What Is A Variable Speed Drive?

Halcyon Drives have spent 25 years working with variable speed drives on a daily basis by selling, commissioning and repairing them. Often for process control and now more frequently for energy saving. Sometimes we forget that people are still unaware of what exactly a variable speed drives is, why they are a benefit and how they save energy. ABB have produced this video explaining how they work and we think they have done a great job explaining it.