ABB RELION REX640 Technical Manual page 986

Protection functions
Parameter Values (Range)
4=OC AND Und im-
pedance
EF detection Mod
1=Io
GFC
2=Io OR Uo
3=Io AND Uo
4=Io AND IoRef
Operate delay GFC 100...60000
Str A Ph Sel GFC 0.10...10.00
Lo A Ph Sel GFC 0.10...10.00
Ph V Ph Sel GFC 0.05...1.00
PP V Ph Sel GFC 0.10...1.00
Z Chr Mod Ph Sel
1=Quadrilateral
GFC
2=Mho (circular)
Load Dsr mode
0=False
GFC
1=True
X Gnd Fwd reach 0.00...3000.00
GFC
X Gnd Rv reach GFC 0.00...3000.00
Ris Gnd Fwd Rch 0.00...500.00
GFC
Ris Gnd Rv Rch GFC 0.00...500.00
X PP Fwd reach 0.00...3000.00
GFC
X PP Rv reach GFC 0.00...3000.00
Ris PP Fwd Rch GFC 0.00...100.00
Ris PP Rv Rch GFC 0.00...100.00
Ris Fwd Rch Lod 0.00...3000.00
GFC
Ris Rv Rch Lod GFC 0.00...3000.00
Table continues on the next page
986
Unit Step
ms 10
xIn 0.01
xIn 0.01
xUn 0.01
xUn 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
ohm 0.01
1MRS759142 F
Default Description
1=Io Earth-fault (EF) de-
tection method
3000 Time delay to oper-
ate, GFC
2.00 Phase current start
value, PSL
0.80 Phase current start
value, voltage dep.
over current, PSL
0.46 PE-voltage start
value, voltage dep.
over current, PSL
0.80 PP-voltage start
value, voltage dep.
over current, PSL
1=Quadrilateral Impedance charac-
teristic, underimpe-
dance, PSL
0=False Enable load dis-
crimination, under-
impedance, PSL
40.00 Reactive forward
reach for PE-loops,
underimpedance,
PSL
40.00 Reactive reverse
reach for PE-loops,
underimpedance,
PSL
100.00 Resistive forward
reach for PE-loops,
underimpedance,
PSL
100.00 Resistive reverse
reach for PE-loops,
underimpedance,
PSL
40.00 Reactive forward
reach for PP-loops,
underimpedance,
PSL
40.00 Reactive reverse
reach for PP-loops,
underimpedance,
PSL
30.00 Resistive forward
reach for PP-loops,
underimpedance,
PSL
30.00 Resistive reverse
reach for PP-loops,
underimpedance,
PSL
80.00 Resistive forward
reach for load
discrimination, un-
drerimpedance,
PSL
80.00 Resistive reverse
reach for load
discrimination, un-
Technical Manual
REX640