28
1MRS750915-MUM
Machine Terminal
Technical Reference Manual, General
REM 54_
Freq1St5 Underfrequency or overfrequency protection, stage 5
FuseFail
a
Fuse failure supervision
Inrush3 Three-phase transformer inrush and motor start-up current detector
MotStart Three-phase start-up supervision for motors
NEF1Low Non-directional earth-fault protection, low-set stage
NEF1High Non-directional earth-fault protection, high-set stage
NEF1Inst Non-directional earth-fault protection, instantaneous stage
NOC3Low Three-phase non-directional overcurrent protection, low-set stage
NOC3High Three-phase non-directional overcurrent protection, high-set stage
NOC3Inst Three-phase non-directional overcurrent protection, instantaneous stage
NPS3Low Negative-phase-sequence (NPS) protection, low-set stage
NPS3High Negative-phase-sequence (NPS) protection, high-set stage
NUC3St1 Three-phase non-directional undercurrent protection, stage 1
NUC3St2 Three-phase non-directional undercurrent protection, stage 2
OE1Low
a
Overexcitation protection, low-set stage
OE1High
a
Overexcitation protection, high-set stage
OPOW6St1 Three-phase overpower protection, stage 1
OPOW6St2 Three-phase overpower protection, stage 2
OPOW6St3 Three-phase overpower protection, stage 3
OV3Low Three-phase overvoltage protection, low-set stage
OV3High Three-phase overvoltage protection, high-set stage
PREV3
a
Phase reversal protection
PSV3St1
a
Phase-sequence voltage protection, stage 1
PSV3St2
a
Phase-sequence voltage protection, stage 2
REF1A High-impedance based restricted earth-fault protection
ROV1Low Residual overvoltage protection, low-set stage
ROV1High Residual overvoltage protection, high-set stage
ROV1Inst Residual overvoltage protection, instantaneous stage
SCVCSt1
b
Synchro-check/voltage check function, stage 1
SCVCSt2
b
Synchro-check/voltage check function, stage 2
TOL3Dev Three-phase thermal overload protection for devices
UE6Low Three-phase underexcitation protection, low-set stage
UE6High Three-phase underexcitation protection, high-set stage
UI6Low
a
Three-phase underimpedance protection, low-set stage
UI6High
a
Three-phase underimpedance protection, high-set stage
UPOW6St1 Three-phase underpower or reverse-power protection, stage 1
UPOW6St2 Three-phase underpower or reverse-power protection, stage 2
UPOW6St3 Three-phase underpower or reverse-power protection, stage 3
UV3Low Three-phase undervoltage protection, low-set stage
UV3High Three-phase undervoltage protection, high-set stage
VOC6Low Voltage-dependent overcurrent protection, low-set stage
VOC6High Voltage-dependent overcurrent protection, high-set stage
a. These functions are only supported in Release 2.0 or later, refer to section “Revision identification”
on page 97.
b. These functions are only supported in Release 2.5 or later, refer to section “Revision identification”
on page 97.
Table 5.1.1.1-1 Protection functions available for REM 54_ (Continued)
Function Description
To Next Page
Loading...
