文档介绍：雾霾天气对绝缘子泄漏电流的影响摘要: 基于电容电流刚量的雾霾等效值方法,从预防性监刚的角度出发,确定了雾霾等效值的采集范围。在人工气候试验室里模拟雾霾气候组分特征, 模拟绝缘子设备在实际运行中所处的状态和环境, 通过绝缘子泄露电流在线监刚装置进行了大量雾霾模拟试验, 针对雾霾的盐密、灰密和湿度三个主要特征分析了雾霾对绝缘子泄漏电流的影响。通过积累大量的试验数据, 得出雾霾气候闪络危险报警门槛值和泄漏电流在线监刚危险报警门槛值, 修正了传统绝缘子泄漏电流监刚装置的设定限值,对实际运行的输电线路建设具有指导意义。关键词: 雾霾;人工气候试验室;绝缘子;泄漏电流 Effect of Haze Weather on Leakage Current of Insulators Abstract: Based on the measurement of haze equivalent tested through the capacitive current , the acquisition range of haze equivalent is determined for preventive monitoring. Considering the insulators are actual operation, ponent characteristics of haze are simulated in artificial climate laboratory by leakage current monitoring device of insulator. The effects of haze on leakage current of insulators are analyzed based on three main features of haze. Through the accumulation ofa large amount of test data , the haze flashover hazard warning threshold and leakage current monitoring hazard warning threshold are determined revise the limit values of leakage current , which have the instruction significance the construction of power transmission line. Key words: haze;artificial climate laboratory;insulator; leakage current 0 引言雾霾是大气污染物 被提出后才引起人们格外注意的天气现象。去冬今春我国中东部频繁出现大范围雾霆天气,覆盖面积超 140 万, 74个 重点监测城市中近半数遭遇严重污染。在关注其对人类健康影响的同时, 其对输变电设备的影响也引起了电力系统人们的担心。其中存在两类情况: 一是霾天气导致的绝缘了表面积污的增加;二是雾霾导致的湿沉降及其对绝缘了污闪电压的影响。本文主要讨论雾霾及其影响。雾是指大量微小水滴浮游空中,使水平能见度小于 1