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If single phase supply is 220v. then why three phase supply is 660?

Answers were Sorted based on User's Feedback



If single phase supply is 220v. then why three phase supply is 660?..

Answer / simon

In india there is only 2 type of a.c supply I.e 240 v,440v only.

Is This Answer Correct ?    4 Yes 2 No

If single phase supply is 220v. then why three phase supply is 660?..

Answer / sumit kumar jha

no because one earthing is also present ..so 220v or 440v is perfect answer...same case two earthing also used in 3 phase supply but mainly one taking all times...

Is This Answer Correct ?    1 Yes 2 No

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