Stressed-volume approach and electric field spectrum

Abstract

A representation called the ‘stressed-volume’ is introduced to describe the electric field distribution in a given media (or high voltage design). The utility of the concept is to compare various designs and conscientiously estimate highest electric fields generated within a medium; the stressed-volume estimates can be converted to electric field spectrum, which could also be used to improve designs. The representation couples the geometrical effects due to electrode/conductor arrangements to high voltage performance in dielectrics, and enables material reliability models to be developed. It condenses the two-or three-dimensional electric field distributions to a xy-plot for elementary analysis. The mathematical background of the representation are presented.