GE 745 TRANSFORMER MANAGEMENT RELAY

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