MULTIPHASE SIX-ELECTRODE ORE-SMELTING ELECTRIC FURNACE

摘要

The invention relates to electrical engineering. The purpose of the invention is to reduce the reactive power and current asymmetry of the furnace. The furnace is powered from two three-phase sources 1 and 2 by means of a six-phase uncoupled short CS network. 3. Electrodes E) 4–9 are arranged in two rows of three each in a rectangular furnace bath 17. Current from source 1 is fed to E 4 -6, and from source 2 - to e 7-9. Since the voltages of sources 1 and 2 are shifted by radians, the currents in the opposite e are in opposite directions. In order to eliminate the asymmetry of the CS 3, its current leads to the E located at different distances from the sources are laid at different distances from the axis of symmetry and at different heights, due to which the length of the CS 3 is aligned. 4 Il. ABOUT)