This article describes what a voltage regulator is, what dangerously unstable voltage, causes and how to deal with it.
What is a voltage regulator?
There is an erroneous opinion that in the event of voltage surges, it is sufficient to install a voltage relay to protect household appliances. The only thing that the relay is capable of is to save from the strong voltage drops, but the possibility to "live a full life" will be provided only by the voltage regulator!
Voltage stabilizer is a device that allows you to keep a stable voltage of 220 volts in a home network, regardless of the voltage that is coming to the house.
That is, if the network is undervoltage 110-200 V or higher 240-310 V, the voltage regulator makes it constantly normal - 220 V, plus it protects the devices at power surges up to 420 V. Also, the stabilizer has additional protections related to emergencies in power networks.
How to choose a voltage regulator, told
This video shows the real situation in Ukraine at the beginning of 2016:
What is dangerous unstable voltage?
The lowest voltage for a refrigerator, air conditioner, water pump and other appliances with electric motors is dangerous.
In all mechanisms of this type there is an electric motor (pump or compressor) that is designed to operate on a 220 V network, if the voltage in the network is lower, then it needs to increase the current for compensation, which significantly affects the resource of the equipment. Plus, at the time of starting the electric motor there is such a property as an inrush current, which is 3-4 times greater than the working current. At low voltage there can be situations when huge currents are applied to the electric motor, but it can not start working, it only intensively heats up. And start the electric motor often, because the pump, the compressor in the refrigerator or air conditioner works in the mode: "it started-worked-turned off-rested-started-worked-turned off, rested ... etc."
For example, a 1 kW shifter pump with a voltage of 220 V consumes a current of 4.5 amperes, this component calculates the details of the pump motor. If the voltage falls to 170 V, then in order for the pump to work, the current will increase and it will be almost 6 A, and this is 30% higher than it is calculated. Similarly, the starting current also increases. As a result, the pump motor will start to overheat, the insulation will melt, the winding will close and the engine will fail. And this failure, of course, is not a warranty case.
Similarly, the electric motors in the compressor of the refrigerator and air conditioner work.
At such devices as a microwave oven, an electric kettle, an iron, a boiler, a heater, incandescent lamps - at low voltage, the performance drops dramatically, if in simple terms "they begin to heat badly".
Such devices as gas boiler, washing machine, uninterruptible power supplies, economical lamps - at low voltage in general may not be included.
At power surges above 240 V, household appliances simply fail, because simply are not designed for such a voltage.
Why is the voltage in the network unstable?
The causes of low voltage in the network.
Every day people build new homes, connect more and more new electronics. The electric network does not change anything, it remains in the same state as 20-30 years ago, although the consumption of electricity has increased significantly. And when the electricity consumption is greater than that for which the local electrical substation and electrical networks are calculated, the voltage in the network begins to fall. Sometimes in the city, the voltage drops to 150-180 V, what can we talk about suburban buildings and villages.
Especially there is a drop in tension in the morning and evening, when the total consumption in the network increases. Since at this time most residents actively use electrical appliances, and the substation and power transmission lines are not designed for such power consumption.
The causes of high voltage in the network.
The usual situation is when our brave workers of electric grids go in a simple and cheap way in the matter of "modernization of the electric grid".
For the modernization of the power grid, an integrated approach is required, - to make calculations of electricity consumption and, in accordance with them, to replace power lines and a substation, it is possible to install one more additionally. All this costs colossal costs, nobody wants to spend money. Therefore, the employees of electric networks intentionally raise the voltage at substations above the norm. Or if it is old, first change the transformer and then still raise the voltage above the norm.
For example, those who are closer to the substation - voltage in the network 240-250 V, and those who are three kilometers from the substation instead of 140 V, becomes 160 V and at least something of household appliances begins to work.
The causes of voltage drops in the network.
Basically, this is a consequence of the two situations described above.
For example, during the day, the voltage near the substation is 240 V, in remote sections of the network 160 V. In the evening people include household appliances, the total consumption increases - a kilometer from the substation 220 V, three kilometers from it 130 V. At night all go to bed, the total electricity consumption is minimal , next to the substation 260 V, far from it 180 V. And so on.
It turns out that the network voltage in the house is constantly changing. This is aggravated by the fact that the situation described above is superimposed on connecting powerful consumers with neighbors such as: a welding machine, electric heaters and other powerful electrical appliances. As a result, you have a sudden drop in voltage in your home.
There are also cases of faults on the line or the wrong actions of the electricians. In these cases, the voltage can short-term reach 360-380 V.
How to deal with unstable stress?
First option.
Obtain from the organization supplying electricity for the work on the replacement of the power grid and substations.
As practice shows in the realities of Ukraine, - in the required amount of work are not carried out, because this is a huge cost. At best, they make some minimum amount of work that does not meet all the requirements. Also, there are cases when, at the time of the work, the "specialists" will kill the required cable or mix up the zero with the phase, as a result of the voltage spikes electrical appliances are burned at the half of the village.
Another nuance, the time from the moment of applying to Oblenergo before carrying out any work usually takes not a year or two, you can wait for dozens of years, but you want to live now.
The second option.
Install a voltage regulator, which will allow you to live normally now and not to waste extra time, money and nerves on repairing household appliances. Also the stabilizer gives additional protection of household appliances from emergency situations in the network.
The best option.
Establish a voltage regulator now and, as far as possible, to get from Oblenergo competent modernization of the power grid.
Stabilizers are devices for automatically maintaining the constant value of the electrical voltage at the inputs of electrical energy receivers (voltage regulator) or the current in their circuits (current stabilizer), regardless of the voltage fluctuations in the mains and the load. The stabilizer provides the load with a stabilized voltage only in the event that the mains voltage is within certain limits. If the mains voltage goes beyond these limits (significant voltage surges, as well as its short-term deep dips or total absence), the stabilizer will disconnect the powered electrical appliances and they will de-energize.
Stabilizers are single- and three-phase with capacities from 100 VA to 250 kVA and higher.
Types of stabilizers
Stabilizers are of the following types:FERR RESONANCE. They were developed in the mid-60s of the last century, their action is based on the phenomenon of magnetic saturation of ferromagnetic cores of transformers or chokes. Such devices were used to stabilize the supply voltage of household appliances (TV, radio, refrigerator, etc.).
Advantages of ferro-resonance stabilizers: high accuracy of maintaining the output voltage (1-3%), high (for that time) control speed. Disadvantages: increased noise level and dependence of the quality of stabilization on the magnitude of the load.
Modern ferro-resonance stabilizers do not have these drawbacks, but their cost is equal to or higher than the cost of the UPS (Uninterruptible Power Supply) for the same power. As a result, the widely dispersed ferro-resonance stabilizers have not been used as domestic stabilizers.
Electromechanical. In the 60-80s of the last century, autotransformers with manual adjustment of the output voltage were used to regulate the voltage, so you had to constantly monitor the device showing the output voltage (pointer or luminous ruler) and, if necessary, manually set the nominal voltage. Currently, the output voltage is corrected automatically, using an electric motor with a reducer.
The advantage of such electromechanical stabilizers is high accuracy of maintaining the output voltage (2-3%). Disadvantages - increased noise level (the engine is noisy, and almost constantly, because the voltage change is monitored by (2-4 V) and low speed of regulation due to engine inertia. The output voltage may exceed the maximum permissible value, but in most cases, such high accuracy is not required, 5-7% is enough, as indicated in the passports for the most widely used general household appliances.
Have got distribution as cheap household stabilizers.
Electronic (step control). The widest class of stabilizers, ensuring the maintenance of the output voltage with a certain accuracy over a wide range of input voltage. The principle of stabilization is based on automatic switching of sections of the transformer with the help of power switches (relays, thyristors, triacs). Due to a number of advantages, electronic voltage regulators have found the greatest distribution in the market of stabilizers.
Advantages: speed, wide range of input voltage, no distortion of the input voltage, high efficiency. The disadvantage is a step change in the output voltage, which limits the accuracy of stabilization within 0.9% -7%.
These stabilizers - the optimal ratio of price / quality when used in industry and everyday life. Some models allow the correction of the output voltage within the limits of 210-230 V.
Climatic performance
The climatic design of most of the proposed stabilizers IP20, they are designed for installation in rooms with an ambient temperature of + 5 ... + 35 ° C, with a relative humidity of 35-90%, with an atmosphere that does not contain dust, water sprays, etc. If the temperature below 0 ° C is placed in the room for stabilizer installation, it is possible to design in heated cases.Basic parameters and functions
Input voltage range. Along with the accuracy of stabilization, it is the most important characteristic of it. This range consists of two categories:- working - when the input voltage is within the limits at which the declared stabilization value is provided at the output, for example 220 ± 5%;
- limiting - when the stabilizer remains operational, but the voltage at the output differs from the declared value in the greater or lesser side to 15-18%). With the voltage at the input that goes beyond the limit, the stabilizer shuts off electrical appliances, while remaining connected to the network for monitoring with the possibility of connecting electrical appliances to work once the supply network returns to the operating (limiting) voltage range.
Accuracy of output voltage stabilization depends on the value of the input voltage, if it is in the operating range, then the stabilization accuracy is 0.9-5%, depending on the stabilizer model.
Overload capacity - the ability to withstand short-term overloads from appliances that have high inrush currents (for example, a submersible pump motor, a refrigerator, etc.).
Overload and short circuit protection at the output. In case of overloading of the stabilizer, when the power starts to be removed from the stabilizer by 5-50% exceeding the nominal power for a long period of time (from 0.1seconds to 1min or slightly more), the protection system is triggered (the response time of protection depends on the amount of overload) which will disconnect the stabilizer and thereby prevent its failure. If there is a function of a single restart in the stabilizer after 10 seconds. After it is turned off for overload, it will turn on again. If the overload is not present when the stabilizer is switched on again, the stabilizer continues to operate normally. In the event of a short circuit in the circuit of electrical appliances connected to the stabilizer, the stabilizer will shut off. After that, it is necessary to identify and eliminate the cause of the short circuit and only then turn on the stabilizer.
Output voltage monitoring system. In the event of a failure of the stabilizer or an instantaneous increase in the input voltage, such a system disconnects the electrical appliances from the stabilizer and prevents their failure.
Output voltage adjustment. The presence in some models of stabilizers of the possibility of adjusting the output voltage in the range of 210-230V, which helps to solve several problems simultaneously:
- it is possible to install at the output of the stabilizer the western voltage standards 230V for imported electrical appliances. Without such a function, the stabilizer will constantly go beyond the lower voltage range specified for these electrical appliances, which can cause malfunctions in their operation;
- for incandescent lamps, a voltage of about 210 V can be set, which will significantly increase their service life, while the light flux will remain within the limits declared by the manufacturer.
Automatic switching on of the stabilizer when the input voltage is returned to the set range. Because the stabilizer disconnects the load in case of an input voltage out of limits, it must automatically turn on and connect the load if the input voltage has returned to the set range, otherwise you will have to monitor the mains voltage and turn on the stabilizer manually.
The presence at the input and output of the stabilizer filters for suppression of impulse noise. This is a useful function that will protect electrical appliances from interference in the radio frequency range.
Unfortunately, the quality of electricity in power networks almost never meets the requirements of GOST. Low quality of electric power is manifested as increased or decreased voltage, sudden jumps and voltage fluctuations, high-frequency noise and high-voltage impulses, etc.
Household appliances, which make our life not only pleasant and convenient, but also worth a lot of money, is extremely sensitive to the quality of electricity. In fact, all of our home appliances: computers and other office equipment, audio / video equipment and televisions, refrigerators and washing machines, are constantly at risk of breakage due to poor quality power.
To suddenly not lose comfort and avoid unplanned costs for the purchase of a new TV, refrigerator, washing machine, or computer, you must use surge Protectors.
Voltage stabilizer is a device that allows you to maintain a stable and high-quality voltage in your home electrical network. This is a real protector, which will save your electrical appliances in working order and save your money, nerves and habitual way of life for a long time.
The figure clearly shows how the stabilizer converts broken, low-quality incoming sinusoids of the electric current (left) into right-shaped sinusoids (right). It is this transformation that allows you to keep your household appliances working for a long time.
Voltage stabilizers are used not only to protect individual household appliances, but also to provide high-quality power to urban apartments, cottages, country houses and cottages in full power consumption.
Classification of voltage regulators
According to the principle of action, the voltage regulators are divided into types:
FERR RESONATORS - work of this type of voltage stabilizers, based on the voltage ferro-resonance effect in the transformer-capacitor circuit. At present, stabilizers of this type have disappeared, because they are characterized by a number of design flaws: low efficiency, high noise level, inability to work at idle and during overloads, etc.
Stabilizers on the principle of a magnetic amplifier - the effect of these stabilizers is based on the effect of nonlinear magnetization of the transformer core. These are the only voltage regulators that operate in a wide amplitude of atmospheric temperatures: from minus 45 to plus 45 ° C. However, a high noise level, a narrow operating range of input voltages, a strong distortion of the shape of the electric current sinusoid, and a large mass, did not allow stabilizers of this type to be widely used.
Stabilized voltage regulators with step regulation are AC voltage stabilizers, whose operation is based on commutation between the sections of the secondary winding of a transformer with a different number of turns. Switching occurs automatically, with the help of power switches such as relays, thyristors, triacs, etc. The drawback of this type of stabilizers is that, by virtue of the principle of operation, they can not provide high accuracy of the output voltage. In addition, during the switching sections there are short-term voltage dips and interference, which limits the area of their application.
Electromechanical voltage regulators - these stabilizers, with the help of electronically controlled servo, stabilize the voltage by changing the position of the autotransformer brush. Electromechanical voltage stabilizers allow to provide high accuracy of output voltage and work at overloads, without creating interference and working in a wide range of voltages. Stabilizers of this type have found application on a large scale in everyday life and industry.
Stabilizers with double energy conversion - provide a stable sinusoidal voltage due to the fact that their design uses a transistor inverter with a pulse width modulation controller and a rectifier. However, at the moment, stabilizers of this type are in the stage of industrial development.
Stabilizers with high-frequency transistor control - their work is based on the use of high-speed power transistors, which are switched at a high frequency for each period of mains voltage. This type is the most promising in the production of stabilizers. But at the moment there is a personal issue under development.
Why do I need a voltage regulator?
Useful information about voltage regulators
The rate of growth of the power-to-weight ratio of our life reached impressive peaks - from a light bulb and an iron in the 50's, to personal computers, home theaters and various combine harvesters these days. The increase in electricity consumption in industry is even more significant. Recently, the situation with the quality of power supply has worsened with the advent of energy-intensive equipment and technologies, the management of which is based on the switching principle (via relays, contactors, thyristors and personal computers). This caused such power failures as high-frequency pulses and distortion of the sinusoidal voltage and current form.
Unfortunately, the efforts of electricity supply companies not only can not guarantee consumers a stable voltage, but they themselves exacerbate the problem. Thus, electricity suppliers, and this is not a secret, often raise the voltage in low-voltage networks from 220-380 V (± 5%) to 230/400 V (± 10%). As a result, all connected electrical equipment, designed for 220 V, will consume (and it will be paid for) by 9.3% more energy than necessary. These and other violations of the quality of power supply can lead not only to the failure of equipment, malfunctions of technological processes and data loss, but also to human casualties (with the failure of life support and firefighting).
For example, consider different electrical devices and the effect that they exert excessive and insufficient voltage on the network.
In the electric motors, the starting torque varies with the voltage as follows. If the voltage is lower than the rated voltage by 10%, the torque drops by 20% and the heating of the windings increases by approximately 7 degrees. If the voltage is higher than the nominal value by 10%, the current rises by 12%, heating by 10 degrees and energy consumption by 21%.
In lighting systems, a 10% higher voltage increases the luminous flux by 30% and reduces lamp life by an average of 40%. The energy consumption increases by 21%. Reducing the voltage by this value in gas-filled lamps results in a loss of the emitted light by approximately 42%.
In equipment that includes heating elements, insufficient voltage (-10%) leads to the fact that the processes for which it should be spent, for example, 4 hours, will last 5 hours, since the amount of heat released varies in proportion to the square of the voltage.
Since the problem is not new and all of the above is well known, specialists of various levels are making significant efforts towards more rational use of energy resources. And the most effective measure of energy saving with a minimum of capital investments is the stabilization of the voltage.
The voltage stabilizer is a device that guarantees the reception of a stabilized voltage of 220 volts, regardless of its value in the mains.
The simplest stabilizers are electromechanical ones based on the autotransformer, where the brushes are driven along the secondary winding by a reversible motor. The motor receives the control voltage from the output voltage measurement.
This system is fully operable during the warranty period, however, in the future, especially under our Russian conditions with frequent voltage drops, there is a risk of failure of the mechanical drive of the brushes and the interturn closure of the windings due to their erasure. Therefore, such properties of this stabilizer, as increased fire hazard with increasing its power and large inertia, are a significant "contra-indication" for supplying equipment that requires high-quality food.
Electronic stabilizers based on electronic switches (thyristors) react much more quickly to changes in voltage in the network and are equipped with protection systems for both the load and the stabilizer itself.
The use of a voltage regulator allows:
- to provide not only energy saving by eliminating voltage drawbacks in the network, but also - resource growth and equipment performance due to the fact that it is not subjected to unexpected changes in supply voltage and operates at the voltage for which it is calculated;
- decrease in the cost of maintenance, t. the resource of the equipment increases - the period of replacement of individual units or equipment as a whole is prolonged due to the long-term preservation of their operability. The number of failures and failures is also reduced by eliminating the risk factor;
- adaptation of equipment designed for a 220/380 V network, when switching to a 230/400 V network without additional capital investment. The modern stabilizer will always provide the required voltage, and therefore, the predicted characteristics of equipment and energy consumption.
Therefore, the use of voltage stabilization is the most affordable and effective measure of energy saving, especially in situations where energy management is a key issue in the consumption of electricity.
Generation of voltage regulators developed "NPP INTEPS" , is the optimal solution for the price / quality ratio, and the uniqueness of a number of technical characteristics and the functionality of the stabilizers are able to meet the specific requirements for powering the equipment.
How to choose the correct voltage regulator Lider
Every day we live a full life, at work and at home, and all kinds of electrical equipment helps us, which has become an integral part of our life.
We know that the best way to protect electrical appliances is the stabilizer. There is no longer a question: buy or not buy a stabilizer, the question arises - which one to choose? This is where the memo comes in handy. We will not go into long explanations for each specific case. We only give a number of useful tips, which should be guided when choosing a stabilizer Lider.
1. First, it is necessary to determine which of the stabilizers is needed - single-phase or three-phase.
If your network has three-phase consumers (motors, pumps), then the choice is obvious - you need a three-phase stabilizer. Also, its choice is possible if the total load exceeds 7-10 kVA (for single-phase household, office and other equipment). It is very important that the load on each phase does not exceed the permissible value of the power for the voltage regulator in this phase.
2. At the next stage of selecting the voltage regulator, it is necessary to determine the total power consumed by all the electrical receivers.
For example: computer + TV + heater = 400W + 300W + 1500W = 2200W.
The power consumed by a particular device can be found from the passport or the operating instructions. Typically, this figure, together with the supply voltage and the frequency of the network, is indicated on the back of the device or device.
It is important to remember that the power consumed by the electric receivers consists of active and reactive components. In the case of reactive component = 0, the load can be called active. The active load includes electric receivers, in which all the consumed energy is converted into other types of energy. Such devices include: incandescent lamps, irons, electric stoves, heaters, etc. Their total and active (useful) power are equal.
All other types of loads are reactive.
There are cases where only the voltage in volts (V) and the current in amperes (A) are indicated in the passport or on the back of the device / device. In this case, one should resort to simple arithmetic: the voltage (B) is multiplied by the current strength (A) and divided by the power factor COS (?) (If it is not specified, then we should take COS (?) = 0.7). As a result, we obtain the total power measured in VA.
If in the passport data the load power is given in W, then to determine the total power, the data in W must be divided into COS (?) (For the active load COS (?) = 1).
For example: the passport data indicate the power of the washing machine is 1500 W, COS (?) - not specified. Your actions: the indicated capacity of the washing machine (1500 W) divide by COS (?) = 0.7. As a result, you get a reactive load of 2143 VA. Therefore, for this case, the stabilizer Lider PS 3000 W or Lider PS 3000 SQ is suitable.
A separate point is to consider the calculation of the total power of the electric motor. Any electric motor at the moment of switching on consumes energy 3-3.5 times more than in the normal mode. To ensure the starting currents of the motors, a stabilizer with a power of at least 3 times the rated power of the electric motor is required. For example: the electric motor of the ventilation system with a capacity of 3000 VA consumes 3 times more at the time of starting. Therefore, it will need 9000 VA, so when choosing a stabilizer, this factor must be taken into account.
Well, as a general recommendation, you can advise giving at least a small (in 10%, for example) power reserve in case of connecting one or more devices, and also to ensure that the stabilizer does not work in extreme conditions, at the limit of its passport characteristics.
3. At the final stage, the accuracy of the selected stabilizer is evaluated. It is determined by the permissible range of the supply voltage of the equipment. Usually this parameter is given in the operating instructions or in the passport for the appliance. For example, for the supply of laboratory or research equipment (medicine, metrology, etc.), home theater or household security systems, a voltage stability of not worse than 1% is required. This accuracy is provided by the stabilizers of the Lider SQ series. A similar situation is observed with lighting systems: the physiology of the human eye is such that it perceives a change in illumination when the voltage of the lamps is varied within 1% !. For most household and office equipment, the supply voltage stability is optimal within 5%. This stability will be provided by a series of stabilizers Lider W.
The stabilizer is a device that is an electrical appliance that is used to equalize the voltage fluctuations of a network when the current is applied to machinery such as computers, air conditioners, pumps,
Why stress? The regulator is mainly intended:
- protect electrical equipment against various threats, such as voltage fluctuations, high and low voltage;
- to disconnect the equipment from poor-quality power supply, with increasing or decreasing voltage thresholds;
- maintain the voltage at the proper level.
This device has many unique features that allow you to save electricity, affect performance and improve the reliability of equipment. The main parameters of the electric network are displayed on the device's display, always in the know about them - this means owning the situation. The power-on delay function provides a breather and stabilizes the power supply before feeding to the load, therefore, increases the service life of the devices.
And yet, why? Its use is the most accessible and effective measure of energy saving, saving devices from failure and peace of mind of household members.
If the device is selected correctly, then you can always rely on it and trust it. If the technology is not particularly clear, then you can rely on the suggestions and advice of the seller to choose a voltage regulator. The professional will recommend to start:
- determine the power, type of stabilizer and operating voltage range;
- identify and analyze the problems: increased, lowered or abruptly changing voltage in the power network.
Based on the received data, then proceed to select the device.
How to calculate the power of the device correctly? Ideally, you need to determine which most powerful consumer is present in the power supply scheme. Let's say electric receivers are a pumping station with a capacity of 1, 5 kW, a sauna - 10 kW, plus another device with a high power consumption. All the values in kilowatts must be added up and the desired power of the device obtained.
The stabilizer is selected with a small power reserve (20%), especially if there is equipment with a large starting current in the circuit. These are electric motors and pumps, which, at start-up, consume more energy than in normal operation.
The power reserve ensures a long life of the device, thanks to the sparing operation mode, and creates a reserve potential for connecting new equipment.
When choosing a stabilizer, you also need to take into account the service, because the device should be correct and, as well as take advantage of the warranty period and repair in case of malfunction.
How to choose the voltage regulator for home?
You can use the simplest option: to determine the power consumption from the network at the nominal value of the input automaton in the housing flap. Thus, the capacity of the machine and the maximum possible power of consumption for domestic needs are recognized.
Here is a simple example. How to choose if the input is an S40. With such a rated current from the network, you can get no more than 10 kW. Based on the calculated data, the device is selected.
To date, low voltage in the network - a very urgent problem and solve it best in one way - to purchase a stabilizer, 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 benefits of each version.
Types of protective devices
The most popular types of stabilizers for today are:
- electronic,
- electromechanical.
Electronic voltage regulators are devices of the best quality. In the absence of mechanical parts are characterized by a long service life, at least 15 years, and rather high reliability. It is possible to select according to the working voltage range for almost any task.
Electromechanical voltage stabilizers are characterized by a small speed, a narrow range of voltages, but a good overload capacity.
Useful information about voltage regulators for high accuracy
Many people try to choose the device with the maximum accuracy of stabilization, up to 0,5%. However, as a rule, a deviation of 10-15 V is considered a normal mode of operation for most equipment. And only in rare cases, the equipment with such deviations does not work or is capricious. Most of the stabilizers offered on the market provide this mode of operation.
A common misconception of buyers is that the device being purchased with high accuracy of stabilization is a guarantee of stable voltage and absence of flicker of light. In fact, it turns out the opposite: the more accurate the device, the more often it switches, adjusting to the input network, so the light bulbs do not stop flickering. This applies to incandescent lamps and halogen.
With the installation and relay type, the flicker of the bulbs will be maintained 100%. The only exceptions are stabilizers with a smooth adjustment of the signal. This concerns new developments. When choosing a regulator, it is advisable to follow the recommendations from the manufacturer or professionals. For the sake of accuracy, you can read the positive and negative reviews on the Internet for a particular model or brand.
Which one-phase or three-phase?
If the house has three phases, it is not necessary to install it. Most often, it turns out, you can do one-phased. You can get a lot of benefits.
First, the cost, which in general, three single-phase less than three-phase. Secondly, for maintainability is more reliable. It's one thing to remove one unit and take it to repair, the other - to remove the entire unit.
Commercial benefits of installing a voltage regulator
Domestic electricity networks are physically badly worn out, and in some cases morally obsolete. And consumers are becoming more and more. The installation of stabilizers is beneficial for several reasons:
- modern technology is equipped with electronic stuffing, which is important for quality food. To ensure that it does not fail or is not subjected to expensive repairs, it is necessary to install a stabilizer;
- low voltage leads to a larger current consumption from the network. You have to pay more for electricity consumption. The benefit of the stabilizer is obvious;
- increased voltage can lead to short circuits, overheating of wires and fire. Without a stabilizer, in this case, material and moral damage can be enormous, if not irreparable;
- at normal voltage, sudden pulses from lightning, personnel errors, phase distortion during rush hour can also occur.
In all these and other unforeseen cases, the voltage regulator will help to save time, resources and nerves.
Possible consequences for devices (electrical consumers) under conditions of voltage deviation from the norm
- Reducing the voltage leads to a decrease in the light flux of the lamps. In poor light, the quality of the work is reduced.
- Poor lighting in the streets of the city leads to an increase in accidents.
- The increase in voltage leads to a sharp decrease in the life of light bulbs, sometimes twice, or even three times.
- Household heating appliances (tiles, irons, etc.), rated for passport power, with a decrease in voltage for longer heat. And so we get an over-expenditure of electricity for domestic needs.
That's what a voltage regulator is and why it's needed.
Let's sum up a little
Valuable qualities of regulators are fast response of the device to changing parameters in the network, an extended range of operating voltage, good overload ability, a sine wave of the correct shape at the output, noiselessness.