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what is onan, onaf, ofan, ofaf in transformer?

Answer Posted / yims

The above answers are not far from the truth.  However 
ONAN is Oil-immersed natural cooling
ONAF is Oil-immersed forced-air cooling
OFAN is Oil-immersed forced-oil natural cooling
OFAF is Oil-immersed forced-oil forced-air cooling
......I trust this helps.

Is This Answer Correct ?    8 Yes 13 No



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