An Identification Method of Magnetizing Inrush Current Phenomena by Voltage Waveform

摘要

In this paper, the authors propose a new method for identification of magnetizing inrush current phenomena. In general, the identification is performed using the current waveform. However, saturation of current transformers makes it impossible to obtain such a waveform. Therefore, the authors introduce an identification method using the voltage waveform, in which the transformer saturation voltage does not occur. By applying Aitken's Δ~2 process, it is shown that the new identification method gives accurate saturation start and end times.