Abstract
One of the most energy-intensive departments of a metallurgical enterprise is the oxygen-converter plant. Consumers of electricity in such workshops have high requirements for the quality of voltage. At the same time, the electric receivers of such workshops can significantly reduce the quality of electricity. The paper estimates the voltage level in the current network of a 10 kV oxygen-converter plant. A decrease in voltage below the permissible level under the operating conditions of electric receivers was revealed. The reasons for voltage reduction in the conditions of a complex network configuration were determined. A mathematical model was developed to study the power quality indicators of the shop under consideration taking into account the characteristics of the supply network. The influence of the level of supply voltage, the regulating effect of load, power load and configuration of the supply network on the voltage level was investigated. A set of measures to improve the quality of voltage was developed. Compensating devices were recommended for installation taking into account the power quality indicators. A technical and economic comparison of options for installing compensating devices was made taking into account power and electricity losses in the supply and distribution network of the shop. The total level of losses in the power consumption of the oxygen-converter plant was estimated. It was shown to decrease when implementing the recommended measures.
Keywords
The oxygen-converter plant, voltage quality, power and energy loss, power consumption of the electric power, compensating device.
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