Effect of humidity on breakdown of low density polyethylene film due to partial discharge

Author

Putra Waldi, Eka ; Murakami, Yoshinubu ; Nagao, Masayuki

Author_Institution

Toyohashi Univ. of Technol., Toyohashi

fYear

2008

fDate

21-24 April 2008

Firstpage

655

Lastpage

658

Abstract

We have been studying the breakdown characteristic of air-polymer composite insulation due to partial discharge (PD) under repetitive pulse voltage application using needle-plane electrode system. The purpose of this study is to clarify the effect of varied humidity on threshold frequency at the breakdown air polymer composite insulation caused by partial discharge in air gap. The result showed that the threshold frequency shifted to low frequency by the increase of relative humidity. The observation results using thermograph showed that the surface temperature at the higher relative humidity with increasing frequency of pulse more early dissipated.

Keywords

air gaps; composite insulators; electric breakdown; humidity; partial discharges; polymer films; air gap; air polymer composite insulation; low density polyethylene film breakdown; needle-plane electrode system; partial discharge; relative humidity; repetitive pulse voltage application; surface temperature; threshold frequency; Breakdown voltage; Electric breakdown; Electrodes; Frequency; Humidity; Insulation; Partial discharges; Plastic films; Polyethylene; Polymers; Electrical Breakdown; Partial-discharge; Relative Humidity;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis, 2008. CMD 2008. International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1621-9

Electronic_ISBN

978-1-4244-1622-6

Type

conf

DOI

10.1109/CMD.2008.4580371

Filename

4580371