Interested to Buy Any Domain ? << Click Here >> for more details...
why transformer ratings in kva?
- 99 Answers
- 231973 Views
- Bhel, College School Exams Tests, DOW, Emco, Esab, GE, KCP, PGCVL, Sodexo, TCS, vtps, Wipro, I also Faced
- E-Mail Answers
Answer Posted / k.boopathi
There are 2 losses in transformer. One is copper loss which depends on current and the other is iron loss which depends on voltage. These two factors are not affected by the power factor. This is why transformers are rated in KVA and not KW. Single phase KVA = Amps x Volts/1000. Single phase KW = Amps x Volts x pf/1000. 3 phase KVA = Amps x Volts x 1.73/1000. 3 phase KW = Amps x Volts x 1.73 x pf/1000
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How is operate breaker failure scheme in substation
how to wiring it with contactor and timer together
Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm
why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?
which protection used in power plant?
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
What is the purpose of stand by earth fault protection for transformer ?
hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.
WHY L-G FAULT IS MORE SEVERE IN TERMS OF RRRV?
what shall be no load voltage of 132/33 kV transformer ? is it 33 kv of 34.5 kV
Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?
What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?
in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?
If breaker is undefined position, first step to do.
