合成材料老化与应用2024，Vol.53Issue(3)：55-58,4.
干式电抗器浇注绝缘材料电痕化特性研究
Research on the Electrical Tracking Characteristics of Pouring Insulation Materials for Dry-type Reactors
刘晗 1魏怡 2王询 1石磊1
作者信息
- 1. 国网唐山供电公司,河北唐山 063000
- 2. 国网唐山市丰润区供电公司,河北唐山 063000
- 折叠
摘要
Abstract
To address the problem of electrical trace deterioration occurring on the surface of pouring insulation materials for dry-type reactors,experiments were conducted using epoxy resin and other materials.The electrical tracking experimental platform was established to measure and analyze the electrical tracking discharge characteristics and material erosion situation,including the characteristics of partial discharge,corrosion and changes in hydrophobicity of materials,and the Fourier transform infrared images of epoxy resin insulation materials before and after discharge erosion were analyzed.The experiments show that the electrical tracking process of insulation materials such as epoxy resin has gone through initial,stable,developmental,and explosive periods.The flashover discharge during the development period is the main reason for the carbonization of insulation materials,and the addition of aluminum oxide helps to improve the electrical tracking resistance of epoxy resin.In the process of electric tracking,with the change of surface morphology and the generation of surface products,the roughness of the material surface rises in general,and the surface roughness rises the fastest in the discharge outburst period.The changes in epoxy resin materials at different stages provide a basis forjudging insulation performance.关键词
环氧树脂/耐电痕化/红外光谱/表面粗糙度Key words
epoxy resin/tracking resistance/infrared spectrum/surface roughness分类
通用工业技术引用本文复制引用
刘晗,魏怡,王询,石磊..干式电抗器浇注绝缘材料电痕化特性研究[J].合成材料老化与应用,2024,53(3):55-58,4.
