ABSTRACT
Electrified transport (industrial locomotives, escalators, trams, trolley-buses, etc) is characterized by irregular schedule of electric energy consumption, which is especially intense during starting up stage and less considerable during steady motion, reaching its minimum while braking. Hence, traction substations (TS) are constantly affected by significant load fluctuations. Electric potential on TS buses goes down at peak loads which appear due to the overlapping of the striking currents of several traction means. It slows down the starting process of electric transport and leads to electric power loss, which makes it necessary to increase the total capacity of TS power facilities in order to compensate peak loads.
