WHY TRANSFORMER IS MEASURED IN KVA?

Answer Posted / bhupinder

KVA mean Voltage x Current
and
KW mean Voltage x Current x Power factor
The only difference is power factor
Power factor depends upon load and its value varies from
0.5 to 1

As kw is depend upon the power factor , but kva does not
depends upon the power factor mean kva of any transformer
or generator does not change with power factor . SO to know
the correct power of transformer ,we use kva as it nothing
to do with load type or power factor value

Is This Answer Correct ?    28 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips

1079


what is subtransient , transient and steady stateac components

1711


sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used

1391


what is the meaning of impedance protected in instrument cooling fan

2790


100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

1834






What is step signal?

633


how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

2489


1. A bomber drops a bomb from an aircraft flying at 2000 km/hr. at an altitude of 7km. The speed at which the bomb will strike the earth would be

1476


What is the relationship between voltage,current & frequency?

1262


While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1450


How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

1741


Is MEN and RCD related to each other ?? IF yes then how??

1458


Explain how you intend to work under pressure to meet up with deadline target?

4708


how to find Harmonics and types as per the equipemnts

762


Can anyone tell the proper diagram of star delta starter????

1461