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Iron losse are constant at all different levels of speed
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∙ 13y ago
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What are the constant losses in a DC machine?
Constant losses Those losses in a d.c. generator which remain constant at all loads are known as constant losses. The constant losses in a d.c. generator are: (a) iron losses (b) mechanical losses (c) shunt field losses
Why the iron losses in a transformer is constant at all load prove that?
since the iron loss depends only on the volage and frequency,the supply volage is 230v ac.Hence iron loss is always constant
What is iron loss?
Iron losses (Pi) are independent of of load which occur due to pulsation of flux in the core. Iron losses include both Hysteresis loss and eddy current loss and is same at all the loads.
How does speed affects the generated emf in a self-excited generator?
to start a self excited generator you must remove the load the residual magnetism is the excitation starting with a load demagnetizes the all the iron dc generators are designed to have full field at operating voltage so voltage is constant over a pretty wide range of speeds ac can have permanent magnet embedded the shunt feild in the rotor keeps the voltage constant of course the frequency varies with rpm
Why iron loss is constant but copper loss is variable in a transformer?
Iron loss it includes the core loss is partically the same at all loads and copper loss the value of cu loss is found from short circuit test
What are the constant losses in a DC machine?
Constant losses Those losses in a d.c. generator which remain constant at all loads are known as constant losses. The constant losses in a d.c. generator are: (a) iron losses (b) mechanical losses (c) shunt field losses
Why are iron losses constant at all loads in a transformer?
because iron loss is depends on frequency and it is constant through out the operation ...irrespective from load
Why the iron losses in a transformer is constant at all load prove that?
since the iron loss depends only on the volage and frequency,the supply volage is 230v ac.Hence iron loss is always constant
What are 2 examples of meteorites?
Here are three: Iron, Stony, and Stony-iron, referring to their composition. They come in all sizes and come in at all speeds.
What is the difference between constant speed and average speed?
Average speed is a representation of all your speeds between two points, constant speed is just unchanging speed.
What is the mass of iron near the surface of the earth?
The atomic mass of iron is 55.845amu, and is constant in all environments.
How iron is heated due to electricity?
Iron (like all material) has resistance to current flow. When electrons do flow through iron you get the standard I squared R losses ... all of which is heat.
When do you use constant speed?
Speed of...? It depends on the context. Natural constant speeds include those of light (and all electromagnetic radiation) in vacuo; also that of electricity along a conductor. The average speeds of sound in air and water are taken as constants in acoustics. You may also need specific constant speeds of say, an electric motor or generator.
What is iron loss?
Iron losses (Pi) are independent of of load which occur due to pulsation of flux in the core. Iron losses include both Hysteresis loss and eddy current loss and is same at all the loads.
What is the difference between syncromesh and constant mesh gearboxes?
Constant means all gears are spinning all the time and double clutching manually synchronizes the gears by matching the engine speeds, syncromesh means that the gearbox has been aligned and synced so that you change with one engauge and disingauge of the clutch.
How does speed affects the generated emf in a self-excited generator?
to start a self excited generator you must remove the load the residual magnetism is the excitation starting with a load demagnetizes the all the iron dc generators are designed to have full field at operating voltage so voltage is constant over a pretty wide range of speeds ac can have permanent magnet embedded the shunt feild in the rotor keeps the voltage constant of course the frequency varies with rpm
Why iron loss is constant but copper loss is variable in a transformer?
Iron loss it includes the core loss is partically the same at all loads and copper loss the value of cu loss is found from short circuit test
