The smaller one is the exciter. I do see a small capacitor on it and if you unplug it nothing comes out.

Permanent Magnet Dc Generator For Wind Power Generation
Brushless generator wiring diagram. The stator houses two sets of windings. Brushless generator schematic to energize the field dc excitation must be applied to the generator field coils. Wiring diagram 46876. The larger one produces power as described above. The bc generator is a brushless self excited generator which requires only the driving force of the engine to produce an ac output. 13 engines generators 1.
Reason being the wiring diagram is an as wired diagram and not a schematic so. Operation principle of brushless alternator in all alternators voltage may be generated by rotating a coil wire in the magnetic field or by rotating a magnetic field within a stationary coil wire it doesnt matter whether the coil is moving or the magnetic field is moving. I think it is a brushless type. Be generator electrical testing. Connect output wiring to the output terminals u1 and u2 inside the terminal box of the generator. When two cables in a brushless generator make a connection and intersect one point is automatically added to the joint but in case two wires cross without any form of communication then no point is added and therefore lines will move forward.
It produces a dc voltage which is fed directly to the field coils of the main alternator. The rotor shaft connects to the alternator. Brushless generators a brushless system actually contains two alternators on one shaft. Output voltage and frequency as shown in the wiring diagram below. Army tm 9 6115 644 24 air force to 35c2 3 446 12 marine corps tm 09249a09246a 242 generator stator exciter figure 4 10. Understandable it is not suppose to be a 240 generator.
It has stationary field coils and a rotating armature with a rectifier. I contacted harbor freight and they are worthless when it come to a remedy of thing to check. Pay particular attention to making sure that the wires connected to the generator output are of a heavy enough wire gauge to carry the output current rated output current. A brushless generators main parts include stator coils stator plates armatures rotator shaft rectifiers and an alternator. The excitation current is supplied from a brushless exciter mounted on the generator shaft. Rectifiers hold the rotor shaft on to the alternator.
The alternator acts as the dc power source for the main rotor.