变电站二次系统等电位接地网敷设方式研究综述

Review of Laying Methods for Equipotential Ground Screen in Secondary System of Substation

近年来,随着智能化变电站的兴建,大量使用了基于数字电路原理工作的设备,这对二次系统抗干扰的能力提出了更高的要求,合理的二次系统等电位接地方式显得尤为重要。首先,对二次系统等电位接地网的敷设方式研究现状进行了归纳总结,涵盖了等电位接地网总体敷设原则、室内外接地铜排敷设常见问题、等电位接地网和主接地网连接方式3个部分核心内容。最后分析了目前研究存在的问题和未来的研究方向。

In recent years, with the construction of smart substations, the equipment based on digital circuits is extensively used, which proposes higher requirements for the anti - interference ability of secondary system. A reasonable cquipotential grounding mode of secondary system is particularly important, he research status of laying methods for equipotential ground screen of secondary system is summarized, covering the overall laying principle of cquipotential ground screen, the common problems of laying indoor and outdoor equipotential ground screen, and the connection between equipotential ground screen and main grounding grid. Finally, the existing problems and future research directions are analyzed.