Development of Three-Dimensional Electric Field Analysis by Segment Arrangement Based on Charge Simulation Method

Abstract

This paper describes the development of three-dimensional electric field analysis by using so called segment method which enables to calculate the electric field with high accuracy and with enhanced efficiency, for high voltage apparatus.
In the segment method, electrode configuration of high voltage apparatus is simulated by small components which are called as segments and by the arrangement of several kind of such segments.
In this calculation, charge simulation method is used which is suitable for segment application. As basic segments, spherical, cylindrical and ring segments are used and in addition to these, as subsegments, disc and elbow segments are adopted for good simulation of the total electrode configuration.
In this paper, fundamental construction and arrangement parameter of segments were discussed. Moreover the segment method were applied to an actual high voltage apparatus and the calculation accuracy was discussed. It was clarified that the segment method has enough calculation accuracy and is very efficient means for three-dimensional electric field analysis.