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What gas would indicate partial discharge in oil?

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    What gas would indicate partial discharge in oil?

    Quote Originally Posted by ddd675 View Post
    10. In insulating oil, what gas would indicate partial discharge in the oil?
    "PARTIAL DISCHARGE is a fault of low level energy which usually occurs in gas-filled voids surrounded by oil impregnated material.
    The main cause of decomposition in partial discharges is ionic bombardment of the oil molecules.

    The major gas produced is Hydrogen. The minor gas produced is Methane."

    source - http://www.satcs.co.za/Transformer_Oil_Analysis.pdf

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    Quote Originally Posted by tallyson71 View Post
    "PARTIAL DISCHARGE is a fault of low level energy which usually occurs in gas-filled voids surrounded by oil impregnated material.
    The main cause of decomposition in partial discharges is ionic bombardment of the oil molecules.

    The major gas produced is Hydrogen. The minor gas produced is Methane."

    source - http://www.satcs.co.za/Transformer_Oil_Analysis.pdf
    Looking at different references, it would appear that both Acetylene or Hydrogen are indicators of partial discharge.

    source -http://www.netaworld.org/sites/default/files/public/neta-journals/NWwtr09_Hamrick.pdf

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    Quote Originally Posted by ddd675 View Post
    10. In insulating oil, what gas would indicate partial discharge in the oil?
    Hydrogen or Acetylene
    Edit: It's methane.

    Last edited by SecondGen; July 27, 2017 at 10:27 AM.

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    Quote Originally Posted by SecondGen View Post
    Hydrogen or Acetylene

    It is methane, refer to Duval's triangle.

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