NDLI: Effect of silica particles on electrical treeing initiation in silicone rubber

Content Provider	IEEE Xplore Digital Library
Author	Zhou Yuan-xiang Liu Rui Hou Fei Xue Wen-bin Zhang Xu
Copyright Year	2012
Description	Author affiliation: School of electrical Engineering, Zhengzhou University, Zhengzhou, 461000, China (Xue Wen-bin) \|\| State Key Lab of Control and Simulation of Power Systems and Generation Equipment, Dept. of Electrical Engineering, Tsinghua University, Haidian District, Beijing 100084, China (Zhou Yuan-xiang; Liu Rui; Hou Fei; Zhang Xu)
Abstract	Silicone rubber (SIR) widely used in the insulation of the prefabricated power cable accessories is actually a kind of polymer composite which is usually composited by neat SIR and several weight percentages of silica (SiO2) particles. The aim of dispersing SiO2 powders into the SIR is mainly to enhance the mechanic properties of the polymer. Some research indicates that the particles may also affect the electrical treeing progress of the polymer composite. Electrical treeing is one of the main causes of degradation and break down of solid insulating material such as SIR. In this article, a serial of SIR samples with different weight percentages of SiO2 particles were made, a classic needle-plate electrode system was used to test their electrical treeing initiation performance and an optical microscope system was founded to observe the electrical treeing progress. In the experiment, the AC voltage applied on the electrodes was raised at a certain rate and when the electrical trees initiated in the SIR samples, the voltages and the photos of the trees were recorded. By comparing the results of experiment, it was found that when the weight percentages were under a threshold value, the SiO2 particles hindered the electrical tree growth in the polymer composites. This work afforded experimental evidence to the research on the electrical treeing in polymers.
Starting Page	609
Ending Page	611
File Size	2995314
Page Count	3
File Format	PDF
ISBN	9781467312530
ISSN	00849162
e-ISBN	9781467312523
e-ISBN	9781467312516
DOI	10.1109/CEIDP.2012.6378854
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polymers Mechanical factors Morphology Needles Rubber Power cables
Content Type	Text
Resource Type	Article

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