Study of the Features of the Protection of Energy System Elements Caused by Excessive Local Heating Zobenko Oleksandr1, Loboichenko Valentyna2, Lutsenko Yurii3, Pidhornyy Mykola4, Zemlianskyi Oleg1, Hrushovinchuk Oleksandr5, Blyashenko Oleg6, Servatyuk Vasyl7 1Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defense, Ukraine, Cherkasy, Ukraine 2Department of Civil Security, Lutsk National Technical University, Lutsk, Ukraine 3Institute of public administration and research in civil protection, Kyiv, Ukraine 4Cherkasy State Technological University, Cherkasy, Ukraine 5The State Emergency Service of Ukraine, Kyiv, Ukraine 6Ministry of Defence of Ukraine, Kyiv, Ukraine 7The National Defence University of Ukraine named after Ivan Cherniakhovskyi, Kyiv, Ukraine Online Published on 09 February, 2023. Abstract The analysis of individual components and elements of energy systems, in particular, power supply systems, which can lead to disruptions in the functioning of these systems, was carried out in the work. It notes that electrical sockets are the places where ignition and subsequent fires can occur due to large values of transient resistance. For an example, a separate element of electrical networks (sockets), experimental studies were carried out on a laboratory installation under different conditions of its operation, which can cause its excessive local heating - damaged or undamaged contacts, the presence and absence of a thermal fuse. It is shown that it is the safest to use sockets with a normal connection, both with and without a thermal fuse, when applying the studied currents for 60 min, whereas the greatest danger can occur when applying a current of 16 A for sockets with affected contacts. It is recommended to use a thermal fuse in sockets designed for a current of 16 A and difficult to locate in places with excessive consumer properties such as service stations, auto repair shops, shopping areas, etc., to further increase the safety of power grid operation. Top Keywords Energy system, Electricity grid, Local heating, Current, Thermal fuse, Socket. Top |