ABB REF 545 Product Guide

Feeder Terminal REF 541, REF 543, REF 545.
1MRS750443-MBG
20
1) These functions are only supported in the feeder termi-
nal revisions of Release 1.5 or later.
2) These functions are only supported in the feeder termi-
nal revisions of Release 2.0 or later.
3) These functions are only supported in the feeder termi-
nal revisions of Release 2.5 or later.
4) This function is only supported in the feeder terminal
revisions of Release 3.5 or later.
Table 6: Protection functions
Function ANSI
device no.
IEC
symbol
Description
AR5Func 79 O-->I Auto-reclose function (5 shots)
CUB1Cap
2)
51NC-1 dI>C Current unbalance protection for shunt capacitor banks
CUB3Cap
3)
51NC-2 3dI>C Three-phase current unbalance protection for H-bridge connected
shunt capacitor
CUB3Low 46 Iub> Phase discontinuity protection
DEF2Low 67N-1 Io>--> Directional earth-fault protection, low-set stage
DEF2High 67N-2 Io>>--> Directional earth-fault protection, high-set stage
DEF2Inst 67N-3 Io>>>--> Directional earth-fault protection, instantaneous stage
DOC6Low
1)
67-1 3I>--> Three-phase directional overcurrent protection, low-set stage
DOC6High
1)
67-2 3I>>--> Three-phase directional overcurrent protection, high-set stage
DOC6Inst
1)
67-3 3I>>>--> Three-phase directional overcurrent protection, instantaneous
stage
FLOC
4)
21FL FLOC Fault locator
Freq1St1
1)
81-1 f1 Underfrequency or overfrequency protection, stage 1
Freq1St2
1)
81-2 f2 Underfrequency or overfrequency protection, stage 2
Freq1St3
1)
81-3 f3 Underfrequency or overfrequency protection, stage 3
Freq1St4
1)
81-4 f4 Underfrequency or overfrequency protection, stage 4
Freq1St5
1)
81-5 f5 Underfrequency or overfrequency protection, stage 5
FuseFail
3)
60 FUSEF Fuse failure supervision
Inrush3 68 3I2f> Three-phase transformer inrush and motor start-up current detector
MotStart
2)
48 Is2t n< Three-phase start-up supervision for motors
NEF1Low 51N-1 Io> Non-directional earth-fault protection, low-set stage
NEF1High 51N-2 Io>> Non-directional earth-fault protection, high-set stage
NEF1Inst 51N-3 Io>>> Non-directional earth-fault protection, instantaneous stage
NOC3Low 51-1 3I> Three-phase non-directional overcurrent protection, low-set stage
NOC3High 51-2 3I>> Three-phase non-directional overcurrent protection, high-set stage
NOC3Inst 51-3 3I>>> Three-phase non-directional overcurrent protection, instantaneous
stage
OL3Cap
2)
51C 3I>3I< Three-phase overload protection for shunt capacitor banks
OV3Low 59-1 3U> Three-phase overvoltage protection, low-set stage
OV3High 59-2 3U>> Three-phase overvoltage protection, high-set stage
PSV3St1
2)
47-1 U1U2<>_1 Phase-sequence voltage protection, stage 1
PSV3St2
2)
47-2 U1U2<>_2 Phase-sequence voltage protection, stage 2
ROV1Low 59N-1 Uo> Residual overvoltage protection, low-set stage
ROV1High 59N-2 Uo>> Residual overvoltage protection, high-set stage
ROV1Inst 59N-3 Uo>>> Residual overvoltage protection, instantaneous stage
SCVCSt1
1)
25-1 SYNC1 Synchro-check / voltage-check function, stage 1
SCVCSt2
1)
25-2 SYNC2 Synchro-check / voltage-check function, stage 2
TOL3Cab
1)
49F 3Ith> Three-phase thermal overload protection for cables
TOL3Dev
2)
49M/G/T 3Ithdev> Three-phase thermal overload protection for devices
UV3Low 27-1 3U< Three-phase undervoltage protection, low-set stage
UV3High 27-2 3U<< Three-phase undervoltage protection, high-set stage

ABB REF 545 Specifications

General

Brand	ABB
Model	REF 545
Category	Touch terminals
Language	English