自动过分相装置与电分相区电压的兼容性设计研究

Study on Compatibility Design for Voltages of Devices for Automatic Passing of Phase Break and Neutral Section

我国电气化铁路牵引供电采用27.5 kV单相供电,由于线路负荷的多样性,按牵引容量及供电线路长度要求,主要采用AT或BT供电方式,牵引变压器接线主要以V/v、V/x、Scott或阻抗匹配平衡变压器接线为主。本文通过对电子开关地面自动过分相适应接触网不同供电模式进行分析,论述了多模式下的适应性,并对电子开关地面自动过分相装置的电压耐受能力提出设计思路。

The electrified railways in China adopt 27.5 kV single power supply,and mainly adopt AT or BT power supply mode depending on the traction loads and length of the power supply feeders due to varieties of line loads;the wirings of the traction transformer are mainly adopt the V/v,V/x,Scott or impedance matching balanced transformer wiring.With support of analyzing the different power supply modes which are adequate to the wayside devices of electronic switch type for passing of phase breaks,the paper illustrates the adaptability under the multi-modes,and puts forward the design thoughts on voltage withstand capability for wayside device of electronic switch type for passing of phase break.