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101 unit
1. установка; комплект; агрегат; аппарат; прибор; элемент; секция3. матем. единица4. составная деталь, сборная часть, узел; блок5. участок; забой; группа забоев6. ячейкаhydroblast concrete removal unit — устройство для гидроструйного снятия бетонной рубашки (с подводного трубопровода в случае необходимости врезки отвода)
onshore mobile drilling unit — морская передвижная буровая установка, МПБУ
rotation set packing unit — уплотнительный узел, устанавливаемый вращением
twin-hulled column-stabilized drilling unit — двухкорпусная буровая установка, стабилизированная вертикальными колоннами
wellhead casing hanger packing unit — уплотнительный узел подвески обсадной колонны на подводном устье
— box unit
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1. единица2. блок; узел; секция; агрегат; установка; аппарат; прибор3. деталь; элементhulled column-stabilized drilling offshore unit — буровое двухкорпусное морское основание со стабилизирующими вертикальными колоннами
hydroblast concrete removal unit — устройство для гидроструйного снятия бетонной рубашки (с подводного трубопровода)
sucker-rod mechanized loading and transporting unit — агрегат для механизированной погрузки и транспортировки глубинно-насосных штанг
twin-hulled column-stabilized drilling unit — двухкорпусная буровая установка, стабилизированная вертикальными колоннами
wellhead casing hanger packing unit — уплотнительный узел подвески обсадной колонны на подводном устье
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1. единица; единица измерения2. агрегат; установка; секция; узел; элемент
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единица, элемент; пачка ( небольшая по мощности совокупность пластов)
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2) блок; узел; секция; агрегат; установка; аппарат; прибор3) деталь; элемент•- unit of equipmentunit in standby — 1) резервный элемент 2) элемент, находящийся в ненагруженном резерве
- unit of gas
- unit of permeability
- unit of viscosity
- acoustic logging unit
- acoustic measuring unit
- air-balanced beam pumping unit
- ammonia absorption unit
- antifreeze agent batching unit
- API gamma-ray unit
- API neutron unit
- atmospheric-and-vacuum distillation unit
- auger drilling unit
- automatic coupling screwing unit
- automatic dewaxing unit
- automatic drilling-control unit
- automatic float-type pump-out unit
- automatic well logging unit
- automatic well measuring unit
- back-crank pumping unit
- back-in unit
- back-pressure control unit
- backup unit
- batching unit for injecting agents into gas flow
- beam-balanced pumping unit
- beamless pumping unit
- beam-pumping unit
- blasting unit
- blowout prevention operating unit
- bottomhole pumping unit
- British thermal unit
- bulk-cement transport unit
- caisson-type leg unit
- casing hanger packoff unit
- casing lubrication unit
- cathodic protection unit
- cement mixing unit
- cement plug drilling unit
- cementing unit
- central power unit
- central pumping unit
- cetane unit
- chain-driven pumping unit
- column-stabilized drilling unit
- combined atmospheric-vacuum rerun unit
- combined-balanced beam pumping unit
- compatibility test unit
- completely failed unit
- compression unit
- conventional pumping unit
- conversion unit
- corrosion unit
- counterweight beam unit
- cracking unit
- crank-balanced pumping unit
- damaged unit
- deballasting pumping unit
- dedicated maintenance unit
- deep-well pumping unit
- degassing unit
- derrick unit
- dewaxing unit
- diethylene glycol batching unit
- discrepant unit
- double-drum servicing unit
- double-valve unit
- downflow fluid-catalyst unit
- downhole television unit
- drainage unit
- drawworks unit
- drill unit
- drilling unit
- drilling-in unit
- drive-in unit
- driving unit
- electrical dewaxing unit
- electrical survey unit
- emergency storage unit
- Engler unit
- equilibrium unit
- expansion refrigeration unit
- exploder unit
- fault-free unit
- fault-location unit
- field replaceable unit
- filter unit
- filtering unit
- filtration unit
- fire-control unit
- floating drilling unit
- floating drilling offshore unit
- floating offshore unit
- fluid unit
- fluid-bed catalytic cracking unit
- foam unit
- front-mounted self-contained unit
- fuel-oil unit
- gas unit
- gas-cleaning unit
- gas-compressor unit
- gas-engine-compressor unit
- gas-gasoline processing unit
- gaslift unit
- gas-measuring unit
- gasoline tank unit
- gas-separation unit
- geared pumping unit
- geological unit
- glycol dehydration unit
- group unit
- group separation unit
- guide line tensioning unit
- heating unit
- high-speed pumping unit
- hoist unit
- hoisting unit
- Houdry fixed-bed unit
- hulled column-stabilized drilling offshore unit
- hydraulic fracturing unit
- hydraulic power pumping unit
- hydraulic pumping unit
- hydroblast concrete removal unit
- hydrocyclone unit
- hydrostatic testing unit
- idle unit
- immobile offshore drilling unit
- insert submersible pump unit
- jack-up drilling offshore unit
- known-reliability unit
- limited-life unit
- locking unit
- long-lived unit
- long-stroke pumping unit
- lowering unit
- low-speed pumping unit
- maintenance unit
- maintenance control unit
- maintenance service unit
- malfunctioning unit
- manifold unit
- marginally operating unit
- marine unit
- marine drilling unit
- master gate unit
- mat supported jack-up unit
- measuring unit
- methanol batching unit
- mobile logging unit
- mobile offshore unit
- mobile offshore drilling unit
- mud logging unit
- mud preparing unit
- mud pump valve unit
- mud pumping unit
- multiple well pumping unit
- natural gas liquefaction unit
- nonrepairable unit
- offshore unit
- offshore drilling unit
- offshore mobile drilling unit
- off-stream unit
- oil-pump unit
- oil-well pumping unit
- open truss-type leg unit
- operational test unit
- optimal replaceable unit
- outlet unit
- packing unit
- pipeless deep-well pumping unit
- pipeless subsurface pumping unit
- pneumatic pressure cement storage unit
- pole mast unit
- portable fire pump unit
- portable pumping unit
- post head unit
- pressure unit
- processing unit
- production rate measuring unit
- propane-air unit
- proportioning unit
- proration unit
- pulling unit
- pumping unit
- pumping unit on skid
- reactive turbine bottomhole unit
- reducing unit
- refrigeration unit
- released swab unit
- reliability test unit
- reliable unit
- remote pumping unit
- renewable unit
- repair unit
- repair training unit
- rigged-down swabbing unit
- rotary unit
- rotation unit
- rotation set packing unit
- sampler unit
- sampling-and-analyzing unit
- sand-master unit
- sand-washing bottom unit
- seating-and-sealing unit
- seawater filtration unit
- sedimentary unit
- selective four-coil unit
- self-contained offshore drilling unit
- self-elevating offshore drilling unit
- self-propelled manifold unit
- self-propelled semisubmersible drilling unit
- semiautomatic mud logging unit
- semisubmersible offshore drilling unit
- sensor unit
- servicing unit
- shale shaker-desander combination unit
- shooting unit
- short-stroke pumping unit
- silt master unit
- single-core cable well logging unit
- single-well completion unit
- slush pump unit
- snubbing unit
- spotty unit
- standard API unit
- standard pumping unit
- standby pumping unit
- steam unit
- stratigraphic unit
- submersible drive pump unit
- submersible electrical centrifugal pump unit
- subsurface pumping unit
- sucker-rod mechanized loading and transporting unit
- surface drilling unit
- surface pressure readout unit
- survey unit
- swabbing unit
- switchover measuring unit
- test-and-repair unit
- three-core cable well logging unit
- three-joint unit
- tractor-mounted well servicing unit
- troubleshooting unit
- tubing lubrication unit
- turbocompressor unit
- twin-hulled column-stabilized drilling unit
- twin-rerun unit
- underwater drilling unit
- upflow catalyst unit
- upflow fluid-catalyst unit
- upstream pumping unit
- vapor recovery unit
- vertical reference unit
- weight-set packing unit
- well-completion unit
- wellhead casing hanger packing unit
- well-logging unit
- well-measuring unit
- well-servicing unit
- well-servicing pump-hoist unit
- well-swabbing unit* * *• 1) установка; 2) единица• деталь• забой• участок -
102 equipment
оборудование; снаряжение; оснащение; оснастка (напр. станка); приспособления; приборы; аппаратура; арматура; принадлежности; подвижной состав; воен. материальная часть; боевая техника- equipment arrangement - equipment availability - equipment building - equipment capital costs - equipment casualty - equipment certificate - equipment certification - equipment certification requirement - equipment check - equipment checkout - equipment clock - equipment compatibility - equipment condition data - equipment damage - equipment dependability - equipment depot - equipment design failure - equipment error - equipment facilities - equipment failure - equipment failure information - equipment failure log - equipment for road construction - equipment for the manufacture of asbestos cement - equipment identification register - equipment identity register - equipment in place - equipment inspection - equipment-intermodulation noise - equipment investments - equipment lay-out - equipment layout - equipment lease - equipment leasing - equipment level controller - equipment location - equipment longevity - equipment maintenance facility - equipment maintenance management program - equipment maintenance officer - equipment maintenance ratio - equipment maintenance report - equipment maintenance team - equipment manufacturer code - equipment manufacturing failure - equipment-modification list - equipment monitoring - equipment nomenclature - equipment operating procedure - equipment operation test - equipment package - equipment performance log - equipment performance report - equipment placement - equipment programming - equipment protection device - equipment qualification - equipment rack - equipment ready date - equipment rebuilding - equipment reference book - equipment regulation - equipment reliability - equipment reliability status report - equipment repair time - equipment replacement - equipment replacement network - equipment reservation - equipment revamping - equipment review board - equipment room - equipment safety - equipment salvage - equipment schedule - equipment serviceability criterion - equipment side - equipment specifications - equipment spendings - equipment status board - equipment status chart - equipment status indication - equipment status log - equipment supervision - equipment terminal - equipment unavailability - equipment upgrading - equipment wire - accessory equipment - acoustic emission equipment - acoustical equipment - actuated equipment - add-on equipment - air equipment - air-chucking equipment - air-conditioning equipment - air-humidifying equipment - air-painting equipment - ancillary equipment - answering equipment - assembly equipment - balancing equipment - blasting equipment - board equipment - bolt-on equipment - brake equipment - built-in test equipment - calibration equipment - CAM equipment - capital equipment - cargo handling equipment - carrying and lifting equipment - centrifugal pumping equipment - checking equipment - collective protective equipment - compressor equipment - computer-aided test equipment - computer-automated equipment - concrete-handling equipment - consumption equipment - controllable balancing equipment - conveying equipment - coolant clarification equipment - cost-effective equipment - crane equipment - crane electrical equipment - crushing and screening equipment - data-processing equipment - dedicated equipment - defective equipment - de-icer equipment - demonstration equipment - detection equipment - detritus equipment - diagnosis equipment - diagnostic equipment - digital readout equipment - dimensional-inspection equipment - direction-finding equipment - driven equipment - durable equipment - electrical equipment - electrical discharge equipment - electroheat equipment - electrothermal equipment - emergency equipment - energy equipment - energy-intensive equipment - erection equipment - exhibition equipment - experimental equipment - external test equipment - FA-related equipment - fabricating equipment - fabrication equipment - factory-installed equipment - failed equipment - farming equipment - faulty equipment - feeding equipment - field-balancing equipment - filling equipment - finishing equipment - fire-fighting equipment - fire safety equipment - fixed equipment - fixed path equipment - flatness testing equipment - fuel handling equipment - gaging equipment - garage equipment - garage-repair equipment - gas equipment - gas-welding equipment - gear testing equipment - general-purpose equipment - general test equipment - grading equipment - greasing equipment - grit-dredging equipment - handling equipment - hard automation equipment - haulage equipment - hauling equipment - heat-treating equipment - hi-fi equipment - high-fi equipment - high-technology equipment - higher-horsepower equipment - homemade fire-fighting equipment - hydraulic equipment - hydraulic tracing equipment - idle equipment - ignition equipment - independent equipment - industrial equipment - industrial cleaning equipment - input equipment - inspection equipment - installation equipment - installed equipment - instrumental equipment - instrumented equipment - interconnecting equipment - jaw-type work-holding equipment - joining equipment - laboratory equipment - lifting equipment - lighting equipment - loading equipment - loading and unloading equipment for dryer cars - machine-tool equipment - machining equipment - maintenance equipment - maintenance-and-support equipment - manipulating equipment - manually controlled equipment - manufacturing equipment - material-handling equipment - materials-handling equipment - material mining equipment - MDI equipment - measurement-processing equipment - measuring and control equipment - measuring equipment - mechanical handling equipment - metal-cutting equipment - metering equipment - microprocessing equipment - microwave heating equipment - military equipment - mill-turn equipment - mobile equipment - monitoring equipment - mountable pile-driving equipment - multidimension gaging equipment - multisensor equipment - noise abatement equipment - non-assembled equipment - nonrepairable equipment - nonstandard equipment - off-road equipment - operational equipment - optional equipment - outdated equipment - outmoded equipment - out-of-repair equipment - paint equipment - parts-handling equipment - parts-washing equipment - pattern equipment - peripheral equipment - personal protection equipment - personal protective equipment - pipeline equipment - pipeline-laying equipment - pipeline-scraping equipment - pneumatic equipment - pile-driving equipment - piling equipment - portable jacking equipment - postprocess gaging equipment - preparatory machining equipment - presetting equipment - primary equipment - primary machining equipment - process control monitoring equipment - process equipment - process monitoring equipment - processing equipment - production equipment - production test equipment - professional drilling equipment - protective equipment - proving-and-indicating equipment - pulling-and-running equipment - pump-and-compressor equipment - pumping equipment - quarry equipment - reconditioning equipment - redundant equipment - refrigeration equipment - rejected equipment - reliable equipment - remote control equipment - remove an equipment - repair equipment - repairable equipment - reserve equipment - residential equipment - retrofit equipment - rippers equipment - road-building equipment - rope-suspended boom equipment - rotating equipment - round trip equipment - safeguarding equipment - safety equipment - safety-survival equipment - secondary equipment - self-balancing equipment - sensing equipment - service checkout equipment - service equipment - snow-cleaning equipment - snow-handling equipment - spare equipment - spark erosion equipment - special support equipment - special test equipment - standalone equipment - standard equipment - standby equipment - supervisory equipment - supplementary equipment - support equipment - supporting equipment - surface-measuring equipment - swarf-handling equipment - tank cleaning equipment - telescopic equipment - test equipment - test-and-maintenance equipment - testing equipment - tool equipment - tool-holding equipment - tooling equipment - tool-setting equipment - touch-probe inspection equipment - towing equipment - tracer equipment - traction-type equipment - training equipment - transferring equipment - transport equipment - transportation equipment - turning gaging equipment - unattended equipment - underground equipment - universal equipment - unrepairable equipment - up-to-date construction equipment - used equipment - utility equipment - value-added equipment - vandalproof equipment - vehicle greasing equipment - warehousing equipment - waste-minimization equipment - water-fed equipment - water-purification equipment - water quality monitoring equipment - water-treatment equipment - weed-control equipment - weighing equipment - weld deposition equipment - welding equipment - welding deposition equipment - wheel alignment equipment - work-holding equipment - workover equipment -
103 Cardew, Philip
[br]b. 24 September 1851 Leatherhead, Surrey, Englandd. 17 May 1910 Godalming, Surrey, England[br]English electrical engineer and inventory adviser to the Board of Trade.[br]After education at the Royal Military Academy in Woolwich, Cardew was placed in charge of Bermudan military telegraphs in 1876. In 1889 he was appointed the first Electrical Adviser to the Board of Trade, where he formulated valuable regulations for the safety and control of public electricity supplies. In 1883 Cardew invented the thermogalvanometer, a hot-wire measuring instrument, that became widely used as a voltmeter but was obsolete by 1907. The device depended for its action on the heating and subsequent elongation of a platinum wire and could be used on alternating currents of high frequency. Retiring from the Board of Trade in 1899, Cardew joined a partnership of consulting engineers with Sir William Preece and his son. Taking a particular interest in railway electrification, he became a director of the London Brighton \& South Coast Railway.[br]Principal Honours and DistinctionsInventions Exhibition Gold Medal 1885.Bibliography1881, Journal of the Society of Telegraph Engineers 10:111–14 (describes the application of electricity to railways).5 February 1883, British patent no. 623 (Cardew's hot-wire instrument).1898, Journal of the Institution of Electrical Engineers 19:425–47 (his account of Board of Trade legislation).Further ReadingJ.T.Stock and D.Vaughan, 1983, The Development of Instruments to Measure Electric Current, London: Science Museum (for instrument origins).Dictionary of National Biographyr, 1912, Vol. I, Suppl. 2, pp. 313–14.GW -
104 Siemens, Sir Charles William
[br]b. 4 April 1823 Lenthe, Germanyd. 19 November 1883 London, England[br]German/British metallurgist and inventory pioneer of the regenerative principle and open-hearth steelmaking.[br]Born Carl Wilhelm, he attended craft schools in Lübeck and Magdeburg, followed by an intensive course in natural science at Göttingen as a pupil of Weber. At the age of 19 Siemens travelled to England and sold an electroplating process developed by his brother Werner Siemens to Richard Elkington, who was already established in the plating business. From 1843 to 1844 he obtained practical experience in the Magdeburg works of Count Stolburg. He settled in England in 1844 and later assumed British nationality, but maintained close contact with his brother Werner, who in 1847 had co-founded the firm Siemens \& Halske in Berlin to manufacture telegraphic equipment. William began to develop his regenerative principle of waste-heat recovery and in 1856 his brother Frederick (1826–1904) took out a British patent for heat regeneration, by which hot waste gases were passed through a honeycomb of fire-bricks. When they became hot, the gases were switched to a second mass of fire-bricks and incoming air and fuel gas were led through the hot bricks. By alternating the two gas flows, high temperatures could be reached and considerable fuel economies achieved. By 1861 the two brothers had incorporated producer gas fuel, made by gasifying low-grade coal.Heat regeneration was first applied in ironmaking by Cowper in 1857 for heating the air blast in blast furnaces. The first regenerative furnace was set up in Birmingham in 1860 for glassmaking. The first such furnace for making steel was developed in France by Pierre Martin and his father, Emile, in 1863. Siemens found British steelmakers reluctant to adopt the principle so in 1866 he rented a small works in Birmingham to develop his open-hearth steelmaking furnace, which he patented the following year. The process gradually made headway; as well as achieving high temperatures and saving fuel, it was slower than Bessemer's process, permitting greater control over the content of the steel. By 1900 the tonnage of open-hearth steel exceeded that produced by the Bessemer process.In 1872 Siemens played a major part in founding the Society of Telegraph Engineers (from which the Institution of Electrical Engineers evolved), serving as its first President. He became President for the second time in 1878. He built a cable works at Charlton, London, where the cable could be loaded directly into the holds of ships moored on the Thames. In 1873, together with William Froude, a British shipbuilder, he designed the Faraday, the first specialized vessel for Atlantic cable laying. The successful laying of a cable from Europe to the United States was completed in 1875, and a further five transatlantic cables were laid by the Faraday over the following decade.The Siemens factory in Charlton also supplied equipment for some of the earliest electric-lighting installations in London, including the British Museum in 1879 and the Savoy Theatre in 1882, the first theatre in Britain to be fully illuminated by electricity. The pioneer electric-tramway system of 1883 at Portrush, Northern Ireland, was an opportunity for the Siemens company to demonstrate its equipment.[br]Principal Honours and DistinctionsKnighted 1883. FRS 1862. Institution of Civil Engineers Telford Medal 1853. President, Institution of Mechanical Engineers 1872. President, Society of Telegraph Engineers 1872 and 1878. President, British Association 1882.Bibliography27 May 1879, British patent no. 2,110 (electricarc furnace).1889, The Scientific Works of C.William Siemens, ed. E.F.Bamber, 3 vols, London.Further ReadingW.Poles, 1888, Life of Sir William Siemens, London; repub. 1986 (compiled from material supplied by the family).S.von Weiher, 1972–3, "The Siemens brothers. Pioneers of the electrical age in Europe", Transactions of the Newcomen Society 45:1–11 (a short, authoritative biography). S.von Weihr and H.Goetler, 1983, The Siemens Company. Its Historical Role in theProgress of Electrical Engineering 1847–1980, English edn, Berlin (a scholarly account with emphasis on technology).GWBiographical history of technology > Siemens, Sir Charles William
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105 electric arc phenomenon
явление электрической дуги
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[Интент]Параллельные тексты EN-RU
Electric arc phenomenon
The electric arc is a phenomenon which takes place as a consequence of a discharge which occurs when the voltage between two points exceeds the insulating strength limit of the interposed gas; then, in the presence of suitable conditions, a plasma is generated which carries the electric current till the opening of the protective device on the supply side.
Gases, which are good insulating means under normal conditions, may become current conductors in consequence of a change in their chemical-physical properties due to a temperature rise or to other external factors.
To understand how an electrical arc originates, reference can be made to what happens when a circuit opens or closes.
During the opening phase of an electric circuit the contacts of the protective device start to separate thus offering to the current a gradually decreasing section; therefore the current meets growing resistance with a consequent rise in the temperature.
As soon as the contacts start to separate, the voltage applied to the circuit exceeds the dielectric strength of the air, causing its perforation through a discharge.
The high temperature causes the ionization of the surrounding air which keeps the current circulating in the form of electrical arc. Besides thermal ionization, there is also an electron emission from the cathode due to the thermionic effect; the ions formed in the gas due to the very high temperature are accelerated by the electric field, strike the cathode, release energy in the collision thus causing a localized heating which generates electron emission.
The electrical arc lasts till the voltage at its ends supplies the energy sufficient to compensate for the quantity of heat dissipated and to maintain the suitable conditions of temperature. If the arc is elongated and cooled, the conditions necessary for its maintenance lack and it extinguishes.
Analogously, an arc can originate also as a consequence of a short-circuit between phases. A short-circuit is a low impedance connection between two conductors at different voltages.
The conducting element which constitutes the low impedance connection (e.g. a metallic tool forgotten on the busbars inside the enclosure, a wrong wiring or a body of an animal entered inside the enclosure), subject to the difference of potential is passed through by a current of generally high value, depending on the characteristics of the circuit.
The flow of the high fault current causes the overheating of the cables or of the circuit busbars, up to the melting of the conductors of lower section; as soon as the conductor melts, analogous conditions to those present during the circuit opening arise. At that point an arc starts which lasts either till the protective devices intervene or till the conditions necessary for its stability subsist.
The electric arc is characterized by an intense ionization of the gaseous means, by reduced drops of the anodic and cathodic voltage (10 V and 40 V respectively), by high or very high current density in the middle of the column (of the order of 102-103 up to 107 A/cm2), by very high temperatures (thousands of °C) always in the middle of the current column and – in low voltage - by a distance between the ends variable from some microns to some centimeters.
[ABB]Явление электрической дуги
Электрическая дуга между двумя электродами в газе представляет собой физическое явление, возникающее в тот момент, когда напряжения между двумя электродами превышает значение электрической прочности изоляции данного газа.
При наличии подходящих условий образуется плазма, по которой протекает электрический ток. Ток будет протекать до тех пор, пока на стороне электропитания не сработает защитное устройство.
Газы, являющиеся хорошим изолятором, при нормальных условиях, могут стать проводником в результате изменения их физико-химических свойств, которые могут произойти вследствие увеличения температуры или в результате воздействия каких-либо иных внешних факторов.
Для того чтобы понять механизм возникновения электрической дуги, следует рассмотреть, что происходит при размыкании или замыкании электрической цепи.
При размыкании электрической цепи контакты защитного устройства начинают расходиться, в результате чего постепенно уменьшается сечение контактной поверхности, через которую протекает ток.
Сопротивление электрической цепи возрастает, что приводит к увеличению температуры.
Как только контакты начнут отходить один от другого, приложенное напряжение превысит электрическую прочность воздуха, что вызовет электрический пробой.
Высокая температура приведет к ионизации воздуха, которая обеспечит протекание электрического тока по проводнику, представляющему собой электрическую дугу. Кроме термической ионизации молекул воздуха происходит также эмиссия электронов с катода, вызванная термоэлектронным эффектом. Образующиеся под воздействием очень высокой температуры ионы ускоряются в электрическом поле и бомбардируют катод. Высвобождающаяся, в результате столкновения энергия, вызывает локальный нагрев, который, в свою очередь, приводит к эмиссии электронов.
Электрическая дуга длится до тех пор, пока напряжение на ее концах обеспечивает поступление энергии, достаточной для компенсации выделяющегося тепла и для сохранения условий поддержания высокой температуры. Если дуга вытягивается и охлаждается, то условия, необходимые для ее поддержания, исчезают и дуга гаснет.
Аналогичным образом возникает дуга в результате короткого замыкания электрической цепи. Короткое замыкание представляет собой низкоомное соединение двух проводников, находящихся под разными потенциалами.
Проводящий элемент с малым сопротивлением, например, металлический инструмент, забытый на шинах внутри комплектного устройства, ошибка в электромонтаже или тело животного, случайно попавшего в комплектное устройство, может соединить элементы, находящиеся под разными потенциалами, в результате чего через низкоомное соединение потечет электрический ток, значение которого определяется параметрами образовавшейся короткозамкнутой цепи.
Протекание большого тока короткого замыкания вызывает перегрев кабелей или шин, который может привести к расплавлению проводников с меньшим сечением. Как только проводник расплавится, возникает ситуация, аналогичная размыканию электрической цепи. Т. е. в момент размыкания возникает дуга, которая длится либо до срабатывания защитного устройства, либо до тех пор, пока существуют условия, обеспечивающие её стабильность.
Электрическая дуга характеризуется интенсивной ионизацией газов, что приводит к падению анодного и катодного напряжений (на 10 и 40 В соответственно), высокой или очень высокой плотностью тока в середине плазменного шнура (от 102-103 до 107 А/см2), очень высокой температурой (сотни градусов Цельсия) всегда в середине плазменного шнура и низкому падению напряжения при расстоянии между концами дуги от нескольких микрон до нескольких сантиметров.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > electric arc phenomenon
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106 load
2) нагрузка, усилие || нагружать3) кфт. заряжать5) съём ( стекломассы)6) гидр. наносы8) закладка ( заготовки в приспособление) || закладывать9) хим. вводить ( ингредиенты)11) заправка (напр. ленты) || заправлять (напр. ленту)12) вчт. загрузка (напр. программы) || загружать (напр. программу)•load per unit surface — нагрузка на единицу поверхности (охлаждения, нагрева),to apply load — прикладывать нагрузку;to carry load — нести нагрузку; выдерживать нагрузку;to cast load to side — производить поперечный перекос отвала ( бульдозера);to distribute load — распределять нагрузку;to load eccentrically — нагружать ( элемент) внецентренно, прикладывать нагрузку с эксцентриситетом;to impose load — прикладывать нагрузку;to load in bulk — грузить навалом или насыпью;to resist load — выдерживать нагрузку;to support load — нести нагрузку; выдерживать нагрузку;to sustain load — выдерживать нагрузку;to take up load — воспринимать нагрузку;to load up — нагружать;to load with film — заряжать киноплёнкой-
acceleration shock load
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active load
-
actual load
-
additional load
-
aerodynamic load
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air-conditioning load
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aircraft useful load
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allowable load
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alternate load
-
annual maximum load
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appliance load
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applied bearing load
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artificial load
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assumed load
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auxiliary load
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axial load
-
axle load
-
backhaul load
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balanced load
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balancing load
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ball load
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base load
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basic load
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batch load
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bed load
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bending load
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blast load
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bottom load
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brake load
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breaking load
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buckling load
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buff load
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bulk load
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calculated load
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capacitance load
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car load
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carbon burning load
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central load
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characteristic load
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circulating load of impurities
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clocked load
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coaxial dry load
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coaxial load
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cold-rolling load
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collapse load
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combined load
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commercial load
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complete wagon load
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complex load
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compressive load
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compressor load
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computational load
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concentrated load
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condensive load
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connected load
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continuous load
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controllable load
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cooling load
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crippling load
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crush load
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crushing load
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current load
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cutter load
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cyclic load
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daily load
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dead load
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dead-weight load
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design load
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design ultimate load
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direct-acting load
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direct load
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discontinuous load
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dissipative-wall waveguide load
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distributed load with linear variation
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distributed load
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docking load
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domestic load
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down-line load
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draft end load
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draft load
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drawbar load
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dummy load
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dust load
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dwelling load
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dynamic load
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earth load
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earthquake load
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eccentric load
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effective load
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electric heating load
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electrical load
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electric load
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emergency load
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end load
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equivalent load
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even load
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excessive load
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excess load
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explosive load
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exponential load
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external load
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factored load
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failure load
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falling load
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fictitious load
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fixed load
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flight load
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floor load
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fluctuating load
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fractional load
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fracture load
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frozen load
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full load
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gradually applied load
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gross load
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ground load
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guarantee load
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gust load
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heat load
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heating load
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heat-transfer load
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high-power load
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high-resistance load
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hole load
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hydraulic thrust load
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hydrodynamic load
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hydrostatic load
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ice load
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imaginary load
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impact load
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imposed load
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impulsive load
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impulse load
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increment load
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induced docking loads
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inductance load
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industrial load
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industrial steam load
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inertia load
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initial program load
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input load
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instability load
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installed load
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instantaneous load
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intermittent load
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ionic load
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irregular load
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irregularly distributed load
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jettisoned load in flight
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knife-edge load
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lagging load
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landing load
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lane load
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latent heat load
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lateral load
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leading load
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less-than-car load
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light load
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lighting load
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limit load
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limit operating load
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linear load
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linearly varying load
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live load
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low-resistance load
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lumped load
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maneuvering load
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mass load
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matched load
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maximum safe load
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midspan load
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miscellaneous load
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mobile load
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moisture load
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momentary load
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movable load
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multichannel load
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net load
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noncentral load
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noncutting load
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noninductive load
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nonlinear load
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nonreactive load
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nonreflecting load
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normal running load
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occasionally applied load
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off-clearance load
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off-peak load of power plant
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on-peak load
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operating load
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optimum load
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ore load
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oscillating load
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oscillatory load
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out-of-balance load
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out-of-gage load
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out-of-length load
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output load
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overall load
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overhauling load
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overlength load
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overtolerance load
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palletized load
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palletized work load
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part throttle load
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partial load
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part load
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peak load
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periodic load
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permanent load
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permissible load
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phantom load
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piezoelectric load
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pilot work load
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plant load
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plate load
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point load
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pollutant load
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pop-in load
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power load
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power system load
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predetermined maximum cutting load
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prestressing load
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program load
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proof load
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pulsating load
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punch through load
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radial load
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railway load
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rated load
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reactive load
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real load
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rectifier load
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reflecting load
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refrigeration load
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repeated load
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residential load
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resistance load
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reverse torque load
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reversed load
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rolling load
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rotating bending load
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rupturing load
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safe load
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salt load
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Schottky diode load
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secondary load
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sediment load
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seismic load
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self-mass load
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sensible heat load
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service load
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setting load
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sewage load
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shearing load
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shear load
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shock load
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side load
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single load
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skip load
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sleet load
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sliding load
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snow load
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specific load
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specified load
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stalling load
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static load
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steady load
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storage load
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structural load
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suddenly applied load
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sudden load
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superimposed load
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support load
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support yield load
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surcharge load
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surface load
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sustained load
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symmetrical load
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temperature load
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tensile load
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terminal load
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test load
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thermal load
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through load
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tilting load
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tool/workpiece load
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top load
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torque load
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torsional load
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total load
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traction load
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tractional load
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traffic load
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transistor load
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traveling load
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treating load
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trial load
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triangular load
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true load
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twisting load
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ultimate load
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unbalanced load
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uniaxial load
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uniform load
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uniformly distributed load
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unit load
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unitized load
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unmatched load
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up load
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useful load
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variable load
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vehicular load
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wafer load
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water load
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waveguide load
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wheel load
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wind load
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wing load
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work load
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working load
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yield load -
107 engineer
I [ˌendʒɪ'nɪə(r)]nome (graduate) ingegnere m.; (in factory) meccanico m.; (repairer) tecnico m.; (on ship) macchinista m. e f.; AE ferr. macchinista m. e f.II [ˌendʒɪ'nɪə(r)]the (Royal) Engineers — mil. il genio
1) (plot) organizzare, architettare2) (build) costruire* * *1) (a person who designs, makes, or works with, machinery: an electrical engineer.) ingegnere2) ((usually civil engineer) a person who designs, constructs, or maintains roads, railways, bridges, sewers etc.) ingegnere (civile)3) (an officer who manages a ship's engines.) macchinista4) ((American) an engine-driver.) macchinista* * *I [ˌendʒɪ'nɪə(r)]nome (graduate) ingegnere m.; (in factory) meccanico m.; (repairer) tecnico m.; (on ship) macchinista m. e f.; AE ferr. macchinista m. e f.II [ˌendʒɪ'nɪə(r)]the (Royal) Engineers — mil. il genio
1) (plot) organizzare, architettare2) (build) costruire -
108 furnace
сокр. fceпечь; нагревательная печь, горн; вагранка; тока
- arc furnace
- box furnace
- brazing furnace
- continuous furnace
- controlled atmosphere furnace
- direct-fired furnace
- electric furnace
- electrical furnace
- electrically heated furnace
- electric-arc furnace
- fuel-fired furnace
- gas-fired furnace
- hardening furnace
- hearth furnace
- heating furnace
- heat-treatment furnace
- hydrogen brazing furnace
- induction furnace
- muffle furnace
- normalizing furnace
- preheat furnace
- recirculation furnace
- resistance furnace
- resistance-heating electric furnace
- resistor furnace
- reverberating furnace
- reverberatory furnace
- rotary furnace
- rotating furnace
- rotation furnace
- temper furnace
- tempering furnace
- travelling hearth furnace -
109 system
система- 1. Определенным образом скомпонованные части, составляющие взаимодействующую структуру - см. air-conditioning system, cooling system, heating system, heat pump, refrigerating system, thermal insulation system. 2. Схемы отопительной или охладительной машин, связанных обычно с теми частями, которые находятся в непосредственном контакте с нагревающей или охлаждающей средами. Эти схемы выбираются произвольно с учетом материалов и устройств для анализа их действия и аналитического изучения - см. также air-conditioning system, control system, defrosting system, expert system, heat exchanger system, heating system, refrigerating system, water system.
Англо-русский словарь по кондиционированию и вентиляции > system
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110 system
система- 1. Определенным образом скомпонованные части, составляющие взаимодействующую структуру - см. air-conditioning system, cooling system, heating system, heat pump, refrigerating system, thermal insulation system. 2. Схемы отопительной или охладительной машин, связанных обычно с теми частями, которые находятся в непосредственном контакте с нагревающей или охлаждающей средами. Эти схемы выбираются произвольно с учетом материалов и устройств для анализа их действия и аналитического изучения - см. также air-conditioning system, control system, defrosting system, expert system, heat exchanger system, heating system, refrigerating system, water system.
- combined heat and power (CHP) systemEnglish-Russian dictionary of terms for heating, ventilation, air conditioning and cooling air > system
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111 ignition
зажигание; воспламенение; вспышка; самовозгорание; ignition enhance - усиливать воспламенение; ignition by heated surface - воспламенение (зажигание) накаленной поверхностью; ignition by hot gases - воспламенение (зажигание! горючими газами; ignition by inductance spark - воспламенение (зажигание) индукционной искрой; ignition by shock wave воспламенение (зажигание) под действием ударной волны; ignition from radiant heat - воспламенение от теплоты излучения ignition accidental - случайное (непроизвольное) воспламенение ignition advanced - раннее зажигание ignition area - «площадное» загорание (возникновение нескольких пожаров одновременно на небольшом расстоянии один от другого) ignition autogenous - самовоспламенение, самовозгорание ignition automatic - автоматическое зажигание ignition battery - батарейное зажигание ignition chain - цепное воспламенение ignition chemical heating - воспламенение путем нагрева за счет химических реакций ignition coil - батарейное зажигание ignition compression - воспламенение от сжатия ignition convective heating - воспламенение путем конвективного нагрева ignition delay(ed) - замедленное зажигание (воспламенение), воспламенение с задержкой ignition electrical - электрическое зажигание ignition emergency - аварийное освещение ignition external - воспламенение от внешнего источника ignition flame - факельное зажигание, зажигание пусковым факелом ignition friction - воспламенение от трения ignition gas-phase - газофазное воспламенение ignition glow-plug - воспламенение электрозапалом ignition hot-wire - зажигание раскаленной проволокой или электрозапалом ignition hypergolic - самовоспламенение; зажигание самовоспламеняющимися компонентами топлива, химическое зажигание ignition impact - воспламенение (зажигание) от толчка (удара) ignition inadvertent - случайное (непреднамеренное) воспламенение ignition incendiary-type - пиропатронное зажигание огнесмеси ignition incomplete - неполное воспламенение ignition instantaneous - мгновенное одновременное) воспламенение (ракетного топлива) ignition late - позднее зажигание ignition pilot flame - факельное зажигание, зажигание пусковым факелом ignition poor - ослабленное воспламенение ignition retarded - позднее зажигание; воспламенение с задержкой ignition self(-energized) - самовоспламенение; зажигание с помощью самовоспламеняющихся компонентов ignition shock - воспламенение от удара ignition shock-wave - воспламенение под действием ударной волны ignition slug-start - самовоспламенение; зажигание самовоспла меняющимися компонентами (ракетного топлива) ignition soft - плавное (бездетонационное) воспламенение ignition spark-plug - искровое зажигание; зажигание запальной свечой ignition spontaneous - самовоспламенение, самовозгорание ignition thermal - тепловое воспламенение -
112 installation
1) установка; агрегат; система2) мн. ч. внутренние инженерные сети3) инженерное оборудование ( зданий); аппаратура4) монтаж ( инженерного оборудования); установка, монтаж и запуск (напр. системы водоподготовки); полная сборка оборудования•installation for conveying floor screed and mortar — установка для подачи строительного раствора и эстриха
- cleaning installation - compact mixing installation - desalination installation - electric calorific installation - firing installation - heating installation - lighting installation - mobile mixing installation on moving device - pipe installation - rapidly removable installation - stationary mixing installation - ventilation installation - weighing installationinstallation for the tooling concrete reinforcing steel installation — установка для обработки арматурной стали
* * *1. технологическая установка2. санитарно-техническая [инженерная] система; инженерное оборудование здания3. монтаж (напр. инженерного оборудования)- installation of flooring
- automatic flashing light installation
- dewatering installation
- domestic gas installation
- electrical installation
- extinguishing installation
- fan installation
- gas installation
- grouting installation
- heating installation
- internal gas installation
- pile installation
- profile dredging installation
- rainwater installation
- refrigerating installation
- reinforcing fabric installation
- sanitary installation
- spot cooling installation
- tor shock installation
- water installation -
113 ignition
зажигание; воспламенение (пиротехнического состава, заряда) ; запуск ( двигателя)ignition by heated surface — воспламенение [зажигание] накаленной поверхностью
ignition by hot gases — воспламенение [зажигание] горячими газами
ignition by inductance spark — воспламенение [зажигание] индукционной искрой
ignition by shock wave — воспламенение [зажигание] под действием ударной волны
ignition sensibilized by nitrogen dioxide — воспламенение, сенсибилизированное двуокисью азота
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114 protection
защита, предохранение -
115 Lovelock, James Ephraim
SUBJECT AREA: Domestic appliances and interiors, Electricity, Electronics and information technology[br]b. 26 July 1919 Brixton, London, England[br]English biologist and philosopher, inventor of the microwave oven and electron capture detector.[br]Lovelock was brought up in Brixton in modest circumstances. At the age of 4 he was given a toy electrical set, which first turned his attention towards the study of science. From the Strand School, Brixton, he went on to the universities of Manchester and London, and after graduating in science, in 1941 he joined the National Institute for Medical Research, Mill Hill, as a staff scientist, remaining there for twenty years. During the early 1950s, he and his colleagues were engaged in research into freezing live animals and bringing them back to life by heating: Lovelock was struck by the intense pain this process caused the animals, and he sought a more humane method. He tried diathermy or internal heating through the effect of a continuous wave magnetron borrowed from the Navy. He found that the animals were brought back to life painlessly, and impressed with his success he tried baking a potato for his lunch in the apparatus and found that it cooked amazingly quickly compared with the one hour normally needed in an ordinary oven. Lovelock had invented the microwave oven, but its commercial possibilities were not at first realized.In the late 1950s he invented the electron capture detector, which proved to be more sensitive than any other analytical equipment in detecting and measuring toxic substances. The apparatus therefore had obvious uses in testing the quality of the environment and so offered a tremendous boost to the "green" movement. In 1961 he was invited to joint the US National Aeronautics and Space Administration (NASA) to employ the apparatus in an attempt to detect life in space.In the early 1970s Lovelock relinquished his biological work in order to devote his attention to philosophical matters, specifically to develop his theory of the Universe, now widely celebrated as the "Gaia theory". In this controversial theory, Lovelock regards our planet and all its living beings, including humans, as a single living organism.[br]Principal Honours and DistinctionsCBE 1990. FRS 1974. Many academic awards and honorary degrees. Visiting Professor, University of Reading 1967–90.Bibliography1979, Gaia.1983, The Great Extinction.1988, The Ages of Gaia.1991, Gaia: The Practical Science of Planetary Medicine.LRDBiographical history of technology > Lovelock, James Ephraim
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116 unit
1) единица ( натуральное число)3) компонент; элемент; сборочная единица; узел; блок; модуль; секция4) звено; ячейка5) агрегат; установка; устройство; прибор6) сегмент, модуль ( программы)7) вчт. одиночная запись8) киловатт-час9) молекула; часть молекулы ( полимера)10) юнит (единица измерения короткомерного баланса, равная 5,66 складочных кубических метра)•to deprecate a unit — исключать единицу физической величины из числа рекомендованных или используемыхto disseminate the mass measurement unit — передавать размер единицы массыto generate a physical unit — воспроизводить размер единицы физической величиныto maintain a unit — поддерживать размер единицы физической величиныto realize a unit by absolute measurements — воспроизводить единицу физической величины с помощью абсолютных измеренийto transport [transmit\] a unit — передавать размер единицы физической величины-
addressing unit-
collating unit-
map unit-
SI units -
117 installation
1) инсталляция
2) инстилляция
3) <constr.> монтаж
4) установка
5) вселение
6) объект
7) сборка
– boiler installation
– cable installation
– communication installation
– consdumer's installation
– energy installation
– evaporator installation
– extinguishing installation
– freezing installation
– gas-turbine installation
– heating installation
– installation car
– installation diagram
– installation direction
– installation drawing
– installation kit
– installation of reinforcement
– installation time
– installation wire
– lighting installation
– milking installation
– pickling installation
– pipe installation
– process installation
– punched-card installation
– radar installation
– shake-out installation
– sprinkler installation
– unloading installation
– wire installation
gas and steam turbine installation — <engin.> установка турбинная газо-паровая
movable milking installation — передвижная доильная установка
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118 installation
noun1) (in an office or post) Amtseinsetzung, die2) (setting up for use) Installation, die; (of bathroom etc.) Einbau, der; (of telephone, cooker) Anschluss, der3) (apparatus etc. installed) Anlage, die* * *[instə'leiʃən]1) (the act of installing.) die Installierung2) (a piece of equipment that has been installed: The cooker, fridge and other electrical installations are all in working order.) die Anlage* * *in·stal·la·tion[ˌɪnstəˈleɪʃən]n1. no pl TECH of machinery Aufstellen nt; of an appliance, heating, plumbing Installation f; of kitchen, bathroom Einbau m; of electrical wiring, pipes Verlegung f; of telephone, washing machine Anschluss m; AM, AUS of carpet Verlegen nt; (setting up system) Montage fmilitary \installation militärische Anlage* * *["Instə'leISən]n1) (= action) Installation f (also Comput); (of telephone) Anschluss m; (of bath, kitchen, engine etc) Einbau m; (of person in office) Amtseinsetzung f or -einführung f; (of government) Einsetzung f; (of priest) Investitur f3)* * *installation [ˌınstəˈleıʃn] s1. TECH Installierung f, Installation f, Einbau m, Anschluss mmilitary installation militärische Anlage3. pl Inventar n4. (Amts)Einsetzung f, (-)Einführung f* * *noun1) (in an office or post) Amtseinsetzung, die2) (setting up for use) Installation, die; (of bathroom etc.) Einbau, der; (of telephone, cooker) Anschluss, der3) (apparatus etc. installed) Anlage, die* * *n.Einführung f.Einrichtung f.Installierung f. -
119 installation
1) монтаж; установка; сборка2) внедрение; реализация; ввод в эксплуатацию3) установка; агрегат; оборудование•- outdoor electrical installation -
120 conduit
1. канал; водовод, акведук2. жёлоб, лоток3. трубопровод4. кабелепроводcable conduit — кабелепровод, кабельный канал
5. спускной водовод6. спускной трубопроводbypass conduit — байпасный трубопровод; байпас
7. напорный водовод8. напорный трубопровод
См. также в других словарях:
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heating — I Process of raising the temperature of an enclosed space. Heat can be delivered by convection, radiation, and thermal conduction. With the exception of the ancient Romans, who developed a form of central heating, most cultures relied on direct… … Universalium
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