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Vinodh
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Join Date: Jul 2010
Posts: 32

Transformers

01/09/2012 4:04 AM

What is direct hot spot measurement in transformers?? Whether it is applicable for all transformers or any certain restrictions followed???
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electricalexpert65
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Join Date: Oct 2009
Posts: 2061
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#1

Re: Transformers

01/09/2012 6:34 AM

Transformer manufacturers do a heat-run test on their transformers and they know the hottest spot in the winding during a rated load condition. It is better to install your temperature sensing device in the hottest spot to provide a good degree of thermal protection to the transformeer. It is applicable to all Power Transformers and to all Distribution transformers. Both to the Oil type as well as the Dry type.
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Vinodh
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Join Date: Jul 2010
Posts: 32
#2
In reply to #1

Re: Transformers

01/09/2012 10:20 PM

thank you sir for youer valuable reply!!!!!!
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