I am a repairer and have been working since 1995. Nowadays, the engines of single-cylinder four-wheel agricultural tractors are generally equipped with a silicon rectifier generator. This generator needs to rely on a line to connect the battery to produce electricity. The generator relies on this wire to charge the battery via a current regulator. . The connection method of the simple circuit is as follows: the negative electrode of the battery is connected to a metal part of the motor with 20 square meters of copper wire, and the positive electrode is also connected to the unconnected copper wire behind the magnetic starter switch using 20-25 square meters of copper wire. A two-square metal wire should be connected to this screw, the other end is connected to the positive pole of the ammeter, the negative pole is connected to terminal 1 of the ignition switch, three wires are connected. at terminal 2 of the contaignition motor, and one is connected to the generator. The output threaded rod of M6 is connected (currently produced generators are equipped with a regulator outside the fuselage. If there is no regulator, the second wire is connected to the positive pole). of the regulator (the F pole of the generator is connected to the negative pole, and the lower line of the regulator is connected to the generator. Connect the terminal block behind the F pole of the machine). The third wire is connected to the car's light switch (I mean there are three terminals behind the key fob. If there are 4 terminals, 3 can be connected to the light switch . Terminal 3 of the ignition switch is connected to the smaller terminal behind it. the magnetic switch. The terminals (4 terminals on the ignition switch, 4 on the magnetic switch) are actually very simple, I wonder if you can understand them clearly.
Principle and diagram of generators
Ggenerally, they are cooled by water. Unless there is a water shortage in the local area and air cooling is specified, air cooling will be carried out.
Water cooling: Heat generated inside the body is carried away by the circulation of water inside and outside the body. A large fan is usually equipped for forced ventilation and heat dissipation.
>Air cooling: Use one or more large fans to force air toward the body to dissipate heat!
The same diesel generator set is basically designed with air cooling and water cooling!
Unless you are very, very, very short of water, water cooling is still recommended! Since water cooling is used in most cases, water cooling certainly has many advantages overStop air cooling!
1. Principle of Diesel Generator: Diesel engine drives the generator to operate and convert diesel energy into electrical energy.
In the cylinder of the diesel engine, the clean air filtered by the air filter is fully mixed with the high pressure atomized diesel fuel injected by the injector. Under the upward pressure of the piston, the volume decreases and the volume decreases. the temperature rises quickly, reaching the ignition point of diesel. Diesel ignites, the gas mixture burns violently, rapidly expands in volume and pushes the piston down, which is called "work".
2. Gasoline Generator: The gasoline engine runs the generator, converting gasoline energy into electrical energy.
In the cylinder of the gasoline engine, the mixed gas burns violently, expands rapidly in volume, and pushes the piston down to do work. That heWhether a diesel generator or a gasoline generator, each cylinder performs work in a certain order. The thrust acting on the piston becomes the force that causes the crankshaft to rotate through the connecting rod, thereby causing the crankshaft to rotate.
By installing the brushless synchronous alternator coaxially to the crankshaft of the electric machine, the rotation of the electric machine can be used to drive the generator rotor. Using the principle of "electromagnetic induction", the generator. willThe electromotive force induced by the output can generate current through the closed load loop.
Detailed information:
Getting started:
1 . For units stopped for more than 24 hours, the test valve must first be opened and the oil pump must be started. For units shut down for more than 7 days, the insulation resistance of the exquoting and operating circuit must be measured and must meet the requirements.
2. Start the fuel pump, release the air into the pipeline and observe whether the voltage is within the specified range. If it is normal, it can be officially launched.
3. Check whether the voltage of the starting power supply meets the requirements. If the voltage is normal, press the start button and release it after the diesel engine has run normally.
4. Once the diesel engine is running, observe the value indicated on the oil pressure gauge. When it exceeds the specified value, stop the oil pump, close the scavenge pump drain valve and tighten the front. clutch screw.
5. When the generator starts, it is considered that the generator and all electrical equipment are charged and the human body is not allowed to touch the live parts.
6. After starting the generator, the viDiesel engine speed should be gradually increased and inspection should be carried out before power transmission.
7. Gradually adjust the speed of the diesel engine, but when adjusting, pay attention to whether the generator is operating normally. Under normal conditions, the slip ring and commutator brushes should not exhibit any abnormal beating, sparking or noise.
8. Adjust the generator output voltage and frequency. The voltage value should be stable and reach 380V+-10V, and the frequency should reach 50Hz+-0.5Hz.
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