This paper proposes novel techniques for automatically extracting information from overhead lines based on automatic image/video processing. Three application scenarios are presented: (a) detecting snow and ice coverage on insulators for overhead lines; (b) detecting swing angles of insulators; (c) quantifying the visibility of insulators at transmission lines with typical backgrounds. Experime...

Lightning strikes to overhead transmission lines cause travelling waves which propagate along the overhead line and enter substations where they cause overvoltages which can pose a risk to any items of equipment connected, such as cables or transformers. With the use of metal-oxide arresters, these overvoltages are reduced to values which, taking into account an adequate safety margin, are belo...

Abstract To address the challenges in fault location distribution networks, of magnetic field under overhead line and its relationship with three-phase currents are explored this paper. At same time, considering influence sensor installation position, sag galloping on field, a grounding method an based dual-axis trajectory is proposed. The analytical expressions x -axis y obtained by least squa...