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Where does the voltage that is necessary for field excitation on the rotor originates from?
The excitation current is provided by a small self-excited pilot generator, attached to the same shaft as the alternator's rotor.
Does buttressed mean the same thing as reinforced?
Yes, they can mean the same thing.
Why gas turbine is trip on excitation failure?
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.
Is asphalt the same as blacktop?
Yes. These are two different names for the same thing.
Is switch yard and substation are same thing?
no
In synchronous motor theory is excitation current the same as field current?
Yes, in synchronous motor theory, excitation current is the same as field current. This current is used to produce the magnetic field in the rotor that interacts with the stator current to generate torque and make the motor operate synchronously.
Where does the voltage that is necessary for field excitation on the rotor originates from?
The excitation current is provided by a small self-excited pilot generator, attached to the same shaft as the alternator's rotor.
Is master-vision harmful to health?
Excess of anything is harmful . If you are gating excitation from inside and do this, than no problem. But one think, if you are doing the same thing again and again and it becomes your habit then your habit will bound you to do this again and again. this is the bed thing
Why did al sodium show the same color in the flame?
Sodium produces a characteristic yellow color in a flame due to the excitation of its electrons to higher energy levels. This excitation results in the emission of light with a specific wavelength corresponding to the yellow color. This unique color emission is why sodium displays the same color in a flame test regardless of its chemical compound.
Why does excitation energy increase down the group for 1st group alkali metals?
Excitation energy for any 2 atoms is compared only for those electrons in the same energy shell.so as we go down the group the energy required to promote the electron in the same orbit to highest possible energy state increases due to the increase in effective nuclear charge
Are average and range the same thing?
No, they are not the same thing. Mean and average are the same thing.
Why does the no-load characteristic differ for increasing and decreasing excitation current?
The no-load characteristic of a generator differs for increasing and decreasing excitation current due to magnetic hysteresis, residual magnetism, and core saturation effects. When the excitation current increases, the magnetic domains in the iron core gradually align with the applied magnetic field, resulting in a higher generated electromotive force (EMF). However, as the excitation current decreases, these magnetic domains do not immediately return to their original unaligned state. This lag in realignment causes the generated voltage to remain higher during the decreasing phase of excitation than during the increasing phase at the same level of excitation current. This phenomenon is known as magnetic hysteresis. Even when the excitation current is zero, the magnetic core retains some level of magnetisation, known as residual magnetism. This residual magnetic field means that when the excitation current starts increasing again, it takes additional current to overcome this residual alignment before the generated voltage rises significantly. As a result, the voltage is initially lower when increasing the excitation current from zero. Conversely, during the decreasing phase, the residual magnetism keeps the voltage higher than it would be if the core were fully demagnetised, further contributing to the difference between the increasing and decreasing curves. As the excitation current increases, the magnetic core of the generator approaches saturation. Near saturation, any further increase in excitation current results in only a small increase in generated voltage because the core's magnetic domains are almost fully aligned. When the excitation current decreases from this saturated state, the magnetic domains gradually return to a less aligned state. This gradual realignment causes the generated voltage to decrease differently than it increased, contributing to the asymmetry between the increasing and decreasing excitation phases.
What is another word for and she did the same thing?
the same thing she did
What is synchronous impedance?
Synchronous impedance is also known as the EMF method. It is a ratio of open circuits to short circuits, when they both are referred to the same field excitation.
Are energy and work the same thing?
no it is not the same thing.
Is growing and making the same thing?
Yes they are the same thing
Is nick and Nickelodeon the same thing?
Yes, they are the same thing.
