冷热循环老化对变频调速电机电磁线绝缘电性能影响的研究  

Effect of Thermal-cooling Cycle Aging on the Electrical Properties of Electromagnetic Wire Insulation for Inverter-Fed Traction Motor

作　　者：于钦学[1] 任文娥[1] 钟力生[1] 徐阳[1] 

机构地区：[1]西安交通大学电气绝缘研究中心,西安710049

出　　处：《绝缘材料》2014年第2期67-70,共4页Insulating Materials

摘　　要：为研究冷热循环老化对变频调速电机电磁线绝缘电性能的影响,通过对电磁线进行冷热循环试验,测试分析了冷热循环次数对电磁线绝缘电性能的影响规律。结果表明:电磁线试样的介质损耗因数(tanδ)、电阻(R)、电容(C)随冷热循环次数的增加而有所减小,击穿电压随循环次数的增加而变化不明显。tanδ随着电压的增大而减小,可能是由于该绝缘材料具有非线性效应。To study the effect of thermal-cooling cycle aging on the electrical properties ofelectromagnetic wire insulation for inverter-fed traction motor, the effect of thermal-cooling cycle timeson the electrical properties of the electromagnetic wire insulation was analyzed by thermal-cooling cycleexperiment. The results show that the dielectric dissipation factor（tanδ）, resistance（R） and capacitance（C）decrease with the increase of cycle times, and the breakdown voltage changes little with the increase ofcycle times. The tanδ decreases with the increase of voltage, this may be because the insulating materialshave nonlinear effect.

关 键 词：变频调速电机 电磁线绝缘 冷热循环老化 

分 类 号：TM201.44[一般工业技术—材料科学与工程] TM245[电气工程—电工理论与新技术]