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Example. A submarine has a 3-phase, Y-connected, 2-pole, 60Hz synchronous generator rated to deliver 1687.5 kVA at a F-0.8 lagging with a line voltage of 450-V. The machine stator resistance Rs -0.004 12. The synchronous reactance Xs-0.08 2. The actual system load on the machine draws 900 kW at F 0.6 lagging. Assume that a voltage regulator has automatically adjusted the field current so that the terminal voltage is its rated value. Mechanical losses are 100 kW. (a) Determine the reactive and apparent power delivered by the generator. (b) Find the current delivered by the generator (c) What is the overall efficiency?

Example. A submarine has a 3-phase, Y-connected, 2-pole, 60Hz synchronous generator rated to deliver 1687.5 kVA at a F-0.8 lagging with a line voltage of 450-V. The machine stator resistance Rs -0.004 12. The synchronous reactance Xs-0.08 2. The actual system load on the machine draws 900 kW at F 0.6 lagging. Assume that a voltage regulator has automatically adjusted the field current so that the terminal voltage is its rated value. Mechanical losses are 100 kW. (a) Determine the reactive and apparent power delivered by the generator. (b) Find the current delivered by the generator (c) What is the overall efficiency?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Example. A submarine has a 3-phase, Y-connected, 2-pole, 60Hz synchronous generator rated to deliver 1687.5 kVA at a F-0.8 lagging with a line voltage of 450-V. The machine stator resistance Rs -0.004 2. The synchronous reactance Xs-0.08 2. The actual system load on the machine draws 900 kW at F,-0.6 lagging. Assume that a voltage regulator has automatically adjusted the field current so that the terminal voltage is its rated value. Mechanical losses are 100 kW. (a) Determine the reactive and apparent power delivered by the generator. (b) Find the current delivered by the generator (c) What is the overall efficiency?
Transcribed Image Text:Example. A submarine has a 3-phase, Y-connected, 2-pole, 60Hz synchronous generator rated to deliver 1687.5 kVA at a F-0.8 lagging with a line voltage of 450-V. The machine stator resistance Rs -0.004 2. The synchronous reactance Xs-0.08 2. The actual system load on the machine draws 900 kW at F,-0.6 lagging. Assume that a voltage regulator has automatically adjusted the field current so that the terminal voltage is its rated value. Mechanical losses are 100 kW. (a) Determine the reactive and apparent power delivered by the generator. (b) Find the current delivered by the generator (c) What is the overall efficiency?
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