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Slobodan Gaborović
4,623 followers -
Quote: "The best is the rest" ("Just do it" is a distant memory).
Quote: "The best is the rest" ("Just do it" is a distant memory).

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- It is expected that the next step in cable development will be marked by cryogenic cables, which use the effect of superconductivity achieved when metals are subjected to deep freezing. At the liquid-nitrogen temperature of 77 K the active resistance of copper and aluminum decreases by a dozen times, and at the liquid hydrogen temperature of 20.4 K – by 200 times. Niobium (Nb) and its compounds (Nb 3 Sn, Nb 3 Al) experience the effect of superconductivity at the temperature of liquid helium 4.2 K. The liquefied gas cooling the conductors can be used for the insulation of cryogenic cables.
- The capacity of cryogenic transmission lines is evaluated at the range 10 to 100 GW.

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SREĆNA PRAVOSLAVNA NOVA 2017. GODINA! :-)
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МИР БОЖИЈИ, ХРИСТОС СЕ РОДИ! СРЕЋАН БОЖИЋ! :-)
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МИР БОЖИЈИ, ХРИСТОС СЕ РОДИ! СРЕЋАН БОЖИЋ! :-)
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Automatic Reactive Voltage regulator

With the rapid development of national economy and the improvement of people's living standard, people's demand for electricity is increasing day by day. It puts forward higher request to the reliability and quality of power supply. However. Distribution network construction is seriously lagging behind, the grid is weak, facilities aging, line length, small diameter, most of the power distribution transformers are high energy consumption, network loss is increasingly prominent.
Voltage quality is one of the important indicators to measure the power quality of power system, and its quality depends on whether the power flow distribution is reasonable or not. Due to the increasing load and the power supply, the network structure of the power system not only changes the network structure of the power system, but also changes the power distribution of the system. May even cause serious problems in local areas, the situation is generally low voltage level. This is not only related to the power system to provide users with power quality issues, but also directly affect the safety and economic operation of the power grid. At the same time, it is necessary to consider the power factor and voltage of the network, because the network power factor and voltage reduction will make the electrical equipment is not fully utilized, thereby reducing the transmission capacity of the network, and cause loss increase...
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