ABB REG670 - Page 111

Table 36: T2WPDIF 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 unrestr. neg. seq. diff. protection
TRNSSENS BOOLEAN Trip signal from sensitive neg. seq. diff. protection
START BOOLEAN Common start signal from any phase
STL1 BOOLEAN Start signal from phase L1
STL2 BOOLEAN Start signal from phase L2
STL3 BOOLEAN Start signal from phase L3
BLK2H BOOLEAN Common second harmonic block signal from any
phase
BLK2HL1 BOOLEAN Second harmonic block signal, phase L1
BLK2HL2 BOOLEAN Second harmonic block signal, phase L2
BLK2HL3 BOOLEAN Second harmonic block signal, phase L3
BLK5H BOOLEAN Common fifth harmonic block signal from any
phase
BLK5HL1 BOOLEAN Fifth harmonic block signal, phase L1
BLK5HL2 BOOLEAN Fifth harmonic block signal, phase L2
BLK5HL3 BOOLEAN Fifth harmonic block signal, phase L3
BLKWAV BOOLEAN Common block signal, waveform criterion, from
any phase
BLKWAVL1 BOOLEAN Block signal, waveform criterion, phase L1
BLKWAVL2 BOOLEAN Block signal, waveform criterion, phase L2
BLKWAVL3 BOOLEAN Block signal, waveform criterion, phase L3
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 ...
IDL1 REAL Value of the instantaneous differential current,
phase L1
IDL2 REAL Value of the instantaneous differential current,
phase L2
IDL3 REAL Value of the instantaneous differential current,
phase L3
IDL1MAG REAL Magnitude of fundamental freq. diff. current, phase
L1
IDL2MAG REAL Magnitude of fundamental freq. diff. current, phase
L2
IDL3MAG REAL Magnitude of fundamental freq. diff. current, phase
L3
IBIAS REAL Magnitude of the bias current, which is common to
all phases
IDNSMAG REAL Magnitude of the negative sequence differential
current
1MRK502052-UEN B Section 6
Differential protection
105
Technical manual