Answer / chvnraja

Any device is rated depending on losses of the machine. In a
transformer the losses are iron losses which depends on
voltage and copper losses which depends on current so there
are no losses which depend on power factor hence transformer
is rated in KVA

Answer / rahul

In a transformer Losses(I^2R-Iron and Copper Losses)depends
on voltage(Volts) and current(Amps).so the rating wshould
be in KVA

Answer / a.muthukumar, vacon

Cu loss of a transformer depends on current and iron loss on voltage. Hence, total transformer loss depends on volt-ampere (VA) and not on phase angle between voltage and current. It is independent of load power factor. That is why rating of transformer is in KVA and not in KW.

Answer / nilamanineel@yahoo.com

but nobody did not say about alternator

Answer / deepak

this is because the KVA rating give active plus reactive
power components and the reactive power is associated with
losses of the machines. KW rating tells about the power
being transfered not the losses associated with the process.

Answer / aniket

as the is not known we cannot know the power factor so cant xpress in watts so in kva

How do you compute voltage drop and cable size over distance?

0 Answers  

which type of material is used for making motor encloser

3 Answers  

Can VFD step up to 60 Hz if it is designed to receive 50 Hz input?

3 Answers  

difference between ceiling fan

24 Answers   Altius Technologies, Raisoni, TCS, Uni Deritend,

what the main difference of the 3 phase and 2 phase power supply??

3 Answers  

how to calc. current for 5MVAR,50hz,33kv

1 Answers  

what is the need of capacitor in transmission lines?and how it works.

2 Answers   SCCL,

How many safety of Disel Generator

5 Answers   Sail,

What is the differance between vacuum breaker and vacuume contactor

1 Answers  

how to calculate of which rating transformer should be selected? take any example

2 Answers  

WHAT IS MODULATION AND NEED FOR MODULATION ?

1 Answers  

what is the solution for meger test failed the MV cable?

1 Answers