高压电机定子绕组绝缘薄弱点定位方法的研究  

Research on Positioning Method of High-Voltage Motor Stator Winding Insulation Vulnerabilities

作　　者：吴磊 莫岳平 龚维明[2] 

机构地区：[1]扬州大学水利与能源动力工程学院,江苏扬州225127 [2]江苏省江都水利工程管理处,江苏扬州225200

出　　处：《电工电气》2016年第1期44-48,共5页Electrotechnics Electric

基　　金：扬州大学大学生科技创新基金项目(x2015546)

摘　　要：针对现有局部放电检测法不能解决高压电机定子绕组绝缘薄弱点的定位问题,研究了绝缘薄弱点在局放下产生电场信号的特点,设计了手持式局放定位探测器。通过与局放仪配合使用,有效解决了高压电机定子绕组绝缘薄弱点定位问题。试验结果表明:该装置能准确定位电机定子端部的绝缘薄弱点位置,从而避免电机绝缘故障的进一步扩大。In allusion to the problem that the existing partial discharge detection method cannot locate the motor stator winding insulation vulnerabilities, this paper researched the winding insulation vulnerabilities which produced an electric field under the partial discharge signals and designed a handheld partial discharge positioning detector. Cooperated with the partial discharge detector, the positioning problem of high-voltage motor stator winding insulation vulnerabilities could be solved effectively. The experimental results show that the detector can accurately locate the insulation vulnerabilities position at motor stator ends, so as to reduce the risk of motor problems due to the insula- tion fault.

关 键 词：高压电机 局部放电 绝缘薄弱点定位 定位探测器 

分 类 号：TM303.3[电气工程—电机]