Test Analysis of Silicone Rubber Aging Detection Based on Microwave Transmission Method

doi:10.3969/j.issn.1008-0198.2023.02.003

Hunan Electric Power ›› 2023, Vol. 43 ›› Issue (2): 14-18.doi: 10.3969/j.issn.1008-0198.2023.02.003

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Test Analysis of Silicone Rubber Aging Detection Based on Microwave Transmission Method

LI Huihui¹, ZHANG Boming^2,3, LI Zijin^2,3, LI Peng^2,3, WU Tian^2,3

1. State Grid Hubei Electric Power Company Limited,Economic and Technical Research Institute, Wuhan 430077, China;
2. Hubei Provincial Engineering Technology Research Center for Power Transmission Line (China Three Gorges University),Yichang 443002, China;
3. College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, China

Received:2023-02-28 Revised:2023-03-01 Online:2023-04-25 Published:2023-05-06

Abstract

Abstract: Aiming at the aging problem of shed and sheath of composite insulator, an aging detection method of silicone rubber material based on microwave transmission method is proposed. The artificial accelerated aging test of silicone rubber is carried out, and the microwave nondestructive testing platform is built to carry out the microwave nondestructive testing test of aging silicone rubber. The variation law of transmission parameter S₂₁ of silicone rubber with different aging degrees is analyzed, and the aging detection mechanism of silicone rubber by microwave transmission method was revealed by numerical simulation. The test results show that after the aging of silicone rubber, due to the change of its dielectric properties, the amplitudes of S₂₁ will change,and the aging degree of sillicone rubber can be identified by the value of ΔS₂₁. The research is of great significance to the aging detection of composite insulators.

Key words: composite insulators, silicone rubber, aging, microwave transmission method, transmission parameter

CLC Number:

TM855

LI Huihui, ZHANG Boming, LI Zijin, LI Peng, WU Tian. Test Analysis of Silicone Rubber Aging Detection Based on Microwave Transmission Method[J]. Hunan Electric Power, 2023, 43(2): 14-18.

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Test Analysis of Silicone Rubber Aging Detection Based on Microwave Transmission Method

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