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How does a generator exciter work?

Exciter controls the magnetic field in the generator system and controls the output voltage and/or current.


What is ceiling voltage in exciter?

ceiling voltage is the maximum field voltage that the exciter can withstand before going into unstability


What is difference between radial flow turbine and axial flow turbine?

in a radial flow turbine the steam enters the turbine in the direction of its radius and leaves it in the direction of the axis of the shaft. in a axial flow turbine the steam enters the turbine in the direction of the axis of the shaft and leaves the turbine in the same direction.


How do you spell turbine?

Turbine is the correct spelling.


Why the pilot exciter having high frequency in electrical generator?

I'm no expert but I believe the high frequency is due to the number of poles (North-South) of the pilot exciter. The frequency of a generator is directly link to its speed and the number of poles. Most generators will run at 1800RPM and will have 4 poles to achieve 60Hz. The pilot exciter being on the same shaft will also run at 1800 rpm but will probably have more then two poles. finding the formula for frequency of a generator should help you in answering your question. The next question should be why would you build a pilot exciter with multiple poles and a high frequency? The output of the pilot exciter is going to be rectified to DC so it would make sense to do it with a high frequency and get a smoother DC signal out of the rectifier.