白糖包子的做法大全:谁能帮我翻译?

来源:百度文库 编辑:高考问答 时间:2024/05/05 18:32:19
本次毕业设计是对地铁的动力配电系统进行设计,来自于北京市政设计研究总院。地铁的动力配电系统设计首先是对动力配电系统的构成进行分类,分为区间动力配电系统和车站动力配电系统。分别对地铁车站和区间部分进行平面图和系统图的设计。通过对地铁车站中的动力设备进行负荷计算,得到各动力设备的容量。其次是根据负荷计算的结果对各种动力配电设备进行选型,如:低压柜、配电箱、UPS电源、变压器、暖通空调电控柜等。进行电容补偿来提高功率因数。最后,主要对配电线路的电缆的选型及敷设方法的设计,接地保护。

This graduation project is carries on the design to the subway power electrical power distribution system, comes from to study the main hospital to the Beijing municipal administration design. The subway power electrical power distribution system design first is carries on the classification to the power electrical power distribution system constitution, divides into the sector power electrical power distribution system and the station power electrical power distribution system. Separately partially carries on the horizontal plan and the diagram design to the subway station and the sector. Through carries on the load computation to in the subway station power equipment, obtains various power equipment the capacity. Next is according to shoulders the computation the result to carry on the shaping to each kind of power switching equipment, for example: The low pressure cabinet, the distributing box, the UPS power source, the transformer, warmly pass the air conditioning electrically controlled cabinet and so on. Carries on the electric capacity to compensate enhances the power factor. Finally, mainly and lays the method to the distribution line electric cable shaping the design, the earth protection .