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5.2 AUTO-CONFIGURATION
Table 5–1: TRANSFORMER TYPES (SHEET 17 OF 24)
TRANSFORMER
WDG # CONNECTION
TYPE
D/d180°/d0°
1
2
3
D/d180°/d120°
1
2
3
5
D/d180°/d180°
1
2
3
D/d180°/d300°
1
2
3
D/d180°/y150°
1
2
3
5-18
Courtesy of NationalSwitchgear.com
VOLTAGE
PHASE
PHASORS
SHIFT
DELTA
180° lag
DELTA
0°
180° lag
DELTA
180° lag
0°
DELTA
120° lag
DELTA
300° lag
180° lag
DELTA
0°
120° lag
DELTA
0°
DELTA
180° lag
180° lag
DELTA
180° lag
180° lag
DELTA
300° lag
DELTA
120° lag
180° lag
DELTA
0°
300° lag
DELTA
0°
DELTA
180° lag
180° lag
WYE
210° lag
(gnd 2/3)
150° lag
745 Transformer Management Relay
Table 5–1: TRANSFORMER TYPES (SHEET 18 OF 24)
TRANSFORMER
WDG # CONNECTION
TYPE
D/d180°/y330°
1
DELTA
2
DELTA
180° lag
3
WYE
(gnd 2/3)
330° lag
D/d240°/d0°
1
DELTA
2
DELTA
240° lag
3
DELTA
0°
D/d240°/d60°
1
DELTA
2
DELTA
240° lag
3
DELTA
60° lag
D/d240°/d240°
1
DELTA
2
DELTA
240° lag
3
DELTA
240° lag
D/d240°/y30°
1
DELTA
2
DELTA
240° lag
3
WYE
(gnd 2/3)
30° lag
5 SETPOINTS
VOLTAGE
PHASE
PHASORS
SHIFT
0°
180° lag
30° lag
240° lag
0°
240° lag
240° lag
0°
180° lag
240° lag
0°
0°
0°
120° lag
330° lag
GE Multilin
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