Install Manual
Installation Drawings
54 Installation Guidelines for Protector Diesel Generators
Figure 8-4. Stator Power Winding Connections— 
3-phase, 120/208V (6 Lead) 
Figure 8-5. Stator Power Winding Connections— 
3-phase, 120/208V (12 Lead) 
Figure 8-6. Stator Power Winding Connections— 
3-phase, 346/600V (6 Lead) 
Three-Phase Alternators (“Delta” Configuration)
The  Stationary  Emergency  Generator  is  designed  to
supply  three-phase  electrical  loads.  Electric  power  is
produced  in  the  alternator  power  windings.  These
windings  were  factory-connected  to  the  main  circuit
breaker with a “Delta” configuration as shown in Figure
8-7 and Figure 8-8.
Rated voltage between circuit breaker terminals E1–E2,
E1–E3 and E2–E3 is 240V.
Rated  voltage  between  E2  and  the  neutral  point  00  is
208V.  The  rated  voltage  E1–00  and  E3–00  is
approximately 120V.
NOTE: Voltage measured from E2 to 00 can greatly vary
when single-phase load is placed on alternator.
Figure 8-7. Stator Power Winding Connections— 
3-phase, 120/240V (6 Lead) 
Figure 8-8. Stator Power Winding Connections— 
3-phase, 120/240V (12 Lead) 
A Neutral B Internal connections
A Neutral B Internal connections
E3 E2
00
E1
L-L
L-N
S1
S1
S4
S4
S6
S6
S3
S3
S5
S5
S2
S2
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B
A
E3
E2
E1
L-L
L-N
S7
S1
S10
S4
S12
S6
S9
S3
S5
S11
S2
S8
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E1
S1
S6
S5
S4
S2
E2
S3
E3
L - N
L - L
00
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B
A
B Internal connections
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B
240 VAC
120 VAC
120 VAC
240 VAC
240 VAC
S2 S12
S11
S1
NB
S10
S3
E1
E3
E2
S5
S8
S9
S6
208 VAC
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