The possibility of powering separators of conventional designs with alternating current has been directly confirmed experimentally. When the separator operates on alternating current, the concentrate is significantly cleaner than when the separator operates on direct current. Therefore, for a given concentrate purity, an AC separator can provide significantly greater productivity. The extraction of magnetic mineral into concentrate is the same when the separator is powered with both direct and alternating current. The required current when powering the separator with alternating current is slightly greater than the current when powering the separator with direct current. Therefore, the increase in energy losses in the separator winding when switching to alternating current power is insignificant.
