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How many discs are used in suspension insulators for 220kV?(a) 3(b) 4(c) 8(d) 14The question was posed to me by my college professor while I was bunking the class.My question is from Insulating Materials topic in chapter Electrical Engineering Materials of Design of Electrical Machines

Answer»

The correct CHOICE is (d) 14

Easy EXPLANATION: 3 discs are USED when VOLTAGE is 33kV. 4 discs are used when voltage is 66kV. 8 discs are used when voltage application is 132kV.



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