Adjustable speed drives
Adjustable Speed Drives
Adjustable Speed Drives (pronounced: ad-just-able speed drives) are a type of motor control device used to control the speed and torque of electric motors.
Etymology
The term "Adjustable Speed Drives" is derived from its function. "Adjustable" refers to the ability to change or modify, "Speed" refers to the rate at which something moves or operates, and "Drives" refers to the mechanism that transmits power to the motor.
Definition
Adjustable Speed Drives are devices or systems that control the rotational speed of an electric motor by controlling the frequency of the electrical power supplied to the motor. A microprocessor is typically used to control the drive's functions and provide diagnostic and protective features.
Types
There are several types of Adjustable Speed Drives, including:
- Variable Frequency Drives (VFDs)
- Direct Current Drives (DC Drives)
- Magnetic Drives
- Mechanical Variators
Applications
Adjustable Speed Drives are used in a variety of applications, including:
- Pump systems
- Fan systems
- Conveyor systems
- Machine tool equipment
Related Terms
- Motor Control: The process of controlling the performance of an electric motor.
- Electric Motor: A device that converts electrical energy into mechanical energy.
- Variable Frequency Drive: A type of adjustable speed drive that controls the speed of an electric motor by controlling the frequency of the electrical power supplied to it.
- Direct Current Drive: A type of adjustable speed drive that controls the speed of a DC motor by varying the voltage supplied to it.
- Magnetic Drive: A type of adjustable speed drive that uses magnetic fields to control the speed of a motor.
- Mechanical Variator: A type of adjustable speed drive that uses mechanical means to vary the speed of a motor.
External links
- Medical encyclopedia article on Adjustable speed drives
- Wikipedia's article - Adjustable speed drives
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