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How many number of insulation classes are present with respect to electrical equipment?(a) 5(b) 6(c) 7(d) 8The question was posed to me by my college professor while I was bunking the class.The above asked question is from Temperature Rise and Insulating Materials in portion Electrical Engineering Materials of Design of Electrical Machines

Answer»

The correct choice is (c) 7

The best I can explain: There are 7 classes of insulation with respect to electrical EQUIPMENT. They are Class Y, Class A, Class E, Class B, Class F, Class H, Class C.



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