The current trend of complication of the modes of operation of the traction power supply system, an increase in the amount of damage from events leading to downtime of trains, the need to improve operational efficiency, actualizes the task of using monitoring systems. The features of the traction power supply system determine the requirements for the organization of monitoring parameters in real time. One of the main requirements is to ensure the autonomous operation of monitoring devices (systems) for a given period of time. Using the example of monitoring the process of ice formation on a contact network, taking into account the specifics of disturbing environmental influences, the basic principles of building a monitoring system, the structure of technical means, a multi-mode algorithm of functioning, a method for calculating the parameters of a power source are proposed.

Keywords: power supply system, contact network, monitoring, ice detection, automation

Currently, Russian Railways (RZD) is characterized by an increase in the weight of trains, an expansion of the fleet of sections with high-speed movement of electric rolling stock. All this leads to the complication of the modes of operation of the power supply system, increased responsibility and possible damage from the downtime of trains. Of particular importance are the monitoring systems of the contact network, as an element of the power supply system that does not have a reserve. A significant number of Russian Railways sections are subject to the formation of ice and, as a result, possible serious operational risks and costs. One of the directions of minimizing the damage from the formation of ice and measures to eliminate it, according to the authors, is automation. The article provides an assessment of the possibility and directions of automating the fight against ice on the basis of ice detection systems at the early stages of education.

Keywords: power supply system, correct functioning, automation, ice detection system, contact network monitoring

Currently, Russian Railways are characterized by an increase in the weight of trains, an expansion of the fleet of sections with high-speed movement of electric rolling stock. All this leads to a complication of the operating modes of the power supply system, increased liability and possible damage from idle trains. At the same time, monitoring systems of the contact network, as an element of the power supply system that does not have a reserve, are of particular importance. On a significant number of sections of the Russian Railways, the wires and cables of the contact network are subject to ice and frost formations and, as a result, serious operational risks and costs. Minimizing the damage caused by the formation of ice and measures to eliminate it is possible if it is detected at the initial stage. The article provides an assessment of the possibility of using systems based on changes in the weight of wires for the purposes of early detection of ice and frost formations.

Keywords: ice and frost formations, early detection, contact network, carrier cable, contact wire