The KF is Copeland’s variable-speed scroll compressor for the 1.5- to 5-ton North American residential market, designed for ...

A variable frequency driven (VFD) is a type of motor that controls the levels of frequency and voltage that alter the speed of an electric motor. The drive alters torque and motor speed and can be ...

Ana Mircevska shares what variable frequency drives are and how they can help optimize energy efficiency in this article. After reading the article, test your knowledge on VFDs with this quiz.

Compressed air is a vital utility to most commercial and industrial operations. It runs essential tools and machinery, provides power to material-handling systems, and clean air to processes. Yet ...

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 ...

However, if the system requires varied airflow, then using a variable-speed drive can save a lot of energy. The power requirement varies as the cube of the speed, so if airflow requirements are only ...