The Ecodesign Directive is the legislative framework that sets requirements on all energy related products in the domestic, commercial and industrial sectors throughout Europe. The full title is the Ecodesign Directive for Energy Related Products (ErP) 2009/125/EC.…
Motor data on the motor nameplate or from the motor manufacturer’s datasheet are given for a specific range of motors, or a specific design, but rarely do those values refer to the individual motor. Due to variations in the…
To handle growing water demands, the City of Cottonwood in the arid central highlands of Arizona devised a strategic water management plan that included creating a modern municipal water system with monitoring, control and pumping technology. The…
Part One : Introduction This is the first post is a series about the advantages of using variable frequency drives (VFDs) in refrigeration and cold storage applications. Using VFDs to control compressors, evaporator and condensor fans, and pumps…
70 to 80% of all motors in this world are not equipped with a variable speed drive. Of these, 60 to 70% are part of an application with a need for variable speed or variable torque. That…
When developing booster pump controllers, the focus is often on the control of the pumps, which is of course the main function of the system. Service and maintenance are not always taken into consideration. As a result…
