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

Volume

3

fYear

1995

fDate

8-12 Oct 1995

Firstpage

2745

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE

Conference_Location

Orlando, FL

ISSN

0197-2618

Print_ISBN

0-7803-3008-0

Type

conf

DOI

10.1109/IAS.1995.530653

Filename

530653