ABB RED650 Technical Manual page 97

1MRK 505 394-UEN A
Name Values (Range)
k
IdiffAlarm
tAlarmdelay
Table 37: LT3CPDIF Group settings (advanced)
Name Values (Range)
EndSection1
EndSection2
SlopeSection2
SlopeSection3
I2/I1Ratio
I5/I1Ratio
p
a
b
c
OpenCTEnable
tOCTAlarmDelay
tOCTResetDelay
OCTBlockEn
Table 38: LT3CPDIF Non group settings (basic)
Name Values (Range)
GlobalBaseSel
NoOfUsedCTs
ZerSeqCurSubtr
Table continues on next page
Line differential protection RED650 2.2 IEC
Technical manual
Unit
0.05 - 1.10 -
0.05 - 1.00 IB
0.000 - 60.000 s
Unit
0.20 - 1.50 IB
1.00 - 10.00 IB
10.0 - 50.0 %
30.0 - 100.0 %
5.0 - 100.0 %
5.0 - 100.0 %
0.01 - 1000.00 -
0.01 - 1000.00 -
0.01 - 1000.00 -
0.01 - 1000.00 -
Off -
On
0.100 - 10.000 s
0.100 - 10.000 s
Off -
On
Unit
1 - 12 -
2 -
3
Off -
On
Step Default
0.01 1.00
0.01 0.15
0.001 10.000
Step Default
0.01 1.25
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
- On
0.001 1.000
0.001 0.250
- On
Step Default
1 1
- 2
- Off
Section 6
Differential protection
Description
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 2nd harm. to fundamental
harm dif. curr. in %
Max. ratio of 5th harm. 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.
Open CTEnable Off/On
Open CT: time in s to alarm after an
open CT is detected
Reset delay in s. After delay, diff.
function is activated
Enable Open CT blocking function trip
Off/On
Description
Selection of one of the Global Base
Value groups
Total number of 3-Ph CT sets connected
to diff protection
Off/On for elimination of zero seq. from
diff. and bias curr
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