The Influence of Corona Intensity on the TSC of HTV Silicone Rubber

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI:10.1109/CEIDP.2008.4772935

L. Ding, Ying Liang, Y. Tu, Wei Wang, C.R. Li

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引用次数: 1

Abstract

In this paper, the influence of corona intensity on the TSC characteristics of HTV silicone rubber was investigated. Five levels of corona voltage were employed to deteriorate the samples respectively. The TSC was measured for the samples exposure different deteriorating duration. Experimental results show that the variation trend of TSC curves with the corona intensity is not identical at different deteriorating period. During the whole deterioration progress, the peak value of TSC gradually increases with the improvement of corona voltage. The temperature corresponded to TSC peak, however, becomes higher only when the corona voltage is elevated to a certain value at given corona deterioration period. Along with the prolonging of deterioration duration, the greater the corona intensity, the higher the temperature corresponded to TSC peak. The calculated traps parameters reveal that the trap energy level would not be deepened by strengthen of corona intensity. The reason was analyzed in this paper considering the microstructure variation.

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电晕强度对HTV硅橡胶TSC的影响

研究了电晕强度对HTV硅橡胶TSC特性的影响。采用5级电晕电压分别对样品进行劣化处理。测定了不同变质时间下样品的TSC。实验结果表明，在不同变质周期，TSC曲线随日冕强度的变化趋势并不相同。在整个劣化过程中，TSC的峰值随着电晕电压的提高而逐渐增大。在一定的电晕劣化周期内，只有当电晕电压达到一定值时，TSC峰值对应的温度才会升高。随着变质时间的延长，日冕强度越大，TSC峰对应的温度越高。计算的陷阱参数表明，电晕强度的增强不会加深陷阱能级。从微观组织变化的角度分析了产生原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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