Dielectric and Partial Discharge Properties of Insulating Rapeseed Oils

Author

Zou, Ping ; Li, Jian ; Sun, Caixin ; Chen, Xiaoling ; Zhang, Zhaotao

Author_Institution

Dept. of High Voltage & Insulation Eng., Chongqing Univ., Chongqing

fYear

2008

fDate

9-12 Nov. 2008

Firstpage

728

Lastpage

731

Abstract

This paper presents basic dielectric properties of a type of insulating rapeseed oil, including its breakdown voltage, relative permittivity, and dissipation factor. Inception voltages of partial discharges (PD) occurring in this type of insulating rapeseed oils are also presented. PDs in insulating rapeseed oils are not only detected by the pulse current method recommended by IEC 270, but also observed by a camcorder capable of observing corona. Experiment results of insulating rapeseed oils and insulating mineral oils are presented for comparison. Partial discharge inception voltages of insulating rapeseed oils are about 3.5 kV higher than insulating mineral oils. The observation results of corona camcorder also show that number of photons, generated by PDs in the insulating rapeseed oils, is greater than that in the insulating mineral oils under the same test voltage.

Keywords

biodegradable materials; corona; insulating oils; insulation testing; materials testing; partial discharge measurement; permittivity; video cameras; biodegradable oil; corona camcorder observation; dielectric breakdown voltage; dissipation factor; insulating mineral oil; insulating rapeseed oil; partial discharge measurement; permittivity; pulse current method; Corona; Dielectrics and electrical insulation; IEC standards; Minerals; Oil insulation; Partial discharges; Permittivity; Petroleum; Video equipment; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

High Voltage Engineering and Application, 2008. ICHVE 2008. International Conference on

Conference_Location

Chongqing

Print_ISBN

978-1-4244-3823-5

Electronic_ISBN

978-1-4244-2810-6

Type

conf

DOI

10.1109/ICHVE.2008.4774038

Filename

4774038