A 2300-V 1000-kVA 0.8-PF-lagging 60-Hz two-pole Y-connected synchronous generator has asynchronous reactance of 1.1 Q and an armature resistance of 0.15 Q. At 60 Hz, its friction and windage losses are 24 kW, and its core losses are 18 kW. The field circuit has a dc voltage of 200 V, and the maximum If is 10A. The resistance of the field circuit is adjustable over the range from 20 to 2002. The OCC of this generator is shown in Figure below. a. How much field current is required to make Vfequal to 2300 V when the generator is running at no load? b. What is the internal generated voltage of this machine at rated conditions? c. How much field current is required to make VT equal to 2300 V when the generator is running at rated conditions? d. How much power and torque must the generator’s prime mover be capable of supplying?
A 2300-V 1000-kVA 0.8-PF-lagging 60-Hz two-pole Y-connected synchronous generator has asynchronous reactance of 1.1 Q and an armature resistance of 0.15 Q. At 60 Hz, its friction and windage losses are 24 kW, and its core losses are 18 kW. The field circuit has a dc voltage of 200 V, and the maximum If is 10A. The resistance of the field circuit is adjustable over the range from 20 to 2002. The OCC of this generator is shown in Figure below. a. How much field current is required to make Vfequal to 2300 V when the generator is running at no load? b. What is the internal generated voltage of this machine at rated conditions? c. How much field current is required to make VT equal to 2300 V when the generator is running at rated conditions? d. How much power and torque must the generator’s prime mover be capable of supplying?
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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