2006年国家电网公司继电保护装置运行情况

Operation Situation of Protective Relayings of State Grid Corporation of China in 2006

介绍了2006年国家电网公司继电保护装置的运行情况,包括220kV及以上系统一次设备的运行及故障情况,220kV及以上线路保护、变压器保护、母线保护和故障录波器、100MW及以上发电机保护等的运行情况。统计结果表明,除母线保护外,2006年各类继电保护装置的正确动作率均有上升,为近5年来的最高水平。文章还分析了造成保护不正确动作的原因,指出制造质量不良占主要责任,其次是运行维护管理的责任、基建部门的责任及其他方面的责任。

The operation situation of protective relayings of the State Grid Corporation in the year of 2006 is presented. The statistics and analysis of operation situation of primary equipments in 220kV and above power systems, including main protections of transmission lines, transformer protections, busbar protections, fault recorder and generator protections for 100MW and above generation units as well as the statistics of faults occurred in them are given. Statistic results show that except busbar protections the correct action rates of various protective relayings are improved and reach the highest level in recent five years. The reasons leading to incorrect actions of protective relayings are analyzed, and it is pointed out that the main responsibility for incorrect actions of protective relayings lies in defective manufacturing quality, and the secondary responsibility lies in the departments of operation and maintenance, capital construction and others.