How to calculate Short circuit ratio and SCR from the three phase voltage source input parameters
The example in photo ( example pcsx file with v45 compatible file to open the example is attached having pdf extension) shows the grid represented by a three phase voltage source said to have SCC=10 and X/R ratio=10. How to verify the SCC and X/R theoreticallyto be the same using the input parameters of the three phase voltage source?
SCC, it should be SCR-Short Curcuit Ratio which is nothing but Short circuit MVA/ Plant capacity MW. In PSCAD the input for voltage source is Impedance, from which you can calculate Short circuit MVA. And X/R which is nothing but ratio of Reactance/ Resistance that you entered in the Voltage Source.