Harmonic measurements and analysis for power factor correction
- Cooper Power Systems, Franksville, WI (United States)
- North Star Steel Texas, Inc., Beaumont, TX (United States)
Maximizing electric power transfer directly effects the productivity of an electric arc furnace operation. Arc furnaces and rolling mill loads operate at power factors that result in penalty charges and lower bus voltages. In addition, the nonlinear characteristics of the furnace arcs and rolling mill drives generate significant harmonic currents that flow through the plant and utility power system. These harmonic currents cause system voltage distortions, power loss in the system, and can interact with power factor correction capacitor banks leading to equipment failures. This paper presents the analytical technique used to correct power factor in a modern steel manufacturing facility. The study included field measurements, harmonic analysis, and filter design work to reduce the amount of harmonic distortion in the plant. The modeling of arc furnaces and rolling mills for a harmonic analysis study is also discussed. The solution recommended in this paper to increase power factor and reduce harmonics can be applied to other steel manufacturing facilities to improve power quality and therefore plant productivity.
- OSTI ID:
- 7001610
- Report Number(s):
- CONF-9309280--
- Journal Information:
- Iron and Steel Engineer; (United States), Journal Name: Iron and Steel Engineer; (United States) Vol. 70:7; ISSN IRSEA5; ISSN 0021-1559
- Country of Publication:
- United States
- Language:
- English
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240200 -- Power System Networks
Transmission & Distribution-- (1990-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ARC FURNACES
CORRECTIONS
ELECTRIC FILTERS
ELECTRIC FURNACES
ELECTRIC POWER
ELECTRICAL TRANSIENTS
ELECTRONIC EQUIPMENT
EQUIPMENT
FILTERS
FURNACES
INDUSTRY
MACHINE TOOLS
METAL INDUSTRY
MILLING MACHINES
POWER
POWER FACTOR
POWER SUPPLIES
QUALITY ASSURANCE
TOOLS
TRANSIENTS
VOLTAGE DROP