27.5 kV GIS开关柜接地优化设计  

27.5 kV GIS Switchgear Grounding Optimization Design

作　　者：杨军勤 YANG Junqin(China Railway Construction Electrification Bureau Group Co.Ltd.,Beijing 100043,China)

机构地区：[1]中国铁建电气化局集团有限公司,北京100043

出　　处：《铁道建筑技术》2025年第3期120-123,共4页Railway Construction Technology

基　　金：中国铁建股份有限公司科技研发计划项目(2021-C44)。

摘　　要：27.5 kV GIS开关柜在高速铁路牵引供电系统中扮演着重要的角色。本文探讨了27.5 kV GIS开关柜接地系统的设计现状,并对其潜在问题进行了细致的分析,针对这些问题,提出了一系列旨在提升GIS开关柜接地系统性能的优化策略,以确保高速列车供电的稳定性。对于一次侧接地系统,提出了功能分区、接地监测、结构优化等措施;对于二次接地系统,则强调了工作接地与保护接地的分离以及接地系统管理的强化。通过这些优化设计方案的实施,增强了接地系统的稳定性,可以有效地预防和减少因接地问题导致的供电事故,为高速铁路的安全运营提供坚实的技术保障。The 27.5 kV GIS switchgear plays an important role in the traction power supply system of high-speed railways.This article explores the current design status of the grounding system for 27.5 kV CIS switchgear and provides a detailed analysis of potential issues.In view of these problems,a series of optimization strategies were proposed to improve the performance of GIS switchgear grounding system to ensure the stability of power supply for high-speed trains.For the primary side grounding system,measures such as functional partitioning,grounding monitoring,and structural optimization were proposed.For the secondary grounding system,the separation of working grounding and protective grounding and the strengthening of grounding system management were emphasized.Through the implementation of these optimized design schemes,the stability of the grounding system is enhanced,which can effectively prevent and reduce power supply accidents caused by grounding problems,and provide a solid technical guarantee for the safe operation of high-speed railways.

关 键 词：27.5 kV GIS开关柜 一次设备接地 二次设备接地 保护接地 工作接地 

分 类 号：U223.6[交通运输工程—道路与铁道工程] TM591[电气工程—电器]