Electricity distribution Electricity distribution An autorecloser is a circuit breaker equipped with a mechanism that can automatically close the breaker after it has been opened due to a fault. ...more on Wikipedia about "Autorecloser"
Backfeeding is when electric power flows in the opposite direction that it typically flows. An alternating current power station typically delivers power to the power grid by inducing a current to flow into the power grid when the voltage is positive, and inducing it to flow out of the power grid when the voltage is negative, and a typical power grid load (e.g. factory or home) induces current to flow out of the power grid when the voltage is positive and into the power grid when the voltage is negative. If either of these types of facilities starts inducing current flow like the other, then backfeeding is occurring. A power station will typically backfeed when it is shutdown due to local loads (e.g. lights or repair equipment). A power grid load may backfeed if it has distributed generation installed, such as a grid-connected photovoltaic solar power system or a microturbine-based power generator. It is also possible for an electric motor to temporarily backfeed if it is mechanically overpowered (see regenerative braking). ...more on Wikipedia about "Backfeeding"
A circuit breaker is an automatically-operated electrical switch which is designed to protect an electrical circuit from damage caused by overload or short circuit. Unlike a fuse which operates once and then has to be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices to protect an individual household appliance up to large switchgear intended to protect high voltage circuits feeding an entire city. ...more on Wikipedia about "Circuit breaker"
A consumer unit is a box of fuses or breakers usually arranged in a single row. This can be contrasted with a distribution board which has multiple rows of fuses or breakers and usually serves two (which may be split phase, two phase or two phases taken from three phase) or three phases. ...more on Wikipedia about "Consumer unit"
A distribution board (known in the United States as a (circuit) breaker panel, panelboard, or load center or for old ones, fuse box) is a mounting enclosure for multiple electrical circuit breakers. These are generally placed in two rows. Small single-phase boxes, with the breakers in just one row, are known as consumer units. Distribution boards are typically found in central locations inside buildings and often serve as the point at which electricity is distributed within a building. (For this reason, circuit breakers usually also function as switches to manually deactivate electrical circuits within a building when wiring is being serviced.) American breaker panels commonly have some live parts touchable with the lid off. British distribution boards by contrast generally have live parts enclosed to IP20, even with the lid off. This makes testing and live working much safer, especially given the voltage (415 volts) present in such boards. ...more on Wikipedia about "Distribution board"
A distribution management system is a system of computer-aided tools used by operators of electric distribution networks to monitor, control, and optimize the performance of the distribution system. (The monitor and control functions are known as SCADA.) ...more on Wikipedia about "Distribution management system"
:The term Earth leakage circuit breaker (ELCB) is often incorrectly used to describe its modern counterpart the Residual-current device (RCD). ...more on Wikipedia about "Earth leakage circuit breaker"
International standard IEC 60364 distinguishes three families of earthing arrangements using the two-letter codes TN, TT, and IT. ...more on Wikipedia about "Earthing system"
An electric switchboard is a device that directs electricity from one source to another. It is an assembly of panels, each of which contain switches that allow electricity to be redirected. The operator is protected from electrocution by safety switches and fuses. ...more on Wikipedia about "Electric switchboard"
Electrical bonding is related to the Earthing system of the mains supply and refers to the fact that in a building served with electricity it is normal for safety reasons to connect all metal objects such as pipes together to the mains earth to form a equipotential zone. This is done in the UK becuase many buildings are supplied with a single phase supply cable where the neutral and earth conductors are combined. Close to the electricity meter this conductor is divided into two, the earth terminal and the wire going to the neutral busbar in the consumer unit. In the even of a break in a neutral connection this earth terminal provided by the supply company will be at a potential (relative to the true earth) which is the same as the live wire ( phase wire) coming to the home. ...more on Wikipedia about "Electrical bonding"
The accepted standard for electrical wiring in the UK is the IEE wiring regulations, formally known as BS 7671:2004 and colloquially referred to as "the regs". These are created by a non-governmental body and in themselves are only recommended practice. Installations in commercial premises must satisfy legal safety regulations. Installations in domestic premises are subject to building regulations which specify that any new work should be safe, and that some works require either building control inspection or must be done by a registered electrician. Safety and good practice would normally be assumed to have been met provided the IEE regulations have been followed. ...more on Wikipedia about "Electrical wiring (UK)"
Electricity distribution is the penultimate process in the delivery of electricity, i.e. the part between transmission and user purchase from an electricity retailer. It is generally considered to include medium-voltage (less than 50 kV) power lines, low-voltage electrical substations and pole-mounted transformers, low-voltage (less than 1000 V) distribution wiring and sometimes electricity meters. ...more on Wikipedia about "Electricity distribution"
Electrification refers to changing a thing or system to operate using electricity. A more specific usage of the word refers to the act or process of building the necessary infrastructure to supply electric power to homes and businesses, especially in rural and isolated areas or the changeover of a railway from in the past steam locomotives, but now most often diesel-powered locomotives to electric locomotives. The infrastructure required for electrification includes power plants, long haul transmission lines, substations and shorter transmission lines to the end user. ...more on Wikipedia about "Electrification"
Flexible Alternating Current Transmission System (FACTS) is a static equipment used for the AC transmission of electrical energy. It is meant to enhance controllability and increase power transfer capability. It is generally a power electronics-based device. ...more on Wikipedia about "Flexible AC transmission system"
In electricity distribution, grid connection is connection to the national grid of power stations, substations and transmission cables for the supply of electric power. ...more on Wikipedia about "Grid connection"
IEC 60364 is the International Electrotechnical Commission's international standard on electrical installations of buildings. ...more on Wikipedia about "IEC 60364"
Electrical power is invariably partially lost during transmission. This applies to short distances such as between components on a printed circuit board as well as to cross country high voltage lines. Loss power is proportional to the resistance of the wire and the square of the current. ...more on Wikipedia about "Loss power"
In power engineering, a one-line diagram is a simplified notation for representing a three-phase power system. The one-line diagram has its largest application in power flow studies. ...more on Wikipedia about "One-line diagram"
The Open Access Same-Time Information System, mainly known by its acronym OASIS, is the web-based system for allocating electric power transmission service in North America. It is the primary means by which high-voltage transmission lines are reserved for moving wholesale quantities of electricity. ...more on Wikipedia about "Open Access Same-Time Information System"
A polyphase system is a means of distributing alternating current electrical power. The most common example are three-phase power systems used in industrial applications. ...more on Wikipedia about "Polyphase system"
In electricty distribution, a portal pylon is a pylon, with which the cross beams with the conductor cables rest on at least two towers. Portal pylons can be implemented as wood pylon, concrete pylon, steel tube pylon or lattice steel pylon. They are used in Germany because of their enormous space requirement as a rule only for anchor pylons, which have to resist high traction powers and as bases for lines in switchgears as anchor portals. ...more on Wikipedia about "Portal pylon" http://www.shortopedia.com , this is it! Electricity_distribution
Power quality is the quality of the electric power supplied to electrical equipment. Poor power quality can result in maloperation of the equipment. There are many ways in which a power feed can be poor quality and so there is no single way to completely quantify the quality of a power feed. ...more on Wikipedia about "Power quality"
The Rural Electrification Administration (REA) was a department of the United States federal government created on 11 May 1935 through efforts of the administration of President Franklin D. Roosevelt. The REA's task was to promote electrification in rural areas, which in the 1930s rarely were provided with electricity due to the cost of stringing electric lines to farmsteads. Many were critical of the decision, in particular private electricity utilities, who argued that the government had no right to compete with private enterprise. By 1939 the REA served 288,000 households with electricity, prompting private business to extend their services into the countryside as well. By the end of the decade, a quarter of rural homes had power, up from around 10% in 1930. ...more on Wikipedia about "Rural Utilities Service"
The generation of AC electric power is commonly three phase, in which the waveforms of three supply conductors are offset from one another by 120°. These three conductors are commonly housed in a single conduit (e.g. a metal pipe), but they are also commonly separately housed, or spaced in open-air, such as along utility poles. Standard frequencies are either 50 or 60 Hz. The voltage across a pair of these conductors, or between a single conductor and a neutral conductor is single phase electric power. ...more on Wikipedia about "Single-phase electric power"
A split phase electricity distribution system is a 3-wire single-phase distribution system, commonly used in North America for single-family residential and light commercial (up to about 100 kVA) applications. It is the AC equivalent of the former Edison direct current distribution system. Like that system, it has the advantage of saving the weight of conductors for the installation. Since there are two live conductors in the system, it is sometimes incorrectly referred to as " two phase". ...more on Wikipedia about "Split phase"
Stay cool with www.shortopedia.com.
This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from
the Shortopedia article about "Electricity distribution".
| MAIN PAGE | MAIN INDEX | CONTACT US |