采用一种高压脉冲绝缘老化试验系统,模拟变频器对变频调速牵引电机定子绕组绝缘材料--聚酰亚胺薄膜进行脉冲电压幅值-温度、频率-温度和频率-电压联合老化试验,利用一元二参数Weibull分布统计分析了3种老化条件下的绝缘寿命试验数据,提出了脉冲下绝缘材料的电热联合老化寿命模型.
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