How to Deal With Low Frequency Shutdown of Generator?

by Starlight Generator dieselgeneratortech

1.Check the working situation of cylinder. After running speed of diesel generator is about 700r/min, check the temperature of exhaust pipes of each cylinder by hand. If the temperature of cylinder is different from others, it is a problem of cylinder. If the temperature of cylinder is the same, it is not a problem of cylinder.

2.Check diesel oil pressure. First, remove the oil outlet pipe of the oil pump, block the oil outlet hole with one hand, and press the handle of the oil pump repeatedly with the other hand to observe whether the oil pressure is normal.

3.Check high pressure oil pump. Remove the side cover plate of the high-pressure oil pump, run the diesel generator set, then carefully observe whether there is any leakage of diesel oil between the high-pressure oil pump and the pump body. If there is oil leakage, it shows that the clearance between the plunger and the plunger sleeve of the oil pump channels oil, which leads to insufficient oil supply in the low-pressure oil pipeline, power decline. So the speed can't reach the rated speed.

4.Check whether there is impurity or not. Check the filter screen of the oil pump after 100kw Perkins diesel generator shout down. If there is no impurity, the operation will be normal.

5.Check replacement. After replacing the new oil pump, start the diesel generator and observe whether the tachometer is displayed at 1500r/min after the speed is raised to the standard speed. After exciter excitation, the frequency of the generator set will be displayed at 50.5Hz, at time, if reduce the speed, the frequency will be displayed at 50Hz. Then the diesel generator set will be able to operate normally.