Results 161 to 170 of about 912,294 (242)
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1997
The need for energy conservation in North America has accelerated the requirement for increased levels of electric motor efficiency. Various studies as the A.D. Little Report, sponsored by the Federal Energy Administration, indicate that approximately two thirds of all generated A.C. power is used to drive electric motors.
Joseph A. KlineSr.
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The need for energy conservation in North America has accelerated the requirement for increased levels of electric motor efficiency. Various studies as the A.D. Little Report, sponsored by the Federal Energy Administration, indicate that approximately two thirds of all generated A.C. power is used to drive electric motors.
Joseph A. KlineSr.
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A comparison of two energy efficient motors
IEEE Transactions on Energy Conversion, 1998Limited testing provides evidence that a particular energy efficient motor (EEM) appears to have a unique susceptibility to reduced negative sequence impedance. The effect of the reduction in negative sequence impedance is to allow a higher negative sequence current flow under conditions of voltage unbalance or negative sequence harmonic distortion in ...
J.D. Kneck, D.A. Casada, P.J. Otaduy
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Economic Barriers to the Application of Energy Efficient Motors in Industry
IEEE Latin America Transactions, 2020In this paper we present a technical, economic and financial feasibility analysis of the replacement a standard-efficiency induction motor (IE1) by a Premium-efficiency induction motor (IE3) in an industrial application.
P. Donolo +4 more
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An assessment of energy efficient motors application by scenarios evaluation
, 2020The choice of the most appropriate public policies to foster energy efficiency measures often is a difficult task due to the large number of intervening variables and agents and, also, high levels of uncertainties in estimating the corresponding energy ...
E. Bortoni +4 more
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Energy Efficiency in Electric Motors
2021Electric motors are electrical machines that convert electrical energy into mechanical energy to perform useful work. In general, electric motors have three main parts: a rotor, a stator, and a commutator. These three parts use the attractive and repulsive forces of electromagnetism, causing the motor to spin continually so long as it receives a steady
Durmuş Kaya +2 more
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Energy Efficient Motor Technologies
1997Electric motors consume over half of all electricity used in developed countries and typically 60–80% of the electricity which is used in the industrial sector. The use of energy-efficient motor technologies can produce substantial electricity savings which are also normally associated with process improvements and longer life of the motor drive ...
Anibal T. de Almeida, Paula Fonseca
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ATZautotechnology, 2005
Despite several comments at the last Energy Efficient Motor Sport conference, energy efficiency could provide a new stimulus for exciting motor racing.
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Despite several comments at the last Energy Efficient Motor Sport conference, energy efficiency could provide a new stimulus for exciting motor racing.
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IEEE Transactions on Industrial Informatics, 2019
A significant portion (ca. 40%) of the world's total energy is utilized in buildings. Cooling of large buildings worldwide is done by centrifugal chiller systems, where the compressors, pumps, and fans are driven by ac motors.
F. Oliveira, A. Ukil
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A significant portion (ca. 40%) of the world's total energy is utilized in buildings. Cooling of large buildings worldwide is done by centrifugal chiller systems, where the compressors, pumps, and fans are driven by ac motors.
F. Oliveira, A. Ukil
semanticscholar +1 more source
Energy-efficient steels for motor laminations
Journal of Materials Engineering and Performance, 1992Motors use over 60% of all electricity generated, and their losses exceed 200 × 109 kW.hr/year. A significant part of this loss results from eddy currents and hysteretic processes in the motor laminations. These so- called core losses cost motor users about $3 × 109/year.
F. E. Werner, R. I. Jaffee
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