摘要
500kV超高压电力系统为保障供电可靠性,大部分采用3/2接线方式,突出问题是断路器保护与自动重合闸装置的配合。根据3/2接线方式较为灵活的特点,利用3/2接线断路器保护自身原理及重合闸装置重合原则,找出其共同点,并结合500kV变电站的运行和工作实际,分析论证线路重合闸有关问题,给出了3/2接线断路器重合闸的保护配合方法,对优化运行操作、提高系统运行稳定性和可靠性提供帮助。
500kV EHV power system uses mostly 3 / 2 connection mode for the protection of power supply reliability.The prominent problem is that the match of circuit breaker protection and automatic re-closing device. Based on the flexiblefeatures of 3/2 connection mode and the use of its own principles of circuit breaker and the principle of re-closing devices overlap, it identifies their common features. Combined with 500kV substation operation and actual work, it analyses and demonstrates line reclosing problem, and gives the protection matching way of 3/2 wiring circuit breaker reclosing protection. It is helpful to optimize operation and enhance the system stability and reliability.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第23期141-144,共4页
Power System Protection and Control
