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The autonomous electric energy source often is need for owners of country sites where interruptions in electricity - not rarity. However, that providing the dwelling of 220B was not too expensive, it is necessary to choose the corresponding generator correctly.
Producers offer wide choice of generators, each of which is called to solve certain problem. Therefore there is classification which divides units into several groups. Similar division allows to distinguish devices on several signs.
Type of the used fuel
The generator, gas-powered is most widespread. The unit has the small sizes, weight, can be two- or four-stroke (more powerful option). To find fuel does not represent special work, - gasoline always near at hand. The generator well is suitable for emergency connection of tension on short period of time. However for uninterrupted giving of tension it is not recommended to use the petrol device. One of the reasons – rather fast wear of parts because of high engine speed. Also it is worth remembering that constant use of gasoline as fuel – pleasure not from cheap.
The diesel generator well is suitable for constant use. It is the unit consuming approximately in 1.5 less fuels than petrol. The second advantage – durability: its parts are not so subject to wear, as at petrol "colleague". Plus, the diesel is unpretentious in service. The only shortcoming – high cost. But at continuous operation of expense pay off quickly. One more kind of autonomous sources of current – the gas-driven generator. Its main advantage – profitability. Such unit can use both from the main pipeline, and the liquefied gas delivered in cylinders. The additional advantage of the gas-driven generator – ecological security.
Device of the generating block
The generator can be synchronous or asynchronous. The unit of the first type best of all is suitable for power supply of the devices having big starting current. For example, it can be various electric tools or the fridge. The synchronous generator well maintains peak loadings therefore the current developed by it is considered "cleaner". Asynchronous devices cheaper, badly hold peak loadings, however are resistant to short circuits. Design of asynchronous generators simple thanks to what such units have good maintainability. Electric generators also I have difference by quantity of phases: can be one - or three-phase. It is reasonable to buy the last version of the device in the presence in the house of the corresponding consumers. Any three-phase unit can work also with single-phase network. However among modern household appliances the three-phase devices are big rarity therefore buy the powerful single-phase generator more often.