众所周知,为了把发电厂发出来的电能输送到较远的地方,必须把电压升高,变为高压电,而在用户附近则需要把电压降低,这些升降电压的工作由变电站来完成。变电站是输电和配电的集结点,它对于电网,好比人的心脏对于人体,其在电力系统的重要性不言而喻。当前变电站建设的两大特征伴随着我国经济社会的快速发展和科学技术的迅猛提高,当前变电站建设主要显现两大特征。一是变电站建设的数量不断增加。经济社会的 As we all know, in order to power the electricity sent from the power plant to a distant place, the voltage must be increased to become high voltage, while in the vicinity of the user need to reduce the voltage, the work of these voltage drop by the substation to complete. Substation is the gathering point of transmission and distribution, it is self-evident to the power grid, like human heart to human body, its importance in power system. The two major characteristics of the current substation construction along with the rapid economic and social development of our country and the rapid increase of science and technology, the current substation construction mainly shows two characteristics. First, the number of substation construction continues to increase. Economic and social