why transformer ratings in kva?

Answer Posted / er.kulwinder singh

the iron losses of the transforfomer are occuring even at no
load which depends upon tje operating voltage.Cu losses
comes into play when transfomer is loaded(even though at no
load these also occur but are negligible as compared to iron
losses),Cu losses depends upon load current.As power factor
of the load is not included,that's why this is rated in kva
not in kw

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is difference between isolation and ultra isolation transformer?, what is the method of testing ?

3837


some basic standard questions on transformer.

1335


What is the most essential condition for the voltage build up for a d.c. Shunt generator?

679


solar energy light efficiency & disadvantages?

1573


What is the technical difference between On delay timer and a Star delta timer?

958






WHAT IS THE USE OF PIG TAIL IN WINDOW CT ?

1938


what should be correct gas pressures to be a 1.5 ac unite

1078


how to design the heater in temperature control unit to heat 50KL of water?

1436


Explain about c.t?

709


what is the main parts of transformer? how it is functioning? pls giv the ans briefly.

1464


sir vizag steel ka junior trainee ka paper kitne number ka ayega

1775


List out the the types of Mounting Light fixture?

1209


hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

1517


What is open loop and control loop systems?

704


What are the advantages and disadvantages of the ac motors?

626