摘要
提出需要研究电压互感器受到的直流电流的影响,以及抵抗直流电流影响的能力。指出采用实际的电压互感器来进行试验,计算得到在不同的直流电流情况下的电压互感器一次侧的励磁电流波形,将计算结果和试验结果进行对比,结论为计算结果可以很好地模拟电压互感器在直流电流影响下的励磁电流波形情况。
The high voltage net will run using the way of the AC net working together with the DC net, in this way, the De coming from the DC net, the accurate DC coming from the solar magnetism, and induction current from the terrestrial magnetism, will have influence on the TV＇ s operation. So how the TV works normally under the influence on the DC, and how great DC can lead to the TV＇ s work unusually need to be studied. And the data using the practical TV is tested. When the DC enters to the TV, the changing condition of it＇ s magnetizing current＇ s waveform is studied, and gets this waveform using Oscillograph. Using the average magnetizing curve, the waveform of the current of the TV＇ s high voltage side when it is under the influence of the every kind of the DC is calculated, after this, the results comparison between calculation and test is put forward. It is found that the result of the calculation is great accuracy to the result of the test which can meet the needs.
出处
《山西电力》
2009年第2期18-19,22,共3页
Shanxi Electric Power
关键词
高压电网
直流电流
电压互感器
励磁电流
平均磁化曲线
high voltage net
direct current （DC）
voltage transformer （TV）
the magnetizing current
average magnetizing
