变压器过热故障的诊断与分析处理  

Analysis and Treatment of Transformer's Overtemperature Fault Diagnosis

作　　者：卢德银 

机构地区：[1]金华送变电工程有限公司,浙江金华321000

出　　处：《供用电》2009年第1期52-54,共3页Distribution & Utilization

摘　　要：针对某220 kV变压器常规油色谱分析发现特征气体含量异常的情况,介绍了变压器过热故障的气体特征,用特征气体含量、产气速率和三比值法进行故障类型诊断,并通过电气试验确认故障类型和部位。从中得到一个重要启示:要特别重视变压器出厂的检查和新投运变压器的运行监视。In light of the abnormal gas composition appeared in a 220 kV transformer＇s routine oil chromatography analysis, the paper introduces the characteristics of gases during overtemperature, diagnoses fault type by using character gas content, gas-producing rate and three ratio method, determines fault type and location by means of electrical test. The enlightenment from the analysis is that it should pay attention to the check for produced transformers and to the supervisory for newly operating transformers.

关 键 词：色谱分析 故障诊断 过热故障 

分 类 号：TM752[电气工程—电力系统及自动化]