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
Summary of Contents for Relion REG670
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