State factors for selection of motors as drive.

2 Answers

Answer :

Factors for selection of motor for electric drives: 1)Type of drive:- individual or group 2)Electrical supply:-whether it is AC or DC, 1 phase or 3 Phase 3) Nature of the load: constant or variable. 4) Speed Requirement: constant speed or variable speed operation. 5) Environmental condition: the condition of surroundings in plant. Explosive etc. 6) Efficiency: for precise output requirement high efficient motors are used. 7) Cost. 8) Motor Duty Cycle: continuous or intermittent operation.

Answer :

Following Factors governing / or are considered while selecting electric drive (Motor) for particular application:

Factors to be considered for selection of Electrical Drives:

1) Nature of Supply:- Whether supply available is AC, pure DC or rectified DC

2) Nature of Drive :-Whether motor is used to drive individual machines or group of M/c

3) Nature of Load: - Whether load required light or heavy starting torque or load having high inertia require high starting torque for long duration.

4) Electric Characteristics of drive: - Starting, Running, Speed control and braking characteristics of electric drive should be studied and it should be match with load.

5) Size and rating of motor: - Whether motor is continuously running, intermittently running or used for variable load cycle.

6) Mechanical Consideration: - Types of enclosure, Types of bearings, Transmission of power, Noise level, load equalization

7) Cost: - Capital, Running and maintenance cost should be less.

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