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Type of transformer
2ct-1
MV
LV
2ct-2
I
I
I
1a,
1b,
1c
1ct-1
1ct-1
1ct-2
HV
2nCT
I
2N
I
I
I
3a,
3b,
3c
HV
MV
1nCT
I
1N
1ct-3
I
3a,
HV
MV
1nCT
I
1N
1ct-3
217
Scheme switch setting
2REF = 2I0
1REF1 to 5 = OFF
I
2a
3REF1 to 5 = OFF
I
2b
I
2c
2REF
1REF = 3I0
I
I
I
2a,
2b,
2c
1ct-2
2REF1 to 5 = OFF
3REF1 to 5 = OFF
1REF
I
I
3b,
3c
1REF = 3I0
2REF1 to 5 = OFF
3REF1 to 5 = OFF
I
1a
I
1b
I
1c
1REF
I
I
3a
2a
I
I
3b
2b
I
I
3c
2c
6 F 2 S 0 7 8 9
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