【摘要】 开展变压器绕组及铁心监测及诊断方法的研究,及早发现变压器绕组松动,避免突发事故具有十分重要的意义。利用机械振动频响法,通过对变压器的箱壁振动信号的测试和分析,对上海武威变电站220 kV变压器的绕组松动进行了测试分析,提出了诊断变压器绕组松动的新方法。更多还原

【Abstract】 It’s important to investigate the methods about inspecting and diagnosing windings and cores of electrical transformers,in order to avoid the accident and improve the security of transformers by finding the deformation of windings as soon as possible.This paper uses Frequency Response Analysis,by testing and analyzing the vibrating signals via the body,to analyze the loose winding of 220 kVtransformer in Wuwei Substation.New method is proposed for diagnosing whether the winding is loose or not.更多还原