特高压变电站选相分合闸装置运维技术研究  

Research on Operation and Maintenance Technology of Phase Selection Switching Device in Ultra-high Voltage Substation

作　　者：杨能 尹国慧 苗长青 解江涛 王磊 YANG Neng;YIN Guohui;MIAO Changqing;XIE Jiangtao;WANG Lei(State Grid Shandong Electric Power Maintenance Company,Jinan 250118,China)

机构地区：[1]国网山东省电力公司检修公司,山东济南250118

出　　处：《山东电力技术》2020年第8期45-48,共4页Shandong Electric Power

摘　　要：特高压变电站采用选相分合闸装置分合断路器,可有效抑制无功补偿设备投切产生的合闸涌流、操作过电压,延长开关设备的服役时间。从控制原理和控制过程两个方面详细介绍选相分合闸装置的控制策略,针对选相分合闸装置在应用、维护过程出现控制电压波动、功能开关切换错误、反馈回路误接线等典型问题进行原因分析并给出处理建议,为特高压变电站的精益运检提供参考。Phase selection switching device is used to control the circuit breaker in ultra-high voltage substation,which can effectively suppress the switching inrush current and operating overvoltage generated by the reactive power compensation device,and extend the service time of switch equipment.The control strategy of the phase selection switching device in detail from the aspects of control principle and control process is introduced.In view of the typical problems in the application and maintenance of the phase selection switching device,such as control voltage fluctuation,switching error of the function switch and feedback loop miswiring,the reasons are analyzed and some suggestions are given,which have certain reference significance for lean operation and inspection of UHV substations.

关 键 词：交流特高压 选相分合闸 无功补偿设备 断路器 

分 类 号：TM761[电气工程—电力系统及自动化]