the maximum permissible speed above which the generator is likely to damage or may cause circuit to fail.
A shunt generator is a type of DC generator that does not use a permanent magnet. Reducing the speed of the generator will reduce the output, but not the load the generator requires because the currents in the parallel branches are independent.
The line representing the critical resistance of a DC generator is the maximum resistance at which the generator can operate while still delivering the rated voltage. This line just touches the generator's characteristic curve at the point where the terminal voltage drops to zero under no-load conditions. Beyond this critical resistance, the generator will fail to build up voltage, as the armature reaction and losses exceed the induced electromotive force (EMF). The critical resistance is crucial for determining the stability and performance of the generator under varying load conditions.
An ac generator produces ac, a dc generator produces dc, it all depends on the generator.
construction of DC generator
because the dc motor will act as dc generator as same as dc generator acts as a dc motor .so it is called as dc machines.AnswerBecause generators and motors are machines, and operate on d.c.'A.C. machines' are generators, transformers, and motors which operate on a.c.
The value of resistance of shunt field winding beyond which the shunt generator fails to build up its voltage is known as " critical resistance at a given speed it is the maximum field resistance with which the shunt generator excite.
Easy. By controlling the speed of the motor or whatever is turning the generator's shaft.
A shunt generator is a type of DC generator that does not use a permanent magnet. Reducing the speed of the generator will reduce the output, but not the load the generator requires because the currents in the parallel branches are independent.
There are two types me dc generator 1 separately excited dc generator 2 self excited dc generator
The line representing the critical resistance of a DC generator is the maximum resistance at which the generator can operate while still delivering the rated voltage. This line just touches the generator's characteristic curve at the point where the terminal voltage drops to zero under no-load conditions. Beyond this critical resistance, the generator will fail to build up voltage, as the armature reaction and losses exceed the induced electromotive force (EMF). The critical resistance is crucial for determining the stability and performance of the generator under varying load conditions.
as speed increases, induced voltage increases
An ac generator produces ac, a dc generator produces dc, it all depends on the generator.
Possible reasons for failure of voltage buildup... 1) No residual Magnetism, 2) Field connection may be in reverse manner, 3) Field resistance is greater than critical resistance, 4) Speed is less than Critical speed.
first dc generator is max generator donno who invented t
A DC generator is a DC machine that is driven by an external rotating force. It is constructed the same as a DC motor.
By the operation supply 1.AC generator 2.DC generator In DC generator we are having the following types according to the construction 1.DC Series Generator 2.DC shunt Generator 3.DC Compound Generator
construction of DC generator