济南R3线短路试验研究

Research on Short-circuit Test for Jinan Metro R3 Line

摘要:

短路对城市轨道交通的牵引供电系统危害十分严重,断路器中大电流脱扣保护、综合自动保护装置安全可靠动作可以减小短路对供电系统的冲击。依据济南R3线短路试验,探讨了如何合理科学地进行试验布置和测量,并对远端接地短路和近端节点短路的测试结果进行了分析。试验表明,济南R3线的保护设备对短路故障响应灵敏、可靠,为直流供电系统短路试验研究提供借鉴。

关键词:城市轨道交通;牵引供电系统;短路试验;

Abstract:

Short circuit is seriously harmful to the traction power supply system of urban rail transit. The safe and reliable operation of DC overcurrent tripper of circuit - breaker and comprehensive automatic protection device can reduce the impact of short - circuit fault. Based on the short - circuit test of Jinan R3 line, how to arrange the test and measure its data reasonably and scientifically is discussed, and the test results of the short circuit remote and near substation are analyzed. The test results show that the protection equipment of Jinan R3 line is sensitive and reliable to short - circuit fault, which provides a reference for the short - circuit test research of DC power supply system.

Key words:城市轨道交通;牵引供电系统;短路试验;