采用不同基准容量计算VX接线单相三绕组牵引变压器阻抗电压的研究  

Study on calculation of the impedance voltage of VX connection single-phase three-winding traction transformer with different reference capacities

作　　者：武利军 WU Lijun(Wolong Electric of Yinchuan Transformer Co.,Ltd.,Yinchuan Ningxia 750001,China)

机构地区：[1]卧龙电气银川变压器有限公司,宁夏银川750001

出　　处：《宁夏电力》2020年第5期6-8,28,共4页Ningxia Electric Power

基　　金：宁夏科协2020年度学术交流项目与创新驱动助力工程项目(NXKX-XS2020041)。

摘　　要：针对VX接线单相三绕组牵引变压器阻抗计算采用基准容量规定不统一的问题,选取额定电压为220 kV、高压容量40 MV·A、中压绕组容量(25+25)MV·A、阻抗电压为10.5%的VX接线单相三绕组牵引变压器为研究对象,分别收集阻抗电压以中压绕组容量为基准和以高压绕组容量为基准的产品技术资料,从阻抗、成本、损耗综合分析两种方案的优劣性,确定VX接线单相三绕组牵引变压器阻抗设计以高压绕组容量为基准为最佳设计方案。In view of the inconsistency of the reference capacities used for calculation of the impedance of VX connection single-phase three-winding traction transformer,the VX connection single-phase three-winding traction transformer with the rated voltage of 220 kV,high-voltage capacity of 40 MV·A,medium voltage winding capacity of(25+25)MV·A and the impedance voltage of 10.5%was selected as the research object,and the product technical data of the impedance voltage based on medium voltage winding capacity and high-voltage winding capacity were collected separately.In this way,the advantages and disadvantages of the two solutions were comprehensively analyzed from the perspectives of impedance,cost and loss,and the impedance design of the VX connection single-phase three-winding traction transformer based on high-voltage winding capacity was determined as the optimal design solution.

关 键 词：VX接线 牵引变压器 基准容量 

分 类 号：TM922.7[电气工程—电力电子与电力传动]