Why Armature Core Is Laminated In Dc Machine

The armature core of dc generator is cylindrical in shape and keyed to the rotating shaft. Ventilate air during rotation. To prevent eddy current and hysteresis.

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Reduce the weight of the core.

Why armature core is laminated in dc machine.

10 why is the armature core of a dc machine laminated. Asked by wiki user. The rotating part of the dc machine or a dc generator is called the armature. Safe the steal for lamination.

Balance the weight of the core for balanced rotational motion. Motor armatures have to be made of thin laminations of iron to work efficiently a plain solid iron armature would waste a lot of energy in at least two ways the magnetic field that is produced by. The top image depicts a solid armature while the bottom image shows an armature made of five laminations. The armature consists of a shaft upon which a laminated cylinder called amature core is placed.

11 what is the function of armature in a dc generator. Some through holes are provided in the laminated armature core in a dc machine to. Answer for why is the armature core of a dc machine laminated. The armature core of a dc machine is laminated to reduce the eddy current loss.

Armature of dc generator. The function of armature is to rotate the conductors in a uniform magnetic field and provide a path of very low reluctance to the magnetic flux. 2020 06 25 17 28 04 2020 06 25 17 28 04. Armature core rotates and comes under n and s poles alternately and this flux variations produce hysteresis and eddy current losses in the core and hence the core is laminated.

To reduce the eddy current loss. What is the main factor which governs the size and rating of an electric machine. The yoke is stationary and no flux variations take place and hence the. Why the armature core in d c machines is constructed with laminated steel sheets instead of solid steel sheets.

Why armature core is laminated in dc machine. The sum of the eddy currents in the laminated core is smaller than the current in the solid core. Lamination highly reduces the eddy current loss and steel sheets provide low reluctance path to magnetic field i e decreases hysteresis loss. Asked by haroon rehman.