The 22 kV phase-to-phase (A - B) VT is connected to input 9.
The 22 kV open delta connected VT (residual voltage) is connected to input 10.
1.
Set the 145 kV current transformer input 1.
1.1. Set
CTStarPoint1
to
ToObject
(The CT secondary is grounded towards the protected transformer)
1.2. Set
CTSec1
to
1 A
(The rated secondary current of the CT)
1.3. Set
CTPrim1
to
300 A
(The rated primary current of the CT)
2.
Set current inputs 2 and 3 to the same values as for current input 1.
3.
Set the 22 kV current transformer input 4.
3.1. Set
CTStarPoint4
to
ToObject
(The CT secondary is grounded towards the protected transformer)
3.2. Set
CTSec4
to
1 A
(The rated secondary current of the CT)
3.3. Set
CTPrim4
to
2000 A
(The rated primary current of the CT)
4.
Set current inputs 5 and 6 to the same values as for current input 4.
5.
Set the 145 kV neutral point current transformer input 7.
5.1. Set
CTStarPoint7
to
ToObject
(The CT secondary is grounded towards the protected line)
5.2. Set
CTSec7
to
1 A
(The rated secondary current of the CT)
5.3. Set
CTPrim7
to
300 A
(The rated primary current of the CT)
Current input 8 is intended for connection of a low voltage side
neutral point CT. In this application the input is not used.
6.
Set the voltage transformer inputs 9 and 10.
6.1. Set
VTSec9
to
110 V
(The rated secondary voltage of the VT, given as phase-phase voltage)
6.2. Set
VTPrim9
to
22 kV
(The rated secondary voltage of the VT, given as phase-phase voltage)
6.3. Set
VTSec10
to
110 V/√3
(The rated secondary voltage of the VT, given as phase-phase voltage)
6.4. Set
VTPrim10
to
22 kV
(The rated secondary voltage of the VT, given as phase-phase voltage)
1MRK 511 286-UUS A
Section 3
REC650 setting examples
41
Application manual
Содержание REC650 ANSI
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