SF/sub - 6/气体绝缘电力装置用EP/Al/sub - 2/O/sub - 3/-复合材料的优化

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319) Pub Date : 1999-10-17 DOI:10.1109/CEIDP.1999.804643

J. Seifert, M. Di Lorenzo, A. Herden, H. C. Kamer, R. Schifani

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引用次数: 0

摘要

高压气体绝缘变电站(GIS)或气体绝缘线路(GIL)设备的支架绝缘必须满足所应用复合材料的绝缘、机械和环境性能方面的特殊要求。本文的重点是应用粘接技术来提高Al/sub 2/O/sub 3/填料表面与环氧基之间的微观粘接或结合强度所达到的性能。通过改变填料类型和介质填料粒度，找到了最优的抗裂力学参数。除了常用的力学、介电和电学测试方法外，还采用了一种特殊的局部放电(PD)电阻测试方法(Cigre II法)来比较所研究复合材料的局部放电电阻率。

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Optimization of EP/Al/sub 2/O/sub 3/-composites for SF/sub 6/ gas insulated power apparatus

Support insulation in high voltage gas insulated substation (GIS) or gas insulated line (GIL) equipment must fulfill special requirements concerning the insulating, mechanical and environmental properties of the applied composite materials. This paper focuses on the performance reached by applying adhesion technology to increase the microscopic adhesion or bonding strength between Al/sub 2/O/sub 3/ filler surfaces and an epoxy matrix. The filler type and the medium filler grain size are varied to find an optimum in the mechanical crack resistance parameters. Besides the well-known mechanical, dielectric and electrical testing methods, a special partial discharge (PD) resistance testing method (Cigre II method) is applied to compare the PD resistivities of the investigated composites.

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1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)

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