ABB REG650 - Settings

Table 25: 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
6.1.2.4 Settings
Table 26: T3WPDIF Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
IdMin 0.10 - 0.60 IB 0.01 0.30 Section 1 sensitivity current, usually W1
current
EndSection1 0.20 - 1.50 IB 0.01 1.25 End of section 1, multiple of W1 rated
current
EndSection2 1.00 - 10.00 IB 0.01 3.00 End of section 2, multiple of W1 rated
current
SlopeSection2 10.0 - 50.0 % 0.1 40.0 Slope in section 2 of operate-restrain
characteristics
SlopeSection3 30.0 - 100.0 % 0.1 80.0 Slope in section 3 of operate-restrain
characteristics
Table continues on next page
1MRK 502 048-UEN A Section 6
Differential protection
83
Technical manual