The invention discloses an electrified railway cut-through power supply system, and relates to the technical field of alternating current electrified railway traction power supply. An insulation joint is adopted to segment a power supply system, a section switch is arranged to be in short circuit with an insulation joint branch and a damping branch, during normal operation, two same-phase power supply substations achieve through power supply, and a running train takes current from two sides of the two substations at the same time; and when a short-circuit fault occurs in a certain section, the fault is cut off in sections, so that the minimization of the power failure range of the fault is realized. The damping resistor greatly limits the over-voltage of a train running into a non-electricity area, and the possibility of generating an electric arc is reduced; and if an electric arc is generated, due to shunting of the damping resistor and consumption of the electric arc power, the electric arc maintaining time can be greatly shortened, and an insulating joint and a contact line are protected. The system is mainly used for an electrified railway cut-through power supply system to eliminate arc discharge and remove faults.
本发明公开了一种电气化铁路贯通供电系统,涉及交流电气化铁路牵引供电技术领域。采用绝缘关节对该供电系统进行分段,设置分段开关短接绝缘关节支路和阻尼支路,正常运行时,两同相供电变电所实现贯通供电,运行列车同时从两个变电所双边取流;当某一区段出现短路故障时,故障分段切除,实现了故障停电范围最小化。阻尼电阻极大的限制列车闯无电区的过电压,减少产生电弧的可能性;如果产生了电弧,由于阻尼电阻的分流和对电弧功率的消耗,电弧维持时间将会极大缩短,保护绝缘关节和接触线。主要用于电气化铁路贯通供电系统,消除拉弧并切除故障。
Electrified railway cut-through power supply system
一种电气化铁路贯通供电系统
2021-07-20
Patent
Elektronische Ressource
Chinesisch
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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