2. The three-phase electrode stator has three output lines with the same color and is insulated from the ground. Single-phase motors are divided into full-wave DC and half-wave AC. It has two output lines. The difference is that AC coil has grounding resistance and DC coil has grounding insulation.
3. With the continuous improvement of motorcycle registration, the requirements for power supply are getting higher and higher, so there are more and more coils of magneto. At present, there are almost no four-pole coils in the single-phase DC motor type.
4. More than eight poles, some even reach dozens of coils, while the stators of three-phase electrodes are mostly more than eighteen. Small displacement vehicles, such as underbone, can also use unipolar coils now, but there is a trend to turn to DC ignition and lighting.
Extended data:
The commonly used motorcycle is AC motor, but it is divided into DC and AC in the rectification stage.
Judging from the stator, DC type (DC is not a motor, but a charging amount). The stator coil is not grounded. The coil is not grounded, and the AC stator coil is grounded. With a multimeter, the resistance between the coil joint and the ground is very small, that is, it is conductive.
DC stator has more poles and more coil turns, so it can generate more electricity and can be used for high-performance motorcycles and high-power loads.
References:
Baidu Encyclopedia-Motorcycle Magneto Stator