Ottomar Einenkel

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—This paper presents a very new drive system used to transport ore from the mine down to the concentrator plant in the copper mine " Los Pelambres ". Eight 2500-kW motors are driven by three-level inverters with gate-turn-off thyristors (GTOs). A three-level active front end is used at the input side of each inverter. A GTO chopper is used to provide(More)
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