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HVDC Three Gorges – Changzhou
The HVDC Three Gorges – Changzhou is an long bipolar HVDC transmission line in China for the transmission of electric power from the Three Gorges power plant to the area of Changzhou. The transmission line went into service in 2004. It runs from the static inverter station, Longquan, away from the Three Gorges power plant to the static inverter plant, Zhengping, near Changzhou. The HVDC Three Gorges-Changzhou is a bipolar 500 kV powerline with a maximum transmission power rating of 3,000 megawatt The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), quantify the rate of Work ...s. A part of the line is the Yangtze River Crossing Wuhu over Yangtze River using tall pylons. The electrode at Chujiahu is also used by HVDC Hubei - Shanghai for grounding. Sites External links ABB Three Gorges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Gorges Dam
The Three Gorges Dam (), officially known as Yangtze River Three Gorges Water Conservancy Project () is a hydroelectric gravity dam that spans the Yangtze River near Sandouping in Yiling District, Yichang, Hubei province, central China, downstream of the Three Gorges. The List of reservoirs by volume, world's 27th largest dam by reservoir volume, and the List of largest power stations, world's largest power station by installed capacity (22,500 Megawatt, MW), the Three Gorges Dam generates 95±20 TWh of electricity per year on average, depending on the amount of precipitation in the river basin. After the extensive monsoon rainfalls of 2020, the dam produced nearly 112 TWh in a year, breaking the previous world record of ~103 TWh set by the Itaipu Dam in 2016. The dam's body was completed in 2006; the power plant became fully operational in 2012, when the last of the main water turbines in the underground plant began production. The last major component of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission Power Rating
Transmission or transmit may refer to: Science and technology * Power transmission ** Electric power transmission ** Transmission (mechanical device), technology that allows controlled application of power *** Automatic transmission *** Manual transmission * Signal transmission, the process of sending and propagating an analogue or digital information signal ** Analogue transmission, the process of sending and propagating an analogue signal ** Data transmission, the process of sending and propagating digital information ** Signaling (telecommunications), transmission of meta-information related to the actual transmission * Monetary transmission mechanism, process by which asset prices and general economic conditions are affected as a result of monetary policy decisions * Pathogen transmission, the passing of a disease from an infected host individual or group to a particular individual or group * Cellular signaling, transmission of signals within or between living cells * Heredity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 2004
Energy () is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, the internal energy contained within a thermodynamic system, and rest energy associated with an object's rest mass. These are not mutually exclusive. All living organisms constantly take in and release energy. The Earth's climate and ecosystems processes are driven pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HVDC Transmission Lines
A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages between 100 kV and 800 kV. HVDC lines are commonly used for long-distance power transmission, since they require fewer conductors and incur less power loss than equivalent AC lines. HVDC also allows power transmission between AC transmission systems that are not synchronized. Since the power flow through an HVDC link can be controlled independently of the phase angle between source and load, it can stabilize a network against disturbances due to rapid changes in power. HVDC also allows the transfer of power between grid systems running at different frequencies, such as 50 and 60 Hz. This improves the stability and economy of each grid, by allowing the exchange of power between previously incompatible networks. The modern form o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power Infrastructure In China
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of either a positive or negative electric charge produces an electric field. The motion of electric charges is an electric current and produces a magnetic field. In most applications, Coulomb's law determines the force acting on an electric charge. Electric potential is the Work (physics), work done to move an electric charge from one point to another within an electric field, typically measured in volts. Electricity plays a central role in many modern technologies, serving in electric power where electric current is used to energise equipment, and in electronics dealing w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity Pylon
A transmission tower (also electricity pylon, hydro tower, or pylon) is a tall structure, usually a lattice tower made of steel that is used to support an overhead power line. In electrical grids, transmission towers carry high voltage, high-voltage transmission lines that transport bulk electric power from generating stations to electrical substations, from which electricity is delivered to end consumers; moreover, utility poles are used to support low voltage, lower-voltage electric power transmission, sub-transmission and distribution lines that transport electricity from substation, substations to electricity customers. There are four categories of transmission towers: (i) the suspension tower, (ii) the Dead-end tower#Termination pylon, dead-end terminal tower, (iii) the Dead-end tower, tension tower, and (iv) the transposition tower. The heights of transmission towers typically range from , although when longer spans are needed, such as for crossing water, taller towers are s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yangtze River Crossing
The Yangtze River power line crossings are overhead power lines that cross the Yangtze River in China. There are at least three power line crossings on the Yangtze River at Jiangyin, Nanjing, and Wuhu. The towers of the crossing in Jiangyin are among the highest in the world. Jiangyin One exists at Jiangyin, Jiangsu Province, China. Each pylon is situated at and at . It is a section of the 500 kV power line from the Yancheng power station to the Dou Shan substation in the province of Jiangsu. The power line section running over the river has a span width of . It is carried by two tall suspension towers, each weighing 4,192 tonnes. (for comparison, the towers even surpass the height of the Eiffel Tower, which is , including antenna). They are identical lattice towers of square cross section with an area of × 68 m at the base and × 8 m at the top. The pylons carry four conductors on the lower crossarm, above ground, with a length of and two conductors on the upper cross ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megawatt
The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), quantify the rate of Work (physics), energy transfer. The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish people, Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own Watt steam engine, steam engine in 1776, which became fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one meter per second against a constant opposing force of one Newton (unit), newton, the rate at which Work (physics), work is done is one watt. \mathrm. In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bipolar Electricity Transmission
A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages between 100 kV and 800 kV. HVDC lines are commonly used for long-distance power transmission, since they require fewer conductors and incur less power loss than equivalent AC lines. HVDC also allows power transmission between AC transmission systems that are not Synchronization (alternating current), synchronized. Since the power flow through an HVDC link can be controlled independently of the phase angle between source and load, it can stabilize a network against disturbances due to rapid changes in power. HVDC also allows the transfer of power between grid systems running at different frequencies, such as 50 and 60 Hz. This improves the stability and economy of each grid, by allowing the exchange of power between previously inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Changzhou
Changzhou is a prefecture-level city in southern Jiangsu, China. It was previously known as Yanling, Lanling, and Jinling. Located on the southern bank of the Yangtze River, Changzhou borders the provincial capital of Nanjing to the west, Zhenjiang to the northwest, Wuxi to the east, and the province of Zhejiang to the south. The population of the Changzhou Municipality was 5,278,121 at the 2020 census.Linked from the OEChere The city is the birthplace of Zhou Youguang who created the pinyin romanization system. History As approved by State Council on June 8, 1995, Wujin County was promoted to Wujin City, with the government set in Hutang Town. In 1999, as approved by the provincial government, Taixiang Town of Jiaoqu District was revoked and incorporated into Xueyan Town of Wujin City. Changcheu.jpg, Changcheu Prefecture between the Yangtze and Lake Tai, from Martino Martini's 1655 '' Novus Atlas Sinensis''. ChangzhouOldCityDistrict.jpg, The parks and pagodas of the ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Plant
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more Electric generator, generators, rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a Electrical conductor, conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, petroleum, oil, and natural gas to generate electricity. Low-carbon power sources include nuclear power, and use of renewable energy, renewables such as solar power, solar, wind power, wind, geothermal power, geothermal, and hydroelectricity, hydroelectric. History In early 1871 Belgian inventor Zénobe Gramme invented a generator powerfu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longquan
Longquan () is a county-level city and former county under the administration of the prefecture-level city of Lishui in southwestern Zhejiang Province, China, located on the upper reaches of the Ou River and bordering Fujian province to the southwest. Called Longyuan () before the Tang dynasty, Longquan adopted its current name because of the naming taboo of Emperor Gaozu, the founder of Tang whose personal name was Li Yuan (). Demographics Longquan has a population of around 270,000. There is an ''Ethnic Township'' set aside for the She-nation minority at Zhuyang (). Celadons and swords Longquan is famous locally for its swords and Longquan celadon ceramics, both of which are often regarded as historically the finest in China. Longquan celadon was one of China's finest ceramics from the Song dynasty until it fell out of fashion in the Imperial court during the Ming dynasty. Production continued but at lower quality. The swords made in Longquan (Longquanjian) are famous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
