Návrh a nastavení elektrických ochran pro transformovnu TR 110/35 kV Pardubice-Sever

Abstract

The aim of this thesis is the design and settings of electrical protections for the R35 kV substation Pardubice-North. The theoretical part of the work is to focus on the electricity system protection. The introductory part of the thesis describes the theoretical analysis of electrical protections, the basic requirements for protections, basic links, and the distribution of protections. It also contains an analysis of the calculation of short-circuit currents and a description of the electrical protections designed to protect the substation. The method of short-circuit ratios calculation is necessary for the setting of electrical protections designed to protect the substation in the practical part. The work evaluates the current condition of the Pardubice-North substation and the reconstruction of the R 110/35kV substation. The conclusion of the theoretical part describes the complex equipment REF630, which is used for the protection, control and measurement of individual outlets designed for the protection of the R35 kV substation Pardubice-North. The practical part of the work includes calculations of short-circuit ratios on individual outlets from the R35 kV substation. The result of the thesis is the design and setting of electrical protections on individual outlets of the 35 kV substation.