Judgment and elimination of faults in daily use of diesel generator set

The failure of diesel generator set is caused by many factors, and the phenomenon caused by different faults is not the same. If the fault is to be effectively solved, the following aspects need to be done.

The various systems, components and parts of diesel generator sets are closely related to each other. The failure of one component, one system or one part will inevitably involve other systems, components or parts. Therefore, a fault phenomenon can not be viewed in isolation, to the overall analysis of the cause of the fault and timely troubleshooting.

When troubleshooting, it is not allowed to disassemble the parts of the diesel generator set blindly. The structure, working principle and fault location of the diesel generator set must be understood before disassembly. Only on the basis of scientific and careful analysis can the disassembly be carried out. Find the fault to be careful, combined with look, listen, touch, smell, all-round inspection. When troubleshooting, it is necessary to find the classification according to the major system of diesel generator set. Diesel generator set can be divided into diesel engine and generator two parts.

Diesel engines have two components and five systems. The two components are fixed components and relative motion components of the diesel engine, such as the cylinder head, cylinder body, cylinder liner and so on are fixed components, while the piston, connecting rod and crankshaft are relative motion components. The five systems are: fuel system, lubrication system, cooling system, distribution system, starting and charging system.

The generator is composed of stator, rotor, automatic voltage regulator and transmission control part. The relationship between the stator and the rotor is that the generator rotor is fed direct current to form a fixed magnetic pole. When the rotor rotates, the stator cuts the magnetic force line to produce AC voltage. The function of the generator automatic voltage regulator is to keep the generator terminal voltage constant when the generator load increases (or decreases) the excitation current