Explain why machinery used on a.c supply is usually rated
in KVA instead of KW?
Answer Posted / sugankumar
in ac machines the iron loss is depends on voltage(V)...
and the cu loss depends on current(I).... so the total
power depends on KVA.... in DC the voltage and current
depends on cu loss only so the DC power is calculated in
KW......
Is This Answer Correct ? | 19 Yes | 7 No |
Post New Answer View All Answers
what is metering cum synchronizing panel and how it is used?
how to calculate the earth mat design in 132 kv substation yard ????
How to calulate Locked rotor amper(LRA) for compressor type motors?
How can we select suitable capacity generator for three phase load (inductive load) and how to take study analysis in 3 three phase load system ?
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?
Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?
how is control wiring coding is done in a CRP panel ?
we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?
WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.
What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva
i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...
block diagram of 2 ups system connected in parallel mode?
How the over load setting for HT Motors calculated-provided in Numerical Relay
how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?