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amitabha0107
Power-User

Join Date: Feb 2011
Location: Shimurali, Westbengal,India
Posts: 119

Oil Filled Transformer Oil Catch Pit Sizing Procedure?

01/03/2013 6:14 AM

What is the procedure of calculating oil catch pit sizing of a oil filled transfrmer (outdoor)?

References indicate that some person take 300mm extra from the max oil containing part whereas few take 1.5m.So what is the procedure?
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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
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#1

Re: Oil filled Transformer oil catch pit sizing procedure?

01/03/2013 6:54 AM

In manufacturing industry, a secondary containment bund has to be capable of containing 110% of the volume of the liquid that is normally stored in the main tank. That might help, perhaps?

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RAMConsult
Guru
Engineering Fields - Power Engineering - New Member

Join Date: May 2007
Location: NYC metropolitan area.
Posts: 3230
Good Answers: 444
#2

Re: Oil filled Transformer oil catch pit sizing procedure?

01/03/2013 7:25 AM

Volume of oil in transformer = Volume of pit + a safety factor. The procedure to find the safety factor is to purchase a set of the appropriate standards and/or consult with the local AHJ (Authority Having Jurisdiction). Consulting an anonymous site for free information will get you advice that is worth every penny you paid for it. Hopefully your client expects more than that, especially when environmental matters are at issue.

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lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#3

Re: Oil Filled Transformer Oil Catch Pit Sizing Procedure?

01/04/2013 3:39 PM

We know you have access to the internet.

Why not use it, to find such official documents as:

Indian Standard Specification for Power Transformers

PowerTips: Requirements of Transformer Installations in India

Doing so reduces the likelyhood of your being flamed (or fired) because you aren't properly prepared.
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