Types of diesel generator sets (DGU)

When choosing a generator for a home or business, first of all, you need to focus on the power of the connected current consumers. But when choosing, not only the maximum power indicator is important, but also the operating conditions.

That is, how often will you use the reserve, will it be installed outdoors or indoors, will it need to be transported or will it be a permanent installation, is it necessary to install a new electrical wiring network, or will what you have be enough for how much will it work loudly and how to properly divert exhaust gases? This whole set of questions relates to a diesel generator.

In this article, we will get acquainted with the types of diesel generator sets, their scope and installation rules.

What types of diesel generators are there

The diesel generator set is a powerful diesel engine with a liquid cooling system, mounted on a rigid, steel frame with a capacious fuel tank, a power generator, an exhaust system and an automation system (optional).

Diesel power plants differ in several ways:

construction type (open and closed);
phasing;
power indicator;
launch type;
cooling system.

Open-type diesel generator sets are mainly installed in enclosed spaces. If there is a need to still install it outdoors, you will need a fairly large number of additional installation conditions and the main thing that you cannot get rid of is the too loud sound of its operation. Therefore, an open-type generator takes root well in factories, in semi-basement non-residential premises, so as not to interfere with others. The advantage of this design is that there is access to all generator nodes. And the minus of this design is that it cannot be in the open air, with different temperature and weather conditions.

The closed-type diesel generator is equipped with a metal casing. Inside there are several layers of insulating (noise-damping) material, all the necessary outputs and inputs are equipped, there is an external control panel. This arrangement is more practical and convenient in most situations, especially if the installation is carried out in places with a high temperature difference and a variety of weather conditions. And most importantly, the generator can be installed near residential buildings.

By the number of phases, there is a division into single-phase and three-phase power plants. The number of phases depends on your electrical equipment. If current is needed for three-phase electrical appliances, then you definitely need to choose a generator with a phase of 380V, because a single-phase one will not give you the desired voltage.

In turn, a three-phase generator is able to power both 220 V and 380 V electrical equipment; for this, it has two sockets with different phases on the panel. However, be prepared for the fact that when connecting devices to 1 phase, you will receive only a third of the generator power for them. If the power is 12 kW, then you will remove it completely only from a three-phase outlet, and from a single-phase one you will get only 4 kW. You also need to calculate the connection well in order to avoid such a nuisance as phase imbalance. Therefore, if there is no need for a three-phase power supply, it is better to take a power plant for 1 phase. But there are stations in the world with combined power supply that can produce high power both at 380V and 220V, which is indispensable in the case of large-scale construction projects where there is a need for separate power supply.

In terms of power, diesel power plants are divided into:

Portable. Power rating from 4 to 15 kW. Their design is mobile, adapted for transportation. Equipped with high speed air-cooled motors. Calling such a generator a full-fledged DGU is wrong, but they can be an excellent price solution for a country house or a small facility;
Stationary diesel generator - a plant for supplying electricity in standby or uninterrupted mode with a high power rating. Basically, they are not adapted for transportation, but models of a separate capacity can be installed on a cargo trailer. The type of installation is diverse - indoors, outdoors, in a container. Since the stations have high power, they are equipped with low-revving liquid-cooled diesel engines.

There are types of launch:

Manual - start by handle or lanyard. This design is used only in small diesel generators. In a diesel generator set, manual start is implied by manual control on the controller panel of the plant itself.
Electric starter - start by turning the ignition key or pressing the starter button. Very handy and easy as manual start may fail in cold temperatures.
Autostart – independent switching on and off of the station in case of power failure, any accident or its switching on.

Cooling of diesel stations can be air (forced blowing of the engine with air flow) and liquid. In liquid cooling, coolant circulates through the mechanism. This method keeps the heat balance stable much better than air.

Scope of application of diesel generators

Since diesel generator sets are extremely hardy and powerful, their scope is aimed at production, construction, business structures. However, in a country house, it is quite advisable to install a diesel generator if you need power and regular switching on of the reserve.

The most common areas where diesel generator sets are used:

Construction sites. Construction is often a new facility, not connected to a fixed network. In this case, the DGU acts as the main power source for all involved electric tools. The best choice is a powerful generator in a protective casing. Concrete mixers, hammer drills, grinders, various saws, grinders, jackhammers and various construction equipment are connected to it. Even if the construction site is electrified, it is still possible for a power outage to occur. Then the generator is needed as a backup. Since the construction site uses diverse equipment, and the power supply there is not only 220V, but often 380V, it is recommended to pay attention to stations with combined power supply. Thanks to them, you can get the same power when powered by 380V and 220V.
Private houses and cottage towns, small settlements. For a country house, DGUs can be installed both indoors and outdoors. The main phase of the generator is 220V. Since three-phase stations cannot always realize themselves, if in the house, basically, all appliances are powered from a conventional network. But not everyone can buy an expensive diesel engine. And in this sector, open-type light diesel generators or closed-type air-cooled mobile stations are often used.
Productions and factories. Often, production in a shop or factory must be continuous, and its failure will lead to a loss of a lot of money. This suggests that the DGU should not only be powerful, but also have a high quality of both the engine and the entire filling. The maintenance process is also important. Therefore, industrial power plants are installed at such facilities.
Hospitals and Laboratories. In a hospital, a power outage is fraught with loss of health and even someone's life, so a good diesel generator with ATS (automatic transfer transfer) is ideal for backup power to hospitals, since it does not require your presence and ensure uninterrupted power supply at the site. Laboratory equipment also requires a continuous supply of current. But in this area, the installation of one station, unfortunately, cannot be dispensed with. Since they have a startup time (often up to a minute), you need to use additional equipment like UPS .
Offices and government agencies, educational institutions. Lighting and space heating, the operation of computer equipment - this is what the generator in the institution should provide if the electricity is turned off. As a rule, a single-phase unit (220V) may suffice here, but the presence of automation is mandatory, which smoothes the output voltage. For computer devices, the quality of the current and the smooth voltage without failures are very important.
Mining. In the extraction of coal, peat, oil and other minerals, open or underground, mobile generator sets are often used to connect equipment. Since the extraction of any resources takes place in places quite remote from civilization and communication habitual to mankind, generators (DGS) have a special layout, sufficiently high strength and reliability of the nodes so that the extraction work does not stop. In this area, power plants below the industrial type are used.

In the modern world, there is still a fairly large list of areas where diesel power plants can be used. And with the development of internal combustion engines, the quality, reliability and efficiency of engines grows significantly, and the price becomes more affordable for any buyer. So today it is one of the most popular, reliable and optimal solutions for automating comfortable work or pastime when the main power supply is turned off.

You can choose and you can buy a diesel generatorat 130.com.ua with delivery in Ukraine.

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