In our life there are more and more different household appliances. But their performance depends on the availability of electricity, without which they become useless objects. The constantly increasing number of devices that consume electricity affects its quality, namely, the voltage index. Such changes are bad for the work of all electrical appliances. Some of them simply burn, and others - badly or not at all will not work.
To avoid sudden power surges in your wiring, it is recommended to install stabilizers. But, since this is a rather expensive device, you should make sure that it is necessary before making a purchase.
Principle of operation of the voltage regulator
According to all norms in the wiring should be 220V, but this is not true. Depending on the distance from the transformer substation and the number of electrical devices included in the network, this indicator is sometimes higher or lower.
The stabilizers can help to avoid problems in the operation of electrical appliances. Their work is as follows:
- electronics monitors the deviations in the voltage indicator when entering the device;
- after the fixed change, by switching the turns of the transformer, if necessary, raises or lowers it;
- at the output, a current with the required voltage (220V) is output.
In order for this device to work effectively, it is very important to properly connect it. How to connect the voltage regulators, you can see on the diagram.
Types of voltage regulators
There are 2 criteria by which they differ:
- Type of connection. It is determined by the electrical network available in the house. Since it is single-phase and three-phase, the voltage regulators also have the same separation.
- Principle of regulation:
- relay;
- servodrive;
- Electronic, which can be thyristor or triac.
There is also a division into household and production, based on where you plan to use the device.
How to choose a voltage regulator for home?
Which voltage regulator will be better for you, depends on what kind of electrical network you have, what devices will be connected to it, and what are the problems on your power line.
If you have a three-phase network, then you can buy transformers with the same number of phases. After all, then the voltage in the network is not 220V, but 360V, and it is designed for maintenance of powerful equipment. Most often it occurs in production or in country houses, with a large number of electrical appliances. For apartments or private houses located within the city, a single-phase voltage regulator is perfect.
By the principle of regulation the most durable, fast reacting and more accurate are considered thyristor and triac
Good quality of work and low cost is noted in relay voltage regulators. The principle of regulation in these models is based on the use of a relay to switch from one turn of the transformer to another. But due to the fact that the life of such metal parts is limited, they are less reliable than electronic ones.
If you, having been flattered at a low price, choose a servodrive stabilizer, then be prepared for a regular visit to repair services and a slow response to the problem.