Solved: A certain 25-hp three-phase induction motor
Chapter 16, Problem P16.13(choose chapter or problem)
A certain 25-hp three-phase induction motor operates from a 440-V-rms (line-toline) three-phase source and draws a line current of 35 A rms at a power factor of 83 percent lagging under rated full-load conditions. The full-load speed is 1750 rpm. Under no-load conditions, the speed is 1797 rpm, and the line current is 6.5 A rms at a power factor of 30 percent lagging. Find the power loss and efficiency with full load, the input power with no load, and the speed regulation.
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