GE 745 Instruction Manual page 112

AUTO-CONFIGURATION
Transformer Wdg. Connection
type
Y/d30°/d30° 1
2
3
Y/d30°/d210° 1
2
3
Y/d150°/y0° 1
2
3
Y/d150°/d30° 1
2
3
Y/d150°/ 1
d210°
2
3
5–16
Table 5–1: Transformer types (Sheet 4 of 11)
Voltage Phase
phasors shift
WYE 30° lag
DELTA
30° lag
DELTA
30° lag
WYE 30° lag
DELTA
30° lag
DELTA 180° lag
210° lag
WYE 150° lag
DELTA
150° lag
WYE 150° lag
0°
WYE 150° lag
DELTA
150° lag
DELTA 120° lag
30° lag
WYE 150° lag
DELTA
150° lag
DELTA 300° lag
210° lag
Transformer Wdg.
type
Y/d30°/d150° 1
0° 2
0° 3
Y/d30°/d330° 1
0° 2
3
Y/d150°/ 1
y180°
0° 2
3
Y/d150°/ 1
d150°
0° 2
3
Y/d150°/ 1
d330°
0° 2
3
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
Connection Voltage
phasors
WYE
DELTA
30° lag
DELTA 240° lag
150° lag
WYE
DELTA
30° lag
DELTA
330° lag
WYE 150° lag
DELTA
150° lag
WYE 330° lag
180° lag
WYE 150° lag
DELTA
150° lag
DELTA
150° lag
WYE 150° lag
DELTA
150° lag
DELTA 180° lag
330° lag
Phase
shift
30° lag
0°
30° lag
0°
60° lag
0°
0°
0°
0°