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THEORY OF OPERATION | ||
| FIGURE E.3 – ROTOR FIELD FEEDBACK AND AUXILIARY POWER |
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| REACTOR |
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| OUTPUT |
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| TERMINALS |
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| STATOR |
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ENGINE | MECHANICAL |
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| ROTATION |
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| ROTOR | ROTOR |
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| SLIP |
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MAGNETO | RINGS |
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CIRCUIT |
| STATOR |
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| CAPACITOR |
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LOW OIL |
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SWITCH |
| CIRCUIT | CIRCUIT |
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| BREAKER | BREAKER |
RUN/STOP |
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| SWITCH |
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| RHEOSTAT | BRIDGE |
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| 230VAC | 115VAC |
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| RECEPTACLES | RECEPTACLES |
ROTOR FIELD FEEDBACK AND
AUXILIARY POWER
The AC voltage developed in the field winding is fed to the full wave bridge. The DC output of the bridge is fil- tered by the field capacitor and controlled by the out- put rheostat.
This filtered and controlled feedback voltage is fed to the rotor winding via the brush and slip ring configura- tion. As the feedback voltage is increased or de- creased, the outputs of the weld and auxiliary wind- ings are likewise increased or decreased.
When full field voltage is applied to the rotor and the engine is running at high speed (3700 RPM), a 230 VAC voltage is developed in the stator auxiliary wind- ing. This winding is tapped to provide 115 VAC. The two voltages (115 VAC and 230 VAC) are connected to the appropriate receptacles and offer 5500 watts (total) of AC power.
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NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion
