Modeling of Electrical Insulation System of Turbogenerators with a Higher Value of Coefficient of Thermal Conductivity and Associated Ecological Perspectives and Economic Benefit

Abstract

New technologies, production of electricity, and energy savings play a significant role in the rise of the economic potential of each country and have a significant impact on the environment. The growing demand for electrical energy and the use of turbogenerators in electricity production have led to their irreplaceable role. History shows that at the end of the 20th century and at the beginning of the 21st century usable energy from fossil fuels is running out, and renewable energies are still not developed enough to offer a full replacement. Therefore, any attempt to improve the quality of turbogenerators is of considerable value. Electrical insulation systems (EIS) of turbogenerators have been developed and optimized during the last 60 years. This article discusses how to improve the removal of heat from electrical insulation systems and at the same time increase the performance of high-voltage electrical equipment thereby reducing weight and reducing their dimensions by increasing the value of the coefficient of thermal conductivity of electrical insulation systems. An increase in thermal conductivity can be achieved by adding a filler with a higher thermal conductivity coefficient to electrical insulation systems. By modeling the distribution of the temperature field with a change in the coefficient of thermal conductivity, the assumption that fillers can affect the thermal properties of the electrical insulation system was verified. The economic benefit of an electrical insulation system with a higher value of the thermal conductivity coefficient is stated at the end of this article.