PSAT Power systems analysis tools that include: fundamental calculations, short circuit calculations, load flow calculations, reliability studies, stability analysis and transients calculations. click here Fault calculations Calculation of 3-phase, 2-line, 2-line-to- ground and line-to-ground fault currents for radial and network (grid) models. Click to go to the EPDMIS. Stability studies For such studies/analysis (operating under DOS platform), refer to Page of downloads (Power systems analysis tools).