GE 745 Instruction Manual page 116

AUTO-CONFIGURATION
Transformer Wdg. Connection
type
D/d120°/ 1
y150°
2
3
D/d180°/d0° 1
2
3
D/d180°/ 1
d180°
2
3
D/d180°/ 1
y150°
2
3
D/d240°/d0° 1
2
3
5–20
Table 5–1: Transformer types (Sheet 8 of 11)
Voltage Phase
phasors shift
DELTA
DELTA 240° lag
120° lag
WYE 210° lag
150° lag
DELTA 180° lag
DELTA
180° lag
DELTA 180° lag
0°
DELTA
DELTA 180° lag
180° lag
DELTA 180° lag
180° lag
DELTA
DELTA 180° lag
180° lag
WYE 210° lag
150° lag
DELTA 240° lag
DELTA
240° lag
DELTA 240° lag
0°
Transformer Wdg.
type
0° D/d120°/ 1
y330°
2
3
D/d180°/ 1
d120°
0° 2
3
0° D/d180°/ 1
d300°
2
3
0° D/d180°/ 1
y330°
2
3
D/d240°/d60° 1
0° 2
3
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
Connection Voltage
phasors
DELTA
DELTA 240° lag
120° lag
WYE
330° lag
DELTA 120° lag
DELTA 300° lag
180° lag
DELTA
120° lag
DELTA 300° lag
DELTA 120° lag
180° lag
DELTA
300° lag
DELTA
DELTA 180° lag
180° lag
WYE
330° lag
DELTA 240° lag
DELTA
240° lag
DELTA 180° lag
60° lag
Phase
shift
0°
30° lag
0°
0°
0°
30° lag
0°