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The excitation system puts the load on the generator, so if it fails, the generator is liable to overspeed.
Think of it as the gears on a bicycle, where your legs are the power source, the gearing is the excitation system. If you're riding along, and suddenly your gears fall off, your legs will start to move very fast. You might hyper extend your knee, your foot might slip off the medal, you could hurt yourself in a bunch of different ways because you expect the resistance to be there and it is suddenly gone. The same applies to a generator - it's designed to run at specific speeds. Going significantly faster can cause all kinds of problems.
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Why the temperature and the pressure of gas are decreasing after flowing out from turbine?
The gas (working fluid) having flown through the turbine does some work on the turbine, converting its thermal energy into mechanical work produced by the turbine and coming out as an expanding gas with lower temperature and pressure.
How do you use the word turbine in a sentence?
My dadd uses turbine to heat the gas of hiss engine after he stopped at the gas stop and didn't find any gas left. ( This may be a weird looking sentence for turbine,but at least I got an A on it. )
Where are ratchet mechanisms used?
Ratchet mechanisms used in Gas power plant for Gas Turbine. (like Barring gear in steam turbine).
What are blades on a gas turbine made of?
bronze
What equipment is needed for investment casting of gas turbine buckets and blades?
the equipment needed for investment casting of gas turbine buckets and blades are i dont know you know
How many thermocouples are there approximately in an average gas turbine and how regularly are they replaced?
12 thermocouples and replaced if there is any failure in them.
Gas turbine generator?
gas turbine generator
Why is the gas turbine called as the power plant?
A gas turbine is one type of power plant. It produces power by burning gas to turn the turbine.
When was Gas Turbine Research Establishment created?
Gas Turbine Research Establishment was created in 1959.
What is turbine overspeed trip?
Typically two balls with springs holding them down, When the turbine spins too fast, the centrifugal force pushes the balls past the resistance of the springs at which point they hit a lever that stops steam/compressed gas flow to the turbine and the turbine shuts down. They are designed to keep the turbine from going so fast that it damages itself or the piece of equipment it is driving.
When first gas turbine works in gulf?
The first gas turbine in the Gulf started working in the 1970s
What is the function of IGV in gas turbine?
The function of IGV in a gas turbine is to prevent surges and stall conditions.
What is a gas turbine power generator?
Gas turbine power generators are used in two basic configurations. Simple Systems consisting of the gas turbine driving an electrical power generator. You fill them with gas carefully & turn them in.
Diagram of gas turbine?
A diagram of an impulse turbine is in related links.
When was Westinghouse Aviation Gas Turbine Division created?
Westinghouse Aviation Gas Turbine Division was created in 1945.
How inefficiencies of compressor and turbine affect back work ratio and efficiency of gas turbine?
Inefficiencies in the compressor of a gas turbine cycle increase the back-work ratio and decrease the thermal efficiency of the gas turbine cycle, since they increase the compressor work.
Why the temperature and the pressure of gas are decreasing after flowing out from turbine?
The gas (working fluid) having flown through the turbine does some work on the turbine, converting its thermal energy into mechanical work produced by the turbine and coming out as an expanding gas with lower temperature and pressure.
