摘要
牵引变电站的变压器采用V/v接线方式,铁路机车在不同状态下功率和功角大小都存在差异,造成牵引供电线路新投产间隔带负荷测试存在较大困难。为此,对牵引供电线路带负荷测试方法进行分析,为判断TA或TV回路极性提供依据。通过分析牵引供电系统的接线特点,分别提出系统空载容流测试、采用电容器组测试和实际电力机车测试等3种方法。应用所提出的测试方法对多条牵引供电线路进行带负荷测试,结果显示理论推导结果和实际测量结果一致。
V/v connection mode is adopted in transformer of traction substation. Power and power angle of railways engine are different in different status, which brings more difficulties on-load test of new interval of traction power supply line put into operation. For that reason, the on-load test method of traction power supply line is analyzed, which provide reference to the judgment of TA or TV circuit polarity. By analyzing characteristics of traction power supply system connection, three methods are proposed including system no-load capacitive current test, test by using capacitor bank and test by using real electric power locomotive engine. Several on-load test of traction power supply lines are carried out by applying proposed test methods. Results show that results of theoretical deduction are consistent with that of actual measurement.
出处
《广西电力》
2017年第4期21-23,共3页
Guangxi Electric Power
