A new method for measuring the degradation level of transformer insulating oil in service

Author

Bae, Jin-Ho ; Chon, Young-Kap ; Kang, Young-Ku

Author_Institution

Dept. of Electr. Eng., Yeung Nam Univ., Taegu, South Korea

fYear

1990

fDate

3-6 Jun 1990

Firstpage

35

Lastpage

42

Abstract

The aging process in transformer insulating oil was studied by measuring the leakage current in a ceramic sensor. The current of the sensor shows a close relationship with the acid value and the breakdown voltage of the transformer oil. The sensor has excellent physico-chemical properties, such as lack of chemical reaction with the oil and stable adsorption of conductive impurities. Therefore, the experimental data show good reproducibility

Keywords

ageing; electric current measurement; electric sensing devices; insulating oils; power transformers; transformer insulation; acid value; aging process; breakdown voltage; ceramic sensor; conductive impurities; degradation level; leakage current; physico-chemical properties; stable adsorption; transformer insulating oil; Aging; Ceramics; Chemical sensors; Current measurement; Degradation; Impurities; Leakage current; Oil insulation; Petroleum; Power transformer insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1990., Conference Record of the 1990 IEEE International Symposium on

Conference_Location

Toronto, Ont.

ISSN

1089-084X

Type

conf

DOI

10.1109/ELINSL.1990.109703

Filename

109703