CHAIN WINDING In all aspects, this winding is similar to that of mush winding except that both coil sides of a coil have equal length and diamond shape.

Diamond shape

Example#2: on Chain winding Given data S=12; p=2;m=3; a=1; type=Chain Solution a)The number of coil groups, K b)The number of slots per pole per phase, q c)Coil pitch This is an even number and hence winding is not possible with an even coil span. There fore, it is shortened by one slot and a coil span of 5 slots is used. d)The electrical angle,  e)The angle between adjacent slots,  f)The distance between the beginning of each phase, g)If the beginning of Phase A is slot 1, then the beginning of phase B is slot 1+ =5 and the beginning of phase C is slot 1+2 =1+8=9 Full-Pitch i.e. there are two coils in a group i.e. there is one coil group per phase

Phase sequence AAC’ BBA’ CCB’

Connection diagrams

Data: S= 12, P = 2, a = 1, q = 2, K = 3 Draw 12 vertical lines (coil-sides) consequently and number them

Lay down coil-group belonging to phase A inside the slots 1,2 and 7,8.

Coil group of Phase B

Coil group of Phase C