I would like to get opinions when calculating Source Impedance Ratio (SIR) on a Power System.
Usually when calculating a three Phase fault it only takes into account positive sequence components, obtaining the source impedance ratio via the ratio of the source positive sequence component...
I'm Talking about Long AC Transmission Lines, not DC in this case. Thanks.
Transposition is done regularly in long AC transmission lines as a means of balancing transmission line frequency impedance and admittance in a long line, and that contribute to unbalance voltages. This is usually done...
I would like to know if Transposition on Transmission Lines could affect the basis and the way the power system is evaluated to set up the protection for the Transmission line? as compared to the non-transposed Transmission Lines.
Thanks in advance,
Regards,