More in Motors / Drives

With the rising cost of energy, the use of variable-frequency drives (VFDs), also known as inverters, is growing. By optimizing electrical flow to an alternating-current (AC) motor, a VFD can provide substantial energy savings. Within the field of flow control, the potential for increased efficiency with VFDs is especially dramatic....More

Variable-frequency-drive- (VFD-) generated harmonics largely is a perceived, rather than real, issue. In 27 years of applying VFDs in HVAC and other applications, this author has experienced only a handful of actual harmonics problems, with all but one stemming from high levels of voltage distortion, not the current distortion that has been getting so much attention lately....More

EISA-requirements white paper A white paper from Baldor describes the Energy Independence and Security Act of 2007 (EISA), which will go into effect on...More

Most facilities need to get maximum life and efficiency out of their HVAC systems. HVAC operational costs no longer are assumed even that budget item...More

Held in Orlando from March 24 to 26, ABB Automation & Power World 2009 exceeded event attendance expectations and attracted a record number of participants for any ABB event, totaling more than 3,300 attendees....More

According to the U.S. Department of Energy (DOE), electric-motor-driven equipment uses 25 percent of all of the electricity consumed in the United States....More

Bruce T. Halle Library on the campus of Eastern Michigan University (EMU) in Ypsilanti, Mich., has a number of air-handling supply and return fans of varying size and belt configuration. EMU was unable to shut off those fans reliably at night to save energy because of the possibility of the belts being thrown off of their pulleys upon startup. Indeed, belt slip necessitated continual retensioning....More

Motor For mid-range fractional-horsepower applications, the ECM 142R motor is an energy-saving solution for split-system outdoor units, package units,...More

At Veterans Memorial Park in South Windsor, Conn., keeping clean more than 1 million gal. of water for three outdoor swimming pools a 755,000-gal. main...More

With the development of variable-frequency converter drives during the 1990s, totally enclosed fan-cooled (TEFC) alternating-current (AC) induction motors...More

Combining Dodge Quantis ILH (inline helical) and RHB (right-angle helical bevel) C-face gearmotors with BaldorReliance Super-E premium-efficient motors,...More

When electric motors are installed in a wet or damp area, their lives almost always are shortened from what they would be in a dry environment. By heeding...More