The course is intended to provide theoretical knowledge and practical skills in the following fields: structure of the power system, network transformations, process of power transmission and distribution, network elements used for transmission and distribution tasks interpretation and determination of parameters of transmission network elements used for calculations, representation of the elements power line and transformer operations power and voltage conditions of steady state operation, power losses application of symmetrical components fundamental effects of short-circuits and switches, calculation Principles of star point earthing, related phenomena Substation and busbar topologies Basics of short-circuit protection