GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual page 63

5 SETPOINTS
Table 5–1: TRANSFORMER TYPES (SHEET 7 OF 24)
TRANSFORMER WDG # CONNECTION
TYPE
Y/d30°/y0° 1
2
3
Y/d30°/y180° 1
2
3
Y/d30°/d30° 1
2
3
Y/d30°/d150° 1
2
3
GE Multilin
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VOLTAGE PHASE
PHASORS SHIFT
WYE 30° lag
(gnd 1/2)
DELTA 0°
30° lag
WYE 30° lag
(gnd 2/3)
0°
WYE 30° lag
(gnd 1/2)
DELTA 0°
30° lag
WYE 210° lag
(gnd 2/3)
180° lag
WYE 30° lag
(gnd 1/2)
DELTA 0°
30° lag
DELTA 0°
30° lag
WYE 30° lag
(gnd 1/2)
DELTA 0°
30° lag
DELTA 240° lag
150° lag
745 Transformer Management Relay
5.2 AUTO-CONFIGURATION
Table 5–1: TRANSFORMER TYPES (SHEET 8 OF 24)
TRANSFORMER WDG # CONNECTION
TYPE
Y/d30°/d210° 1 WYE
(gnd 1/2)
2 DELTA
30° lag
3 DELTA
210° lag
Y/d30°/d330° 1 WYE
(gnd 1/2)
2 DELTA
30° lag
3 DELTA
330° lag
Y/d150°/y0° 1 WYE
(gnd 1/2)
2 DELTA
150° lag
3 WYE
(gnd 2/3)
0°
Y/d150°/y180° 1 WYE
(gnd 1/2)
2 DELTA
150° lag
3 WYE
(gnd 2/3)
180° lag
VOLTAGE PHASE
PHASORS SHIFT
30° lag
0°
180° lag
30° lag
0°
60° lag
5
150° lag
0°
150° lag
150° lag
0°
330° lag
5-13