Вісник № 02. Проблеми удосконалювання електричних машин і апаратів. Теорія і практика
Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/62666
Переглянути
2 результатів
Результати пошуку
Документ Increasing the functional reliability of industrial electrical networks 6-10 kV by integrating vacuum reclosers(Національний технічний університет "Харківський політехнічний інститут", 2022) Kalinchyk, Vasyl Prokopovich; Pobigaylo, Vitaliy Anatolievich; Borychenko, Olena Volodimirivna; Kuzovkin, Sergii Borisovich; Yatsenko, Oleksandr VolodymyrovychTopical matter of power supply for today is effective increase in the reliability of power supply in medium voltage overhead power systems by sectioning of lines with switching devices, such as disconnectors, controlled disconnectors or sectioning points. In such schemes, the manual approach to emergency management is used. This kind of schemes can be used where the overhead power lines are. Protective device on the outgoing feeder is switched off as soon as damage occurs in any area. As a result, all consumers of the line lose power for a long time. Remotely operated disconnectors or remote controlled sectioning points can also be installed instead of manual line disconnectors. This process of damage localization differs only in that all switching operations are performed remotely. Decision on switching is made by the dispatcher, constant communication with each controlled element of the network is necessary, otherwise it becomes virtually uncontrollable and the entire effect of remote control of disconnectors is eliminated.Документ Modern approaches of high-voltage transmission lines monitoring(Національний технічний університет "Харківський політехнічний інститут", 2022) Honcharov, Yevhen; Kriukova, Nataliia; Markov, Vladyslav; Poliakov, IhorTransmission lines require timely inspection and monitoring to prevent emergency situations during operation. System emergency situations as blackout are very undesirable, so they need their previous detection and prevention. Accordingly, this can be avoided by detailed monitoring the functioning of all elements of the power system. The directions of remote control for researching the operational state of electric power facilities through the use of special equipment, in particular aerial vehicles, have gained sufficient development. Possibilities of practical means of remote monitoring of power transmission lines are also considered. Due to their relatively inexpensive use and ease of operation, distant controlled aerial vehicles are an effective approach for surveying high-voltage power lines. A number of advantages of using distant controlled aerial vehicles are the extended functionality of monitoring quality provided by modern equipment. Functional analysis of modern on-board equipment indicates the possibility of detecting research objects on a real-time scale, due to the use of telemetry, satellite and combined television and thermal imaging systems, with the possibility of detailed observe. The most perspec-tive is the use of combined heat-television systems, which allow improving the technical characteristics of the surveillance system significantly. This method provides monitoring of heat losses, detection of overheated elements of transmission lines and assessment of the performance of elements. Such technology ensures more safer and timely detection of malfunctions, threats to operation and carrying out work on their elimination. In addition, the fields of application of distant controlled aerial vehicles as surveys for the design of energy systems are increasing.