USE OF TRANSFORMER MODEL FOR SHORT CIRCUIT CALCULATION IN PSCAD PROGRAM TOOL

V diplomskem delu je predstavljen postopek modeliranja idealnega in realnega modela transformatorja v programskem orodju PSCAD, ki smo ga izvedli na realnem primeru elektroenergetskega omrežja. Opravljena je tudi analiza simuliranih rezultatov z obema modeloma transformatorjev za različne prehodne pojave in stacionarna stanja, ki smo jih izvedli. Kratkostični tokovi in napetosti so tudi grafično predstavljeni in opisani.This diploma works presents the modeling procedure for ideal and real transformer models in program tool PSCAD, which we used in the real electrical power systems.The simulation results obtained by the ideal and real transformer models in PSCAD are compared and commentated for different case-studies and stationary states. Short-circuit currents and short-circuit impedance they are also described and presented graphically