Motors

Latest Motors Articles

In the industrial sector, cost is often the driving force when evaluating capital projects.

Intelligent motor control centers (MCCs) provide the data to support safe, reliable and more efficient operations, making information available for process monitoring, advanced diagnostics and pre

I hope that my last column (Pumps & Systems, September 2014) provided a clea

Many industries use variable frequency drives (VFDs) with induction motors. Introduced in the 1960s, VFD technology has advanced considerably during the past 50 years.

Q. Are the pump motors special for VFD operation or can any motor be used with a VFD?

Located in one of the fastest growing regions in the U.S., the Benton/Washington Regional Public Water Authority (BWRPWA) broke ground in 1996 for a water treatment facility serving northwest Arka

Inexperienced vibration analysts encounter a common problem: They are often expected to learn too much, too fast.

Power factor (PF) is an important component of an alternating current (AC) circuit, but understanding its actual effect can be difficult. Why is PF mysterious to many of us?

In my July 2014 column, I demonstrated that three-phase voltage variation can significantly affect several alternating curre

Motor manufacturers routinely answer questions about the differences between submersible and immersible motors and the applications best served by each design.

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Columns

For those of you old enough to remember Lawrence Welk, you’ll notice that the title of this brief column is the final quote from his show’s closing song. I am still a loyal fan of his reruns today.

Last year, “Reduce Thrust and Extend Bearing Life” (Pumps & Systems, December 2013) discussed the benefits and some potential pitfalls of adjusting the axial clearance of American National Standards Ins

A reciprocating power pump, as depicted in Figure 1, is a displacement machine. It has characteristics that are different than a centrifugal pump.

Blogs

Abundant oil supplies from U.S. shale producers may have upset global markets in recent months, but one resource may present even more of a challenge to the international community in 2015—clean water. Demand has clearly outstripped supply in some of the world’s most arid regions.

My previous two columns have described assessing a system that does not use controls. In the first part (Pumps & Systems, October 2014) the assessment process was detailed. Last month, I covered performing the system calculations (Pumps & Systems, November 2014).

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