What are the methods to check if the car generator is not producing electricity?

When the generator is defective, it can be tested on the car first, and the generator can be removed for further testing without disassembly. Test methods include: multimeter (voltage, resistance range), general DC voltmeter, DC ammeter and. oscilloscope, etc. You can use car bulbs and flashlight bulbs to make your own small test lights, etc., and you can also test them by changing the working status of the car. The automobile generator is the main source of power for the car. Its function is to power all electrical equipment (except the starter) and to charge the battery when the engine is running normally. On the basis of the three-phase stator winding of an ordinary alternator, the number of winding turns is increased and the terminals are taken out, and a three-phase rectifier bridge assembly is added. At low speed, the winderThe original winding and the additional winding are output in series, while at higher speeds only the original three-phase winding is output. Alternators are widely used in automobiles. When using them, you should pay attention to the following points: ① Frequently clean the dirt and dust on the surface of the generator and keep it clean and well ventilated. ② Frequently check the tightening status of various generator-related fasteners and tighten all screws in time. ③The tension of the transmission belt should be appropriate. If it is too loose, it will slip easily and result in insufficient power production; if it is too tight, it will easily damage the belt and generator bearings. ④When installing the battery, be careful not to install it incorrectly. Usually, install the positive wire first and not the ground wire, otherwise the diode will burn out easily. ⑤ When usingof an integrated circuit regulator, the ignition switch must be immediately turned off when the engine is not running. ⑥ It is never allowed to use the scraping method to test whether to generate electricity. ⑦ When the generator fails to generate electricity due to a fault, it should be eliminated in time, otherwise it will cause more serious faults.