5 Photographs of the windings and coils DC Windings: Two types of windings (a) Lap winding (b) Wave winding These two types of windings differ in two ways (i) number of circuits between positive and negative brushes, (ii) the manner in which the coil ends are connected. Such windings are used in AC machines.įig.
Open windings: There is no closed path in the windings. Starting from any point, the winding path can be followed through all the turns and starting point can be reached. Single and double layer windings are shown in Fig 4Ĭlassification of windings: Closed type and open type winding Closed type windings: In this type of winding there is a closed path around the armature or stator. Double layer winding: Two coil sides are placed in a single slot.
#Dc motor winding diagram full#
3 Full pitched and short pitched coils Single layer winding: Only one coil side placed in one slot. Chorded winding: When the pitch of the winding is less than the full pitch or pole pitch then the winding is called short pitch winding or chorded winding.įig. 2 Single and Multi turn coils Full Pitch winding: If the coil pitch for a winding is equal to pole pitch the winding is called full pitch winding Fig. Pole Pitch: Distance between the poles in terms of slots is called pole pitch.įig. Winding: Number of coils arranged in coil group is said to be a winding. 1 Different types of winding coils representations Coil group: One or more coil single coils formed in a group forms the coil group. Coils may be single turn or multi turn coils.
#Dc motor winding diagram series#
Coil: When one or more turns are connected in series and placed in almost similar magnetic positions. Turn: Two conductors connected in series and separated from each other by a pole pitch so that the emf induced will be additive. COMPUTER AIDED ELECTRICAL DRAWING (CAED) 10EE65 Winding Diagrams: (i) DC Winding diagrams (ii) AC Winding Diagrams Terminologies used in winding diagrams: Conductor: An individual piece of wire placed in the slots in the machine in the magnetic field.
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