Topological considerations on the symmetrical components transformation

This paper presents the well-known symmetrical components transformation (S CT) by means of a different approach from the traditional matrix analysis: a topological lecture provides, in fact, the results obtained by the existi ng analysis in a more suitable form for network applications, This approach leaves more space to the intuitive analysis, simplifying the application o f such a method for teaching purposes, and completing the traditional mathe matical view, Moreover, the use of graph concept allows the unified analysi s of unbalanced faults leading the matter to the general theory of balanced three-phase systems, Typical for the physical balanced networks, the real convenience of SCT is also confirmed from the topological point of view, ev en for the fault analysis.