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The function of a frequency drive is to control the speed of an electric motor.

In general, a frequency drive converts the ac supply voltage into a dc voltage and then converts this dc voltage into a ac voltage of which the amplitude (voltage) and the frequency can be varied. Giving you the possibility to fully control the speed of the motor.

Applications: (big) ventilators, pumps, cranes, elevators and virtually all other applications where electric motors are used.

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Q: What is the function of variable frequency drive?
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What is the main function of Variable frequency drive?

Main function of Variable Frequency Drive is to be able to run the AC Induction motors at different speeds (by changing the frequency). The speed is a function of frequency. N - Speed. F - Frequency P - Pole N= ( 120 x F)/ P


What is the difference between Variable Speed Drive and Variable Frequency Drive?

A variable frequency drive (VFD) refers to AC drives only and a variable speed drive (VSD) refers to either AC Drives or DC Drives. VFD's vary the speed of an AC motor by varying the frequency to the motor. VSD's referring to DC motors vary the speed by varying the voltage to the motor.


How do you decide whether the variable frequency drive is compatible with my DC motor or not?

Variable frequency Drive is not compatible with a DC Motor. VFD can be used only with AC motors, where frequency plays a key role in defining the speed of the motor.


What is meant by VFD?

A variable-frequency drive (VFD) is a system for controlling the speed of a rotational or linear alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.[1][2][3] A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives.


What is the function of vfd panel?

VFD- variable frequency drive, is a power electronics device which control the motor speed. It is very famous in Industries for energy saving perpose.


Can anyone tell me how to build single phase variable frequency drive?

Single phase variable frequency drives are commercially available. Building it by an individual is complicated.


How do variable speed motors work?

A variable sped drive is sometimes also known as a variable frequency drive. These drives are used in electro-mechanical drive systems to control AC motor speed and torque.


What are the types of motor controls?

motor can be control by using variable frequency drive


Speed control of a.c motor?

Use a variable Frequency Drive. Sold by ABB, Allen-Bradley, and many others.


How do you solve for variable fx in statistics?

It depends on whether fx denotes frequency times variable value or the probability generating function for the variable x.


What is the energy savings of an electric motor when reducing the speed with a variable frequency drive?

definitly it give more efficient than variable stator voltage.............but in variable frequency ...............the frequency is not only variable....it is E/F control.because to maintain constant flux......... USUALLY THIS SPEED CONTROL IS ODOPTING IN INDUSTRIES......


Electronic component used to control speed of a motor?

In industrial, there is a device called variable frequency drive (allso frequency inverter, ac drive) to control the motor speed by adjusting output frequency.