客运专线牵引变电所雷电过电压保护方案研究

主要研究了客运专线220 kV牵引变电所进线侧和馈线侧雷电过电压保护方案,基于ATP-EMTP软件建立牵引变电所雷电过电压仿真模型,对各种避雷器设置方案进行了仿真分析。通过仿真分析选择了最佳的避雷器设置方案,即进线侧在跨条两侧和变压器前均设置一组避雷器,馈线侧在电缆与接触网连接处和GIS开关柜内均设置一组避雷器。

Research of Lightning Overvoltage Protection Program for Traction Transformer Substation of Passenger Dedicated Railway Line

The lightning overvoltage protection program for enter line side and feeder side of 220 kV traction transformer substation of passenger dedicated railway line were researched.The lightning overvoltage simulation model of the traction transformer substation was established with ATP-EMTP,and the various lightning arrester setting methods were simulated and analyzed.The optimal arrester setting method was selected through simulation,that is for the enter line side a group of arrester respectively set in both sides of cross connection and in front of transformer,or feeder side,a group of arrester was respectively set in the joint of cable with over head contact line and in the GIS switch cabinet.