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Accurate Power Monitoring for Electric Arc Furnaces.

PB94171931

Publication Date	1994
Personal Author	Hartman, A. D.; Ochs, T. L.
Page Count	14
Abstract	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.
Keywords	Electric arc furnaces Steel making Energy conservation Measuring instruments Integrated circuits Chips(Electronics)
Source Agency	Bureau of Mines
NTIS Subject Category	71J - Iron & Iron Alloys 41 - Manufacturing Technology 94 - Industrial & Mechanical Engineering
Corporate Authors	Bureau of Mines, Albany, OR. Albany Research Center.
Supplemental Notes	See also PB87-113924 and PB93-136430.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199417

Accurate Power Monitoring for Electric Arc Furnaces.

Accurate Power Monitoring for Electric Arc Furnaces.
PB94171931

Publication Date	1994
Personal Author	Hartman, A. D.; Ochs, T. L.
Page Count	14
Abstract	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.
Keywords	Electric arc furnaces Steel making Energy conservation Measuring instruments Integrated circuits Chips(Electronics)
Source Agency	Bureau of Mines
NTIS Subject Category	71J - Iron & Iron Alloys 41 - Manufacturing Technology 94 - Industrial & Mechanical Engineering
Corporate Authors	Bureau of Mines, Albany, OR. Albany Research Center.
Supplemental Notes	See also PB87-113924 and PB93-136430.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199417