Efficient Electric Motor Systems Handbook

Guidelines for developing a predictive and preventive motor maintenance program are also included.

Motors use more than half of all electricity. This book outlines an approach for increasing motor and motor system efficiency through high-efficiency motors, optimized controls, improved component sizing and repair, better transmission hardware, and more comprehensive monitoring and maintenance. In addition to explaining technical opportunities in language understandable to non-engineers, the book reviews what is known about the existing motor stock and its use, chronicles experience to date with drive power programs and policies, and offers recommendations for future efforts. Full application of the measures described can cut U.S. electricity demand by up to 20 percent, save motor users and utilities billions of dollars, reduce pollutant emissions, and enhance productivity. The book was written by an interdisciplinary team of engineers, energy analysts, and program planners who collectively have over 50 years of experience in the energy efficiency field.

The majority of electrical energy consumed in most industrial facilities is used to run electric motors. By incorporating energy efficient electric motors during new construction or replacement can increase productivity while achieving substantial energy and dollar savings. The efficiency gains are obtained through the use of refined design, better materials, and improved construction.This 4 - hour online course provides an overview of the characteristics, economics, and benefits of standard versus high-efficiency motors. It covers the economic and operational factors to be considered when motor purchase decisions are being made.This course is fully based on the US Department of Energy and the Bonneville Power Administration's Report Number: DOE/BPA-34623-3 titled "Energy-Efficient Electric Motor Selection Handbook". This course is aimed at electrical engineers, energy auditors, plant managers, plant engineers, and others interested in energy management or preventative maintenance programs.Learning ObjectiveAt the conclusion of this course, the reader will understand:* When to buy energy efficient motors; * Energy efficient motor performance and price; * Determining and comparing motor efficiencies;* How much one can save on energy efficient motor; * Obtaining motor efficiency data;* Energy efficient motor selection guidelines;* Speed, Design Voltage, Enclosure, Part-load Efficiency, and Power Factor;* Motor operation under abnormal conditions;* Motor selection considerations;* Additional benefits of energy efficient motors.

This detailed reference provides guidelines for the selection and utilization of electric motors for improved reliability, performance, energy-efficiency, and life-cycle cost. Completely revised and expanded, the book reflects the recent state of the field, as well as recent developments in control electronics, the economics of energy-efficient motors and systems, and advanced power electronic drivers. It includes five new chapters covering key topics such as the fundamentals of power electronics applicable to electric motor drives, adjustable speed drives and their applications, advanced switched reluctance motor drives, and permanent magnet and brushless DC motor drives.

Presenting current issues in electric motor design, installation, application, and performance, this second edition serves as the most authoritative and reliable guide to electric motor utilization and assessment in the commercial and industrial sectors. Covering topics ranging from motor energy and efficiency to computer-aided design and equipment selection, this reference assists professionals in all aspects of electric motor maintenance, repair, and optimization. It has been expanded by more than 40 percent to explore the most influential technologies in the field including electronic controls, superconducting generators, recent analytical tools, new computing capabilities, and special purpose motors.

Revised and updated throughout, the second edition of Energy-Efficient Electric Motors provides guidelines for picking and using electric motors on an energy conservation and life-cycle cost basis - emphasizing both single- and three-phase motors in the 1- to 200-hp range that offer maximum opportunities for energy savings.;Maintaining the features of the first edition, this concise resource: explains current improvements in electric motor capabilities and recently adopted NEMA energy-efficient motor standards; contains a new section about the power factor with nonlinear loads; covers the performance of polyphase induction motors supplied by adjustable frequency power supplies for several types of loads, presents information on numerous kinds of power semiconductors used in variable-frequency power supply systems; provides expanded coverage comparing various types of adjustable speed drives when applied to constant torque and variable torque loads; and contains a new summary checklist criteria for selecting induction motors for adjustable frequency drive systems.;Generously illustrated with nearly 200 figures and tables, the second edition of Energy-Efficient Electric Motors is timely reading for electrical, electronics, mechanical, consulting, specifying, and plant engineers; plant and purchasing managers; original equipment, heating, ventilating, and air-conditioning manufacturers; and continuing-education courses in these disciplines.