ABB Relion 670 Series Technical Reference Manual page 157

1MRK505222-UUS C
Name Values (Range)
CurveType 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
TD 0.05 - 1.10
IdiffAlarm 0.05 - 1.00
tAlarmdelay 0.000 - 60.000
Table 71: L3CPDIF (87L) Group settings (advanced)
Name Values (Range)
EndSection1 0.20 - 1.50
EndSection2 1.00 - 10.00
SlopeSection2 10.0 - 50.0
SlopeSection3 30.0 - 100.0
I2/I1Ratio 5.0 - 100.0
I5/I1Ratio 5.0 - 100.0
p 0.01 - 1000.00
a 0.01 - 1000.00
b 0.01 - 1000.00
c 0.01 - 1000.00
Table continues on next page
Technical reference manual
Unit Step Default
- - IEC Def. Time
- 0.01 1.00
IB 0.01 0.15
s 0.001 10.000
Unit Step Default
IB 0.01 1.25
IB 0.01 3.00
% 0.1 40.0
% 0.1 80.0
% 1.0 10.0
% 1.0 25.0
- 0.01 0.02
- 0.01 0.14
- 0.01 1.00
- 0.01 1.00
Differential protection
Description
19 curve types. Example: 15 for definite time
delay.
Time Multiplier Setting (TMS) for inverse
delays
Sustained differential current alarm, factor of
IBase
Delay for alarm due to sustained differential
current, in s
Description
End of section 1, as multiple of reference
current IBase
End of section 2, as multiple of reference
current IBase
Slope in section 2 of operate-restrain
characteristic, in %
Slope in section 3 of operate- restrain
characteristic, in %
Max. ratio of second harmonic to fundamental
harm dif. curr. in %
Max. ratio of fifth harmonic to fundamental
harm dif. curr. in %
Settable curve parameter, user-
programmable curve type.
Settable curve parameter, user-
programmable curve type.
Settable curve parameter, user-
programmable curve type.
Settable curve parameter, user-
programmable curve type.
Section 5
151