Series motor is not suited for traction duty due to which of the following account ?
Correct answer: B. Current surges after temporary switching off supply
- A. Less current drain on the heavy load torque
- B. Current surges after temporary switching off supply
- C. Self relieving property
- D. Commutating property at heavy load
Explanation
After a temporary supply interruption, the series-field flux collapses while the train is still moving; restoration can then produce a large transient current surge. The self-relieving torque characteristic is actually an advantage of the series motor in traction.
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