Q11 A 600W, 115V, 60Hz capacitor-start motor draws 13.8A from the supply at rated load. If the efficiency is 65% and rated speed is 1750 r.p.m., calculate (i) input power at rated load (ii) power factor at rated load (iii) rated motor horsepower. Ans[ 923.1W, 0.582 lag, 0.8 h.p.)

Q11 A 600W, 115V, 60Hz capacitor-start motor draws 13.8A from the supply at rated load. If the efficiency is 65% and rated speed is 1750 r.p.m., calculate (i) input power at rated load (ii) power factor at rated load (iii) rated motor horsepower. Ans[ 923.1W, 0.582 lag, 0.8 h.p.)

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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Q11 A 600W, 115V, 60Hz capacitor-start motor draws 13.8A from the supply at rated load. If the
efficiency is 65% and rated speed is 1750 r.p.m., calculate (i) input power at rated load (ii)
power factor at rated load (iii) rated motor horsepower. Ans[ 923.1W, 0.582 lag, 0.8
h.p.)

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