Research on DC Breakdown and Flashover Characteristics of PI with Different Temperature

Tian Ye Niu; Jia Xin Wu; Ying Wen Li; Dong Sheng Xu; Lu Li; Lai Jun Wang; Rui Zhang; Kai Chen; Li Zhang; Hua Zhang

doi:10.4028/www.scientific.net/KEM.709.11

Paper Titles

Preface, Committees

Moisture Effects on Patch Bonded Composite Repairs
p.3

Comparative Investigation on the Failure Modes of Natural Kenaf/Epoxy Reinforced Composite Hexagonal Tubes
p.7

Research on DC Breakdown and Flashover Characteristics of PI with Different Temperature
p.11

Effect of Magnetic Field Strength on Carbide Precipitation Behavior in W₆Mo₅Cr₄V₃High Speed Steel during Medium Temperature Tempering
p.15

The Influence of High-k Material/SiO₂ Gate Stacks on Direct Gate Tunneling Current of Cylindrical Surrounding-Gate MOSFETs
p.19

Experimental Study on the Plant Dye Sensitized TiO₂ Electrode
p.23

Effect of Glycidyl Methacrylate (GMA) Content on Grafting Yield and Mechanical Properties of GMA Grafted Poly(Lactic Acid) Prepared by Melt Mixing Method
p.27

The Konjac/Chitosan Microspheres Prepared by Emulsion Crosslinking Method
p.32

HomeKey Engineering MaterialsKey Engineering Materials Vol. 709Research on DC Breakdown and Flashover...

Research on DC Breakdown and Flashover Characteristics of PI with Different Temperature

Abstract:

The electrical characteristics of insulating materials play a key role on the working performance and operation reliability of power equipment. With the rapid development of superconducting technology in recent years,the working temperature of high temperature superconducting power equipment can be controlled around the liquid nitrogen temperature. Due to its excellent dielectric performance and mechanical properties, polyimide have been widely used in power equipment at room temperature. However, polyimide, as a kind of cryogenic insulating materials, is rarely reported at present. Therefore, the study of the insulating characteristics of polyimide at the cryogenic temperatures is of great significance. The DC breakdown property and flashover performance of polyimide are tested around room temperature (300K) and liquid nitrogen temperature (78K). The results show that temperature has some effects on the DC breakdown property and flashover performance of polyimide.

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Periodical:

Key Engineering Materials (Volume 709)

Pages:

11-14

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.709.11

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Online since:

September 2016

Authors:

Tian Ye Niu*, Jia Xin Wu, Ying Wen Li, Dong Sheng Xu, Lu Li, Lai Jun Wang, Rui Zhang, Kai Chen, Li Zhang, Hua Zhang

Keywords:

Breakdown Property, DC, Flashover, Liquid Nitrogen Temperature, Polyimide

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