In this paper, carefully designed experiments are reported, which indicate that the change in frequency of voltage polarity reversals results in a change in slope of v-t characteristics on the inverse power law. The power law parameters are shown to be systematic functions of frequency of polarity reversals. Based on these results, the authors propose a comprehensive inverse power law for DC polarity reversal stress application, in place of conventional inverse power law. The proposed modification is examined with experimental data of authors apart from that available in literature and found to be working well. The model provides the maximum frequency of a reversal for maximizing the life of power equipment which may pave the way for deciding on the maximum frequency of voltage reversals.

中文翻译：

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基于逆幂律的直流极性反转应力包容寿命模型


本文报告了精心设计的实验，表明电压极性反转频率的变化会导致反幂律上 vt 特性斜率的变化。幂律参数被证明是极性反转频率的系统函数。基于这些结果，作者提出了一种用于直流极性反转应力应用的综合逆幂律，以代替传统的逆幂律。除了文献中可用的数据之外，还使用作者的实验数据对所提出的修改进行了检查，发现效果良好。该模型提供了最大反转频率，以最大限度地延长电力设备的使用寿命，这可能为决定电压反转的最大频率铺平道路。