An Indirect Techinique Utilizing The Lattice Approach and Superposition for Computing Switching Surges

Abstract
A new technique has been developed for analyzing switching transients on distributed power systems that is based on the principle of superposition. The main advantage of the new technique is in economy of computer execution time. A linear system must be assumed but frequency dependent parameters which result in multi-velocity waves can be included. The program that is based on the new technique utilizes step responses, that can be computed using existing programs or analog devices, to compute the desired transient responses. Because of the economy of the technique it is well suited for use in determining either the maximum transient voltage or the statistical distribution of peak transient voltages. The technique has been verified on both single-and three-phase test systems.

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