GE 745 TRANSFORMER MANAGEMENT RELAY

5-12 745 Transformer Management Relay GE Power Management
5.2 AUTO-CONFIGURATION 5 SETPOINTS
5
3W External
Correction
1
WYE
(gnd 1/2)
0°
2
WYE
(gnd 2/3)
0°
0°
3
WYE
0°
0°
Y/y0°/d30°
1
WYE
(gnd 1/2)
30°
lag
2
WYE
(gnd 2/3)
0°
30°
lag
3
DELTA
30° lag
0°
Y/y0°/d150°
1
WYE
(gnd 1/2)
150°
lag
2
WYE
(gnd 2/3)
0°
150°
lag
3
DELTA
150° lag
0°
Y/y0°/d210°
1
WYE
(gnd 1/2)
210°
lag
2
WYE
(gnd 2/3)
0°
210°
lag
3
DELTA
210° lag
0°
Table 5–1: TRANSFORMER TYPES (Sheet 5 of 26)
TRANSFORMER
TYPE
WDG
#
CONNECTION
VOLTAGE
PHASORS
PHASE
SHIFT
Y/y0°/d330°
1
WYE
(gnd 1/2)
330°
lag
2
WYE
(gnd 2/3)
0°
330°
lag
3
DELTA
330° lag
0°
Y/y180°/d30°
1
WYE
(gnd 1/2)
30°
lag
2
WYE
(gnd 2/3)
180° lag
210°
lag
3
DELTA
30° lag
0°
Y/y180°/
d150°
1
WYE
(gnd 1/2)
150°
lag
2
WYE
(gnd 2/3)
180° lag
330°
lag
3
DELTA
150° lag
0°
Y/y180°/
d210°
1
WYE
(gnd 1/2)
210°
lag
2
WYE
(gnd 2/3)
180° lag
30°
lag
3
DELTA
210° lag
0°
Table 5–1: TRANSFORMER TYPES (Sheet 6 of 26)
TRANSFORMER
TYPE
WDG
#
CONNECTION
VOLTAGE
PHASORS
PHASE
SHIFT