ABB REG670 - Page 385

Name Values (Range) Unit Step Default Description
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 characteristic for step 4
I2-4> 1 - 2500 %IB 1 17 Negative sequence current op level for
step 4 in % of IBase
t4 0.000 - 60.000 s 0.001 1.200 Time delay of step 4 when definite time
char. is selected
k4 0.05 - 999.00 - 0.01 0.05 Time multiplier for the step 4 selected time
characteristic
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 for inverse time
characteristic step 4
I4Mult 1.0 - 10.0 - 0.1 2.0 Multiplier for scaling the current setting
value for step 4
Table 182: NS4PTOC Group settings (advanced)
Name
Values (Range) Unit Step Default Description
ResetTypeCrv1 Instantaneous
IEC Reset
ANSI reset
-
- Instantaneous Reset curve type for step1
(Instantaneous / IEC / ANSI)
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 Param P for customized inverse trip time
curve for step 1
tACrv1 0.005 - 200.000 - 0.001 13.500 Param A for customized inverse trip time
curve for step 1
tBCrv1 0.00 - 20.00 - 0.01 0.00 Param B for customized inverse trip time
curve for step 1
tCCrv1 0.1 - 10.0 - 0.1 1.0 Param C for customized inverse trip time
curve for step 1
tPRCrv1 0.005 - 3.000 - 0.001 0.500 Param PR for customized inverse reset
time curve for step 1
tTRCrv1 0.005 - 100.000 - 0.001 13.500 Param TR for customized inverse reset
time curve for step
tCRCrv1 0.1 - 10.0 - 0.1 1.0 Param CR for customized inverse reset
time curve for step 1
Table continues on next page
1MRK502052-UEN B Section 8
Current protection
379
Technical manual