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Yunnan–Guangdong HVDC
The Yunnan–Guangdong HVDC is a high-voltage direct current transmission system connecting Chuxiong in the Yunnan to Suidong, Zengcheng in Guangdong, China. It is the first HVDC link in the world operating at a transmission voltage of 800 kV. The transmission line is operated by China Southern Power Grid. In 2007, the order to supply the system was awarded to Siemens Energy. The first pole was put into operation in December 2009 with the second pole to follow in June 2010. The transmission system has a transmission capacity of 5,000 MW and a rated DC current of 3,125 A. It has a total length of . It transmits electricity from the hydropower plants in the Yunnan to the Guangdong, including cities of Guangzhou and Shenzhen. Yunnan–Guangdong HVDC shares the grounding electrode together with HVDC Guizhou - Guangdong II at Linwu ( coordinates: 23°44′48″ N 113°17′09″E ). See also * Southern Hami–Zhengzhou UHVDC The Southern Hami–Zhengz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yunnan
Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the Chinese provinces of Guizhou, Sichuan, autonomous regions of Guangxi, and Tibet Autonomous Region, Tibet as well as Southeast Asian countries: Vietnam, Laos, and Myanmar. Yunnan is China's fourth least developed province based on disposable income per capita in 2014. Yunnan is situated in a mountainous area, with high elevations in the northwest and low elevations in the southeast. Most of the population lives in the eastern part of the province. In the west, the altitude can vary from the mountain peaks to river valleys by as much as . Yunnan is rich in natural resources and has the largest diversity of plant life in China. Of the approximately 30,000 species of Vascular plant, higher plants in China, Yu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guangdong
Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) across a total area of about , Guangdong is the most populous province of China and the 15th-largest by area as well as the second-most populous country subdivision in the world (after Uttar Pradesh in India). Its economy is larger than that of any other province in the nation and the fifth largest sub-national economy in the world with a GDP (nominal) of 1.95 trillion USD (12.4 trillion CNY) in 2021. The Pearl River Delta Economic Zone, a Chinese megalopolis, is a core for high technology, manufacturing and foreign trade. Located in this zone are two of the four top Chinese cities and the top two Chinese prefecture-level cities by GDP; Guangzhou, the capital of the province, and Shenzhen, the first special economic zone in the count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chuxiong City
Chuxiong City (; Chuxiong Yi Script: , IPA：) is a county-level city and the capital of the Chuxiong Yi Autonomous Prefecture, in Central Yunnan Province, China. Geography Chuxiong is about west of Yunnan's capital of Kunming on highway GZ65. Chuxiong City is nestled between mountain ranges on all sides in a plateau region at . Chuxiong City has a population of 130,000 inhabitants and the entire Chuxiong Prefecture has an estimated 2,542,530 inhabitants. Chuxiong is located between Kunming and Dali, with Dali about west of Chuxiong and Kunming about 120 km to the east. Lijiang is about a six-hour drive from Chuxiong, and Lugu Lake is about 11 hours north, on the Sichuan border. Administrative divisions Chuxiong City has 12 towns and 3 townships. ;12 towns ;3 townships * Shuju () * Daguokou () * Dadiji () Climate Chuxiong experiences a mild dry-winter humid subtropical climate (Köppen climate classification: Cwa), bordering on a dry-winter subtropical highland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zengcheng
Zengcheng District ( alternately romanized as Tsengshing) is one of 11 urban districts of the prefecture-level city of Guangzhou, the capital of Guangdong Province, China. History was established under the Qin following their conquest of the area, formerly held by the Baiyue tribes. Under the Ming, the northern area of the county was separated to form Longmen County, administered from Huizhou. The county was promoted to city status in 1993. In 2006, a western section of Zengcheng was severed to form Guangzhou's Luogang District, which was renamed Huangpu in 2014. On 12 February of the same year, Zengcheng was annexed to Guangzhou as a district. A riot of migrant workers occurred in Zengcheng in 2011. Climate Zengcheng's mild climate, fertile land, annual average temperature of 22.02 degrees and average yearly rainfall of make it suitable for tropical and subtropical crop growth. The district is noted for production of the lychee. Administrative divisions There are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Southern Power Grid
China Southern Power Grid Company Limited (CSG; ) is one of the two Chinese state-owned enterprises established in 2002 according to the precept to reform the power system promulgated by the State Council, the other being State Grid Corporation of China. It takes charges of participating in the investment, construction and management of power transmission, transformation and distribution covering China's five southern provinces of Guangdong, Guangxi, Yunnan, Guizhou and Hainan, while power generation is done by five other power generation groups. The company is headquartered in Guangzhou, Guangdong. Organizational structure China Southern Power Grid is organized in the following structure. Administrative Departments *General Office *Strategy and Policy Department *Procurement Department CAPEX *Planning and Development Department *Marketing and Trading Department *Human Resource Department *Finance Department *Operation and Technology Department *Safety Supervision Depa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HVDC
A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) 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. However, a 1,100 kV link in China was completed in 2019 over a distance of with a power capacity of 12 GW. With this dimension, intercontinental connections become possible which could help to deal with the fluctuations of wind power and photovoltaics. HVDC 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 run ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-voltage Direct Current
A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) 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. However, a 1,100 kV link in China was completed in 2019 over a distance of with a power capacity of 12 GW. With this dimension, intercontinental connections become possible which could help to deal with the fluctuations of wind power and photovoltaics. HVDC 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PennWell Corporation
Endeavor Business Media is an American business-to-business media company founded by Chris Ferrell and others in December 2017. The company is headquartered in Nashville, Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to th .... History Endeavor Business Media acquires and operates trade publications, websites, marketing solutions and events. In 2018 Endeavor acquired the publication assets of SouthComm and seven other companies. The company acquired several publications and events from British company Clarion Events, who had previously acquired these assets from PennWell Corporation, and from Informa Intelligence, a division of Informa, in 2019. References {{Reflist Publishing companies of the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Hami–Zhengzhou UHVDC
The Southern Hami–Zhengzhou UHVDC is an ultra high-voltage direct current power transmission line from the north-west to central China. Background It is the first ultra high-voltage project implemented by the Northwest China Grid Company, a subsidiary of the State Grid Corporation of China. Construction started on 13 May 2012. It went into operation in January 2014. Expected cost was 23.4 billion yuan. Design The line was designed and built by several different Chinese companies. Converter transformers and components were supplied by ABB Group, by XD Group, and by Siemens AG. Operation The transmission line starts at the Hami Nanhu converter station next to the Dananhu Power Station in Xinjiang and runs through Xinjiang, Gansu, Shaanxi, Ningxia, Shanxi and Henan provinces to Zhengzhou Zhengzhou (; ), also spelt Zheng Zhou and alternatively romanized as Chengchow, is the capital and largest city of Henan Province in the central part of the People's Rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 2010
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) 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). Common 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, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
