Uninterruptible Power Supplies (BBP) - what is the difference, how to choose the best, reviews

Uninterruptible Power Supply - what is it?

Nothing complicated, in fact, in the uninterruptible power supply are no sources. It's just a battery with a large reserve capacity and power management. In general, the UPS needed to stabilize the energy coming from the network, one that could not hurt system power supply unit and the main sites, and also to keep your PC in working order, if the energy is not absolutely. According to the method of operation are 3 different types of uninterruptible power supplies: standby, line-interactive and double-conversion UPS. For more details, we'll deal with each separately later.

Applications uninterruptible power supply

Basically uninterrupted power supply units are used to protect high-tech electronic systems - computers, servers, laptops. But also they can be found attached to any other electronics - TVs, media players, heating boilers and other devices.

Design and operation of uninterruptible power sources by type

As we said earlier, there are three main types bespereboynik. It should tell you a bit about how they work and which perform functions.

Standby UPS

May have the name "offline», Standby, back ups. The most simple device whose main task - to transfer the protected equipment battery backup for a short period of time. For example, to have time to complete the work PC. Passive filters are typically used for filtering in such systems the input voltage.

This helps to some extent to protect the equipment from the high-voltage pulse and electromagnetic interference. Once the voltage ceases to comply with the necessary for performance or even lost, the UPS immediately switches the equipment on the built-in battery.

Line-interactive UPS

The main difference between line-interactive UPS from the reserve - the ability to obtain the required output voltage, that is, to regulate it. In other words, where if subsidence has redundant UPS voltage switch to batteries, line-interactive will continue to work.

This type is practically suitable for a range of devices domestic destinations, for example, heating systems and appliances with induction motors. Basically, they can be used for computers, small household electronics and lighting.

UPS with double converter

They may be referred to as "online», online, double-conversion. Used for smooth operation of complex equipment, which critically on the quality of power supply. UPS performs double conversion - first input voltage is converted from AC to DC, and then vice versa, already with the required characteristics of the reference current. As such, switching to battery during a power outage on the network does not, as the batteries included in the permanent system. This is one of the main advantages of this type of UPS - Switching time on the battery is missing.

Such devices are much more than their previous counterparts, but may be adjusted not only voltage, but both the frequency as well as have a greater range of compatible hardware, which can work.

Differences uninterruptible power supply with external sources and built-in batteries

In fact, both types of externally virtually indistinguishable. Yes, and their characteristics are similar. But UPS with external batteries have the ability to connect additional batteries for extended operation without electricity. For this purpose, the housing has a special bus that allows you to connect external power sources. Of course, now there are models, and even without the battery, which then need to buy separately.

Manufacturers of uninterruptible power supplies

Now on the market who just can not be found. However, even here there are leaders and pioneers of the industry. A little rundown on these companies:

• APC. American manufacturer, absorbed in 2006 the brand Schneider Electric. As a result, UPS is now labeled as APC by Schneider Electric. The company is known around the world and was founded in 1981 by three engineers of the legendary MIT;
• Powercom. Also quite old player in the market. The birthplace of the company - Taiwan. In addition to development and production of UPS company creates comprehensive solutions for solar power and different types of stabilizers;
• Ippon. A relatively young company, dating back to 2001. Despite this, she has managed to enter the top five leaders in the UPS market;
• Delta Electronics. Simple layman hardly met this title, as the company's products are mainly focused on the industrial sector. They also produce a variety of frequency inverters, servo drives, controllers, and communication modules. Taiwan's history begins in 1971.

Popular models of uninterruptible power supplies

Article about uninterruptible power supplies would not be complete without a review of some of the most popular models of this product category.

APC UPS

APS is one of the oldest and most trusted manufacturers of high-quality and reliable uninterruptible power supply.

Back-UPS BX650CI-RS

Very accessible from the APC uninterruptible power supply unit. You can purchase it for 6140 rubles. Conversion type - line-interactive. Such bespereboynik is perfect for a home computer or TV. The output power of 390 watts. At full load, it can work out from the battery 1 minute at half - 8 minutes. Takeoff input voltage is in the range from 140 to 300 V. A switching network with a time the battery is 6 ms. Not the highest, but very good for home systems. At the same time can be connected to the device 4, three of which - through the battery.

APC Back-UPS BX650CI-RS

Smart-UPS SUA750I

More serious apparatus 500 watts. It costs 25,000 rubles. Type - line-interactive. The nominal operation of the apparatus can be guaranteed at a voltage in the range of 160 to 285 V. Can connect up to 6 devices, each of which will have a reserve battery. Bespereboynik perfect for PCs and its entire periphery.

Smart-UPS SUA750I

Uninterruptible power supplies Ippon

Chinese manufacturer does not lag behind the rest of the leaders, despite his youth. In their arsenal there are several interesting models.

Ippon Back Power Pro II Euro 850

Good budget bespereboynik for home PCs or TVs. You can buy it for 6350 rubles. voltage conversion type - line-interactive. Total power output - 480 watts. Can connect only two devices, both powered by batteries. Switches the device from mains to battery in 10 ms. To work in a no-power at full load, the UPS can in 1 minute. Suitable block of uninterrupted power supply for PC, simple video surveillance systems, monitors and TV.

Ippon Back Power Pro II Euro 850

Ippon Innova G2 1000

Buy uninterruptible power supply unit can be for 15,000 rubles, and he refers to the type of UPS is a double conversion. The output power is 900 watts. At full load operation of the battery can last for 3.5 minutes and at one-half - 10 minutes. 4 connector, each powered by a battery is available for connection. Tools input voltage is in the range from 100 to 300 V.

Ippon Innova G2 1000

How to choose a home bespereboynik

UPS in the home is not used as often as, for example, in the office or at work. Perhaps because at home we rarely work with critical data loss or disruption of which can lead to significant losses. And the quality of the mains voltage has improved markedly over the past few years. The most relevant of the UPS remains in the private sector, where the voltage may still vary over a considerable range, especially with the onset of cold weather. In any case, the expensive and sensitive equipment is better to protect against voltage surges and from turning off unexpectedly, and how to choose the UPS for different devices, we'll continue.

UPS for the computer

PC - probably the most popular device, which typically seek to protect users from unexpected shutdowns. There are two types of actual use - standby or line interactive. Yet, before selecting bespereboynik computer, you first need to conduct a little research. Firstly, it is necessary to find out how much and how often can skip the mains voltage. If this happens too often, then after you buy a cheap and easy backup of the UPS there is a possibility that the constant transitions in battery mode quickly wear it and will lead to the replacement. Therefore it is better to look in the direction of line-interactive models. Secondly, it is necessary to calculate the amount of equipment to be connected and the overall performance. The number of devices is determined by the number of output connectors of the UPS and the power, respectively, nominal power. It is recommended that the selection of an uninterruptible power supply option for 20-30% more than the actual total power of all connected devices. Sense to take an expensive UPS with long battery life is not. Limit these values ​​are not so high. 3-5 minutes will be enough to safely shut down any modern operating system.

Uninterruptible power supply for the boiler

The most optimal solution for heating boilers will be the choice of UPS double conversion. The fact that the boilers are very sensitive to the input voltage quality, and it is desirable to deliver them pure sine. Power experts recommend taking about 2-3 times more power boiler.

This is due to the fact that they can considerably exceed the rated value at startup inrush currents. As for the duration, then it all depends on the voltage of cleanliness in the home and frequency and duration of outages. If the voltage is too often is outside the acceptable boundaries of values, the battery capacity is better to choose more. The same thing - in the case of long and frequent power outages.

Answers to frequently asked questions on the uninterruptible power supply unit

Here we look at a couple of the most popular and interesting issues related to the UPS.

How to connect an uninterruptible power supply for your computer

It's pretty plain and simple. Before bespereboynik connect to a computer, you need to turn off the PC and remove the plug from the socket. In it you need to insert the plug on the UPS.

The back panel can range from 1 to 6 sockets for connecting devices. Here we need to connect the power cable from the PC. All are now the computer itself is connected to the network via UPS. If an uninterruptible power supply connector there is more, and the rated power is selected with a margin remaining in the connectors connect a monitor, a printer, or any other equipment.

The UPS with pure sine wave is different from other types of

The most important difference is that the UPS can be used pure sine for a wider range of devices. In particular, the only UPS that can output pure sine can be used for heating boilers, devices with transformer power supplies, motors, chokes and other demanding ideal signal instruments.

Typically, manufacturers clearly indicate that their UPS is capable of producing pure sine wave. Sometimes it can be present in title Smart consoles. Specifying this option in performance is a reflection of particular UPS, so beneficial to producers clearly state this. Among the types of blocks pure sine give all online UPS, part of line-interactive and very rarely - reserve.

If you have a personal experience in dealing with the uninterruptible power supply, you can share it in the comments.