广场馈电线改造及设计论证

Place Feeders Transformation and Design Argument

通过乘坐电车观察电压表、电流表,计算获得电车所到之处线路电压损失,用电压损失和线路电流计算求得牵引网电阻,用牵引网电阻计算求得钢轨电阻。用技规中接触网允许最低电压和电车使用直列档时最大电流求得牵引网电阻,最后用牵引网电阻确定馈电线截面。

Through the observation of vohtmeter, and ammeter by tram, the line voltage loss wherever the tram went is obtained. The traction resistance is obtained by the calculation of voltage loss and line current. The rail resistance is obtained by the calculation of the traction resistance. The traction resistance is obtained by the minium voltage of＇ catena^y allowed in the trchnical rules, and the maximum current in the tram - line file transfer. Finally, the feeder section is determined by the traction resistance.