Motors and Drives

Motors, Drives July 1, 2004

BACnet Bags Big Backers

Proponents of the BACnet open communications standard received some good news recently, as two major international HVAC and controls manufacturers announced they are committing to the protocol as their primary vehicle of interoperability. ABB's Low-Voltage Drives division announced BACnet is now available as a loadable option in the company's all-new drive for HVAC, ACH550 DriveIT Low Voltage A...

By Staff
Motors, Drives June 1, 2004

The Cold Facts — A Case of Overheating Motors

Motor failures can be a mystery, especially when their causes originate outside a facility's walls. That's the conundrum that faced a small motor shop recently, when a spate of failures sparked an investigation of the seemingly random breakdowns. The machinists called for assistance from the motor-rewind shop that had been repairing the failed models—a not-unusual resource for those facin...

By Staff
Motors, Drives April 1, 2004

Fans Blowin’ Up a Storm

Fans and blowers are the workhorses of building mechanical systems. But while they may not exactly be the most glamorous equipment, surprisingly, this equipment is often the focus of continuing research and development. Presented here are not only some recent innovations in fan and blower products, but also some useful new specifying tools for fans and blowers.

By Staff
Motors, Drives February 1, 2004

AHR Expo Sets West Coast Attendance Records

New attendance records were set at the 2004 AHR Expo in Anaheim, at least for a West Coast show. With more than 22,000 registered visitors—not including exhibitor personnel—the '04 event set a new record, while the number of exhibiting companies (1,652), and net sq. ft. of exhibit space (324,590) also topped previous West Coast records.

By Staff
Motors, Drives May 1, 2003

Corvette Summer

Sometime in the early or mid-'70s I was sitting in my dentist's office looking at MotorTrend or some such magazine, reading an article that showed some concepts of what the future Corvette might look like. At the time, the current model was the Stingray, which I thought was a very cool car. Looking at those prototype renderings, however, I thought, "What dope came up with this idea?" Several ye...

By Jim Crockett, Editor-in-Chief
Motors, Drives November 1, 2001

What’s On CCTV?

Even the best designed and installed camera system is nothing more than a security tactic or tool that should help answer the question: What is the owner interested in protecting?For example, when trying to protect the exterior building perimeter, parking lots, utility connections and other outdoor items, exterior cameras must be used.

By Jeffrey A. Lupinacci, RCDD, LAN Specialist, Senior Security Designer, Brinjac Engineering, Harrisburg, Pa.
Motors, Drives August 15, 2001

“Motor Decisions Matter” Campaign Launched

A coalition of motor manufacturers, utilities, trade associations and government agencies have teamed up to promote energy conservation for motors.

By Staff
Motors, Drives August 1, 2001

Do the math: efficient motors alone don’t add up

It's a distinct probability that sometime in your career you've read an article on energy conservation and increasing motor efficiency. The whole point of these essays is to provide instruction or influence readers to get into the mindset to conserve resources and decrease pollution—noble causes.

By Ken Lovorn, P.E., President, Lovorn Engineers, Pittsburgh
Motors, Drives July 12, 2001

Research Shows Copper Rotor Efficiencies for Motors

Motors using new die-cast copper rotors can reduce energy loss by 15 to 23 percent, compared with the current industry-standard motors using aluminum rotors, according to the Copper Development Association (CDA), New York.

By Staff
Motors, Drives January 1, 2001

Modifying Engine Exhaust for Savings

Electric and steam-turbine drives for chillers are common practice. However, the use of gas-engine-driven chillers, particularly in a high-rise city building, is unique.When it came to a chiller retrofit for the Time & Life building in Manhattan, this selection required an analysis of the gas-engine exhaust, noise and vibration potential and the cooling tower and riser capacity.

By Consulting Specifying Engineer Staff