Current Measurement Technology Based on Rogowski Coil Low Voltage Apparatus

With the continuous development of low voltage apparatus theory and manufacturing technology, the current of low voltage apparatus products is increasing. The current measurement technology during the switching test has become a hot research interest. On the basis of analyzing the working principle of Rogowski coil, the current calculation method of Rogowski coil current transformer is discussed systematically. And the switching test circuit is designed based on the Rogowski coil low voltage apparatus. The results show that the Rogowski coil can accurately measure the switching test current of the low voltage apparatus and meet the switching test requirements of the related products.