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jay gan
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Join Date: Sep 2010
Posts: 3

Transformer Loading - Maximum Efficiency

01/18/2011 3:46 AM

at what loading does a transformer operate at maximum efficiency??
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PWSlack
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#1

Re: transformer

01/18/2011 3:53 AM

At the loading stated on the manufacturer's information sheets.

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nesubra
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#2

Re: Transformer Loading - Maximum Efficiency

01/19/2011 5:08 AM

The maximum eff occurs when variable losses = fixed losses.This close to 50% of the rating.So it is better to operate two transformers at half load instead of loading one fully and other as standby.

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yushar
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Join Date: Jan 2011
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#3

Re: Transformer Loading - Maximum Efficiency

01/19/2011 5:46 AM

what happen if transformer overloaded? will it caused voltage drop? or it will overheat (while the volatge is maintained)?
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67model
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#4

Re: Transformer Loading - Maximum Efficiency

01/19/2011 6:34 PM

A transformer operates at maximum efficiency when copper loss = magnetizing losses.

The designed ratio of copper to iron loss at rated load depends on the load pattern of the transformer over its life and an assessment of the first cost versus running costs. In some cases, small size and weight may be more important than efficiency.
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