Stabilizer for a refrigerator with an inverter compressor LG
This technique is arranged in such a way that its nodes and mechanisms work perfectly only at normal tension. The differences represent a huge danger, especially for the compressor, and the most sensitive detail is the fee. In stable tension need old models. They do not have protection against premature launch. When the output voltage reaches the limit values, the stabilizer turns off the power and delay the time before the next compressor.
Racing in the power grid adversely affect the work and condition of refrigerators. It is extremely desirable to use a stress stabilizer for the refrigerator.
When the voltage stabilizer is needed for the refrigerator
As you understand, the stress stabilizer for the refrigerator is not always needed and not all. Most often, especially if you live in a big city, in a fairly modern apartment, you will most likely not need.
Usually, voltage problems exist where there is not well monitored by the state of the power grid, behind the balance of load distribution and simply where old or low-quality wiring.
You need to determine if you need a voltage stabilizer simply measuring the voltage multimeter in the outlet to which the refrigerator is planned. Normal indicators will be within 198-242 V, these are the maximum allowable voltage deviations that can be in a single-phase electrical network according to paragraph 4.2.2 from GOST 32144-2013. Almost all modern refrigerators operate ranging from 220 to 240 volts, according to their passport data.
How to choose a voltage stabilizer for Home, Refrigerator, TV and Air Conditioner | English
Best of all, of course, do such measurements periodically, at different times of the day, days of the week and even at different times of the year, t.to. Even if at the moment the voltage in the outlet is put up to normal, it is not necessary that it always happens, because there are many factors that can cause drawdown or horse racing.
In addition, there are some more indirect indicators for which you can determine that with a voltage in an apartment or house, something is wrong:
First of all, noticing such deviations in the work of electrical equipment or simply finding too low or high voltage in the network by a multimeter, you must contact your energy supplying company and achieve the restoration of the required parameters of the incoming electric current.
Unfortunately, the process of this, as you understand, unprecedented, especially if we are talking about low or high voltage in a private house or in the country area, therefore, for some time you need a voltage stabilizer to protect your refrigerator, allow It works in normal mode.
What is better. a network filter or stabilizer?
Simple network filters are built on inductively capacitive single LC-cascades. complex executions are implemented on semiconductor varistors with auxiliary elements of the electrical circuit. They convert the energy of “parasitic” pulses into the heat dissipation. Network filters “sharpened” to eliminate only low-power short-term (duration of 10-6-10-9 c) industrial and thunderstorm pulses on the LPP entering the network 220 V. Also, they can also cope with the hindered interruptings from the operating power tools or, for example, the electric generator. Such protection acts efficiently until “Thunder is not born”. “Networks” are not able to prevent the incoming voltage drops that occur themselves for a long time. This is due to the use for smoothing stored energy capacitors, the capacity of the electrical charge of which is limited.
Stabilizers work on a fundamentally different method of equalizing the voltage, continuously adjusting the “plug” of the network voltage within the boundaries of the values of ~ 220 V ± 5%, 50 ± 0.2 Hz, due to changes in the current in the electrical acceptor. Therefore, they are preferable for use in worn power grids with unbalanced load and low-quality electricity.
Best Model with Double Converter
Here is the best stabilizer with a double converter.
This model is characterized by a high percentage of efficiency and accurate stabilization with a minimum error. The device is distinguished by the presence of a coercive cooling system. Due to this, the production period increases.
The model is characterized by stable operation without interference, as well as reliable protection against short circuit and voltage jumps.
- Efficiency. 97%;
- Format of the incoming signal. sinusoid without curvature;
- accommodation. wall-mounted;
- cooling. forced;
- Protection. IP20;
- permissible air humidity. 90%;
- The permissible temperature of the air indoor is 5-40 0 s;
- Sizes (SHCHG). 300x180x96 mm;
- Weight. 3 kg.
- use of use;
- no interference;
- withstands high loads;
- does not overheat;
- Ease of controls;
- The possibility of observing the change in load through a high-quality monitor;
- Quiet work with a small load;
- the presence of a coercive cooling system;
- fast response;
- Wide range of incoming voltage.
Voltage in the network
To find out the voltage in your home power grid, the easiest way is to use the multimeter, measuring and recording the results obtained in different periods of time. The more accurate you will learn how minimal and maximum voltage can be in an apartment or house, in addition, measure how intensively it changes, whether there are sharp jumps or changes are enough smooth, the more suitable for you the model of the stabilizer can pick up.
External refrigerator protection from voltage drops
To combat power failures, devices such as a power filter, voltage control relay and voltage stabilizer are designed. They are not equivalent and differ in the level of protection provided. Consider their level of protection Read more.
Network filter neutralizes high-frequency interference and protects from high-voltage emissions. In chronic deviations and sharp networks, it is useless.
Voltage control relay (RKN) is intended to shut down the load when the network voltage output from certain boundaries. The data values of the boundaries are set by the user and depend on the permissible range of input voltage of protected technique. In the case of a “bad” power grid (periodic oscillations with a large amplitude), the operation of the RKN will become a permanent phenomenon. For the refrigerator, frequent alternation of shutdown and inclusion is undesirable. it reduces its service life and complicates operation!
Voltage stabilizer for the refrigerator adjusts the incoming voltage from the network and brings its value to the nominal. With critical deviations, the device works like RKN and de-energizes the load. Some stabilizers are additionally equipped with filters, which allows them to suppress high-frequency interference.
We illustrate differences in the operation of the network filter, the voltage control relay and stabilizer using a practical example.
It is given: a refrigerator with a permissible input voltage of 210. 240 V and power grid with permanent drops from 180 to 250 V.
Task: to organize the safe work of the household appliance.
Network filter is not suitable for solving this task. It will not respond to a decrease (increase) of the network voltage and will continue to broadcast it on the entrance of the refrigerator. Outcome: compressor breakdown.
RKN in our case must be configured as follows: Lower limit 210 V, upper. 240 V. Voltage fluctuations in the network are wider than the indicated boundaries (under the terms of the example), therefore, the relay will periodically work and turn off the voltage. Outcome: Frequent recesses in the power supply of the refrigerator, which at least disturb the temperature regime inside the device and will lead to the spurrant of stored products.
The voltage stabilizer for the refrigerator can cope without turning out and will depend on the situation or lower the input voltage value. Outcome: The refrigerator works correctly, despite the deviations in the external network.
Now mentally move the specified refrigerator to the conditions of constantly reduced voltage, for example, to a power grid with a stable value of 200 V. The relay in this case is useless (like the filter), and the stabilizer will be able to “pull up” network parameters to values permissible for the refrigerator.
From the above example, it can be seen that under conditions of low-quality network electricity, only the voltage stabilizer for the refrigerator provides the most complete protection.
There are various types of voltage stabilizers and not all stabilizers are equally effective when working with a refrigerator!
Characteristics of the right choice
The passport to the device is prescribed the main technical specifications. When selecting an instance, you should pay attention to the following parameters:
- the power of the stabilizer, which must be several times the power of the refrigerator served;
- The operating range of the incoming voltage necessarily overlaps the deviation of the voltage;
- The speed of operation should be sufficient to prevent the sensitive electronics breakage when the voltage rolls.
Taking into account the cost of the product and the popularity of the brand, you can choose a stabilizer model with the optimal ratio of “price-quality”.
Usually the power of the stabilizer (complete) manufacturers indicate in Volt-amperes (B ∙ A), and the refrigerator (active) in watts (W). To competently produce calculations, you need the value of the power in watts to divide on the correction coefficient Cos φ, for the refrigerator it takes 0.65. As a result, we obtain the full capacity of the refrigerator in B ∙ A. Since it contains an electric motor in the compressor, it is also required to consider large starting currents at the start of the aggregate. Consequently, the total power must be increased at least 3 times.
The operating voltage range is one of the most important characteristics of the acquired models. It is necessarily spelled out in a passport or other accompanying documentation for heading. Usually in private houses, country cottages and cottages set stabilizers with a working range of 130-270 V.
In cheap models that have not passed certification, manufacturers usually save on safety. In the functionality of stabilizers, there are no elementary levels of protection against overvoltage, overcurrent or overheating. This may lead to premature failure of refrigeration equipment, electric shock and fire.
The low inertia of the activation of the stabilizer will save the sensitive components of the electrical part from the electrical breakdown and brave. Acceptable is the response time of 10-20 ms. Such speed provide modern stabilizers, with the exception of old latra-based electromechanical models.
Relay models in the market of stabilizers distinguishes “Democratic” product price. In the segment of inexpensive products there are also many electromechanical stabilizers. System models at cost are superior to relay, which is justified by the use of a variety of security elements. Frank “Chinese” will cost in 2000-4000 ᵽ, the cost of certified models begins from 6000 ᵽ.
In the segment of Russian voltage stabilizers, on equal competing products of Chinese production (“Resanta” with production in the PRC), domestic. CJSC “Tensi tehno”, g. Tula;
The optimal ratio of price and quality is the products of SSC (“Energy Technologies”, G. Moscow).
What power stabilizer take to the refrigerator
The main technical characteristics, including power, are written in the passport. But to calculate the required power, we need not consumed, and complete power (in A). This value is an essential characteristic when choosing a stabilizer.
To get its value, you need active power (specified in the passport) to divide by 0.65. But this is not enough. Since the refrigerator uses significant launchers, the value must be multiplied by the coefficient 3.
Let’s analyze example. Suppose the passport states that the power consumption of the refrigerator is 0.15 kW. Then full power is equal to one hundred fifty divide on zero sixty five and we get 230,76. This value is multiplied by 3 and get 692.3 via. Rounded the value to the biggest and get 700 V. So, you need a stabilizer that, with the lowest voltage at the output, give 0.7 kW.