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Which among the following is the example of Class Y?

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in Design of Electrical Machines by (687k points)
Which among the following is the example of Class Y?

(a) Varnish

(b) Insulation oil

(c) Paper

(d) Resins

The question was posed to me by my college director while I was bunking the class.

This key question is from Temperature Rise and Insulating Materials in chapter Electrical Engineering Materials of Design of Electrical Machines

1 Answer

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Correct option is (c) Paper

To elaborate: Varnish is an example of Class A. Even insulation oil is an example of Class A. Resins is an example of Class E.

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