CALCULATION OF PRIMARY AND SECONDARY PARAMETERS OF 400 kV TRANSMISSION LINE WITH THE LINECS COMPUTER PROGRAM

V diplomskem delu so predstavljeni izračuni za osnovne električne parametre vodov v uravnovešenem in neuravnovešenem sistemu ter vplivi upornosti zemeljskega povratka, s katerimi se je ukvarjal Carson. Izračune smo opravljali v programskem okolju Matlab. Ukvarjali smo se z vprašanjem, kako spremembe števila členov v Carsonovih neskončnih serijah vplivajo na ohmske in induktivne upornosti frekvenčno odvisnih impedanc nadzemnih vodov. Analizirali smo napake, ki se pojavijo pri spremembah teh členov. Izračunali smo tudi primarne in sekundarne parametre enosistemskega 400-kilovoltnega daljnovoda.In my diploma work I represent calculations of basic electric parameters of transmission lines in balanced and unbalanced systems as well as and the influence of ground return resistance with which Carson has dealt. The calculations were done in the Matlab program environment. We deal with the issue of how the changes of links in Carsons endless series affected on resistance and inductive resistance frequency-dependent of overhead transmission lines. We analyzed the faults which occur with changing these links. We also calculated primary and secondary parameters of a one system 400-kilovolt line