Návrh a nastavení elektrických ochran pro rozvodnu Šternberk 22 kV

Abstract

The aim of this thesis is to proposal and settings of electrical protection of distributing substation 22 kV Šternberk. The introductory part of this work briefly describes solve of the problem. In the theoretical part, the focus is primarily protections on theoretical analysis and analysis calculation of short circuit conditions in the electricity system. The following sections provide a brief description of transformers, substation 110 kV and 22 kV, and current state of substation protection Šternberk. Protections proposal for substation Šternberk are described in the fourth part. The main part of thesis deals with the calculation of short circuit conditions at each of the leads from the substation Šternberk. The next section is given a draft setting of individual protections. Evaluation of the proposed solution electrical protection is the last part of this work.