Table 55:
GENPDIF 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
BLKH
BOOLEAN
Common harmonic block signal
OPENCT
BOOLEAN
An open CT was detected
OPENCTAL
BOOLEAN
Open CT Alarm output signal. Issued after a
delay ...
IDL1
REAL
Instantaneous differential current L1; in primary
Amperes
IDL2
REAL
Instantaneous differential current L2; in primary
Amperes
IDL3
REAL
Instantaneous differential current L3; in primary
Amperes
IDNSMAG
REAL
Negative Sequence Differential current; in primary
Amperes
IBIAS
REAL
Magnitude of the common Bias current; in primary
Amperes
6.3.5
Settings
Table 56:
GENPDIF Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Off
On
-
-
Off
Operation Off / On
IdMin
0.05 - 1.00
IB
0.01
0.25
Section 1 sensitivity, multiple of generator
rated current
IdUnre
1.00 - 50.00
IB
0.01
10.00
Unrestr. prot. limit, multiple of generator
rated current
OpNegSeqDiff
Off
On
-
-
On
Negative Sequence Differential Enable
Off/On
IMinNegSeq
0.02 - 0.20
IB
0.01
0.04
Neg. sequence curr. limit, as multiple of
gen. rated curr.
Section 6
1MRK502052-UEN B
Differential protection
148
Technical manual
Summary of Contents for Relion REG670
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