Special attention should be paid to
diesel generator when the following fault signals occur:
1. Abnormal noise: The diesel generator produces unusual noise during operation, which may be due to worn or loose internal parts. Mechanical noise, combustion noise, exhaust noise, and electromagnetic noise are common sources of noise.
2. High temperature: Overheating of the generator may be due to a cooling system malfunction or excessive load. If the cooling system fails and the internal temperature rises to the point of damaging the engine, it can cause problems.
3. Fuel supply issue: Insufficient fuel supply or poor fuel quality may lead to unstable operation of the generator. Fuel system malfunctions such as nozzle leaks and fuel leaks can also lead to abnormally high fuel consumption.
4. Difficulty starting: If the generator takes too long to start or cannot start, it may be due to insufficient battery power or a malfunction in the starting system. In addition, common causes include insufficient or aging battery power, starter motor failure, and fuel system issues.
5. Insufficient power: Problems such as clogged air filters, poor fuel quality, clogged fuel injectors, or poor atomization can lead to insufficient power. Engine cylinder wear and poor piston ring sealing can also lead to insufficient cylinder pressure.
6. Abnormal operation noise: Main bearing failure, piston pin failure, piston ring failure, etc. can cause abnormal knocking noise. Problems such as connecting rod bearing failure, valve failure, and loose mechanical components can also produce different knocking sounds.
7. Smoking issue: Black smoke indicates insufficient fuel combustion, which may be due to excessive fuel injection or incorrect injection timing. White smoke indicates that the engine cylinder body temperature is too low or the fuel water content exceeds the standard. Blue smoke indicates that engine oil has entered the combustion chamber, possibly due to worn piston rings or cylinder walls.
8. Electrical system failure: Problems such as abnormal generator generation, unstable voltage, non generation, and unstable output frequency may be caused by automatic voltage regulator failure, excitation system failure, etc.
