Experimental study of the control of operating modes of a plate feeder based on the frequency-controlled electric drive

An experimental study of the control operating modes plate feeder based on a frequency-controlled electric drive in mining industry has been carried out. The graphs measurements electrical parameters supplied from frequency converter plastic feeder, instantaneous values harmonic composition voltage and current up to 50 harmonics, as well changes harmonics over period 30 minutes were obtained. Measurement oscillograms each phase mode moment turning off motor feeder. issues starting drives are considered. It determined that start-up with linear law for function time technological most acceptable condition modes.