To date, low voltage in the network - a very urgent problem and solve it best in one way - to purchase a voltage regulator( HV), which will protect all equipment in the house from failure. To properly select a device, you first need to understand its varieties, as well as the principle of operation of each version. Next, we will consider the pros and cons of the main types of voltage regulators for the home, namely: relay, electronic, electromechanical, ferro-resonance and inverter.
- Relay
- Electronic
- Electromechanical
- Ferro-Resonant
- Inverter
Relay
Relay or as they are called step stabilizers are considered to be the most popular for use in the home and in the country. This is due to the low cost of devices, as well as high accuracy of regulation. The principle of the relay model is to switch the windings on the transformer using a power relay that operates in an automatic mode. The main disadvantages of this type of SN are a step change in voltage( not smooth), distortion of the sinusoid and limited output power. However, judging by the reviews on the Internet, most buyers are happy with the devices, becausethe price is several times less than the more advanced models. The representative of the relay-type stabilizers for the house is Resanta ASN-5000N / 1-C, which you can see on the picture below:
Electronic
Electronic SN can be triac and thyristor. The principle of the first is built on the switching between windings of an autotransformer with the help of a triac, so this type of voltage regulators has a high efficiency and a fast response to triggering. In addition, the triac models work silently, which is another plus of the HF of this variety. As for the thyristors, they also proved themselves well and are popular in everyday life. The only drawback of devices of the electronic type is a higher cost.
Electromechanical
Electromechanical HF is also commonly referred to as servomotor or servo drive. Such stabilizers work due to the movement of the carbon electrode along the windings of the autotransformer due to the electric drive. Electromechanical devices can also be used to protect household appliances in the home, apartment and dacha. The advantage of this type of stabilizers is low cost, smooth voltage regulation and compact dimensions. Of the minuses, you can identify increased noise during operation and slow performance.
Ferro-resonance
The principle of operation of such SNs is based on the voltage ferro-resonance effect in the capacitor-transformer circuit. This type of protective devices is not very popular among consumers due to noise in operation, large dimensions( and, correspondingly, significant weight), as well as the lack of the ability to work with overloads. The advantages of ferro-resonance stabilizers are long service life, accuracy of adjustment and the ability to work in rooms with high humidity / temperature.
Inverter
The most expensive type of voltage regulators, which are used not only in the home, but also in the production. The principle of operation of inverter models is the conversion of alternating current into a constant( at the input) and back to an alternating( at the output) thanks to a microcontroller and a quartz generator. The undoubted advantage of inverter CH with double conversion is a wide range of input voltage( from 115 to 290 volts), as well as high speed of regulation, noiseless operation, compact size and the availability of additional functions. As for the latter, inverter-type HFs can additionally protect household appliances from overvoltage, as well as other interference from the external electrical network. The main disadvantage of the devices is the highest price.
You can find out more about the varieties of SN on the video below:
Here we have considered the main types of voltage regulators. I would also like to note that there are such types of HF as single-phase and three-phase. In this case, you must choose a model, depending on what voltage you have on the network - 220 or 380 Volts.
