Pumps & Systems, June 2008Following the development of variable frequency converter drives during the 1990s, totally enclosed fan-cooled (TEFC) AC induction motors became viable options for...
Following the development of variable frequency converter drives during the 1990s, totally enclosed fan-cooled (TEFC) AC induction motors became viable options for replacing DC motors in pumping...
An argument in favor of IEEE-841's provision for motor bearing protection.In June, 2007, a reader asked Electrical Apparatus magazine, "How long should motor bearings last?" The answer will astound...
Pumps & Systems, June 2008 An argument in favor of IEEE-841's provision for motor bearing protection. In June, 2007, a reader asked Electrical Apparatus magazine, "How long should motor bearings...
Use a mathematical model that estimates vibration at the top bearing of a motor used on a vertical, wet-pit, column type pump.
Guidelines for reduced vibration and information on how a pump’s foundation and operating speed affect the vibration response
Discharges flowing through the bearings put motors at risk.
Ease of installation, improved algorithms, enhanced displays, onboard communication and other technology make VFDs an ideal and cost-effective solution.
These are the details of the snowmaking machines used during the Winter Olympics in Sochi, Russia.
How Motors Have Changed the Pump Industry
Read more about The History of Pumps here. Electric motors have had a huge impact on the pump industry. While it is not certain how centrifugal pumps were powered in the early days, it is...
Pumps & Systems, June 2009The pump industry is the largest purchaser of electric motors in the United States. According to the U.S. Department of Energy (DOE), electric motors consume more 50...
Pumps and Systems, June 2009The pump industry is the largest purchaser of electric motors in the United States. According to the U.S. Department of Energy (DOE), electric motors consume more 50...
Pumps & Systems, June 2007 Why integrating vibration monitors with process controls provides fast response to pump faults, adds predictability and avoids unexpected shutdowns.  ...
The best option for preventing bearing currents depends on the source of the problem.
Enhanced diagnostics provide critical data for reliable, efficient operations.
Intelligent Pump Cleaning Cuts Maintenance Time
The installation of an AC drive with an advanced software tool has dramatically cut call-outs for blockages at an Irish county council pumping station. Pump control software has been installed to...
Pumps & Systems, June 2008Vibration is one of the most damaging forces in the industrial environment. Vibration not only reduces the life of equipment, but can also adversely affect the quality of...
COOKSVILLE, Ontario (April 1, 2014) – Stephen Anderson has joined Lafert NA as a new outside salesman with a focus on the oil and gas industry. Stephen brings with him over 30 years of experience in...
A number of choices are available  when connecting pumps, fans and other rotating equipment to an electric motor. There are numerous mechanical and fluid coupling designs and, in some cases, a...
Last year, a Pumps & Systems reader asked about matching variable frequency drives (VFDs) and motors. “I have a spare pump in my warehouse that requires 15 horsepower (HP) at best efficiency...
Microprocessor-Based Pump/Motor Protection Relays
Today's lean maintenance staff needs pump and motor protective devices that diagnose and predict problems before they become acute.Pumps are indispensable in mining, petroleum recovery (wellhead...
Pumps & Systems, November 2008Mechanical resonance occurs when an external source amplifies the vibration level of a mass or structure at its natural frequency. For a rotating mass like a motor or...
Pumps and Systems, February 2007All electric motors (motors) have a housing that contains the working components of the motor. In the U.S., the enclosure describes this housing. The enclosure should...
All electric motors (motors) have a housing that contains the working components of the motor. In the U.S., the enclosure describes this housing. The enclosure should meet specific environmental...
When maintaining motors, proactive strategies are required.Whether the subject is motors, a maintenance department or an entire organization, typical maintenance methods are categorized as reactive,...
Motor Nameplate Letter Code Designations
Learn how to avoid misinterpretations.
Reduced downtime is an added benefit of sustainable procedures.
Siemens talks with Pumps & Systems about their motors & drives technology, efficiency, and energy conservation.
The global economic downturn has resulted in an unprecedented attempt by world governments to help stimulate their individual economies, with the hope that these combined efforts will have a...
Pumps and Systems, June 2009 The global economic downturn has resulted in an unprecedented attempt by world governments to help stimulate their individual economies, with the hope that these combined...