基于一二次融合开关的小电流接地故障保护应用  

Application of Small Current Grounding Fault Protection Based on Primary and Secondary Fusion Switch

作　　者：闫强强 YAN Qiangqiang(Xuzhou Power Supply Company,Xuzhou 221000)

机构地区：[1]国网江苏省电力有限公司徐州供电分公司,江苏徐州221000

出　　处：《电力安全技术》2025年第1期30-34,共5页Electric Safety Technology

摘　　要：详细介绍一二次融合开关常用的小电流接地故障检测原理和相关技术要求,以及小电流接地保护的配置方案和验收方法,并以江苏某公司为例,说明一二次融合开关的现场应用成效,指出当前终端存在的问题并提出相关建议。The small current grounding fault detection principles and related technical requirements commonly used in primary and secondary fusion switches,as well as the small current grounding protection arrangement scheme and acceptance method,are specified in detail.Taking a company in Jiangsu Province as an example,the effectiveness of field application of primary and secondary fusion switches is illustrated,and the current terminal issues are pointed out with the corresponding suggestions proposed.

关 键 词：小电流接地故障 一二次融合开关 故障录波回放法 小电流接地保护 

分 类 号：TM862[电气工程—高电压与绝缘技术]