The Fault Detection of Transformer WindingsDeformation Based on Vibration Frequency Response Analysis
Windingsdeformation is one of the most common transformer faults.The paper proposes a new method of Vibration frequency response analysis (VFRA) in order to effectively detect the deformation.A series of experiments have been conducted on a large power transformer to validate its efficiency by testifying its repetitiveness and sensitivity.The first series of experiments used VFRA on phase A under the same status in different time.VFRA was used in the second series of experiments on phase C with purposely removing its insulation pressboard.The third used VFRA to test phase C with manmade radial deformation.All the first series of experimental results are nearly the same,which shows the good repetitiveness for this method.The second and third results with the artificial faults were compared with those in normal status,which shows that VFRA can effectively detect the windingsdeformation.Compared with short-circuit reactance measurement,VFRA is more sensitive.
transformer windingsdeformation vibration frequency response analysis short-circuit reactance measurement
Yuying Shao Hong Guan Zhijian Jin Zhushi Rao
Institute of Technology and management Shanghai municipal electric power company Shanghai, China Shanghai electric power research institute Shanghai municipal electric power company Shanghai, China Department of Electrical Engineering Shanghai Jiao Tong University Shanghai, China State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Shanghai, Chin
国际会议
成都
英文
712-717
2012-06-15（万方平台首次上网日期，不代表论文的发表时间）