GE 745 TRANSFORMER MANAGEMENT RELAY Instruction Manual page 63

5 SETPOINTS
Table 5–1: TRANSFORMER TYPES (Sheet 7 of 26)
TRANSFORMER WDG
CONNECTION
TYPE #
WYE
1
(gnd 1/2)
WYE
Y/y180°/
2 (gnd 2/3)
d330°
180° lag
DELTA
3
330° lag
WYE
1
(gnd 1/2)
DELTA
Y/d30°/y0° 2
30° lag
WYE
3 (gnd 2/3)
0°
WYE
1
(gnd 1/2)
DELTA
Y/d30°/y180° 2
30° lag
WYE
3 (gnd 2/3)
180° lag
WYE
1
(gnd 1/2)
DELTA
2
Y/d30°/d30°
30° lag
DELTA
3
30° lag
GE Power Management
Table 5–1: TRANSFORMER TYPES (Sheet 8 of 26)
VOLTAGE PHASE TRANSFORMER
PHASORS SHIFT
330°
lag
150°
Y/d30°/d150°
lag
0°
30° lag
0°
Y/d30°/d210°
30° lag
30° lag
0°
Y/d30°/d330°
210°
lag
30° lag
0°
Y/d150°/y0°
0°
745 Transformer Management Relay
5.2 AUTO-CONFIGURATION
WDG
CONNECTION
TYPE #
WYE
1
(gnd 1/2)
DELTA
2
30° lag
DELTA
3
150° lag
WYE
1
(gnd 1/2)
DELTA
2
30° lag
DELTA
3
210° lag
WYE
1
(gnd 1/2)
DELTA
2
30° lag
DELTA
3
330° lag
WYE
1
(gnd 1/2)
DELTA
2
150° lag
WYE
3 (gnd 2/3)
0°
VOLTAGE PHASE
PHASORS SHIFT
30° lag
0°
240°
lag
30° lag
0°
180°
lag
5
30° lag
0°
60° lag
150°
lag
0°
150°
lag
5-13