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To get the speed of DC motor below the normal speed without wastage of electrical energy we use __________________

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To get the speed of DC motor below the normal speed without wastage of electrical energy we use __________________

(a) Ward Leonard control

(b) Rheostatic control

(c) Any of the Ward Leonard or rheostatic method can be used

(d) Not possible

I have been asked this question during an online interview.

My question is based upon Ward Leonard Speed Control Method in chapter DC Motors of DC Machines

1 Answer

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The correct option is (a) Ward Leonard control

The best explanation: Ward Leonard method of speed control is most efficient method of speed control in all aspects. We can get constant torque operation and constant power operations as well, with this method.

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