Variable Speed Pumping With Variable Success – Potential Pitfalls When Using Variable Frequency Drives

Variable speed pumping using a variable frequency drive (VFD) can be a powerful tool in a pump system. However, incorrect application can do more harm than good, reducing the overall life of the pump and increasing operational costs. In this article, we will review some of the important considerations for a well-designed variable speed system in order to get the most out of your pump, but first let’s look at why you may or may not want to use a VFD.