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Vizag Back To Back HVDC Converter Station
The Vizag back-to-back HVDC station, or Visakhapatnam back-to-back HVDC station, is a back-to-back HVDC connection between the eastern and southern regions in India, located close to the city of Visakhapatnam, and owned by Power Grid Corporation of India. It consists of two independent poles, each with a nominal power transmission rating of 500 MW, referred to as Vizag 1 and Vizag 2. Vizag 1 was built by Alstom between 1996 and 1999 and has nominal DC voltage and current ratings of 205 kV, 2475 A. Its design is very similar to that of the Chandrapur back-to-back HVDC converter station. Vizag 2 was built by ABB between 2002 and 2005 and has nominal DC voltage and current ratings of 176 kV, 2841 A. Both Vizag 1 and Vizag 2 use air-insulated, water-cooled thyristor valves. On 31 December 2013, the Northern, Eastern and Western grids were synchronised with the Southern regional grid, creating a single synchronous AC grid over the whole of India. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia. Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago., "Y-Chromosome and Mt-DNA data support the colonization of South Asia by modern humans originating in Africa. ... Coalescence dates for most non-European populations average to between 73–55 ka.", "Modern human beings—''Homo sapiens''—originated in Africa. Then, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andhra Pradesh
Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to the north-west, Chhattisgarh to the north, Odisha to the north-east, Tamil Nadu to the south, Karnataka to the west and the Bay of Bengal to the east. It has the second longest coastline in India after Gujarat, of about . Andhra State was the first state to be formed on a linguistic basis in India on 1 October 1953. On 1 November 1956, Andhra State was merged with the Telugu-speaking areas (ten districts) of the Hyderabad State to form United Andhra Pradesh. ln 2014 these merged areas of Hyderabad State are bifurcated from United Andhra Pradesh to form new state Telangana . Present form of Andhra similar to Andhra state.but some mandalas like Bhadrachalam still with Telangana. Visakhapatnam, Guntur, Kurnool is People Capital of And ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Grid Corporation Of India
Power Grid Corporation of India Limited is an Indian central public sector undertaking under the ownership of Ministry of Power, Government of India. It is engaged mainly in transmission of bulk power across different states of India. It is headquartered in Gurugram. Power Grid transmits about 50% of the total power generated in India on its transmission network. History The Power Grid Corporation of India Limited was incorporated on 23 October 1989 under the Companies Act, 1956 with an authorized share capital of Rs. 5,000 Crore (subsequently enhanced to Rs. 10,000 Crore in Financial Year (FY) 2007–08) as a public limited company, wholly owned by the Government of India with 51.34% stake in the company as on 31 December 2020 and as principal electric power transmission company for the country. Its original name was the "National Power Transmission Corporation Limited", was charged with planning, executing, owning, operating and maintaining high-voltage transmission syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alstom
Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia and New Pendolino high-speed trains, in addition to suburban, regional and metro trains, and Citadis trams. Alsthom (originally Als-Thom) was formed by a merger between Compagnie Française Thomson-Houston and the electric engineering division of Société Alsacienne de Constructions Mécaniques in 1928. Significant later acquisitions included the Constructions Electriques de France (1932), shipbuilder Chantiers de l'Atlantique (1976), and parts of ACEC (Belgium, late-1980s). A merger with parts of the General Electric Company (UK) formed GEC Alsthom in 1989. Throughout the 1990s, the company expanded its holdings in the rail sector, via the acquisition of German rolling stock manufacturer Linke-Hofmann-Busch and Italian rail signall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABB Group
ABB Ltd. is a Swedish-Swiss multinational corporation headquartered in Zürich, Switzerland. The company was formed in 1988 when Sweden's Allmänna Svenska Elektriska Aktiebolaget (ASEA) and Switzerland's Brown, Boveri & Cie merged to create ASEA Brown Boveri, later simplified to the initials ABB. Both companies were established in the late 1800s and were major electrical equipment manufacturers, a business that ABB remains active in today. The company has also since expanded to robotics and automation technology. It is ranked 341st in the Fortune Global 500 list of 2018 and has been a global Fortune 500 company for 24 years. Until the sale of its Power Grids division in 2020, ABB was Switzerland's largest industrial employer. ABB is traded on the SIX Swiss Exchange in Zürich, Nasdaq Stockholm in Sweden, and the New York Stock Exchange in the United States. An ABB entity plead guilty for bid rigging in 2001, and the company has had 3 US Foreign Corrupt Practices Act bribin ... [...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] |
Visakhapatnam
, image_alt = , image_caption = From top, left to right: Visakhapatnam aerial view, Vizag seaport, Simhachalam Temple, Aerial view of Rushikonda Beach, Beach road, Novotel, Novotel Visakhapatnam, INS Kursura (S20), INS Kursura submarine museum, Vizag skyline, Kambalakonda wildlife sanctuary , etymology = , nickname = The City of DestinyThe Jewel of the East Coast , image_map = , map_caption = , pushpin_map = India Visakhapatnam#India Andhra Pradesh#India#Asia#Earth , pushpin_label_position = left , pushpin_map_alt = , pushpin_map_caption = , coordinates = {{coord, 17, 42, 15, N, 83, 17, 52, E, display=inline,title , subdivision_type = Country , subdivision_name = {{flag, India , subdivision_type1 = States and union territories of India, State , subdivision_name1 = Andhra Pradesh , subdivision_type2 = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chandrapur Back-to-back HVDC Converter Station
The Chandrapur back-to-back HVDC station is a back-to-back HVDC connection between the western and southern regions in India, located close to the city of Chandrapur. Its main purpose is to export power from the Chandrapur Super Thermal Power Station to the southern region of the Indian national power grid. It is owned by Power Grid Corporation of India. The converter station consists of two independent poles, each with a nominal power transmission rating of 500 MW. Both poles were built by GEC-Alstom between 1993 and 1997 and have nominal DC voltage and current ratings of 205 kV, 2475 A. The converter station is located from the eastern terminal of the Chandrapur–Padghe HVDC transmission system. The close proximity of the two converter stations meant that the control systems needed to be carefully coordinated, a task made more challenging by the fact that the two stations were built by different manufacturers. To address this problem a series of joint simulatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HVDC Sileru–Barsoor
The HVDC Sileru–Barsoor is a high voltage direct current transmission system between Sileru and Barsoor in India. It is in service since 1989 as the first HVDC line in the country. The HVDC Sileru–Barsoor is a bipolar HVDC with a voltage of 200 kV and a transmission rate of 400 megawatts. The HVDC Sileru–Barsoor couples two asynchronously operated parts of Indian electricity mains over a long overhead line, which was originally a double-circuit 220 kV AC line from which three conductors are paralleled. This HVDC line is not in use for a long time. On 1 January 2014, the NEW grid is synchronised with the Southern regional grid making this HVDC link redundant. 200 kV AC line of NEW grid can be directly connected to the 200 kV line of Southern grid bypassing the HVDC converter stations. Thus the energy losses taking place in the converter stations can be avoided and these HVDC converter stations can be shifted to elsewhere to export/import power from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power Transmission Infrastructure In India
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economy Of Visakhapatnam
Visakhapatnam is the largest city of Andhra Pradesh. Visakhapatnam has a GDP of $43.5 billion. It is the 9th richest city in India. Fishing industry, road–rail connectivity, many heavy industries like Hindustan Petroleum, Visakhapatnam Steel Plant, Hindustan Shipyard, Visakhapatnam Port Trust, National Thermal Power, Bharat Heavy Electricals, BARC, Naval Science and Technological Laboratory, Naval Dockyard, Dredging Corporation of India, Strategic Petroleum Reserve, NMDC, CONCOR, Andhra Pradesh Medtech Zone etc.. Private sector like Coromandel International, Ferro Alloys Corporation, Gangavaram Port, etc., are the factors that made the city into an industrial hub, from a small hamlet. Tourism also plays an important role in generating revenue, with numerous tourist destinations in and around the city. Blessed with a natural harbour and one of the largest ports of India, sea trade was made possible with other countries which also boosts the economy. The service sector con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Converter Stations
Converter may refer to: Electromagnetics *Frequency converter *Voltage converter, another name for **Electromagnetic transformer **Switched-mode power supply **DC-to-DC converter **Power inverter (DC to AC) ***Solar inverter Electronics *Digital-to-analog converter *Analog-to-digital converter * "Frequency-to-Voltage converter" (F-V converter), a frequency detector for voltage-controlled guitar synthesizer * A combination local oscillator and mixer stage in a superheterodyne receiver *"Converter", an alternate name for a remote control In television *Cable converter box, an electronic device use in cable television systems *Digital television adapter, sometimes known as a "converter box" Information technology * Low-noise converter, in communications *Scan conversion between video formats *File format converter, for converting between various file formats *Currency converter, a piece of software for converting one currency into another Metallurgy *Converter (metallurgy), a dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
