Terminology of Armature Winding
Back pitch (YB): It’s the gap measured in terms of armature winding amongst the 2 sides of a coil at the back of the armature shown in Fig. YB represents it. For instance, if a coil connects conductor one (higher conductor in a slot) to conductor twelve (bottom conductor in another slot) at the back of the coil, then the back pitch is YB=12-1=11 conductors.
Front pitch (YF): It is the gap measured in terms of armature winding between the coil sides hooked up to anyone commutator segment shown in the fig. it’s denoted by YF. For instance, if coil sides twelve and three are connected to equivalent commutator segments, the front pitch is YF=12-3=9 conductors.
Resultant pitch (YR): It is the distance (i.e., measured in terms of armature conductors) between one conductor and the opening of successive conductors to that it’s connected; shown in Fig. YR denotes it. Therefore, the resultant pitch is that pure mathematics add of the back and front pitches.
Commutator pitch (YC): It’s the quantity of commutator segments spanned by every coil of the armature winding.
Progressive winding: A progressive winding is one within which, collectively traced through the winding, the connections to the commutator can progress around the machine in the same direction as is being traced on the trail of every individual coil.
Retrogressive winding: A retrograde winding is one within which, collectively, traces through the winding, the connections to the commutator can progress around the machine within the other way to it that is being traced on the trail of every individual coil.
Conclusion:
As we explore armature winding terminology to a close, we emerge with a deep appreciation for the intricate language that underpins the realm of electrical machines. The vocabulary we have encountered throughout this article serves as the threads that weave together the complex tapestry of armature winding, enabling the generation of electromagnetic power and efficient energy conversion.
