CHAPTER 6: SETPOINTS
Table 6-1: Transformer types
Transformer
Wdg.
Connection
Type
2W External
1
WYE (gnd 1/2)
Correction
2
WYE (gnd 2/3) 0°
Y/y180°
1
WYE (gnd 1/2)
2
WYE (gnd 2/3) 180°
lag
Y/d150°
1
WYE (gnd 1/2)
2
DELTA (gnd 2/3)
150° lag
Y/d330°
1
WYE (gnd 1/2)
2
DELTA (gnd 2/3)
330° lag
D/d60°
1
DELTA (gnd 1/2)
2
DELTA (gnd 2/3)
60° lag
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Voltage
Phase
Transformer
Phasors
Shift
Type
(Φ
)
comp
0°
Y/y0°
0°
180° lag
Y/d30°
0°
150° lag
Y/d210°
0°
330° lag
D/d0°
0°
60° lag
D/d120°
0°
Wdg.
Connection
Voltage
Phasors
1
WYE (gnd 1/2)
2
WYE (gnd 2/3) 0°
1
WYE (gnd 1/2)
2
DELTA (gnd 2/3)
30° lag
1
WYE (gnd 1/2)
2
DELTA (gnd 2/3)
210° lag
1
DELTA (gnd 1/2)
2
DELTA (gnd 2/3) 0°
1
DELTA (gnd 1/2)
2
DELTA (gnd 2/3)
120° lag
S2 SYSTEM SETUP
Phase
Shift
(Φ
)
comp
0°
0°
30° lag
0°
210° lag
0°
0°
0°
120° lag
0°
6–29
Need help?
Do you have a question about the 345 and is the answer not in the manual?