环氧树脂绝缘浇注件表面金属涂敷层末端结构设计的探讨

发布时间：2018-03-21 18:49

本文选题：环氧树脂绝缘浇注件　切入点：表面金属涂敷层　出处：《高压电器》2014年12期 　论文类型：期刊论文

【摘要】：固体绝缘开关越来越被众多开关厂家所瞩目,但在环氧树脂绝缘浇注件的研发和生产过程中发现,绝缘浇注件外表面在喷涂金属涂敷层后,其原本的电场分布将会发生较大改变而引入诸多电性能方面问题,其中特别典型且具有共性的问题点就是在绝缘浇注件进(出)线套管附近的金属涂敷层末端会因类似于尖端放电的原因而导致局放水平超标的问题存在。根据三维有限元仿真分析及以往类似产品的相关研发和生产经验,提出了增加屏蔽网不改变金属涂敷层末端位置,增加裙边并改变金属涂敷层末端位置和增加带凹槽的裙边并改变金属涂敷层末端位置等3种解决方案。经实践证明,3种解决方案都是有效的、可行的。
[Abstract]:The solid insulating switch has been paid more and more attention by many switch manufacturers. However, in the process of research and production of epoxy resin insulating casting parts, it is found that the external surface of insulating castings is coated with metal coating. Its original electric field distribution will change greatly and introduce a lot of electrical performance problems. The particular typical and common problem point is that the end of the metal coating layer near the insulating cast-in-line sleeve will cause the partial discharge level to exceed the standard due to the reason similar to the tip discharge. Dimensional finite element simulation analysis and related R & D and production experience of similar products in the past, It is proposed that the end position of the metal coating layer should not be changed by increasing the shielding net. The three solutions are to increase the skirt edge and change the end position of the metal coating layer and to increase the edge of the metal coating layer and to change the end position of the metal coating layer. The practice shows that the three solutions are effective and feasible.
【作者单位】：麦克奥迪(厦门)电气股份有限公司;西安高压电器研究院有限责任公司;
【分类号】：TM215.1

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