摘要
在我国,牵引变电站的变压器主要采用V/V型、V/X型和Scott型等联结方式。电源侧线路的功率和功角大小因牵引变不同的联结方式而存在差异,造成牵引供电线路新投产间隔带负荷测试存在一定的困难。鉴于此,本文对不同牵引变联结方式下的牵引供电线路带负荷测试方法进行分析,为判断电流互感器或电压互感器回路极性提供依据。应用本文的分析方法和结论对多条牵引供电线路进行带负荷测试,结果验证了本文分析结论的准确性。
Transformers in traction substations mainly use V/V type,V/X type and Scott type wiring methods.The power and power angle of the line on the power supply side are different due to the different wiring methods of the traction transformer,which causes certain difficulties in the interval load test of the new traction power supply line.Therefore,this article analyzes the load test methods of traction power supply lines under different traction transformer wiring modes to provide a basis for judging the polarity of current transformer or voltage transformer loops.Applying the analysis methods and conclusions of this article to carry out a load test on multiple traction power supply lines verifies the accuracy of the analysis and conclusions of this article.
作者
罗通
刘伟豪
LUO Tong;LIU Weihao(Heyuan Power Supply Bureau,Guangdong Power Grid Co.,Ltd,Heyuan,Guangdong 517000)
出处
《电气技术》
2022年第5期76-80,85,共6页
Electrical Engineering
