Ponomarev P. Improvement of hydrophobic surface high-voltage electrical power equipment

Object of study - the dielectric and exploited performance of the hydrophobic coating of cold hardening for high-voltage insulators; the aim - to improve technology and enchance restoration of porcelain and glass exterior insulation by mechanized application in the field of hydrophobic coatings based on silicone compound for areas with high levels of atmospheric pollution and the study of electrical processes at the surface in difficult conditions; research methods and apparatus - to use the theories of corona discharge, polymerization and redox reactions to the study of corona discharge on the solid silicone coating; theory of experimental design for optimization of the hydrophobic composition, computer and physical modeling, experiments on real insulators; theoretical and practical results - the effect of various fillers, which are introduced into the compositions based on organosilicon compound, the properties of the coating with the conditions of exploitation in the areas of air pollution, especially a systematic development of the electrical processesat the surface of the insulation with a hydrophobic silicone coating and without in terms of pollution; optimized for repellent composition of the outer insulation; novelty - shows the mechanism of degradation of solid silicone coating under conditions of prolonged action of a corona discharge; formulated criteria optimization of the hydrophobic composition; investigated dependence of leakage current, maximum amplitude and duration of surface discharges on the insulator surface with a solid silicone coating when tested on trekingoerozionnal sustainability; the degree of implementation - an advanced technology of hydrophobic coatings used during the preventive measures to more than 20 existing substations voltage class up to 330 kV inclusive of the main provisions included in the sectoral regulatory document ГНД 34.03.603-2004; scope of use - the restoration and enhancement moisture-discharge characteristics of high-voltage insulators, which are operated in areas with high levels of air pollution.