电网技术2018，Vol.42Issue(6)：1992-2000,9.DOI:10.13335/j.1000-3673.pst.2017.2578
交流斜面法试验中的泄漏电流分析与电弧辨识
Leakage Current Analysis and Arc Identification in AC Incline Plane Test
摘要
Abstract
Composite insulator shed materials must have outstanding performance resisting tracking and erosion to insure reliability in long-term service. Inclined plane test (IPT) is a common testing method for materials' resistance of tracking and erosion, and leakage current analysis is an important tool for investigating IPT severity. In this paper, a novel arc identification algorithm was designed for AC IPT, and the leakage currents of high temperature vulcanized silicone rubber (HTV) samples in 4.5 kV standard IPT were analyzed. It turned out that the arc parameter distributions of HTV samples possess long-tail effects. Due to the long-tail effects, arc parameters would not strictly comply with normal or log-normal distribution. According to moving average curves of arcing time, erosion processes of HTV samples were divided into slow-and fast-erosion stages. Arc parameters almost maintained stable in slow-erosion stage, but steeply changed when the samples entered into fast-erosion stage.关键词
复合绝缘子/耐漏电起痕与电蚀损性/斜面法试验/泄漏电流/电弧放电Key words
composite insulator/resistance of tracking and erosion/inclined plane test/leakage current/arcing分类
信息技术与安全科学引用本文复制引用
徐森,仵超,梁曦东,刘瑛岩,刘博,黄瑞平..交流斜面法试验中的泄漏电流分析与电弧辨识[J].电网技术,2018,42(6):1992-2000,9.基金项目
国家电网公司科技项目(GY71-15-048)：绝缘子交流积污规律、导线气动特性仿真方法和直流油纸绝缘结构放电机理研究。Science and Technology Project of State Grid Corporation of China (GY71-15-048): Research on Pollution Accumulation Characteristic of AC Insulators, Aerodynamic Characteristics and Numerical Simulation Method of Transmission Lines and Discharge Mechanism of Oi-Paper Insulation Structure under DC Voltage. （GY71-15-048）
