Partial discharge (PD) is one of key factors which lead to premature failure of inverter-fed motors. It is proved that characteristic parameters of PD can be used to evaluate life of insulation material effectively under alternating current (AC). In this paper, some parameters of PD are statistically based on measurement results. Influence of impulse frequency on inception voltage of PD (PDIV), mean of charge (qmean), max of charge (qmax), number of PD (n) and energy of PD (PDEV), are discussed. It is a benefit on studying relation between PD and ageing.
展开▼
机译：局部放电（PD）是导致逆变器供电的电动机过早失效的关键因素之一。实践证明，PD的特征参数可以有效地评估绝缘材料在交流电（AC）下的寿命。本文中，PD的一些参数是根据测量结果进行统计的。脉冲频率对PD起始电压（PDIV），平均电荷（q mean ），最大电荷（q max ），PD数（n）和讨论了PD的能量（PDEV）。研究PD与衰老之间的关系是有益的。
展开▼
