General Information

Figure 7.4 — Stator Power Winding

Connections - 3-phase, 120/208V (6 Lead)

INTERNAL CONNECTIONS

E1

S1S1

 

S4

 

S4

 

L-L

 

 

00 (NEUTRAL)

 

S6

 

S5

 

 

 

 

S3

S6

S5

 

 

S2

 

 

 

 

E3

S3

 

 

S2

E2

 

 

 

 

 

 

 

 

L-N

 

Figure 7.5 — Stator Power Winding

Connections - 3-phase, 120/208V (12 Lead)

E1

S7S1

 

S10

S4

 

L-L

 

 

 

 

S12

S5

 

 

S9

S6

S11

 

S2

 

 

 

E3

S3

 

S8

E2

 

 

 

 

 

 

L-N

 

Figure 7.6 — Stator Power Winding

Connections - 3-phase, 346/600V (6 Lead)

E1

S1

INTERNAL

CONNECTIONS

 

 

L - L

S6

S4

 

 

00 (NEUTRAL)

 

 

S5

 

S3

 

S2

 

 

E3

L - N

E2

 

 

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ACConn007.RevB

3-PHASE ALTERNATORS ("DELTA" CONFIGURATION)

The Stationary Emergency Generator is designed to supply 3-phase electrical loads. Electric power is produced in the alternator power windings. These windings were connected at the factory to the main circuit breaker with a “Delta” configuration as shown in Figures 7.7 and 7.8.

The rated voltage between circuit breaker terminals E1-E2, E1-E3 and E2-E3 is 240V.

The rated voltage between E1 or E3 and the neutral point 00 is 120V.

Figure 7.7 — Stator Power Winding

Connections - 3-phase, 120/240V (6 Lead)

E2

S2 S6

INTERNAL

CONNECTIONS

L - L

S5S3

E1

S1

S4

E3

L - N 00 (NEUTRAL)

Figure 7.8 — Stator Power Winding

Connections - 3-phase, 120/240V (12 Lead)

 

E2

S2

S12

S5

S9

 

L - L

S8

S6

S11

 

S3

E1

S1

S10

E3

 

 

L - N

 

 

 

00 (NEUTRAL)

 

7-2