Moisture measurement of transformer oil using thin film capacitive sensor

Author

Islam, Tarikul ; Khan, Md Firoz A. ; Khan, Shakeb A.

Author_Institution

Electr. Eng. Dept., Jamia Millia Islamia, New Delhi, India

fYear

2014

Firstpage

1

Lastpage

5

Abstract

Present work deals with the development of an online moisture measurement scheme in a transformer using thin film parallel electrode capacitive sensor. The fabrication of the sensor is done with a capacitive porous alumina (γ-Al₂O₃) dip coated by sol gel technique having two parallel gold electrodes on a substrate of alumina. The execution, analysis, results and applications of the scheme is discussed. The electrical characteristics of the thin film capacitive sensor with change in temperature and moisture in transformer oil is studied. The proposed scheme has the potential to determine the online moisture in transformer at various temperatures.

Keywords

alumina; capacitive sensors; electrodes; gold; moisture measurement; porous materials; power transformer testing; sol-gel processing; thin film sensors; transformer oil; Al₂O₃; Au; capacitive porous alumina; electrical characteristics; gold electrodes; online moisture measurement scheme; sol gel technique; thin film parallel electrode capacitive sensor; transformer oil; Electrodes; Moisture; Oil insulation; Power transformer insulation; Temperature; Temperature sensors; power transformer; thin film capacitive sensor; transformer oil;

fLanguage

English

Publisher

ieee

Conference_Titel

Power India International Conference (PIICON), 2014 6th IEEE

Print_ISBN

978-1-4799-6041-5

Type

conf

DOI

10.1109/34084POWERI.2014.7117671

Filename

7117671