GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual page 61

5 SETPOINTS
Table 5–1: TRANSFORMER TYPES (SHEET 3 OF 24)
TRANSFORMER WDG # CONNECTION
TYPE
D/y150° 1
2
D/y210° 1
2
D/y330° 1
2
Y/z30° 1
2
Y/z150° 1
2
Y/z210° 1
2
Y/z330° 1
2
GE Multilin
Courtesy of NationalSwitchgear.com
VOLTAGE PHASE
PHASORS SHIFT
DELTA 0°
WYE 210°
(gnd 1/2) lag
150° lag
DELTA 0°
WYE 150°
(gnd 1/2) lag
210° lag
DELTA 0°
WYE 30° lag
(gnd 1/2)
330° lag
WYE 30° lag
(gnd 1/2)
ZIG-ZAG 0°
(gnd 2/3)
30° lag
WYE 150°
(gnd 1/2) lag
ZIG-ZAG 0°
(gnd 2/3)
150° lag
WYE 210°
(gnd 1/2) lag
ZIG-ZAG 0°
(gnd 2/3)
210° lag
WYE 330°
(gnd 1/2) lag
ZIG-ZAG 0°
(gnd 2/3)
330° lag
745 Transformer Management Relay
5.2 AUTO-CONFIGURATION
Table 5–1: TRANSFORMER TYPES (SHEET 4 OF 24)
TRANSFORMER WDG # CONNECTION
TYPE
D/z0° 1 DELTA
2 ZIG-ZAG
(gnd 1/2)
0° lag
D/z60° 1 DELTA
2 ZIG-ZAG
(gnd 1/2)
60° lag
D/z120° 1 DELTA
2 ZIG-ZAG
(gnd 1/2)
120° lag
D/z180° 1 DELTA
2 ZIG-ZAG
(gnd 1/2)
180° lag
D/z240° 1 DELTA
2 ZIG-ZAG
(gnd 1/2)
240° lag
D/z300° 1 DELTA
2 ZIG-ZAG
(gnd 1/2)
300° lag
3W External 1 WYE
Correction (gnd 1/2)
2 WYE
(gnd 2/3)
0°
3 WYE
0°
VOLTAGE PHASE
PHASORS SHIFT
0°
0°
60° lag
0°
120°
lag
0°
180° lag
5
0°
240°
lag
0°
300°
lag
0°
0°
0°
0°
5-11