500kV变电站控保改造过程中异常状况分析  

Analysis of Abnormal Conditions in the Control and Protection Renovation Process of 500kV Substation

作　　者：李星 史蜀军 阳祎 LI Xing;SHI Shujun;YANG Yi(Guangzhou Branch of China Southern Power Grid Ultra High Voltage Transmission Company,Guangdong 510405,China)

机构地区：[1]中国南方电网超高压输电公司广州局,广东510405

出　　处：《电子技术(上海)》2024年第12期172-173,共2页Electronic Technology

摘　　要：阐述针对某500kV变电站内控保改造过程中主变非电气量保护压板电位异常、开关合闸监视回路异常等故障,通过电位测量、排查回路、对时试验等方法,定位各异常情况,并提出整改和预防措施。This paper expounds the faults such as abnormal potential of non electrical quantity protection pressure plates and abnormal switch closing monitoring circuits in the internal control and protection renovation process of a 500kV substation.Through methods such as potential measurement,circuit troubleshooting,and timing testing,it locates each abnormal situation and proposes corrective and preventive measures.

关 键 词：分相跳闸 TWJ继电器 合闸监视回路 脉冲对时 

分 类 号：TM63[电气工程—电力系统及自动化]