Temperature Rise of Porcelain Insulator under the Effect of Conductor Heating and Solar Radiation
Authors: Bikash Kafle, Janup Pokhrel, Brijesh Adhikary
Abstract— High temperature conductors are being investigated by an increasing number of electric companies as a method of increasing transmission line capacity. As a result, it is necessary to analyze the temperature rise of transmission line insulators when the current carried by the line conductor is high. This has generated concerns about the impact of these higher temperatures on the performance of all components connected to the conductor, including the insulators. And, an equilibrium temperature of an insulator is also dependent on the ambient weather conditions that can cause temperature increase or decrease. This paper presents the results of finite element simulation of temperature rise of a porcelain insulator due to conductor heating and solar radiation, by using COMSOL Multiphysics software. Remarkable temperature rise is seen at the interface between pin, cement and porcelain compared to other areas of insulator, where the temperature reading is in the region of solar radiation’s temperature. Due to this temperature rise at the interface, moisture in the air may penetrates into the interface, and support in the expansion of cement on the long run.
Keywords—High temperature conductor, temperature rise, porcelain insulator, conductor heating, solar radiation, cement
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Published In: International Conference on Role of Energy for Sustainable Social Development (RESSD-2023)
Date of Conference: 14th-15th May 2023
Conference Location: Kathmandu, Nepal
Publisher: IEEE Power and Energy Society Nepal Chapter
Cite the paper as:
B. Kafle, J. Pokhrel, B. Adhikary, “Temperature Rise of Porcelain Insulator under the Effect of Conductor Heating and Solar Radiation”, International Conference on Role of Energy for Sustainable Social Development, 14th-15th May 2023, Kathmandu, Nepal