Recently, the defects in Gas-Insulated Busduct (GIB) affect the electric field distribution badly over the spacer length and de-energies the GIB leading to huge loss economically. In this paper, a post type spacer with Functionally Graded Material (FGM) has been designed for a three-phase GIB under protrusion and further electric field stress is minimized by inserting metal inserts. Functionally graded materials are spatially distributed with several filler materials by doping them with different permittivity values to achieve uniform electric field stress. Simulation is carried out with the designed spacer for different voltages and also for different types of FGM gradings. The protrusion effect on the electric field stress is studied with different sizes and the results obtained are presented and analyzed.

中文翻译：

---

突出作用下带FGM隔板的三相气体绝缘母线槽静电场效应研究

最近，气体绝缘母线槽 (GIB) 中的缺陷严重影响了隔板长度上的电场分布，并使 GIB 断电，从而导致巨大的经济损失。在本文中，针对突出下的三相 GIB 设计了具有功能梯度材料 (FGM) 的柱式隔板，并通过插入金属插件将进一步的电场应力降至最低。功能梯度材料在空间上分布有几种填充材料，方法是将它们掺杂不同的介电常数值，以实现均匀的电场应力。使用针对不同电压以及不同类型的 FGM 分级设计的隔板进行模拟。研究了不同尺寸的突起对电场应力的影响，并对所得结果进行了呈现和分析。