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

页码：2626 / 2632

页数：7

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