10 Questions
What is the basic function of an excitation system in a generator?
Supply DC power to the field winding
Which type of excitation system uses a rotating rectifier?
Brushless Excitation System
What is the advantage of Static Excitation over Brushless Excitation?
Stationary Stator and Rectifier
How is the AC power fed to the field of the main generator in a Static Excitation System?
By tapping off from the generator terminal
What is the function of the excitation transformer in the static excitation system?
Combines voltage and current sources to provide three-phase AC output
What provides additional field excitation during system faults in the excitation transformer system?
Current source from the generator neutral leads
What is the role of the rectifier in the excitation system?
Provides a means for DC field voltage regulation
How does the voltage regulator control the generator terminal voltage?
Through control of SCR trigger circuits in rectifier bridges
Where is the generator field collector and brush-holder rigging assembly located?
Alongside the generator in a small housing
What differentiates Brushless excitation systems from static excitation systems?
Presence of rotating exciter machines
Explore the function and importance of excitation systems, specifically focusing on the static excitation method used in alternators. Learn about how excitation systems provide DC power to a field winding, improve generator performance, and respond to sudden changes in demand. Test your knowledge on reliable excitation in power generation.
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