三相组合式过电压保护器工频放电电压试验的分析

Analysis of Power Frequency Flashover Test on Over Voltage ProtectionDevice of Three Phase Combined Type

介绍了三相组合式过电压保护器(TBP)的主要特点;根据现场试验过程和试验数据,分析了TBP的工频放电特性;重点讨论了工频放电试验方法和产品结构等方面存在的问题,对产品设计的改进和试验方法提出了几点建议。

The main characteristics of the over-voltage protection device of three phase combined type(TBP)are intruduced;The spark-over characteristics of TBP at power frequency are analyzed based on the on-site testing practic and the testing data.The problems existing in the testing method of spark-over voltage at power frequency,TBP design and other aspects are also discussed.Advice on improving the design and testing method of the production is given.