Graftech International Holdings Inc.

Dave A Lehr

Ronald Eric Gerhan

Nicolas Lugo

Fernando Martinez Garcia

A system and method for monitoring the operating parameters of an electric arc furnace having a primary electrical circuit comprising a primary current transformer. The method includes monitoring the furnace's primary current transformer; collecting data therefrom; transmitting the collected data to a server having an operatively connected monitor; and displaying the collected data on the monitor in substantially real-time. The server also collects information about the performance of the furnace from a programmable logic computer and information entered manually by an operator at a furnace monitoring viewer system, which may also be displayed in substantially real-time on the monitor.

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Franklin, TN, United States of America

Dave A Lehr