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Eel River Converter Station
The Eel River Converter Station is a high-voltage direct current (HVDC) converter station in Eel River Crossing, New Brunswick, Canada; it is the first operative HVDC station in the world equipped with thyristors. The Eel River Converter Station was the first operating fully solid-state HVDC converter station in the world, although some stations in Europe had mixed thyristor valves in with their original mercury-arc valves. The design and equipment for the Eel River HVDC station was provided by General Electric with its commissioning being completed in 1972. The Eel River Converter Station consists of two separate 12-pulse bidirectional solid-state non-synchronous HVDC ties of 4800 thyristors (each nominally rated 160 MW) connecting 230-kV transmission systems of Hydro-Québec and NB Power New Brunswick Power Corporation (french: Société d’énergie du Nouveau-Brunswick), operating as NB Power (french: Énergie NB), is the primary electric utility in the Canadian province of ... [...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] |
HVDC Converter Station
An HVDC converter station (or simply converter station) is a specialised type of substation which forms the terminal equipment for a high-voltage direct current (HVDC) transmission line.Arrillaga, Jos; High Voltage Direct Current Transmission, second edition, Institution of Electrical Engineers, , 1998. It converts direct current to alternating current or the reverse. In addition to the converter, the station usually contains: * three-phase alternating current switch gear * transformers * capacitors or synchronous condensers for reactive power * filters for harmonic suppression, and * direct current switch gear. Components Converter The converter is usually installed in a building called the valve hall. Early HVDC systems used mercury-arc valves, but since the mid-1970s, solid state devices such as thyristors have been used. Converters using thyristors or mercury-arc valves are known as ''line commutated converters''. In thyristor-based converters, many thyristors are conne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eel River Crossing, New Brunswick
Eel River Crossing (2016 population: 1,953) is a Canadian village in Restigouche County, New Brunswick. The village branded itself Eel River Dundee in 2018 but the legal name remains Eel River Crossing. Eel River (Chaleur Bay) A descriptive derived from the French designation Anguille. Anse a l'Anguille changed to Eel River Cove by petition on October 14, 1950. In Mi'kmaq, Eel River was known as ''Okpĕgŭnchĭk'' which meant "discoloured foam on the water". On 1 January 2023, Eel River Crossing will become part of the new village of Bois-Joli. History Its name usually being simplified to Eel River, the village is situated on the river of that name. The word "Crossing" was added to the name after the Intercolonial Railway built its Halifax-Rivière-du-Loup main line through the community in 1875. Since 1972 A high-voltage converter station The Eel River Converter Station is located in river crossing Demographics In the 2021 Census of Population The 2021 Canadia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyristors
A thyristor () is a solid-state semiconductor device with four layers of alternating P- and N-type materials used for high-power applications. It acts exclusively as a bistable switch (or a latch), conducting when the gate receives a current trigger, and continuing to conduct until the voltage across the device is reversed biased, or until the voltage is removed (by some other means). There are two designs, differing in what triggers the conducting state. In a three-lead thyristor, a small current on its Gate lead controls the larger current of the Anode to Cathode path. In a two-lead thyristor, conduction begins when the potential difference between the Anode and Cathode themselves is sufficiently large (breakdown voltage). Some sources define silicon-controlled rectifier (SCR) and thyristor as synonymous. Other sources define thyristors as more complex devices that incorporate at least four layers of alternating N-type and P-type substrate. The first thyristor devices were r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyristor Valve
In an electric power transmission system, a thyristor-controlled reactor (TCR) is a reactance connected in series with a bidirectional thyristor valve. The thyristor valve is phase-controlled, which allows the value of delivered reactive power to be adjusted to meet varying system conditions. Thyristor-controlled reactors can be used for limiting voltage rises on lightly loaded transmission lines. Another device which used to be used for this purpose is a magnetically controlled reactor (MCR), a type of magnetic amplifier otherwise known as a transductor. In parallel with series connected reactance and thyristor valve, there may also be a capacitor bank, which may be permanently connected or which may use mechanical or thyristor switching. The combination is called a static VAR compensator. Circuit diagram A thyristor controlled reactor is usually a three-phase assembly, normally connected in a delta arrangement to provide partial cancellation of harmonics. Often the main TCR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric
General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energy, digital industry, additive manufacturing and venture capital and finance, but has since divested from several areas, now primarily consisting of the first four segments. In 2020, GE ranked among the Fortune 500 as the 33rd largest firm in the United States by gross revenue. In 2011, GE ranked among the Fortune 20 as the 14th most profitable company, but later very severely underperformed the market (by about 75%) as its profitability collapsed. Two employees of GE – Irving Langmuir (1932) and Ivar Giaever (1973) – have been awarded the Nobel Prize. On November 9, 2021, the company announced it would divide itself into three investment-grade public companies. On July 18, 2022, GE unveiled the brand names of the companies it will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydro-Québec
Hydro-Québec is a public utility that manages the generation, transmission and distribution of electricity in the Canadian province of Quebec, as well as the export of power to portions of the Northeast United States. It was established by the Government of Quebec in 1944 from the expropriation of private firms. This was followed by massive investment in hydro-electric projects like the James Bay Project. Today, with 63 hydroelectric power stations, the combined output capacity is 37,370 megawatts. Extra power is exported from the province and Hydro-Québec supplies 10 per cent of New England's power requirements. Hydro-Québec is a Crown corporation (state-owned enterprise) based in Montreal. In 2018, it paid CAD$2.39 billion in dividends to its sole shareholder, the Government of Québec. Its residential power rates are among the lowest in North America. More than 40 percent of Canada’s water resources are in Québec and Hydro-Québec is the fourth largest hydropower produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NB Power
New Brunswick Power Corporation (french: Société d’énergie du Nouveau-Brunswick), operating as NB Power (french: Énergie NB), is the primary electric utility in the Canadian province of New Brunswick. NB Power is a vertically-integrated Crown Corporation wholly owned by the Government of New Brunswick and is responsible for the generation, transmission, and distribution of electricity. NB Power serves all the residential and industrial power consumers in New Brunswick, with the exception of those in Saint John, Edmundston and Perth-Andover who are served by Saint John Energy, Energy Edmundston, and the Perth-Andover Electric Light Commission, respectively. History The development of the electricity industry in New Brunswick started the 1880s with the establishment of small private power plants in Saint John, Fredericton and Moncton. Over the next 30 years, other cities successively electrified, so much so that in 1918, more than 20 companies were active in the electricit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Brunswick System Operator
The New Brunswick System Operator (NBSO) was an independent not-for-profit statutory corporation created under New Brunswick's Electricity Act on October 1, 2004. Under the Act, the NBSO was responsible for the adequacy and reliability of the integrated electricity system, and for facilitating the development and operation of the New Brunswick Electricity Market. These responsibilities took the form of operation of the NBSO-controlled grid and administration of the Open Access Transmission Tariff (Tariff) and the New Brunswick Electricity Market Rules. Dissolution New Brunswick's neElectricity Act(the “Act”) was proclaimed on October 1, 2013. Among other things, the Act saw the amalgamation of the NBSO with the NB Power Group of Companies. Legislation continues the requirement for open and non–discriminatory transmission access in New Brunswick. The system operation functions that were currently performed by the NBSO are now performed within a vertically integrated NB Powe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of IEEE Milestones
The following timeline tables list the discoveries and inventions in the history of electrical and electronic engineering. History of discoveries timeline History of associated inventions timeline List of IEEE Milestones The following list of the Institute of Electrical and Electronics Engineers (IEEE) milestones represent key historical achievements in electrical and electronic engineering. Prior to 1870 *1745–1746 – Leyden jar capacitor by Ewald Georg von Kleist and Pieter van Musschenbroek * 1751 – Book '' Experiments and Observations on Electricity'' by Benjamin Franklin * 1757–1775 – Benjamin Franklin's Work in London * 1799 – Alessandro Volta's Electrical Battery Invention * 1836 – Nicholas Callan's Pioneering Contributions to Electrical Science and Technology * 1828–1837 – Pavel Schilling's Pioneering Contribution to Practical Telegraphy * 1838 – Demonstration of Practical Telegraphy * 1852 – Electric Fire Alarm System * 1857 – Heinrich Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Restigouche County, New Brunswick
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, monument, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the :Human habitats, human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or ... [...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] |
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