Abstract
The article presents the results of the study of non-sinusoidal voltage in the power supply system of non-ferrous metallurgy enterprises. The non-sinus voltage coefficients are calculated for the operation of valve inverters and welding machines. The range analysis of the noah caste of higher harmonic components by voltage was carried out and it was established that the values of the correlation coefficients between the non-sinusoidal coefficients of voltage and the fraction of noah and pointer castes of electricity consumers for the production of hard alloys are equal to: 0.56 and 0.37, which makes it possible to limit the range of priority tasks for calculating the required filter-compensating devices. It is necessary to conduct further studies of higher harmonics in the system of power supply of industrial enterprises and the development of methods for calculating and optimal distributing filter-compensating devices in enterprises.
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