MODELING OF LSI PROTECTION CHARACTERISTICS OF LV CIRCUIT BREAKER IN EASYPOWER PROGRAM

U ovom završnom radu izrađena je simulacija u EasyPower programu za koordinaciju zaštite. Pri koordinaciji koristili su se niskonaponski prekidači SIEMENS i SCHNEIDER. U drugome poglavlju kratko je opisan rad prekidača te je dana podjela istih. Također, tijekom rada dan je uvid u osnovne pojmove i definicije vezane za električni luk i njegovo prekidanje. Treće poglavlje daje detaljniji uvid u neke od niskonaponskih prekidača i način na koji oni rade te njihove pripadajuće krivulje prorade. U četvrtom poglavlju objašnjena i opisana je simulacija te su dani rezultati iste. In this thesis, a simulation was created in the EasyPower program for protection coordination. SIEMENS and SCHNEIDER low-voltage switches were used for coordination. In the second chapter, the operation of switches is briefly described and their division is given. Also, during the work, an insight into the basic terms and definitions related to the electric arc and its breaking was given. The third chapter gives a more detailed insight into some of the low-voltage circuit breakers and how they work and their associated performance curves. In the fourth chapter, the simulation is explained and described, and its results are given.