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Eddy current in transformer?
Yes, a transformer has eddy currents.
What are the advantages of shell type transformers?
this type of transformer used special low loss steel to minimize eddy current losses and reduced leakage flux.
Why eddy current damping is not used in moving iron instruments?
because eddy current is produced by the heat produced in winding
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
Does a laminated iron core increase eddy current losses?
No, the purpose of laminating the core is to reduceeddy-current losses.
How is eddy current related to the thickness of the stampings of core?
A: Eddy currents are current losses if an iron bolt is used to hold the core lamination together that alone will cause losses. Usually a brass bolt is used to eliminate losses
How eddy current losses andhysterious losses can be reduced?
eddy current can be reduced by using laminated cores. and also be reducing the thickness of the stampings. transformer iron loss is the combination of eddy current loss and hysterisis loss. both the losses depend on core of the transformer and iron loss is a constant loss.
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.
Core loss of an induction motor?
Just like a transformer, the core losses are a combination of eddy current losses and hysteresis losses.
What are the different kinds of losses in machines?
stray losses,armature copper losses,iron losses(Hysteresis and eddy current losses),mechanical losses(friction and windage losses)
What are the Advantages of amorphous core for a transformer?
The following advantages are there: 1. Low hysteresis losses 2. Low eddy current losses 3. Skin-effect in core is low
Can solid cores be used in transformers?
Yes but a solid core is not recommended because it allows large eddy currents to flow, which greatly increases the power losses in the iron core.That is why a core is usually made from insulated iron stampings.Another AnswerNo. A solid core would get very hot and damage the windings' insulation. As far as the primary winding is concerned, the core is simply another winding -a single-turn winding. So a large circulating current ('eddy current') will be set up within the core, leading to a large energy loss ('eddy current loss'). Laminating the core restricts eddy currents to flow within each lamination which, because of their small cross-sectional area, means that the eddy currents will be very small, and the losses also very small. The eddy current losses are inversely-proportional to the square of the number of laminations (approximately. anyway) so, say, 100 laminations mean that the losses will be 10 000 times lower than for a solid core.
When was Eddy Current Suppression Ring created?
Eddy Current Suppression Ring was created in 2003.
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
Why is it frequently necessary to ventilate alternators by blowing air through them?
The windings heat up due to I2R power losses and the iron cores heat up due to induced eddy current losses.
Eddy current in transformer?
Yes, a transformer has eddy currents.
