Please fill out the required fields *
December 12, 2016

We are pleased to announce that Power Equipment Sales has been named as the exclusive Sales Representative Firm for Harmonics Limited Inc. in New England.

Read More
September 19, 2016

Harmonics Limited featured in High-Profile Magazine

Read More

Glossary Of Terms


A device to control the speed and efficiency of AC electric motors. The device operates by taking AC from the distribution system and rectifying it to power on a DC bus. An inverter with the capability to produce variable output frequencies then re-converts the DC to AC that powers the motor. Since the speed of an AC motor is proportional to the frequency of the AC supply, the speed can be adjusted over a wide range. (see: Adjustable Speed Drive; AC Power; DC Power; Rectifier; Inverter; SCRi)

« Return to Glossary Index