Silové účinky elektrického proudu

Abstract

This work deals with the force effects of electric current. In the first part, the work focuses on the theory of the electromagnetic field, where the work deals with the description of electrodynamic forces, from their origin in the just mentioned electromagnetic field. Subsequently, the basic relationships and formulas are described here, which are based on the law of conservation of energy and subsequent derivation to electrical quantities. Furthermore, the work focuses on the force effects acting on the conductors in different positions. The last part is focused on the design of a contact device, where we take into account only the force effects of electric current. Nominal values are not essential for this proposal, but rather short-circuit values, which are more focused, because short-circuit effects are much more dangerous.