Diagnosis by Acetone for Deterioration of Breathing Transformers Containing an Adsorbent in the Insulating Oil.

摘要

Aging deterioration of transformers can be diagnosed by amounts of CO_2+CO and furfural decomposed from insulating papers. But, in case of breathing transformers containing an adsorbent in the insulating oil, CO_2 and CO gassesare exhausted through the breather and the furfural is almost adsorbed by the adsorbent. Therefore, in order to obtain the true values of each amount of CO_2+CO and furfural, some corrections for measured values are necessary.