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∙ 15y ago
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Why don't we use one piece for transformer core?
If, by 'one piece', you mean solid -as opposed to laminated- then the answer is that a solid core will have significantly-higher eddy current (circulating current) losses than a solid core.
Why armature core is laminated in dc machine?
to reduce the eddy current loss in the machine
What is the main material in a motor armature?
Instead of a single piece of metal, the armature is made up of laminated thin metal plates. The thickness of the laminations is determined by the supply frequency. They are approximately 0.5mm thick. For the armature core, silicon steel laminates are used to reduce eddy currents and hysteresis losses.
Why is it that the soft-iron core in transformers laminated?
When light enters your pupils, it refracts on your cornea and projects an image of your surroundings on your retina, a tiny screen in the back of your eye.
Why the core of the transformer is made laminated?
The alternating current flowing through transformer windings changes its polarity with each reversal of the current polarity, simultaneously changing the orientation of the induced magnetic poles within the core material. This constant fluctuation creates heat and other undesirable effects within the transformer, reducing its efficiency. Transformer cores are made of laminated steel or iron to minimize the effects of this electromagnetic phenomenon, which is known as hysteresis.AnswerThe alternating current flowing through a transformer's primary winding induces voltages into the transformer's core, as well as in the secondary winding. The voltages induced into the core create currents that circulate within the core -these are called 'eddy currents'. Laminating the core reduces the effective cross-sectional areas through which the eddy currents circulate, thus increasing the resistance to those currents, and reducing the associated losses (eddy-current losses). In addition to this, laminations allow the transformer core to be assembled much more easily than using solid cores.
Why is the core laminated?
The iron core of Transformers is laminated to reduce eddy currents, which cause a loss of energy.
How Core losses can be reduced?
by using the laminated core
Another name for a laminated iron core inductor?
choke
What is the reason for using laminated core?
Insulation of laminated core is required to reduce the circulating current points due to touching the two plates. This results in more iron loss and heat produced
How do you minimize core losses?
Hysteresis and eddy current loss constitute core loss. It can be reduced by replacing solid core by laminated core... by adeeb
What is the core made from in a step up transformer?
Laminated steel plates.
Why is the magnetic core laminaled?
The iron core of transformers is laminated to reduce eddy currents, which cause a loss of energy.
Does a laminated iron core increase eddy current losses?
No, the purpose of laminating the core is to reduceeddy-current losses.
It is essential for a relay energized by alternating current to have what?
a laminated core and a shading coil
What is iron core?
A core made of solid or laminated iron, or some other magnetic material which may contain very little iron.
How do laminated core IE transformers work?
Primary and secondary winding and mutual induction principle.
What is the purpose of blow out coil with laminated core in ac power contactor?
The laminations reduce a core loss called Eddy Currents, which are set up in the core by the ever changing AC current.
