5-4 Generator Reconnection
TP-5631 7/96
12-Lead (Three-Phase) Generator Sets
NOTE
Current transformers (CTs) are used only on generator
sets equipped with controllers with meters.
NOTE
Position current transformers CT1, CT2, and CT3 with
dot or HI side toward generator set.
Three-phase, 12-lead generator sets are reconnectable
to the voltages and phases shown in Figure 5-6. If the
generator set is reconnected to obtain a different output
voltage, voltage regulator voltage adjustments may be
necessary to obtain desired voltage.
CT1
L1
7
10
12
9
11
8
CT2
L2
5
2
3
6
L0
1
4
60 HZ - 120/240V.- 1PH. 3 WIRE
50 HZ - 110/220V.- 1 PH. 3 WIRE
USED ON GENERATORS 20-100 KW ONLY
L3
CT3
3
6
L0
10
7
L1
CT3 NOT USED
TB2
METER SCALE
LAMP JUMPER
60 HZ - 120/240V. - 3PH. 4 WIRE DELTA
50 HZ - 110/220V. - 3PH. 4 WIRE DELTA
L2
CT2
8
11
2
5
CT3
L3
L1
CT1
6
3
12
9
7
10
1
4
TB2
UP V7 LO
METER SCALE
LAMP JUMPER
60 HZ - 120/240V. OR 120/208V. - 3 PH. 4 WIRE LOW WYE
50 HZ - 120/208V. OR 110/190V. - 3 PH. 4 WIRE LOW WYE
UP V7 LO
TB2 UP V7 LO
METER SCALE
LAMP JUMPER
1
4
11
8
CT2
L2
2
5
9
12
CT1
60 HZ - 277/480V. - 3 PH. 3 WIRE HIGH WYE
50 HZ - 220/380V. - 3 PH. 4 WIRE HIGH WYE
L1
L2
1
4
5
2
7
10 11
8
L0
12
9
CT3
6
3
L3
CT1
CT2
TB2
UP V7 LO
METER SCALE
LAMP JUMPER
L0
Figure 5-6. Generator Reconnection