YD132S-4kw Speed Double-speed Motor
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YD132S-4/2-4.5kw/5.5kw speed control according to the formula of two-speed motor and n=60F/p motor with magnetic pole number synchronous speed is inversely proportional to magnetic pole number increases 1 time, synchronous speed n dropped to half the original speed, motor rated speed n will fall by approximately half, so change the magnetic pole number can reach the goal of changing the motor speed. This speed is a class, not smooth speed control, and applies only to the squirrel-cage motors.
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