ABB REG670 - Page 112

Table 37: T3WPDIF Input signals
Name Type Default Description
I3PW1CT1 GROUP
SIGNAL
- Three phase winding primary CT1
I3PW1CT2 GROUP
SIGNAL
- Three phase winding primary CT2
I3PW2CT1 GROUP
SIGNAL
- Three phase winding secondary CT1
I3PW2CT2 GROUP
SIGNAL
- Three phase winding secondary CT2
I3PW3CT1 GROUP
SIGNAL
- Three phase winding tertiary CT1
I3PW3CT2 GROUP
SIGNAL
- Three phase winding tertiary CT2
TAPOLTC1 INTEGER 1 Most recent tap position reading on OLTC 1
TAPOLTC2 INTEGER 1 Most recent tap position reading on OLTC 2
OLTC1AL BOOLEAN 0 OLTC1 alarm
OLTC2AL BOOLEAN 0 OLTC2 alarm
BLOCK BOOLEAN 0 Block of function
BLKRES BOOLEAN 0 Block of trip for restrained differential feature
BLKUNRES BOOLEAN 0 Block of trip for unrestrained differential feature
BLKNSUNR BOOLEAN 0 Block of trip for unrestr. neg. seq. differential
feature
BLKNSSEN BOOLEAN 0 Block of trip for sensitive neg. seq. differential
feature
Table 38: T3WPDIF 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
Table continues on next page
Section 6 1MRK502052-UEN B
Differential protection
106
Technical manual