Compensating windings is placed in which part of a D.C motor?
A. On yoke in the pole faces.
B. On yoke in the inter pole gap.
C. On armature.
D. None of the above.
Answer: A
Share your understanding of this question with the correct explanation.
The answer is A. On yoke in the pole faces.
A compensating winding is a winding that is placed on the yoke of a DC motor in order to reduce the effects of armature reaction. Armature reaction is the tendency of the armature current to distort the magnetic field of the motor. This distortion can cause problems such as sparking at the brushes and decreased efficiency.
The compensating winding is placed on the yoke in the pole faces in order to create a magnetic field that opposes the distortion caused by the armature current. This helps to keep the magnetic field of the motor uniform, which reduces the problems caused by armature reaction.
Here are some of the benefits of using a compensating winding:
The main drawback of using a compensating winding is the increased cost. The compensating winding requires additional copper and labor to install.
Here are some of the applications of compensating windings:
Compensating windings are not used in all DC motors. They are only used in motors where the problems caused by armature reaction are significant enough to warrant the increased cost.