Návrh měřícího trasformátoru proudu vn.

Abstract

The objective of the Diploma Thesis is calculation of measuring and protective current transformer. The calculated transformer consists of two magnetic circuits. The Thesis is divided into several parts. The first part deals with basic terms description. The following part works with basic quantities and permissible current transformer tolerances. The theoretical calculation part describes the current transformer calculation methodology. Further objective of the Thesis is to compare current transformers with modern current sensors, e.g. Hall probe and Rogowski coil. Comercially produced current sensors will be used for the purpose of the comparison.