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21 Stern-Dreieck-Anlauf
пуск переключением со звезды на треугольник
-EN
star-delta starting
the process of starting a three-phase motor by connecting it to the supply with the primary winding initially connected in star, then reconnected in delta for the running condition
[IEV number 411-52-16]FR
démarrage étoile-triangle
mode de démarrage d'un moteur triphasé à tension réduite, consistant à relier à la source à tension constante les enroulements statoriques, d'abord en couplage étoile, puis à passer au couplage triangle pour le fonctionnement normal
[IEV number 411-52-16]
Magnetic only circuit-breaker - Автоматический выключатель с электромагнитным расцепителем
Y/Δ changeover node - Узел переключения со звезды на треугольник
Contactor KL - Контактор KL
Thermal relay - Тепловое реле
Contactor KΔ - Контактор KΔ
Contactor KY- Контактор KY
Параллельные тексты EN-RU Star-delta Y/Δ starting
Star-delta starting is the best known system and perhaps the commonest starting system at reduced voltage; it is used to start the motor reducing the mechanical stresses and limiting the current values during starting; on the other hand, it makes available a reduced inrush torque.This system can be used for motors with terminal box with 6 terminals and double supply voltage.
It is particularly suitable for no-load starting or with low and constant load torque or lightly increasing load torque, such as in the case of fans or low power centrifugal pumps.
Making reference to the diagram of Figure 6, the starting modality foresees the initial phase with star-connection of the windings to be realized through the closing of the circuit-breaker, of the line contactor KL and of the star contactor KY.
After a suitable predetermined period of time, the opening of the contactor KY and the closing of KΔ allow switching to delta-connection, which is also the configuration of normal running position.
[ABB]Пуск переключением со звезды на треугольник
Пуск переключением со звезды на треугольник является самым известным способом и, возможно, самой распространенной схемой пуска на пониженном напряжении. С одной стороны, этот способ используется для снижения механических нагрузок и ограничения пускового тока, а с другой - обеспечивает уменьшение пускового момента.Такая возможность может быть реализована в двигателях с шестью зажимами в выводной коробке, что позволяет питать его от двух напряжений.
Особенно этот способ подходит для ненагруженного пуска и пуска с низким постоянным или немного увеличивающимся вращающим моментом, например, для пуска вентиляторов или маломощных центробежных насосов.
Схема пуска переключением со звезды на треугольник представлена на рисунке 6. В начальный момент пуска обмотки статора соединяют звездой путем замыкания контактов автоматического выключателя, линейного контактора KL и контактора KY со схемой "звезда".
По истечении заданного времени контакты контактора KY размыкаются и замыкаются контакты контактора КΔ со схемой треугольник.
В результате выполняется переключение обмоток статора со схемы «звезда» на схему «треугольник».
Обе схемы соединения обмоток являются схемами нормального рабочего режима.
[Перевод Интент]Тематики
Обобщающие термины
EN
- star-delta starting
- Y/Δ starting
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FR
Немецко-русский словарь нормативно-технической терминологии > Stern-Dreieck-Anlauf
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22 Emissionsüberwachung
регулирование выбросов
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
emission control
Procedures aiming at reducing or preventing the harm caused by atmospheric emissions. (Source: RRDA)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > Emissionsüberwachung
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23 reduzierende Substanzen
редуцирующие вещества (продукта сахарного производства)
Органические вещества, способные восстанавливать в щелочной среде оксид меди в закись в продуктах сахарного производства.
[ ГОСТ 26884-2002]Тематики
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Немецко-русский словарь нормативно-технической терминологии > reduzierende Substanzen
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24 Schlammverbrennung
сжигание ила
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
sludge incineration
A method used for drying and reducing sludge volume and weight. Since incineration requires auxiliary fuel to obtain and maintain high temperature and to evaporate the water contained in the incoming sludge, concentration techniques should be applied before incineration. Sludge incineration is a two-step process involving drying and combustion after a preceding dewatering process, such as filters, drying beds, or centrifuges. (Source: CORBIT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > Schlammverbrennung
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25 Schadstoffminderung
снижение содержания загрязняющих веществ
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
pollutant reduction
All measures aimed at reducing pollutants often through physical or chemical removal of toxic, or potentially toxic, materials. (Source: ISEP / FFD)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > Schadstoffminderung
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26 Abbruchunternehmen
снос зданий и сооружений как вид деятельности
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
demolition business
The activity of reducing buildings or other structures to rubble. (Source: OED)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > Abbruchunternehmen
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27 Meereskreislauf
циркуляция морской воды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
sea circulation
Large-scale horizontal water motion within an ocean. The way energy from the sun, stored in the sea, is transported around the world. The currents explain, for example, why the UK has ice-free ports in winter, while St. Petersburg, at the same latitude as the Shetland Islands, needs ice breakers. Evidence is growing that the world's ocean circulation was very different during the last ice age and has changed several times in the distant past, with dramatic effects on climate. The oceans are vital as storehouses, as they absorb more than half the sun's heat reaching the earth. This heat, which is primarily absorbed near the equator is carried around the world and released elsewhere, creating currents which last up to 1.000 years. As the Earth rotates and the wind acts upon the surface, currents carry warm tropical water to the cooler parts of the world. The strength and direction of the currents are affected by landmasses, bottlenecks through narrow straits, and even the shape of the sea-bed. When the warm water reaches polar regions its heat evaporates into the atmosphere, reducing its temperature and increasing its density. When sea-water freezes it leaves salt behind in the unfrozen water and this cold water sinks into the ocean and begins to flow back to the tropics. Eventually it is heated and begins the cycle all over again. (Source: MGH / WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > Meereskreislauf
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28 Zerkleinerungsrückstände
шлифовально-мельничные отходы
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
residue of grinding
Dust or other residue left after reducing a material to very small particles. (Source: MHD)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > Zerkleinerungsrückstände
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29 umweltorientierte Unternehmensführung
экологически ответственный менеджмент
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
environmentally friendly management
Adoption of integrated and preventative management practices aiming at reducing the impacts of industrial and trade activities on the environment; these practices include, among others, life-cycle analysis in the product development cycle, the introduction of clean process technology and measures of waste minimisation. (Source: DOBRIS)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Немецко-русский словарь нормативно-технической терминологии > umweltorientierte Unternehmensführung
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См. также в других словарях:
Reducing — Re*du cing (r?*d? s?ng), a & n. from {Reduce}. [1913 Webster] {Reducing furnace} (Metal.), a furnace for reducing ores. {Reducing pipe fitting}, a pipe fitting, as a coupling, an elbow, a tee, etc., for connecting a large pipe with a smaller one … The Collaborative International Dictionary of English
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reducing — noun 1. any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent (Freq. 1) • Syn: ↑reduction • Derivationally related forms: ↑reduce •… … Useful english dictionary
Reducing sugar — Reducing form of glucose A reducing sugar is any sugar that either has an aldehyde group or is capable of forming one in solution through isomerisation. This functional group allows the sugar to act as a reducing agent, for example in the Tollens … Wikipedia
Reducing furnace — Reducing Re*du cing (r?*d? s?ng), a & n. from {Reduce}. [1913 Webster] {Reducing furnace} (Metal.), a furnace for reducing ores. {Reducing pipe fitting}, a pipe fitting, as a coupling, an elbow, a tee, etc., for connecting a large pipe with a… … The Collaborative International Dictionary of English
Reducing pipe fitting — Reducing Re*du cing (r?*d? s?ng), a & n. from {Reduce}. [1913 Webster] {Reducing furnace} (Metal.), a furnace for reducing ores. {Reducing pipe fitting}, a pipe fitting, as a coupling, an elbow, a tee, etc., for connecting a large pipe with a… … The Collaborative International Dictionary of English
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reducing sugar — n a sugar (as glucose, maltose, or lactose) that is capable of reducing a mild oxidizing agent (as Fehling solution) see BENEDICT S TEST compare NONREDUCING * * * any sugar that can act as a reducing agent in an alkaline solution; included are… … Medical dictionary
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