Author: Pirmatov, N.B.; Shaulemetov, T.U.

Annotation: This article shows the research work on the matlab Simulink software for the study of the short circuit of a single-phase power autotransformer. For a single-phase short circuit, the results of the analysis are compared with the results of symmetrical components commonly used to analyze symmetrical failures in single-phase power systems. The influence of the first phase on the distribution of phase voltage and symmetrical discharge current associated with the stellar neutral is analyzed.

Keywords: power autotransformers, short circuit, active resistance, non-symmetrical modes, single-phase, voltage, amperage.