Due to high unit capacities, electric arc furnaces are among the receivers that significantly affect power system from which they supplied. Arc generate a number of disturbances grid, including fast-changing voltage fluctuations causing phenomenon flickering light, asymmetry, and deformation curve. The main issues discussed in article problems related distortion current waveforms, resulting ope...

Recycling is extremely important for steelmaking. In developed countries, about 60% of steel is manufactured from scrap. The scrap contains 0.5% of zinc in average, and this percentage steadily increases. During the steelmaking process both in basic oxygen furnaces (BOF) and in electric arc furnaces (EAF), all volatile zinc is released and forms airborne particles of dust. About 20 kg of dust i...

Due to the rapid growth of non-linear loads, such as power electronic control equipments and Electric arc furnace (EAF) power quality problems such as harmonics and voltage flicker are introduced in the power system. It occurs because of the time-varying and nonlinear behaviour of the Load. Arc furnaces are used in industries for induction heating and welding. Hence an Electric arc furnace mode...

This study deals with a new approach to tackle the challenges encountered in filters-based reactive power calculation techniques utilized control system of static VAr compensators. In this approach, step and time-varying responses are improved by combination differential filter-based methods. Then, optimum values main parameters low-pass band-stop filters determined considering three criteria: ...

The steel industry is on its way towards more environmentally friendly steelmaking. To achieve the ambitious goals of significant CO2 emissions reduction, new processes, practices, sources on-line data, and digitalization together with automation will be required. address these issues, this paper discusses optical emission spectroscopy (OES) as an data acquisition method for industrial electric...

A transient mathematical model was developed for the description of fluid flow, heat transfer and electromagnetic phenomena involved in the production of ferronickel in electric arc furnaces. The key operating variables considered were the thermal and electrical conductivity of the slag and the shape, immersion depth and applied electric potential of the electrodes. It was established that the ...