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A 380-V, 50 Hz, 250-hp 0.8-PF-leading eight-pole, delta-connected synchronous motor has a synchronous reactance of 0.7 ohm and negligible armature resistance. Ignore its friction,
A 380-V, 50 Hz, 250-hp 0.8-PF-leading eight-pole, delta-connected synchronous motor has a synchronous reactance of 0.7 ohm and negligible armature resistance. Ignore its friction, windage, and core losses. If this motor is initially supplying rated hp at 0.8 PF lagging, what are the magnitude of Ea? Select one: O A. 315 O B. 352 O C. 340 O D. 406 OE. 186
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Engineering Economy
Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
15th edition
132554909, 978-0132554909
