ABB Relion 670 series, Technical Reference Manual, Page: 595 / 1232

Name Values (Range) Unit Step Default Description
BlkLowCurr_UC1 0 - 150 %IB 1 20 Internal low current blocking level for UC1 in
% of Ibase
PickupCurr_UC1 2.0 - 150.0 %IB 1.0 70.0 Operate undercurrent level for UC1 in % of
Ibase
tDef_UC1 0.00 - 6000.00 s 0.01 0.50 Independent (definitive) time delay of UC1
tResetDef_UC1 0.00 - 6000.00 s 0.01 0.00 Reset time delay used in IEC Definite Time
curve UC1
HarmRestr_UC1 Disabled
Enabled
- - Disabled Enable block of UC1 by 2nd harmonic restrain
Operation_UC2 Disabled
Enabled
- - Disabled Disable/Enable operation of UC2
EnBlkLowI_UC2 Disabled
Enabled
- - Disabled Enable internal low current level blocking for
UC2
BlkLowCurr_UC2 0 - 150 %IB 1 20 Internal low current blocking level for UC2 in
% of Ibase
PickupCurr_UC2 2.0 - 150.0 %IB 1.0 70.0 Operate undercurrent level for UC2 in % of
Ibase
tDef_UC2 0.00 - 6000.00 s 0.01 0.50 Independent (definitive) time delay of UC2
HarmRestr_UC2 Disabled
Enabled
- - Disabled Enable block of UC2 by 2nd harmonic restrain
Operation_OV1 Disabled
Enabled
- - Disabled Disable/Enable operation of OV1
PickupVolt_OV1 2.0 - 200.0 %VB 0.1 150.0 Operate voltage level for OV1 in % of Vbase
CurveType_OV1 Definite time
Inverse curve A
Inverse curve B
Inverse curve C
Prog. inv. curve
- - Definite time Selection of time delay curve type for OV1
tDef_OV1 0.00 - 6000.00 s 0.01 1.00 Operate time delay in sec for definite time use
of OV1
tMin_OV1 0.00 - 6000.00 s 0.01 0.05 Minimum operate time for Inverse-Time
curves for OV1
TD_OV1 0.05 - 999.00 - 0.01 0.30 Time multiplier for the dependent time delay
for OV1
Operation_OV2 Disabled
Enabled
- - Disabled Disable/Enable operation of OV2
PickupVolt_OV2 2.0 - 200.0 %VB 0.1 150.0 Pickup voltage for OV2 in % of Vbase
CurveType_OV2 Definite time
Inverse curve A
Inverse curve B
Inverse curve C
Prog. inv. curve
- - Definite time Selection of time delay curve type for OV2
tDef_OV2 0.00 - 6000.00 s 0.01 1.00 Operate time delay in sec for definite time use
of OV2
tMin_OV2 0.00 - 6000.00 s 0.01 0.05 Minimum operate time for Inverse-Time
curves for OV2
Table continues on next page
1MRK505222-UUS C
Section 10
Multipurpose protection
589
Technical reference manual