Settings - ABB 615 series Technical Manual

Section 4
Protection functions
4.3.2.8
Table 435: 87T Group settings (Basic)
Parameter Values (Range)
High trip value 500...3000
Low trip value 5...50
Slope section 2 10...50
End section 2 100...500
Restraint Mode 5=Waveform
6=2.h + waveform
8=5.h + waveform
9=2.h + 5.h + wav
Pickup value 2.H 7...20
Pickup value 5.H 10...50
532
Name Type
I_C(2) SIGNAL
BLOCK BOOLEAN
BLK_OPR_LS BOOLEAN
BLK_OPR_HS BOOLEAN
Table 434: 87T Output signals
Name Type
TRIP BOOLEAN
OPR_LS BOOLEAN
OPR_HS BOOLEAN
BLKD2H BOOLEAN
BLKD5H BOOLEAN
BLKDWAV BOOLEAN

Settings

Unit Step
%Ir 10
%Ir 1
% 1
%Ir 1
% 1
% 1
Default Description
0 Phase C secondary current
0=False Block
0=False Blocks trip outputs from biased stage
0=False Blocks trip outputs from instantaneous stage
Description
Trip combined
Trip from low set
Trip from high set
2nd harmonic restraint block status
5th harmonic restraint block status
Waveform blocking status
Default Description
1000 Instantaneous stage setting
20 Basic setting for biased operation
30 Slope of the second line of the operating
characteristics
150 Turn-point between the second and the third
line of the operating characteristics
9=2.h + 5.h + wav Restraint Mode
15 The ratio of the 2. harmonic to fundamental
component required for blocking
35 The ratio of the 5. harmonic to fundamental
component required for blocking
1MAC059074-MB A
615 series ANSI
Technical Manual