Characteristic of Upward Lightning Currents from a Wind Turbine and its Lightning Protection Tower

Abstract

We have measured the electric currents of the upward lightning that hit on a wind turbine and its lightning protection tower during Japanese winter seasons using Rogowski coils from 2006 to 2009. With the recorded data, we have performed a study of the total charge transfer, peak current, duration, and rise time for winter upward lightning. It was found that mean value of the upward lighting can be characterized with a total charge transfer of 113.3 C, a peak current of 5.3 kA, a duration of 200.1 ms, and a rise time of 7.7 ms, respectively.