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Elec467 Power Machines & Transformers

Elec467 Power Machines & Transformers . Electric Machines by Hubert, Chapter 12 Topic: Self-excited and compound generators, load distribution. Self-excited shunt generator. Changing the output voltage. Flux and current relationship.

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Elec467 Power Machines & Transformers

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  1. Elec467 Power Machines & Transformers Electric Machines by Hubert, Chapter 12 Topic: Self-excited and compound generators, load distribution.

  2. Self-excited shunt generator

  3. Changing the output voltage

  4. Flux and current relationship There is a incorrect connection in one of the above drawings. Which one is it? Examine the circuits using the right-hand rule for current flow.

  5. Short on the output

  6. Compensating windings Compensating winding are the stator coils wired to a separate DC source.

  7. Magnetization curve

  8. Adding a series inductor to a self-excited generator

  9. Motor design considerations

  10. Effect of adding a resistor to the series inductor of a self-excited generator • Adding a series inductor will increase the current flow. • Adding a resistor across the series inductor will change the rate at which the generator increase the current.

  11. Protection circuit prevents current reversal

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