Digital Protection of Traction Network and Setting Calculation Features

The reliable operation of DC traction network feeders' protections is one of the main vehicles problems. The usage of special devices was proposed to solve that problem., but it did not raise the system reliability. Protection devices reacted to one parameter: current., voltage., resistance., heating of current-carrying parts. Only the digital equipment creation makes possible to create protection devices., which responds to the transient phenomena signs in the traction network.