ABB RELION 670 Series Technical Manual page 500

Generator protection
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Section 8
Current protection
Name
Values (Range)
Characterist1
ANSI Ext. inv.
ANSI Very inv.
ANSI Norm. inv.
ANSI Mod. 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
Programmable
RI type
RD type
I2-1>
1 - 2500
t1
0.000 - 60.000
TD1
0.05 - 999.00
IMin1
1.00 - 10000.00
t1Min
0.000 - 60.000
MultPU1
1.0 - 10.0
DirModeSel2
Disabled
Non-directional
Forward
Reverse
Characterist2
ANSI Ext. inv.
ANSI Very inv.
ANSI Norm. inv.
ANSI Mod. 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
Programmable
RI type
RD type
I2-2>
1 - 2500
t2
0.000 - 60.000
Table continues on next page
494
Unit
Step
Default
-
-
ANSI Def. Time
%IB
1
100
s
0.001
0.000
-
0.01
0.05
%IB
1.00
100.00
s
0.001
0.000
-
0.1
2.0
-
-
Non-directional
-
-
ANSI Def. Time
%IB
1
50
s
0.001
0.400
1MRK 502 066-UUS B
Description
Time delay characteristic for step 1
Negative sequence current op level for
step 1 in % of IBase
Def time delay or add time delay for
inverse char of step 1
Time multiplier for the step 1 selected time
characteristic
Minimum current for step 1
Minimum operate time for inverse time
characteristic step 1
Multiplier for scaling the current setting
value for step 1
Directional mode of step 2 (Disabled,
Nondir, Forward, Reverse)
Time delay characteristic for step 2
Negative sequence current op level for
step 2 in % of IBase
Def time delay or add time delay for
inverse char of step 2
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