550kV GIS用盆式绝缘子的绝缘设计研究

Insulation Design of Basin-Type Insulator in 550 kV Gas-Insulated Switchgear

作为气体绝缘金属封闭开关设备(GIS)中核心元件,盆式绝缘子绝缘设计关系到GIS整体的绝缘水平。阐述了盆式绝缘子设计思路,对其结构形式进行了分析,结合电场及制造工艺给出最优形状比,提出了盆式绝缘子设计过程中关键位置电场校验判据,并通过试验验证了所提出校验判据的合理性。

The basin-type insulator as the core component in gas-insulated switchgear （GIS）, its insulation design affects insulation level of entire GIS.This paper expounded the design thought of basin-type insulator and analyzed its structural style. Combining with the electric feld and manufacturing process, this paper gave the optimal shape proportion and proposed the electric feld check criterion of the key location in the design process of basin-type insulator. The test verifed the rationality of proposed check criterion.