Návrh nastavení elektrických ochran v rozvodně Krnov 110/22 kV

Abstract

The aim of this thesis is to propose a configuration of electrical protection on 110/22 kV Krnov substation. This thesis is divided into five chapters.The first chapter consists of general description of protection. The second chapter presents a theory describing short-circuit and short-circuit current calculations. The third chapter then contains a brief description of Krnov substation and Siemens SIPROTEC 5 protection. The fourth chapter mentions powerline parameters calculations needed for final calculations of initial symmetrical short-circuit current. The last chapter consists of configuration of electrical protection on Krnov substation, particularly configuration of reclosing, which at this substation has not been used.