Expansion of the list of household appliances with engineeringequipment inevitably increases the demands on the load in the electrical network. Along with this, the risk of device failure during power surges increases. Therefore, owners of houses with expensive home appliances are advised to purchase equipment that stabilizes the network parameters. Especially for household use, compact and user-friendly devices are produced that minimize the likelihood of such differences. The traditional solution is an electromechanical stabilizer, which has a basic functionality and a familiar interface.
Today's market offers mainly relayand electronic models of stabilizers, which have many own advantages. For example, electronic devices demonstrate a combination of high accuracy, reliability and ergonomics, although they cost more than their competitors and usually have large sizes. The most common choice is between affordable models of the stabilizer. Relay or electromechanical - which one is preferable? The first option is characterized by low accuracy of adjustment, noisiness of work and at the same time the lowest cost. In turn, electromechanical devices are capable of providing sufficient for household use accuracy and resistance to overloads. They are also sensitive to temperature fluctuations and lose to analogs in the rate of stabilization.
Pros and cons of electromechanics are due toprinciple of work. The circuit of such models introduces an automatic converter, which is located in the initial winding of the main booster transformer. Directly, the adjustment is made by manipulating the graphite brush contact associated with the servo. Therefore, the electromechanical stabilizer requires more time for reaction, sometimes noises at high loads, but it allows more accurate adjustment of network parameters.
One of the basic separations of the stabilizingequipment, which will determine the possibilities for its operation. For household use, single-phase devices are more often recommended, since they are designed for maintenance of the 220 V network. It is obvious that most household appliances are powered by the same sources. Three-phase stabilizers operate with a 380 V network and are oriented basically to operation in production conditions, in construction and industry. But at home they may be needed, albeit not in regular use. For example, to protect against overloading of electric furnaces, welding equipment or powerful pumps. One more point should be taken into account. The fact is that electromechanical one-phase stabilizers for 220 V can be network (standard models) and main. The first devices are routinely connected to the network, and the main ones are put into the central electromechanical wiring and thus serve all the devices and equipment that are used on the target facility.
Primary characteristic of stabilizersis directly related to their function. This is the value of the active power, which in the case of household models can be on average 5-7 kW. Of course, if you want, you can find a device for 9, 22 and more kW. The choice depends on which devices the particular electromechanical stabilizer should work with and in what quantity. The cumulative load of all the serviced devices is calculated, the same active power is output from it. At the same time, for safety, experts recommend adding to the calculated indicator another 20-25%.
The next characteristic is the stabilization range. This is the spectrum in which the equipment will be able to control the magnitude of the voltage, ensuring the safety of the devices. In particular, the best electromechanical voltage regulators cover the range from 130 to 280 V. Low-cost budget models operate in the corridors of the order of 140-260 V. Also important are such characteristics as accuracy and speed of stabilization. In terms of accuracy, such devices can show deviations in the range from 1.5 to 3%, and the response rate is small - 5-10 V / sec.
The Italian manufacturer who is consideredone of the leaders of the segment, but does not abandon traditional solutions. In the Vega family of stabilizers, there are models of different types of power from 2 to 15 kW - this is a line for household use and watering. The owners of these devices note the high quality of the design performance, which is manifested in the well-coordinated operation of the mechanisms with graphite rollers and the durability of the filling. In addition, if a typical electromechanical stabilizer is associated with small delays in responding to network fluctuations, Vega devices respond instantly to voltage changes. At the same time, high accuracy is maintained, and a wide range of coverage of operating values is maintained. Some models work with the limits from 123 to 314 V. However, for such advantages it is necessary to lay out a considerable sum - on average 20-25 thousand rubles.
Another good option from the categoryelectromechanical models of stabilizers. First of all, the device deserves attention thanks to a convenient fastening system - as the users note, it is enough to install it once on the wall and not to return to the mounting topic. It does not take up much space, does not overheat and practically does not make any noise. As for the performance itself, the electromechanical voltage regulator in the modification SDWII-6000-L is highly appreciated for the high speed of adjustment, accuracy and a wide range of options, among which the possibility of start delay and bypass.
You can not ignore the products and the mostpopular domestic manufacturer of stabilizers. The model under consideration is also characterized by rather attractive indicators of the accuracy of the adjustment and, as practice shows, maintains performance even under conditions of frequent voltage drops. The only drawback is the limitations of wide voltage ranges. This electromechanical stabilizer is not recommended for regular fluctuations in large spectra, since the alignment speed of the circuit parameters is only 10 V / sec.
If the main electrical parametersthe stabilizer suits, then you can go to the ergonomic qualities of the device. This concerns, in particular, the implementation of the interface through which the user interacts with the technique. The modern electromechanical stabilizer is equipped with an information display in many versions. This panel reflects all the necessary network parameters, including voltage, load index, etc.
It is also worth considering the compatibility with the targetequipment. Not all devices and technical equipment are really protected, if a voltage regulator is connected to them. An electromechanical voltage regulation device, for example, is ineffective in working with heating equipment equipped with a TEN. The same applies to technology with increased starting currents, for which voltage drops are a natural condition of operation.
In choosing a suitable stabilizer,take into account a lot of different aspects. And, perhaps, the most crucial decision will be the initial determination of the type of device. Which stabilizer is better - relay or electromechanical? If it comes to household use, then electromechanics is more profitable because of resistance to loads and accuracy of adjustment. As for relay models, they behave themselves well in cases where the adjustment of network parameters in unpredictable conditions is necessary. This also applies to wide range variations, and external influences, and other factors that may affect the operation of the device.
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