Electric Motors Essay

4059 Words17 Pages
E. GULER Master of Energy Systems, Griffith University emre.guler@griffith.edu.au [] Electric Motor Energy Efficiency Comparison Abstract— In this research paper, international efficiency levels (IE) and minimum energy-efficiency performance standards (MEPS) are used to clarify the international standards of energy efficiency. In addition to this, the benefits of energy efficient systems such as economic and environmental are discussed to illustrate necessity of energy efficiency. Moreover, the comparison between IE4-class Line Start-up Permanent Magnet Synchronous Motor (LSPMSM) and IE0-class Squirrel Cage Induction Motor (SCIM) from in-field replacement and the comparison between IE4-class LSPMSM and IE3-class IM from laboratory design are shown respectively. These findings from in-field replacement and laboratory design represent the importance of energy efficient motor usage in industries to achieve less material and energy consumption to get same amount of work or more done. Index Terms—International Efficiency Levels, Induction Motor, Line Start-up Permanent Magnet Motor, Motor Comparison, Efficiency Comparison, Power Factor, Material Consumption INTRODUCTIONTHE Electrical motor, invented in 1888 by Nicola Tesla, has had a long history of development. It has been broadly utilized in many different industries and residential situations to transfer electric energy into mechanical energy. The consumption of electrical energy by electric motors accounted for between 30% and 40% of generated electrical energy all over the world , while European countries are represented by 70%.[1] This makes electric motors to be as efficient as possible , in order to maintain world energy saving policies. It is the electric motors broad use that makes them quite enticing for the implementing of efficiency improvements. Although, there are a large variety of
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