Variable Frequency Drive Motors - There are a wide range of motors ranging from 0.75kW to 500kW due to their cost and ability to perform under extreme conditions.  The heart of an electric motor is the stator and the rotor.  A magnetic field is generated when a current is applied and the north/south field rotates through the stationary stator as the rotor spins to catch up to the rotating field. The spinning of the rotor provides the torque necessary to drive a load.  Drives and motors are applied in constant torque applications, constant power applications and variable torque applications.  The benefits of variable frequency drives include increased drive efficiency, reduced volume and weight, lower price, reduced audible noise level, improved power factor, reduced harmonic distortion to supply, improved reliability, larger voltage and current rating and high switching speeds and lower losses. 

 
Variable Frequency Drive Motor Web Sites:
Variable Frequency Drives - An overview on how to application and development of variable frequency drives. Also get a complete list of motor controls and drives. 

Variable Frequency Drive Co (VFDs) - The Variable frequency drive co is an educational site that provides customers and visitors with quality information about products and services, variable frequency drives, ac variable frequency drives and variable frequency drive motors.

Variable Frequency Drive Motors - Variable frequency drive motors control mixers, pumps, conveyors, machine tools, mixers, and many other applications once considered strictly DC applications, or constant speed.  Find out more about the knowledge and technology of variable frequency drive motors.

VFD - This handy site covers a wide variety of VFDs from Yaskawa variable frequency drives to Allen Bradley VFDs..

VFD Motor - Read about VFD motors ranging from complete unitized packages with a VFD and motor combined  to a special heavy duty motor with a high service factor specifically for use with a VFD.

VFD Drives - Special motor control VFD drives including such brand names as ABB VFDs, Relcon VFDs and Fincore are all found on this site.

VFD Control - Read about how VFDs can be used for specialty motor control from fan control to pump control.

Motor Control - All these variable frequency drives are motor controls.  Other motor controllers listed her include soft start drives.

Variable Speed Drive - The variable frequency drive is used to vary the speed of a motor and thus are also known as variable speed drives.  

Variable Frequency Drive Related Web Sites:
The US Phase Converter Standards Organization Review of VFD "Phase Converters" - VFDs, also known as variable frequency drives can be used to control motor only type of loads. They cannot be used for any type of non-motor 3 phase load. Find out more about VFD Phase Converters from the US Phase Converter Standards Organization website.

Related Categories:
VFDs as Phase Converters - There are three ways that you can convert 1P to 3P. You can use a static converter, rotary converter or a VFD. Find out why choosing a VFDs as a phase converter has its disadvantages.

Electric Motors - Electric motors convert electrical energy into kinetic energy. Electric motors have rotating coils of wire which are operated by the magnetic force exerted by a magnetic field on an electric current.

Rotary Frequency Converters
Read about the different options for converting 50 Hz, 60 Hz and 400 Hz power to a different frequency static phase converters, CNC phase converters, and details about "build your own phase converter plans".
 

Parent Category:
Variable Frequency Drives (VFDs) -
A special type of adjustable-speed drive that regulates the rotational speed of an AC electric motor by governing how often electrical power is delivered to the motor.