The term “testing” covers a range of processes. Parts supplied for motor manufacturing are tested as they are manufactured and when they arrive at the plant.
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Bearing currents occur in specific motor and drive installations and can lead to motor fatigue and failure.
In my June column on pump and motor testing, I said that three-phase voltage variation and unbalance can have a significant effect on motor insulation life.
In last month’s column (Pumps & Systems, May 2014), the drawdown analysis
Even though most Winter Olympic venues are held in locations that are likely to have white winters, there is no guarantee that Mother Nature will deliver.
Previous articles in this series explained how oversized piping systems can have higher operating and maintenance costs.
Part One of this series in the March 2014 issue of Pumps & Systems
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In my June column on pump and motor testing, I said that three-phase voltage variation and unbalance can have a significant effect on motor insulation life. Voltage variation is defined as the difference between the motor nameplate voltage and the incoming source voltage.
One of the supposed advantages of centrifugal pumps when compared to positive displacement pumps is their ability to operate across a wide flow range.
SKF hosted their annual Technical Press Day on June 9, 2014, at Penske Headquarters in Mooresville, North Carolina. This was my first event to cover for Pumps & Systems, so I had a lot to learn! Here are a just a few of the things I picked up at press day.