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While selecting an electric motor for any application, we do not consider i. Cost ii. Size iii. Rating iv. Mechanical characteristics v. Electrical characteristics Amongst the given, select which is/are correct?

While selecting an electric motor for any application, we do not consider i. Cost ii. Size iii. Rating iv. Mechanical characteristics v. Electrical characteristics Amongst the given, select which is/are correct? Correct Answer None 

Selection of motor:

The selection of an electric motor depends primarily on the conditions under which it has to operate and the type of load it has to handle.

The main guiding factors for such selection are as follows:

1) Electrical characteristics:

  • Starting characteristics
  • Running characteristics
  • Speed control
  • Braking

2) Mechanical considerations:

  • Type of enclosure
  • Type of bearings
  • Method of power transmission
  • Type of cooling
  • Noise level

3) Size and rating of motors:

  • Requirement for a continuous, intermittent, or variable load cycle
  • Overload capacity

4) Cost:

  • Capital cost
  • Running cost


Hence,
From the given options everything is considered for the selection of an electric motor.

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