Improvement built-in diagnostics devices of contact network

The article describes the priorities in the sphere tokosеma to improve traffic safety, the development of high-speed and high-speed traffic. To ensure the normal functioning of traffic and rail transport need uninterrupted transmission of electricity. Diagnosis of elements of contact network is one of the important task to prevent power system faults, including those that could lead to an emergency situation. The article deals with the built-in diagnostic system, how they work, an embodiment of their application.