Big City Load Concentration Area Substation Uninterruptible Technologicl Transformation Study

In the existing structure of power grid, substation is neural node and the center of the whole power system, the power grid security, substation safe operation plays an important role, is the priority among priorities security operation of the whole power system.In the past thirty years, the construction of power grid in China has experienced a rapid development, the construction of a large numbers of substation, the substation with the equipment using the time of growth, gradually exposed, such as reduced insulation aging equipment, technology is backward elimination, more and more operation problems, reform is urgently needed. Big city load concentrated areas of substation equipment aging is obvious, but this kind of substation outage difficulty is great, need to adopt special methods have achieved the purpose of transformation.This article from the actual demand from the substation, studied a concentrated area substation can move temporary power supply system based on the load, can realize the central load concentrated areas of uninterrupted improvement. The scheme solves the contradiction of power supply reliability and substation equipment urgent transformation between requirements, greatly enhancing the transformation efficiency, reduces the power risk during the renovation, has achieved good results in practical application.