ABB Relion 670 Series Technical Reference Manual page 594

Section 10
Multipurpose protection
Name Values (Range)
CurveType_OC2 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
Programmable
RI type
RD type
tDef_OC2 0.00 - 6000.00
TD_OC2 0.05 - 999.00
IMin2 1 - 10000
tMin_OC2 0.00 - 6000.00
VCntrlMode_OC2 Voltage control
Input control
Volt/Input control
Disabled
VDepMode_OC2 Step
Slope
VDepFact_OC2 0.02 - 5.00
VLowLimit_OC2 1.0 - 200.0
VHighLimit_OC2 1.0 - 200.0
HarmRestr_OC2 Disabled
Enabled
DirMode_OC2 Non-directional
Forward
Reverse
DirPrinc_OC2 I&V
IcosPhi&U
ActLowVolt2_VM Non-directional
Block
Memory
Operation_UC1 Disabled
Enabled
EnBlkLowI_UC1 Disabled
Enabled
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Unit Step Default
- - ANSI Def. Time
s 0.01 0.50
- 0.01 0.30
%IB 1 50
s 0.01 0.05
- - Disabled
- - Step
- 0.01 1.00
%VB 0.1 50.0
%VB 0.1 100.0
- - Disabled
- - Non-directional
- - I&V
- - Non-directional
- - Disabled
- - Disabled
1MRK505222-UUS C
Description
Selection of time delay curve type for OC2
Independent (definitive) time delay of OC2
Time multiplier for the dependent time delay
for OC2
Minimum operate current for step2 in % of
IBase
Minimum operate time for IEC IDMT curves
for OC2
Control mode for voltage controlled OC2
function
Voltage dependent mode OC2 (step, slope)
Multiplying factor for current pickup when
OC2 is voltage dependent
Voltage low limit setting OC2 in % of Vbase
Voltage high limit setting OC2 in % of Vbase
Enable block of OC2 by 2nd harmonic restrain
Directional mode of OC2 (nondir,
forward,reverse)
Measuring on IandV or IcosPhiandV for OC2
Low voltage level action for Dir_OC2 (Nodir,
Blk, Mem)
Disable/Enable operation of UC1
Enable internal low current level blocking for
UC1
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