There are several different types of generators. I'll explain how a "large" 3 phase synchronous generator works - the type that most likely is generating the power you're using at work or home.
The generator is only a small part of a power plant. It is composed of two sets of windings, one on the stator, or stationary part of the generator, and the other mounted on the rotor, or rotating part of the generator. Usually the rotor windings have voltage applied to them by an outside source that is controllable by the power plant operators through what is called the "voltage regulator".
A power source is used to spin the rotor. This can be a steam turbine, a wind turbine, and many others. As the rotor spins, it induces current in the stator windings in proportion to the amount of power applied to the rotor windings by the voltage regulator (VR). This current flows out of the stator windings, which are connected to a load through the transmission system. This current, in turn, induces a reverse force (called "back emf") on the rotor winding. The back emf causes the rotor to slow down. As the rotor slows down, the governor (a system that monitors the generator's speed, and keeps it within a certain range) kicks in to speed the generator back up.
In a generator, a magnet is rotated. This rotating component is called the rotor (surprise) and it rotates inside a coil of wire, called the stator (because this coil of wire is stationary and doesn't move). This rotating magnet causes the magnetic field to change from North to South, over and over again. This causes a change in the "flux density", which is a little bit like the amount of magnetic field through the coils of wire (the stator). If you change a magnetic field around a wire, it induces a current in the wire. A law called Lenz's law, states that if magnetic flux changes, it will induce a current to oppose that change. That is to say, if you change the magnetic flux, this will cause a current in the material that will try to make a magnetic field in the opposite direction that will oppose that change. So when you turn a generator, you are changing the magnetic field inside the generators copper coils. The electrons in those wires start moving so that they can make a magnetic field to prevent you from turning it. That is why it's hard to turn it. Current is flowing electrons, so when they start flowing to oppose your turning, they cause an electric current.
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Note: A simple DC motor can be used as a generator if you just turn it and attach a small load to its terminals (a little light bulb). The operation of a simple DC motor and DC generator are identical, just used backwards.
A function generator is a piece of electronic test equipment. Its main use is to generate electrical waveforms.
A: A function generator do just that output a function from any input. It can be as simple as sine wave, square wave, sawtooth, and ramp generator principle is to provide amplifiers that the output are gated to limits allows sum and subtract the input to provide the desired function. It looks more like an analogue computer when finished if it is very complex in design.
After powering on the function generator, the output signal needs to be configured to the desired shape. Typically, this means connecting the signal and ground leads to an oscilloscope to check the controls. Adjust the function generator until the output signal is correct, then attach the signal and ground leads from the function generator to the input and ground of the device under test. For some applications, the negative lead of the function generator should attach to a negative input of the device, but usually attaching to ground is sufficient
The governor controls the speed of the power source rotating the generator. This has to be continually adjusted to match the load on the generator. As more load is switched on, the generator becomes harder to turn, this would cause the generator to slow down, unless the power unit is adjusted to increase power and correct the speed.
It changes mechanical energy to electricity.
this generator operates using logical function thats why is called as logic function generator
To the untrained eye, they appear identical in both form and function.
A function generator creates electrical waveforms. The purpose is for developing and testing electric equipment.
digital generator nothing but square wave generator or astable multivibrator
A function generator is a piece of electronic test equipment. Its main use is to generate electrical waveforms.
Hmmm, probably because among all the "classic" function generator ICs, this is the only one you can still buy.
There are a few options if you are looking for a good function generator. The Agilent 33220A and the Tek AFG3000 have both received excellent reviews and can be purchased online.
please give me the answer
A: A function generator do just that output a function from any input. It can be as simple as sine wave, square wave, sawtooth, and ramp generator principle is to provide amplifiers that the output are gated to limits allows sum and subtract the input to provide the desired function. It looks more like an analogue computer when finished if it is very complex in design.
with the help of function generator we found wave in oscilloscope
They rotate the armature coil.
definition, parts and function