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1 разложить на части
General subject: decompose, reduce to elements, reduce to its components, reduce to its elementsУниверсальный русско-английский словарь > разложить на части
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2 виды коррекции коэффициента мощности
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.
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Тематики
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Русско-английский словарь нормативно-технической терминологии > виды коррекции коэффициента мощности
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3 тем самым
[p].[/p•A sodium atom loses one electron and a chlorine atom gains one electron because, by doing so, a more stable electronic configuration is formed by both elements.
•Magnetostatic fields always oppose the magnetization and in doing so (or in so doing) they reduce the overall magnetization of...
•No clamping device is needed and the reliability of the sets is thereby greatly increased.
•The balance weight for the side head is completely enclosed in the column thus affording complete protection to operator and machine.
Русско-английский научно-технический словарь переводчика > тем самым
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4 элементарная часть
Русско-английский большой базовый словарь > элементарная часть
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5 защита природы
защита природы
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
nature protection
Precautionary actions, procedures or installations undertaken to prevent or reduce harm to the elements of the material world that exist independently of human activity. (Source: RHW)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-английский словарь нормативно-технической терминологии > защита природы
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