Abstract
A plant engineer installs a 100-hp motor on a new processing line being started up in his plant. He determines from the motor’s nameplate that its efficiency is 93.0%. Can he conclude that if he operates the motor with rated voltage and frequency applied and at 100-hp load the motor will use precisely (100 × 0.746)/0.93 = 80.215 kW? The answer, of course, is no. Then what can this plant engineer expect to experience in the way of power consumption? What are the tolerances and factors that must be considered? This chapter discusses the statistical nature of motor efficiency, testing methods for verifying efficiency, and the tolerance limits on efficiency that the motor user can expect.
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References
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© 1994 Springer Science+Business Media New York
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Jordan, H.E. (1994). Efficiency Labeling and Verification. In: Energy-Efficient Electric Motors and their Applications. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1465-1_4
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DOI: https://doi.org/10.1007/978-1-4899-1465-1_4
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4899-1467-5
Online ISBN: 978-1-4899-1465-1
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