葛洲坝至双河500 kV线路增容改造变电设计施工方案研究

Study on substation design and construction scheme of capacity expansion project of 500kV Gezhouba to Shuanghe transmission line

针对湖北省葛洲坝水电厂至双河变电站双回500kV线路增容改造工程中的保电需求,提出了一种分阶段、分步骤、少停电的施工过渡方案。结合土建构架加固与电气导线更换的施工项目要求,制定了变电站内500 kV区域施工工序。结果表明:该方案可有效缩减施工工期及施工期间停电时间,对变电改造工程具有参考意义。

According to the power supply demand in 500 kV transmission line capacity expansion project from Ge⁃zhouba Hydropower Station to Shuanghe Substation in Hubei Province,this paper proposes a staged construction transition scheme and each stage contains several detail procedures to shorten the power cut duration.By consider⁃ing the requirements of gantry reinforcement of civil engineering and conductor renewal of electrical engineering,the construction procedures of 500 kV substation is worked out.This design and construction scheme can reduce the duration of construction and power cut and provide a reference to the future substation expansion projects.