Proudový chránič v soustavě s neharmonickými proudy

Abstract

This bachelor thesis is focused on the problem of application of current protectors in systems with non-harmonic currents. In the laboratory conditions it was created test circuit to verify the proper functions. Measurements were carried out in the IT network. The aim of this work was analyzing of false residual current protectors in those systems. The work is divided into three parts. The first part contains fundamental information about the history, construction and function of current protectors and characteristics of the network. The second part describes the scheme and the involvement of the components. In the last part are summarized and evaluated the measurement results, including graphs. The result contains a notification of the risk in protectors application.