LABORATORY UNIT TO TEST THE PERFORMANCE OF ELECTRIC MOTOR | ||
| Misr Journal of Agricultural Engineering | ||
| Article 7, Volume 32, Issue 1, January 2015, Pages 121-130 PDF (822.44 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2015.98689 | ||
| Author | ||
| E. M. E. Sehsah | ||
| Associate Prof. in Agric. Eng. Dept., Fac, of Agriculture, Kafrelsheikh Univ.33516, Egypt | ||
| Abstract | ||
| Electric motors are widely used in the agricultural industry, yet many researcher and students in Egypt need to understand their basic operating characteristics. Designed laboratory activities can provide an accepted method for students under Egyptian conditions to observe and actively study motor operation. However, commercially available electric motor test are prohibitively expensive for many agricultural systems of technology at the University level. The aim of the current study was to develop the construction and evaluationof an inexpensive unit test for electric motor that allows students to actively study the power output, efficiency, and power factor of small, fractional horsepower AC and DC electric motors. Prony brake laboratory unit test may be easy to measure and determine the power efficiency and power factor for AC motors. The power efficiency was 91% for N3-70 AC motor comparing with 87.3% , 83.7 % and 70.3 % for DC motor KAG, DC motor MNB and AC motor turbo respectively. | ||
| Keywords | ||
| power factor; electric motor; performance; unit test | ||
| References | ||
|
Freund, R., & Wilson, W. (1993). Statistical methods. Boston, MA: Academic Press.
Gustafson, R. (1988). Fundamentals of electricity for agriculture. St. Joseph, MI: American Society of Agricultural Engineers.
Johnson, D. (1993). An electric power metering laboratory workstation, Journal of Agricultural Mechanization,7, 15-17.
Nadel, S., Elliot, R. Shepard, M., Greenberg, G., & Almeida, A. (2002). Energy efficient motor systems: A handbook on technology, program, and policy options. Washington, DC: American Council for an Energy Efficient Economy.
Roth, L., & Field, H. (1991). Introduction to agricultural engineering. New York: Van Nostrand Reinhold.
Schumacher, L., Ess, D., Strickland, R., & King, B. (2002). Agricultural systems management in the new millennium. Journal of Agricultural Systems, Technology, and Management, 15. Retrieved fromhttp://www.aste.usu.edu/JASTM/mar2002.pdf.
Slocombe, J., Wagner, L., Heber, A., & Harner, J. (1990). Test equipment for determining performance of electric motors. Applied Engineering in Agriculture, 6(1), 97-100.
Srivastava, A. K., Goering, C. E., and Rohrbach., R. P. (1993). Engineering Principles of Agricultural Machines. ASAE Textbook No. 6. St. Joseph, MI: ASAE. | ||
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