Relay voltage stabilizer: advantages and features of application

Stabilizers are devices, which make it possible to save the equipment from failure in the event of sudden fluctuations in the network voltage. They smooth out too high and low values, supporting the operation of the equipment at the required level. There are three-phase stabilizers, servo and relay. For domestic use, the latest models are most often chosen. What are their features and what parameters to pay attention to when buying, we will tell in the material.

principle of operation

The relay stabilizer is a transformer plus a block of power relays, as well as the management system, which controls it. When there is a voltage drop, turns are switched like this, to stabilize the oscillations. Most often, relay stabilizers are used at home and in the office as protection for household appliances. They provide a wide range of input voltage and maintain output indicators as accurately as possible. True, due to step switching of turns to reach the ideal mark 220 In any case, it is impossible, there will be a deviation of 5-10%. Instead, triac and servo drives "" give a discrepancy with the ideal within the limits of only 1%. This feature is important for connecting sensitive equipment.

To understand, whether a relay voltage stabilizer is suitable for you, you need to analyze the conditions, in which you plan to use it and calculate the required power. Considering the budget cost of such a device, a popular choice for protecting equipment insensitive to minimal voltage fluctuations. It can be a microwave oven, boiler or refrigerator. Instead, it is better to choose another type of device for high-precision devices.

Advantages of relay stabilizers

The price is one of the reasons for the popularity of this type of device. The relay stabilizer is relatively cheaper, than other options. You can order such a reliable and inexpensive regulator in the Allo assortment in Kharkiv. The cost will depend on the power and number of turns, that adjust the voltage. Other advantages of such equipment:

1. Good speed of work, reacts to fluctuations in 0.1–0.15 s.
2. Simple design and clear algorithm, and therefore, inexpensive maintenance. Actually, except for relay wear, there is nothing more to break in the regulator.
3. Availability of protection against short circuit and overvoltage.
4. Insensitivity to sub-zero temperatures and hot conditions.
5. An almost perfect sine wave at the output.
6. High efficiency (coefficient of performance).
7. Relatively low price.

Disadvantages of such devices include noisy operation, errors in maintaining the output voltage at the level of 5–10%, relay wear and lack of power reserve. Choosing a stabilizer, we recommend paying attention to the devices, that 30% more powerful, than the expected load on them. In order not to make a mistake and choose the most functional and reliable regulator, it is better to study the key characteristics of the devices in detail.