D. Bajic, University of Montenegro, Faculty of Mechanical Engineering, G. Vladimirovich Kuzmenko, E.O. Paton Electric Welding Institute, National Academy of Sciences Ukraine, I. Samardžić, J.J.Strossmayer university of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Croatia The paper presents up-to-date achievements in application of a new method of arc welding of various rail profi l...

The electric current is omnipresent and indispensable in our life. But there are always threatening dangers connected with it. One of them is the electric short circuit and we have to protect people and facilities from its effects. This protection is often provided by power circuit breakers or motor protective circuit breakers. These devices are able to detect the short circuit, limit the curre...

This work provides a critical assessment of electric effects on the microstructure evolution at heat-affected zone in arc welding. Electric are interactions between electromagnetic fields and materials’ microstructures. They differ from effect Joule heating by providing an alternative contribution to nucleation, grain growth, recrystallisation tempering. The influence size, defects, anisotropic...

For the nonthermal radio emission of the Galactic Center Arc in situ electron acceleration is imperative. The observed radio spectrum can be modeled by a transport equation for the relativistic electrons which includes particle acceleration by electric fields, momentum diffusion via scattering by magnetohydrodynamical turbulence and energy losses by synchrotron radiation. The accelerating elect...

an electric arc furnace (eaf) is known as nonlinear and time variant load that causes power quality (pq) problems such as, current, voltage and current harmonics, voltage flicker, frequency changes in power system. one of the most important problems to study the eaf behavior is the choice of a suitable model for this load. hence, in this paper, a probabilistic three-phase model is proposed base...