6.1.3.3
Signals
Table 29:
T3WPDIF Input signals
Name
Type
Default
Description
I3PW1CT1
GROUP
SIGNAL
-
Three phase current connection winding 1 (W1)
CT1
I3PW2CT1
GROUP
SIGNAL
-
Three phase current connection winding 2 (W2)
CT1
I3PW3CT1
GROUP
SIGNAL
-
Three phase current connection winding 3 (W3)
CT1
BLOCK
BOOLEAN
0
Block of function
Table 30:
T3WPDIF Output signals
Name
Type
Description
TRIP
BOOLEAN
General trip signal
TRIPRES
BOOLEAN
Start signal from restrained differential protection
TRIPUNRE
BOOLEAN
Start signal from unrestrained differential
protection
TRNSUNR
BOOLEAN
Start signal from unrestrained negative sequence
differential protection
TRNSSENS
BOOLEAN
Start signal from sensitive negative sequence
differential protection
START
BOOLEAN
General start signal
STL1
BOOLEAN
Start signal from phase L1
STL2
BOOLEAN
Start signal from phase L2
STL3
BOOLEAN
Start signal from phase L3
BLK2H
BOOLEAN
General second harmonic block signal
BLK5H
BOOLEAN
General fifth harmonic block signal
BLKWAV
BOOLEAN
General block signal from waveform criteria
IDALARM
BOOLEAN
General alarm for sustained differential currents
IDL1MAG
REAL
Magnitude of fundamental frequency differential
current, phase L1
IDL2MAG
REAL
Magnitude of fundamental frequency differential
current, phase L2
IDL3MAG
REAL
Magnitude of fundamental frequency differential
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
Section 6
1MRK 504 135-UEN A
Differential protection
84
Technical manual
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