XLPE Cable Insulation Enhancement Mechanism Based on Isopropoxide Catalyzed Siloxane

Fan Liu; Xian Tao Tao; Lin Yang; Ping Liu; Kai Zhou

doi:10.4028/www.scientific.net/AMR.554-556.277

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 554-556XLPE Cable Insulation Enhancement Mechanism Based...

XLPE Cable Insulation Enhancement Mechanism Based on Isopropoxide Catalyzed Siloxane

Abstract:

In this paper, needle-shape insulation defect was made in XLPE cable samples. With high-voltage and high-frequency accelerated aging, water tree was formed inside XLPE layer. One group of the samples was injected siloxane catalyzed by isopropoxide for rejuvenation, and the breakdown voltage was significantly greater than new samples. Nano-inorganic particles were observed by scanning electron microscope (SEM) inside the breakdown channels of rejuvenated samples. The insulation enhancement mechanism is described in this paper based on the new discovery, that the insulating property of cables is enhanced by the nano-inorganic particles, because of its ability to inhibit the partial discharge damage inside the water tree channel.

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Periodical:

Advanced Materials Research (Volumes 554-556)

Pages:

277-281

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.554-556.277

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Online since:

July 2012

Authors:

Fan Liu, Xian Tao Tao, Lin Yang, Ping Liu, Kai Zhou

Keywords:

Damage Inhibition, Nano-Inorganic Particles, Partial Discharge (PD), Siloxane, XLPE Cable

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