Name
Values (Range)
Unit
Step
Default
Description
tTRCrv3
0.005 - 100.000
-
0.001
13.500
Parameter TR for customer programmable
curve step 3
tCRCrv3
0.1 - 10.0
-
0.1
1.0
Parameter CR for customer programmable
curve for step 3
DirModeSel4
Disabled
Non-directional
Forward
Reverse
-
-
Non-directional
Directional mode of step 4 (Disabled, Nondir,
Forward, Reverse)
Characterist4
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
-
-
ANSI Def. Time
Time delay curve type for step 4
Pickup4
1 - 2500
%IB
1
17
Operate neg. seq. curr. I2 level for step 4 in
% of IBase
t4
0.000 - 60.000
s
0.001
1.200
Independent (definitive) time delay of step 4
TD4
0.05 - 999.00
-
0.01
0.05
Time multiplier for the dependent time delay
for step 4
IMin4
1.00 - 10000.00
%IB
1.00
17
Minimum current for step 4
t4Min
0.000 - 60.000
s
0.001
0.000
Minimum operate time in inverse curves step 4
MultPU4
1.0 - 10.0
-
0.1
2.0
Multiplier for scaling the current setting value
for step 4
ResetTypeCrv4
Instantaneous
IEC Reset
ANSI reset
-
-
Instantaneous
Reset curve type for step 4
tReset4
0.000 - 60.000
s
0.001
0.020
Reset time delay for step 4
tPCrv4
0.005 - 3.000
-
0.001
1.000
Parameter P for customer programmable
curve for step 4
tACrv4
0.005 - 200.000
-
0.001
13.500
Parameter A for customer programmable
curve step 4
tBCrv4
0.00 - 20.00
-
0.01
0.00
Parameter B for customer programmable
curve for step 4
tCCrv4
0.1 - 10.0
-
0.1
1.0
Parameter C for customer programmable
curve step 4
Table continues on next page
Section 7
1MRK505222-UUS C
Current protection
434
Technical reference manual
Summary of Contents for Relion 670 series
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