Functions - Arc protection - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Grid automation - Busbar differential protection (high impedance) - Line differential protection - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Interconnection protection - Generator protection - Power management/Load shedding - Datasheet - REX615 Protection and control - Relion Protection and Control - PCL1 - IEC - ANSI

REX615 Datasheet

Function description

IEC 60617

ANSI

IEC 61850

Instances

Application package

Protection

Line differential protection with inzone power transformer

3Id/I>

87L

LNPLDF

1

APP6

Binary signal transfer

BST

BST

BSTGAPC

1

APP6

Switch-onto-fault protection

CVPSOF

SOTF

CVPSOF

1

APP1

Three-phase non-directional overcurrent protection, low stage

3I>

51P-1

PHLPTOC

3

APP1

Three-phase non-directional overcurrent protection, high stage

3I>>

51P-2

PHHPTOC

3

APP1

Three-phase non-directional overcurrent protection, instantaneous or definite time stage

3I>>>

50P/51P

PHIPTOC

3

APP1

Three-phase non-directional long time overcurrent protection

3I>

51LT

PHLTPTOC

1

APP1

Three-phase non-directional overcurrent protection, instantaneous only stage

3I>>>>

50P

PHIPIOC

3

APP1

Three-independent-phase non-directional overcurrent protection, low stage

3I_3>

51P_3-1

PH3LPTOC

2

APP1

Three-independent-phase non-directional overcurrent protection, high stage

3I_3>>

51P_3-2

PH3HPTOC

2

APP1

Three-independent-phase non-directional overcurrent protection, instantaneous or definite time stage

3I_3>>>

50P_3/51P_3

PH3IPTOC

2

APP1

Three-phase directional overcurrent protection, low stage

3I> ->

67P/51P-1

DPHLPDOC

2

APP3, APP6, APP8, ADD1, APP10

Three-phase directional overcurrent protection, high stage

3I>> ->

67P/51P-2

DPHHPDOC

2

APP3, APP6, APP8, ADD1, APP10

Directional three-independent-phase directional overcurrent protection, low stage

3I_3> ->

67P_3/51P_3-1

DPH3LPDOC

2

APP3, APP6, APP8, ADD1, APP10

Directional three-independent-phase directional overcurrent protection, high stage

3I_3>> ->

67P_3/51P_3-2

DPH3HPDOC

2

APP3, APP6, APP8, ADD1, APP10

Non-directional earth-fault protection, low stage

Io>

51G/51N-1

EFLPTOC

3

APP1

Non-directional earth-fault protection, high stage

Io>>

51G/51N-2

EFHPTOC

3

APP1

Non-directional earth-fault protection, instantaneous stage

Io>>>

50G/N, 51G/N

EFIPTOC

3

APP1

Non-directional earth-fault protection, instantaneous only stage

Io>>>>

50G/50N

EFIPIOC

3

APP1

Directional earth-fault protection, low stage

Io> ->

67G/N-1 51G/N-1

DEFLPDEF

3

APP1

Directional earth-fault protection, high stage

Io>> ->

67G/N-1 51G/N-2

DEFHPDEF

2

APP1

Three-phase power directional element

I1 ->

67P-TC

DPSRDIR

2

APP3, APP8, ADD1, APP10, APP12

Neutral power directional element

I2 ->, Io ->

67N-TC

DNZSRDIR

2

APP2, APP3

Admittance-based earth-fault protection

Yo> ->

21NY

EFPADM

3

APP2

Multifrequency admittance-based earth-fault protection

Io> -> Y

67NYH

MFADPSDE

3

APP2

Wattmetric-based earth-fault protection

Po> ->

32N

WPWDE

3

APP2

Transient/intermittent earth-fault protection

Io> -> IEF

67NTEF/NIEF

INTRPTEF

1

APP2

Harmonics-based earth-fault protection

Io>HA

51NH

HAEFPTOC

1

APP2

Touch voltage based earth-fault current protection

IF>/UT>

46SNQ/59N

IFPTOC

3

APP2

Negative-sequence overcurrent protection

I2>

46

NSPTOC

3

APP1

Directional negative-sequence overcurrent protection

I2> ->

67Q

DNSPDOC

2

APP3, APP6, APP10

Phase discontinuity protection

I2/I1>

46PD

PDNSPTOC

1

APP1

Residual overvoltage protection

Uo>

59G/59N

ROVPTOV

4

APP1, APP5

Three-phase undervoltage protection

3U<

27

PHPTUV

4

APP5

Single-phase undervoltage protection

U_A<

27_A

PHAPTUV

1

APP5

Three-phase overvoltage variation protection

3Urms>

59.S1

PHVPTOV

2

APP5, APP8

Three-phase overvoltage protection

3U>

59

PHPTOV

4

APP5

Single-phase overvoltage protection

U_A>

59_A

PHAPTOV

1

APP5

Positive-sequence overvoltage protection

U1>

59PS

PSPTOV

2

APP5

Positive-sequence undervoltage protection

U1<

27PS

PSPTUV

2

APP5

Negative-sequence overvoltage protection

U2>

59NS

NSPTOV

4

APP5

Frequency protection

f>/f<, df/dt

81

FRPFRQ

10

APP5

Three-phase voltage-dependent overcurrent protection

3I(U)>

51V

PHPVOC

2

APP3, APP8, ADD1, APP10

Overexcitation protection

U/f>

24

OEPVPH

2

ADD1, APP10

Three-phase thermal protection for feeders, cables and distribution transformers

3Ith>F

49F

T1PTTR

1

APP1

Three-phase thermal overload protection, two time constants

3Ith>T/G/C

49T/G/C

T2PTTR

1

APP1

Three-phase overload protection for shunt capacitor banks

3I> 3I<

51, 37, 86C

COLPTOC

1

APP7

Current unbalance protection for shunt capacitor banks

dI>C

60N

CUBPTOC

1

APP7

Three-phase current unbalance protection for shunt capacitor banks

3dI>C

60P

HCUBPTOC

1

APP7

Shunt capacitor bank switching resonance protection, current based

TD>

55ITHD

SRCPTOC

1

APP7

Compensated neutral unbalance voltage protection

CNU>

59NU

CNUPTOV

1

APP7

Low-voltage ride-through protection

U<RT

27RT

LVRTPTUV

3

APP8

Voltage vector shift protection

VS

78VS

VVSPPAM

2

APP8

Directional reactive power undervoltage protection

Q> ->, 3U<

32Q, 27

DQPTUV

2

APP8

Reverse power/directional overpower protection

P>/Q>

32R/32O

DOPPDPR

3

APP3, APP8, ADD1, ADD2, APP10

Underpower protection

P<

32U

DUPPDPR

2

APP3, ADD1,ADD2, APP10

Three-phase underimpedance protection

Z<G

21G

UZPDIS

3

ADD1, APP10

Directional negative sequence impedance protection

Z2 ->

Z2Q

DNZPDIS

2

APP3, APP6, APP10

Three-phase underexcitation protection

X<

40

UEXPDIS

2

ADD1

Third harmonic-based stator earth-fault protection

dUo>/Uo3H

64TN

H3EFPSEF

1

ADD1

Rotor earth-fault protection (injection method)

Io>R

64R

MREFPTOC

1

ADD1

Thermal overload protection for rotors

3Ith>R

49R

RPTTR

1

ADD1,ADD2

High-impedance or flux-balance based differential protection

3dIHi>M

87HIM

MHZPDIF

1

ADD1, ADD2

Out-of-step protection with double blinders

OOS

78PS

OOSRPSB

1

ADD1

Negative-sequence overcurrent protection for machines

I2>M

46M

MNSPTOC

2

APP9

Loss of phase (undercurrent)

3I<

37

PHPTUC

3

APP1

Loss of load supervision

3I<

37

LOFLPTUC

2

APP9

Motor load jam protection

Ist>

50TDJAM

JAMPTOC

2

APP9

Motor start-up supervision

Is2t n<

49, 66, 48, 50TDLR

STTPMSU

1

APP9

Motor start counter

n<

66

MSCPMRI

1

APP9

Phase reversal protection

I2>>

46R

PREVPTOC

1

APP9

Thermal overload protection for motors

3Ith>M

49M

MPTTR

1

APP9

Stabilized and instantaneous differential protection for machines

3dl>M/G

87M/87G

MPDIF

1

ADD1, ADD2

Underpower factor protection

PF<

55U

MPUPF

2

APP3, APP8, ADD1, APP10

Stabilized and instantaneous differential protection for two-winding transformers

3dI>T

87T

TR2PTDF

1

APP10

Numerical stabilized low-impedance restricted earth-fault protection

dIoLo>

87NLI

LREFPNDF

2

APP1

High-impedance based restricted earth-fault protection

dIoHi>

87NHI

HREFPDIF

2

APP1

High-impedance differential protection for phase A

dHi_A>

87_A

HIAPDIF

2

ADD1,ADD2, APP10, APP11

High-impedance differential protection for phase B

dHi_B>

87_B

HIBPDIF

2

ADD1, ADD2, APP10, APP11

High-impedance differential protection for phase C

dHi_C>

87_C

HICPDIF

2

ADD1, ADD2, APP10, APP11

Circuit breaker failure protection

3I>/Io>BF

50BF

CCBRBRF

3

APP1

Three-phase inrush detector

3I2f>

68HB

INRPHAR

2

APP1

Master trip

Master Trip

94/86

TRPPTRC

6

Base

Arc protection

ARC

AFD

ARCSARC

3

Base

High-impedance fault detection

HIF

HIZ

PHIZ

1

APP2

Fault locator

FLOC

FLOC

SCEFRFLO

1

APP4

Load-shedding and restoration

UFLS/R

81LSH

LSHDPFRQ

10

APP5

Multipurpose protection

MAP

MAP

MAPGAPC

20

Base

Accidental energization protection

U<, I>

27/50

GAEPVOC

1

ADD1

Load blinder

LB

21LB

LBRDOB

2

APP3, APP6

Cable Fault Detection

CFD

CFD

RCFD

1

APP2, APP3

Control

Circuit-breaker control

I <-> O CB

52

CBXCBR

3

Base

Disconnector control

I <-> O DCC

29DS

DCXSWI

4

Base

Earthing switch control

I <-> O ESC

29GS

ESXSWI

3

Base

Disconnector position indication

I <-> O DC

29DS

DCSXSWI

4

Base

Earthing switch position indication

I <-> O ES

29GS

ESSXSWI

3

Base

Emergency start-up

ESTART

EST, 62

ESMGAPC

1

APP9

Autoreclosing

O -> I

79

DARREC

2

APP1

Circuit breaker uncorresponding position start-up

CBUPS

52OU

UPCALH

3

Base

Synchronism and energizing check

SYNC

25

SECRSYN

2

APP5

Tap changer control with voltage regulator, legacy

COLTC

90V

OLATCC

1

APP12

Tap changer control with voltage regulator

COLTC

90V

OL5ATCC

1

APP12

Transformer data combiner

OLGAPC

OLGAPC

OLGAPC

5

APP12

Tap changer position indication

TPOSM

84T

TPOSYLTC

1

APP10, APP12

Condition Monitoring and Supervision

Circuit-breaker condition monitoring

CBCM

52CM

SSCBR

3

Base

Motor controlled earthing switch and disconnector supervision

ESDCCM

29CM

ESDCSSWI

7

Base

Hot-spot and insulation ageing rate monitoring for transformers

3Ihp>T

26/49HS

HSARSPTR

1

APP10

Trip circuit supervision

TCS

TCM

TCSSCBR

3

Base

Current circuit supervision

MCS 3I

CCM

CCSPVC

2

Base

Current circuit supervision for transformers

MCS 3I, I2

CCM 3I, I2

CTSRCTF

1

APP10

Current circuit supervision for line differential

MCS_L 3I, I2

CCM_L 3I, I2

LNCTSRCTF

1

APP6

Current transformer supervision for high-impedance protection scheme for phase A

MCS I_A

CCM_A

HZCCASPVC

2

APP11

Current transformer supervision for high-impedance protection scheme for phase B

MCS I_B

CCM_B

HZCCBSPVC

2

APP11

Current transformer supervision for high-impedance protection scheme for phase C

MCS I_C

CCM_C

HZCCCSPVC

2

APP11

Fuse failure supervision

FUSEF

VCM, 60

SEQSPVC

2

Base

Protection communication supervision

PCS

PCS

PCSITPC

1

APP6

Runtime counter for machines and devices

OPTS

OPTM

MDSOPT

2

Base

Three-phase remanent undervoltage supervision

3U<R

27R

MSVPR

1

APP5

Voltage presence

PHSVPR

PHSVPR

PHSVPR

2

APP5

Measurement

Three-phase current measurement

3I

IA, IB, IC

CMMXU

4

Base

Sequence current measurement

I1, I2, I0

I1, I2, I0

CSMSQI

4

Base

Residual current measurement

Io

IG

RESCMMXU

4

Base

Three-phase voltage measurement

3U

VA, VB, VC

VMMXU

4

Base

Single-phase voltage measurement

U_A

V_A

VAMMXU

2

Base

Phase voltage measurement

3UL

VL

VPHMMXU

2

Base

Residual voltage measurement

Uo

VG/VN

RESVMMXU

4

Base

Sequence voltage measurement

U1, U2, U0

V1, V2, V0

VSMSQI

4

Base

Three-phase power and energy measurement

P, E

P, E

PEMMXU

3

Base

Single-phase power and energy measurement

P_A, E_A

P_A, E_A

SPEMMXU

1

Base

Frequency measurement

f

f

FMMXU

3

Base

Power Quality

Current total demand, harmonic distortion, DC component (TDD, THD, DC) and individual harmonics

PQM3IH

PQM ITHD, IDC

CHMHAI

2

Base

Voltage total harmonic distortion, DC component (THD, DC) and individual harmonics

PQM3VH

PQM VTHD, VDC

VHMHAI

2

Base

Voltage variation

PQMU

PQMV SWE, SAG, INT

PHQVVR

2

Base

Voltage unbalance

PQUUB

PQMV UB

VSQVUB

2

Base

Programmable LED indication and push buttons

Individual programmable LED control

LED

LED

LED

11

Base

Standard: Programmable buttons (4 buttons)

FKEY

FKEY

FKEY4GGIO

1

Base

Wide: Programmable buttons (16 buttons)

FKEY

FKEY

FKEYGGIO

1

Base

Logging functions

Disturbance recorder (common functionality)

DR

DFR

RDRE

1

Base

Disturbance recorder, analog channels 1...12

A1RADR

A1RADR

A1RADR

1

Base

Disturbance recorder, binary channels 1...32

B1RBDR

B1RBDR

B1RBDR

1

Base

Disturbance recorder, binary channels 33...64

B2RBDR

B2RBDR

B2RBDR

1

Base

Fault recorder

FAULTREC

FR

FLTRFRC

1

Base

Sequence event recorder

SER

SER

SER

1

Base

Load profile recorder

LOADPROF

LOADPROF

LDPRLRC

1

Base

Communication

IEC 61850-1 MMS

MMS

MMS

MMSLPRT

1

IEC 61850-1 GOOSE

GSE

GSE

GSELPRT

1

SMV stream receiver (IEC 61850-9-2LE)

SMVRCV

SMVRCV

SMVRCV

2

SMV stream sender (IEC 61850-9-2LE)

SMVSENDER

SMVSENDER

SMVSENDER

1

IEC 60870-5-103 protocol

I3C

I3C

I3CLPRT

2

IEC 60870-5-104 protocol

I5C

I5C

I5CLPRT

5

DNP3 protocol

DNP 3.0

DNP 3.0

DNPLPRT

5

Modbus protocol

MBS

MBS

MBSLPRT

5

IEC 61850 Edition 2.1 and Edition 1

Redundancy protocols PRP/HSR

Time synchronization for non-redundant and redundant protocols: SNTP, IRIG-B, PTP IEEE 1588 (redundant only)

Ethernet communication with dual IP address