Autonomous power source. Autonomous power source: recommendations for choosing an autonomous power source

The first thing you need to rely on - number and nature of energy consuming systems. Typically, the list of such systems include air conditioning, heating, pumping water from a well. It is also necessary to consider the number of frequently used household electrical appliances and refrigeration equipment. All of the above requires uninterrupted power, which can provide any independent source.

The second step in the selection will be the calculation of total power. Indicators of consumption of each device are added together. The final autonomous power supply of a country house, cottage or apartment should exceed the amount received by 20-30%.

purpose

Minimize the total cost of the autonomous power system (EPS) at home for a long time.

As part of the considered SAP are meant:

• electric generator on an internal combustion engine;
• lead acid battery unit;
• battery charger;
• inverter (battery voltage converter to ~ 220V).

Reduce the time of the generator to 3.5 hours per day. Maybe it can be somewhat faster, but there is a certain duration of chemical processes in lead-acid batteries, and there is a limit on the temperature of the battery (40-45 ° C).

Generator fuel costs

For simplicity, other operating costs for the generator are not considered - they are relatively small.

• Let the average consumption of the generator - 2 liters of fuel per hour.
• Let the fuel cost - 20 rubles. per liter.
• Let the generator in the composition of the SAP works 7 hours a day.

If it is possible to reduce the time of the generator to 3.5 hours per day, then there is only a savings on fuel - 500 thousand. rubles for 10 years.

Generator resource

If the generator works 7 hours a day, then its resource - 2 500 hours will be spent for 1 year. With the cost of a generator with auto start 35 thousand rubles, for 10 years they will have to replace 5 units with one overhaul in the amount of 175 thousand rubles.

If we manage to reduce the generator operation time to 3.5 hours per day, then there is only a savings on the generator resource - 87 thousand. rubles for 10 years. And taking into account the cost of fuel - 590tys. rub. for 10 years.

Why did Andrew start thinking from 7 o'clock? This time is close to the most frequently used by people who did not make calculations of the cost-effectiveness of SAP.

How can you reduce the time of the generator?

There is only one way - due to the accelerated charge with a large current, the batteries of sufficiently large capacity.

There is a problem here - when charging the batteries with a current close to their limit, they start to get very hot, when overheating they fail very quickly. Overheating of the battery is highly dependent on the ambient temperature.

Some modern batteries allow charge currents of up to 0.2 ° C (i.e., up to 20% of the battery capacity in ampere hours) - this is true, at an ambient temperature of 20 ° C. If the battery is discharged to a residual capacity of 30%, and charged with a current of 0.2 ° C for 3.5 hours, then (with battery charge efficiency = 70%) in 3.5 hours we will get a charge on the battery equal to 80%.

Here is a graph of the voltage of a lead-acid battery on the level of charge. According to Andrei, this is true at 20 ° C and with the battery disconnected from the whole for several hours.

However, at the same time, we use only 80-30 = 50% of the useful capacity of the battery, i.e. you need to buy them by capacity 2 times more than the theoretical value of energy consumption in the house.

Why does the battery need to discharge only up to 30%, and not to zero, and charge only up to 80%, and not up to 100%?

Discharging the battery to less than 30% is not recommended, because they, at the same time, will begin a sharp decline in the resource. Pre-charge batteries from 80 to 100% must be produced with low currents for many hours (at least 6 hours), which, with frequent use, is absolutely unprofitable for fuel and generator life (see above).

Problem
It is known that in the case of systematic undercharging of lead-acid batteries, their resource is significantly reduced.

What are the options?

• There are modern batteries that (according to the manufacturer) are relatively resistant to systematic undercharging, for example, the Challenger G12FT. Despite this, it is recommended to carry out a full, 12-hour battery charge with a good charger (starting at 0.1 ° C) at least once a month.
•   You will read about the "Economical (" two-stroke ") autonomous power system", which is completely devoid of this disadvantage, but "in return" requires additional, but payback investment.

To calculate the capacity of the battery, Andrei gives some practical estimates for a hypothetical house (80-150 sq. M., Heating and cooking food - not on electricity). With a permanent residence of 3-4 people, if you do not do stupid things, then the average daily electricity consumption in winter can be up to 700W / hour (24-3.5) hours = 14.4 kW / hour. Given the low discharge and undercharging, the battery should have 28.8 kW / hour. Those. - A battery with 12Vx150Ach parameters should be 16pcs.

About the calculation of the cost of the battery

If you take batteries like OpzS (and these are the most cost-effective batteries), then at a unit price of 19 tr. (very approximately) it will be necessary to spend 19 tons. * 16pcs = 304 thousand rubles. With the specified discharge characteristics (30-80%), the number of charge-discharge cycles for this type of battery will be about 1600, i.e. 4,4 years. When recalculated, for 10 years the cost of all batteries will be 304 * 10 / 4.4 = 690 thousand rubles. And at 7 o'clock (per day) the generator would have to have them in the amount of 590 thousand rubles.

"Losses" for 10 years: 690-590 = 100t.r. (compare with the amount of 590t.r. losses on the generator !!!).

About choosing a charger (memory)

The memory is an important node in SAPs, since from the correct battery charge depends on their lifespan. It should be branded, and not less than 3 steps of charge and should provide each battery with charging current of at least 0.2C. It is also desirable to have a sufficient number of adjustments to adjust for different modes of operation. Well, and, naturally, its output voltage should coincide with the voltage of your battery pack (24 or 48 Volts). 12V for such a powerful system, Andrew does not recommend.

Attention
When charging the battery, it is very important not to overheat the batteries, otherwise they will fail very quickly.
Require the supplier to complete documentation on the battery (including TU) and act strictly according to the documents.

About choosing an inverter

Inverter is a rather complicated and capricious system. It should be:

• branded,
• must have sufficient stationary and starting power,
• should have a sinusoid output (and not a square wave or even a modified sinusoid),
• should have a service in your city,
• naturally, it should work exactly from the voltage that you build from your batteries,
• and also a lot of options and wide functionality will not hurt.

About battery selection

The choice of lead-acid batteries for power systems can be read -.

Conclusion
Reducing the daily operating time of the generator from 7 to 3.5 hours will give for 10 years a solid economic effect, for our example - about 490 thousand. rubles.

Note to conclusion
In this method, a qualified "balancing" of the system should be applied, since when the battery charge current is exceeded (and most importantly, their temperatures), they will fail very quickly. If for this type of battery you need to slightly increase the charge time, then this will probably be correct (all the same, everything must be considered).

Forced cooling of a battery, such as a fan, will greatly help to increase their service life (the basement is an ideal place for a battery with any system, and especially for this method).

Posted by the participant of the House and Dacha forum Andrey A.A.
Editor: Roman Adamov

In connection with the frequent power outages, unstable voltage and frequency in the power grid, more and more questions have been asked recently: How to provide yourself with electricity for the time when the main power supply is disconnected? Which source of autonomous power to choose? And how to do it?

First you need to decide on the conditions of the problem.

The first condition is load power consumption. This power consists of the capacity of individual consumers of electricity. The number of consumers, from the capacities of which the total load capacity is formed, will depend only on your desire. However, it should be borne in mind that those consumers that you did not include in this list should be disconnected during the operation of the autonomous power source. Failure to do so may result in overloading and even equipment failure.

So you need to understand what you want to get? Ensure a comfortable life at the time of disconnection, regardless of how much the network has been disconnected, or to get along with several especially important consumers, whose disconnection can lead to serious material costs (for example, a heating system).

A country house typically consumes from 5 to 40 kVA. This includes lighting, heating systems, water supply, sewage systems, household electrical appliances, security and fire alarm systems, video surveillance systems.

If you decide to power a part of consumers from an autonomous source (which is reasonable from the point of view of price), then from this entire list you need to choose, first of all, the most critical to the power failure of consumers (emergency lighting, heating system), and then we summarize them less critical loads. Electricity consumers who do not have an inductive component of power, are called active: incandescent lamps, heating devices. However, a simple summation of capacities will be fair until you reach the equipment that has inrush currents. It tends to consume several times the rated current at the time of launch. These currents must be considered and given the appropriate power margin (approximately 2.5-3.5 times). Such consumers are called inductive: electric drills, electric saws, pumps, compressors, refrigerators, laser printers, etc. In addition, it is necessary to take into account the coefficient of simultaneity, which shows the percentage of simultaneous operation of equipment.

Primary Power (Prime Rating Power)- this is the maximum power that a DGU can develop during continuous operation at variable load for an unlimited time.The average load in a 24-hour period is 70%, unless otherwise specified by the manufacturer. Overload for 1 hour at 12 hours of work is not specified by ISO, but is allowed. The minimum value of the load DGU is 25% of the power PRP.

That is, if you assume that your generating set will work as the main source of electricity, then you need to focus on this power. If the PRP value is not specified, then this generating set can operate only as a backup power supply.

Auxiliary and reserve power (Emergency Standby Power)- this maximumwhich DGU can develop when working on variable load  during a possible interruption in the power grid, which DGU reserves, with an annual time of no more than 500 hours. Average power over a 24-hour period is 70%, unless otherwise stated by the manufacturer. Overload is not allowed.

The minimum load of DGU is not regulated, but it is 25% of the power of PRP.

That is, this is the power that the generator set can develop for a short time, as a backup power source. ESP power is always greater than PRP power, since it is the power that the generating set develops for a short time (no more than 500 hours per year), but overloading is not allowed.

Thus, the calculation of power consumption is not as simple as it seems at first glance, the task. And we recommend to contact the specialists for correct and correct assessment of power consumption and error-free selection of equipment.

The next important component of the condition of this problem is battery life, that is, the time that your autonomous power supply will work until it recovers and reaches the permissible limits of the voltage of the main power supply network.

To determine this parameter, you need to analyze how often and how much time power outages occur and, based on this, determine the battery life required for you.

Let me explain why this is important. With short-term power failures with a small periodicity, one of the solutions to the problem of autonomous power supply is to install an uninterruptible power supply that uses battery power in autonomous mode, the number of which can be increased depending on the required battery life (up to several tens of minutes). With longer and frequent trips, a solution to the same problem is to install a generator set, for which you also need to provide an adequate supply of fuel, depending on the required battery life.

And one more thing to consider when setting the conditions for this task is the availability of equipment that is critical to various kinds of jumps, pulses, voltage drops and deviations of the frequency of the main power grid. These are electronic control units for equipment (for example, a heating system boiler), computers, alarm and fire alarm controllers, plasma panels, etc. That is, equipment that requires high-quality power supply, otherwise it may not work correctly or simply fail.

Now that the conditions of the problem are known, we can begin to solve it. There are several options for technical solutions.

UPS according to the principle of operation can be divided into two groups: Off line  and On Line. Off Line (Stand-By)a type of UPS that allows the load to be interrupted while switching from the input mains to the inverter (transfer time, or switching time). On line  A type of UPS that provides continuous and filtered power to the load. By definition, on-line UPSs have zero switching time; load never sees power interruption.

As a rule, single-phase UPS from 4 to 10 kVA of On Line class are used as a backup power source for country houses.

Compared with backup generator sets, UPSs have a number of undeniable advantages.

• significantly higher safety factor;
• long time between failures;
• high quality power output;
• no need for periodic maintenance and replacement of consumables;
• noiseless operation;
• easy connection and installation.

However, to ensure a relatively long autonomy time (from several tens of minutes to several hours), the UPS should be equipped with a sufficient number of batteries (hereinafter referred to as batteries) of a certain capacity, which will most often be limited by the technical capabilities of the UPS, namely the capabilities of the battery charger. In addition, the battery life will depend on several parameters: the load on the UPS, the efficiency of the particular inverter, the ambient temperature, the condition and the degree of battery wear.

Of course, there is the possibility of creating a powerful uninterruptible power system with a long autonomy time. But this raises the question of the economic validity of such a decision, and this is an important factor in the process of choosing an autonomous power source.

At present, there are many different kinds of generating sets on the Russian market, a wide range of capacities of a multitude of manufacturers, various versions of which will make even a sophisticated buyer think.

Below we give a classification of the main features of the design of generating sets. And we give a brief explanation, so to speak, at the household level for each of the classification items.

By type of performance

• portable - household, semi-professional and professional gasoline or diesel generator sets with a capacity of up to 12 kVA, can be used as backup power sources; to power consumers with medium and high intensity; for individual activities. They have an air cooling system, they can be with upper or lower valve timing, reliable, convenient and unpretentious in operation.
• stationary - professional diesel power plants with capacity from 10 to 2500 kVA, are used as the main and backup power sources. They have a liquid cooling system, as a rule, with the upper location of valves in the gas distribution system, excellent resource indicators, low operating costs. Requires professional installation.

By way of cooling

• air-cooled - generator sets that are cooled by ambient air.
• water-cooled - generator sets that are cooled with liquid (as a rule, glycol mixtures with water).

Used fuel

• gasoline - generator sets, which use gasoline as fuel.
• diesel - generator sets, which use diesel fuel as fuel.

The frequency of rotation of the engine crankshaft

• 3000 rpm - engines operating at this frequency are cheaper and less, but much more noisy, with higher fuel and oil consumption and have a lower resource;
• 1500 rpm - these engines are quieter, with less consumption and a higher resource. Can be used as a primary power source.

By type of alternator

• with a synchronous generator, have a higher quality of electricity, capable of carrying short-term overload;
• with asynchronous generator, structurally easier and cheaper. However, they have a rather low quality of electrical power at the outlet and are not capable of overloads.

By the number of phases

• single-phase (220 V 50 Hz), only single-phase consumers can be powered from such a generator set;
• three-phase (380 V, 220 V 50 Hz) from such a generator set can be powered as a three-phase consumers, and single-phase. However, it should be borne in mind that the power of one phase of a three-phase station is 3 times less than the total capacity of the installation. It is also necessary to ensure the uniformity of loading of the phases in order to avoid the so-called "skew" of the phases, which badly affects the state of the generating set.

According to the location of the valve timing system

• with lower valve arrangement;
• with overhead valves.

By way of launch

• manual - it is used only for small portable stations, the launch takes place with the help of a cord by unwinding the engine crankshaft to the required frequency for starting;
• electric starter - used for all installations, start-up takes place with the help of electric starter by turning the ignition key;
• automatic - used for installations in which the automatic launch function is implemented. Requires additional equipment. Not necessarily the presence of a person at the start and taking the load.

Now consider the main types of generator sets in the complex.

Generator sets with 2 or 4 stroke gasoline engine

• 2-stroke engines, as a rule, are put only on the most low-power and compact generator sets (time between failures is not more than 500 hours);
• 4-stroke gasoline engines are placed on more serious stations, but not more than 15 kVA (no more powerful than gasoline engines). Time to failure from 1000 to 4000 hours. The main producers are the American company Briggs & Stratton; and Japanese Honda.

Generator sets with 4-stroke diesel engine.

Air-cooled diesel generators are intermediate between gasoline and liquid-cooled diesel engines. Air-cooled diesel generator sets up to 6 kVA are not much different from their gasoline counterparts, although they have a long life and are more reliable. MTBF is more than 4000 hours. The main manufacturer is the Japanese company Yanmar.

More powerful diesel engines with air cooling up to 20 kVA are capricious to the fuel quality, quite noisy and bulky. So in this case it is better to look for an alternative among diesel engines with liquid cooling. The main manufacturer is the German company Hatz.

Diesel engines with liquid cooling are the most reliable and durable. MTBF is up to 20,000 hours. They are industrial grade installations.

The most acceptable in terms of equipment with various options. Major manufacturers from 6 to 20 kVA:

1. Mitsubishi, from 20 to 275 - John Deere, from 200 to 500 kVA
2. Volvo and Perkins, more than 500 kVA - MTU.

Now let's summarize this solution. With frequent and prolonged power outages or in the absence of an external network, the choice is obvious. However, if we return to the third condition of the problem of consumers critical to interruptions and the quality of electric power, we see that this solution is not very acceptable, since from the moment the voltage drops to the time it is restored by the generator, there is an interruption in the power supply and the generator does not protect against input network distortion.

In order to ensure uninterrupted power to consumers that are critical to the quality of electricity and at the same time have a sufficiently long autonomy time, we recommend using the UPS and GU joint operation. At the time of the power outage of the main power grid, the UPS supplies the most responsible consumers with battery energy. The remaining consumers remain de-energized until the launch of the generating set. After starting the UPS, the UPS goes into normal operation and charges the battery. This is the most acceptable option in terms of reliability.

However, when the UPS and PG are working together, it must be borne in mind that when calculating the PG power, the UPS power calculated earlier must be summed up with the power of the remaining electricity consumers, taking into account the safety factor (1.3-2 depending on which rectifier UPS and whether THD-filters), taking into account the harmonic distortion of the UPS. So, as we see, the solution to the problem of backup power supply is a rather complex and multifaceted task that requires serious study. This takes into account many factors related to both the load and equipment. We recommend that when solving problems of this kind in order to avoid making mistakes and to save your time, consult with specialists.

self-powered
-
[Ya.N.Luginsky, M.S.Fesi-Zhilinskaya, Yu.S.Kabirov. English-Russian Dictionary of Electrical and Power Engineering, Moscow]

• electrical engineering, basic concepts

• self-contained supply
• self-contained power supply

Handbook of technical translator. - Intent. 2009-2013.

See what “self-contained power” is in other dictionaries:

self-powered  - savarankiškasis maitinimas statusas T sritis radioelektronika atitikmenys: angl. self contained supply vok. Einzelspeisung, f, unabhängige Stromversorgung, f rus. self-powered, n pranc. alimentation individuelle, f ... Radioelektronikos terminų žodynas

NUTRITION - provision of electronic devices and electrical equipment with electricity for their uninterrupted normal and long-term operation. Distinguish the power supply of consumers from the centralized energy system and autonomous, in this case (see ... ... The Big Polytechnic Encyclopedia

Truck Grounding Device  - Check neutrality. There should be details on the talk page. Grounding devices for tank trucks (abbreviation UZA) are designed to remove the charges of static electricity at any technological ... Wikipedia

Dosimetry of ionizing radiation  - The section of applied nuclear physics, which examines the properties of ionizing radiation, physical quantities characterizing the radiation field and the interaction of radiation with matter (dosimetric values). In a narrower sense, the words D. and. and ... Medical Encyclopedia

DTS  - (Digital Theater System, DTS), multichannel system for playing digital sound in cinema. By 2001, DTS had become one of the world standards for the quality of cinema sound, faithfully reproducing in the cinema a recording made at a studio. Quality ... ... Encyclopedia of Cinema

TRUCK UNIT  - coupled sections of locomotives (control electric locomotives) and trucks of dump trucks (dumpcars) equipped with traction electric motors of the same type with engines of electric locomotives, which makes it possible to increase coupling weight by 2 3 times and include into the composition ... ... Large encyclopedic polytechnical dictionary

PACEMAKER  - (from electro. Greek. kardia heart and Latin. stimulo I push, excite) an electronic apparatus for replenishing nervously energetich. cardiac muscle function. E. generates pulses with an amplitude of 5 6 V, a duration of 1 1.2 ms with a frequency of 60 70 pulses in 1 ... ... Large encyclopedic polytechnic dictionary

Spacewalk  - Cosmonaut Oleg Kotov in the open space during the space flight of the ISS 22. The cosmonaut's work in outer space ... Wikipedia

Embedded system  - (built-in system, the embedded system) is a specialized microprocessor control system, the concept of development of which is that such a system will work, being built directly into the device, ... ... Wikipedia

Anechoic chamber  - Acoustic anechoic chamber ... Wikipedia

Autonomous power
  autonomous food autonomous food - [Y.N. Luginsky, M.S. Fezi-Zhilinskaya, Yu.S.Kabirov. English-Russian Dictionary of Electrical and Power Engineering, Moscow] electrical engineering, basic

Al food - what does it mean? All about food types

Types of food - a fairly broad concept. Under them can be meant the consumption of energy sources and nutrients in general, the particular eating habits of a person, as well as certain moments - types of food in hotels, airplanes, etc. In this article we will try to make out all the classifications in detail and answer some questions. Al food - what does it mean? What kind of it can be? What does autonomous power mean? Consider many other nuances.

Food in the scale of the biosphere

Food is a process of consumption of substances and energy, which is characteristic of absolutely all organisms inhabiting the globe. It is divided into two large groups - autotrophic and heterotrophic nutrition. Within themselves, they have smaller species.

Autotrophic. This is the ability to create organic elements from inorganic - carbon dioxide, mineral salts and water. Not to be confused with autonomous power. The latter concerns power supply. Autotrophic "skill" characterizes plants, some of the simplest, bacteria. Autotrophs are divided, in turn, into two categories:

• Phototrophs use the energy of the sun for the biosynthesis of substances. These are plants, cyanobacteria.
• Chemotrophs are used for the formation of organic elements of the energy of chemical reactions resulting from the oxidation of inorganic compounds. These include nitrifying, hydrogen, sulfur, iron bacteria.

Heterotrophic. These are organisms that consume ready-made organic substances, because they themselves are not able to form them from inorganic. This is the majority of bacteria, viruses, fungi, animals, including and we are with you. These living things are classified according to two criteria:

You can also highlight creatures such as mixotrophs. They can and consume ready-made organic substances, and synthesize them independently. These include euglenian algae, insectivorous plants, etc.

Types of human nutrition

In the light of recent trends, human nutrition is divided into the following categories:

Omnivorous. This type of food historically characterizes us. This refers to a person who eats the most diverse, but at the same time allows in his modern diet fast food, products containing preservatives, dyes.

Separate (healthy, proper) food. What is meant by this term? What does "proper nutrition" mean? This is a strict combination of various types of foods, food consumption time, caloric content of dishes.

Vegetarianism, including Lacto-Eggs, Oviet. People loyal to this type of food refuse to eat the flesh of animals. However, dishes from fish, shellfish, eggs, milk and its derivatives for many of them are not taboo.

Veganism Vegans eat only herbal products. Like vegetarians, they allow for heat treatment of food.

Raw foods (including veganosyroedenie, laktoovosyroedenie, syromonoeedie, etc.). People who adhere to this type of food, which in many respects is a certain worldview, use only vegetable food and only raw food - without cooking. It is important to note fruitorians here: they exclude plant seeds (beans, seeds, nuts, etc.) from their diet, eating only fruits and vegetables.

The most recent stage is the so-called Bigu state (sun-study, prano-studies, bretharism) - “failure”, the rejection of solid, and subsequently liquid food. Needless to say, it is achieved through lengthy spiritual practices.

The main categories of food in hotels

Now let's get to the bottom of what it means - powering Al, FB, RO, BF, etc.

Al food - what does it mean? All about food types
  An article about healthy eating and sports. Useful recipes and exercises. News, photos and videos.

Autonomous power supplies

With the situation when the power is turned off, everyone has probably come across. And sometimes there is no electricity at the most inopportune moment. In country houses problems with electricity supply is also not uncommon. But what if such situations occur quite often?

Modern technologies have developed so well that a way out of this situation was found - these are autonomous power sources that can be bought from us.

Voltage drops? Autonomous sources of electricity will help!

Sources of backup power  also relevant when stretching the power line is simply impossible, or the power supply is simply of poor quality. Each owner of a country house wants to relax and have a great weekend, and without electricity in such situations just can not do. Constant and systematic voltage drops, accompanied by "flashing" of lighting devices, adversely affect the equipment, significantly reducing their service life. Too much spikes can destroy the chips and power supplies.

Functions of autonomous power sources.

In order for all the equipment to work long and smoothly, it is better to use independent sources of electricity. Their main task is to ensure a normal, proper shutdown of electrical appliances in the event of an unexpected power outage. They must also reliably protect the equipment from all types of interruptions that occur in electrical networks, namely:

• voltage spikes
• high voltage emissions
• the so-called "subsidence" voltage
• in case of power failure,
• replanting
• run out of frequency.

Today, almost every home has a personal computer. According to studies, it is he who is exposed to about 120 abnormal situations every month, the cause of which is precisely the voltage drops.

Uninterrupted power helps to completely forget about all the above problems. The tasks of the UPS are as follows:

• absorb a small amount of short-term surge voltage,
• filter the supply voltage, reduce noise,
• provide backup power to the load for a certain amount of time after loss of voltage in the network,
• protect devices connected to the network from overload and short circuit.

But in order to provide full protection, backup power sources must be connected to the network. The devices themselves are already connected to them. UPS converts the flow of electricity in such a way that it is optimal for the full operation of the device.

Personal power supply system is the best option for a country house.

Autonomous sources of electricity are relevant in the event that it is simply unprofitable for a person to hold a power line and connect to the centralized power supply networks. For example, if you have a cottage that is located too far from the centralized power supply networks, and you go to rest in these places as far as possible, it is better to create your own autonomous power supply system. She will be able to provide you with a number of advantages, namely:

• no need to pay for network connection
• You will not depend on the price of electricity,
• You will generate electricity when you need it.

What should the autonomous power supply system include?

1. Source of energy. As a rule, there may be several or one sources at once. This may be a photovoltaic battery, a liquid-fuel generator GTK, working on gasoline or diesel fuel, or a wind power plant. The main can be any of the above sources, others can be used as additional.
2. Battery is a necessary element in the system of autonomous power supply. Even though the main source of energy is available in the system, the presence of a battery will allow it to be turned on for a certain amount of time, and electricity will flow continuously.
3. Inverter. It is a device that commutes DC to AC. It is necessary in cases where the equipment in the house consumes 220 V or if consumers are located at a considerable distance. In this case, there are so-called interference and loss.
4. AB charge controller. Needed in order to prevent overdischarge and overcharge. Very often, such a controller is built into the inverter.
5. Load. During connection to the autonomous power supply system of various devices, it is necessary to know that the devices must be energy efficient. As an example, fluorescent lamps. They are recommended to use for the reason that incandescent bulbs consume 4 times more electricity.

If you want to forget about the problems with voltage once and for all, extend the life of the devices installed in your cottage or house, autonomous power supply systems, uninterruptible power supplies and electric generators - this is what you need.

Sometimes it is very difficult to find a company that can offer everything at once. But if you did not find what you were looking for, it is enough to contact our consultant, who will give answers to all your questions.

With us, your devices, even with strong voltage drops, will work stably, and in the event of a total power outage, you will be able to correctly complete the session of the personal computer and have time to save all the data that might be lost.

Autonomous power supplies
  Autonomous power sources - a pledge of stable and durable operation of your equipment!

Today, both private users and large industrial enterprises are striving to have an autonomous source of electricity supply. This is due, primarily, to the possible difficulties of electricity supplying organizations with ensuring uninterrupted supply of electricity. Prolonged interruptions in power supply not only lead to financial costs, but can also be a threat to human life if outages occur in medical institutions or in hazardous and harmful technological production.

The main reasons for the presence of independent sources of electricity

Low quality of current (sharp jumps, drops, fluctuations, etc.) received from the energy supplying organization,

The presence of consumers of the special and first category requiring uninterrupted power supply,

Lack of connectivity to existing power grids.

The main advantage of autonomous power supply is the uninterrupted operation of technological equipment. Autonomous sources can be used both as a primary and as a backup source. An emergency source is equipped with an ATS device capable of supplying voltage to a de-energized section of the power grid in a few fractions of seconds.

Varieties of autonomous sources

The source of electrical energy may be:

Diesel or gasoline generators,

Engines in power plants can be used, both gasoline and diesel. The first, as is known, are more economical, start up easier, and are characterized by a more significant service life. But their cost is about 2-3 times higher than gasoline ones of similar power. Therefore, diesel power plants are recommended to be used in cases when interruptions in power supply occur frequently enough, which requires long-term station operation. Otherwise, it is better to use gasoline generators.

Solar panels today are installed on private homes and cottages, as a home power plant, and can be used as a primary or backup source of electricity. They do not require significant costs for the production of electricity, the generation of electricity in them occurs almost "for nothing". The disadvantages of these devices include a large amount of start-up financial investments, besides the peculiarities of saturation with solar energy create some difficulties in their operation. This is due to the fact that the Sun is able to shine not all year round, but only during the day and only in clear weather, therefore, complete with photovoltaic batteries use batteries designed to accumulate electricity, and converters are devices that convert DC voltage from batteries to alternating 220V, 50 Hz.

Wind and hydrogenerators are equipment that has been used for a long time to generate electricity. Their use is limited by various wind activity of the area and the presence of reservoirs with active moving water flow. Also, their effective operation involves the use of additional equipment (batteries, converters, etc.).

Almost 100% reliability of the power supply system is ensured when working in parallel with external power grids. Own generator set provides energy independence, which allows to increase the service life, the duration of the equipment operation period by 25-30%.

Autonomous power supply sources
  Autonomous power supply sources Today, both private users and large industrial enterprises are striving to have an autonomous power supply source. This is due, in