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I have recently run across large transformer cooling ratings I am not familiar with and cannot find in several engineering reference books.
Typically a rating may have several MVA/MVA/MVA number size ratings followed by cooling rating of OA/FA/FOA (Oil-Air/Forced Air [fans]/Forced Oil-Air [fans & pumps].
Does anyone know the meaning of ONAN/ONAF/ONAF?
Typically a rating may have several MVA/MVA/MVA number size ratings followed by cooling rating of OA/FA/FOA (Oil-Air/Forced Air [fans]/Forced Oil-Air [fans & pumps].
Does anyone know the meaning of ONAN/ONAF/ONAF?