Abstract

The article deals with the assessment of the impact of higher harmonics on the operation of variable-frequency electric drive systems used in processing units at mining enterprises. Beyond that, energy efficiency and the operation experience of variable-frequency electric drive use at mining enterprises were studied. The advantages and drawbacks of the employment of variable-frequency electric drive systems were found. They include energy saving and reducing maintenance costs for processing units on the one hand, as well as losses due to their incorrect selection and electromagnetic compatibility distortion on the other hand.

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