Recent questions tagged rotor

1 answer 39 views

The rotor impedance of a slip ring induction motor is (0.1 + j0.6)Ohm/ ph . The resistance/ph to be inserted into rotor to get maximum torque at starting should be

asked May 3, 2018 in Electrical machine design by Shimroz123
2 answers 43 views

In dc machines, the armature windings are placed on the rotor because of the necessity for  (1) electromechanical energy conversion (2) generation of voltage (3) commutation (4) development of torque

asked May 1, 2018 in Electrical Machine by Shimroz123
1 answer 32 views

Ratio of the rotor reactance X to the rotor resistance R for a two-phase servo motor (A) is equal to that of a normal induction motor (B) is less than that of a normal induction motor (C) is greater than that of a normal induction motor (D) may be less or greater than that of a normal induction motor

asked Apr 28, 2018 in Electronics Engineering by Shimroz123
1 answer 28 views

The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as?

asked Mar 20, 2018 in Synchronous machine by Shimroz123
1 answer 27 views

Salient pole rotor is use for which speed?

asked Mar 18, 2018 in Alternator by Shimroz123
1 answer 19 views

Which rotor is use for high speed in turbo alternators?

asked Mar 18, 2018 in Alternator by Shimroz123
1 answer 32 views

An electric motor in which both stator field and rotor rotates with same speed is called?

asked Mar 18, 2018 in Synchronous machine by Shimroz123
1 answer 57 views

What is the rotor of a motor?

asked Dec 16, 2017 in Electrical machine design by Quiz
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