The diesel generator set, which belongs to a type of power supply of a self generating power station, and is an independent power generation equipment. At present, diesel generator sets are widely used in many industries. As a backup power supply, diesel generator set has been favored by all manufacturers.
We can divid them into the following categories of diesel generator sets, the diesel generator set according to the automation function can be divided into basic type, self start, automatic control of diesel engine generator sets.
1. Basic diesel generator sets
This type of diesel generator sets are the most common, which is composed of diesel engine, water tank, muffler, synchronous AC generator, control box, coupling and chassis.
2. Self starting diesel generator sets
This type of diesel generator sets are based on the basic unit of the automatic control system. Them have automatic switching function, when the power is suddenly cut off, set to start automatically, automatically switch the automatic electric power switch, and automatic shutdown functions; when the unit oil pressure, oil temperature is too high or too low, the cooling water temperature too high, can automatically send out sound light alarm signal generator; when exceeding the speed limit, automatic emergency stop protection.
3. Microcomputer control automatic diesel generator sets
Automatic control of this type of screen three-phase diesel generator sets by the improved performance of the diesel engine, brushless synchronous generator, automatic fuel supply device, automatic oil supply device, cooling water automatic supply device composed of ATS, ATS can control the screen using automatic PLC programming, them have automatic start, automatic switch, automatic operation, automatic input and automatic shutdown function, and are equipped with a variety of fault alarm and automatic protection device.
Second, according to the classification of different purposes, can be divided into standby generator sets, commonly used generating units, combat generating units and emergency generator sets.
1. Standby generator sets.
Under normal circumstances, the power required by the user is supplied by the city power supply, and when the utility model is used for limiting the power supply of the utility model, the generator set is arranged to ensure the basic production and the life of the user. This type of generator set is located in the city of electricity supply and demand of industrial and mining enterprises, hospitals, hotels, banks, airports and radio stations and other important electricity units.
2. Commonly used generator sets.
This type of generating units are running all year round, usually located in areas far away from the power grid (or electricity) in the vicinity of the region or industrial and mining enterprises to meet the construction, production and living electricity in these places. At present, in the area of rapid development, it is necessary to build a short cycle of common diesel generator sets to meet the needs of users. This kind of generator sets have larger capacity.
3. Preparing for generating units.
This kind of generator set is the power supply for the civil air defense and the national defense facilities, usually has the nature of the standby generator set, but after the wartime electric power is destroyed, it has the character of the common generator set. This type of generating units are generally installed in the ground, with a certain degree of protection.
4. Emergency generator sets.
The sudden interruption of electricity will cause a major loss or personal accident of electric equipment, emergency generator set of the equipment of emergency power supply control system, fire control system, such as high-rise building evacuation lighting, elevator, automatic production line and communication system. This type of generator sets need to install self starting diesel generator sets, the higher the degree of automation requirements.