH

87T

3Ith>T

ARC

3I>>>

3I/Io

dIoHi>

3dI>T

D

3I (LV)

RTD

3I (HV)

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

Io (LV)

GUID-46A1FCF8-F2EC-4737-9EA8-636E4AEF84FC V1 EN

Figure 10. Protection of two winding power transformer with RET615 standard configuration D

Protection of two winding power transformer with RET615standard configuration D. Main protection used in thisapplication example is transformer differential protection.

Additionally restricted E/F with high impedance principle isapplied on the transformer LV side.

3U Uo

3I (LV)

RTD

3I (HV)

Io (HV)

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

RET615Std. conf.

ANSI IEC

27/59

49T

50L/50NL

50P/51P

51P/51N

59G

87NL

87T

3U

3Ith>T

ARC

3I>>>

3I/Io

Uo>

dIoLo>

3dI>T

E

GUID-3C760FFC-6D6B-4860-A198-4BA4273B32D9 V1 EN

Figure 11. Protection of two winding power transformer with RET615 standard configuration E

Protection of two winding power transformer with RET615standard configuration E. Main protection used in thisapplication example is transformer differential protection.

Additionally restricted E/F with numerical low impedanceprinciple is applied on the transformer HV side and alsovoltage based protection.


16 ABB

REU615Std. conf.

ANSI IEC

27/59

50P/51P

51P/51N

84M

90V

3U

3I>>>

3I/Io

TPOSM

COLTC

B

RET615Std. conf.

ANSI IEC

27/59

49T

50L/50NL

50P/51P

51P/51N

87NL

87T

3U

3Ith>T

ARC

3I>>>

3I/Io

dIoLo>

3dI>T

E

3I (LV)

RTD

3I (HV)

Io (HV)

3U

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

3U Uo

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

GUID-AB31C909-F38E-4885-AFEE-E2EEE3675263 V4 EN

Figure 12. Protection of a two winding power transformer with RET615 standard configuration E

Protection of a two winding power transformer with RET615standard configuration. Main protection used in thisapplication example is transformer differential protection.Restricted E/F protection with numerical low impedanceprinciple is applied on the transformer HV-side. The RTD

inputs of are utilized for monitoring the oil temperature and oillevel of the transformer. Additionally a REU615 with thestandard configuration B is used as automatic voltageregulator for the on-load tap changer of the transformer.


ABB 17

5. Supported ABB solutionsABBs 615 series protection and control IEDs together withthe grid automation controller COM600 constitute a genuineIEC 61850 solution for reliable power distribution in utility andindustrial power systems. To facilitate and streamline thesystem engineering, ABB's IEDs are supplied withconnectivity packages. The connectivity packages include acompilation of software and IED-specific information,including single-line diagram templates and a full IED datamodel. The data model also includes event and parameterlists. With the connectivity packages, the IEDs can be readilyconfigured using PCM600 and integrated with the gridautomation controller COM600 or the network control andmanagement system MicroSCADA Pro.The 615 series IEDs offer native support for the IEC 61850standard also including binary and analog horizontal GOOSEmessaging. In addition, process bus with sampled values ofanalog phase voltages is supported. Process bus withsampled values of analog phase voltages is also supported.Compared to traditional hard-wired, inter-device signaling,peer-to-peer communication over a switched Ethernet LANoffers an advanced and versatile platform for power systemprotection. Among the distinctive features of the protectionsystem approach, enabled by the full implementation of theIEC 61850 substation automation standard, are fastcommunication capability, continuous supervision of theintegrity of the protection and communication system, and aninherent flexibility regarding reconfiguration and upgrades.At substation level, COM600 uses the data content of the bay-level IEDs to enhance substation level functionality. COM600features a Web browser-based HMI, which provides a

customizable graphical display for visualizing single-line mimicdiagrams for switchgear bay solutions. The SLD feature isespecially useful when 615 series IEDs without the optionalsingle-line diagram feature are used. The Web HMI ofCOM600 also provides an overview of the whole substation,including IED-specific single-line diagrams, which makesinformation easily accessible. Substation devices andprocesses can also be remotely accessed through the WebHMI, which improves personnel safety.In addition, COM600 can be used as a local data warehousefor the substation's technical documentation and for thenetwork data collected by the IEDs. The collected networkdata facilitates extensive reporting and analyzing of networkfault situations, by using the data historian and event handlingfeatures of COM600. The history data can be used foraccurate monitoring of process and equipment performance,using calculations based on both real-time and history values.A better understanding of the process dynamics is achievedby combining time-based process measurements withproduction and maintenance events.COM600 can also function as a gateway and providesseamless connectivity between the substation IEDs andnetwork-level control and management systems, such asMicroSCADA Pro and System 800xA.GOOSE Analyzer interface in COM600 enables the followingand analyzing the horizontal IEC 61850 application duringcommissioning and operation at station level. It logs allGOOSE events during substation operation to enableimproved system supervision.

Table 3. Supported ABB solutions

Product VersionGrid automation controller COM600 4.0 SP1 or laterMicroSCADA Pro SYS 600 9.3 FP2 or laterSystem 800xA 5.1 or later


18 ABB

PCM600Ethernet switch

Utility: IEC 60870-5-104Industry: OPC

COM600Web HMI

ABBMicroSCADA Pro/

System 800xA

Analog and binary horizontal GOOSE communication IEC 61850

PCM600Ethernet switch

COM600Web HMI

Analog and binary horizontal GOOSE communication IEC 61850

GUID-4D002AA0-E35D-4D3F-A157-01F1A3044DDB V1 EN

Figure 13. ABB power system example using Relion IEDs, Grid Automation controller COM600 and MicroSCADA Pro/System 800xA

6. ControlRET615 integrates functionality for the control of a circuitbreaker via the front panel HMI or by means of remotecontrols. In addition to the circuit-breaker control the IEDfeatures two control blocks which are intended for motor-operated control of disconnectors or circuit breaker truck andfor their position indications. Further, the IED offers onecontrol block which is intended for motor-operated control ofone earthing switch control and its position indication.Two physical binary inputs and two physical binary outputsare needed in the IED for each controllable primary devicetaken into use. Depending on the chosen standardconfiguration of the IED the number of unused binary inputsand binary outputs varies. Further, some standardconfigurations also offer optional hardware modules thatincrease the number of available binary inputs and outputs.In case the amount of available binary inputs and/or outputsof the chosen standard configuration is not sufficient, thefollowing alternatives are recommended:

To modify the chosen standard configuration of the IED inorder to release some binary inputs or binary outputs whichhave originally been configured for other purposes, whenapplicable.

To integrate an external input or output module forexample, RIO600 to the IED. The binary inputs and outputsof the external I/O module can be used for the less timecritical binary signals of the application. The integrationenables releasing of some initially reserved binary inputsand outputs of the IED in the standard configuration.

The suitability of the binary outputs of the IED which havebeen selected for controlling of primary devices should becarefully verified, for example the make and carry as well asthe breaking capacity. In case the requirements for thecontrol-circuit of the primary device are not met, the use ofexternal auxiliary relays should to be considered.The optional large graphical LCD of the IED's HMI includes asingle-line diagram (SLD) with position indication for therelevant primary devices. Interlocking schemes required by


ABB 19

the application are configured using the signal matrix or theapplication configuration functionality of PCM600.

7. MeasurementsThe IED continuously measures the high voltage (HV) side andthe low-voltage (LV) side phase currents and the neutralcurrent of the protected transformer. In addition, the IEDcalculates the symmetrical components of the currents andvoltages, maximum current demand value over a user-selectable pre-set time frame, the active and reactive power,the power factor, and the active and reactive energy values.Calculated values are also obtained from the protection andcondition monitoring functions of the IED. Depending on thestandard configuration, the IED also measures the phasevoltages, the residual voltage and the voltage sequencecomponents.For standard configuration A, B, C and D RTD/mA inputs areoffered as an option. By means of the optional RTD/mAmodule the IED can measure up to eight analog signals suchas temperature, pressure and tap changer position values viathe six RTD inputs or the two mA inputs using transducers.For standard configuration E, F, G and H RTD/mA inputs areoffered as an option. By means of these inputs the IED canmeasure up to three analog signals such as temperature,pressure and tap changer position values via the two RTDinputs or the one mA inputs using transducers.The values measured can be accessed locally via the userinterface on the IED front panel or remotely via thecommunication interface of the IED. The values can also beaccessed locally or remotely using the Web browser-baseduser interface.The IED has a load profile recorder. The load profile featurestores the historical load data captured at a periodical timeinterval (demand interval). The records are in COMTRADEformat.

8. Disturbance recorderThe IED is provided with a disturbance recorder with up to 12analog and 64 binary signal channels. The analog channelscan be set to record either the waveform or the trend of thecurrents and voltages measured.The analog channels can be set to trigger the recordingfunction when the measured value falls below, or exceeds,the set values. The binary signal channels can be set to starta recording either on the rising or the falling edge of thebinary signal or on both.By default, the binary channels are set to record external orinternal IED signals, for example, the start or trip signals ofthe IED stages, or external blocking or control signals. BinaryIED signals, such as protection start and trip signals, or anexternal IED control signal via a binary input, can be set to

trigger the recording. The recorded information is stored in anon-volatile memory and can be uploaded for subsequentfault analysis.

9. Event logTo collect sequence-of-events information, the IED has a non-volatile memory with a capacity of storing 1024 events withassociated time stamps. The non-volatile memory retains itsdata also in case the IED temporarily loses its auxiliary supply.The event log facilitates detailed pre- and post-fault analysesof feeder faults and disturbances. The increased capacity toprocess and store data and events in the IED offersprerequisites to support the growing information demand offuture network configurations.The sequence-of-events information can be accessed eitherlocally via the user interface on the IED front panel, orremotely via the communication interface of the IED. Theinformation can also be accessed using the Web browser-based user interface, either locally or remotely.

10. Recorded dataThe IED has the capacity to store the records of the 128latest fault events. The records enable the user to analyze thepower system events. Each record includes current, voltageand angle values, time stamp and so on. The fault recordingcan be triggered by the start signal or the trip signal of aprotection block, or by both. The available measurementmodes include DFT, RMS and peak-to-peak. Fault recordsstore IED measurement values at the moment when anyprotection function starts. In addition, the maximum demandcurrent with time stamp is separately recorded. By default,the records are stored in the nonvolatile memory.

11. Condition monitoringThe condition monitoring functions of the IED constantlymonitors the performance and the condition of the circuitbreaker. The monitoring comprises the spring charging time,SF6 gas pressure, the travel time and the inactivity time of thecircuit breaker.The monitoring functions provide operational circuit breakerhistory data, which can be used for scheduling preventivecircuit breaker maintenance.In addition, the IED includes a runtime counter for monitoringof how many hours a protected device has been in operationthus enabling scheduling of time-based preventivemaintenance of the device.

12. Trip-circuit supervisionThe trip-circuit supervision continuously monitors theavailability and operability of the trip circuit. It provides open-circuit monitoring both when the circuit breaker is in its


20 ABB

closed and in its open position. It also detects loss of circuit-breaker control voltage.

13. Self-supervisionThe IEDs built-in self-supervision system continuouslymonitors the state of the IED hardware and the operation ofthe IED software. Any fault or malfunction detected is usedfor alerting the operator.A permanent IED fault blocks the protection functions toprevent incorrect operation.

14. Fuse failure supervisionDepending on the chosen standard configuration, the IEDincludes fuse failure supervision functionality. The fuse failuresupervision detects failures between the voltagemeasurement circuit and the IED. The failures are detectedeither by the negative sequence-based algorithm or by thedelta voltage and delta current algorithm. Upon the detectionof a failure, the fuse failure supervision function activates analarm and blocks voltage-dependent protection functionsfrom unintended operation.

15. Access controlTo protect the IED from unauthorized access and to maintaininformation integrity, the IED is provided with a four-level, role-based authentication system with administrator-programmable individual passwords for the viewer, operator,engineer and administrator level. The access control appliesto the front-panel user interface, the Web browser-baseduser interface and PCM600.

16. Inputs and outputsThe IED is equipped with six phase-current inputs and oneneutral-current input or six phase-current inputs, one neutral-

current input, three phase-voltage inputs and one residualvoltage input. The rated level of the current inputs is 1/5 Aand selectable in the IED software. The three phase-voltageinputs and the residual-voltage input covers the ratedvoltages 60-210 V. Both phase-to-phase voltages and phase-to-earth voltages can be connected. In addition, the binaryinput thresholds 16176 V DC are selected by adjusting theIEDs parameter settings.All binary inputs and outputs contacts are freely configurablewith the signal matrix or application configuration functionalityof PCM600.As an option for standard configurations A, B, C and D, theIED offers six RTD inputs and two mA inputs. By means of theoptional RTD/mA module the IED can measure up to eightanalog signals such as temperature, pressure and tapchanger position values via the six RTD inputs or the two mAinputs using transducers. The values can, apart frommeasuring and monitoring purposes, be used for tripping andalarm purposes using the offered optional multipurposeprotection functions.As an option for standard configurations E, F, G and H, theIED offers two RTD inputs and one mA input.As an option a binary input and output module can beselected, having three high speed binary outputs (HSO),decreasing further the total operate time with typically 4-6 mscompared to the normal power outputs.Please refer to the Input/output overview table and theterminal diagrams for more detailed information about theinputs and outputs.


ABB 21

Table 4. Input/output overview

Std. conf. Order code digit Analog channels Binary channels 5-6 7-8 CT VT BI BO RTD mA

ABCD

BABB 7 - 14 4 PO + 9 SO - -

FF 7 - 14 4 PO + 5 SO+ 3 HSO- -

BGBA 7 - 8 4 PO + 6 SO 6 2

FD 7 - 8 4 PO + 2 SO+ 3 HSO6 2

EFGH

BCAD 7 5 12 4 PO + 6 SO - -

FE 7 5 12 4 PO + 2 SO+ 3 HSO- -

BEBA 7 5 8 4 PO + 6 SO 2 1

FD 7 5 8 4 PO + 2 SO+ 3 HSO2 1

17. Station communicationThe IED supports a range of communication protocolsincluding IEC 61850, IEC 61850-9-2 LE, Modbus andDNP3. Profibus DPV1 communication protocol is supportedwith using the protocol converter SPA-ZC 302. Operationalinformation and controls are available through theseprotocols. However, some communication functionality, forexample, horizontal communication between the IEDs, is onlyenabled by the IEC 61850 communication protocol.The IEC 61850 communication implementation supportsmonitoring and control functions. Additionally, parametersettings, disturbance recordings and fault records can beaccessed using the IEC 61850 protocol. Disturbancerecordings are available to any Ethernet-based application inthe standard COMTRADE file format. The IED supportssimultaneous event reporting to five different clients on thestation bus. The IED can exchange signals with other IEDsusing the IEC 61860 protocol.The IED can send binary and analog signals to other IEDs (socalled horizontal communication) using the IEC 61850-8-1GOOSE (Generic Object Oriented Substation Event) profile.Binary GOOSE messaging can, for example, be employed forprotection and interlocking-based protection schemes. TheIED meets the GOOSE performance requirements for trippingapplications in distribution substations, as defined by the IEC61850 standard. The IED also supports the sending andreceiving of analog values using GOOSE messaging. AnalogGOOSE messaging enables easy transfer of analogmeasurement values over the station bus, thus facilitating forexample sharing of RTD input values, such as surroundingtemperature values, to other IED applications.

The IED also supports IEC 61850 process bus with sampledvalues of analog phase voltages. With this functionality thegalvanic interpanel wiring can be replaced with Ethernetcommunication. The measured values are transferred assampled values using IEC 61850-9-2 LE protocol. Theintended application for sampled values shares the phasevoltages to other 615 series IEDs, having phase voltagebased functions and 9-2 support. 615 IEDs with process busbased applications use IEEE 1588 for high accuracy timesynchronization.For redundant Ethernet communication, the IED offers eithertwo optical or two galvanic Ethernet network interfaces. Athird port with galvanic Ethernet network interface is alsoavailable. The third Ethernet interface provides connectivityfor any other Ethernet device to an IEC 61850 station businside a switchgear bay, for example connection of a RemoteI/O. The high accuracy time synchronization method IEEE1588 support is included in all variants that have a redundantEthernet communication module.Ethernet network redundancy can be achieved using the high-availability seamless redundancy (HSR) protocol or theparallel redundancy protocol (PRP) or a with self-healing ringusing RSTP in managed switches. Ethernet redundancy canbe applied to Ethernet-based IEC 61850, Modbus and DNP3protocols.The IEC 61850 standard specifies network redundancy whichimproves the system availability for the substationcommunication. The network redundancy is based on twocomplementary protocols defined in the IEC 62439-3standard: PRP and HSR protocols. Both the protocols areable to overcome a failure of a link or switch with a zero


22 ABB

switch-over time. In both the protocols, each network nodehas two identical Ethernet ports dedicated for one networkconnection. The protocols rely on the duplication of alltransmitted information and provide a zero switch-over time ifthe links or switches fail, thus fulfilling all the stringent real-time requirements of substation automation.

In PRP, each network node is attached to two independentnetworks operated in parallel. The networks are completelyseparated to ensure failure independence and can havedifferent topologies. The networks operate in parallel, thusproviding zero-time recovery and continuous checking ofredundancy to avoid failures.

Ethernet switchIEC 61850 PRPEthernet switch

REF615 REF620 RET620 REM620 REF615

SCADACOM600

GUID-334D26B1-C3BD-47B6-BD9D-2301190A5E9D V1 EN

Figure 14. Parallel redundancy protocol (PRP) solution

HSR applies the PRP principle of parallel operation to a singlering. For each message sent, the node sends two frames,one through each port. Both the frames circulate in oppositedirections over the ring. Every node forwards the frames itreceives from one port to another to reach the next node.When the originating sender node receives the frame it sent,

the sender node discards the frame to avoid loops. The HSRring with 615 series IEDs supports the connection of up tothirty IEDs. If more than 30 IEDs are to be connected, it isrecommended to split the network into several rings toguarantee the performance for real-time applications.


ABB 23

Ethernet switch

RedundancyBox

IEC 61850 HSR

RedundancyBox

RedundancyBox

REF615 REF620 RET620 REM620 REF615

SCADA Devices not supporting HSRCOM600

GUID-7996332D-7FC8-49F3-A4FE-FB4ABB730405 V1 EN

Figure 15. High availability seamless redundancy (HSR) solution

The choice between the HSR and PRP redundancy protocolsdepends on the required functionality, cost and complexity.The self-healing Ethernet ring solution enables a cost-efficientcommunication ring controlled by a managed switch withstandard Rapid Spanning Tree Protocol (RSTP) support. Themanaged switch controls the consistency of the loop, routesthe data and corrects the data flow in case of a

communication switch-over. The IEDs in the ring topology actas unmanaged switches forwarding unrelated data traffic. TheEthernet ring solution supports the connection of up to thirty615 series IEDs. If more than 30 IEDs are to be connected, itis recommended to split the network into several rings. Theself-healing Ethernet ring solution avoids single point of failureconcerns and improves the reliability of the communication.


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Managed Ethernet switchwith RSTP support

Managed Ethernet switchwith RSTP support

Client BClient A

Network ANetwork B

GUID-AB81C355-EF5D-4658-8AE0-01DC076E519C V4 EN

Figure 16. Self-healing Ethernet ring solution

All communication connectors, except for the front portconnector, are placed on integrated optional communicationmodules. The IED can be connected to Ethernet-basedcommunication systems via the RJ-45 connector (100Base-TX) or the fibre-optic LC connector (100Base-FX). Ifconnection to a serial bus is required, the 10-pin RS-485screw-terminal or the fibre-optic ST connector can be used.Modbus implementation supports RTU, ASCII and TCPmodes. Besides standard Modbus functionality, the IEDsupports retrieval of time-stamped events, changing theactive setting group and uploading of the latest fault records.If a Modbus TCP connection is used, five clients can beconnected to the IED simultaneously. Further, Modbus serialand Modbus TCP can be used in parallel, and if required bothIEC 61850 and Modbus protocols can be run simultaneously.The IEC 60870-5-103 implementation supports two parallelserial bus connections to two different masters. Besidesbasic standard functionality, the IED supports changing of theactive setting group and uploading of disturbance recordingsin IEC 60870-5-103 format. Further, IEC 60870-5-103 canbe used at the same time with the IEC 61850 protocol.DNP3 supports both serial and TCP modes for connection upto five masters. Changing of the active setting and readingfault records are supported. DNP serial and DNP TCP can be

used in parallel. If required, both IEC 61850 and DNPprotocols can be run simultaneously.615 series supports Profibus DPV1 with support of SPA-ZC302 Profibus adapter. If Profibus is required the IED must beordered with Modbus serial options. Modbus implementationincludes SPA-protocol emulation functionality. Thisfunctionality enables connection to SPA-ZC 302.When the IED uses the RS-485 bus for the serialcommunication, both two- and four wire connections aresupported. Termination and pull-up/down resistors can beconfigured with jumpers on the communication card soexternal resistors are not needed.The IED supports the following time synchronization methodswith a time-stamping resolution of 1 ms.Ethernet-based SNTP (Simple Network Time Protocol)

With special time synchronization wiring IRIG-B (Inter-Range Instrumentation Group - Time Code

Format B)


ABB 25

The IED supports the following high accuracy timesynchronization method with a time-stamping resolution of 4s required especially in process bus applications. PTP (IEEE 1588) v2 with Power Profile

The IEEE 1588 support is included in all variants having aredundant Ethernet communication module.IEEE 1588 v2 features Ordinary Clock with Best Master Clock algorithm One-step Transparent Clock for Ethernet ring topology 1588 v2 Power Profile Receive (slave): 1-step/2-step Transmit (master): 1-step Layer 2 mapping Peer to peer delay calculation Multicast operation

Required accuracy of grandmaster clock is +/-1 s. IED canwork as master clock per BMC algorithm if externalgrandmaster clock is not available for short term.The IEEE 1588 support is included in all variants having aredundant Ethernet communication module.In addition, the IED supports time synchronization via thefollowing serial communication protocols. Modbus DNP3 IEC 60870-5-103

Table 5. Supported station communication interfaces and protocols

Interfaces/Protocols Ethernet Serial100BASE-TX RJ-45 100BASE-FX LC RS-232/RS-485 Fibre-optic ST

IEC 61850-8-1 - -IEC 61850-9-2 LE - -MODBUS RTU/ASCII - - MODBUS TCP/IP - -DNP3 (serial) - - DNP3 TCP/IP - -IEC 60870-5-103 - -

= Supported


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18. Technical data

Table 6. Dimensions

Description Value Width frame 177 mm

case 164 mmHeight frame 177 mm (4U)

case 160 mmDepth 201 mm (153 + 48 mm)Weight complete IED 4.1 kg

plug-in unit only 2.1 kg

Table 7. Power supply

Description Type 1 Type 2Nominal auxiliary voltage Un 100, 110, 120, 220, 240 V AC, 50 and 60 Hz 24, 30, 48, 60 V DC

48, 60, 110, 125, 220, 250 V DCMaximum interruption time in the auxiliaryDC voltage without resetting the IED

50 ms at Un

Auxiliary voltage variation 38...110% of Un (38...264 V AC) 50...120% of Un (12...72 V DC)80...120% of Un (38.4...300 V DC)

Start-up threshold 19.2 V DC (24 V DC * 80%)Burden of auxiliary voltage supply underquiescent (Pq)/operating condition

DC < 12.0 W (nominal)/< 18.0 W (max)AC< 16.0 W (nominal)/< 21.0W (max)

DC < 12.0 W (nominal)/< 18.0 W (max)

Ripple in the DC auxiliary voltage Max 15% of the DC value (at frequency of 100 Hz)Fuse type T4A/250 V

Table 8. Energizing inputs

Description ValueRated frequency 50/60 Hz 5 HzCurrent inputs Rated current, In 1/5 A1)

Thermal withstand capability: Continuously 20 A For 1 s 500 ADynamic current withstand: Half-wave value 1250 AInput impedance

Table 9. Binary inputs

Description ValueOperating range 20% of the rated voltageRated voltage 24...250 V DCCurrent drain 1.6...1.9 mAPower consumption 31.0...570.0 mWThreshold voltage 16...176 V DCReaction time

Table 12. Signal outputs and IRF output

Description ValueRated voltage 250 V AC/DCContinuous contact carry 5 AMake and carry for 3.0 s 10 AMake and carry 0.5 s 15 ABreaking capacity when the control-circuit time constant L/R

Table 15. High-speed output HSO with BIO0007

Description ValueRated voltage 250 V AC/DCContinuous contact carry 6 AMake and carry for 3.0 s 15 AMake and carry for 0.5 s 30 ABreaking capacity when the control-circuit time constant L/R

Table 20. Degree of protection of flush-mounted IED

Description ValueFront side IP 54Rear side, connection terminals IP 20

Table 21. Environmental conditions

Description ValueOperating temperature range -25...+55C (continuous)Short-time service temperature range -40...+85C (

Table 22. Electromagnetic compatibility tests

Description Type test value Reference1 MHz/100 kHz burst disturbance test IEC 61000-4-18

IEC 60255-22-1, class IIIIEEE C37.90.1-2002

Common mode 2.5 kV Differential mode 2.5 kV 3 MHz, 10 MHz and 30 MHz burst disturbancetest

IEC 61000-4-18IEC 60255-22-1, class III

Common mode 2.5 kV Electrostatic discharge test IEC 61000-4-2

IEC 60255-22-2IEEE C37.90.3-2001

Contact discharge 8 kV Air discharge 15 kV Radio frequency interference test 10 V (rms)

f = 150 kHz...80 MHzIEC 61000-4-6IEC 60255-22-6, class III

10 V/m (rms)f = 80...2700 MHz

IEC 61000-4-3IEC 60255-22-3, class III

10 V/mf = 900 MHz

ENV 50204IEC 60255-22-3, class III

20 V/m (rms)f = 80...1000 MHz

IEEE C37.90.2-2004

Fast transient disturbance test IEC 61000-4-4IEC 60255-22-4IEEE C37.90.1-2002

All ports 4 kV Surge immunity test IEC 61000-4-5

IEC 60255-22-5 Communication 1 kV, line-to-earth Other ports 4 kV, line-to-earth

2 kV, line-to-line

Power frequency (50 Hz) magnetic fieldimmunity test

IEC 61000-4-8

Continuous 1...3 s

300 A/m1000 A/m

Pulse magnetic field immunity test 1000 A/m6.4/16 s

IEC 61000-4-9

Damped oscillatory magnetic field immunity test IEC 61000-4-10 2 s 100 A/m 1 MHz 400 transients/s Voltage dips and short interruptions 30%/10 ms

60%/100 ms60%/1000 ms>95%/5000 ms

IEC 61000-4-11


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Table 22. Electromagnetic compatibility tests, continuedDescription Type test value ReferencePower frequency immunity test Binary inputs only IEC 61000-4-16

IEC 60255-22-7, class A Common mode 300 V rms Differential mode 150 V rms Conducted common mode disturbances 15 Hz...150 kHz

Test level 3 (10/1/10 V rms)IEC 61000-4-16

Emission tests EN 55011, class AIEC 60255-25

Conducted 0.15...0.50 MHz

Table 25. Environmental tests

Description Type test value ReferenceDry heat test 96 h at +55C

16 h at +85C1)IEC 60068-2-2

Dry cold test 96 h at -25C 16 h at -40C

IEC 60068-2-1

Damp heat test 6 cycles (12 h + 12 h) at +25C+55C,humidity >93%

IEC 60068-2-30

Change of temperature test 5 cycles (3 h + 3 h)at -25C...+55C

IEC60068-2-14

Storage test 96 h at -40C 96 h at +85C

IEC 60068-2-1IEC 60068-2-2

1) For IEDs with an LC communication interface the maximum operating temperature is +70oC

Table 26. Product safety

Description ReferenceLV directive 2006/95/ECStandard EN 60255-27 (2005)

EN 60255-1 (2009)

Table 27. EMC compliance

Description ReferenceEMC directive 2004/108/ECStandard EN 50263 (2000)

EN 60255-26 (2007)

Table 28. RoHS compliance

DescriptionComplies with RoHS directive 2002/95/EC


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Protection functions

Table 29. Three-phase non-directional overcurrent protection (PHxPTOC)

Characteristic ValueOperation accuracy Depending on the frequency of the measured current: fn 2 Hz

PHLPTOC 1.5% of the set value or 0.002 InPHHPTOCandPHIPTOC

1.5% of set value or 0.002 In(at currents in the range of 0.110 In)5.0% of the set value(at currents in the range of 1040 In)

Start time 1)2) Minimum Typical MaximumPHIPTOC:IFault = 2 set Start valueIFault = 10 set Start value

16 ms 11 ms

19 ms 12 ms

23 ms 14 ms

PHHPTOC and PHLPTOC:IFault = 2 x set Start value

23 ms

26 ms

29 ms

Reset time Typically 40 msReset ratio Typically 0.96Retardation time

Table 30. Three-phase non-directional overcurrent protection (PHxPTOC) main settings

Parameter Function Value (Range) StepStart Value PHLPTOC 0.05...5.00 In 0.01

PHHPTOC 0.10...40.00 In 0.01PHIPTOC 1.00...40.00 In 0.01

Time multiplier PHLPTOC 0.05...15.00 0.01PHHPTOC 0.05...15.00 0.01

Operate delay time PHLPTOC 40...200000 ms 10PHHPTOC 40...200000 ms 10PHIPTOC 20...200000 ms 10

Operating curve type1) PHLPTOC Definite or inverse timeCurve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19

PHHPTOC Definite or inverse timeCurve type: 1, 3, 5, 9, 10, 12, 15, 17

PHIPTOC Definite time1) For further reference, see Operation characteristics table

Table 31. Non-directional earth-fault protection (EFxPTOC)


EFLPTOC 1.5% of the set value or 0.002 InEFHPTOCandEFIPTOC

1.5% of set value or 0.002 In(at currents in the range of 0.110 In)5.0% of the set value(at currents in the range of 1040 In)

Start time 1)2) Minimum Typical MaximumEFIPTOC:IFault = 2 set Start valueIFault = 10 set Start value

16 ms11 ms

19 ms12 ms

23 ms14 ms

EFHPTOC and EFLPTOC:IFault = 2 set Start value

23 ms

26 ms

29 ms


Table 32. Non-directional earth-fault protection (EFxPTOC) main settings

Parameter Function Value (Range) StepStart value EFLPTOC 0.010...5.000 In 0.005

EFHPTOC 0.10...40.00 In 0.01EFIPTOC 1.00...40.00 In 0.01

Time multiplier EFLPTOC 0.05...15.00 0.01EFHPTOC 0.05...15.00 0.01

Operate delay time EFLPTOC 40...200000 ms 10EFHPTOC 40...200000 ms 10EFIPTOC 20...200000 ms 10

Operating curve type1) EFLPTOC Definite or inverse timeCurve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19

EFHPTOC Definite or inverse timeCurve type: 1, 3, 5, 9, 10, 12, 15, 17

EFIPTOC Definite time1) For further reference, see Operation characteristics table

Table 33. Negative phase-sequence overcurrent protection (NSPTOC)


1.5% of the set value or 0.002 InStart time 1)2) Minimum Typical Maximum

IFault = 2 set Start valueIFault = 10 set Start value

23 ms15 ms

26 ms18 ms

28 ms20ms


Table 35. Residual overvoltage protection (ROVPTOV)

Characteristic ValueOperation accuracy Depending on the frequency of the voltage measured: fn 2 Hz

1.5% of the set value or 0.002 UnStart time1)2) Minimum Typical Maximum

UFault = 1.1 set Start value 48 ms 51 ms 54 msReset time Typically 40 msReset ratio Typically 0.96Retardation time

Table 38. Three-phase undervoltage protection (PHPTUV) main settings

Parameter Function Value (Range) StepStart value PHPTUV 0.05...1.20 Un 0.01Time multiplier PHPTUV 0.05...15.00 0.01Operate delay time PHPTUV 60...300000 ms 10Operating curve type1) PHPTUV Definite or inverse time

Curve type: 5, 15, 21, 22, 231) For further reference, see Operation characteristics table

Table 39. Three-phase overvoltage protection (PHPTOV)

Characteristic ValueOperation accuracy Depending on the frequency of the voltage measured: fn 2 Hz

1.5% of the set value or 0.002 UnStart time1)2) Minimum Typical Maximum

UFault = 1.1 set Start value 23 ms 27 ms 31 msReset time Typically 40 msReset ratio Depends of the set Relative hysteresisRetardation time 1.2 x Operate level temperature


ABB 39

Table 42. Thermal overload for protection, two time constants (T2PTTR) main settings

Parameter Function Value (Range) StepTemperature rise T2PTTR 0.0...200.0oC 0.1Max temperature T2PTTR 0.0...200.0oC 0.1Operate temperature T2PTTR 80.0...120.0 % 0.1Weighting factor p T2PTTR 0.00...1.00 0.01Short time constant T2PTTR 6...60000 s 1Current reference T2PTTR 0.05...4.00 x In 0.01Operation T2PTTR Off

On-

Table 43. Transformer differential protection of two-winding transformers (TR2PTDF)


3.0% of the set value or 0.002 InStart time1)2) Minimum Typical Maximum

Low stageHigh stage

36 ms21 ms

41 ms22 ms

46 ms24 ms

Reset time Typically 40 msReset ratio Typically 0.96Suppression of harmonics DFT: -50 dB at f = n fn, where n = 2, 3, 4, 5,

1) Current before fault = 0.0, fn = 50 Hz, results based on statistical distribution of 1000 measurements2) Includes the delay of the output contact. When differential current = 2 set operate value and fn = 50 Hz.


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Table 44. Stabilized differential protection for two-winding transformers (TR2PTDF) main settings

Parameter Function Value (Range) StepRestraint mode TR2PTDF 2.h & 5.h & wav

Waveform2.h & waveform5.h & waveform

-

High operate value TR2PTDF 500...3000 % 10Low operate value TR2PTDF 5...50 % 1Slope section 2 TR2PTDF 10...50 % 1End section 2 TR2PTDF 100...500 % 1Start value 2.H TR2PTDF 7...20 % 1Start value 5.H TR2PTDF 10...50 % 1Operation TR2PTDF Off

On-

Winding 1 type TR2PTDF YYNDZZN

-

Winding 2 type TR2PTDF YYNDZZN

-

Zro A elimination TR2PTDF Not eliminatedWinding 1Winding 2Winding 1 and 2

-

Table 45. Numerical stabilized low impedance restricted earth-fault protection (LREFPNDF)


2.5% of the set value or 0.002 x InStart time1)2) Minimum Typical Maximum

IFault = 2.0 set Operate value 37 ms 41 ms 45 msReset time Typically 40 msReset ratio Typically 0.96Retardation time

Table 46. Stabilized restricted earth-fault protection (LREFPNDF) main settings

Parameter Function Value (Range) StepOperate value LREFPNDF 5...50 % 1Restraint mode LREFPNDF None

2nd harmonic-

Start value 2.H LREFPNDF 10...50 % 1Minimum operate time LREFPNDF 40...300000 ms 1Operation LREFPNDF Off

On-

Table 47. High-impedance based restricted earth-fault protection (HREFPDIF)

Characteristic ValueOperation accuracy At the frequency f = fn

1.5% of the set value or 0.002 InStart time1)2) IFault = 2.0 set Operate value

IFault = 10.0 set Operate valueTypical 22 ms (5 ms)Typical 15 ms (5 ms)

Reset time < 60 msReset ratio Typical 0.96Retardation time < 60 msOperate time accuracy in definite time mode 1.0% of the set value or 20 ms

1) Current before fault = 0.0 In, fn = 50 Hz2) Includes the delay of the signal output contact

Table 48. High-impedance based restricted earth-fault protection (HREFPDIF) main settings

Parameter Function Value (Range) StepOperate value HREFPDIF 1.0...50.0 % 0.1Minimum operate time HREFPDIF 40...300000 ms 1Operation HREFPDIF Off

On-

Table 49. Circuit breaker failure protection (CCBRBRF)

Characteristic ValueOperation accuracy Depending on the frequency of the measured current:

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RET615 - Transformadores Diferencial