亚吉铁路牵引变电所进线相关电气参数的研究

Analysis of Ethiopia Addis Ababa-Djibouti Railway Traction Substation Incoming Line related Electrical Parameters

在国外电气化铁路工程中,因所在国家或地区的外部电网电压等级与中国不同,相关电压等级的相关电气参数无法从国内规范中查询,海外牵引变电所工程中的安全净距和导线相间距等关键参数需重新计算、校验。埃塞俄比亚-吉布提铁路(Sebeta-Mieso段)牵引变电所的外部进线电源电压等级为132 kV/230 kV,结合该项目,本文研究了非国内常规电压等级下的牵引变电所部分电气参数计算方法。

In the overseas electrified railway projects,due to the external power grid voltage level in these countries is different from China.The relevant electrical parameters of the relevant voltage grade cannot be inquired from the domestic specifications.In overseas traction substation project,key parameters such as safety clearance and spacing between phases of conductor should be recalculated and calibrated.The external incoming power supply voltage level of the Ethiopia Addis Ababa-Djibouti railway(Sebeta-Mieso section)traction substation is 132 kV/230 kV.Combined with this project,this paper studies the calculation method of some electrical parameters of traction substation under non-domestic conventional voltage level.