Title :
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
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;
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
DOI :
10.1109/CMD.2008.4580371
