Add fans to transformer
Add fans to transformer
(OP)
We have a 480-208/120v,
1000/1333 KVA transformer with load running close to its OA rating. We decided to install custom made fans, such that air is forced to go through windings. I know this might not equal it's FA rating, but how can we calculate new rating? we can measure all peremeters including KVA, current, temperature...etc.






RE: Add fans to transformer
"I have not failed. I've just found 10,000 ways that won't work." Thomas Alva Edison (1847-1931)
RE: Add fans to transformer
RE: Add fans to transformer
RE: Add fans to transformer
RE: Add fans to transformer
RE: Add fans to transformer
I understand that the transformer in question is a dry-type, and not oil-filled.
GG
"I have not failed. I've just found 10,000 ways that won't work." Thomas Alva Edison (1847-1931)
RE: Add fans to transformer
RE: Add fans to transformer
Add load until you reach that temp, with fans running.
To be on the safe side, put 4 fans per winding, 2 on the front, 2 on the back, for a total of 12.