Lap-Type Windings

The name single-layer lap-type is from the lapped layout of end connection. In a lap-type winding, at least one coil set has two or more coils that overlap each other. If some coil sets have only one coil, this winding type is also called "crossed lap-type."

Half-Coiled Lap-Type Winding

An example of three-phase, four-pole, 24-slot single-layer half-coiled lap-type winding is shown in the figure on the left, and an example of three-phase, eight-pole, 36-slot single-layer half-coiled crossed lap-type windings is shown in the following figure on the right.

Whole-Coiled Lap-Type Winding

An example of three-phase, four-pole 48-slot single-layer whole-coiled lap-type winding is shown on the left, and an example of three-phase, four-pole 36-slot single-layer whole-coiled crossed lap-type winding is shown on the right.