Functions, codes and symbols - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - 1.2 - IEC - ANSI - 01.07.2024

REX610 Technical Manual

All available functions are listed in the table. All of them may not be applicable to all products.

Table 1. Functions included in the relay

Function

IEC 61850

IEC 60617

IEC-ANSI

Protection

Three-phase non-directional overcurrent protection, low stage

PHLPTOC

3I>

51P-1

Three-phase non-directional overcurrent protection, high stage

PHHPTOC

3I>>

51P-2

Three-phase non-directional overcurrent protection, instantaneous stage

PHIPTOC

3I>>>

50P

Three-phase directional overcurrent protection, low stage

DPHLPDOC

3I> ->

67P/51P-1

Three-phase directional overcurrent protection, high stage

DPHHPDOC

3I>> ->

67P/51P-2

Non-directional earth-fault protection, low stage

EFLPTOC

Io>

51G/51N-1

Non-directional earth-fault protection, high stage

EFHPTOC

Io>>

51G/51N-2

Non-directional earth-fault protection, instantaneous stage

EFIPTOC

Io>>>

50G/50N

Directional earth-fault protection, low stage

DEFLPDEF

Io> ->

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

Directional earth-fault protection, high stage

DEFHPDEF

Io>> ->

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

Three-phase inrush detector

INRPHAR

3I2f>

68HB

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

T1PTTR

3Ith>F

49F

Motor load jam protection JAMPTOC Ist> 50TDJAM
Loss of load supervision LOFLPTUC 3I< 37
Phase reversal protection PREVPTOC I2>> 46R
Negative-sequence overcurrent protection for machines MNSPTOC I2>M 46M

Negative-sequence overcurrent protection

NSPTOC

I2>M

46M

Phase discontinuity / Single phasing protection for motor

PDNSPTOC

I2/I1>

46PD

Loss of phase, undercurrent

PHPTUC

3I<

37

Three-phase undervoltage protection

PHPTUV

3U<

27

Three-phase overvoltage protection

PHPTOV

3U>

59

Residual overvoltage protection

ROVPTOV

Uo>

59G/59N

Negative-sequence overvoltage protection NSPTOV U2> 59NS
Positive-sequence undervoltage protection PSPTUV U1< 27PS
Thermal overload protection for motors MPTTR 3Ith>M 49M

Circuit breaker failure protection

CCBRBRF

3I>/Io>BF

50BF

Master trip

TRPPTRC

Master Trip

94/86

Emergency start-up ESMGAPC ESTART EST,62
Frequency protection FRPFRQ f>/f<,df/dt 81
Arc protection ARCSARC ARC AFD
Motor start-up supervision STTPMSU Is2t n< 49,66,48,50TDLR

Multipurpose protection

MAPGAPC

MAP

MAP

Control

Circuit-breaker control

CBXCBR

I <-> O CB

52

Disconnector position indication

DCSXSWI

I <-> O DC

29DS

Earthing switch position indication

ESSXSWI

I <-> O ES

29GS

Synchronism and energizing check SECRSYN SYNC 25

Autoreclosing

DARREC

O -> I

79

Condition monitoring and supervision

Trip circuit supervision

TCSSCBR

TCS

TCM

Fuse failure supervision

SEQSPVC

FUSEF

VCM, 60

Runtime counter for machines and devices MDSOPT OPTS OPTM

Circuit-breaker condition monitoring

SSCBR

CBCM

52CM

Current circuit supervision

CCSPVC

MCS 3I

CCM

Measurement

Three-phase current measurement

CMMXU

3I

IA, IB, IC

Residual current measurement

RESCMMXU

Io

IG

Frequency measurement FMMXU f f

Sequence current measurement

CSMSQI

I1, I2, I0

I1, I2, I0

Sequence voltage measurement VSMSQI U1, U2, U0 V1, V2, V0
Three-phase power and energy measurement PEMMXU P, E P, E

Three-phase voltage measurement

VMMXU

3U

VA, VB, VC

Residual voltage measurement

RESVMMXU

Uo

VG/VN

Traditional LED indication

Programmable LED control

LED

LED

LED

Logging functions

Disturbance recorder (common functionality)

RDRE

DR

DFR

Disturbance recorder, analog channels 1…8

A1RADR

A1RADR

A1RADR

Disturbance recorder, binary channels 1...32

B1RBDR

B1RBDR

B1RBDR

Fault recorder

FLTRFRC

FAULTREC

FR

Communication protocols

IEC 61850-8-1 MMS

MMSLPRT

MMSLPRT

MMSLPRT

IEC 61850-8-1 GOOSE

GSELPRT

GSELPRT

GSELPRT

Modbus protocol

MBSLPRT

MBSLPRT

MBSLPRT