How are Diesel Generator Sets Classified

Diesel generator set is an indispensable power generation equipment for modern production enterprises. Do you understand that there are several classifications of diesel generator sets? Is according to what classification? Next, Dingbo Power will introduce you one by one.

1. According to the fuel classification of the engine, it can be divided into diesel generator set and composite fuel generator set.

2. According to the speed classification, it can be divided into high-speed, medium speed and low-speed diesel generator sets.

3. According to the classification of service conditions, it can be divided into land, marine, trailer and automobile diesel generator sets. Among them, land use generator sets include both mobile and fixed types. Land use units can be divided into four types: ordinary type, automated type, low noise type, and low noise automated type.

4. According to the output voltage and frequency of the alternator, it can be divided into AC generator sets and DC generator sets.

5. According to the excitation method of synchronous generators, they can be divided into rotating AC exciters and static exciters.

(1) Rotating AC exciter excitation system, including AC exciter static rectifier excitation system followed by brushless excitation system.

(2) Static exciter excitation system, including voltage source static exciter excitation system, AC side series composite voltage source static exciter excitation system, and harmonic (or fundamental) auxiliary winding excitation system.

6. Classification by purpose

(1) Common gensets

This type of generator set operates year-round and is generally located in areas far from the power grid (or city power) or near industrial and mining enterprises to meet the construction, production, and living electricity needs of these areas. In areas with rapid economic development, because the construction of the power network cannot keep up with the needs of users, common diesel generator sets with short construction period are set up to meet the needs of users. This type of generator set, it has a large capacity and provides continuous power supply for non constant loads. There is no limit on the duration of continuous operation, and it allows for 1 hour of overload power supply time every 12 hours. The overload capacity is 10% of the rated output power. Due to their long operating time and heavy load, this type of genset has its allowable power adjusted to a lower point relative to the maximum power of the genset.

(2) Backup genset

Under normal circumstances, the electricity required by users is supplied by the mains power. When the mains power is cut off or interrupted due to other reasons, a generator set is set to ensure the basic production and daily life of users. This type of generator set is permanently installed in important electricity consuming gensets such as telecommunications departments, hospitals, industrial and mining enterprises with tight electricity supply, airports, and television stations. This type of genset maintains a standby state at all times and can provide continuous power supply to non constant loads.

(3) Emergency genset

For electrical equipment that may cause significant losses or personal accidents due to sudden interruption of mains power, emergency generator sets are often installed to provide emergency power to these equipment, such as fire protection systems in high-rise buildings, evacuation lighting, elevators, control systems for automated production lines, important communication systems, and medical equipment undergoing important surgeries with patients. This type of genset should be able to quickly start and operate in the event of a sudden interruption of mains power, and provide stable AC power to the load in the shortest possible time to ensure timely power supply to the load. This type of genset requires a high degree of automation.

The above is the content of diesel generator set classification introduced by Dingbo Power. We hope it will be helpful to you. If you are interested in diesel generator sets, please contact us by email dingbo@dieselgeneratortech.com.