What gas would indicate partial discharge in oil?

[tallyson71]

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

[pearlston]

"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

[SecondGen]

10. In insulating oil, what gas would indicate partial discharge in the oil?

Hydrogen or Acetylene
Edit: It's methane.

https://testguy.net/attachment.php?attachmentid=194&d=1500599314&thumb=1

[randyw8483]

Hydrogen or Acetylene

https://testguy.net/attachment.php?attachmentid=194&d=1500599314&thumb=1

It is methane, refer to Duval's triangle.