摘要
电气设备的发热不仅会影响设备的电气特性,同时还会危及设备绝缘的安全,生产中的许多电气事故都是由发热引起的,因此,解决此类问题的关键就是研究设备产生发热的机理。目前,在电气设备的红外测温研究中,对发热故障的诊断,是基于电流型故障致热和电压型故障致热原理进行归类分析的,但电力生产实践中,设备故障致热的原因有很多、产生情况又比较复杂,若把设备发热仅仅归为某一类型致热进行分析,往往不能从根本上解释清楚。本文从功率损耗致热的角度,针对生产中的各种发热问题进行归纳分析,可以彻底解释不同类型设备发热的内在原因,从而为生产人员处理设备发热提出参考的理论基础。
The heat generation of electrical equipment will not only affect the electrical characteristics of the device,while also endanger the safety of the equipment insulation.Many electrical accidents in production are caused by heat;therefore,the key to solve such problems is to research in the mechanism of equipment generating heat.At present,in the research of infrared temperature measurement of the electrical equipment,the diagnosis and analysis of the heat problem is classified into current-mode and voltage-mode.But there are various situations that cause heat in the practice of power production,and often they are complicated.If we only classify and analyze them in current-mode or voltage-mode,it is difficult to explain it clearly from the foundation.From the viewpoint of power loss causing heat,this thesis summarized and analyzed all situations that cause heat.After completely explaining the underlying causes of heat generation of different types of equipment,we can provide better theoretical reference for the treatment to equipment heat.
出处
《电气技术》
2013年第1期43-45,共3页
Electrical Engineering
关键词
电导损耗
极化损耗
电离损耗
涡流损耗
磁滞损耗
conductivity loss
polarization loss
ionization loss
eddy current loss
hysteresis loss
