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How will a shunt generator behave if the field resistance is greater than the critical resistance?
the shunt generator wont be started .hehe
What are probable causes for not have build up voltage in a shunt generator?
1. Field Flashing. 2. Resistance of the filed winding should be less than critical field resistance. 3. Speed of the motor should be greater than critical speed. 4. Interchange the field connections. 5. Check the commutator surface and brush.
Why armature winding resistance is less than field winding resistance?
An 'armature winding' is the rotor winding, and the 'field winding' is the stator winding.
How the line representing the critical resistance of a DC generator just touches its characteristics?
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.
What is the critical resistance in EDM?
In Electrical Discharge Machining (EDM), critical resistance refers to the optimal resistance value that allows for efficient spark generation and machining. It plays a crucial role in controlling the energy transfer from the power supply to the electrode and workpiece, impacting the machining rate and surface finish. Maintaining the right critical resistance ensures that the discharge process is stable and effective, allowing for precise material removal without excessive wear on the electrode.
Define the term critical field resistance?
critical resistance is the maximum resistance beyond which the generator failed to exite. it can b found form the occ of the generator.
What is critical resistance of the field circuit of a DC generator?
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.
Is the critical resistance of shunt field less or more than the field resistance of generator?
More due to the impedance levels in the generator
How will a shunt generator behave if the field resistance is greater than the critical resistance?
the shunt generator wont be started .hehe
What happens to the generated voltage of a self excited generator if shunt field resistance is greater than the critical resistance?
it doesn't develop emf ..........
What are probable causes for not have build up voltage in a shunt generator?
1. Field Flashing. 2. Resistance of the filed winding should be less than critical field resistance. 3. Speed of the motor should be greater than critical speed. 4. Interchange the field connections. 5. Check the commutator surface and brush.
What are the possible reasons for failing the voltage of a dc shunt generator to build up during starting?
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.
What is external critical resistance of shunt generator?
it is the resistance with which the generatoe just excite.
What is critical resistance in circuit theory?
With respect to an RLC circuit, the critical resistance is the resistance which would critically dampen the circuit. This means a resistance lower than the critical resistance would create an under-damped situation, and higher than the critical resistance would create an over-damped situation. An underdamped circuit will ocillate, an overdamped circuit will decay exponentially over a long period of time. The critically damped circuit will immediately decay to zero (time dependent on the values of the circuit elements)
Does series field winding have more resistance or a shunt field winding?
shunt field winding have more resistance than series field winding ************sai ganesh ************269*******
How to classify the critcal field in CRF?
classification of critical and noncritical field in CRF
Why armature winding resistance is less than field winding resistance?
An 'armature winding' is the rotor winding, and the 'field winding' is the stator winding.
