When the 150kw generator set fails, a simple judgment can be made based on some on-site phenomena. Such as sound, speed, time, power and so on. We introduced that analysis should be considered when checking and troubleshooting generator faults!
1. Judging the failure requires analysis
Systematic analysis of failure phenomena, one cannot rely on experience to repair a single component. You need to know that the systems and components of mechanical equipment are closely related. When a system or a component fails, it will inevitably involve other system components, causing varying degrees of damage to other system components. Therefore, if you want to solve the fault, you must analyze the cause of the fault as a whole, and combine the key parts with the closed parts of the fault, and check and repair them in time without leaving hidden dangers.
2. After the failure of the 150KW generator set is found, the disassembly workload should be minimized
When the equipment fails, do not blindly disassemble the generator parts. Before dismantling, according to the actual situation, the fault location is preliminarily judged, and the overall structure principle and fault location of the generator set are studied. On the basis of science, targeted disassembly is carried out to reduce the workload of disassembly, save time, and resume production as soon as possible.
3. We should look carefully, through the combination of listening and body odor
When the diesel generator set fails, most of them are on the production site. In this not simple situation, there is generally no corresponding testing equipment. But in the case of urgent production tasks at the production site, the fault needs to be eliminated as soon as possible, so under normal circumstances, we can see, hear, touch and smell different senses for troubleshooting.
First observe the external characteristics of the generator during operation, such as whether the exhaust pipe smoke is normal, whether the oil color of the diesel generator set is abnormal, whether there are traces of diesel leakage in the oil system, whether there is oil leakage, water leakage, cooling system, lubrication system , Whether the indicators of the diesel generator set are abnormal, whether the nuts of the running parts are loose, whether the starting circuit wiring is correct, whether the internal circuit of the control cabinet is short-circuited or open, whether the vibration of the meters of the diesel generator set is normal. This machine is very strong during operation.
Secondly, in terms of listening, we mainly find out whether there is abnormal noise during the operation of the generator, and judge the location of the fault according to the location and nature of the noise. During the operation of the equipment, pay attention to the impact of crankshafts, pistons, connecting rods, whether the noises of intake and exhaust valves, and transmission gears are abnormal, whether the explosion sound of diesel combustion in the combustion chamber is uniform, and abnormal noises may also occur when a single cylinder is turned off.
In terms of touch, it refers to the pulsation of the oil pipe and the vibration of the unit when the fault occurs, or whether the temperature of the oil pipe and oil shell of the 150KW generator set is the same as the oil temperature, whether the temperature of the generator shell is too high, and whether the water temperature is too high. it’s the same. The fault of the generator can be judged according to the temperature change, and the location and cause of its occurrence can also be judged by the presence or absence of vibration.
You can also determine whether the unit is faulty through sniffing. If there is a burning smell during the power supply process, it means that the generator is abnormal. For example, if the internal circuit of the generator, the components, the stator, the rotor and other abnormal faults, if the diesel engine oil burns, there will be scorching phenomenon. In the actual production process, according to the characteristics of different faults and performance phenomena, flexible and changeable means should be used for diagnosis, and comprehensive analysis of comprehensive factors should be carried out to find out the cause of the fault, and take targeted measures to eliminate it.
Post time: Aug-10-2021