How are the terminals on the generator identified?
1. Armature terminal The armature terminal is a relatively thick terminal on the alternator, generally 6mm in diameter.
2. Magnetic field terminal and neutral point terminal There are two relatively thin (generally 3mm in diameter) terminals on the generator, one of which is the ground terminal that is in direct contact with the shell or connected with a conductive copper sheet, and the other is adjacent to it. is the magnetic field terminal; there is also a separate terminal which is the neutral terminal.
3. Multimeter measurement and identification Before measuring, remove the wires from each terminal of the alternator, put the multimeter in the "Rx10" or "Rx100" gear, and then connect one meter stick to the alternator case, and the other meter stick to the brush successively The two thin binding posts on the shelf, the one with the resistance value of 0 is the ground binding post, and the one with the resistance displayed is the magnetic field binding post. The resistance value of the armature terminal to the grounding iron is large, and the resistance value of the neutral point terminal to the grounding iron is small.
