To begin with, the OEL-820 power load optimizer is the newest type of device familiar to experts - a non-priority load disconnect relay, and the only one in the world designed for domestic use. Therefore, we will consider the traditional and new device, as a group of devices that solve the same problem.

For different manufacturers, these devices are also called: priority relay, non-priority load relay, priority load relay, etc.

Priority switchboards help in a situation when, when several energy-intensive consumers are turned on, the total power consumed by them exceeds the limit of allowed power. Priority switchboards are installed at the input to the electrical panel. Their principle of operation is to continuously monitor the power consumed by all consumers used ...

The issue of saving electricity and money to pay for it is becoming increasingly acute, especially with the introduction of social norms for electricity consumption. Therefore, citizens, homeowners and business leaders have to look for reserves to reduce electricity consumption.

However, it is impossible to completely abandon the use of energy-intensive electrical appliances - the traffic of which creates the bulk of the electricity bill. Therefore, you have to compromise in order to spend less energy (money) and maintain an acceptable level of comfort. However, one cannot deceive physics, and they have not yet learned how to get the energy of their air. And, therefore, the law of conservation of energy must be strictly observed. This means that if energy has increased in one place, then in some other place it has decreased by the same value. More recently, we talked about a new energy-saving device. ...

The ability to wirelessly transmit electricity has haunted scientists for over 190 years. In 1820, the Danish scientist Hans Christian Oersted in his experiments noted that the current flowing through the circuit causes the magnetic needle to deflect.

In 1831, Michael Faraday proved that a change in the magnetic flux passing through a closed circuit leads to the appearance of an electric current in it. Nikola Tesla at the beginning of the 20th century, on the basis of his experiments, first proved the possibility of wireless power transmission.

For more than a hundred years, scientists from different countries have conducted many experiments on the transmission of electrical energy over distances. In 2006-2007, WiTricity and Wrel wireless power transmission technologies were introduced. Since that time, companies have begun to introduce wireless recharging devices one after another ...

The article discusses the current state of the field of organic LED panels and the prospects for their widespread use for domestic lighting.

"The hatch opened, and the walls of the corridor lit up with a soft diffused light." This is a generalized quote from numerous science fiction novels in which the authors, emphasizing the unusual atmosphere, describe luminous extended surfaces. And now from fiction to reality: those who wish can make luminous walls for themselves even today, but it will cost a lot and will be extremely inconvenient. We are accustomed to overhead lighting, and the side lights irritate the eyes and disorient the person.

We know quite a lot about inorganic light-emitting diodes (LEDs) - now you can encounter them at every step. The situation with LEDs on organic compounds (OLED) is different: they relatively recently left research ...

Many are faced with a situation where when turning on several powerful consumers in apartments, cottages, offices and country houses, the machine switches off when overloaded.

Until recently, a simple solution to this problem did not exist. It was required to buy additional electric power, which is very expensive, and often impossible. Or install a priority relay, which is associated with significant time costs for the device, for the alteration of wiring, electrical panels and subsequent repair of premises.

However, there are household appliances that solve a complex problem without extra costs. Network load optimizers, for example, OEL-820, is a new type of priority relay designed to effectively reduce the power consumed by energy-consuming household appliances, prevent overload and shut down the machine ...

The desire of a person to surround himself with convenient and functional things is understandable and logical. Everyone wants to live in a solid house or apartment, work in a well-furnished office. But for many this is not enough. I want beauty, celebration, emotions. Bright LED trees were created specifically for those who appreciate beauty in the environment and setting.

What are LED trees? The following elements are included in the design of the LED tree: the frame imitating the shape of a tree or a bush made of a special alloy material, which is enclosed in a plastic shell and decorative elements are LED garlands with silicone tips stylized as leaves and flowers. A 24V transformer is attached to the products.

These decorative lighting designs are quick and easy to install. They can have any color, size and appearance - from a small bush to a "giant" ...

Not so long ago, in our markets, on the Internet, in some print media and even on television, an advertisement for a miracle device appeared, which, according to advertisers, can save up to 30-35% of electricity. What kind of device is this? How is it arranged? And is it really true that he is able to save so much energy?

At about the same time, in different regions, these devices appeared under different names. Here are the approximate names of these devices: SberBox, smartbox, Energy Saver, Pover Saver, Saving-box, Economy, etc. According to manufacturers, and accordingly distributors, it is enough to simply plug the device into a power outlet, and it starts to work, that is, save our hard-earned money.

The cost of this device, depending on the region of distribution and the "generosity" of sellers, ranged from $ 10 to $ 70. So, we purchased one of these devices in order to try to deal with it ...

It is necessary to warn right away: there is no mistake in the title, there will be no story about cosmic energy consonant with the name. We will leave it to esotericists and science fiction writers. And we will talk about the usual phenomenon with which we coexist alongside throughout life.

How many people know due to what processes the juices in trees rise to a considerable height? For sequoia, it is more than 100 meters. This transportation of juices to the photosynthesis zone occurs due to the work of the physical effect - osmosis. It consists in a simple phenomenon: in two solutions of different concentrations, placed in a vessel with a semipermeable (permeable only for solvent molecules) membrane, a level difference appears after some time.

And now from wildlife we ​​will return to technology. If sea and fresh water are placed in a vessel with a septum, then due to different concentrations of dissolved salts, osmotic pressure appears and the level of sea water rises ...