When the diesel generator is working, the cooling water temperature should be maintained between 80 and 90°C before it is allowed to enter full load operation, otherwise it will not work properly.
The ambient temperature is low in winter, and the corresponding diesel generator coolant temperature is also low. Therefore, before starting the machine, it first needs to be warmed up. When the diesel engine is exerting its maximum effective power, the coolant temperature inside the machine should be around 80°C. Therefore, it can be known that when using a diesel generator set in winter, power transmission is optimal when the water temperature is around 80°C.
In summer, the temperature is generally high, and the temperature of the coolant rises quickly during the high temperature season. Diesel engines are prone to cylinder pull accidents at water temperatures of 100°C. Therefore, when the coolant of the diesel generator set exceeds about 95°, the work should be stopped immediately or the load should be reduced to prevent the machine from causing a cylinder accident.
If the water temperature of the diesel generator set is too high, the main reasons may be: insufficient coolant, blocked water pipe in the water tank, thermostat failure, water pump failure, fan clutch failure.
If the temperature of the diesel generator set is too high, the fitting clearance of the moving parts will be reduced, the strength will be reduced, and the lubrication will be poor. In severe cases, it may cause cylinder pulling or shaft holding accidents in the generator set, resulting in reduced power and increased fuel consumption. Therefore, when the temperature of the diesel generator is too high, it must be repaired in time.
