浅议变压器过热型故障部位的判定  

A Brief Discussion on Diagnosis for Overheated Fault in Transformers

作　　者：王佩璋[1] 叶涟远 何志武[3] 

机构地区：[1]广西大学电气工程学院,广西南宁530004 [2]广西电机工程学会,广西南宁530023 [3]广西电力试验研究院,广西南宁530023

出　　处：《中国电力》2000年第1期86-89,共4页Electric Power

摘　　要：从油裂解功率关系式出发，对判定变压器过热型故障发生部位的总烃安伏曲线法、总烃安伏法和总烃产气率法进行了分析比较。分析结果表明，若故障部位在导电回路，总烃产气率将与电压平方成正比；若故障部位发生在磁路上，则总烃产气率与电流平方成正比；而总烃量与油裂解功率之间不存在线性比例关系。总烃产气率法可作为在线测定变压器过热故障部位的一种辅助方法。On the basis of oil splitting power formula,the following principle is expounded and proved in this paper. Whenoverheated fault occurs on a electric circuit,total hydrocarbon producing rate varies directly in proportion with V';whilethe overheated fault occurs on the magnetic circuit, the producing rate varies in proportion with I2;. and there isnt a linearrelationship betWeen total hydrocarbon and oil splitting power. This principle can be used as a supplements method tolocate overheat spot in a transformer.

关 键 词：变压器 过热故障 故障部位 

分 类 号：TM411[电气工程—电器]