Variable-frequency drives (vfd’s) go by a number of different names, such as variable-speed drives, adjustable-speed drives, and adjustable-frequency controllers. It doesn’t really matter what you ...

The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

Engineers know there is a problem with premature failure of motors controlled with A-S drives. Now there is a new magnet wire insulation that may solve the problem without any change in motor design.

MEAN WELL's compact, fanless variable frequency drives (VFDs) are engineered for use with energy-efficient three-phase motors and designed to help industrial customers improve energy efficiency ...

The only exception is that if one VFD is used to operate multiple motors, the output wiring for all of the motors can be in the same conduit. Use the drive on a grounded system. Never use a ...

Fig. 1. An ideal sinuosoid and PWM waveform figure. By the 1980s, AC motor drive technology became reliable and inexpensive enough to compete with traditional DC motor control. These ...

Medium-voltage VFDs (Variable Frequency Drives) are commonly applied to electric motor-driven rotating machinery such as compressors, pumps, extruders and others. VFDs form a critical link between the ...

A Variable Frequency Drive (VFD) regulates the speed of a 3-phase AC electric motor by controlling the frequency and voltage of the power it delivers to the motor. These devices, also known as ...

When a motor drive goes down, production often grinds to a halt. How do you find and resolve the problem quickly? When that variable frequency drive (VFD) goes down, you're under pressure to get it ...

One of the most popular and useful methods of speed control for induction motors is by using a VFD (Variable Frequency Drive). This device allows the speed and torque of the motor to be finely ...