The invention discloses a double-protection grounding wire method of a direct-current traction power supply double-insulation contact network system. The method comprises the steps: laying a first protection grounding wire along a line in a through manner, enabling two ends of the first protection grounding wire to be connected to a station ground network, and enabling the first protection grounding wire to be connected with each supporting column respectively as a short-circuit monitoring path when a contact network is disconnected and overlapped with the supporting columns; and laying a second protection grounding wire is along the line in a through manner, enabling the two ends of the second protection grounding wire to be connected to the station ground network, enabling the second protection grounding wire to be connected with an insulation neutral section between the basic insulation and the auxiliary insulation on each supporting column, enabling the second protection groundingwire to be insulated from the supporting column and to serve as a monitoring path for basic insulation flashover or damage. The double-protection ground wire is laid along the line in the through mode, the two ends of the double-protection ground wire are connected to the station ground network, a basic insulation flashover or damage monitoring and a short circuit monitoring path when the contactnetwork is disconnected and overlapped with the supporting columns are provided, and meanwhile an urban landscape coordination requirement is met on the premise that safety and reliability are met.
本发明公开一种直流牵引供电双重绝缘接触网系统双保护接地线方法,包括第一保护接地线,沿线路贯通敷设、两端接至车站地网,并分别与每根支柱连接,作为接触网断线搭接支柱时的短路监测通路;和第二保护接地线,沿线路贯通敷设、两端接至车站地网,并分别与每根支柱上基本绝缘与辅助绝缘之间的绝缘中性段连接,与支柱绝缘,作为基本绝缘闪络或损坏的监测通路。本发明设置的双保护接地线,沿线路贯通敷设、两端接至车站地网,提供对基本绝缘闪络或损坏的监测及接触网断线搭接支柱时的短路监测通路,同时在满足安全可靠性的前提下,兼顾城市景观协调需求。
Double-protection grounding wire method of direct-current traction power supply double-insulation contact network system
一种直流牵引供电双重绝缘接触网系统双保护接地线方法
2020-10-23
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 |
Europäisches Patentamt | 2020
|Direct-current traction power supply
Engineering Index Backfile | 1933
|Double-wire system ground power supply network switching control method
Europäisches Patentamt | 2023
|