ABB Relion 620 Series - Page 553

Name Type Default Description
I_A2 SIGNAL 0 Phase A secondary
current
I_B2 SIGNAL 0 Phase B secondary
current
I_C2 SIGNAL 0 Phase C secondary
current
BLOCK BOOLEAN 0=False Block
BLK_OPR_LS BOOLEAN 0=False Blocks operate out-
puts from biased
stage
BLK_OPR_HS BOOLEAN 0=False Blocks operate out-
puts from instantane-
ous stage
TAP_POS INT8 0 Tap position indica-
tion
Table 485: TR2PTDF Output signals
Name Type Description
OPERATE BOOLEAN Operate combined
OPR_LS BOOLEAN Operate from low set
OPR_HS BOOLEAN Operate from high set
BLKD2H BOOLEAN 2nd harmonic restraint block
status
BLKD5H BOOLEAN 5th harmonic restraint block
status
BLKDWAV BOOLEAN Waveform blocking status
4.3.2.8 Settings
Table 486: TR2PTDF Group settings (Basic)
Parameter
Values (Range) Unit Step Default Description
High operate value 500...3000 %Ir 10 1000 Instantaneous
stage setting
Low operate value 5...50 %Ir 1 20 Basic setting for
biased operation
Slope section 2 10...50 % 1 30 Slope of the second
line of the operat-
ing characteristics
End section 2 100...500 %Ir 1 150 Turn-point be-
tween the second
and the third line of
the operating char-
acteristics
Restraint mode
5=Waveform
6=2.h + waveform
8=5.h + waveform
9=2.h + 5.h + wav
9=2.h + 5.h + wav Restraint mode
Table continues on the next page
1MRS757644 H Protection functions
620 series
Technical Manual
553