Improvements in ferro-alloy electric furnaces of high power input

The paper deals with the subject of efficiency of power input in ferro-alloy furnaces and discusses the electrical factors to be considered in the design of the leads for achieving such efficiency. It also describes a new system of regulation, whereby the furnace temperature is kept constant by keeping the energy input constant by means of true watt regulation. Also several factors in design and construction, are discussed, which help to keep the load-factor of the operation as close to 100 per cent as possible.