Name Values (Range) Unit Step Default Description
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
Programmable
RI type
RD type
- - ANSI Def. Time Selection of time delay curve type for step
4
Pickup4 5 - 2500 %IB 1 175 Operating phase current level for step 4 in
% of IBase
t4 0.000 - 60.000 s 0.001 2.000 Def time delay or add time delay for
inverse char of step 4
TD4 0.05 - 999.00 - 0.01 0.05 Time dial multiplier for the inverse time
delay for step 4
IMin4 1 - 10000 %IB 1 17 Minimum operate current for step4 in % of
IBase
t4Min 0.000 - 60.000 s 0.001 0.000 Minimum operate time for inverse curves
for step 4
MultPU4 1.0 - 10.0 - 0.1 2.0 Multiplier for current operate level for step
4
Table 215: OC4PTOC (51_67) Group settings (advanced)
Name Values (Range) Unit Step Default Description
PUMinOpPhSel 1 - 100 %IB 1 7 Minimum current for phase selection in %
of IBase
2ndHarmStab 5 - 100 %IB 1 20 Operate level of 2nd harmonic curr in % of
fundamental curr
ResetTypeCrv1 Instantaneous
IEC Reset
ANSI reset
- - Instantaneous Selection of reset curve type for step 1
tReset1 0.000 - 60.000 s 0.001 0.020 Constant reset time 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
Table continues on next page
Section 8 1MRK 502 066-UUS B
Current protection
456
Technical manual
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