变压器绕组变形在线监测的研究  

Research on on-line winding deformation monitoring of power transformer

作　　者：徐大可[1] 张言苍[1] 李彦明[2] 

机构地区：[1]国电南京自动化股份有限公司,江苏南京210003 [2]西安交通大学,陕西西安710049

出　　处：《电力自动化设备》2002年第8期8-11,共4页Electric Power Automation Equipment

基　　金：国家自然科学基金重点项目 (5 96 372 0 0 )~~

摘　　要：阐述了用测量变压器短路电抗就可判断变压器绕组是否变形的观点 ,基于变压器绕组变形在线监测的理论研究 ,探讨了在线测量变压器短路电抗的方法 ,研制了变压器短路电抗在线测量系统 ,并在某变电站投入运行 ,研究结果表明在线测量方法具有较高的准确度和良好的稳定性 ,变压器运行条件及外部因素的变化对于其短路电抗的测量影响很小 ,所研制的系统能为运行中变压器绕组的变形情况提供实时而准确的指示。The feasibility of estimating winding deformation of power transformer by measuring short circuit reactance is expounded in both theory and practice,and its on line measuring method is proposed.Based on the theoretical research,the on line measuring system of short circuit reactance of transformer is developed.Its operation study on a power transformer in real condition shows that the on line measuring method has better correctness and stability.The change of transformer operating conditions and external factors will not exert an effective influence on reactance measurement and it can be taken as a real time winding deformation indication of power transformer.

关 键 词：波浸式电力变压器 短路电抗 绕组变形 在线监测 

分 类 号：TM411[电气工程—电器]