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Unformatted text preview: b) The angular velocity of the rotor mmf relative to the rotor. c) The frequency of the rotor currents. Problem 3: Determine the actual no-load and full-load speeds ( ϖ rm ) in revolutions per minute of the following device. a) A four-pole, three-phase 100 hp, 60 Hz, round-rotor synchronous machine. b) A 120-pole, three-phase 100 MW, 60 Hz, salient-pole synchronous machine. c) An eight-pole, two-phase 1 hp, reluctance machine supplied from a 5 Hz voltage source. d) A six-pole, three-phase 1/2 hp, permanent-magnet motor supplied from a 15 Hz voltage source. 2...
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- Spring '08
- Electric motor, 1 hp, 2 Hp, 100 MW, 100 hp, 120-pole