Inverse problem of voltage over electrostatic shield gap in helical transformer windings

Multi-conductor transmission line model of a helical winding for an analysis of the very fast electromagnetic transients will include the lumped voltage between the edges of the open electrostatic screen, previously found to be responsible for experimentally found anomalous distortion of the travelling waves. Contrary to the former model with distributed voltage and axial symmetry, the new model requires parameters beyond those of classical theories of wave propagation in transformer windings. The additional parameters are found by matching the simulated voltage transients with the experimental results.