牵引变电所阻抗Ⅰ段继电保护的整定分析

根据京沪高铁开通运行后牵引变电所发生的主变压器越级跳闸情况进行技术分析,针对性地采取对策,合理设置继电保护整定值,及时消除设备隐患,增强京沪高铁安全运行可靠性。

This paper analyzes the fault of a main transformer causing override trip accident in Beijing-Shanghai high speed railway traction power supply system.According to this problem,a reasonable method is employed,which is implemented by resetting the value of relay protection equipment.This strategy will promptly eliminate the hidden trouble of equipment,and guarantees the reliability of Beijing-Shanghai high speed railway＇s operation.