摘要
随着电力系统的发展,电网容量逐渐增大,电力系统的短路水平逐年提高,许多变电站的电气设备已不能满足安全运行的要求,因此需要对变电站进行改造。500 k V变电站大多为电网的枢纽变电站,停电改造影响大,成本高。本文从500 k V江门变电站的不停电改造入手,分析总结了江门站改造的特点、不停电改造技术的关键点并针对改造的难点提出了解决方案,为变电站实现不停电安全改造奠定了基础。
With the development of electric power,capacitance of power grid grows faster,short-circuit current increase year by year,many equipments of substation are unable to meet the requirements of safety operation so that these substations require retrofit.Power-off retrofit for center substation will have great influence on the power grid and cost a lot;On the basis of analyzing the characteristic and the key point of live retrofit in 500 kV Jiangmen substation,an approach to solve the difficulties of live retrofit is proposed in this paper to lay the foundation for the safety of substation live retrofit.
出处
《南方能源建设》
2015年第B12期244-248,共5页
Southern Energy Construction
