Research of AC Traction Network’s Relay Protection Operating Under Heavy Haul Traffic Conditions

Abstract

Abstract Backgrounds and trends of increasing volumes of heavy haul traffic in the Far East of Russia are briefly reviewed. The results of long-term observations of the load conditions parameters of the relay protection gears of AC traction network of Russian Railways Holding are given. Changes that occurred in the operation of the AC traction network’s relay protection during last 10 years in the example of traction substations at the Far East of Russia are considered. The conditions of the experiment and the method of the obtained data processing are described in detail. The need for the development and implementation of relay protection devices with new forms of angular characteristics at Russia’s traction networks is justified.