目前,我国电气化铁路部分区段采用“二合一”的模式,即牵引网与10 kV信号网合一,在变电所采用牵引变电所与10kV配电所合二为一;同时,10 kV采用两路电源供电,一路电源由牵引网55 kV或27.5 kV经动力变变为10 kV供给配电电源;另一路则由地方35 kV变电站供给10 kV电源,所内经过断路器、母线再分别给自闭、贯通线及站场设备供电。就引自牵引网的电源即由动力变供给的电源质量不稳定问题提出建议及解决方法。 At present, some sections of China’s electrified railway adopt “two in one” mode, that is, the traction network is integrated with the 10 kV signal network, and the traction substation used in the substation is combined with the 10 kV distribution substation. Meanwhile, 10 kV is supplied by two power supplies. One power supply is converted from 55 kV or 27.5 kV traction power grid to 10 kV power distribution and the other is supplied by 10 kV local 35 kV substation. After passing through the circuit breaker and the bus bar, To autistic, through-line and station equipment supply. On the lead from the traction network that is power supply variable power supply instability issues and suggestions.