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What else can I help you with?
What determines the voltage in a generator?
in generator the flux will determines the voltage. the flux will improve by auto voltage controller or any other equipment.
Is there any device which can convert constant magnetic flux into variable flux?
A generator, in general.
Why a given generator frequency is dictated by the size of the magnetic flux?
A generator's frequency is dictated by the power system frequency, and the number of poles in the generator. For 60 Hz power and a generator designed with two poles, the generator must turn at 3600RMPs (60 Hz * 60 seconds / minute). The magnetic flux is what induces the current in on the output winding. Spinning a synchronous generator faster or slower is not done to control the magnetic flux. The field winding voltage is varied to control this, and in turn control the output of the generator.
What is the relationship between the speed of a generator and its voltage and the torque on the generator shaft and the current produced by the generator?
emf produced by generator(E)=no. of turns in coil*rate of change of magnetic flux
How does an electric generator works?
The voltage was produce by cutting of the magnetic flux by the conductors.
Where do flux density used?
In all transformers,Motor,Generator, Alternator,etc.........
What is demagnetising effect of DC generator?
demagnetising effect of dc generator is to reduce main field flux there by reduction in generated voltage.
What change occurs in flux when load increases in DC shunt motor?
no change occurs because the flux is controlled by the supply and not the load on the generator. thus flux doesnot change unless the supply changes
Why is a motor is a reverse function of generator?
from Faraday's laws its clear that when ever there is change in flux, an emf is produced. in a dc motor there are permanent magnets that produce a magnetic flux. If the shaft of the motor is rotated, which in tern rotates the coil that is placed in the magnetic field. Thus, changing the flux that cuts the coil. since there is change in flux an emf is induced.thus, a dc motor can be used as a generator.
How do magnets help generator produce electricity?
Magnets would have magnetic flux around. As a coil linked with this magnetic flux is rotated such that the flux would change then an electro motive force is induced. This is the way in which generator functions.
Why a dc shunt generator may fail to self excite?
If there is no residual magnetism in the field poles then there would be no flux too induce the initial voltage for self exitation
What will happen if negative sequence relay is absent in generator?
The flux capacitor will overload and you will fail to reach 88 mph.
