Optimalizace sítě VN 6kV na válcovně předvalků a hrubých profilů.

Abstract

This dissertation is about optimization of power supply network 6kV in rolling mill of profiles in Třinecké železárny, a.s. The goal of the thesis is analyse actual state and make optimization of position transformers 6kV/nn and cables in the hall using multi-criteria analysis. Nowdays, rolling mill power supply network is oversized and transformers has an unnecessary power looses. So it's necessary to determine, witch transformers are possible to shut down or switch to cold reserve mode or change for another transformer with optimal parameters. In the end, we determine cost benefits of this optimization.