摘要
研究了通过在线测量变压器短路电抗来监测电力变压器绕组变形状况的方法，并在模型变压器上进行了模拟实验。其结果以及与离线测量结果的比较表明，在线测量方法具有较高的准确度和良好的稳定性，变压器运行条件的变化以及外部因素的变化对于阻抗的测量影响很小，能够为实际运行中的变压器绕组状况提供实时准确的指示。
A novel strategy for monitoring the state of power transformer windings by on-line measurement of short-circuit reactance is studied on a model transformer in lab condition.The results and their comparisons with those obtained in out-of-service condition show that the on-line method is satisfactory for detecting short-circuit reactance variations with high degree of accuracy and good stability, and can be used for detecting deformation in the transformer windings. The changes of the operation condition of transformer and the external factors will not exert an effective influence to the results.
出处
《电机与控制学报》
EI
CSCD
1998年第2期84-87,共4页
Electric Machines and Control
基金
国家自然科学基金
关键词
变压器
绕组变压
在线测量
短路电抗法
transformer
winding deformation
short-circuit reactance
on-line measurement
