Development of Lightning Detection System Using Large-diameter Rogowski Coil and its Performance Evaluation Results

A wind turbine installed in winter lightning areas is required to be equipped with a detection system that can accurately detect a lightning strike. The lighting detection systems using a large-diameter Rogowski coil with high measurement accuracy are widely used, but it is expensive and costs more than one million yen per unit. In this paper, we report the result of the frequency characteristic measurement of the self-made lightning detection system using a large-diameter Rogowski. The system is manufactured at a low cost, is cheaper than the currently popular large-diameter Rogowski coil type lightning detection system.