Answer / arvind arora

ratings are depand upon heating.in transformer heating is
due to coreloss whitch is depands on voltage and copper
loss whitch is depands on currrent.losses do not depands on
pf. for example a x'mer working on rated voltage and rated
current with load pf equals to zero has rated losses and
rated kva output.so thats why its rating is in kva.

Answer / siva

due losses are in kva

Answer / william lobo

All transformers are rated in KVA or MVA if they are big
size. This is because it has a particular capacity and we
cannot utilise beyond this capacity. suppose you have
100KVA transformer; then you cannot use more than 100kva
capacity. If you do either transformer will burnt out or
the circuit breaker will trip.

What are the tests to be done on circuit breaker?

1 Answers  

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how encoder works?

1 Answers   ITC Infotech,

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a 650 KVA diesel generator is 1500 rpm, voltage is 415V n full load amps is 805 something,when are applied load more than 400 amps it's voltage is dropping, what is the reasons...?

4 Answers  

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How can we explain that what is the power factor?

5 Answers  

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if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

0 Answers   Sail,

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How to select the cable size for the given load ?Pls explain the Formulae

3 Answers  

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can we connect both delta and star to the transformer secondary and for what reason?

5 Answers   Power Grid,

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1.what is use of isolation transformer. 2.Differance between KWH,KVAH,KVARH,KVA. 3.Main use of the CT and PT.

1 Answers  

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How can calculat the lode of transformer?

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DG use Rating KVA why

1 Answers  

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What is the difference between single phase, 2phase, and 3 phase motors?

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what is V0/V rating of cable

1 Answers  

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