0
How does the magnetic circuit concept aid in the design of transformer and machine cores?
Wiki User
∙ 6y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why a transformer called machine?
induced magnetic field by flowing electricity
What is Full load current in transformer?
The no-load current of a transformer is the current which is drawn from the source at rated voltage and frequency even when no actual load current is being supplied.The no-load current is what must be drawn to overcome the inherent and unavoidable losses of the transformer's components. Those losses comprise the primary circuit's resistance (known either as the "copper losses" or as the "resistance losses") and the transformer's magnetic reluctance (known either as the "iron losses" or as the "magnetic losses").Reluctance is the techical description given to the energy necessary to excite the magnetic circuit and overcome its hysteresis, the effects of eddy currents, etc.For more information see the Related link shown below.
Why do we need a transformer if we use a welding machine?
A welder requires high current at the expense of voltage, The transformer reduces the voltage allowing a higher current to operate the welsing machine.
What type of welding machine does not have positive and negative terminal connection?
Transformer type welding machine
What is stator of the armature?
The 'stator' is the generic term for the stationary parts of a machine, including its frame, magnetic circuit, poles, windings, etc.
Why a transformer called machine?
induced magnetic field by flowing electricity
What is Full load current in transformer?
The no-load current of a transformer is the current which is drawn from the source at rated voltage and frequency even when no actual load current is being supplied.The no-load current is what must be drawn to overcome the inherent and unavoidable losses of the transformer's components. Those losses comprise the primary circuit's resistance (known either as the "copper losses" or as the "resistance losses") and the transformer's magnetic reluctance (known either as the "iron losses" or as the "magnetic losses").Reluctance is the techical description given to the energy necessary to excite the magnetic circuit and overcome its hysteresis, the effects of eddy currents, etc.For more information see the Related link shown below.
What is the difference between transfermer and generator?
They are both classified as electrical machines. However a generator is a 'rotating' machine, whereas a transformer is a 'static' (i.e., has no moving parts) machine. A generator converts one form of energy into another (kinetic to electrical), whereas a transformer simply transfers the energy supplied to its primary circuit to its secondary circuit while either stepping up, or stepping down, the primary voltage.
What did paul Lauterbur do for the MRI machine?
Type your answer here.. Dr. Lauderber came up with the concept of using graduated gradient magnetic fields on top of the primary static magnetic field to assign data to a specific place. The gradients slightly change the magnetic field in 3 planes.
What type of welding machine does not have positive and negative terminal?
Transformer type welding machine
Which machine have very less losses in electrical?
Transformer
What is the function of magnetic core in electrical machine?
The core, together with the machine's air gaps, form what is known as a 'magnetic circuit', which is a low-reluctance path that encloses the magnetic flux produced by its field windings, in order to concentrate that flux in the air gap through which the armature passes.
Why does a single phase AC series motor have a very short air gap?
All motors (and, indeed, generators) have a very narrow air gap. This is because the air gap forms part of the machine's magnetic circuit.A 'magnetic circuit' is the path in which the magnetic field produced by the machine's field windings is constrained, and is made up of silicon-steel in series with a very narrow air gap.Air has a very much higher reluctance (equivalent to resistance in an electric circuit) than the silicon-steel part of the magnetic circuit to the formation of flux and, so, must be kept as narrow as possible because reluctance is directly-proportional to the length of the air gap.
How is current controlled in welding transformer?
in welding machine, the transformer used is basically a current transforrmer. so by changing the tap of secondary side of transformer, we can increase or decrease the current in the transformer.
Why do we need a transformer if we use a welding machine?
A welder requires high current at the expense of voltage, The transformer reduces the voltage allowing a higher current to operate the welsing machine.
How can hysteresis loss in magnetic material may be reduced?
Hysteresis losses depend on the type of metal used to manufacture the magnetic circuit of a machine. Most magnetic circuits are made from silicon steel. Generally speaking, there's not much you can do to reduce hysteresis losses as that has already been factored in by the machine's designer.
What is the limit for magnetic field developed for a DC machine?
The magnetic field used in machines is quantified in terms of its flux density (symbol: B), expressed in teslas. The flux density is established by the magnetic field strength (H), expressed in amperes per metre, set up in the field windings.As the magnetic field strength increases, the flux density increases until it reaches saturation. This is the point when the magnetic domains within the magnetic circuit are all aligned. At this point, any further increase in magnetic field strength will fail to increase the flux density.So saturation of the magnetic circuit limits the flux density of the field.
