3 Phase Electric Arc Furnace

In many european countries electric stoves are usually designed for a three phase feed.

3 phase electric arc furnace.

The metter is a sealed 1 t 1 1 st three phase 800 kv a electric arc melting furnace with lo 2 cm 4 in diam eter graphite electrodes water cooled roof and sidewalls and four water cooled feed tubes. A 3 phase electric arc furnace has the following data. A 3 000 degree fahrenheit electric arc furnace prepares to receive a charge of scrap metal for conversion into steel saturday at severstal columbus photo by carmen k. The furnace roof is closed when power is supplied to the system.

Individual heating units are often connected between phase and neutral to allow for connection to a single phase circuit if three phase is not available. One example of a three phase load is the electric arc furnace used in steelmaking and in refining of ores. Latent heat of steel 37 25 kj kg specific heat of steel 0 444 kj kg c melting point of steel 1370 c initial temperature. The three phase electrical input serves as the main energy input in the electric arc furnace.

This model was presented in. Current drawn 9000 a transformer resistance referred to the secondary 0 003 s2 transformer reactance referred to the secondary 0 0052 overall efficiency 65 the charge steel has the following data. The electrical energy input needs to be controlled with the aim of achieving the lowest possible production cost. In are presented models of electric arc from which the authors used in their simulations the model based on formulas that relate arc radius length the arc voltage and the current.

Each phase of the three phase electrical input supplies power to one of the three electrodes that is mounted above the furnace bath through the roof.