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Setting
IED 1
IED 2
Remarks
TraBWind2Volt
70 kV
70 kV
Transformer B, d-side
voltage in kV
ClockNumTransB
1
1
LV d-side lags Y-side by 30
degrees
ZerSeqCurSubtr
On
On
Zero-sequence currents are
subtracted from
differential and bias
currents (Remark 3)
Table 15: Setting group N
Setting
IED 1
IED 2
Remarks
ChargCurEnable
Off
Off
Charging current not
eliminated (Default)
IdMin
0.35 ·
IBase
0.35 ·
IBase
Sensitivity in Section 1
of the operate -
restrain characteristic
EndSection1
1.25 ·
IBase
1.25 ·
IBase
End of section 1 of the
operate - restrain
characteristic, as
multiple of
IBase
EndSection2
3.00 ·
IBase
3.00 ·
IBase
End of section 2 of the
operate - restrain
characteristic, as
multiple of
IBase
SlopeSection2
40%
40%
Slope of the operate -
restrain characteristic
in Section 2, in
percent
SlopeSection3
80%
80%
Slope of the operate -
restrain characteristic
in Section 3, in
percent
IdMinHigh
2.00 ·
IBase
2.00 ·
IBase
Temporarily
decreased sensitivity,
used when the
protected circuit is
connected to a power
source (Remark 4)
IntervIdMinHig
30.000 s
30.000 s
Time interval when
IdMinHig is active
(Remark 5)
Idunre
5.50 ·
IBase
5.50 ·
IBase
Unrestrained operate,
(differential) current
limit (Remark 6)
CrossBlock
1
1
CrossBlock logic
scheme applied
(Remark 7)
I2/I1Ratio
15%
15%
Second to
fundamental
harmonic ratio limit
I5/I1Ratio
25%
25%
Fifth to fundamental
harmonic ratio limit
NegSeqDiff
On
On
Internal/external fault
discriminator On
(Default)
Table continues on next page
1MRK 505 343-UEN B
Section 6
Differential protection
135
Application manual
Содержание Relion 670 series
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