It’s hard to imagine modern life withoutelectricity. This applies to the work of ordinary household appliances in the house, and the functioning of enterprises, factories and clinics. It’s scary to even imagine what will happen if the power supply is completely turned off in one city.
Many organizations try to save money.Square or move out of town. It is known that outside the city limits there are cases of electrical power failures. But usually it does not frighten the company, since the problem is very easily and simply solved. Three-phase generators come to the rescue.
Different tasks solve different devices.Depending on them, choose a three-phase generators for gasoline or diesel fuel. This is not the devices that save. Devices must be manufactured by a reputable manufacturer to prevent falsification.
Gasoline Generators
Petrol units are used everywhere. This is the sphere of construction, industry, trade and so on. In general, wherever electrical power is needed.
Buying three-phase generators, you should rememberthe need to ensure loads on different phases. Also, the difference between electrical power should be maintained, which should not be higher than twenty-five percent.
Gasoline units have their single-phase outputvoltage of 220 V and 50 Hz. This, of course, makes their opportunities even wider. But you need to understand that the power of electrical devices should not be higher than a third of the output power of the engine. Otherwise, a phase mismatch will occur, and the equipment will not start.
For modern production to work properly, it must be installed such equipment.
Diesel Generators
To provide electricity to industrialfacilities, are also used three-phase diesel-type generators. This device is installed for an autonomous source providing electricity to industrial facilities operating at full capacity.
Design
The diesel generator operates by converting the rotational energy of the crankshaft into alternating current.
- Pistons start moving from the crankshaft.
- Through the movement of the rotor is transmitted energy.
- As a result, an alternating magnetic field appears in the winding, which is converted into an electric current.
To obtain such a result, the following mechanisms should be activated:
- diesel engine, the quality of which depends on the duration of the three-phase power plant - generator manufacturers usually use the aggregates of large companies;
- systems for motor operation, including fuel supply, liquid cooling, air supply, and others;
- synchronous and asynchronous alternator;
- various automatic devices to control the on and off of the motor, power, and so on;
- frame to perform the task of the supporting structure.
The three-phase generator circuit is as follows:
Choosing a three-phase electric dieselstation, special attention is given to the engine. Best performance will be achieved with turbocharged and air cooled engines. These engines are not the most expensive, but they need to be carefully maintained.
How to choose a three-phase voltage generator
Choosing a suitable unit, it is necessary to pay attention to the quality of individual parts and to the level of protection of the device against electric shock.
As for the engine, in this case it is better not to experiment with Chinese engines. It is better to prefer English Cummins, Perkins, German Deutz or our YMZ or MMZ.
Alternator may have differentprotection against electric shock. The coefficient is indicated on the label. If there is a fifth category, then there is no possibility of penetration. The fourth means the maximum coefficient, indicating the impossibility of penetration at any angle.
Three-phase generator can be performed in different ways. These types are used depending on weather conditions and mode of operation.
Подбирая трехфазный генератор, обращают внимание and on the manufacturer. To make the right choice, of course, you need to consult with experts so that they choose a model that satisfies all requests in electricity.
Power calculation
Properly calculate the power yourself will be very problematic. Before choosing a suitable device, consider:
- active load, that is, the ratio of all needs for stable operation;
- reactive load, that is, with autorun, power should be provided by a third more than in standard mode.
Pros and cons of diesel installations
Diesel three-phase generators have the following advantages:
- they are cheap to use, unlike gasoline options, and unpretentious;
- You can choose the production capacity, compensating for the lack of voltage even when the equipment is operating
- Both three-phase and single-phase devices can be connected to the device.
The downside is sometimes called the high cost of installation. However, given the savings in maintenance, as a result, work on diesel may be cheaper than on gasoline.
Three phase or single phase
Electric generators may be single phase(220 V) and three-phase (380 V). If there are no three-phase consumers, then, of course, it is worth buying the first option. Otherwise, buy a three-phase voltage generator. It can produce both 220 V and 380 V, while single-phase can only produce 220 V.
In the case of the acquisition of a three-phase generator on which single-phase consumers will also be connected, the following should be considered:
- between phases should be evenly distributed load;
- capacities should not differ on phases by more than twenty-five percent in order to avoid phase distortion;
- a single-phase consumer must have a load of no more than one third of the capacity of a three-phase unit, that is, if a three-phase station has six kilowatts, then a two-kilowatt instrument can be connected to it;
- no closure of two or more phases shall be allowed.
Three-phase synchronous generator acquire:
- to provide energy to three-phase consumers;
- power increase;
- reduce cable entry.
These versatile devices, capable of providing different loads, require responsible care.
Diesel units gain the most forsuch industrial facilities where it is necessary to ensure stable operation under tough operation and to achieve high performance. They have excellent energy efficiency and meet the necessary quality standards.
Consider individual models of three-phase generators.
Petrol unit UGB-10000ET
The device is often purchased when buildingworks, on production shops and in farms. It is perfect as a backup power source if the electricity in the central networks is cut off.
УГБ-10000ЕТ имеет четырехтактный двухцилиндровый motor equipped with air cooling. This engine has low fuel consumption, low noise and vibration, as well as a long service life.
Long service of the unit is guaranteed by a copper winding of a large section (copper itself is a high-quality product smelted from ore).
Twenty-five liters of fuel is enough to run a five-hour generator. The price of such a device ranges from 156 to 185 thousand rubles.
UGD-10000ET diesel engine
Another domestic diesel generator is also suitable for various commercial purposes.
Особенность дизеля заключается в том, что он loves a constant load. Therefore, such a unit is acquired more for permanent operation if the central electricity is absent or operates with significant interruptions.
This is also a four-stroke two-cylinder unit,having air cooling and direct injection. Also, the device is characterized by automatic decompression, combined lubrication and a manual pump. All this makes the device extremely reliable, which can be used in the most difficult conditions.
The fuel tank is designed for thirty liters and can provide ten hours of work.
Установка весит сто семьдесят килограмм без fuel, therefore, is mainly used in stationary conditions, although this generator can also move easily. Its price is somewhat higher: from 193 to 237 thousand rubles.
