5-30. Answer the following questions about the machine of Problem 5-28.
(a) If EA = 430∠13.5° V and Vɸ = 440∠0° V, is this machine consuming real power from or supplying real power to the power system? Is it consuming reactive power from or supplying reactive power to the power system?
(b) Calculate the real power P and reactive power Q supplied or consumed by the machine under the conditions in part (a). Is the machine operating within its ratings under these circumstances?
(c) If EA = 470∠-12° V and Vɸ = 440∠0° V, is this machine consuming real power from or supplying real power to the power system? Is it consuming reactive power from or supplying reactive power to the power system?
(d) Calculate the real power P and reactive power Q supplied or consumed by the machine under the conditions in part (c). Is the machine operating within its ratings under these circumstances?
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