Confusion often surrounds the proper sizing of variable frequency drives (VFDs), and sometimes, knowing when and how to choose one may be difficult. Actually understanding what a VFD does might make this decision easier and the requirements…
As the cost of energy and water and wastewater services continues to rise, operators are looking for ways to reduce the costs of these basic, yet crucial utilities. Proposed energy-efficiency standards from the U.S. Department of Energy (DOE) and…
Does it really make sense to increase the efficiency of your pump and motor without addressing the downstream components? What is the value (payback) of a premium efficiency motor VS a standard efficient motor? Is it really…
Load sharing is a concept normally used for referring to a group of motors operating a common load. This approach can be found in long conveyors, extruders, winches and other applications. The whole group of motors can…
We all know frequency converters are used to control the speed of electrical motors. But are you aware just how many different types of motors are used in, for example, the marine industry alone? In 2013, the…
When selecting a frequency converter, the load conditions of the application should always be taken into account first. A fundamental distinction is made between quadratic and constant load characteristics, which are the most common in practice. When a frequency converter…
