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Thread: Bolts for oil-filled transformer

  1. #1
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    Bolts for oil-filled transformer

    The oil-filled transformer has an upper section, which is bolted to a gasketed flange of the oil tank. Transformer has about 2-3 psi of nitrogen, which "helps" in some oil buildup around bolts/ nylon nuts. I realize that nothing is perfect in this world, but is there some remedy for it, like special bolts/nuts, etc?

  2. #2
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    is it over filled?
    over heating?

    try evenly tightening the bolts a few lb-ft
    or a new gasket

    without a pic or oil loss qty hard to gauge if it is a problem
    The difference between genius and stupidity is that genius has its limits.

  3. #3
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    The company I worked for before I retired made nylon coated nuts, bolts and washers for caustic environments.

    But as far as I can see there is no reason for the conservator to be insulated from the main tank so I’m confused as to what you’re trying to achieve.
    The reports of my death are greatly exaggerated.

  4. #4
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    Quote Originally Posted by Ingenieur View Post
    is it over filled?
    over heating?

    try evenly tightening the bolts a few lb-ft
    or a new gasket

    without a pic or oil loss qty hard to gauge if it is a problem
    Oil loss isn't a factor, rather a nuisance, like those droplets hanging on some bolts. Obviously the gasket is not as perfect as it suppose to be, and replacing it would come at price, and it's not guaranteed this would fix a problem.
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  5. #5
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    You need to learn how to explain things.

    That's not a leak; it's a calibrated expansion relief fitting.

  6. #6
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    Quote Originally Posted by MAC702 View Post
    You need to learn how to explain things.

    That's not a leak; it's a calibrated expansion relief fitting.
    lol "calibrated"? "relief fitting?" people maintaining these xformers never heard of those. Elaborate on those a bit more. There is a nitrogen relief valve on transformer, but the original question was about oil leaks.

  7. #7
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    Quote Originally Posted by moonshineJ View Post
    lol "calibrated"? "relief fitting?" people maintaining these xformers never heard of those. Elaborate on those a bit more. There is a nitrogen relief valve on transformer, but the original question was about oil leaks.
    I guess I needed a smilie with that? Did you pass on that answer?

  8. #8
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    Quote Originally Posted by MAC702 View Post
    I guess I needed a smilie with that? Did you pass on that answer?
    Two posts, 0 bits of information, keep going spamspamspam

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  10. #10
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    it could just be improper torq on those bolts. apply proper torq spec and see if it tightens any. if not then it would suggest the seal has an issue in some way and oil is making its way to the threading and oozing to the outside.

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