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Topic Title: Transformer Oil
Topic Summary: any experience with vegetable oil?
Created On: 11 June 2010 01:05 AM
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 11 June 2010 01:05 AM
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Joined: 03 December 2003


I am looking at a project problem where I have been asked to propose risk reduction ideas for consideration. I am currently looking at Coppers Envirotemp FR3 Fluid oil that is vegetable based.

Has anyone had experience with using this type of oil and have you had any issues?

 11 June 2010 11:41 AM
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I used it in the UK on a project for an american client - it was a standard requirement of thiers for both thier insurance and corporate social responsibility. The TX's ( 4 x 2MVA) have been in close to 3 years and do tend to get a fair bit of abuse due to changing process loads etc - no negative aspects to report at this stage.

Our design initially proposed "MIDEL" as a tranformer fluid, I recall the characteristics of FR3 were slightly better on most counts



Let the wind blow you, across a big floor.
 14 June 2010 01:16 PM
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I work for a transformer manufacturer in the UK and have used FR3 a number of times over the last few years. Cooper recommend that the transformer must be in a sealed tank. We are also manufacturing a FR3 cooled transformer at the moment.

EDF have some large units in service currently undergoing some in service monitoring produced by two of the largest uk manufacturers. I don't work for them, but have experience with my own company.

To date we have a few FR3 transformers in service - my company have had no issues reported to us. In the UK traditionally Midel fluid is preferred, but we have seen FR3 specified more regularly recently.

IET » Energy » Transformer Oil

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