SYSTEM AND METHOD FOR FAULT LOCALIZATION USING CURRENT OF TROLLY-FEEDER IN AT FEEDING SYSTEM

摘要

The invention relates to a fault point expression system using tram line and power supply line current in a single coil transformer power supply system of AC electrified railway and a method thereof,In general AC electrified railway power supply system (isolated power supply system) and high-speed electrified railway power supply system (parallel power supply system), the purpose is to more accurately describe the fault point in case of fault or short-circuit fault,A current measuring unit for measuring the current of tram line and power supply line;According to the information measured by the current measuring unit,A current ratio calculation unit that performs down current ratio calculation on single turn transformer (at) tram line and power supply line;And inputting the calculated current non information through the current non operation unit,A fault point expression unit that uses the current ratio between single turn transformers to represent the fault point;contain