1. Reason: The generator main motor speed is too low. Treatment: Adjust the generator main motor speed to the rated value.
2. Reason: Some generator rectifier diodes were faulty. Treatment: Check and replace the failed diode.
3. Reason: The contact area of the brush is too small, the pressure is insufficient, and the contact is poor. Treatment: If it is caused by the uneven surface of the collector, you can use emery cloth to polish the surface of the collector at low speed, or adjust the spring pressure.
4. Cause: There is a short circuit or ground fault in the stator winding or field winding. Treatment: Check the fault and eliminate it.
5. The reason is that the excitation brush is not in neutral position or the spring pressure is too low. Treatment: Adjust the brush to the correct position, replace the brush and addUse spring pressure.
6. Reason: The resistance of the excitation circuit is too large. Treatment: Reduce the resistance of the magnetic field rheostat to increase the excitation current. For solid-state excitation generators, check that the additional windings are loosely connected.
Why is the generator spark plug not lighting?
In short, the diesel generator runs the generator. In the cylinder, 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 temperature increases rapidly, reaching the ignition point of. diesel fuel. Diesel ignites, the gas mixture burns violently, rapidly expands in volume and pushes the piston down, which is called "work".
Each cylinder performs work in a certain ordere, and 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 diesel generator, the rotation of the diesel generator can be used to drive the generator rotor. Using the principle of "electromagnetic induction", the generator will produce induced electromotive force. a closed load circuit can produce current.
The basic structure of a diesel engine: it consists of cylinders, pistons, cylinder heads, intake valves, exhaust valves, piston pins, connecting rods, crankshaft, bearings and flywheels.
Detailed information
The advantages of diesel engines are high torque and good economic performance. Each operating cycle of a diesel engine also goes through four strokes: admission, compression, power and exhaust. However, because the fuel used in diesel engines is diesel, its viscosity is higher than that of gasoline and is not easy to evaporate, and its self-ignition temperature is lower than that of gasoline . Hence, the method of fuel formation and ignition. mixture are different from those of gasoline engines.
The main difference is that the mixture in the diesel engine cylinder is ignited by compression rather than ignited. When the diesel engine is running, air enters the cylinder. When the air in the cylinder is compressed to the end, the temperature can reach 500-700°C and the pressure can reach 40-50 atmospheres.
When the piston is near top dead center, the engine's high-pressure pump injects diesel into the cylinder at high pressure. Diesel forms fine oil particles and mixes with high pressure andhigh pressure. -air temperature. The diesel mixture burns on its own and expands violently. Generate explosive force and push the piston down to do this work. The temperature can reach 1900-2000℃, the pressure can reach 60-100 atmospheres, and the torque generated is very large, so diesel engines are widely used in large diesel vehicles.
Baidu Encyclopedia - Diesel Engine
Baidu Encyclopedia - Diesel Generator
Causes and solutions to generator spark plug misfiring :
1. Shift into the wrong gear: Shift to D or R, and there is no way to start the engine. The ignition can only be started when the gear is in position P or N.
2. There is no gas in the car In addition to the dead battery, it cannot start the fire. If there is no gas in the car, it will not start. In this case, the car must be refueled on time.
3. The fuel pump is broken. In this case, you need to go to a 4S workshop or repair shop to find a professional to check and repair it as soon as possible.
3. The circuit is defective. It is recommended to replace the circuit with a new one.
Here are the maintenance measures of automobile generators:
1. Pay attention to the degree of wear of the bearings: if insufficient lubrication is found, drop a few drops of oil from the mouth of the oil cup and be careful not to enter the rectifier, otherwise the transmission effect of power will be affected.
2. The contact surface of the brush is uneven and can be smoothed with a fine emery cloth: if the elasticity of the spring is insufficient and the brush is too worn, it must be replaced with a new one. If the brush is too short and is not damaged, you can use a wedge to insert it into the holder to reposition it.approach the rectifier.
3. The dust ring on the generator must be firm: it cannot be removed or used. It should be used to prevent dust from entering the interior and causing mechanical failure.
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