On March 20, 2007, the "Liuhe" wheel of China Shipping Group caused a cabin fire in the waters of Shanghai Port due to the failure of the generator set. The direct economic loss was about 700,000. The shipwreck caused by the failure of the generator set on the ship was also common in foreign countries. The casualties are very heavy. If the generator set fails in the sea, it means a disaster.

        The ship generator set is one of the important equipments in the ship equipment. It mainly supplies power to the ship power system. The dynamic performance and static performance of the ship generator set directly affect the stability and reliability of the ship's electrical equipment work. Therefore, it is essential to carry out a series of inspections and repairs before the ship goes to sea.