An approach to calculate insulation resistance (IR) at different temperatures and voltages

Analytical methods for determining insulation resistance (IR) for solid insulation systems at various ambient temperatures and applied voltages are presented. The methods used are based on trending of the IR at various temperatures and voltages. A model for insulation resistance, which precisely shows the trend of its variation under the influence of a single environmental parameter while all other parameters are held constant at a fixed defined environment, is developed. Experimental data are used to validate the proposed analytical methods