Discuss the method of speed control of a dc series motor

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1. Explain through sketch and derivations the speed-torque characteristic of a differentially compound dc motor.

2. Advance the methods of varying the shunt field and the series field excitation of a dc machine.

3. Discuss the method of speed control of a dc series motor.

4. How is a shunt motor started? Why it should not be started direct on line?

Reference no: EM131265692

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