SF6替代气体中绝缘子沿面闪络特性研究现状

摘要

This paper expounded the research status of insulators along-surface lfashover property in SF6 alternative gas now at home and abroad. Introduction was made to the factors impacting on insulators along-surface lfashover. It is pointed out that the air pressure and SF6 contents have the largest impact on the gas insulator lfashover property and the lfashover voltage usually increases with the linear increase of air pressure. Many factors such as the shape, contact situation, humidity, temperature, surface particle, length and roughness of insulators will impact on the lfashover property.%阐述了目前国内外对SF6替代气体中绝缘子沿面闪络特性的研究现状，介绍了气体中影响绝缘子沿面闪络的因素，指出气体的绝缘子闪络性能受气压和SF6含量的影响最大，闪络电压通常随气压增大而增大，并呈线性关系；绝缘子形状、接触情况、湿度、温度、表面粒子的长度、粗糙度等因素对闪络性能也有一定影响。