January 9, 2025 by Ronald D. Hernández, Mark F. Lachman, Andre Lux, John Foschia The dielectric frequency response of insulation in power system apparatus is influenced by frequency and temperature. Specifically, temperature is governed by a parameter known as activation energy. This article explores the significance of activation energy in estimating the power factor of dielectric insulation over a range of temperatures and frequencies when using the Arrhenius equation.
