New Type of Impulse Quenching Line Lightning Protection Device

To prevent lightning faults on 110 kV overhead lines operated without a ground wire, it is necessary to use special devices capable of withstanding the multiple currents of a direct lightning strike. This article is dedicated to one of such promising devices - a closed-type impulse quenching line lightning protection device (IQ LLPD). To demonstrate the performance of the device a complex of research electrical tests is described with a detailed description of unique techniques.