变电站继电保护二次系统接地技术分析  

Analysis of Grounding Technology for Secondary System of Substation Relay Protection

作　　者：咸菁菁 XIAN Jingjing(Ultra-High Voltage Branch of State Grid Jiangsu Electric Power Co.,Ltd.,Jiangsu Nanjing 211102,China)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211102

出　　处：《农村电气化》2023年第10期24-26,84,共4页Rural Electrification

摘　　要：现代变电站项目对站内环境提出严格要求,加之站内为数众多的高电压等级的一次设备同样会对变电站的二次系统产生一定的干扰。分析在变电站项目投运使用期间,二次系统干扰问题的干扰信号种类和干扰源影响机理,以此论证变电站二次系统接地改造的必要性。并从多方面阐述变电站继电保护二次系统接地改造技术方案的内容,提出二次系统接地技术的具体策略。旨在完善二次系统接地技术体系,实现接地技术规范化、标准化应用目标,为二次系统接地改造方案制定提供技术指导。Modern substations have strict requirements for the internal environment of the station.The numerous high voltage level primary equipment in the station can cause certain interference to the secondary system of the substation.Analyze the types of interference signals and the impact mechanisms of interference sources in the secondary system during the operation and use of the substation project,in order to demonstrate the necessity of grounding renovation of the secondary system in the substation.And elaborate on the content of the grounding renovation technology plan for the secondary system of substation relay protection from multiple aspects,and propose specific strategies for the grounding technology of the secondary system.Intended to improve the secondary system grounding technology system and achieve the goal of standardization and application of grounding technology.Provide technical guidance for the development of secondary system grounding renovation plans.

关 键 词：变电站 继电保护 二次系统 接地技术 

分 类 号：TM645.2[电气工程—电力系统及自动化]