Toshiba GRT100 Series Instruction Manual page 216

Type of transformer
1ct-1
I
I
I
1REF
HV
3ct-1
HV
LV
HV
1a
1b
1c
1nCT
LV
I
1N
3nCT
3ct-1
I
3a,
MV
2nCT
I
LV
2N
3nCT
I
3N
3REF
I I I
3a, 3b, 3c
1ct-1 HV
I
1a
I
1b
I
1c
1nCT
1REF
I
1N
MV 2ct-1
2nCT
I
2N
 215 
MV
I
3N
3REF
I I
3b, 3c
2ct-1
I
2a
I
2b
I
2c
2REF
MV
LV
I
2a
I
2b
I
2c
2REF
6 F 2 S 0 7 8 9
Scheme switch setting
1REF = 1I0
3REF = 1I0
2REF1 to 5 = OFF
2REF = 1I0
3REF = 1I0
1REF1 to 5 = OFF
1REF = 1I0
2REF1 to 5 = OFF
3REF1 to 5 = OFF
2REF = 1I0
1REF1 to 5 = OFF
3REF1 to 5 = OFF