上海交通大学学报

上海交通大学学报（自然版）

• 自动化技术、计算机技术 • 上一篇    下一篇

振动频响分析法在大型变压器绕组变形检测中的应用

邵宇鹰1，徐剑2，饶柱石1，金之俭2，姜益民3，周凯4
  

  1. (1. 上海交通大学 机械系统与振动国家重点实验室， 上海 200240；2. 上海交通大学 电气工程系， 上海 200240； 3. 华东电网有限公司， 上海 200002; 4. 上海市电力变压器修试厂有限公司， 上海 200435)
  • 收稿日期:2010-01-13 修回日期:1900-01-01 出版日期:2010-09-28 发布日期:2010-09-28

Application Research of Detecting Transformer Windings’ Deformation Based on Vibration Frequency Response Analysis

SHAO Yuying1,XU Jian2,RAO Zhushi1,JIN Zhijian2,JIANG Yimin3,ZHOU Kai4
  

  1. (1. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai 200240, China; 2. Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China； 3. East China Grid Company Limited, Shanghai 200002, China;4．Shanghai Power Transformer Repairing and Testing Factory Co. Ltd, Shanghai 200435, China)
  • Received:2010-01-13 Revised:1900-01-01 Online:2010-09-28 Published:2010-09-28

摘要： 对一台220 kV变压器A相绕组前后相隔3天的扫频数据进行比较，并对C相绕组人为制造垫块脱落和绕组径向变形故障，以对比其故障前后的扫频结果.结果表明，振动频响分析法能够有效检测绕组变形故障，其重复性较好，且灵敏度比短路阻抗法更高.

关键词: 变压器, 绕组变形, 振动频响分析法, 短路阻抗, 测量

Abstract: Vibration frequency response analysis (VFRA) was used to test the same winding under the same state at different times. The winding of phase C was artificially made faults of pressboard missing and winding radial deformation. The experimental data show that the VFRA can effectively detect the faults of windings’ deformation and the results are repetitive. Compared with shortcircuit reactance measurement, the VFRA is more sensitive.

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