What is the avergae difference between OTI and WTI for EHV
Power transformer?
Answer Posted / k.prakashchandra
The above answer given by me is not true in all cases.Those
were the readings recorded on 220/110 KV auto
transformer.The WT is higher than OT as WTI is close to the
source of heat.The difference between WT and OT depends on
cooling and oil circulation.More the difference worse the
cooling efficiency.The difference is about 20 %(220 KV) to
40% (110KV) of temperature rise in WT ,as observed in case
of the above Tr.But WT of tertiary was found to be less than
the OT
| Is This Answer Correct ? | 4 Yes | 5 No |
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