轨道交通低压配电负荷能力的研究

为了设计科学的轨道交通系统降压变压器的额定容量和有关线缆、开关的参数和指标,设计人员必须针对站房内所有用电负荷设备的容量实施精准的核算。文章以某地的地铁系统站房内负责照明、泵类设备动力、弱电系统、电动扶梯等等的用电负荷为目标,对该地铁线路某样本车站中相关的用电负荷需要的容量进行实际测量。结果是实测需要系数比理论值小,因此在设计时,需要依据实际情况进行选取。

In order to design scientific rated capacity of step-down transformer,as well asthe parameters and indicators of cables and switches in rail transit system,designers must carry out accurate calculationabout the capacity of all power load equipment in the station.This paper aims at the power load of lighting,pump equipment power,weak electricity system,escalator and so on in the subway system station of a certain place,and actually measures the capacity required by the relevant power load in a sample station of the subway line.The result is that the measured demand coefficient is smaller than the theoretical value,so in the design practice,choices must be made according to the specific situation.