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Centralize ice melting controlled system

Heavy deposits in the form of ice and a wet snow on current-carrying wires and lightning-protective cables of overhead transmission lines can cause numerous and long violations in operation of electric networks. The authors present a new centralized ice melting controlled system for overhead transmission lines with a different length and section of wires in the area of electrical networks. This system realizes simultaneous melting ice on three phases of transmission line by direct current impulses and allows decreasing consumption of the electric power and time of ice melting. The integrated indicator of efficiency allowing to compare schemes of ice melting at various thickness of a wall of ice, wind speeds, air temperatures and to define sequence of ice melting in the area of electrical networks is offered.