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Power Transmission: New Advances and Prospects

Once a person did not even imagine thatThere is electricity in nature, and now, when an accident occurs at a local substation, it is difficult for it to withstand several hours until it breaks down. People have long been accustomed to large transformers, poles and high-voltage lines, cords, cables and sockets and have not paid attention to them for a long time. All this is so firmly entered into our consciousness that we do not even think that the transmission of electricity can occur in some other way. Fortunately, among us there are geniuses who do not leave hopes to invent more advanced and sophisticated technologies, and constant perseverance and experiments allowed us to get very interesting results.

power transmission

Single wire power transmission

In 1990, the Russian engineer S.Avramenko conducted a series of successful experiments, as a result of which he was able to transmit electric power through a three-meter single-wire line, which would be enough to work with a load of 1.3 kW. The installation itself consisted of a generator operating at a frequency of 3-15 kHz and a step-up transformer. During the test, the inventor left one end of the transformer secondary winding free, and connected the second to the load, consisting of a transmission line with a diode bridge and an ordinary incandescent lamp. There were also options when the diode bridge was replaced by two diodes connected in anti-parallel. Subsequently, this scheme was called Avramenko fork.

The most curious circumstance of experimentswas that the transfer of electricity, and to be precise, its power, depended little on the resistance of the conductor. There is no clear scientific explanation for this fact, but imagine what prospects such superconductivity offers to humanity! Indeed, instead of copper wire, it will be possible to use water, earth, and even plastic, that is, any conductor, regardless of its resistance. Today, foreigners show great interest in the works of Avramenko and his colleagues, and the inventions themselves are marked by the N. Tesla gold medal and the gold medal at the Brussels Innovation Salon.

energy transfer

Energy transfer by air

High conductivity is good, but lackwires even better. Apparently, scientists from all over the world, who were inspired by Tesla's experiments to new discoveries, came to this conclusion. Nowadays, wireless transmission of energy is slowly moving from the category of science fiction to the most real reality. So, Intel in August 2008 at the IDF forum presented its new project - WiTriCity (short for Wireless Electricity). As a demonstration, the audience was shown a setup of two antennas, one of which created an electromagnetic field around itself, which, in turn, induced an alternating current in the circuit of the second antenna. This energy was enough to glow a 60-watt light bulb, located at a distance of 0.6 to 1 m.

wireless power transmission
Subsequently, the company developed wirelesschargers for mobile gadgets, operating at a distance of up to 2.5 meters, and promises to surprise us with novelties. Meanwhile, Korean scientists decided to create a wireless power supply system for any kind of electric transport. The new technology called OLEV (short for On-line Electric Vehicle) involves recharging municipal vehicles on the go, as well as in a parking lot and long-term parking. The new power transmission has been successfully tested and can soon be used in ports, airports, railways and in urban electric transport. As we see, new technologies are gradually being introduced into life, and, perhaps, in the future, our great-grandchildren will forget what adapters and tees are, and power lines and transformers will be seen only in pictures of history textbooks.