Abnormal dga
Abnormal dga
(OP)
Dear all,
I have this problem with my dga result on tranformer 6545 kva 11 kv to 254 v , co 390, co2 3663, ch4 482, c2h2 0, c2h4 560, c2h6 224, h2 2361 , tdcg 4031, according to duval said thermal fault over 700 deg c..what should i do with this transformer?
I have this problem with my dga result on tranformer 6545 kva 11 kv to 254 v , co 390, co2 3663, ch4 482, c2h2 0, c2h4 560, c2h6 224, h2 2361 , tdcg 4031, according to duval said thermal fault over 700 deg c..what should i do with this transformer?






RE: Abnormal dga
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If we learn from our mistakes I'm getting a great education!
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
As far as PD detection, this link explains it.
http:
RE: Abnormal dga
And ,of course, I am not an optimist.
As methane, ethane, ethylene and hydrogen are very high values [even for age of 10 years old transformer] that could indicate partial discharge or even arcing.
The TTR deviations are also very high [21%] that could be short-circuit on all three phases-mainly on R.
This phenomenon could happen if -short-circuiting the protection-the transformer was energized a few times on short-circuited cable or equipment.
The oil should be purged and a close examination of the windings could be required.
RE: Abnormal dga
RE: Abnormal dga
RE: Abnormal dga
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(2B)+(2B)' ?
RE: Abnormal dga
RE: Abnormal dga