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Split-Phase Air Conditioner Motor
Latest company news about Split-Phase Air Conditioner Motor

This is the simplest design where the RUN winding and START winding are connected in parallel and 90° electrically apart. It is usually used in small pumps, fans and blowers where the capacity is below 1 horsepower. It has a low starting torque but high starting current. Since the torque is low, the ability to start the motor is only practical for low load condition.

The RUN winding is make from bigger diameter wire and shorter turn for lower resistance and high inductance properties. The START winding is make from smaller diameter wire for higher resistance and low inductance properties.

latest company news about Split-Phase Air Conditioner Motor  0

When power is connected to the motor, both the windings will be energized with the current in the RUN winding lags the current in the START winding by about 30° electrically. This out-of-phase effect on the stator produces a starting torque and causes the rotor to start rotating.

Typically the speed of the motor is 1800 rpm or 3600 rpm when running without any load. When the load is connected, the speed can go down to 1725 rpm and 3450 rpm respectively.

These days, electronic relay is also being widely used to disconnect the START winding.

Pub Time : 2011-07-22 09:18:35 >> News list
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