Insulation technology for medium voltage solid insulated switchgear

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2003-10-19 DOI:10.1109/CEIDP.2003.1254863

T. Shioiri, J. Sato, T. Ozaki, O. Sakaguchi, T. Kamikawaji, M. Miyagawa, M. Homma, K. Suzuki

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引用次数: 15

Abstract

The authors have developed solid insulated switchgear that does not use SF/sub 6/ gas at all as an insulating medium. This paper describes the insulating material technology, diagnostic technology for partial discharge, insulation technology of the vacuum disconnecting switch and aerial composite insulation technology which are applied to this solid insulated switchgear. A new epoxy resin, which was dispersedly configured with spherical silica and rubber particles, was developed. The insulation performance of this resin is 50% higher compared with filling of alumina. Utilizing the features of the solid insulated switchgear, a diagnostic technology for partial discharge employing an acoustic emission (AE) sensor was developed. A vacuum disconnecting switch with high insulation reliability was developed applying Weibull distribution to dielectric breakdown in a vacuum. The insulated parts of insulating rods of circuit-breakers and disconnecting switches were miniaturized through composite insulation.

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中压固体绝缘开关柜的绝缘技术

作者开发了固体绝缘开关柜，完全不使用SF/sub - 6/气体作为绝缘介质。介绍了应用于该固体绝缘开关柜的绝缘材料技术、局部放电诊断技术、真空断路开关绝缘技术和架空复合绝缘技术。研制了一种由球形二氧化硅和橡胶颗粒分散构成的新型环氧树脂。与填充氧化铝相比，该树脂的绝缘性能提高50%。利用固体绝缘开关柜的特点，研制了一种基于声发射传感器的局部放电诊断技术。将威布尔分布应用于真空介质击穿，研制了一种绝缘可靠性高的真空断路开关。通过复合绝缘，实现了断路器和断开开关绝缘棒绝缘部件的微型化。

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2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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