Abstract
On Stacker Reclaimer PT. Bukit Asam Tbk Tarahan port unit has an abnormal condition, where when the Stacker Reclaimer is operating Reclaimer mode or taking coal from the stockpile with a maximum load of 3000 tons per hour, the Bucket Wheel motor has a trip with indications of protection switch off, so for now Stacker Reclaimer can only take coal with a capacity below 3000 tons per hour. The method used by collecting data from the name plate of the motor and the results of measurements directly in the form of load, current, rotation and voltage to the Bucket Wheel motor.Based on the results of research and calculations carried out, it was found that the maximum current value on the bucket wheel motor was 199 Amperes, so it can be interpreted that the performance of the motor did not decrease because it was still in accordance with the standard name plate of the motor manufacturer
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