Name
Values (Range)
Unit
Step
Default
Description
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
-
-
ANSI Def. Time
Time delay curve type for step 1
Pickup1
1 - 2500
%IB
1
100
Operate neg. seq. curr. I2 level for step 1 in
% of IBase
t1
0.000 - 60.000
s
0.001
0.000
Independent (defenite) time delay of step 1
TD1
0.05 - 999.00
-
0.01
0.05
Time multiplier for the dependent time delay
for step 1
IMin1
1.00 - 10000.00
%IB
1.00
100.00
Minimum current for step 1
t1Min
0.000 - 60.000
s
0.001
0.000
Minimum operate time for inverse curves for
step 1
MultPU1
1.0 - 10.0
-
0.1
2.0
Multiplier for scaling the current setting value
for step 1
ResetTypeCrv1
Instantaneous
IEC Reset
ANSI reset
-
-
Instantaneous
Reset curve type for step 1
tReset1
0.000 - 60.000
s
0.001
0.020
Reset time delay for step 1
tPCrv1
0.005 - 3.000
-
0.001
1.000
Parameter P for customer programmable
curve for step 1
tACrv1
0.005 - 200.000
-
0.001
13.500
Parameter A for customer programmable
curve for step 1
tBCrv1
0.00 - 20.00
-
0.01
0.00
Parameter B for customer programmable
curve for step 1
tCCrv1
0.1 - 10.0
-
0.1
1.0
Parameter C for customer programmable
curve for step 1
tPRCrv1
0.005 - 3.000
-
0.001
0.500
Parameter PR for customer programmable
curve for step 1
tTRCrv1
0.005 - 100.000
-
0.001
13.500
Parameter TR for customer programmable
curve for step 1
tCRCrv1
0.1 - 10.0
-
0.1
1.0
Parameter CR for customer programmable
curve for step 1
Table continues on next page
1MRK505222-UUS C
Section 7
Current protection
431
Technical reference manual
Summary of Contents for Relion 670 series
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