Simulation of 33kV String Insulators Using Finite Element Method (FEM)

M. Othman, M. Isa, M. N. Mazlee, M. Piah, N. Rahman
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Abstract

Ceramic insulators consists of glass and porcelain are the traditional insulator that have been used until today in electrical power transmission line. These insulators are the most significant part as electrical insulation that prevents electrical current flow directly to the ground through the transmission tower or pole. However, there are a few stresses that interrupt the systems. Thus, knowledge of about voltage and electric-field in insulators are needed to maintain transmission or distribution grid performance and to ensure the consistency of optimal output power levels delivered to the consumers. An attempt has been made to simulate the voltage and electric field distribution of 33 kV porcelain insulators using finite element method (FEM). Based on simulation results, it is found that the bottom part (pin) of the insulator is the most sensitive area of electric stress. Meanwhile, the electric field and voltage distribution is decreased when moving towards cross arm.
33kV串形绝缘子有限元模拟
陶瓷绝缘子是由玻璃和瓷器组成的传统绝缘子,一直沿用至今。这些绝缘体是最重要的部分,作为电气绝缘,防止电流通过输电塔或杆子直接流向地面。然而,有一些压力会中断系统。因此,需要了解绝缘子中的电压和电场,以维持输配电电网的性能,并确保向用户提供最佳输出功率水平的一致性。本文尝试用有限元法模拟了33 kV瓷绝缘子的电压和电场分布。仿真结果表明,绝缘子的底部(引脚)是电应力最敏感的区域。同时,向横臂方向运动时,电场和电压分布减小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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