Settings - ABB REG670 Technical Manual

Section 6
Differential protection
6.3.5
Table 56: GENPDIF Group settings (basic)
Name
Operation
IdMin
IdUnre
OpNegSeqDiff
IMinNegSeq
148
Table 55: GENPDIF Output signals
Name
TRIP
TRIPRES
TRIPUNRE
TRNSUNR
TRNSSENS
START
STL1
STL2
STL3
BLKH
OPENCT
OPENCTAL
IDL1
IDL2
IDL3
IDNSMAG
IBIAS

Settings

Values (Range) Unit
Off -
On
0.05 - 1.00 IB
1.00 - 50.00 IB
Off -
On
0.02 - 0.20 IB
Type Description
BOOLEAN General, common trip signal
BOOLEAN Trip signal from restrained differential protection
BOOLEAN Trip signal from unrestrained differential protection
BOOLEAN Trip signal from unrestr. neg. seq. diff. protection
BOOLEAN Trip signal from sensitive neg. seq. diff. protection
BOOLEAN Common start signal from any phase
BOOLEAN Start signal from phase L1
BOOLEAN Start signal from phase L2
BOOLEAN Start signal from phase L3
BOOLEAN Common harmonic block signal
BOOLEAN An open CT was detected
BOOLEAN Open CT Alarm output signal. Issued after a
delay ...
REAL Instantaneous differential current L1; in primary
Amperes
REAL Instantaneous differential current L2; in primary
Amperes
REAL Instantaneous differential current L3; in primary
Amperes
REAL Negative Sequence Differential current; in primary
Amperes
REAL Magnitude of the common Bias current; in primary
Amperes
Step Default
- Off
0.01 0.25
0.01 10.00
- On
0.01 0.04
1MRK502052-UEN B
Description
Operation Off / On
Section 1 sensitivity, multiple of generator
rated current
Unrestr. prot. limit, multiple of generator
rated current
Negative Sequence Differential Enable
Off/On
Neg. sequence curr. limit, as multiple of
gen. rated curr.
Technical manual