ABB RELION 650 Series Applications Manual page 98

Section 6
Differential protection
Table 10:
Setting
Operation
NoOfTerminals
IBase (Global base)
TransfAonInpCh
TraAWind1Volt
TraAWind2Volt
ClockNumTransA
TransfBonInpCh
TraBWind1Volt
TraBWind2Volt
ClockNumTransB
ZerSeqCurSubtr
Table 11:
Setting
ChargCurEnable
IdMin
EndSection1
EndSection2
Table continues on next page
92
General settings
IED 1
On
3
600 A
2
220 kV
70 kV
1
3
220 kV
70 kV
1
On
Setting group N
IED 1
Off
IBase
0.35 ·
IBase
1.25 ·
IBase
3.00 ·
IED 2 Remarks
On Operation Mode: On
(active)
3 Number of current sources,
ends of the circuit
600 A Reference current of the
protection in the primary
(system) Amperes (Remark
1)
IBase is set in the Global
base values function
(GBASVAL).
1 Input currents on these
input channels will be
referred to the high voltage
side (Remark 2)
220 kV Transformer A, Y-side
voltage in kV
70 kV Transformer A, d-side
voltage in kV
1 LV d-side lags Y-side by 30
degrees
2 Input currents on these
input channels will be
referred to the high voltage
side (Remark 2)
220 kV Transformer B, Y-side
voltage in kV
70 kV Transformer B, d-side
voltage in kV
1 LV d-side lags Y-side by 30
degrees
On Zero-sequence currents are
subtracted from
differential and bias
currents (Remark 3)
IED 2
Off
IBase
0.35 ·
IBase
1.25 ·
IBase
3.00 ·
1MRK 505 363-UEN A
Remarks
Charging current not
eliminated (Default)
Sensitivity in Section 1
of the operate -
restrain characteristic
End of section 1 of the
operate - restrain
characteristic, as
IBase
multiple of
End of section 2 of the
operate - restrain
characteristic, as
IBase
multiple of
Application manual