How to know the VA rating of a transformer

piyush07
Questions:1
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Best Answers:0

Hello to all

I am an electrical engineer and in an interview I was asked to tell the MVA rating of a transformer of few KV , and nothing was given means neither the power factor and nor the current , so I want to ask you people is there any way to determine the MVA rating of the transformer from the KV or vice-versa.

Please tell me with an example if possible.

Thank you

Asked by piyush07 on 9/11/2011 3:56:04 PM

Steven
Questions:1
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Not really. Choose any kV and look at a manufacturers catalogue and there will be a large range of MVA. The only thing you can probably say is that the bigger the kV, the larger that transformer as generally engineers will increase the voltage to transmit more power.

I'm reading a Siemens guide and they have typical ranges of 100 kVA to 30 MVA for what they call Small Power, 40 to 250 MVA for Medium Power and 200 to over 1000 MVA for Power Transformers.

Answered by Steven on 9/12/2011 12:49:38 AM

3 1

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