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How the line representing the critical resistance of a DC generator just touches its characteristics?
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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 is Critical resistance of field?
Critical field resistance is the limiting resistance, above which a field will not excite
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 is critical speed of dc generator?
the maximum permissible speed above which the generator is likely to damage or may cause circuit to fail.
What is critical speed of pump?
Critical velocity is the speed that a falling object reaches when gravity and air resistance equalize on the object.when a liquid posses streamlined motion and its velocity is less than certain limiting velocity is called critical velocity for fluids and critical velocity for satellites can be defined as the velocity will give stable orbit, this is called the critical velocity for satellites
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.
What is external critical resistance of shunt generator?
it is the resistance with which the generatoe just excite.
How will a shunt generator behave if the field resistance is greater than the critical resistance?
the shunt generator wont be started .hehe
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
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 is Critical resistance of field?
Critical field resistance is the limiting resistance, above which a field will not excite
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 critical speed of dc generator?
the maximum permissible speed above which the generator is likely to damage or may cause circuit to fail.
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)
What are the Characteristics of creative thinker and critical thinker?
A creative thinker is innovative, open-minded, and willing to take risks in generating new ideas. On the other hand, a critical thinker is analytical, objective, and evaluates information carefully to make informed decisions. Both types of thinking are valuable for problem-solving and decision-making in different contexts.
