Design, construction and calibration of three devices to measure directly lightning parameters

This paper describes the design parameters, construction and calibration of three devices: a Differentiating Rogowski Coil, a Integrating Rogowski Coil and a Shunt Resistance to measure directly the following lightning parameters: Peak Current Amplitude, Current Rate of Rise, Stroke Current Impulse Shape and Action Integral. These three devices were installed in a guyed insulated tower of 30 meters.