The reason for the shutdown of diesel generator set during operation

The sudden shutdown of diesel generators during rotation is usually caused by the failure of the fuel supply system. However, from the analysis of the diesel generator failure phenomenon, the failure is unlikely to be the oil supply system, and may be the moving parts stuck or crankshaft and bearing bush bite caused.

Fault phenomenon: diesel generator set in the process of operation suddenly automatic shutdown.

Cause of failure: Automatic shutdown when fuel is exhausted, usually showing low speed shutdown. Fail-safe shutdown. Protection turned off due to external fault signal input. For example, the basic protection system of common diesel generators: overload, high water temperature, low oil pressure, overspeed and so on.

High water temperature shutdown: when the diesel generator set detects that the water temperature is higher than the set value, the diesel generator set will stop immediately. When high water temperature occurs, find out the cause of the fault before restarting the machine.

Low oil pressure shutdown: when the diesel generator set detects that the oil pressure is lower than the set value, the diesel generator set will stop immediately. After stopping, check the oil level again, find out the cause of the fault, and then restart the diesel generator set.

In addition to the above fault shutdown, there are over voltage, low voltage, over frequency, low frequency, high battery voltage, low battery voltage and a series of protection shutdown. Check whether the alarm stops, low oil pressure, high water temperature, overspeed, etc. Check whether overload, intake and exhaust pipes are unblocked. Check whether the relevant parts are damaged or loose, check whether the fuel tank is short of oil. Check the fuel injection pump for damage. Check speed sensors, electronic speed control boards, actuators, etc.

The above is the reason for the shutdown in the operation of the diesel generator set we summarized for you. If you want to know more, you can pay attention to our official website, we will continue to update.