There are several types of electric generators on the modern market: synchronous, asynchronous, inverter. Despite one purpose, they have significant differences, which has a direct impact on energy production. Let's look at the features of each type of generator.
In the store you need to clarify what type the generator belongs to: synchronous or asynchronous.The most important thing about synchronous generators
A synchronous type electric generator is an aggregate operating in an electric power generation mode. Its feature is the equal frequency of rotation of the magnetic field of the starter with respect to the frequency of rotation of the rotor. The magnetic poles together with the rotor generate a rotating magnetic field, which after passing through the starter winding forms an electromotive force in it. In this type of generator, the rotor is an electromagnet or a permanent magnet.
This design feature gives the synchronous generator such advantages as:
- almost complete immunity to short-term or starting overloads;
- higher quality current with stable voltage is generated;
- the generated voltage has a correct sine wave.
The main disadvantage of synchronous generators is their susceptibility to moisture and dust.
Synchronous type generators are recommended to be used if it is necessary to power devices with a high starting current, for example, pumps, circular saws. Power plants of this class are also desirable for connecting household appliances.
The main thing about asynchronous generators
An asynchronous type mobile power plant is an engine that uses braking mode to operate. This means that the rotor and the magnetic field of the starter turn in the same direction, but with a certain lead. A rotating magnetic field cannot be reconfigured, which is why the output frequency and voltage always depend on the rotor speed.
The advantages of asynchronous class generators are:
- high resistance to short circuits;
- the presence of automatic adjustment smoothes power surges;
- a clear factor is at the level of 2%, due to which energy is generated without emission of harmful components;
- when energy is generated, a small amount of heat is released.
The main negative nuance of asynchronous power plants is that they do not tolerate inrush currents.
Asynchronous type is recommended for connecting electric welding, as this guarantees a more even seam. They are resistant to moisture and dust and therefore can run smoothly at various enterprises, construction sites, and the street. Devices for which voltage and current frequency do not play an important role should be connected to asynchronous power plants.
Both synchronous and asynchronous generators are sold in stores.What are the features of an inverter generator?
An inverter type generator is a mechanism in which current is generated using an internal combustion engine, and then it is sent to power electronics, where it is transformed into a constant one and charges the built-in battery. After that, direct current must be transformed into alternating current. To do this, there is an inverter in the circuit after the battery, which generates 220 V at the output of 50 Hz at the output.
The advantages of this design are more economical fuel consumption, because the generator may not maintain the same shaft rotation speed. In addition, the speed may be low, but this will be enough to fully charge the battery. And the lower the rotation speed, the less the generator consumes fuel. The inverter system allows you to get a stable level of electricity, and therefore, additional measures of equipment protection will not be needed.
Inverter generators are considered the most economical, as they are able to adapt to the actual load. If it is small, then the generator independently switches to the economical operation of the engine.
Among the disadvantages of an inverter generator, it is worth noting the battery. If it breaks, it will not be possible to repair the generator, and you will have to replace it with a new one. It should also be noted the high cost of the inverter type generator. You will have to pay twice as much for it than for a synchronous or asynchronous type.
It is necessary to connect highly sensitive equipment: computers, microwaves, boiler equipment, modern audio and video equipment.
As a result, it turns out that to connect most of the household appliances it is worth using synchronous generators, it is recommended to buy asynchronous models to connect the equipment, and for sensitive devices you will have to buy an inverter power station.