ABB REL 356

ABB REL 356 Current Differential Protection
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Glossary
OPBR Open breaker
OSB Out of step block
OSC Trigger for storing oscillographic data
OSCAR Oscillographic and recording program
OSOT Out of step override timer
OST Out of step trip
OST1 Out of step detection timer
OST2 Out of step trip timer
OST3 Out of step timer, way out trip
OTH Set operating threshold
PANG Line positive sequence angle
PFLC Pre-fault load current
PFLV Pre-fault voltage
PLT Pilot trip
PONI Computer/network interface
RAM Read-write random access volatile memory
RB Reclose block contact
RBEN Reclose block enable
RCP Remote communication program
REM Remote
RES Restraint quantity
RIFT Reclose into fault
RLSD Receiver level signal detector
ROM Read-only memory
RP Enable readouts in primary values
RT Inner blinder setting, load restriction
RU Outer blinder setting
S/N ratio Signal to noise ratio
SET Setting access status
SETR Remote setting
SLGF Single line to ground fault
SNR Signal to noise ratio
T2G Zone 2 ground timer
T2P Zone 2 phase timer
T3G Zone 3 ground timer
T3P Zone 3 phase timer
TDES Trip desensitizing
TG Time overcurrent ground trip
TOG Ground overcurrent unit timer
TRGG Ground current pickup timer
TRGP Phase current pickup level
TTRP Direct transfer trip
UNID Unit ID
VAG Phase A to ground voltage
VBG Phase B to ground voltage
VCG Phase C to ground voltage
VERS Software version
VTR Voltage transformer ratio
3-6
3-4
2-15
2-6
3-16
3-16
3-16
3-16
3-16
3-8
3-13
2-17
2-17
2-16
2-13
2-3
2-7
3-6
2-6
2-15
1-7
2-16
3-12
2-3
3-4
3-16
3-16
2-17
2-15
3-16
4-8
2-17
3-15
3-15
3-15
3-15
3-8
2-16
3-14
3-5
3-5
3-12
3-11
6-4
6-4
6-4
3-4
3-4