Give a list of the factors involved for selecting a factory drive.

Factors involved in selection of factory drives:

- Supply system	:  DC or AC
- Rating	:  kW, MW
- Drive	:  constant speed, Variable speed
- Special Condition	:  High starting torque, Hazardous location, Traction duty etc.
- User’s requirement	: Duty cycle, noise level, load      characteristics etc
- off load, load condition
-  Enclosures & cooling requirement.
- Environment condition
-  Applicable standards
-  Cost considerations

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