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

Question Posted / anuragkotnala.sunrise

2 Answers
5239 Views
I also Faced
E-Mail Answers

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

Post New Answer

More Electrical Engineering Interview Questions

why are laminations used in constructing the field core?

3 Answers

diffrence between alternating and pulsating field?

1 Answers

how the arcing is made in ac electric arc furnace? ( between the three electrodes in any sequences or between the electrode & the charge(steel))

1 Answers

What is Electrical Engineering?

13 Answers L&T, NTPC, Wockhardt,

what is the meaning of cable Glanding can you explain brifly?

2 Answers

why receiving end voltage increases in a system when capacitive load is added

1 Answers

Why star pointed terminal have no current? how?

3 Answers

what is recovery voltage & transient voltage ?

1 Answers Bhel,

what is the unit of current

12 Answers RRB,

What phase difference between p and s winding of transformer

1 Answers MAHINDRA,

what is the stear deltaprinceple?

0 Answers

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

0 Answers Kaytech,

For more Electrical Engineering Interview Questions Click Here