Motors & Drives
applications & resources MOTORS & DRIVES
Contactors Motor-control products, TeSys D 40A, 50A, and 65A contactors feature Everlink termination technology, which provides a direct connection to...
Cooling-Tower Motors Save Energy, Reduce Maintenance for University
At Emory University in Atlanta, motors on two cooling towers that had been in service for approximately 20 years were becoming a maintenance headache....
Harmonic Distortion: Reality vs. Perception
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. ...
The Benefits of VFDs on Cooling Towers
Used on large industrial projects, such as nuclear power plants, and countless HVAC applications ranging from 15 to 700,000 gpm, cooling towers are everywhere....
Motors & Drives
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...
Testing Methods for HVAC Motors
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...
ABB relocates North American corporate headquarters
ABB, a power and automation technology company, announced that the company’s North American corporate headquarters will be moved to Cary, N.C., from Norwalk, Conn. ...
ABB Conference Breaks Attendance Records
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....
New Equipment & Resources for HPAC Engineering - 0209
Ethernet adapters For ABB's low-voltage alternating-current drive line, din-rail-mounted SREA-01 Ethernet adapters provide Web-browser-based remote access...
Drives Maker Marks Milestone
The 1 millionth ABB ACS/ACH550 general-purpose drive rolled off the production line Dec. 2, making ACS/ACH550 the first ABB drive family to surpass the...
Understanding the Efficiency of Motors
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....
NEW EQUIPMENT & RESOURCES
Motor For mid-range fractional-horsepower applications, the ECM 142R motor is an energy-saving solution for split-system outdoor units, package units,...
Calculating Benefits of VFD Performance
The performance of variable-frequency drives (VFDs) can be compared with that of other methods of volume control quickly and simply. All that you need...
Improving HVAC With PID and VFDs
Uncontrollable changes both inside and outside of a building can impact efforts to maintain a desired temperature. Changes in occupancy, lighting and...
Maintenance-Free Fan-Drive Belts Saving University $30,000 in Energy
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. ...
VFDs Protect Pool Complex's Motors, Save $7,000 in Energy Costs a Year
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...
Extending Motor Life With Optimal Flux
With the development of variable-frequency converter drives during the 1990s, totally enclosed fan-cooled (TEFC) alternating-current (AC) induction motors...
Heat-Resistant Exhaust-Fan Drive Belt Enjoying Long Life for Chicago Eatery
With multiple locations in the Chicago metropolitan area, Portillo's serves up world-famous Chicago-style hot dogs. The restaurants are a mix of remodeled...
C-face energy-efficient gearmotors
Combining Dodge Quantis ILH (inline helical) and RHB (right-angle helical bevel) C-face gearmotors with BaldorReliance Super-E premium-efficient motors,...
10 Millionth Drive for Yaskawa
Yaskawa Electric America Inc., the Waukegan, Ill.-based manufacturer of alternating-current drives, servomotors, motion controllers, and robotics, recently...
Curbing Harmonics in HVAC Systems
A byproduct of modern electronics, harmonic distortion occurs when large numbers of personal computers, uninterruptible power supplies, variable-frequency...
Operating Motors in Wet Environments
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...
Motor Drives Enable Ramp Up/Down of City's Critical Lift-Station Pumps
With 450 miles of sanitary-sewer collection lines and 33 lift stations feeding into a central wastewater-treatment plant, the City of Lawrence, Kan.,...
Drive for Simplicity: Trends in AC Drives
Traditionally, the primary use of drives has been in applications such as powering pumps, fans, and conveyors. While they will continue to be used in...
NEW EQUIPMENT AND RESOURCES
Belts HVAC Power V-Belts extend belt life for exhaust-blower drives with higher temperature resistance and less flex fatigue. Optibelt Corp.Circle 48...
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