Why is the generator set must install a governor?

Diesel generator setsThe amount of oil supply of the injection pump depends on the speed of the diesel engine. The crankshaft speed increases, and the amount of oil supply is also increased. Conversely, the amount of oil supply is reduced.
When the diesel engine load changes, the speed changes greatly. Specifically:
When the load decreases, the speed of rotation increased, and the speed of rotation caused the amount of the plunger pump to increase, and the increase in circulating oil increases, which continued to rise, so that the engine speed is getting higher and higher, ZUI rear speed;
Conversely, when the load increases, the speed decreases, the speed reduction is reduced by the plunger pump circulation, and the increase in circulating oil is further reduced, causing the engine speed to be lower and lower, and the zui is turned off.
To change this malignant cycle, it is required to automatically adjust the oil supply according to load changes. Automatic control mechanisms that make the diesel generator are stably operated within the specified speed range. Moving the oil supply tension can change the amount of circulating oil supply, so that the speed of the diesel engine is basically unchanged.
Therefore, the diesel engine must meet the requirements of use, and the governor must be installed. At present, the governor of the diesel generator used at home and abroad is generally electronic speed control, but some are mechanical speed regulation. The advantage of electronic speed regulation is not automatic adjustment, which can save. And mechanical governor, it The throttle is fixed, so the general fuel consumption is relatively high. The general power generator sets use an electronic governor. And the domestic die-generator sets are all use mechanical governors.