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Dive into the research topics where Alan D. Crapo is active.

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Featured researches published by Alan D. Crapo.


IEEE Transactions on Industry Applications | 2000

Light flicker test in the United States

Renyan W. Fei; Jerry D. Lloyd; Alan D. Crapo; Sharon Dixon

Home appliances, like washers, dryers, refrigerators, etc., can cause voltage fluctuations and light flicker. A standardized flicker test has been established in Europe (IEC 1000-3-3). However, the European test is designed for 230-V 50-Hz power and needs to be modified for a 115-V 60-Hz supply. In this paper, the reference impedance and the limits of flicker tests for 115 V/60 Hz systems are proposed. A high-performance power analysis system, the Xitron 2803AH power analyzer, was used to study the voltage fluctuations and flicker caused by some washing machines. The analysis and test results provided in this paper can serve as a proposal for establishing a US light flicker testing standard for 115 V/60 Hz.


Archive | 2001

Electric power steering system including a permanent magnet motor

Alan D. Crapo; Todd A. Walls; Richard E. Hartsfield


Archive | 2001

Reduced cogging torque permanent magnet electric machine with rotor having offset sections

Alan D. Crapo; Todd A. Walls; Richard E. Hartsfield; Charles P. Ketterer; Ken Luca


Archive | 1991

FLUX TRAPPED SUPERCONDUCTOR MOTOR AND METHOD THEREFOR

Jerry D. Lloyd; Alan D. Crapo


Archive | 2001

Magnetization of permanent magnet rotors with offset rotor sections

Alan D. Crapo; Todd A. Walls; Richard E. Hartsfield; Charles P. Ketterer; Ken Luca


Archive | 1994

Brushless permanent magnet condenser motor for refrigeration

Gerald N. Baker; Alan D. Crapo


Archive | 2002

Interior permanent magnet motor for use in washing machines

Gary E. Horst; Alan D. Crapo


Archive | 2003

Brushless permanent magnet motor with high power density, low cogging and low vibration

Alan D. Crapo; Gary E. Horst


Archive | 2002

Reduced impedance interior permanent magnet machine

Gary E. Horst; Alan D. Crapo


Archive | 2001

Permanent magnet electric machine having reduced cogging torque

Todd A. Walls; Alan D. Crapo

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