diesel generator set

Diesel generator set(DGS) is an autonomous source of electricity that converts the energy of diesel fuel into electricity. It consists of a diesel engine, alternator, control system and auxiliary devices such as fuel tank, cooling system and exhaust system. The choice of diesel generator set depends on the required power, operating conditions and budget. Correct operation and timely maintenance ensure reliable and durable operation of the device.

What is a diesel generator set and why is it needed?

Diesel generator set(DGU) is a device designed to generate electricity in autonomous mode. It is a complex that includes a diesel engine that drives an alternating current generator. The generator converts mechanical rotational energy into electrical energy.

DGSs are used in a variety of areas where a reliable source of electricity is required:

• Backup power supply:DGSs are used to provide electricity in the event of a centralized power supply outage in hospitals, data centers, manufacturing plants, shopping centers and residential buildings.
• Autonomous power supply:In places where there is no connection to the power grid (for example, at construction sites, in rotational camps, at remote mining sites), diesel generator sets are the main source of electricity.
• Peak power supply:During periods of peak electricity consumption, diesel generator sets can be used to reduce the load on the power grid.
• Energy supply for special facilities:DGSs are used to supply power to military facilities, telecommunication stations and other facilities that require high reliability of power supply.

Main components of diesel generator set

The diesel generator set consists of several key components, each of which plays an important role in ensuring reliable operation of the installation:

• Diesel engine:This is the “heart” of the diesel generator set, converting the combustion energy of diesel fuel into mechanical rotational energy.
• Alternator:Converts mechanical rotational energy received from a diesel engine into AC electrical energy.
• Control system:Provides automatic start and stop of the diesel generator set, control of engine and generator operating parameters, as well as protection against overloads and emergency situations.
• Fuel tank:Designed to store a supply of diesel fuel necessary for the operation of the diesel generator set.
• Cooling system:Ensures maintenance of optimal engine and generator temperatures, preventing them from overheating.
• Exhaust system:Removes exhaust gases from the engine, reducing noise and environmental pollution.
• Frame:Provides a strong and stable base for all components of the diesel generator set.

How to choose a diesel generator set: key parameters

When choosingdiesel generator setThere are a number of key parameters to consider to ensure the installation suits your needs:

Power

Determine the total power consumption of all devices that will be connected to the diesel generator set. Both active power (kW) and apparent power (kVA) must be taken into account. It is recommended to select a diesel generator set with a power reserve of 20-30% to take into account starting currents and future needs.

Startup type

DGSs can be with manual, automatic (AVR) or remote start. Automatic start (AVR) ensures automatic switching on of the diesel generator set in the event of a power failure in the main network.

Type of execution

DGSs can be of the open type, in a casing (noise-proof) or in a container. DGS in a casing provide noise reduction, and DGS in a container provide protection from atmospheric influences and vandalism.

Engine and Generator Manufacturer

Choose diesel generator sets with engines and generators from well-known manufacturers, such as Cummins, Perkins, Volvo Penta, Leroy Somer, Mecc Alte. This guarantees high quality, reliability and availability of spare parts.

Voltage and frequency

Make sure that the voltage and frequency of the diesel generator set matches the requirements of your electrical appliances (usually 230/400 V and 50 Hz).

Fuel consumption

Fuel consumption is an important parameter that affects the cost of operating a diesel generator set. Choose a diesel generator set with economical fuel consumption.

Price

Pricediesel generator setdepends on its power, type of execution, manufacturer and other factors. Compare offers from different suppliers and choose the best option in terms of price/quality ratio.

Example of power calculation:Let's say you have the following consumers:

Total you will needdiesel generator setwith a power of at least 11.1 kW. It is recommended to choose a diesel generator set with a power reserve of 20-30%, that is, about 13-14 kW.

Maintenance of a diesel generator set: the key to long and reliable operation

Regular and timely maintenancediesel generator set– a necessary condition for ensuring its reliable and durable operation. Maintenance of diesel generator sets includes the following types of work:

• Daily inspection:Checking oil, coolant, fuel levels, as well as identifying leaks and damage.
• Weekly service:Check the battery, cooling system, fuel system and exhaust system.
• Monthly maintenance:Changing the oil, oil filter, fuel filter and air filter.
• Annual Maintenance:Checking and adjusting valves, injectors, ignition systems and other important components.

It is recommended to enter into a service contract with a qualified company such as Yuke (Shandong) Electrical Technology Co.,Ltd (voyoko.ru), who has experience working withdiesel generator setsvarious manufacturers. This will allow you to be confident that your diesel generator set will be serviced professionally and in a timely manner.

Typical faults and solutions

Despite the reliabilitydiesel generator sets, various malfunctions may occur during operation. Below are the most common faults and how to fix them:

• The engine does not start:The reasons may be different - lack of fuel, discharged battery, starter malfunction, ignition system malfunction. It is necessary to check the presence of fuel, charge the battery, check the starter and ignition system.
• The engine is unstable:The reasons may be a dirty fuel filter, faulty injectors, or air leaks in the fuel system. It is necessary to replace the fuel filter, check and clean the injectors, and check the fuel system for leaks.
• Engine overheats:The reasons may be: insufficient coolant level, dirty radiator, thermostat malfunction. It is necessary to check the coolant level, clean the radiator, check the thermostat.
• Low voltage at generator output:The reasons may be a malfunction of the voltage regulator, wear of the generator brushes, damage to the generator windings. It is necessary to check the voltage regulator, replace the generator brushes, and check the generator windings.

If serious malfunctions occur, it is recommended to contact the service center specialists.

Advantages and disadvantages of diesel generator sets

Like any equipment,diesel generator setshave their advantages and disadvantages.

Benefits:

• High reliability:DGSs are capable of operating for a long time without interruption.
• High Power:DGSs can provide electricity to even large facilities.
• Economical:Diesel fuel is relatively inexpensive, and modern diesel generator sets have low fuel consumption.
• Long service life:With proper maintenance, diesel generator sets can last for many years.

Disadvantages:

• High noise level:Diesel generator sets can create significant noise, especially when operating at full power. (solved by installation in a noise-proof enclosure or container)
• Exhaust gases:DGSs emit exhaust gases, so it is necessary to ensure good ventilation of the room where the DGS is installed.
• Regular maintenance required:Diesel generators require regular maintenance, which may entail additional costs.
• Higher cost compared to gasoline generators:Costdiesel generator setusually higher than the cost of a gasoline generator of similar capacity.

Environmental aspects of using diesel generator sets

Usagediesel generator setsassociated with certain environmental aspects that need to be taken into account. The main negative factors are:

• Emissions of harmful substances:Diesel engines emit nitrogen oxides, particulate matter (soot), carbon monoxide and other harmful substances into the atmosphere.
• Noise:The operation of diesel generator sets is accompanied by a high level of noise, which can negatively affect the health of people and animals.
• Soil and water pollution:If diesel fuel leaks, soil and water contamination may occur.

To reduce the negative impact on the environment it is necessary:

• Use modern diesel generator sets with low emissions:Modern diesel generator sets are equipped with exhaust gas purification systems that reduce emissions of harmful substances.
• Install diesel generator sets in noise-proof enclosures or containers:This will reduce the noise level.
• Ensure proper storage and transportation of diesel fuel:It is necessary to use sealed containers and avoid fuel spills.
• Carry out regular maintenance of the diesel generator set:This will help maintain optimal engine performance and reduce emissions.