The best option for preventing bearing currents depends on the source of the problem.
Protecting these two components can lead to longer equipment life.
Protecting these two components can lead to longer equipment life.

Impact of Amended Motor Efficiency Rules on the Pump Industry

Sponsored by Baldor Electric Company

Motor systems that are designed as entire packages are more reliable and affordable.
Enhanced diagnostics provide critical data for reliable, efficient operations.
Internal Clearance & Its Effect on Bearing Fatigue Life
End users must include bearing clearance as an integral part of designing or building a pump.
To ensure the best system setup, end users must first consider operating conditions, then conduct thorough cost-benefit calculations.
Long-Term Motor Reliability
A variable frequency drive’s effect on system efficiency and motor life
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...
Measure Twice, Cut Once!
Aligning an electric motor coupled to a large air blower required multiple measurements.Around 18 years ago, a client needed assistance aligning an electric motor (more than 1,000 horsepower) coupled...
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...

Motor Automation Can Help Solve Industry Labor Shortage

Process control software reduces costs while increasing process accuracy and protection.

Process control software reduces costs while increasing process accuracy and protection.
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.
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...
Motors, Drives Improve High-Rise Condo Efficiency
Significant energy and money savings are realized when using variable speed motors controlled with drives.The Villa Magna, a 92-unit luxury condominium in Highland Beach, Fla., sits between the...
Green Motors Save GreenbacksPrepare for the new motor manufacturing changes with the Energy Independence and Security Act of 2007.The U.S. has not enacted a wide-reaching, industrial energy efficiency...
The Benton/Washington Regional Public Water Authority saved on energy costs and gave dependable service to its customers after replacement.
Current state and growth opportunities The low voltage motors market is highly consolidated, with the top five participants accounting for more than 75 percent of the market revenues as of 2009. Low...
Operation and Maintenance of Vertical Motors
 Construction features are key to vertical motor application and maintenance.The definite-purpose application of vertical motors dictates a number of construction features that set them apart...
Optimization Solutions
Improvements in performance and energy reduction can be achieved with smart drives and system optimization.Intelligent pumping is simply defined by ARC Advisory Group as the combination of a pump and...
Optimized Energy-To-Thrust Ratio and Mechanical Reliability: The Keys to Submersible Mixer Cost Efficiency
Energy is the largest ongoing cost of mixer operation, so it is vital to carefully consider the energy-to-thrust ratio (sometimes called the “water-to-wire” ratio) for each and every mixer...
Previous articles in this series explained how oversized piping systems can have higher operating and maintenance costs. Higher maintenance costs can adversely affect the reliability and uptime of...