Accurate power monitoring for electric arc furnaces.
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9502, 1994 Jan; :1-5
Standard metering of electric arc furnaces usually uses root mean square (RMS) or true root mean square (TRMS) measurements for determining power. In order to obtain better signals for both monitoring and control, a study of instantaneous, RMS, and TRMS power monitoring devices was conducted. From the study it was concluded that precision integrated circuits should be used to obtain instantaneous power with a bandwidth of at least 25 kHz. The information from these devices is more representative than that of standard meters and can be used in predictive control.
Energy-conservation; Measuring-instruments; Integrated-circuits; Chips-electronics; Electric-arc-furnaces; Steel-making
Report of Investigations
NTIS Accession No.
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9502