Interested to Buy Any Domain ? << Click Here >> for more details...
why transformer rating in KVA or MVA instead of KW n MW??
- 3 Answers
- 14357 Views
- I also Faced
- E-Mail Answers
Answer Posted / mohamed iqbal
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 ? | 16 Yes | 0 No |
Post New Answer View All Answers
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
can mini-curcuit supply MIL-tested transformer !
State thevenin’s theorem?
Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?
In parallel operation time both NGR’s close or not close if both close what will happen
What is the tube exial fan?
Why let through energy not considered for ACB breaker while cable sizing?
WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
What is meant by control system?
I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate
How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?
I would like to know that the fault curretn at base load and at 10% generation will be same? Fault level of BUS remain same with different generation?
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.
