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HVDC Vancouver-Island
HVDC Vancouver Island is a de-energized high-voltage direct current interconnection between Arnott Substation (ARN) in Delta, British Columbia at on the Canadian mainland, and the Vancouver Island Terminal (VIT) in Duncan, British Columbia on Vancouver Island at . It went into operation in 1968 and was extended in 1977. HVDC Vancouver Island consists of three overhead line sections with a total length of 42 kilometres and two submarine cable sections with a length of 33 kilometres. Pole 1 ceased operation in 2014, and Pole 2 ceased operation in 2016. The infrastructure remains in place and portions may be re-used in the future. Route After its departure from Arnott Substation the overhead power line on the mainland splits at into two branches, one running to the Canoe Pass Terminal at and the other running to the Tsawwassen Beach Terminal at , where the first submarine cable section begins. At , the first submarine cable section ends and a short overhead line section running ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury Arc Rectifier
Mercury commonly refers to: * Mercury (planet), the nearest planet to the Sun * Mercury (element), a metallic chemical element with the symbol Hg * Mercury (mythology), a Roman god Mercury or The Mercury may also refer to: Companies * Mercury (toy manufacturer), a brand of diecast toy cars manufactured in Italy * Mercury Communications, a British telecommunications firm set up in the 1980s * Mercury Drug, a Philippine pharmacy chain * Mercury Energy, an electricity generation and retail company in New Zealand * Mercury Filmworks, a Canadian independent animation studio * Mercury General, a multiple-line American insurance organization * Mercury Interactive, a software testing tools vendor * Mercury Marine, a manufacturer of marine engines, particularly outboard motors * Mercury Systems, a defense-related information technology company Computing * Mercury (programming language), a functional logic programming language * Mercury (metadata search system), a data search system f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power Transmission Systems In Canada
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 positiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HVDC Transmission Lines
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 as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Power Cables
A submarine power cable is a transmission cable for carrying electric power below the surface of the water.Underwater Cable an Alternative to Electrical Towers Matthew L. Wald, '''', 2010-03-16, accessed 2010-03-18. These are called "submarine" because they usually carry electric power beneath (arms of the , |
Power Lines Connecting Vancouver Island With Canadian Mainland
The power grid of Vancouver Island is owned and operated by BC Hydro, and is connected with that of the Mainland of British Columbia by high voltage alternating current, AC submarine cables, and formerly by a direct current, DC submarine cable system. These links, which all consist of overhead line sections on land together with submarine cables are: * HVAC 525kV, Two parallel circuits from south of Powell River, British Columbia, Powell River to Vancouver Island in two cable and three overhead sections with reactor station on Texada Island. * One 138 kV. and one 230kV. AC lines running from Arnott substation in Delta, British Columbia, Delta to Vancouver Island Terminal in North Cowichan (the same points that HVDC Vancouver Island connects). Waypoints of these southern lines, which all consist of three overhead and two submarine cable sections are: The former * HVDC Vancouver Island was capable of transferring a total of 700 MW (now obsolete and de-energized). * A 525 kV link c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of HVDC Projects
This is a list of notable high-voltage direct-current power transmission projects. HVDC projects for long-distance transmission have two (or rarely, more) converter stations and a transmission line interconnecting them. Generally overhead lines are used for interconnection, but an important class of HVDC projects use submarine power cables. A back-to-back station has no transmission line and connects two AC grids at different frequencies or phase counts. Historical HVDC systems used the Thury system of motor-generators but these have all been made obsolete by later developments such as mercury-arc valves (now also obsolete), thyristors, and IGBT power transistors. Legend Line type: * Thury = Series-connected generators as designed by René Thury * Merc = Mercury-arc valve rectifier and inverter * Thyr = Thyristor rectifier and inverter * IGBT = Insulated Gate Bipolar Transistors Line status: Africa Australia and Oceania Asia Europe 2 As of 9 December 2015, Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan De Fuca Cable Project
The Juan de Fuca Cable Project is a proposed 550 MW, 150 kV high-voltage direct current (HVDC) submarine power cable connection running under the Strait of Juan de Fuca between Port Angeles, Washington, and Victoria, British Columbia. The project's final environmental impact statement (required by United States law) was completed in October 2007, and a presidential permit issued in June 2008. Sea Breeze Pacific Juan de Fuca Cable LP is proposing to install a high voltage direct current electric power transmission line between Vancouver Island in Canada and Port Angeles on the Olympic Peninsula in the United States. This 550-megawatt transmission line would cross the international border beneath the Strait of Juan de Fuca, and would be constructed using a combination of underground and submarine cables. A benefit of the interconnection is relieving congestion on the US–Canada interconnect. Under the Columbia River Treaty, in return for regulating the flow of the Columbia River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jordan River Dam
The Jordan River Dam, officially the Jordan River Diversion Dam, and known locally simply as Diversion Dam, is a dam located in Jordan River, British Columbia, Canada. It is part of the second hydroelectric development on Vancouver Island. History Prior to the dam's construction, the Goldstream Powerhouse was the main source of electricity to Victoria. Upon completion, it dwarfed the previous plant. The Vancouver Island Power Company, a subsidiary of British Columbia Electric Railway, completed construction of the smaller Bear Creek Dam and the main Jordan River Diversion Dam in 1911. At from top to bottom, the Diversion Dam was upon its construction, the highest dam in Canada. Water flowed through a 31,600 ft long flume to the penstock above the power house. The construction of the dam, due to its remoteness, required the construction of a three-foot narrow gauge railway as well as a cable-railway for the initial ascent from Jordan River. From 1912 to 1931 continual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maple Bay, British Columbia
Maple Bay is a seaside community located in the Cowichan Valley of southern Vancouver Island, British Columbia, Canada. A narrow inlet and surrounded by smooth, pebbled beaches, Maple Bay is home to marine activity all year round. Maple Bay is a small town with a population of 2,640. The sheltered haven of Maple Bay is situated halfway up Sansum Narrows, which separates Vancouver Island from Saltspring Island, the largest and nearest of the southern Gulf Islands. Maple Bay is serviced by floatplane, Salt Spring Air and Harbour Air Seaplanes that fly regular scheduled flights several times a day from Maple Bay Marina, to Ganges, British Columbia, Ganges (Ganges Water Aerodrome) on Saltspring Island Salt Spring Island or Saltspring Island is one of the Gulf Islands in the Strait of Georgia between mainland British Columbia, Canada, and Vancouver Island. The island was initially inhabited by various Salishan peoples before being settled b ... and then on to Vancouver (Vancouv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boundary Bay
, image = Boundary Bay Regional Park in Tsawwassen.jpg , image_size = 260px , alt = , caption = Looking east across Boundary Bay from Tsawwassen , image_bathymetry = , alt_bathymetry = , caption_bathymetry = , location = British Columbia and Washington , group = , coordinates = , type = Bay , etymology = , part_of = Salish Sea , inflow = , rivers = , outflow = , oceans = , catchment = , basin_countries = Canada and United States , agency = , designation = , date-built = , engineer = , date-flooded = , length = , width = , area = , depth = , max-depth = , volume = , residence_time = , salinity = , shore = , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three-phase Electric Power
Three-phase electric power (abbreviated 3φ) is a common type of alternating current used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer power. Three-phase electrical power was developed in the 1880s by multiple people. Three-phase power works by the voltage and currents being 120 degrees out of phase on the three wires. As an AC system it allows the voltages to be easily stepped up using transformers to high voltage for transmission, and back down for distribution, giving high efficiency. A three-wire three-phase circuit is usually more economical than an equivalent two-wire single-phase circuit at the same line to ground voltage because it uses less conductor material to transmit a given amount of electrical power. Three-phase power is mainly used directly to power large induction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
