Impulse current measurement device using rogowski coil

摘要

Disclosed is an impulse current measurement device using a Rogowski coil. A current measurement device configured to include a Rogowski coil, a signal processing unit including an integrator, and a signal line electrically connecting the Rogowski coil with the signal processing unit includes a protection element provided in the signal processing unit to prevent circuit damage to the signal processing unit by an output signal of a high voltage outputted from the Rogowski coil due to an impulse current, and configured with a spark gap or a varistor.