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Hello all!

I want to run a dynamic simulation using a single-phase to-ground fault. In the.sav I have all the correspondent information, including the negative and zero sequence parameters for the lines, etc...

I see that routine SPCB can determine the resulting pi model after an unbalanced fault for later be used for dynamic simulations. However, it has the part that they transform FACTS devices into constant admittance models. Also, I see that in version 33.5 it is possible to use the function distbusfault_2, which can also simulate unbalanced faults in buses and does not say anything regarding the simplification of FACTS devices models (or at least not explicitly).

So, I wanted to ask you, is there a difference between the two functions? Am I missing something?