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gaurav.glory
Associate

Join Date: Jul 2011
Posts: 32

Dehydration of Transformer

12/22/2011 12:05 PM

dear sir,

i have a 250 kva transformer. it has covered it's 6 years working days. i want to know about dehydration of transformer i mean what is the schedule for dehydration of transformer. can i do dehydration on my transformer ?

i have heard that regular heating and cooling warms up winding of transformer and dehydration can harm varnish and may cause internal short ckt.
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SolarEagle
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#1

Re: dehydration of transformer

12/22/2011 12:59 PM

This explains it...

http://www.ars-altmann.com/pubdoc/18082009e.pdf

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lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#2

Re: dehydration of transformer

12/22/2011 2:28 PM

For the record, dehydration is the removal of water from an object. You seem to mis-understand the definition. Or, maybe I mis-understand you.
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PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3

Re: Dehydration of Transformer

12/23/2011 5:09 AM

What does the user manual say on the topic?

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electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#4

Re: Dehydration of Transformer

12/29/2011 6:14 AM

Do you mean Oil filteration?
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