影响环氧浇注电压互感器局部放电因素分析

Analysis of Factors Influencing Partial Discharge of Epoxy Resin Casting Voltage Transformers

局部放电水平是反应电压互感器绝缘性能的一项重要指标,局部放电量大小直接影响产品的使用寿命。也直接体现产品的技术设计、制造工艺、产品质量、应用材料等整体水平。局部放电量大,使用过程中会存在绝缘隐患,影响运行可靠性。通过对影响环氧浇注的电压互感器局部放电的因素进行分析,提出对应控制方法。

Partial discharge level is an important parameter indicating performance quality of voltage transformers.It will directly affect the life of the product.To ensure high reliability, more and more transformer manufacturers do the partial discharge test for their products.The factors are amalyzed which influence partial discharge of epoxy resin casting insulation voltage transformers, and some corresponding control measures are put forward.