The number of stator winding branches is generally related to the rated current, which is related to the capacity. If the stator winding current is large, the stator winding bar will undoubtedly be thick, but due to the structural limitations of the unit, it cannot be infinite. At this point, the winding branch should be added to reduce the branch current. There are options for branches 2, 3 and 4. The specifics always depend on the different designs.
Single layer winding, double layer winding, triple layer winding.
1. Single Layer Winding: Refers to winding the coil in a single layer on the rotor or stator. This method is simple, easy and inexpensive, but the output voltage and current waveforms are relatively unstable.
2. Double-layer winding: refers to winding the coil in two layers on the rotor or stator. This method can improve the smoothness of the output voltage and current waveform of the generator, but the difficulty and cost. winding are also high. Increase accordingly.
3. Three-layer winding: Refers to three layers of coils wound on the rotor or stator. This method can further improve the smoothness of generator voltage and current waveforms, but the difficulty and cost of operation. winding are also higher.