Aging Performance of Low-Density Polyethylene/Silicone Rubber Blends Insulators Under Contaminated Conditions
Abstract
Insulation materials are a vital part of the electrical system in all kinds of high voltage (HV) Transmission lines. Environmental stresses affect the performance of all types of insulation materials over time. Dielectric breakdown strength (DBS), Hydrophobicity, Leakage current, internal partial discharge and volume resistivity are all three degraded parameters in the service environment. The materials stand best in outdoor insulation, with the lowest partial discharge, highest breakdown strength, high hydrophobic, Lowest Leakage current, and highest volume resistivity. Enhancement of these parameters is a potential avenue for many researchers over the period. In this study, low-density polyethene (LDPE) under different nanofillers, including SiO2, TiO2, TiO2@SiO2, with different weight percentages, are used. This study investigates the behaviour of dielectric breakdown strength (DBS), Hydrophobicity and Leakage Current (LC) for 1000h test under contaminated conditions such as High voltage, heat, ultraviolet (UV) radiations, salt fog, humidity, and acid rain.
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