|
Wreck Cove Hydroelectric System
Wreck Cove is the largest hydroelectric system in Nova Scotia with a generating capacity of 215.8 MW. Constructed from 1975 to 1978, south of the Cape Breton Highlands National Park, Wreck Cove collects drainage water from of the Cape Breton Highlands plateau to generate renewable electricity. It consists of two generating stations: the Gisborne Generating Station, with an installed capacity of 3.5 MW, and the Wreck Cove Generating Station, with an installed capacity of 212 MW, producing on average 318 million kWh annually—enough energy to power about 30,000 homes. There are 33 hydro stations across Nova Scotia, with a total capacity of 400 MW. Wreck Cove makes up half of that hydro capacity, making it a key provider of reliable, renewable energy needed to complement and back up the 600 MW of clean—but unpredictable—wind power on the province's electrical system. The Wreck Cove hydroelectric facility is the only one in the province that can go from zero to full output ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipality Of The County Of Victoria
The Municipality of the County of Victoria is a county municipality on Cape Breton Island, Nova Scotia, Canada. It provides local government to about 7,000 residents of the eponymous historical county except for the Wagmatcook 1 reserve. The municipal offices are in the village of Baddeck. History Prior to European settlement, the area was sparsely inhabited by the Miꞌkmaq, who hunted in the area. French Jesuits settled at St. Anns in 1629. British settlement began in the 1700s after the territory was had been by France. In 1839, a property containing an inn, a tavern, and a post office was built in Baddeck. In 1841, Charles James Campbell opened a store, began shipbuilding, and developed coal mining. In 1851, Victoria County was split from Cape Breton County, and Baddeck became the site for the new county's jail and court house, and later the site of Alexander Graham Bell's Beinn Bhreagh, a summer residence and research centre, and the Bell Boatyard. Bell is commemorate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peak Load
In electrical engineering, a load profile is a graph of the variation in the electrical load versus time. A load profile will vary according to customer type (typical examples include residential, commercial and industrial), temperature and holiday seasons. Power producers use this information to plan how much electricity they will need to make available at any given time. Teletraffic engineering uses a similar load curve. Power generation In a power system, a load curve or load profile is a chart illustrating the variation in demand/electrical load over a specific time. Generation companies use this information to plan how much power they will need to generate at any given time. A load duration curve is similar to a load curve. The information is the same but is presented in a different form. These curves are useful in the selection of generator units for supplying electricity. Electricity distribution In an electricity distribution grid, the load profile of electricity u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minister Of Crown–Indigenous Relations
The minister of Crown–Indigenous relations (french: ministre des relations couronne-autochtones) is a minister of the Crown in the Canadian Cabinet, one of two ministers (the other being the minister of northern affairs) who administer Crown-Indigenous Relations and Northern Affairs Canada (CIRNAC), the department of the Government of Canada which is responsible for administering the ''Indian Act'' and other legislation dealing with "Indians and lands reserved for the Indians" under subsection 91(24) of the ''Constitution Act, 1867''. The minister is also more broadly responsible for overall relations between the federal government and First Nations, Métis, and Inuit. Marc Miller has been the present minister of Crown–Indigenous relations since October 26, 2021. The current version of the position was created alongside the minister of Indigenous services, who administers Indigenous Services Canada, the department responsible for health care, water, and other services to I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chéticamp Flowage
Chéticamp Flowage is a reservoir of Victoria County, in north-eastern Nova Scotia, Canada. It was created when the Nova Scotia Power Corporation placed the D-1 Dam across the Chéticamp River about west of Chéticamp Lake as part of the construction of the Wreck Cove Hydroelectric System. Winds can be strong over this flowage, making canoeing difficult. Despite this, fishing is a popular activity here. See also *List of lakes in Nova Scotia This is a list of lakes in Nova Scotia. Cape Breton Island All Four Counties * Bras d'Or Lake Cape Breton Regional Municipality * Anse aux Cannes Pond *The Barachois *Bear Cove Pond *Bear Gulch Ponds * Beaverdam Pond *Belle Lake *Benn ... References National Resources Canada Lakes of Nova Scotia {{VictoriaNS-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ride Through
In electrical power engineering, fault ride through (FRT), sometimes under-voltage ride through (UVRT), or low voltage ride through (LVRT), is the capability of electric generators to stay connected in short periods of lower electric network voltage (cf. voltage sag). It is needed at distribution level ( wind parks, PV systems, distributed cogeneration, etc.) to prevent a short circuit at HV or EHV level from causing a widespread loss of generation. Similar requirements for critical loads such as computer systems and industrial processes are often handled through the use of an uninterruptible power supply (UPS) or capacitor bank to supply make-up power during these events. General concept Many generator designs use electric current flowing through windings to produce the magnetic field on which the motor or generator operates. This is in contrast to designs that use permanent magnets to generate this field instead. Such devices may have a minimum working voltage, below which the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Response (electrical Grid)
Power system operations is a term used in electricity generation to describe the process of decision-making on the timescale from one day (day-ahead operation) to minutes prior to the power delivery. The term power system control describes actions taken in response to unplanned ''disturbances'' (e.g., changes in demand or equipment failures) in order to provide reliable electric supply of acceptable quality. The corresponding engineering branch is called Power System Operations and Control. Electricity is hard to store, so at any moment the supply (generation) shall be balanced with demand ("grid balancing"). In an electrical grid the task of real-time balancing is performed by a regional-based control center, run by an electric utility in the traditional ( vertically integrated) electricity market. In the restructured North American power transmission grid, these centers belong to '' balancing authorities'' numbered 74 in 2016, the entities responsible for operations are also c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Response
Inertial response is a property of large synchronous generators, which contain large synchronous rotating masses, and which acts to overcome any immediate imbalance between power supply and demand for electric power systems, typically the electrical grid. Due to the ever existing power imbalance between mechanical power supply and electric power demand the rotational frequency of the rotating masses in all synchronous generators in the grid either speed up (excess power supply) or slow down (excess power demand). This enables the grid operator to rebalance the system in order to stop the speed change, resulting in a relatively small variation in AC frequency ideally within the allowable frequency range of that system. i.e. A 50 Hz system may allow a ±0.5 Hz deviation in the frequency of the AC voltage The grid frequency is the combined result of the detailed motions of all individual synchronous rotors in the grid, which are modeled by a general equation of motion cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one hertz is the reciprocal of one second. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. Hertz are commonly expressed in multiples: kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of the energy of a photon, via the Planck relation ''E'' = ''hν'', where ''E'' is the photon's energy, ''ν'' is its freq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utility Frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains electricity by country. During the development of commercial electric power systems in the late-19th and early-20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Governor (device)
A governor, or speed limiter or controller, is a device used to measure and regulate the speed of a machine, such as an engine. A classic example is the centrifugal governor, also known as the Watt or fly-ball governor on a reciprocating steam engine, which uses the effect of inertial force on rotating weights driven by the machine output shaft to regulate its speed by altering the input flow of steam. History Centrifugal governors were used to regulate the distance and pressure between millstones in windmills since the 17th century. Early steam engines employed a purely reciprocating motion, and were used for pumping water – an application that could tolerate variations in the working speed. It was not until the Scottish engineer James Watt introduced the ''rotative'' steam engine, for driving factory machinery, that a constant operating speed became necessary. Between the years 1775 and 1800, Watt, in partnership with industrialist Matthew Boulton, produced some 500 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Factor
In electrical engineering, the power factor of an AC power system is defined as the ratio of the '' real power'' absorbed by the load to the ''apparent power'' flowing in the circuit. Real power is the average of the instantaneous product of voltage and current and represents the capacity of the electricity for performing work. Apparent power is the product of RMS current and voltage. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power may be greater than the real power, so more current flows in the circuit than would be required to transfer real power alone. A power factor magnitude of less than one indicates the voltage and current are not in phase, reducing the average product of the two. A negative power factor occurs when the device (which is normally the load) generates real power, which then flows back towards the source. In an electric power system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
