Answer / aboli desale

Cu loss of t/f depends on current & Iron loss on
voltage.There is no effect of P.F. of load on losses &
i/p,o/p.Therefore t/F rating is in KVA.

Answer / ram

the power factor of a T/F is unknown which depends on load
so its rating is given in KVA.

What is the mulplying factor of trivector meter (11kv) having ct ratio 100/5 amp.

2 Answers  

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How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

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what is MC 61 relay

2 Answers  

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As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

2 Answers  

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why generaotr rating is in kva and dc motor in kw?

7 Answers   Bhel, NTPC,

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In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?

2 Answers   Cairn,

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what is the formula to find battery back up of ups?

3 Answers  

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How to put breaker in service / test position.

1 Answers   KSEB, L&T, Siemens,

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TRANSFORMERS WITH DC SUPPLY

0 Answers  

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Why insulation layer of a High Voltage cable is more than a current carrying cable?

3 Answers  

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What is use of starter and choke in tube light

0 Answers  

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We have a 1275KVA existing Transformer in a power plant project. Customer want to get it test & confirm whether it is a Dyn1 Transformer or not. Pleae let me know how to test it.

1 Answers   Allied Group,

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