Transmission of electric power

Waterpower fared better. When electrical engineers demonstrated the possibility of long-distance transmission of electrical power between 1875 and 1885, waterpower suddenly assumed new importance. Many ot the best waterpower sites had been untapped because they were in remote regions far... 

Probably the most obvious application for superconductors is in the transmission of electrical power and it seems that that this is close to being a reality. There are many other potential applications in the power electrical engineering field, for example power generators, motors, transformers, leads and fault current-limiters. 

Actually it has been known for over seventy years that certain metals and alloys, when cooled to very low temperatures (around the boiling point of liquid helium, or 4 K), lose their resistance totally. However, it is not practical to use these substances, called superconductors, for transmission of electric power because the cost of maintaining electrical cables at such low temperatures is prohibitive and would far exceed the savings from more efficient electricity transmission. 

Aluminum. Aluminum is used extensively in modem India particularly in house wiring and the transmission of electrical power, about 50% of the production going for this use. All of the technology has been imported primarily from the United States. Production has increased from about 3000 metric tons in 1951 to 180,000 metric tons in 1977. It is estimated that the demand for aluminum in 1984 will be 400,000 metric tons. The demand is likely to increase dramatically since the per capita use in India is 0.4 vs. 22 kg in the United States and of 2.9 kg in the rest of the world. Aluminum today is produced in five producing plants, four of them in the private sector and one in the pubhc sector. The most serious problem with the aluminum industry is the pricing pohcy. By law, 50% of production goes to the government at a fixed price, so-called levy metal. The current levy price is 903 a metric ton vs. a production cost of 1,084 per metric ton. 

Floating power unit has been developed to produce electricity and heat and to transfer them to customers making use of the coastal infrastructure. Safe positioning and retaining of FPU is provided by the hydraulic-engineering structures. The coastal infrastructure includes structures and special devices for the reception and transmission of electric power and heat to users, and is operated co-jointly with an FPU. 

TK3001-TK3521 Distribution or transmission of electric power... 

Power Take-Off From Engine or Transmission. This type of system is limited to tmcks and there are several take-off means available. Most are some form of electric power generation equipment, belt-driven from the engine crankshaft, which produces either a regulated a-c voltage or rectified direct current for the compressor and fan motors in the body. 

As of 2000, it also looks as though more and more electric utilities are becoming interested in fuel cell stacks as local microgenerators to top up power from large power stations, without the need for long-distance transmission of electricity and its attendant expense and power losses. 

See also Electric Power, Generation of Electric Power Transmission and Distribution Systems Electricity, History of Transformers. 

See also-. Climatic Effects Consumption Domestic Energy Use Electric Motor Systems Electric Power, Generation of Electric Power, System Protection, Control, and Monitoring of Electric Power Substations Electric Power Transmission and Distribution Systems Government and the Energy Marketplace Regulation and Rates for Electricity. 

Italian-American physicist Nikola Tesla invents a motor that produces alternating current. This discovery changes the way electricity is transmitted over long distances. The first commercial, long-distance transmission of electricity takes place when a direct-current line provides power from Willamette Falls for street lights in Portland, Oregon. 

Transformers are electromagnetic devices that allow electrical power supplied at one potential to be transformed into electrical power at another potential. The potential or voltage may be stepped up (increased) or stepped down (decreased). For instance, in the usual transmission of domestic power, the potential in the transmission lines is greater than the load requirements and a step down transformer is used to reduce the potential at the end use point. 

The National Electrical Manufacturers Association consists of manufacturers of equipment and apparatus for the generation, transmission, distribution, and utilization of electric power. The membership is limited to corporations, firms, and individuals actively engaged in the manufacture of products included within the product scope of NEMA product subdivisions. 

Federal Power Act Regulates licensing of non-federal hydroelectric projects, as well as the interstate transmission of electrical energy and rates for its sale at wholesale in interstate commerce. It was enacted in 1920 and amended in 1935. 

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