This study describes the use of entropy model for some systems used in the dielectric technique. In this manner, the changes considered in the breakdown voltage are similar to those described by the probability entropy formula. This is particularly the case due to the radius ratios of spherical and cylindrical electrode systems modelled in the high-voltage technique. The breakdown voltage variations in the spherical and cylindrical electrode systems are consistent with the Shannon formulation of Information. These information curves demonstrate how the system should be operated under optimal conditions and these curves exhibit entropy changes due to voltage and field strength.