Title :
Efficiency and reliability assessments of retrofitted high-efficiency motors
Author :
Hsu, John S. ; Otaduy, Pedro J. ; Kueck, John D.
Author_Institution :
Oak Ridge Nat. Lab., TN, USA
Abstract :
The majority of electric motor applications are pumps, fans, blowers, and certain compressors that follow the load torque pattern described in this paper. It has long been known that simply replacing the old motor with a high-efficiency motor might not produce the expected efficiency gain. This paper suggests calculations for the effective efficiency and temperature rise of high-efficiency motors. The reliability in terms of temperature rise, downsizing, power factor, harmonics, mechanical structure, etc., are discussed
Keywords :
electric motors; energy conservation; maintenance engineering; power consumption; reliability; thermal analysis; applications; blowers; downsizing; efficiency assessment; energy efficiency; fans; harmonics; high-efficiency motors; load torque pattern; mechanical structure; power factor; pumps; reliability assessment; retrofitting; temperature rise; Compressors; Electric motors; Fans; Laboratories; Motor drives; Power system reliability; Reactive power; Surges; Temperature; Torque;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530653
