Inverter voltage stabilizers: description, device, pros and cons
Apparently, anyone, familiar with electrical engineering knows, how voltage and amperage affect the performance and durability of electrical appliances. As an example we can mention "voltage spikes", when the device works through them, it suddenly fails. To avoid such troubles, it is recommended to use voltage stabilizers.
There are two most interesting varieties on the market of such products: electronic and inverter voltage stabilizers. Many people prefer to use the first option, however, not everyone knows, that inverter products cope with their task much more efficiently.
Description and structure of the inverter stabilizer
As is clear from the above, stabilizers are designed to "equalize" voltage drops. However, certain varieties of these products do their job better, than others. Inverter models belong to this group, which are also called stabilizers with double conversion. This means, that the device has a double filter, due to which the deviations of the output current from the norm will be insignificant (close 0,5%).
This advantage is achieved due to the specific structure, as well as a very interesting principle of operation. So, classic invert stabilizer has:
- Multiple input filters.
- Voltage rectifier.
- Power corrector.
- Several capacitors.
- DC voltage converter.
- Microcontroller.
However, it is worth noting, that voltage converters and rectifiers are inverters, made on the basis of IGBT transistors. Thanks to them, there is a conversion of high values of current into norm. The energy losses are very, very small.
The principle of operation of the inverter device
Due to the specific structure, current conversion is carried out in 3 stages.
- Alternating current will turn into direct current.
- Electricity passes through the whole device.
- At the output, the current becomes alternating again.
Now it is necessary to describe this process in more detail.
- Alternating current enters the device.
- Input electricity passes through a frequency filter.
- Concealer and rectifier converts current to direct current.
- Thanks to that, that the shape of the current becomes sinusoidal, a high power factor is obtained (it is usually equal to 100%).
- There is an accumulation of current in the capacitors.
- Electricity is supplied to the inverter and quartz generator, which convert current into alternating current and spend its "smoothing".
- At the output voltage decreases to 220 V, and the frequency is up to 50 Hz.
Advantages and disadvantages
Like any other product, inverter stabilizers are not without pros and cons. Comparison of these varieties will be made with their "competitors", example, electronic devices.
Positive sides
Inverter stabilizers have a number of significant advantages:
-
Wide input voltage range - the device can operate on electricity from 105 to 300 W.
- Silence of work.
- Stable output voltage - all the "excess" power remains in the capacitors, while the output is served only the necessary 220 V.
- Quick current regulation.
- Small dimensions.
- High efficiency (more 90%).
- Filtration of high-frequency emissions and interference.
- Excellent voltage normalization accuracy.
negative moments
However, these wonderful devices are not without a number of disadvantages:
- The most significant disadvantage of these products is the price. Compared to other varieties, inverter units are much more expensive.
- Narrowing the range of input electricity values. The more devices connected, the worse the stabilizer handles the input voltage.
- Relative novelty. As mentioned above, many prefer to use proven electrical stabilizers, therefore, inverter varieties are the last thing to pay attention to.
Operation tips
Certainly, such expensive products require some care. Therefore, who recently purchased inverter stabilizers, It is recommended that you remember a few tips for use:
-
Do not be afraid of high and low temperatures. Such devices feel great at low (from -40 ° C) and high (to + 40 ° C) temperature.
- The lower the humidity, the better. Stabilizers can work even at critical humidity levels (95%), however, their effectiveness is reduced.
- It is not necessary to arrange "water procedures". Inverter devices are afraid of water and fuels and lubricants. So, if liquid still gets on the device, it must be dried. The situation is similar with condensate.
- Electrical hazards. During operation, the capacitor accumulates current. Therefore, do not touch this component with your bare hands when repairing the device. in addition, the stabilizer must be installed indoors, where there is no contact with explosives.
- Ventilation. An important point is to provide the device with access to fresh air. Therefore, it is recommended to install the stabilizer at a distance 5-10 cm from other items.
- Timely maintenance. Inverter products must be disassembled from time to time, clean from dust and check the contacts of internal components.
Inverter stabilizers have significant differences from electric ones, triac or relay counterparts. The main difference between these products is the quality of work and cost of the device. However, using inverter varieties you can not worry about it, how effectively the stabilizer works.
