Electric Machinery and Power System Fundamentals
1st Edition
ISBN: 9780072291353
Author: Stephen J. Chapman, Stepehn J. Chapman
Publisher: McGraw-Hill Companies, The
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Chapter 4, Problem 4.2P
A 13.8-kV, 50-MVA, 0.9-power-factor-lagging, 60-Hz, four-pole Y-connected synchronous generator has a synchronous reactance of 2.5 Q and an armature resistance of
At 60 Hz, its friction and windage losses are 1 MW, and its core losses are 1.5 MW. The field circuit has a dc voltage of 120 V, and the maximum
- How much field current is required to make the terminal voltage
- What is the internal generated voltage
- What is the phase voltage
- How much field current is required to make the terminal voltage
- Suppose that this generator is running at rated conditions, and then the load is removed without changing the field current. What would the terminal voltage of the generator be?
- How much steady-state power and torque must the generator’s prime mover be capable of supplying to handle the rated conditions?
- Construct a capability curve for this generator.
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