Input And Output Signals - ABB Relion 670 Series Technical Reference Manual

1MRK505222-UUS C
5.1.4
Technical reference manual

Input and output signals

Table 60: L3CPDIF (87L) Input signals
Name Type
I3P1 GROUP
SIGNAL
I3P2 GROUP
SIGNAL
I3P3 GROUP
SIGNAL
Table 61: L3CPDIF (87L) Output signals
Name Type
TRIP BOOLEAN
TR_A BOOLEAN
TR_B BOOLEAN
TR_C BOOLEAN
TRIPRES BOOLEAN
TRIPUNRE BOOLEAN
TRIPENHA BOOLEAN
PICKUP BOOLEAN
PU_A BOOLEAN
PU_B BOOLEAN
PU_C BOOLEAN
BLK2H BOOLEAN
BLK2H_A BOOLEAN
BLK2H_B BOOLEAN
BLK2H_C BOOLEAN
BLK5H BOOLEAN
BLK5H_A BOOLEAN
BLK5H_B BOOLEAN
BLK5H_C BOOLEAN
OPENCT BOOLEAN
ALARM BOOLEAN
OPENCTAL BOOLEAN
ID_A REAL
ID_B REAL
ID_C REAL
Table continues on next page
Default Description
- Three phase current grp1 samples and DFT values
- Three phase current grp1 samples and DFT values
- Three phase current grp1 samples and DFT values
Description
Main Trip Signal
Trip signal from phase A
Trip signal from phase B
Trip signal from phase C
Trip by restrained differential 87L
Trip by unrestrained differential 87H
Trip by Enhanced restrainted differential 87LEnhanced
Main Pickup output signal
Pickup signal from phase A
Pickup signal from phase B
Pickup signal from phase C
Block signal due to second harmonic
Block signal due to second harmonic phase A
Block signal due to second harmonic phase B
Block signal due to second harmonic Phase C
Block signal due to fifth harmonic
Block signal due to fifth harmonic phase A
Block signal due to fifth harmonic phase B
Block signal due to fifth harmonic phase C
An open CT was detected
Alarm for sustained differential current
Open CT Alarm output signal. Issued after a delay ...
Instantaneous differential current, phase A
Instantaneous differential current, phase B
Instantaneous differential current, phase C
Section 5
Differential protection
145