Temperature and Electric Field under Pulse Voltage along the Stress Grading System of a Form-Wound Coil

被引：0

作者：

Naeini, Alireza ^{[1
]}

Cherney, Edward A. ^{[1
]}

Jayaram, Shesha H. ^{[1
]}

机构：

[1] Univ Waterloo, Dept Elect & Comp Engn, High Voltage Engn Lab, Waterloo, ON, Canada

来源：

2019 IEEE ELECTRICAL INSULATION CONFERENCE (EIC) | 2019年

基金：

加拿大自然科学与工程研究理事会;

关键词：

stress grading tape; conductive nonlinearity; potential distribution; temperature profile; INSULATION;

D O I：

10.1109/eic43217.2019.9046622

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：

Simulation studies under pulse voltage using a 2D axisymmetric model in COMSOL (R) 5.3a on the temperature and electric field along the stress grading system (SGS) of a form wound coil are reported in this work. The validity of the 2D model is shown by comparing the results with the measured temperature profile along the SGS. The effect of the nonlinearity of stress grading tape (SGT) conductivity is evaluated on both temperature and electric field. The results show that increasing the level of the nonlinearity of the SGT conductivity reduces the maximum electric field. On the other hand, the temperature rise is decreased by reducing the level of the nonlinearity of the SGT conductivity. As such, the effect of nonlinearity changes are not mutually compatible in controlling both the electric field and temperature profiles.

引用

页码：209 / 212

页数：4

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