Impact of Charge Accumulation on Insulation Films Subjected to Unipolar and Bipolar Square Waves

被引：6
作者：
Moonesan, Mohammad Saleh [1 ]
Jayaram, Shesha H. [1 ]
Cherney, Edward A. [1 ]
机构：
[1] Univ Waterloo, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2017年 / 24卷 / 04期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Rotating machine insulation; form-wound; enameled turn insulation; unipolar square waves; bipolar square waves; aging; lifetime; surface charge accumulation; surface resistivity; mica paper insulation; FORMS; TIME;
D O I：
10.1109/TDEI.2017.006428
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper presents the results of surface charge measurements on insulation film samples with different surface resistivities. Polytetrafluoroethylene (PTFE) and Nylon 6 (PA6) as well as mica paper subjected to unipolar and bipolar square waves at different switching frequencies. The experimental data are presented to explain the differences observed in the times-to-failure of turn insulation when aged using unipolar and bipolar square waves. Time-to-failure experiments and COMSOL r simulations are used to estimate the accumulated charge on the surface of insulation films with different surface resistivities.
引用
收藏
页码：2626 / 2632
页数：7
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