Aligning an electric motor coupled to a large air blower required multiple measurements.

All electric motors (motors) have a housing that contains the working components of the motor.

With highly reliable electrical systems, protective relays may be called upon to operate very infrequently.

In the past year, the rate of acceleration in the cost of raw materials (including steel, iron ore, copper and aluminum) has reached unprecedented levels in the pump and rotating equipment industries.

The industrial motor world has a new specification available for defining the requirements of general purpose, severe duty motors in the 250- to 3,000-hp range.

Advanced motor protective relays provide superior protection for motors and pumps. pump system optimization

Last month, we ended with a discussion of the relationship between peak and RMS (or effective) voltage.

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 applications.

It has been said that Washington, D.C., is the home of the largest invertebrate population in the U.S.

After spending money on a powerful new pump and the motor to run it, the next big decision is how to connect the two in a way that maximizes their efficiencies and protects them from normal wear and tear.

Proper alignment of the pump shaft with the driver can reduce vibration and significantly improve reliability.

A flexible coupling's primary functions are connecting two shafts, transmitting power from a driver shaft to a driven shaft and accommodating the misalignment between them.

Couplings are often forgotten until a project is nearing its end.

A large wastewater processing plant experienced continual problems with its influent raw wastewater pumps for several years.

The industrial motor world has a new specification available for defining the requirements of general purpose, severe duty motors in the 250- to 3,000-hp range.

Bigger is better — or at least it used to be

For the first time, the United States Department of Energy (DOE) adopted energy conservation standards for small electric motors in February 2010.

The SI system is the modern day version of the metric system, and the U.S. gets a lot of grief for not embracing its inherent transportability across international boundaries.

Mechanical resonance occurs when an external source amplifies the vibration level of a mass or structure at its natural frequency.

Owing partly to tradition, the shafts of electric motors are often larger than those of the equipment they drive.

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