THE IMPACT OF LIGHTNING STRIKE ON HYBRID HIGH VOLTAGE OVERHEAD TRANSMISSION LINE – INSULATED GAS LINE

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska Pub Date : 2024-03-31 DOI:10.35784/iapgos.5445

S. Boumous, Z. Boumous, Y. Djeghader

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Abstract

The electrical network is the set of elements where loads are connected to the generation plants by transmission lines. They can be either overhead or underground cables. A new technology has been introduced to replace these transmission lines with underground cables gas insulated line “GIL”. The latest has many advantages over underground cables and overhead transmission lines, such as low transmission losses, less capacitive load, reliability, personal safety, same operation as overhead lines and negligible electrical aging. GIL can handle much more power than overhead lines due to its large conductive area. GIL is the best for high voltage. In this paper, the simulation of lightning strike effects on a 400 kV hybrid transmission line located in the Wilaya of Setif in northern Algeria is presented in the absence and presence of line arresters and GIL arresters. The results of this paper can provide a rich and valuable theoretical reference for GIL simulation modeling and evaluation of lightning strike impact on hybrid overhead – GIL lines.

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雷击对混合高压架空输电线路--绝缘气体线路的影响

电网是通过输电线路将负载与发电厂连接起来的一组元件。它们可以是架空电缆，也可以是地下电缆。一种新技术已经问世，即用地下电缆气体绝缘线 "GIL "取代这些输电线路。与地下电缆和架空输电线路相比，最新技术具有许多优点，如传输损耗低、电容负荷小、可靠性高、人身安全、与架空线路操作相同以及电气老化可忽略不计。由于导电面积大，GIL 比架空线路能承受更大的功率。GIL 最适用于高电压。本文模拟了位于阿尔及利亚北部塞提夫省的一条 400 千伏混合输电线路在没有和有线路避雷器和 GIL 避雷器的情况下遭受雷击的影响。本文的结果可为 GIL 仿真建模和评估雷击对架空-GIL 混合线路的影响提供丰富而有价值的理论参考。

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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Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

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