Answer / anil

the ratio between the KVA and kw is known as power factor
KVA is a kilovolt ampher and kw is kilowatt these two are the units used to express the power KWA is an apparant power and KW is an actual power .

Answer / dharmar.c

We r using KVA in transformers for metering purpose..for calculating copper loss we need Ammeter(A),and we need voltmeter(V) for calculating iron and core losses

what is the fuction of electrical transducer in control pannel?

6 Answers  

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What is the difference between surge and impulse?

4 Answers  

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what is diffrence between primary & secondry transformer?

3 Answers  

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i) in which cases should we go for neutral and where should we go for ground? ii) in domestic supply we are getting 230v a.c.and what is the amount of current?

2 Answers  

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is oil viscosity affect on motor current?

0 Answers  

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What is meant by directional power and reverse power relay ?

1 Answers   HAL,

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define transient state &steady state

1 Answers  

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

0 Answers   Hormozgan Steel,

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what is the reason for harmonics introduced in the line

2 Answers  

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2 Answers  

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what will happen if the input of a transformer is dc?

10 Answers   Hindalco,

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which is the slowest motor? and wt is speed ?

1 Answers  

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