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高压电器  2015 

特高压断路器开断试验回路用球隙开关

DOI: 10.13296/j.1001-1609.hva.2015.10.015, PP. 97-102

Keywords: 特高压断路器,开断试验回路,球隙开关,试验

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Abstract:

文中针对特高压断路器试验回路设计了一种具有光触发能力的球隙开关,阐述了这种球隙开关的技术方案和原理,并且分析了影响球隙开关性能的几个重要因素。根据球隙的结构特点进行了电场有限元近似计算和分析,确定了在不同的间隙下开关的自放电临界电压以及触发放电临界电压等关键参数,从而为球隙开关应用于不同的额定电压下的间隙选择以及触发电压选择等提供了依据。最后研制了球隙开关的样机,通过现场自放电和触发放电试验证明了文中的分析是基本正确的,所提的设计方案是可行的。

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