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21 power station
электростанция; генераторная станция; силовая станцияAt present most of the industrial enterprises have their own electric power stations. — В настоящее время большинство промышленных предприятий имеют свои собственные силовые электростанции.
Англо-русский универсальный дополнительный практический переводческий словарь И. Мостицкого > power station
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22 have the brains to do something
expr infmlThose children don't have the brains to profit from classroom teaching — Эти дети не понимают, что надо учиться, пока они ходят в школу
It was a good thing somebody had the brains to switch off all the power when the first explosion occurred — Хорошо еще, что у кого-то хватило ума отключить электроэнергию, когда произошел первый взрыв
The new dictionary of modern spoken language > have the brains to do something
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23 have one's back against (or to) the wall
быть пpипёpтым к cтeнe, нaxoдитьcя в oтчaяннoм пoлoжeнииAs for the dances and the fetish worship, the missionaries have not the power to stop them if they wished to: Christianity here has its back to the wall (Gr. Greene). I'm in the position of a man with his back to the wall. I'm fighting for my life (Th. Dreiser)Concise English-Russian phrasebook > have one's back against (or to) the wall
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24 have a firm grip on the reins of power
Общая лексика: прочно держать рычаги власти в своих рукахУниверсальный англо-русский словарь > have a firm grip on the reins of power
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25 have a tight grip on the reins of power
Общая лексика: прочно держать рычаги власти в своих рукахУниверсальный англо-русский словарь > have a tight grip on the reins of power
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26 have much power in
Финансы: иметь существенное влияние в -
27 have signatory power
Экономика: иметь право подписи -
28 have the most power
Общая лексика: пользоваться наибольшей властью -
29 have the power
1) Военный термин: стоять у власти2) Юридический термин: обладать полномочиями (to + inf.... -..., чтобы сделать что-л.)3) Макаров: (to) быть в силах -
30 have the power (to)
Макаров: быть в силах -
31 have the power of veto
1) Дипломатический термин: иметь право (налагать) вето2) Макаров: иметь право ветоУниверсальный англо-русский словарь > have the power of veto
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32 have signatory power
/vi/ иметь право подписи -
33 have the power of veto
Англо-русский дипломатический словарь > have the power of veto
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34 have the power
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35 have the power
English-Russian dictionary of terms that are used in computer games > have the power
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36 types of power factor correction
виды коррекции коэффициента мощности
-There are 2 types of power factor correction: fixed or automatic.
Fixed power factor correction consists of inserting, in parallel on the network, a capacitor bank whose total power is provided by the assembly of capacitors of identical or different ratings. The bank is energized by a contactor that simultaneously supplies all the capacitors (a single step).
The inrush current peak, in the case of fixed correction, can reach 30 times the nominal current of the capacitor bank.
An automatic power factor correction system, on the other hand, consists of several capacitor banks of identical or different ratings (several steps), energized separately according to the value of the power factor to be corrected.
An electronic device automatically determines the power of the steps to be energized and activates the relevant contactors.
The inrush current peak, in the case of automatic correction, depends on the power of the steps already on duty, and can reach 100 times the nominal current of the step to be energized.
[ABB]
PFC Types
There are two types of Power Factor Correction - Passive PFC and Active PFC.
Passive PFC uses passive elements like a ferrite core inductor on the AC input. It is very easy to implement in existing power circuits although the power factor is low at 60-80%. The proper AC input voltage (115V or 230V) must also be chosen manually. In addition, significant EMI can still result with a 115V AC source. Of course, a 230V AC source will not have this problem!.
Active PFC, on the other hand, uses a switching regulator with active elements like an IC, FETs (Field Effect Transistors) and diodes to create an active PFC circuit. This circuit allows the power supply to achieve a power factor of up to 95%, significantly reduce harmonics and automatically adjusts the AC input voltage. This means you do not have to manually select the AC input voltage. It works with all voltages from 110V to 240V.
[ http://www.techarp.com/showarticle.aspx?artno=81&pgno=1]
Тематики
EN
Англо-русский словарь нормативно-технической терминологии > types of power factor correction
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37 rated power
- расчетная мощность
- номинальная мощность электроагрегата (электростанции)
- номинальная мощность Sном
- номинальная мощность
номинальная мощность Sном
Полная мощность, определяющая вместе с номинальным напряжением номинальный ток обмотки.
Примечания
1 В двухобмоточном трансформаторе обе обмотки имеют одинаковую номинальную мощность, равную номинальной мощности трансформатора.
2 Для многообмоточного трансформатора половина суммы значений номинальных мощностей всех обмоток (раздельных обмоток без автотрансформаторного соединения) дает приблизительную оценку габаритных размеров многообмоточного трансформатора по сравнению с двухобмоточным трансформатором.
[ ГОСТ 30830-2002]EN
rated power
a conventional value of apparent power, establishing a basis for the design of a transformer, a shunt reactor or an arc-suppression coil, the manufacturer's guarantees and the tests, determining a value of the rated current that may be carried with rated voltage applied, under specified conditions
NOTE – Both windings of a two-winding transformer have the same rated power, which by definition is the rated power of the transformer. For multi-winding transformers the rated power for each of the windings may diffe
[IEV number 421-04-04]FR
puissance assignée
valeur conventionnelle de la puissance apparente, destinée à servir de base à la conception du transformateur, de la bobine d'inductance shunt ou de la bobine d'extinction d'arc, aux garanties du constructeur et aux essais, en déterminant une valeur de courant assigné admissible lorsque la tension assignée est appliquée, dans des conditions spécifiées
NOTE – Les deux enroulements d'un transformateur à deux enroulements ont la même puissance assignée, qui est par définition la puissance assignée du transformateur. Dans le cas de transformateurs à plus de deux enroulements, la puissance assignée de chacun des enroulements peut être différente
[IEV number 421-04-04]Тематики
Классификация
>>>EN
DE
номинальная мощность электроагрегата (электростанции)
номинальная мощность
Мощность, развиваемая электроагрегатом (электростанцией) без ограничения времени работы при номинальных значениях напряжения, тока, частоты вращения, частоты переменного тока, коэффициента мощности и при номинальных условиях эксплуатации, с учетом возможности развития максимальной мощности.
[ ГОСТ 20375-83]Тематики
Синонимы
EN
DE
расчетная мощность
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[Л.Г.Суменко. Англо-русский словарь по информационным технологиям. М.: ГП ЦНИИС, 2003.]Тематики
EN
55. Номинальная мощность электроагрегата (электростанции)
Номинальная мощность
D. Nennleistung
E. Rated power
Мощность, развиваемая электроагрегатом (электростанцией) без ограничения времени работы при номинальных значениях напряжения, тока, частоты вращения, частоты переменного тока, коэффициента мощности и при номинальных условиях эксплуатации, с учетом возможности развития максимальной мощности
Источник: ГОСТ 20375-83: Электроагрегаты и передвижные электростанции с двигателями внутреннего сгорания. Термины и определения оригинал документа
3.3 номинальная мощность (rated power): Потребляемая мощность, указанная для прибора производителем.
Источник: ГОСТ Р МЭК 62301-2011: Приборы бытовые электрические. Измерение потребляемой мощности в режиме ожидания оригинал документа
3.12 номинальная мощность (rated power): Величина мощности, объявленная производителем и соответствующая указанным режимам эксплуатации устройства или оборудования.
Примечание - Номинальная мощность - величина максимальной непрерывной электрической мощности, выдаваемой в режиме нормальной эксплуатации и при нормальных внешних условиях, которая была задана в процессе проектирования ВЭУ.
Источник: ГОСТ Р 54418.12.1-2011: Возобновляемая энергетика. Ветроэнергетика. Установки ветроэнергетические. Часть 12-1. Измерение мощности, вырабатываемой ветроэлектрическими установками оригинал документа
3.14 номинальная мощность (rated power), QH (QN): Реактивная мощность реактора, заданная для работы при номинальных напряжении и частоте.
Источник: ГОСТ Р 54801-2011: Трансформаторы тяговые и реакторы железнодорожного подвижного состава. Основные параметры и методы испытаний оригинал документа
Англо-русский словарь нормативно-технической терминологии > rated power
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38 primary switch mode power supply
- импульсный источник электропитания с коммутацией тока на первичной стороне
импульсный источник электропитания с коммутацией тока на первичной стороне
-In primary switch mode power supplies, the AC mains voltage is first rectified and smoothed and then chopped ("switched"). Chopping means that the DC voltage is switched periodically at a frequency of 40 to 200 kHz using a power transistor.
In contrast to linearly regulated power supplies, the power transistor does not act as a variable resistor but as a switch instead. This generates a square-wave AC voltage that is transformed to the secondary circuit using a high-frequency transformer. In the secondary circuit, the voltage is rectifi ed and smoothed. The quantity of energy transformed to the secondary circuit is controlled, depending on the load, by varying the chopping rate. The longer the transistor is conductive, the higher is the quantity of energy transformed to the secondary circuit ( pulse width modulation).
Due to the use of high-frequency AC voltage, primary switch mode power supplies have the decisive advantage that their transformer can be of much smaller size than required for the transformation of low frequencies. This reduces the weight and the dissipation inside the unit. The effi ciency of these units is between 85 and 95 %. Since the output voltage does not directly depend on the input voltage, these units can be used for a wide input voltage range and can even be supplied with DC voltage. Furthermore, it is possible to buffer short-time mains voltage breakdowns up to 200 ms. However, the power failure buffering time is limited by the size of capacitor C1 since a longer buffering time requires a higher capacity and thus a bigger size of the capacitor. Especially in case of small power supplies this is not desirable.
Therefore, a practicable compromise has to be made between the size of the power supply and the buffering time.
Primary switch mode power supplies can be used for all purposes. For example, they are suitable for the supply of all kind of electronics as well as for electromechanical applications.
[ABB]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > primary switch mode power supply
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39 linearly regulated power supply
линейный регулируемый источник электропитания
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Рис. ABBThe AC mains voltage is transformed to a lower level, rectified and smoothed by capacitor C1. Then, voltage regulation is performed, typically using a power transistor. The power transistor acts as a variable resistor, controlled to keep the output voltage constant.
The efficiency of linearly regulated power supplies is only approx. 50 % due to the high losses inside the power transistor. The remaining energy is emitted in the form of heat. Due to this, sufficient ventilation is required to cool the power supply. Compared with unregulated power supplies, linearly regulated power supplies have a very small residual ripple of the output voltage (in the dimension of millivolts).
Linearly regulated power supplies are used for all applications that require a very exact output voltage, e.g. for highly precise medical devices.
[ABB]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > linearly regulated power supply
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40 tidal power
энергия прилива
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
tidal power
Mechanical power, which may be converted to electrical power, generated by the rise and fall of ocean tides. The possibilities of utilizing tidal power have been studied for many generations, but the only feasible schemes devised so far are based on the use of one or more tidal basins, separated from the sea by dams (known as barrages), and of hydraulic turbines through which water passes on its way between the basins and the sea. (Source: ALL)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
энергия приливов и отливов
—
[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > tidal power
См. также в других словарях:
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