摘要
介绍电力变压器绕组变形产生的原因及表现形式,着重分析和总结现有的基于电气量特征的电力变压器绕组变形传统的离线检测技术和在线监测理论的特点及应用,并分析现有方法存在的主要问题和原因。结合变压器绕组变形与漏电感参数的变化关系,指出变压器绕组漏电感参数的准确实时计算将成为绕组变形监测,尤其是从离线到在线监测技术发展的关键问题。
The cause and behaving of transformer winding deformation are introduced. The characteristics and applications of existing off-line and on-line monitoring techniques for winding deformation are emphasized,and their unsolved problems are analyzed and summarized. Depending on the relation between winding deformation and leak inductance,it is pointed that the exact and real-time calculation of leak inductance is the key factor of winding deformation monitoring,especially of the technique development from off-line monitoring to on-line monitoring.
The project is supported by National Natural Science Foundation of China（50277027）.
出处
《电力自动化设备》
EI
CSCD
北大核心
2006年第2期28-32,52,共6页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(50277027)
关键词
变压器绕组变形
短路阻抗
漏电感
在线监测
transformer winding deformation
short impedance
leak inductance
on-line monitoring
