Method for reducing the maximum inrush current of a compressor system comprising multiple asynchronous electrical motors and a compressor system for implementing this method
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United States of America
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Apr 13, 2021
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app pub date -
Apr 6, 2017
filing date -
Apr 6, 2017
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Abstract
This method for controlling asynchronous electrical motors of a compressor system, comprises: —receiving an order to start a first asynchronous electrical motor and a second asynchronous electrical motor of a compressor system; —unloading said first and second motors, by operating respectively a first load control unit of the first motor and a second load control unit of the second motor, in order to reduce the mechanical load associated to said motors; —starting the first motor and, only once the first motor is running at nominal speed, starting the second motor, —loading both the first and second electrical motor only once the second motor has started and is running at nominal speed, by operating the first load control unit and the second load control unit, in order to increase the mechanical load associated to said motors.
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