10kV线路断相事件分析与模拟实验  

Analysis and Simulation of Open⁃phase on 10kV Overhead Transmission Line

作　　者：钱厚军 黄贵鑫 易非凡 李杨 王东博 陈啟豪 马帅印 Qian Houjun;Huang Guixin;Yi Feifan;Li Yang;Wang Dongbo;Chen Qihao;Ma Shuaiyin(CNNC Nuclear Power Operation Management Co.,Ltd,Haiyan 314300,China)

机构地区：[1]中核核电运行管理有限公司,海盐314300

出　　处：《智能建筑电气技术》2024年第5期14-18,共5页Electrical Technology of Intelligent Buildings

摘　　要：本文对某核电厂一起10kV输电线路跌落保险熔断引发的断相事件,分析跌落保险熔断的原因,通过相量分析法分析变压器两侧电压相量关系以及低压母线多功能表测量不准的原因,采用模拟实验进行故障复现以验证理论分析结论,加深专业技术人员对变压器的异常运行工况的理解,提高分析和判断故障的能力。相量分析和模拟实验方法可供同行参考。A open phase event of 10kV transmission line occurred in a nuclear power plant caused by blown of drop-down fuse.In this paper,the reason of the blown fuse is analyzed,and the phasor on both sides of transformer is showed,the reason of incorrect display of multifunction meter is also analyzed.And simulation experiment is used to repeat the fault to verify the conclusion of theoretical analysis.Through theoretical analysis and experimental verification,professionals deepen the understanding of transformer abnormal operation,improve the ability to analyze and judge faults.The method of phasor analysis and simulation experiment can be used for peer reference.

关 键 词：跌落保险 单相断线 相量分析 多功能表 模拟实验 

分 类 号：TM726[电气工程—电力系统及自动化]