Basic Knowledge of Demagnetization in Diesel Generator Sets 2

This article continues to explain the basic knowledge of diesel generator set users, such as demagnetization, power reduction, frequency instability and other faults.

1.If the frequency of a diesel generator set is stable but the voltage is unstable, does the problem lie in the engine or the generator?

Answer: The problem lies in the excitation voltage regulator of the generator.

2.If the frequency of a diesel generator set is unstable, what are the main problems?

Answer: If the frequency of a diesel generator set is unstable, the main problems are that the speed of the diesel engine is unstable, the unit vibrates too much during operation, the fuel filter fails, and there are malfunctions in components such as the fuel pump of the generator set.

3.What are the crucial points that must be noted when using a diesel generator set?

Answer: (1)The lubricating oil level must be appropriate, and the oil pressure should be within the appropriate range.

(2)The frequency should be stable at around 50HZ, and the voltage should be stable at around 400V.

(3)The cooling water tank must be filled with sufficient water and operate within the allowable temperature range.

(4)The three-phase current should be within the rated range.

4.Which main components need to be replaced or cleaned after a diesel generator set has been used for a period of time?

Answer: Diesel filter, oil filter, air filter. Some units also have a water filter.

5.What are the main advantages of a brushless generator?

Answer:(1) The brushless generator eliminates the slip rings and carbon brushes, has no spark high-frequency interference, no problems of wear and tear of the slip rings and carbon brushes, and eliminates the need for maintenance of the carbon brushes.

(2)It has anti-radio interference.

(3)It reduces the risk of loss of excitation faults. It has high reliability, simple maintenance, and is easy to realize the intelligent automation control of the power station.

6.What is the general insulation class of domestic generators?

Answer: Domestic machines are of class B; Marathon brand machines, Leroy-Somer brand machines, and Stamford brand machines are of class H.

Guangxi Dingbo Power Equipment Manufacturing Co.,Ltd was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Dingbo has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to [email protected].