What Are Variable Frequency Drives Used For?
If you're thinking about acquiring a variable frequency drive (VFD) then you're likely already aware of its importance to both the automation and industrial markets, although what you may not know is that a VFD allows for control of torque and rotational speed on electric motors by modifying the basic parameters such as frequency supplied to an electrical motor which will produce savings in energy and cost. So what makes the VFD so important to today's industry? What would be the usage applications for a VFD? Read on for answers.
Benefits of using variable frequency drives
Variable frequency drives are not just a tool for controlling motor speed, but also provide many additional advantages as outlined below:
1.Lower energy use: By operating a motor at less than the maximum speed when it is not at maximum load, variable frequency drives greatly reduce energy use in total.
2.Increase equipment longevity: Starting and stopping smoothly, along with lower mechanical stress, increases the life of the equipment.
3.Accurate process control: Variable frequency drives enable exact motor speed adjustment to guarantee that equipment will function at the exact speed required for the application.
4.Reduce maintenance: Because a drive with a smooth operation will produce less mechanical stress on parts subject to wear, this in turn reduces the amount of repairs while increasing time between replacements.
Where are variable frequency drives used?
Standard usage of variable frequency drives includes: use in regulating motor speed; improving equipment energy efficiency; and optimizing equipment performance in a variety of industries including HVAC systems, industrial manufacturing, water pumping systems, elevators, and several other types of electric motor operation.
Can i use variable frequency drives on all types of motors?
No, variable frequency drives are used mainly with three phases AC induction motors. It is important to verify that the motor you are using is matched with the rated power of variable frequency drive, as using the wrong rating can cause the motor to fail or reduce its usable life.
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