电测与仪表Issue(14)：47-51,109,6.
基于短路电抗法的配电变压器绕组变形在线诊断
On-line Diagnosis of the Distribution Transformer Winding Deformation Based on the Short-Circuit Reactance Method
摘要
Abstract
In view of the fact that distribution transformer winding will be deformed on the impact of the short-circuit current, this paper proposed a novel on-line diagnosis method of winding deformation for distribution transformers.Transformer winding deformation leads to changes in the transformer short-circuit reactance,so we can diagnose the extent of deformation of the distribution transformers by measuring the amount of the change of the short-circuit reactance. First of all, the relationship between the short-circuit reactance of the distribution transformerand the voltage of the primary and secondary side and the current was developed based on the analysis of the equivalent circuit model of the transformer. And then the short-circuit reactance was computed and the on-line diagnosis of the distribution transformer winding deformation was made by collecting the voltage and current signals of the distribution transformer.The test results verified the effectiveness and accuracy of the proposed method .关键词
配电变压器/在线诊断/绕组变形/短路电抗Key words
distribution transformer/on-line diagnosis/winding deformation/short-circuit reactance分类
信息技术与安全科学引用本文复制引用
何为,刘以刚,胡国辉,杨帆,陈曦..基于短路电抗法的配电变压器绕组变形在线诊断[J].电测与仪表,2014,(14):47-51,109,6.基金项目
国家质量监督检验检疫总局公益性科研专项项目(201010059)；重庆市电器检测工程技术研究中心(CSTC2011pt-gc70009) （201010059）
