OFWF heat losses to air

[davva]

Does anyone have any experience with oil filled water cooled transformers. I was trying to get an appreciation for the percentage of heat losses that would still be dissipated to the air.

 

[slavag]

Hi.
Please find attached thread.
thread238-223919
Best Regards.
Slava

 

[prc]

In a water cooled trf a small part of heat will be dissipated through tank surface 50-100m2 in large transformers.But in calculations we never consider this as some spare additional capacity is always provided in cooler to take care of blocking of tubes with time.

If you explain your exact requirement, I can answer.