35kV噪声异常变压器振动的检测分析.pdfVIP

35kV 噪声异常变压器振动检测分析 1 2 1 1 1 王楠 ，藏春艳 ，王伟 ，唐庆华 ，刘宝成 （1.国网天津市电力公司电力科学研究院 天津市 西青区 300384；2.华中科技大学 武汉市 洪山区 430074） Analysis of Vibration Detection in 35kV Noise Abnormal Transformer 1 2 1 1 1 WANG Nan , ZHANG Chunyan , WANG Wei , TANG Qinghua , LIU Baocheng (1.Electric Power Research Institute of Tianjin Electric Power Corporation, Xiqing District, Tianjin 300384, China;2. Huazhong University of Science and Technology, Hongshan District, Wuhan300384, China) ABSTRACT: Vibration and noise detection method is 的风险。常规的解决手段是通过定期停电进行 an important method for diagnosis of transformer core 空载试验和绕组变形试验发现设备缺陷。但 charged loosening and winding deformation. According to the two 35kV noise abnormal transformer ，the analysis 是，随着状态检修工作的推进，设备停电试验 of vibration and noise detection is carried out. In this 周期由设备运行状态决定，因此，如何在带电 paper, first, the basic situation and parameters of the 状态下对变压器铁芯和绕组状态进行判断，是 abnormal noise transformer is introduced, based on the structural characteristics of transformer and on-site 现场技术人员亟需解决的问题，也是确保变压 inspection, the causes of abnormal noise were 器安全稳定运行的关键。 preliminary inference. Then, noise anomaly transformer was carried out field testing analysis ，using of vibration 目前较为有效的带电检测方法是振动检 detection and noise detection method, by comparing with 测法和噪声检测法。振动检测法[1-2]始于20世 the normal transformer, and vibration detection method 纪80年代，通过检测传递到箱壁的振动信号对 of measuring points arrangement,