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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.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agogenerally magnetic core is used for creating a path for the flux to travel through.this magnetic core offers less reluctance path,where as air medium provides high reluctance path.
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What is eddi current?
An 'eddy' (not 'eddi'!) current is a current that flows in the magnetic circuit (core) of an electrical machine, due to a voltage induced into that core by a changing magnetic field. Eddy currents cause energy losses in electrical machines. To minimise eddy currents and, therefore, their losses, machines use laminated cores which restrict the paths through which eddy currents can flow.
What is the function of armature winding of a motor?
Armature is a rotating part of the machine, the coil which wound in the core of that rotating part.
What is meant by core in electrical machine?
The armature center of a d.c. machine is typically made of overlaid sheets keeping in mind the end goal to, (a) lessen hysteresis misfortune , (b) diminish armature copper misfortunes.
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.
Why transformer core is of magnetic not of wooden?
The transformer core is ferromagnetic in order to focus and concentrate the magnetic fields generated in the windings. This improves coupling and increases inductance.
What is the function of the core?
the function of core is to provide path to magnetic flux,a core may be armature core or may be transformer core
What is eddi current?
An 'eddy' (not 'eddi'!) current is a current that flows in the magnetic circuit (core) of an electrical machine, due to a voltage induced into that core by a changing magnetic field. Eddy currents cause energy losses in electrical machines. To minimise eddy currents and, therefore, their losses, machines use laminated cores which restrict the paths through which eddy currents can flow.
What is a example of converting electrical energy into magnetic energy?
An electromagnet, a coil of wire round a magnetic core. An electric current in the wire produces a magnetic field round the core, which contains energy which could be used to lift a load.
How electro magnet work?
ANY electrical current will be surrounded by a magnetic field. In an electromagnet, this magnetic field is often amplified by an iron core.
What is the function of armature winding of a motor?
Armature is a rotating part of the machine, the coil which wound in the core of that rotating part.
Why is the Earth's core magnetic if its temperature is above the level at which metal is magnetic?
Moving electrical currents do NOT have an upper temperature limit. You're thinking if permanent magnets.
How does the earth's magnetic field function?
convection currents in the outer core (which is in liquid form) move the molten metal of the outer core around to create the magnetic field. The magnetic field then blocks certain rays from the sun.
What is the definition of a core in electrical equipment?
A core in the electrical trade usually refers to the iron laminations that coils of wire are wrapped around. The core directs the magnetic field, that the coils of wire produce when energized, into a working force. This could be the iron core of a relay or a transformer core that is the centre and principle reason that a transformer can operate.
Is a core a magnetic core?
nopers
What is the function of the outer core?
The inner core is a product of geologic processes and does not have a purpose other than to occupy the space at the center of the Earth.
Does the earth have an iron core?
Earth is not magnetic. As you know it is stupid of you to think earth is magnetic. The Earth IS MAGNETIC!!! This is because of the Magnetic poles that the earth has. The north and south pole. This is just the general answer. It goes into a lot more detail...
What happen if wood is used for making transformer core instead of iron?
It would not function. In general, the core must be made of a material with certain magnetic properties. Wood has none.
