FLD7 - Complex Potential Electric Fields

Finite element solution of flat and axi-symmetric two dimensional electrostatic fields with combined resistive and capacitive distribution of potentials. The grids can have up to 30000 nodes. Potentials are calculated as complex numbers. The program uses full screen mode, which is available only in Windows XP and earlier versions.

The program is used for insulators and bushings with resistive coatings and for surge arresters. Here, conductivities are functions of field strength, and this can be handled by the program. Another application is in devices with surface layers with floating potentials.

Often a large number of configurations are analyzed, where the geometries are similar and only the coordinates are different. In such cases new input can be made up based on an existing input file, simply by answering questions, while the geometry is displayed on the screen. The finite element grid is modified automatically, to suit program requirements.