Uses of Lap and Wave Windings

Uses of Lap and Wave Windings Points : Uses of Lap and Wave Windings The advantage of the wave winding is that, for a given number of poles and armature conductors, it gives more e.m.f. than the lap winding.Conversely, for the same e.m.f., lap winding would required large number of conductors which will result in higher winding cost and less efficient utilization of space in the armature slots. Hence,. Wave winding is suitable for small generators especially those meant for 500-600 V circuits. Another advantage is that in wave winding, equalizing connections are not necessary whereas ion a lap winding they definitely are. It is so because each of the two paths contains conductors lying under all the poles whereas in lap-wound armatures, each of the P parallel paths contains conductors which lie under one pairs of poles. Any inequality of pole fluxes affects two paths equally, hence their induced e.m.f.s are equal. In lap-wound armatures, unequal voltages are produced which set tip a circulating current that produces sparking at brushes.