Title :
Heat Effect of Discharge on Breakdown of Air-Polymer Composite Insulation
Author :
Waldi, Eka P. ; Murakami, Y. ; Hozumi, N. ; Nagao, M.
Author_Institution :
Toyohashi Univ. of Technol.
Abstract :
We have been studying the breakdown characteristic of air-polymer composite insulation under repetitive pulse voltage application using needle-plane electrode system. The purpose of this study is to clarify the effect of heat by discharge on breakdown of air polymer composite insulation. The effect of thermal insulation between low density polyethylene (LDPE) film and plane electrode was investigated. The sudden drop in the number of pulses to breakdown was correlated with the cumulative temperature rise at the film surface exposed to the discharge. Thermal insulation reduces the number of pulses to breakdown, and the phenomena successfully explained by numerical analysis of the thermal circuit
Keywords :
composite insulating materials; numerical analysis; partial discharge measurement; polyethylene insulation; thermal insulation; LDPE; air-polymer composite insulation; breakdown characteristics; cumulative temperature; film surface; heat effect; low density polyethylene film; needle-plane electrode system; numerical analysis; partial-discharge; repetitive pulse voltage application; thermal circuit; thermal insulation; Breakdown voltage; Electric breakdown; Electrodes; Plastic films; Plastic insulation; Polyethylene; Polymers; Pulse circuits; Surface discharges; Temperature;
Conference_Titel :
Properties and applications of Dielectric Materials, 2006. 8th International Conference on
Conference_Location :
Bali
Print_ISBN :
1-4244-0189-5
Electronic_ISBN :
1-4244-0190-9
DOI :
10.1109/ICPADM.2006.284229
