How to calculate kva? what is the formula.
- 21 Answers
- 36695 Views
- MSIL, UltraTech, Watt, Welding Aids, I also Faced
- E-Mail Answers
Answer Posted / prithvi narayan sinha
kw/kva=cos(phi)
therefore kVA=kW/cos(phi)
| Is This Answer Correct ? | 21 Yes | 5 No |
Post New Answer View All Answers
what is difference between elr and R eartl realy.
how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?
why the pf of semiconductor device is improved the electrical devices
what is the safety points of vaccum circuit breaker.
Which level of the Transformer oil got dielectric strengh? And why?
working function importance of mdc meter
What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
What is the control action?
if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current
How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?
What is the polarization index value ? (Pi value)and simple definition of polarization index ?
What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer
How is magnetic leakage reduced?
