Actually why the transformers are rated in KVA.?

Answer Posted / pradyumna171

Transformer gives apparent power,it is the supply power to load and the power actually used by the load is the
real power/true power/active power. Apparent power of 100 KVA has capacity to give 100 KW resistive load and for inductive load of o.8 pf it give 80 KW,and at 0.7 pf the same has capacity to give 70 KW . but the manufacturing company does not know which type of load to be connected across the transformer,therefore in simple we can say " DUE TO KNOWN POWER FACTOR THE TRANSFORMER ARE RATED IN KVA" and it is meaning less discuss about Iron loss & copper loss because the Inverted and UPS are rated in KVA but there is no iron loss & copper loss And in other hand in DC Generator there is Iron loss &copper loss but it is rated in KW not in KVA, because there is no angle between current and voltage(pf) in DC supply.

PRADYUMNA CHANDRA PANDA
Mob No- 9439721208

Is This Answer Correct ?    8 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Tell me all plants load factors i.e which plant operating on which load?

1559


what is servo motor & how does it work.

1504


Testing report of Earthing of 3.15 MVa PTR.

2132


What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

1516


how is the connection of a 3 phase ct trivector meter done on a pole mounted transformer

916






how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

1495


how can check the resistance of battery contact?

1782


How a band pass filter is constructed?

631


What is the effect of pi controller on the system performance?

618


how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?

1557


I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

1695


WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

1820


What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?

1511


Do you know what is dry-out test in x'mer

2218


why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.

1526