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Reconditioning of insulating oils by activated alumina

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1 Author(s)
Housley, J. E. ; Aluminum Company of America at Alcoa, Tenn.

THE use of insulating oil in electrical equipment carries with it the problem of prevention of deterioration when the oil is subjected to elevated temperatures in the presence of air. Deterioration may be accelerated by the presence of moisture and organic acid. This condition is found in certain types of transformers and oil-filled bushings.

Published in:

Electrical Engineering  (Volume:58 ,  Issue: 4 )