Emergency Maintenance Methods for AC Generator and Regulators

Alternators and regulators have been widely used in automobiles due to their simple structure, reliable operation, and convenient maintenance. When the following situations occur to the AC generator and regulator, in general, the following methods can be used for emergency maintenance of the AC generator and regulator.

(1) When the electronic regulator or contact regulator does not match the grounding method of the AC generator and is urgently needed, the grounding method of the AC generator field winding can be changed to make the grounding method of the AC generator and regulator consistent.

(2) When checking whether the AC generator generates electricity, if there is no test light or multimeter at the moment, a fuse or other fine wire from the car can be used to ground and scrape the AC generator B+terminal. If there is a spark, it can be basically confirmed that the AC generator generates electricity; If there is no response, it indicates that the AC generator is not generating electricity.

(3) When a diode in the AC generator experiences a breakdown and short circuit, if found in a timely manner, the damaged diode lead can be cut off for emergency purposes (at this time, the AC generator can still generate electricity). Once conditions permit, a new component should be replaced immediately.

(4) When there is a malfunction in the electronic regulator that cannot be repaired, replaced, and urgently needs to be used, a corresponding contact type regulator can be used instead, and vice versa. If the contact type regulator has a fault, which cannot be repaired or replaced for a while and is in urgent need of use, under good road conditions, the regulating resistance on the contact type regulator or the filament resistance of the car bulb can also be used to limit the output voltage of the alternator, but the engine speed should be strictly controlled at this time. Once conditions permit, it should be repaired or replaced in a timely manner.

(5) When the regulator of an integral AC generator has a malfunction that cannot be repaired or replaced for a while and is in urgent need of use, the wire connecting the AC generator to the regulator can be disassembled first, and then the magnetic field circuit of the AC generator can be led out with a wire and connected to the corresponding regulator. This can also enable the AC generator to generate electricity. Once conditions permit, it should be repaired or replaced in a timely manner.

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