Two 50-kW, 440-V, three-phase, six-pole, 60-Hz squirrel-cage induction motors have identical stators. The dc resistance measured between
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Two 50-kW, 440-V, three-phase, six-pole, 60-Hz squirrel-cage induction motors have identical stators. The dc resistance measured between any pair of stator terminals is 0.204 ft. Blocked-rotor tests at 60-Hz produce the following results. Determine the ratio of the internal starting torque developed by motor 2 to that of motor 1
(a) For the same current and
(b) For the same voltage. Make reasonable assumptions.
Transcribed Image Text:
Volts (line-to-line) 74.7 Three-phase Motor Amperes 72.9 72.9 power, kW 4.40 99.4 11.6 2.
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Because this is a blockedrotor test one can ignore the magnetizing rea...View the full answer
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