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MICROPROCESSOR GRINDING CONTROL SYSTEMS:
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TECHNICAL EQUIPMENT:
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AC AND DC AUTOMATED ELECTRICAL DRIVERS
The transistor converters for frequency regulation of the velocity of AC 3-phase asynchronous motors are designed for regulable material feeding of the ball mills through changing the revolutions of belt feeder.
The DC converters are designed for precise velocity control of motors with electromagnetic excitation. The units are directly fed from the mains (without mains transformer). They insure two velocity control ranges: a constant torque range up to the rated velocity and a constant output power range above the rated velocity.
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