ABB Relion Technical Manual page 202

Generator protection
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Section 8
Current protection
Name
Values (Range)
DirMode2
Disabled
Non-directional
Forward
Reverse
I2>
5 - 2500
t2
0.000 - 60.000
DirMode3
Disabled
Non-directional
Forward
Reverse
I3>
5 - 2500
t3
0.000 - 60.000
DirMode4
Disabled
Non-directional
Forward
Reverse
Characterist4
ANSI Ext. inv.
ANSI Very inv.
ANSI Norm. inv.
ANSI Def. Time
L.T.E. inv.
L.T.V. inv.
L.T. inv.
IEC Norm. inv.
IEC Very inv.
IEC inv.
IEC Ext. inv.
IEC S.T. inv.
IEC L.T. inv.
IEC Def. Time
Reserved
RI type
RD type
I4>
5 - 2500
t4
0.000 - 60.000
k4
0.05 - 999.00
IMin4
5 - 10000
t4Min
0.000 - 60.000
196
Unit
Step
Default
-
-
Non-directional
%IB
1
500
s
0.001
0.400
-
-
Non-directional
%IB
1
250
s
0.001
0.800
-
-
Non-directional
-
-
ANSI Def. Time
%IB
1
175
s
0.001
2.000
-
0.01
0.05
%IB
1
100
s
0.001
0.000
1MRK 502 048-UUS A
Description
Directional mode of step 2 off / non-directional /
forward / reverse
Phase current operate level for step 2 in % of
IBase
Definite time delay of step 2
Directional mode of step 3 off / non-directional /
forward / reverse
Phase current operate level for step3 in % of
IBase
Definite time delay of step 3
Directional mode of step 4 off / non-directional /
forward / reverse
Selection of time delay curve type for step 4
Phase current operate level for step 4 in % of
IBase
Definite time delay of step 4
Time multiplier for the inverse time delay for
step 4
Minimum operate current for step4 in % of
IBase
Minimum operate time for inverse curves for
step 4
Technical manual

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