Transactions section: Large electric-arc furnaces — Performance and power supply

ELECTRIC arc furnaces are desirable loads for power systems, and are becoming more and more used for producing high-grade alloy steels, as well as for other types of steel. The authors believe that the data in this article will be of value and assistance to others in the solution of similar problems. It is necessary in connecting large electric arc furnaces onto power systems that it be done in such a manner that neither the voltage changes, caused by the violent and rapid load swings of these furnaces, will interfere with other load of the furnace customer nor be permitted to reflect back into the system in such a manner as to interfere with service to adjacent customers. Also precautions must be taken so that such widely fluctuating loads will neither interfere with the operations of any of the equipment on the power system nor interfere with any interconnection with adjacent power companies. Further, precautions must be taken so that voltage regulation caused by large short-time loads will not be too great.