对自闭供电线路接地保护方式的探讨

Discuss about Ground Protection of Automatic Blocking Power Supply Line

自动闭塞 (简称自闭 )电线路担负着铁路行车信号供电的重要任务。在自闭线路的所有故障中 ,接地故障占 80 %以上 ,故探讨接地保护及监测方式对提高自闭线路供电可靠性有着重要意义。本文对V -V接线、零序电流保护和Yo/Yo/ 接线各自的适用范围进行了探讨。

The automatic blocking power supply takes on supplying power for the train running signal.The earth fault accounts for 80% of all faults of the automatic blocking line,so discussing about ground protection and monitoring way is important to improve the reliability of automatic blocking power supply line.This paper discusses the applicability of V-V connection,zero sequence current protection and Y 0/Y 0/ connection respectively.