摘要
新时期,“用好电”成为人民追求美好生活新的意愿,传统单一的继电保护或者馈线自动化无法满足“供好电”要求。根据桐乡20kV配电网网架、设备以及故障特性等入手,减少分支线故障对主线影响,提升干线故障快速隔离及恢复。提出了支线或者环网柜出线保护与变电所出线开关保护极差配合,快速切除支线故障,主干线配置“三遥” 4G+量子开关或环网柜站所“三遥” DTU,大用户及大分支线配置“二遥”智能开关,主干线覆盖全自动FA助力配网秒级复电,保障电力系统安全稳定运行和社会经济高质量发展。
Entering into a new era,'utilizing electricity'has become the people's new will to pursue a better life,The traditional single relay protection or feeder automation can not meet the requirements of'power supply'.According to Tongxiang 20kV distribution network frame,equipment and fault characteristics,etc,Reduce the impact of branch line faults on the main line,and improve the rapid isolation and recovery of trunk line faults,put forward the branch line or ring network cabinet outgoing line protection and substation outgoing line switch protection range coordination,quickly remove branch line fault,The main line is configured with'three remote'4G+quantum switch or ring network cabinet station'three remote'DTU.large users and large branch lines are configured with'two remote'intelligent switches.The main line covers the automatic FA to help the distribution network restore power in seconds,ensuring the safe and stable operation of the power system and the high-quality development of the social economy.
作者
廖平军
刘荣峥
LIAO Ping-jun;LIU Rong-zheng(State Grid Zhejiang Electric Power Co.,Ltd.Tongxiang City Power Supply Company,Tongxiang Zhejiang314500,China;State Grid Jiangxi Electric Power Co.,Ltd.Power Supply Service Management Center,Nanchang Jiangxi330000,China)
出处
《机电产品开发与创新》
2025年第1期65-68,共4页
Development & Innovation of Machinery & Electrical Products
关键词
馈线自动化
继电保护
量子开关
智能开关
可靠性
Feeder automation
Relay protection
Quantum encryption switch
Intelligent switch
Reliability
