The Armature Of Dc Motor Is Laminated To

Adding silicon to steel increases its electrical resistance improves the ability of magnetic fields to penetrate it and reduces the steel s hysteresis loss.

The armature of dc motor is laminated to.

The armature of dc machine is made up of laminated sheets to. Because of this manufacturers strive to make armature core laminations as thin as practical from a manufacturing and cost standpoint with modern dc motors typically using laminations that are 0 1 to 0 5 mm thick. The magnetic field that is produced by. Motor armatures have to be made of thin laminations of iron to work efficiently.

Generator is laminated to a reduce the bulk b provide the bulk c insulate the core d reduce eddy current loss. Question is the armature of a dc machine is laminated options are a to reduce the hysteresis loss b to reduce eddy current loss c to reduce the mass d to reduce the inductance e leave your comments or download question paper. The commutator segments are connected to the armature conductor by means of. By reversing the connections of either the armature or the field winding connection with the supply.

That is why armature of dc machines either motor or generator is laminated. The armature winding of dc motor is attached to the rotor or the rotating part of the machine and as a result is subjected to altering magnetic field in the path of its rotation which directly results in magnetic losses. The armature of d c. The armature reaction is the interaction between armature flux and field flux when current is introduced to a dc motor.

Therefore smaller the current hence lesser eddy current loss. Silicon steel also known as electrical steel is steel with silicon added to it. A plain solid iron armature would waste a lot of energy in at least two ways. Dc motor or direct current motor multiple choice questions and answers.