Abstract This work aims is to design, fabricate and test a gas surge arrester with optimum characteristics based on testing the influence of all parameters that affect the characteristics of gas surge arresters for the coordination of low voltage isolation. After extensive research on the surge arrester model and reviewing all available literature, a three-electrode prototype surge arrester was made. The prototype gas used was a mixture of 0.8 He + 0.2 SF6 and the working point was set to the right of Pashen’s minimum. Examination of thus constructed prototype and three commercial surge arresters of the same nominal voltage has shown that the surge arrester model was better in every respect. It should be noted that using the developed model, gas arresters with radioactive charging can be discarded, which is important for environmental reasons. The obtained results are very important in power engineering since the operation and control of the operation of power circuits, which are the source of overvoltage which are performed by electronic circuits.

中文翻译：

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一种用于低压隔离配合的三极气体避雷器

摘要 本工作的目的是在测试影响气体避雷器特性的所有参数对低压隔离协调的影响的基础上，设计、制造和测试具有最佳特性的气体避雷器。在对避雷器模型进行广泛研究并查阅所有可用文献后，制作了一个三电极原型避雷器。使用的原型气体是 0.8 He + 0.2 SF6 的混合物，工作点设置在 Pashen 最小值的右侧。对如此构造的原型和具有相同标称电压的三个商用避雷器的检查表明，该避雷器模型在各方面都更好。应该注意的是，使用开发的模型，可以丢弃带有放射性电荷的气体避雷器，这对于环境原因很重要。