The invention discloses a section post structure applied to an alternating-current double-tracked electrified railway bilateral power supply mode. The functions of parallel power supply of a power supply arm tail end contact net under the normal condition and cross-section power supply of adjacent traction substations under the condition that traction substations fail and quit operation can be maintained. Uplink and downlink contact network parallel power supply and left and right side power supply arm bilateral power supply are realized by adopting a circuit breaker mode in a section post; agroup of voltage transformers, lightning arresters and a 27.5 kV feeder line are respectively added to a left power supply bus and a right power supply bus. The voltage transformer is used as a newlyadded feeder line power supply side voltage detection device of buses at two sides. The lightning arrester serves as a voltage transformer overvoltage protection device, the two newly-added feeder lines, the left side power supply arm contact net and the right side power supply arm contact net are in-phase power supplies respectively, the two newly-added feeder lines are used for supplying power to joint type electric split-phase uncharged neutral sections between two adjacent traction substations and at the tail end of the power supply arm, and the two newly-added feeder lines can be standbyfor each other.
应用于交流复线电气化铁路双边供电方式的分区所构造,能够维持正常情况下供电臂末端接触网并联供电以及牵引变电所故障退出运行情况下相邻牵引变电所越区供电功能。分区所采用断路器方式实现上下行接触网并联供电和左右侧供电臂双边供电,在其左右侧供电母线分别增加一组电压互感器、避雷器以及一回27.5kV馈线,电压互感器作为两侧母线新增馈线电源侧检压装置,避雷器作为电压互感器过电压保护装置,两回新增馈线与左侧供电臂、右侧供电臂接触网分别为同相电源,通过该两回新增馈线对两相邻牵引变电所间、供电臂末端锚段关节式电分相不带电中性段进行供电,两新增馈线可互为备用。
Section post structure applied to alternating-current double-tracked electrified railway bilateral power supply mode
应用于交流复线电气化铁路双边供电方式的分区所构造
2020-07-17
Patent
Electronic Resource
Chinese
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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