ABB REF 54 Series Technical Reference Manual, General page 22

REF 54_
Table 5.1.1.1-1 Protection functions available for REF 54_ (Continued)
Function ANSI device no. IEC symbol
1) 67-1
DOC6Low
67-2
1)
DOC6High
1) 67-3
DOC6Inst
4) 21FL
FLOC
1) 81-1
Freq1St1
1) 81-2
Freq1St2
1) 81-3
Freq1St3
1) 81-4
Freq1St4
81-5
1)
Freq1St5
3) 60
FuseFail
Inrush3 68
2) 28
MotStart
NEF1Low 51N-1
NEF1High 51N-2
NEF1Inst 51N-3
NOC3Low 51-1
NOC3High 51-2
NOC3Inst 51-3
2) 51C
OL3Cap
OV3Low 59-1
OV3High 59-2
47-1
2)
PSV3St1
2) 47-2
PSV3St2
ROV1Low 59N-1
ROV1High 59N-2
ROV1Inst 59N-3
1) 25-1
SCVCSt1
1) 25-2
SCVCSt2
1) 49F
TOL3Cab
2) 49M/G/T
TOL3Dev
UV3Low 27-1
UV3High 27-2
22
Feeder Terminal
Technical Reference Manual, General
Description
3I>--> Three-phase directional overcurrent protection, low-set stage
3I>>--> Three-phase directional overcurrent protection, high-set stage
3I>>>--> Three-phase directional overcurrent protection, instantaneous stage
FLOC Fault locator
f1 Underfrequency or overfrequency protection, stage 1
f2 Underfrequency or overfrequency protection, stage 2
f3 Underfrequency or overfrequency protection, stage 3
f4 Underfrequency or overfrequency protection, stage 4
f5 Underfrequency or overfrequency protection, stage 5
FUSEF Fuse failure supervision
3I2f> Three-phase transformer inrush and motor start-up current detector
Is2t n< Three-phase start-up supervision for motors
Io> Non-directional earth-fault protection, low-set stage
Io>> Non-directional earth-fault protection, high-set stage
Io>>> Non-directional earth-fault protection, instantaneous stage
3I> Three-phase non-directional overcurrent protection, low-set stage
3I>> Three-phase non-directional overcurrent protection, high-set stage
3I>>> Three-phase non-directional overcurrent protection, instantaneous stage
3I>3I< Three-phase overload protection for shunt capacitor banks
3U> Three-phase overvoltage protection, low-set stage
3U>> Three-phase overvoltage protection, high-set stage
U1U2<>_1 Phase-sequence voltage protection, stage 1
U1U2<>_2 Phase-sequence voltage protection, stage 2
Uo> Residual overvoltage protection, low-set stage
Uo>> Residual overvoltage protection, high-set stage
Uo>>> Residual overvoltage protection, instantaneous stage
SYNC1 Synchro-check / voltage-check function, stage 1
SYNC2 Synchro-check / voltage-check function, stage 2
3Ith> Three-phase thermal overload protection for cables
3Ithdev> Three-phase thermal overload protection for devices
3U< Three-phase undervoltage protection, low-set stage
3U<< Three-phase undervoltage protection, high-set stage
1) These functions are only supported in the feeder terminal revisions of Release 1.5 or later.
2) These functions are only supported in the feeder terminal revisions of Release 2.0 or later.
3) These functions are only supported in the feeder terminal revisions of Release 2.5 or later.
4) This function is only supported in the feeder terminal revisions of Release 3.5 or later.
Refer to Section "Revision identification" on page 105 for more information.
1MRS750527-MUM