This article gives an overview of the operation of dehumidification plants located in indoor ice arenas. Since at the moment the operation of such facilities does not include control of such parameters as CO2 content, the possibility of implementing this task using the existing equipment is considered. A method of setting the automatics of maintaining the CO2 level in the set parameters is given. The principle of dehumidifier operation and problems of CO2 level control are considered. The method of tuning the control loops is also described. The use of CO2 controlled dehumidifier equipment will create comfortable conditions for the occupants of the ice arena, which in turn will lead to a reduction in energy and heat consumption.

Keywords: automatic control system, control loop, control object, process stabilisation, air drying, air drying plant

This article uses the structural-functional method. The proposed study shows how many factors influence the performance, efficiency of enterprises and how important it is to follow the latest technologies and vectors of their development. Everything is important, from the material and technical equipment of personnel to the timely replacement of obsolete or outdated devices that have reached the limit of their own reliability. No reliance should be placed solely on technical means or personnel performance - these two crucial aspects must work together, be continuously monitored and have everything they need to perform their tasks in a quality and timely manner. It is also important to learn from the experience of previous years, so that it is possible to understand what mistakes have been made and, therefore, to act appropriately in order to avoid them again. It is also important to develop such positive trends as the transition to remote control of relay protection devices. To date, we must pay special attention to information security of the complexes' operation during the transition to remote control, as the current realities of work at power facilities require exactly that. Equally important is the purpose of this article to forecast future trends in RPA development over a period of twenty years.

Keywords: relay protection and automation, improvement of the regulatory framework, introduction of relay protection