ABB Relion 670 Series Technical Reference Manual page 422

Line differential protection ansi
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Section 7
Current protection
Name
Values (Range)
EnHarmRestSOTF
Disabled
Enabled
tSOTF
0.000 - 60.000
t4U
0.000 - 60.000
ActUndrTimeSel
CB position
CB command
tUnderTime
0.000 - 60.000
DirModeSel1
Disabled
Non-directional
Forward
Reverse
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
Pickup1
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
ResetTypeCrv1
Instantaneous
IEC Reset
ANSI reset
tReset1
0.000 - 60.000
HarmRestrain1
Disabled
Enabled
tPCrv1
0.005 - 3.000
Table continues on next page
416
Unit
Step
Default
-
-
Disabled
s
0.001
0.200
s
0.001
1.000
-
-
CB position
s
0.001
0.300
-
-
Non-directional
-
-
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
-
-
Instantaneous
s
0.001
0.020
-
-
Enabled
-
0.001
1.000
1MRK505222-UUS C
Description
Enable harmonic restrain function in SOTF
Time delay for SOTF
Switch-onto-fault active time
Select signal to activate under time (CB Pos/
CBCommand)
Time delay for under time
Directional mode of step 1 (Disabled, Nondir,
Forward, Reverse)
Time delay curve type for step 1
Residual current pickup for step 1 in % of IBase
Independent (defenite) time delay of step 1
Time multiplier for the dependent time delay
for step 1
Minimum current for step 1
Minimum operate time for inverse curves for
step 1
Multiplier for scaling the current setting value
for step 1
Reset curve type for step 1
Reset time delay for step 1
Enable block of step 1 from harmonic restrain
Parameter P for customer programmable
curve for step 1
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