Zastosuvannya jerel uninterrupted life. Basic rules for using a PC You can use the tool for uninterrupted life

As civilization begins to develop, it begins to have more and more energy, electricity, electric machines, factories, electric pumps, lighthouses on the streets, lamps in apartments... The appearance of radios, televisions, telephones, computers humanity has the opportunity to speed up the exchange of information, with even greater benefits I said that before the loss of electricity, the fragments now, in many outages, the loss of electricity is equal to the waste of the delivery channel information flow. This situation is most critical for low current galuzes, where the main tool of generation is computer networks.

It has long been proven that in a couple of months, the destruction of information that is saved on the computer exceeds the productivity of the PC itself. For a long time now, information has become a type of product - it is created, evaluated, sold, bought, accumulated, re-created... and is often spent for a variety of reasons. Apparently, up to half of the problems associated with the loss of information arise from software or hardware failures in computers. In other cases, the problems are associated with unknown electrical conditions in the computer.

Ensuring the good life of the components of the Zaporuk PC stable work come what may computer system. Depending on the form and clear characteristics of the hedging, depending on the choice of living components, a share of entire months of work can occur. Coming out of this decline, a further research methodology was developed, which became the basis for testing the clear characteristics of uninterrupted life blocks.

  1. GOST regulations
  2. Classification of DBZ (description, diagram)
    • Offline
    • Linear-interactive
    • Online
    • Basic types of pushing
  3. Physics
    • a. See the tension, formulate the breakdown:
      • Mitteva
      • Active
      • Reactive
      • Povna
  4. Testing:
    • Purpose of testing
    • Zagalny plan of carrying out
    • Parameters for verification
  5. Installation, vikoristan under the hour of testing
  6. Bibliography
GOST regulations

Everything that is connected with electrical lines, in Russia is regulated by the provisions of GOST 13109-97 (adopted by the Interstate Council for standardization, metrology and certification instead of GOST 13109-87). The standards of this document fully support international standards MEK 861, MEK 1000-3-2, MEK 1000-3-3, MEK 1000-4-1 and publication of MEK 1000-2-1, MEK 1000-2-2 in part of the world of electromagnetic properties in power supply systems and methods in name change code .

Standard indicators for electrical cuts in Russia, established by GOST, are the following characteristics:

  • voltage 220 V±10%
  • frequency 50±1 Hz
  • The coefficient of non-linear stress forms is less than 8% for a long hour and 12% for a short time

Discussed at the document typical problems electrical supply. Most often we have to run into the ground:

  • Sudden loss of power in the power supply line (voltage loss in the power supply line for an hour more than 40 seconds)
  • Sagging (short-term decrease in voltage to a value less than 80% of the nominal value for an hour more than 1 period (1/50 second) is followed by the inclusion of pressure voltage, which manifests itself as a decrease in the lighting lamps) and ski (short-term stress shift in the boundary by an amount greater 110% of the rated value for an hour more than 1 period (1/50 second), appear when the high voltage is turned on, appear as multiple lighting lamps) voltages of various voltages (typical for high places)
  • High-frequency noise of radio frequency interference of electromagnetic or other movement, the result of the operation of high-frequency devices, communication devices
  • Increasing the frequency beyond the permissible values
  • High-voltage short-term voltage pulses up to 6000V and duration up to 10 ms; appear during thunderstorms, as a result of static electricity, through genuine jumpers, there are no external manifestations
  • Vibration of frequency changes frequency by 3 or more Hz from the nominal (50 Hz), appear when unstable robot There is a power outage, calls may or may not appear.

All these factors can lead to the loss of thin electronics, and, as often happens, to the loss of data. Meanwhile, people have long learned to take care of: fringe voltage filters, “strips” to extinguish, diesel generators to ensure the supply of electricity to systems in the event of a loss of power on a “global scale”, they say, Dzherela uninterrupted life the main tool for protecting personal PCs, servers, mini-PBXs, etc. Let's talk about the remaining category of devices and language.
Classification of DBZ

You can “divide” the DBZ according to the different signs, the strength, the tightness (or the area of ​​congestion) and the type of action (architecture/device). These methods are closely linked one to the other. Due to the tightness of the DBJ, they are divided into

  1. Dzherela uninterrupted life little effort(with full power 300, 450, 700, 1000, 1500 VA, up to 3000 VA, including on-line)
  2. Low to medium tension(at full load 3-5 kVA)
  3. Medium tightness(at full load 5-10 kVA)
  4. Great effort(at full load 10-1000 kVA)

Based on the principle of structure, Nina Vikorist’s literature identifies two types of classification of means of uninterrupted life. Based on the first type, DBZh are divided into two categories: on-lineі off-line, which, in their own way, are divided into reserveі linear-interactive.

Similar to the other type, DBZh are divided into three categories: reserve (off-line or standby), linear-interactive (line-interactive) DBZh with double voltage reversals (on-line).

We will use another type of classification.

Let's take a look at the difference in types of BDZ. Dzherela reserve type We follow the circuit with a switching device, which in normal mode ensures the connection of the power supply to the current level of life, and in emergency mode, transfers it to power from rechargeable batteries. The advantage of this type of DBZ is its simplicity, not much - a non-zero hour of switching between batteries (about 4 ms).

Linear-interactive DBZ vikonani behind a circuit with a switching device, supplemented by an input voltage stabilizer based on an autotransformer with windings that are interconnected. The main advantage of such devices is the protection of voltage from increased or decreased voltage without going into emergency mode. Not many such devices have a non-zero (about 4 ms) hour of switching to batteries.

DBZh with sub-dilutions The stress is caused by having to enter the entrance Voltage change The first step is rectified on a constant basis, and then, with the help of an additional inverter, it is changed again. The rechargeable battery is permanently connected to the output of the rectifier and the input of the inverter and live in emergency mode. In this way, it is possible to achieve high stability of the output voltage regardless of the fluctuation of the input voltage. In addition, disturbances in storminess, which explain the rate of life, are effectively accommodated.

Practical DBZh of this class when connected to the limit zminnogo struma behave like linear vantage. The advantage of this design is that you can add zero hours of alternation to the life of the batteries, minus a reduction in the CCD for the cost savings when the voltage is reversed.


Physics

All electrical engineers have different types of stress: mitteva, active, reactiveі povna. Mitt's straining is calculated as the addition of the voltage voltage value and the flow voltage value for a certain time, so that

So, since in lancius with support r u = ir, then

The average strength of the lancet over the period, which appears to be the same as that of a stationary warehouse mitte.

The average pressure over the period of time is called active . The unit of active voltage volt-ampere is called watt (W).

It is clear that it is called active. Fragments of U=Ir, then


Make the most active tension understand under the pressure of the device.

Reactive tension a value that characterizes the intensity that is created in electrical devices by the infusion of electromagnetic field energy. For the sinusoidal struma, there is a previous additional struma that flows, and the voltage on the sinus of the phase between them.

Quite a bit of tension ¦ total tension is associated with vantagements (both active and reactive warehouses). It is calculated as the addition of the mean square value of the input flow and voltage. Unit VA (volt-ampere). For the sinusoidal struma the ancient

In fact, on any electrical device there will be a label with the intended purpose or increased straining devices, and active straining.
Testing

Basic meta testing¦ demonstrate the behavior of the tested DBZh in real minds, the dates of the appearance of additional characteristics, which are not reflected in the official documentation on the device, in practice, identify the influx of various factors into the DBZh robot and, perhaps, help to determine All with the choice of one or the other for uninterrupted life.

Regardless of those who recommend choosing a BDZ at this time, it is indisputable, during testing we are required to first look at a number of additional parameters, which you should ask before purchasing equipment, in other words, for the need to speed up the selection of selected methods and testing parameters and create a basis for future analysis of the entire life path of systems.

The general plan for conducting testing looks like this:

  • Vkazivka for the class
  • Insertion of the manufacturer's statements of characteristics
  • Description of delivery contents (availability of equipment, accessory cords, PZ)
  • Short description from the outside looking in DBZ (functions included on the control panel and switching of sockets)
  • Type of batteries (from the designated capacity of the batteries, which can be maintained/not maintained, their name, the possibility of interchangeability, the possibility of connecting additional battery packs)
  • "Energetic" test warehouse

During the testing process it is planned to check the following parameters:

  • The range of input voltage at which the DBZ operates in a moderate manner and does not cross over to the batteries. A larger range of input voltage reduces the number of DBZ transitions to the battery and increases service life
  • An hour of battery life. The shorter the time of interruption, the smaller the risk of getting out of the way of the vantage (device connected through the DBZ). The complexity and nature of the mixing process largely indicate the possibility of normal continuation of work installation. For computer navigation, the acceptable time for interruption of life is 20-40 ms.
  • Oscillogram of mixing to the battery
  • Hour of switching between the battery and external life
  • Oscillogram of interconnection between battery and external life
  • An hour of work in offline mode. This parameter is determined inclusive of the capacity of the batteries installed in the DBZ, which, in turn, increases with the increase in the maximum output voltage of the DBZ. For the safety of autonomous eateries, two current computers SOHO standard configuration has a length of 15-20 min, the maximum output tension of the DBJ is approximately 600-700 VA.
  • Output voltage parameters per hour of battery operation
  • Shape of the impulse to the discharge of the battery
  • Pulse shape at the end of battery discharge
  • Range of output voltage DBZ when changing input voltage. The narrower this range, the smaller the influx of change in input voltage to the voltage, so live
  • Stabilization of output voltage
  • Filtration of output voltage (as it is)
  • Behavior of the BDZ when revantaged at the exit
  • Behavior of BDZ in case of stress
  • Calculation of KKD DBZh. Indicated as a bearing on the stress of the device until the stress is reduced in the form of a life-giving device
  • Coefficient of nonlinear changes, which characterizes the stage of voltage waveform in the sinusoidal stream
    • 0% sine wave
    • 3% of the confusion is not noticeable
    • 5% confusion with the eye
    • up to 21% trapezoidal or step waveform
    • 43% signal has a rectangular shape
Installation of the bathroom

When tested not with real workstations and servers, but with equivalent conditions, there may be a stable nature of the coefficient of vicoristic tension, close to 1. The tests carried out show the following set:

Bibliography
  1. GOST 721-77 Energy supply systems, boundaries, devices, conversion and reception of electrical energy. Nominal voltage over 1000 V
  2. GOST 19431-84 Energy and electrification. terms and meaning
  3. GOST 21128-83 Power supply systems, boundaries, devices, conversion and reception of electrical energy. Nominal voltage up to 1000 V
  4. GOST 30372-95 The value of technical features is electromagnetic. terms and meaning
  5. Theoretical electrical engineering, view. 9th, corrected, M.-L., publishing house "Energy", 1965
  6. Company advertising materials
  7. Internet resource

I love you, my beloved readers! In today's Russian realities there are rulers desktop computers There are problems with uninterrupted power supply. Virishity Qiu problem You can get help for uninterrupted life. Its diversity in the computer market allows you to customize DBZ to suit your specific needs. We’ll talk about those DBZ and those who are responsible for uninterrupted food supply in this article.

DBZ, or a device for uninterrupted life, is a device that functions as an energy accumulator. In case of power outages, the DBZ automatically switches the computer's power supply to the power supply from the recharged batteries, which allows you to correctly complete the work and save all necessary documents.

Variety of resources for uninterrupted life

Uninterruptible is your guarantee of the security of documents and computer components as a whole. Even if the computer is not connected correctly, you may be harmed hard drive, і motherboard, that RAM.

Because of the fact that there was uninterrupted food, we got along. Let's move on to the next meal.

How do BDJs happen?

Uninterrupted living conditions are divided into three types:

  1. Offline DBJ;
  2. Linear-interactive DBZ;
  3. Online DBZ (DBZ with additional transformations).

Let's take a closer look at the skin from the types of uninterrupted skin. This information will help you when choosing DBZh for your needs.

Offline DBJ

Robot principle this type The power supply is automatically re-microcircuited by the computer or other connected device due to the batteries being recharged when connected to external power supply.

Most often, the role of the transfer pump is played by a mechanical relay, in connection with which you can feel the sound that clicks when the DBZ switches from the external power supply to the batteries and vice versa.

This type of appearance has become widespread among ordinary employees and in offices.

Before pros Such DBZ can be characterized by simplicity, compactness and low cost. The main minus It is impossible to stabilize the input voltage, so your computer will not be damaged due to sudden changes in voltage. In this species, the wear of the rechargeable batteries is also avoided.

Linear-interactive DBZ

This type of uninterruptible power supply is stagnated in most surges to protect the power supply and other telecommunications equipment and groups of computers.

The main feature of these devices is the ability to regulate the output voltage without connecting to batteries, regardless of the voltage (increased or decreased) at the input.

Pros This type of DBZh is small in size, low in varity, automatic regulation tension, economy.

Ale є in nogo і minuses– it is clear that the rechargeable battery is permanently over-microcircuited, it is impossible to adjust the shape of the output voltage during the hour of operation in accordance with current life standards, the change in the output voltage is carried out step by step.

DBZh with sub-dilutions

This type of DBZ is based on the conversion of the voltage of the two: the input exchange voltage is converted to a constant voltage, and then the constant voltage is converted to a standard exchange voltage and is supplied to the device.

Get stuck Danish species there, where a standard voltage is required, and the devices that need life are capable of life. Devices can range from: primary workstations, file servers, edge structures otherwise you are able to obtain food.

Pros The online DBZ has the following features: complete control of the input and output voltage, zero-hour switching to the batteries, the connection of the device does not interfere with the external power supply.

Minuses The same: road, folding design, generating electrical energy “on oneself” in the mode of sub-conversion.

For home and office, it is entirely the first type of DBZh. If you have financial flexibility, then I would recommend you the other look. This is the most reliable type of protection for computer equipment from unclear voltage.

Main characteristics of DBZ

DBZh has a number of basic characteristics so that you can gain respect when purchasing. Let's take a look at them below.

  1. Pushing. This characteristic absolutely indicates how possession can be connected to any DBZ. In the future, choose a dzherel from a reserve for tightness. Let it go unnoticed possible problems with constant straining.

Zazvichay characteristics given indicated by the value VA or W. If the value is indicated in VA (VA), then multiply її by 0.6 to get a value larger than what we understand.

  1. Type DBZ. I learned more about the types of uninterruptible workers. We have come to the conclusion that the most optimal would be DBZh from various transformations, but for home needs an offline or linear-interactive device would be sufficient.
  2. Hours of operation on batteries. This value is very important, the fragments from it lie, since the computer has been running for a long time without external life. Whenever possible, autonomous robots are installed in the range of 5-30 units. Please note that with maximum demand on the DBZ, the hour of work without electricity is significantly reduced.

These three characteristics are the most important. Creamy DBZh still has no characteristics. For example, when choosing a power supply in a store, pay attention to the lifespan installed in the device, its display and additional interfaces (RJ-11, USB), how many batteries are installed and others.

Frequently encountered problems

  1. The biggest problem that most often arises from DBZh is that it doesn’t go well rechargeable battery. The battery that is running can be identified by the fact that the uninterruptible power supply stops working - when the electricity is turned on, the computer immediately freezes. Also, a faulty battery may behave differently: the uninterruptible power supply does not turn on at all, but instead turns on and beeps continuously. I wrote about how to change the battery in a power supply. It says about a specific DBZ, but the principle of replacement for all devices practically does not change.
  2. The DBZ may not turn on at all through the burner because it burns out.
  3. If the engine of uninterrupted life starts normally, but the computer does not start up, turn over the darts, stinks may come out of the sockets.

I hope my article was a boon for you and you learned something new for yourself. If you have lost your food, you can put it in the comments.

The advancement was possible through a completely natural process. You can guess the standards for the design of two warehouses. Before the first step, it is important for everyone to protect themselves as much as possible from emergencies in the power system. Another warehouse is connected with the minds of robots navantazhenya. Here we can add the benefits of a stable and uninterrupted work intellectual and power electrical installation, reducing costs while living and otherwise. One of the effective technical solutions to the problem of power supply is an uninterruptible power supply system (UPS).

The main task of the DBZ is to ensure a constant supply of electricity at the moment when the luminosity parameters go beyond the norms that are regulated (supply, voltage displacement, shape value...). Vikonuyuchi ce zavdannya DBZh can:

  • connect to the measure of life and convey the tension to the vantage, vikory and power of the dzherelo;
  • live in a vantagement with a tight-fitting measure of life.

In road DBJs, the function of supplementing the energy consumption with electrical energy can be implemented (integrating the stress factor corrector).

Types of "uninterruptible"

There are three basic types of BDZ.

  1. Reserve DBZ(standby, offline, back-ups). The simplest and cheapest technical solution (for example, the popular APC Back-UPS CS 500). In times of significantly increased or decreased voltage, the DBZ is switched on to the 220V voltage and switches to the battery-powered operating mode. The main elements of offline DBZh: accumulators (battery), charger, Inverter, which drives the transformer, heating system, filter (Fig. 1).


    A)


    b)
    Rice. 1 Normal robot mode (a) and battery-powered robot mode (b) The advantage of offline DBZh is low power and high efficiency during robot operation. Nedoliky: high rhubarb protection of the output voltage (high harmonic ratio, ≈30% for a direct-current signal), the possibility of adjusting the parameters of the input voltage. The characteristics of the output voltage will be discussed in more detail below.)
  2. Interactive DBZ(eng. line - interactive). Є intermediate type between cheap and forgive offline DBZ and expensive, richly functional online DBZ (for example, ippon back office 600). In the offline mode, the DBZ interactively operates an autotransformer, which allows you to maintain the level of output voltage between 220V (+-10%) when the boundary voltage sags/increases (Fig. 2). As a rule, the number of voltage levels of an autotransformer varies between two and three.


    (A)


    (b)


    (IN)


    (G)
    Rice. 2 Operation of interactive DBZ at normal voltage circuit (a), at low voltage circuit (b), at increased voltage circuit (c), at low voltage circuit or at significant shift (d) Output voltage regulation This is implemented by means of over-micking on the outer line of the transformer winding. In case of deep sagging or significant shifting, or permanently increasing voltage, the DBZ class functions similarly to the offline class: it is connected to the circuit and generates an output voltage and energy cumulators Depending on the shape of the output signal, it can be either sinus or rectangular (or trapezoidal).
    Advantages of line - interactive in line with reserve DBZ: less hour of interruption to autonomous robot type of batteries; stabilization of the output voltage level. Disadvantages: lower efficiency factor per hour of operation during the cutoff, higher price (aligned with the offline type), poor surge filtration (impulse overvoltage).
  3. DBZh with sub-dilutions(English: double-conversion UPS, online). The most functional and expensive type of DBZh. Uninterruptible operation before switching on at any time. The incoming sinus stream passes through a rectifier, is filtered, and then inverted again. U lanci postynogo strum You can install a DC/DC converter. Since the inverter is always running, the delay in switching to the battery life mode is practically zero. Stabilization of the output voltage during voltage sags or dips is more clear, as opposed to stabilization line - interactive DBZ. CCD can be in the range of 85%÷95%. The output voltage often has a sine wave form (harmonic ratio<5%).


    Rice. 3 Functional diagram of one of the online options DBZH in Fig. Figure 3 shows the block diagram of the online DBZ option. In Merezheva, the tension here is straightened like a straightened straightener. The impulse voltage is filtered and then inverted. Online DBZ schemes may have one or more so-called bypasses (bypass switches). The function of such a switch is similar to the function of a relay: switching the current supply for operation in a battery or directly in a circuit.
    Based on the online structure, not only low-power single-phase, but also triphasic DBZh industries are created. The uninterrupted power supply of large file servers, medical equipment, and telecommunications is also dependent on the online structure of the DBZ.
  4. Special types of DBZ. Other specific types of DBJ are being explored. For example, ferroresonance did not prevent uninterrupted food. In this DBZ, a special transformer accumulates a charge of energy, which can be used for an hour of switching life between the batteries. In the same way that the energy of the DBZ elements is generated, the mechanical energy of the superflywheel is generated.

Main characteristics of DBZh.

  1. Pushing. Units of voltage rating: volt-ampere (VA), watt (W), volt-ampere reactive (VAr). It is clear that S is active, P is active and Q is reactive. Ribbon, which connects with tension
    S2=P2+Q2
    Pushing active(W) is spent on the core work, reactive (VAr) is not spent on the core work. Apparently, the full pressure is the maximum pressure, as the mother’s body is responsible for providing the necessary energy. The setting of active exertion to the maximum shows the intensity of the available electrical energy and is called the power factor (PF):
    (Lamps for frying, heating) is PF=1, the intensity is still active. PCs, microfiber stoves, air conditioners are toweled.
    Get an uninterrupted life supply for your computer (two PCs + two monitors). The complexity of the PC is easy to evaluate, knowing the complexity of the insurance of the life block. Let your PC have 450 W power supply units installed (power is active). With an unknown PF for a PC with a life block without PFC (Power Factor Corrector), PF can be taken equal to 0.65. Similarly, the PF of the monitor is taken to be equal to 0.65. The display voltage is active at 50 W. As a result, the work force of the co-worker is actively active (two work places)
    Р=450+50+450+50=1000 W
    Full tension (from formula 2):
    S = P / PF = 1000/0.65 = 1538 (VA).
    If the power supply units (BP) of the PC and the monitor are equipped with a tension factor corrector (PF=1), then the full tension S is more active.
    S=P=1000 (VA)
    To achieve the desired appearance of the PC, you can insure the DBJ without reserve of effort, based on the current facts:
  • Computer blocks of life are protected from vantage. In other words, a PC cannot handle the pressure greater than the stated pressure of a power supply.
  • Pressure on the life block – maximum pressure. In fact, in the unattended mode (immediately after startup), the PC maintains about 50% of its capacity.

Result.
Also, the required minimum parameters of the DBZh:

  • for PCs with life blocks without PFC - 1 kW/1540 VA.
  • for PC with living units with PFC – 1kW/1kVA.

For the first option, choose an uninterruptible power supply unit apc Smart-UPS C 2000VA (line-interactive DBZh 2 kVA/1.3 kW). For the other - DBZh Ippon Smart Winner 1500 (1.35 kW) or Eaton 5SC 1500 VA (1.05 kW).
When deteriorating, it is important to apply short-term movement of tension such as an electric motor. At the moment of starting the jets, Istart is five, this time increasing for the nominal In:
Istart=(5÷7)*IN


Features of stagnation.

The uninterrupted life cycle for a combustion boiler, as well as the uninterrupted life cycle for gas boilers, may be specific due to the operating modes of the neutral conductor. Most often, boiler automation requires the connection of a neutral circuit. On the right, the lancet control of the half-pin of the connections to grounding and in the four-conductor circuit 220V neutral conductor and grounding of the boiler in the terminal frame are short-circuited through physical ground. However, when the neutral is broken or when the zero is mechanically connected to the zero of the life measure (autonomous robot offline DBZ), the half-control lance appears to be broken. To resolve this problem, possible solutions:


Visnovki

The first point in choosing a solution for uninterrupted life is the nature of the environment (DBZ for a computer, for combustion boilers...). For general use and devices that replace the electric motors of the alternating jet, you should choose roads and functional online DBZ. For PCs and office equipment, use cheaper line-interactive or back IPB. The next step to choosing is calculating the workload and hours of work on the DBZ batteries. It is also important to note the possibility of vicorising a scratchy zero. When forming the final solution, the popularity of brands in the market is determined: the leader APC accounts for approximately 50% of all sales, followed by Ippon, Eaton Powerware, and Powercom.

The main purpose of the uninterruptible life cycle (UBJ) is to quickly ensure the life of equipment in the event of interruptions in the power supply. Connecting computers via DBZ is accepted everywhere. True, for rich people this is a kind of “garden rule”, and a practical substitute for this ritual fades away from them. “Well, DBZ protects the computer from power strips...”. Let’s try to figure out: what, why and how does it protect the core of uninterrupted life?

Based on the internal structure and logic of the robot, all DBZs are divided into three classes: passive, linear-interactive and DBZs with subordinate transformations. Obviously, they have different levels of ability to cope with power cuts and fit into different price categories.

Passive(stand-by, VFD, back-UPS, reserve) dzherela - the simplest and the cheapest. The life circuit of the battery is probably closed, and it starts up due to the low voltage in the electrical system. The hour of switching from work in between to work in battery becomes tenths of a second, and the output signal during work in battery noticeably rises to the “correct” sine wave. As a rule, at the input of such DBZs, a simple filter is installed. The first one often smoothes out impulse transients, while the other one is responsible for responding to a significant increase in electrical voltage. Passive DBZ are intended for the life of home and office PCs. A slight dip in the output voltage at the moment of switching to the battery by the computer life units is not terrible.

Linear-interactive(line-interactive, VI, Smart-UPS) DBZ are distinguished by the fact that in them the life circuit from the battery is permanently turned on. When there is a voltage drop at the input of the “uninterruptible power supply”, its output sockets may immediately switch to the internal switch - for devices that are in use, this transition is practically imperceptible. In addition, many linear-interactive DBZs built automatically supply the output voltage of 220 V. There are two ways to do this.

As long as the voltages are between 175 and 275 V, the AVR (Automatic Voltage Regulation) mechanism operates. When the input voltage is reduced by 10 to 25% below the nominal value, the DBZ moves the output voltage by 15%. When the input voltage is increased by 10 to 25% above the nominal value, the DBZ reduces the voltage by 15%. If the voltage exceeds the limit values, the linear-interactive DBZ switches to live power from the battery. In this mode, continue to operate until the voltage returns to normal or the battery is discharged. However, such DBZs cannot be easily considered as voltage stabilizers. Their “stabilization” mode is extremely short-lived!

U DBZh with sub-dilutions(double conversion, VFI, Online-UPS) the output voltage is constantly seen from the converter, the converter is constantly flowing into the battery, and the battery is continuously charged in the process. In fact, the input and output of the DBZ are galvanically isolated from one side to the other, and the voltage at the output is stabilized. This is the most innovative, but at the same time, uneconomical scheme. The DBZ itself turns out to be expensive, great and important, it heats up greatly and is cooled by a fan, and the energy consumption during the hour of conversion reaches tens of hundreds.

DBZ with sub-reworkings is used especially for the life of servers and computers in critically important situations. Such models are rarely found in wide sales - call them for an appointment. More than anything, for the life of working computers you add passive, maximum, linear-interactive DBZ.

The tension of the elements of uninterrupted life is usually indicated in volt-amperes (VA, VA). To convert the values ​​to larger values ​​(W), you need to multiply the voltage in volt-amps by a factor of 0.6. For example, DBZh with a power characteristic of 600 VA provides living equipment with a maximum power of 360 W. If there is a great demand, a protection will be sent to the stream, and the uninterruptible will turn on. It is really important to add about 30% to the tension reserve. Thus, the largest DBZ of 600 or 650 VA is suitable for running a computer with a real consumption of 200-250 W and a monitor that draws another 30-60 W.

Since the placement of computers near the premises allows, it is better to use one heavy-duty DBZ instead of many small ones. For two office computers you will need a “breaker-free” power supply of approximately 1000 VA. To power three computers to stand in a row, one power supply of approximately 1400 VA is sufficient.

So what does DBZ protect?

It is difficult to cope with the interchange of pulse transients and filters in the life block of the computer and monitor. Two filters are better than one! Protection from overstrain is also important. If, for example, the neutral wire at the shield burns out, a voltage of up to 380 V may appear at the socket. In computer and monitor units, varistors and capacitors may burn out in this case. Repairing copies will take an hour. In theory, the DBZ is responsible for reacting to voltage surges earlier, rather than burning out the connections at the connections to the new technology.

Prote first place to come out zakhist data. When a computer crashes, all unsaved information is lost. DBZ allows you to either save open documents and correctly complete the work, or put the computer into hibernation mode. I'll save documents manually in the simplest way. Switching to life from batteries, DBZ begins to speak loudly. If you sensed such advances, turn it around and everything has been saved. Then wonder at the situation: either just turn off the computer, or put it into sleep mode.

To activate the automation, you need to connect the control port (USB or RS-232, depending on the model) of the uninterrupted life device to the computer with a signal cable and install the necessary security software on the computer. It’s a pity that many prosperous people don’t suspect such potential! The DBZ robot is controlled by a microcontroller. Its microprogram (firmware) continuously monitors the voltages and currents of the external lances, when turned on, and periodically tests the electronics and batteries during the hour of operation. There you can see in the control port the information about the flow mode of the robot, the mill of the DBJ components. The data cable goes to the computer, where it is processed by the monitoring program.

For robots with DBZ, it is necessary to completely vikorist the program, which is presented by the operator. For example, for APC (www.apc.com) the Power-Chute program, for Ippon (www.ippon.ru) - WinPower2009 and Ippon Monitor, etc. The program can be installed from the disk included in the kit, or better yet, download I'm updating the latest version from the publisher's website.

When setting up programs, you need to set the parameters for automatic activation. As a rule, there are two options to choose from: either turn on the computer one hour after switching to backup power, or turn on the computer one hour before the batteries are completely discharged.

What time does it take for the built-in “breaker-free” battery to drain?

This should be kept depending on the battery capacity and reduced voltage. Most mass installation models have one battery with a voltage of 12 and a capacity of 7 Ah. Theoretically, the DBZ with such a battery has an energy reserve of approximately 80 watt-year. To put it simply, it is due to the pressure of 80 W for about 1 year, 160 W for the first half of the year, 300 W for about 15 minutes, etc. In reality, due to the cost of processing, this hour is approximately twice as small.

For devices with a voltage of over 800 VA, two batteries of the same type or one with a higher capacity are installed. Tables and calculators for calculating the hours of autonomous robots for different models can be found on manufacturers’ websites. However, “offhand” it can be assumed that any model can achieve a nominal tension of approximately 5-15 min. If you need to ensure that your computer's batteries last for a long time, it is better to use heavy-duty batteries with rechargeable batteries. The performance is less than a third or a quarter of the nominal tension. Then, with such attention, low for yourself, you will be able to receive energy for the first time and beyond.

Regular equipment (switches, routers, NAS) has uninterrupted food service. Otherwise, when the energy is turned on, the border will “fall out”, and documents opened from the border folders will not be saved. You can power the switch from the DBZ of the nearest work station, if you want to correctly install for that a low-pressure “uninterruptible power supply”.

Battery service term. In the world of work, its capacity steadily decreases and after 3-5 hours of operation it drops to zero. Even before the DBZ indicator signals the need to replace the battery, it is clear that the battery stops “taking a charge.” The hour of autonomous robots is quickly running out. In principle, to save documents and run your computer correctly, a few things are enough. If the DBZ starts to turn on earlier, it is definitely time to change the battery.

Replacing the battery is difficult. For the popular APC brand DBZ and many others, the battery is located under a hatch or a cover that can be removed. In order to fit the battery into the Ippon, SVEN and similar design DBJs, it is necessary to unscrew the screws on the bottom and separate the halves from the body. In the instructions and on the official website you will most likely find a description of self-disassembly and replacement: as printer manufacturers, DBZ manufacturers deduct a portion of their income from the sale of “original” batteries from their installations authorized SCs.

Tim no less, all computer stores sell sealed lead-acid batteries in the most popular sizes. The brand and the manufacturer do not play a role: they are entirely standard ones. Open your power bank first and explain which battery is installed in it. Most “office class” DBZ (500-700 VA) are suitable for 12V 7Ah batteries with dimensions of 151×94×65 mm. When installing a new battery, try to tighten the terminals on the battery contact tabs. If the clamps have become loose, they can be carefully pressed out with pliers.

After installing the DBZ battery, it is necessary to calibrate it so that the microprogram evaluates and remembers the parameters of the new battery. Fully charge the battery by pulling. After this, unplug the plug from the socket so that the DBZ switches to autonomous life. Allow the battery to fully discharge until the “breaker-free” switches on by itself. As a matter of preference, it is better to use not a computer (although in extreme cases it is not permissible), but a few light bulbs with an intensity of about 300 W. Then reconnect until the end and turn off the DBZ - let the battery charge, and continue to operate the device in normal mode. I will use this procedure to calibrate the device and “train” the battery. After completing the “discharge-charge” cycle, the battery begins to maximize its capacity.

Are there telephone (RJ-11) and wire (RJ-45) sockets on most DBZ units?

Neither a telephone nor a local network is needed for uninterruptible services. Just as a “bonus” in one case with a device for installing pass-through filters of pulse converters for a telephone line and circuit. Connect one socket to the wall socket and turn off the phone otherwise. If there is high voltage in the telephone line, for example, during a thunderstorm, the filter smoothes out the voltage drop and steals the phone.

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