GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual page 68

5.2 AUTO-CONFIGURATION
Table 5–1: TRANSFORMER TYPES (Sheet 17 of 26)
TRANSFORMER WDG
TYPE #
1
D/d120°/
2
d120°
3
1
D/d120°/
2
d180°
3
5
1
D/d120°/
2
y150°
3
1
D/d120°/
2
y330°
3
1
D/d180°/d0° 2
3
5-18
VOLTAGE PHASE
CONNECTION
PHASORS SHIFT
120°
DELTA
DELTA
120° lag
DELTA
120° lag
120°
DELTA
DELTA
120° lag
DELTA
300°
180° lag
DELTA
DELTA
240°
120° lag
WYE
210°
(gnd 2/3)
150° lag
DELTA
DELTA
240°
120° lag
WYE
(gnd 2/3) 30° lag
330° lag
180°
DELTA
DELTA
180° lag
DELTA
180°
0°
745 Transformer Management Relay
Table 5–1: TRANSFORMER TYPES (Sheet 18 of 26)
TRANSFORMER WDG
TYPE
lag
D/d180°/
0°
d120°
0°
lag
0°
D/d180°/
d180°
lag
0°
D/d180°/
lag
d300°
lag
0°
lag D/d180°/
y150°
lag
0°
lag
5 SETPOINTS
VOLTAGE
CONNECTION
# PHASORS
1 DELTA
DELTA
2
180° lag
DELTA
3
120° lag
1 DELTA
DELTA
2
180° lag
DELTA
3
180° lag
1 DELTA
DELTA
2
180° lag
DELTA
3
300° lag
1 DELTA
DELTA
2
180° lag
WYE
3 (gnd 2/3)
150° lag
GE Power Management
PHASE
SHIFT
120°
lag
300°
lag
0°
0°
180°
lag
180°
lag
300°
lag
120°
lag
0°
0°
180°
lag
210°
lag