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61 Transformatorstation
Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Transformatorstation
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62 Umspannstation
Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Umspannstation
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63 подстанция
ж. substationтелефонная подстанция — sub-exchange; suboffice
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64 усилитель
м. amplifierусилитель высокой частоты — high-frequency amplifier; radio-frequency amplifier
усилитель гармоник — harmonic amplifier; selective amplifier
дроссельный усилитель — choke-capacitance-coupled amplifier; impedance-coupled amplifier
ламповый усилитель — valve amplifier; vacuum-tube amplifier
линейный усилитель — linear amplifier; line amplifier
усилитель на дросселях — choke-coupled amplifier; impedance-coupled amplifier
усилитель низкой частоты — low-frequency amplifier; audio-frequency amplifier
усилитель следящей системы; сервоусилитель — servo amplifier
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65 Jablochkoff, Paul
[br]b. 14 September 1847 Serdobsk, Russiad. April 1894 St Petersburg, Russia[br]Russian military engineer and inventor of an electric "candle", the invention of which gave an immense impetus to electric lighting in the 1870s.[br]Jablochkoff studied at the Military Engineering College in St Petersburg. Having a scientific bent, he was sent to the Military Galvano Technical School. At the end of his military service in 1871 he was appointed Director General of the Moscow-Kursk telegraph lines for the Midi Railway Company. At this time he began to develop an interest in electric lighting, and in 1875 he left the Imperial Telegraph Service to devote his time exclusively to scientific pursuits. He found employment at the workshop of M Bréguet in Paris, where Gramme dynamos and Serrin arc lamps were being constructed. After some experimentation he found a means of producing a carbon arc that regulated itself without any mechanism. This lamp, the Jablochkoff candle, with two carbon rods placed parallel to each other and so close that an arc formed at the ends, could continue to burn until the rods were consumed. Plaster of Paris was used to separate the two electrodes and crumbled away as the carbon burned, thus exposing fresh carbon. These lamps were used in May 1878 in Paris to illuminate the avenue de l'Opéra, and later in Rome and London, and in essence were the first practical electric street lighting. Since there was no regulating mechanism, several candles could be placed in a single circuit. Despite inherent defects, such as the inability to restart the lamps after they were extinguished by wind or interruption of supply, they remained in use for some purposes for several years on account of their simplicity and cheapness. In 1877 Jablochkoff obtained the earliest patent to employ transformers to distribute current in an alternating-current circuit.[br]Bibliography11 September 1876, British patent no. 3,552 (Jablochkoff's candle).22 May 1877, British patent no. 1,996 (transformer or induction coil distribution).Further ReadingW.J.King, 1962, The Development of Electrical Technology in the 19th Century, Washington, DC: Smithsonian Institution, Paper 30, pp. 393–407 (a detailed account). W.E.Langdon, 1877, "On a new form of electric light", Journal of the Society ofTelegraph Engineers 6:303–19 (an early report on Jablochkoffs system).Engineering (1878) 26:125–7.GW -
66 комплектное распределительное устройство среднего напряжения
комплектное распределительное устройство среднего напряжения
-Safety enclosed boards are used for most new installations. Common terms used to designate equipment of this type are metal-enclosed switchgear and metal-clad switchgear.
Most safety enclosed boards are of the unit or sectional type. They consist of a combination of the desired number and type of standardized unit sections.
Each section is a standard factory-assembled combination of a formed steel panel and apparatus mounted on a steel framework.
Safety enclosed switchgear may be classified with respect to purpose of application as follows:
1. General medium- or high- voltage switchgear
2. Primary unit substations
3. Rectifier unit substations
4. Secondary unit substations or power centers
5. General low-voltage switchgear
6. Low-voltage distribution switchboards
7. Motor-control-center switchboards
[American electricians’ handbook]
Medium-voltage switchgear (Fig. 4.115) provides for the required control and metering equipment for generators, transformer supply circuits, feeders, large motors, etc., for systems with voltage up to 15,000 V. A large variety of standardized units is available
FIGURE 4.115 Medium-voltage metal-enclosed switchgear. [Westinghouse Electric Corp.][American electricians’ handbook]
Тематики
- комплектное распред. устройство (КРУ)
Синонимы
EN
Русско-английский словарь нормативно-технической терминологии > комплектное распределительное устройство среднего напряжения
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67 непрерывность электроснабжения
непрерывность электроснабжения
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[Интент]Параллельные тексты EN-RU
In public distribution, in the short term priority is given to continuity of service.
[Legrand]В сетях общего пользования приоритет отдается непрерывности электроснабжения.
[Перевод Интент]To guarantee maximum continuity of service even when there are overloads it is essential that the loads considered non-priority are managed and disconnected when needed by the transformer on the Low-Voltage side.
[Legrand]Для обеспечения максимальной непрерывности электроснабжения в условиях перегрузки, все нагрузки делят на основные, энергоснабжение которых не должно прерываться, и неприоритетные, электроснабжение которых можно при необходимости отключить на стороне низшего напряжения трансформатора.
[Перевод Интент]
Тематики
EN
Русско-английский словарь нормативно-технической терминологии > непрерывность электроснабжения
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