Power engineering

Electrical Power Engineeringpower engineerPower Systems EngineeringpowerPower SystemsElectric power engineeringpower engineerselectric power systems engineeringElectric power transmissionelectricity
Power engineering, also called power systems engineering, is a subfield of electrical engineering that deals with the generation, transmission, distribution and utilization of electric power, and the electrical apparatus connected to such systems.wikipedia
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Electrical engineering

electrical engineerelectricalElectrical and Electronics Engineering
Power engineering draws the majority of its theoretical base from electrical engineering.
Electrical engineering is now divided into a wide range of fields including, computer engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, and electronics.

Voltage regulation

regulationregulation of the voltage
One of Westinghouse's engineers, William Stanley, recognised the problem with connecting transformers in series as opposed to parallel and also realised that making the iron core of a transformer a fully enclosed loop would improve the voltage regulation of the secondary winding.
In electrical engineering, particularly power engineering, voltage regulation is a measure of change in the voltage magnitude between the sending and receiving end of a component, such as a transmission or distribution line.

Galileo Ferraris

Ferraris, Galileo
In 1885 the Italian physicist and electrical engineer Galileo Ferraris demonstrated an induction motor and in 1887 and 1888 the Serbian-American engineer Nikola Tesla filed a range of patents related to power systems including one for a practical two-phase induction motor which Westinghouse licensed for his AC system.
He published an extensive and complete monograph on the experimental results obtained with open-circuit transformers of the type designed by the power engineers Lucien Gaulard and John Dixon Gibbs.

Electric power

powerelectrical powerelectrical
Power engineering, also called power systems engineering, is a subfield of electrical engineering that deals with the generation, transmission, distribution and utilization of electric power, and the electrical apparatus connected to such systems.

Power-flow study

power flow studyload flow studiespower flow
For example, the development of computers meant load flow studies could be run more efficiently allowing for much better planning of power systems.
In power engineering, the power-flow study, or load-flow study, is a numerical analysis of the flow of electric power in an interconnected system.

Power-system protection

Power system protectionovercurrent protectionprotection
Power system protection is the study of the ways an electrical power system can fail, and the methods to detect and mitigate for such failures.
Power-system protection is a branch of electrical power engineering that deals with the protection of electrical power systems from faults through the disconnection of faulted parts from the rest of the electrical network.

Three-phase electric power

three-phasethree-phase powerthree phase
Although much of the field is concerned with the problems of three-phase AC power – the standard for large-scale power transmission and distribution across the modern world – a significant fraction of the field is concerned with the conversion between AC and DC power and the development of specialized power systems such as those used in aircraft or for electric railway networks.

Rectifier

rectificationrectifiedrectifiers
Although much of the field is concerned with the problems of three-phase AC power – the standard for large-scale power transmission and distribution across the modern world – a significant fraction of the field is concerned with the conversion between AC and DC power and the development of specialized power systems such as those used in aircraft or for electric railway networks.

Electricity

electricalelectricelectrically
Electricity became a subject of scientific interest in the late 17th century.

Voltaic pile

dry pilechemical batteryVolta's pile
Over the next two centuries a number of important discoveries were made including the incandescent light bulb and the voltaic pile.

Michael Faraday

FaradayFaraday, MichaelM. Faraday
Probably the greatest discovery with respect to power engineering came from Michael Faraday who in 1831 discovered that a change in magnetic flux induces an electromotive force in a loop of wire—a principle known as electromagnetic induction that helps explain how generators and transformers work.

Electromotive force

EMFelectromotive force (EMF)
Probably the greatest discovery with respect to power engineering came from Michael Faraday who in 1831 discovered that a change in magnetic flux induces an electromotive force in a loop of wire—a principle known as electromagnetic induction that helps explain how generators and transformers work.

Electromagnetic induction

inductionmagnetic inductioninduced
Probably the greatest discovery with respect to power engineering came from Michael Faraday who in 1831 discovered that a change in magnetic flux induces an electromotive force in a loop of wire—a principle known as electromagnetic induction that helps explain how generators and transformers work.

Godalming

Godalming, SurreyCatteshallSt Hilary's School
In 1881 two electricians built the world's first power station at Godalming in England.

Arc lamp

carbon arc lamparc lightarc lighting
The station employed two waterwheels to produce an alternating current that was used to supply seven Siemens arc lamps at 250 volts and thirty-four incandescent lamps at 40 volts.

Incandescent light bulb

incandescent lampfilamentincandescent light
Over the next two centuries a number of important discoveries were made including the incandescent light bulb and the voltaic pile. The station employed two waterwheels to produce an alternating current that was used to supply seven Siemens arc lamps at 250 volts and thirty-four incandescent lamps at 40 volts.

Thomas Edison

Thomas Alva EdisonEdisonThomas A. Edison
However supply was intermittent and in 1882 Thomas Edison and his company, The Edison Electric Light Company, developed the first steam-powered electric power station on Pearl Street in New York City.

Pearl Street Station

Pearl Street PlantPearl Street Power Stationpower plant
The Pearl Street Station consisted of several generators and initially powered around 3,000 lamps for 59 customers.

Direct current

DCdirect-currentDC current
The power station used direct current and operated at a single voltage.

Lucien Gaulard

GaulardGaulard, Lucien
That same year in London Lucien Gaulard and John Dixon Gibbs demonstrated the first transformer suitable for use in a real power system.

John Dixon Gibbs

Gibbs
That same year in London Lucien Gaulard and John Dixon Gibbs demonstrated the first transformer suitable for use in a real power system.

Turin

TorinoTurin, ItalyTorino, Italy
The practical value of Gaulard and Gibbs' transformer was demonstrated in 1884 at Turin where the transformer was used to light up forty kilometres (25 miles) of railway from a single alternating current generator.

Alternating current

ACalternating-currentalternating
The practical value of Gaulard and Gibbs' transformer was demonstrated in 1884 at Turin where the transformer was used to light up forty kilometres (25 miles) of railway from a single alternating current generator.

Series and parallel circuits

seriesparallelin series
One of Westinghouse's engineers, William Stanley, recognised the problem with connecting transformers in series as opposed to parallel and also realised that making the iron core of a transformer a fully enclosed loop would improve the voltage regulation of the secondary winding. Perhaps the most serious was connecting the primaries of the transformers in series so that switching one lamp on or off would affect other lamps further down the line.

George Westinghouse

WestinghouseWestinghouse, GeorgeGeorge Westinghouse Jr.
Following the demonstration George Westinghouse, an American entrepreneur, imported a number of the transformers along with a Siemens generator and set his engineers to experimenting with them in the hopes of improving them for use in a commercial power system.