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Feature Article:
Motor Efficiency and Fault Zone Analysis
Noah P. Bethel
Noah P. Bethel,
Vice President - Product Development
The ever present emphasis on technological efficiency is just one of several forces behind the pressure on companies to “go green” despite a trying economy. The ultimate criterion that determines whether a motor is truly green is energy efficiency. Technology, long the key to efficiency, can help resolve this issue through detailed computerized analysis of the motor, the power environment in which it operates, and even its reliability.
Introduction
Does motor efficiency relate to “going green”? While the term “going green” originally applied to the release of greenhouse gases, it has been broadened to include waste and inefficiency associated with factory operations in general and motors specifically. The green movement as it relates to motors is the result of industry becoming environmentally conscious with a wary eye on reducing its carbon footprint. Given the sometimes frenzied movement in the effort to go green, maintenance management may overlook the fact that maintaining reliability can pay dividends towards efficiency while improving the bottom line. The ideal technology would provide tools to help companies make the right choice between repairing or replacing motors that are pushing the environmentally friendly envelope of efficiency, and be used to maintain, and even improve, motor reliability.
A
thorough infrared inspection of an electrical
transformer can point out symptoms of loose connections
as well as other possible problems.
When performing
an infrared inspection of a liquid-filled transformer,
be certain to include not only the primary and
secondary connections but also the following items
as well: