Using VFDs in Refrigeration and Cold Storage Applications (1)
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…
There Is Still A Lot Of Energy To Save
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…
Aligning Design and Test Closer Together Can Spur Innovation
Think you only interact with software on your computer? Consider this: a vast majority of the machines and devices you interact with every day – from your car to your coffee maker – are software based. Countless…
VFDs: The Path to Prolonged Life
One of the main factors for obtaining long reliable service from any piece of equipment is maintenance. Any type of electrical or mechanical device is subject to wear and tear. This can be further aggravated by undesirable…
Pump Interlock in Booster Pump Controller
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…
Heat Dissipation From The Variable Speed Drive
A concern often ignored in the specification of variable speed drives is the heat dissipation. The panel builder does care, because he needs to dimension the panel cooling, but what about the energy bill for the heat…
