Variable frequency drives have an Achilles Heel. Even though the VFD itself is protected against damaging electrical conditions, the drive's power cables can fail when subjected to heat or voltage ...

When an application requires changes in motor speeds to meet its objectives, a variable frequency drive (VFD) is often the first thing that comes to mind. This is for good reason—VFDs are typically ...

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 ...

The variable frequency drive (VFD) cable business has become a very large market for cable manufactures in the last 20 years. In the past, standard AC motors had the complexity of a squirrel cage ...

Parker Hannifin has sponsored this post. Electric motors are the dominant form of motive power on Earth for a reason: they’re efficient, scalable and versatile. That versatility has driven the ...

The prime and immediately tangible target for saving energy using variable frequency drives (VFDs) is old mechanical systems, typically using centrifugal pumps and fans, that vary the flow of either ...

According to Danfoss’s own technical documentation on variable frequency drive applications, applying variable speed control to fans and pumps typically achieves energy savings of 40%, a figure ...

OEMs and hobbyists benefit from technology’s trickle-down effect. Figure 1. Many industrial applications and small machines with a motor and limited I/O requirements can benefit from using AC VFDs with ...