Motors

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.
In June, 2007, a reader asked Electrical Apparatus magazine, "How long should motor bearings last?" The answer will astound you.
An argument in favor of IEEE-841's provision for motor bearing protection.
Electric motors have had a huge impact on the pump industry.
The pump industry is the largest purchaser of electric motors in the United States.
The pump industry is the largest purchaser of electric motors in the United States.
Why integrating vibration monitors with process controls provides fast response to pump faults, adds predictability and avoids unexpected shutdowns.
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.
Learn about proper equipment balance in order to cut down on vibration which effects reliability, performance and uses unnecessary money. pump maintenance.
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 belt drive option is available.
Today's lean maintenance staff needs pump and motor protective devices that diagnose and predict problems before they become acute.
Mechanical resonance occurs when an external source amplifies the vibration level of a mass or structure at its natural frequency.
All electric motors (motors) have a housing that contains the working components of the motor.
When maintaining motors, proactive strategies are required.
Learn how to avoid misinterpretations.
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 cumulative effect of breaking the downward spiral and lifting the global economy out of its crisis.
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 cumulative effect of breaking the downward spiral and lifting the global economy out of its crisis.
Significant energy and money savings are realized when using variable speed motors controlled with drives.
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 voltage alternating current (AC) motors dominate the industry, generating 92.1 percent of market revenues for 2009. That number is expected to increase to 95.9 percent by 2016, with a Combined Annual Growth Rate (CAGR) of 7.6 percent between 2006 and 2016. Low voltage direct current (DC) motors, on the other hand, are expected to have a negative 3.4 percent CAGR between those years.
Even when a redundant pumping system is in place, it can be advisable to monitor the condition of the operating units in critical applications where maintaining production depends on motor-pump reliability.

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