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What is Ac Current Contactors

 Alternating Current Contactors. Contactors typically have multiple contacts, and those contacts are usually (but not always) normally-open, so that power to the load is shut off when the coil is de-energized. Perhaps the most common industrial use for contactors is the control of electric motors.
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What Is an Ac Drive?

 An AC drive is a device that is used to control the speed of an electrical motor. The speed is controlled by changing the frequency of the electrical supply to the motor. The three-phase voltage in the national electrical grid connected to a motor creates a rotating magnetic field in it.
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What Is An alternating current (AC) geared motors

 In an alternating current (AC) geared motors, the AC drive current creates a magnetic field which turns a shaft connected to a series of gears. The gears are designed with a gear ratio that greatly increases the motor torque while reducing the motor's output speed, therefore drawing a lower current to function.
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