You can divide the world of electronic motor drives, which control the speed, torque, direction, and resulting horsepower of a motor, into two categories: ac and dc. An ac drive controls ac induction ...

Adjustable speed drives (ASDs) or variable speed drives (VSDs), also called variable frequency drives (VFDs), typically control a motor's velocity or torque output. Most adjustable frequency drives ...

Early VFDs affected output voltage control through controlled rectification and the DC bus was variable, but the VFD output waveform was somewhat crude. Since the early 1990s, digital control of ...

If you're installing a variable-frequency drive (VFD) or uninterruptible power supply (UPS) — or if you already have this equipment in place — you should be monitoring certain power quality parameters ...

The North American Variable Frequency Drives Market is set for significant growth, fueled by demand for energy efficiency and sustainability. IoT integration for smart manufacturing and predictive ...

Utility power plant generators are usually designed for a power factor (PF) of .8 to .9. If demand-side PF is lower than the designed PF, the generator current will rise above the equipment's rated ...

I've been watching a discussion on a LinkedIn group that is addressing some writers' concerns about variable speed drives (VSD). The discussion is titled “Are variable speed drives harmful to motor?

The North Central Railways (NCR) has installed Variable Voltage Variable Frequency (VVVF) devices in escalators and lifts located in different stations under its jurisdiction in order to reduce energy ...