PID-6623-OUTPUTSIGNALS v2
Table 46: T2WPDIF (87T) Output signals
Name Type Description
TRIP BOOLEAN General, common trip signal
TRIPRES BOOLEAN Trip signal from restrained differential protection
TRIPUNRE BOOLEAN Trip signal from unrestrained differential protection
TRNSUNR BOOLEAN Trip signal from unrestrained negative sequence differential
protection
TRNSSENS BOOLEAN Trip signal from sensitive negative sequence differential
protection
PICKUP BOOLEAN Common pickup signal from any phase
PU_A BOOLEAN Pickup signal from phase A
PU_B BOOLEAN Pickup signal from phase B
PU_C BOOLEAN Pickup signal from phase C
BLK2H BOOLEAN Common second harmonic block signal from any phase
BLK2H_A BOOLEAN Second harmonic block signal, phase A
BLK2H_B BOOLEAN Second harmonic block signal, phase B
BLK2H_C BOOLEAN Second harmonic block signal, phase C
BLK5H BOOLEAN Common fifth harmonic block signal from any phase
BLK5H_A BOOLEAN Fifth harmonic block signal, phase A
BLK5H_B BOOLEAN Fifth harmonic block signal, phase B
BLK5H_C BOOLEAN Fifth harmonic block signal, phase C
BLKWAV BOOLEAN Common block signal, waveform criterion, from any phase
BLKWAV_A BOOLEAN Block signal, waveform criterion, phase A
BLKWAV_B BOOLEAN Block signal, waveform criterion, phase B
BLKWAV_C BOOLEAN Block signal, waveform criterion, phase C
IDALARM BOOLEAN Alarm for sustained diff currents in all three phases
OPENCT BOOLEAN An open CT was detected
OPENCTAL BOOLEAN Open CT Alarm output signal. Issued after a delay ...
ID_A REAL Value of the instantaneous differential current, phase A
ID_B REAL Value of the instantaneous differential current, phase B
ID_C REAL Value of the instantaneous differential current, phase C
IDMAG_A REAL Magnitude of fundamental frequency differential current, phase A
IDMAG_B REAL Magnitude of fundamental frequency differential current, phase B
IDMAG_C REAL Magnitude of fundamental frequency differential current, phase C
IBIAS REAL Magnitude of the bias current, which is common to all phases
IDMAG_NS REAL Magnitude of the negative sequence differential current
Section 6 1MRK 502 066-UUS B
Differential protection
110
Technical manual
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