通过电阻涂层改善硅橡胶外壳复合衬套的性能

Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI:10.1109/ELINSL.2004.1380577

H.J. Wei, E. Cherney, S. Jayaram

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引用次数: 3

摘要

复合衬套安装法兰附近由于电场增强而产生的局部放电和复合衬套表面的干带电弧会导致绝缘材料劣化，导致衬套失效。研究了在复合高压衬套上涂阻性硅橡胶涂层的方法。FEMLAB/spl reg/软件模拟结果与实测结果吻合较好。湿室和盐雾室试验验证了耐硅橡胶涂层复合衬套具有优异的抗污染性能。

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Improvements to the performance of silicone rubber housed composite bushings by means of a resistive coating

Local discharges in the vicinity of the mounting flange of composite bushings due to the electric field enhancement and dry band arcing on the surface of composite bushings can cause insulating material degradation leading to failure of the bushing. A proposed solution to this problem by employing a resistive silicone rubber coating on composite HV bushings was investigated. Good agreement was obtained between computer software simulation by FEMLAB/spl reg/ and measurement results of potential and field distributions. Wetting and salt-fog chamber tests verified that the resistive silicone rubber coated composite bushings have superior contamination performance.

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Conference Record of the 2004 IEEE International Symposium on Electrical Insulation

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