35KV变电站设计(论文).doc

. . . . . . . . . . 广平矿区35kV电房设计 摘要 随着国民经济的快速发展和现代工业建设的不断推进，对电力系统的要求也在不断提高，因此对于电力系统的重要组成部分电房的设计也要不断推出新，因为只有这样才能满足不断增长的用电负荷要求，以及适应复杂多变的用电环境。对于企业而言，进行技术革新，提高产品的利用率，降低产品的能耗，就显得更加尤为重要。 本次毕业设计是广平矿区35kV电房设计，主要是针对桥煤矿的用电需求，该地区供电电压低，用电管理比较混乱，严重影响了矿井生产建设，因此建设这项工程是根据矿区生产和建设的需要，对地方经济的协调发展具有非常重要的意义。 本次毕业设计是从工程的角度出发，依照工厂供电系统设计的原则和方法，同时遵循国家的最新标准和设计规，在分析任务书上规定的负荷资料同时，并结合实际生产的具体情况，综合考虑各个方面的要素，从而确定电气主接线的设计以及主变压器的容量，台数、接线方式以及中性点运行方式。然后在此基础上对系统进行短路点设置，从而进行短路电流计算，并根据其计算结果对断路器、互感器、熔断器等高压电器以及母线、架空线路进行选型和校验。此外还要对整个系统进行接地装置和防雷规划，从而完成电气一次部分设计。 关键词：电房设计，电气主接线，短路电流计算，设备选型 The Design of 35kV Electricity Room in Guangping Mining Area ABSTRACT With the rapid development of economy and the modern industrial construction, the require of power system is constantly improving. Therefore, the design of electric room which is an important part of power system is also need to improve constantly. Only in this way can we meet the need of growing electricity loads and adapt to the complex and changing electricity environment. Speaking of the enterprise， innovation, improving the utilization rate of production, reducing the energy consumption of production, becomes even more important. This graduation design is the design of 35kV electricity room in Guangping mining area which mainly aims at the electricity demand of SuQiao coal. The power supply voltage of this area is very low and the power management is chaotic，which seriously impact the production and construction. Therefore, the construction of this project is according to the need of production and construction of mine, also it have an important meaning in the coordinated development of local economy. This design start from the perspective of engineering, according to the principle and