ABB REF 541 Product Manual page 68

68
Feeder Terminal
Application selection tables for REF 541, REF 543 and REF 545
functions
.
Table 20: Protection functions
Function ANSI
device no.
AR5Func 79
2)
CUB1Cap 51NC-1
3)
CUB3Cap 51NC-2
CUB3Low 46
DEF2Low 67N-1
DEF2High 67N-2
DEF2Inst 67N-3
1)
DOC6Low 67-1
1)
DOC6High 67-2
1)
DOC6Inst 67-3
4)
FLOC 21FL
1)
Freq1St1 81-1
1)
Freq1St2 81-2
1)
Freq1St3 81-3
1)
Freq1St4 81-4
1)
Freq1St5 81-5
3)
FuseFail 60
Inrush3 68
2)
MotStart 48
NEF1Low 51N-1
NEF1High 51N-2
NEF1Inst 51N-3
NOC3Low 51-1
NOC3High 51-2
NOC3Inst 51-3
2)
OL3Cap 51C
OV3Low 59-1
OV3High 59-2
2)
PSV3St1 47-1
2)
PSV3St2 47-2
ROV1Low 59N-1
ROV1High 59N-2
ROV1Inst 59N-3
1)
SCVCSt1 25-1
1)
SCVCSt2 25-2
1)
TOL3Cab 49F
2)
TOL3Dev 49M/G/T
UV3Low 27-1
UV3High 27-2
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
.
IEC symbol Description
O-->I Auto-reclose function (5 shots)
dI>C Current unbalance protection for shunt capacitor banks
3dI>C Three-phase current unbalance protection for H-bridge
connected shunt capacitor
Iub> Phase discontinuity protection
Io>--> Directional earth-fault protection, low-set stage
Io>>--> Directional earth-fault protection, high-set stage
Io>>>--> Directional earth-fault protection, instantaneous stage
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
I>> 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
3)
4)
REF 541, REF 543, REF 545.
1MRS750443-MBG
These functions are only supported in the feeder termi-
nal revisions of Release 2.5 or later.
This function is only supported in the feeder terminal
revisions of Release 3.5 or later.