Oil Analysis - Equivalent TCG %

[altwizard]

Dear Eng-tips Members,

I have been looking for some in-sight with 'Eqivalent Total Combustible Gas' percentage calculation , when it comes to interpreting results of a transformer oil test report.

I was wondering if there is a particular formula that is used to calculate this parameter?

Thank you.

 

[ausphil]

IEEE C57.104 shows the equation in section 6.3

It is hard to reproduce in this forum.

ausphil