Answer Posted / chandrakar.amita
BECAUSE POWER FACTOR OF THE LOAD IS UNKNOWN.
AS WE KNOW
P=VI*PF
IS POWER FACTOR IS UNKNOWN THAN
P= V*I SO THE RATING WILL BE KVA
| Is This Answer Correct ? | 8 Yes | 10 No |
Post New Answer View All Answers
What are the advantages of nichols chart?
Please brief what is sinewave
What are the relays in ACB and VCB
Why should we hire you over the others waiting to be interview?
one electromagnet is called
What is the RME and explain the full form and what is the RME work?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
what are the analog quality input for protection function?what are minimum reqiments?
11 kV line deraction check by an Engineer.
What is oscillator circuit?
What is self exciting?
What is meant by cold loop test in instrument
why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor
What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?
how to generator maintenance (A Check, B check,Etc)
