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121 параллельный интерфейс
Русско-английский словарь по информационным технологиям > параллельный интерфейс
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122 цепь
взрывная цепьexplosive chainвключать цепьconnect in circuitвключенная цепьarmed circuitвходная цепьinput circuitвыходная цепьoutput circuitглавная магистральная цепь связиmain trunk circuitзамкнутая цепьclosed circuitзамыкать цепьclose the circuitзащищать цепьprotect the circuitинтегральная цепьintergrated circuitкольцевая цепьloop circuitкоммутационная цепьswitching circuitмногоканальная цепьmultichannel circuitнапрямую замкнутая цепьshort circuitнезамкнутая цепьopened circuitпараллельная цепьparallel circuitпоследовательная цепьseries circuitразмыкать цепьopen the circuitразорванная цепьbroken circuitрезервная цепь1. standby circuit2. backup circuit сеть коммутируемых цепейcircuit switched networkсигнал о неисправности цепиcircuit alarmцепь блокировки1. interlocking circuit2. locking-out circuit цепь взрываdestruct circuitцепь воспламененияfiring circuitцепь встроенного контроляbuilt-in test circuitцепь зажиганияignition circuitцепь заземленияground circuitцепь запускаstarting circuitцепь защиты сетиprotective circuitцепь контроляmonitoring circuitцепь коррекцииerection circuitцепь нагрузкиload circuitцепь обнаружения отказаfailure detection circuitцепь обратной связиfeedback circuitцепь оповещенияalert circuitцепь питанияfeed circuitцепь подачи питанияpower supply circuitцепь поля возбуждения1. exciting circuit2. field circuit цепь прямой речевой связиdirect speech circuitцепь радиосвязиradio link circuitцепь самоконтроляself-test circuitцепь связиcoupling circuitцепь сигнализацииwarning circuitцепь спутниковой связиsatellite circuitцепь управленияcontrol circuitцепь фиксированной авиационной связиaeronautical fixed circuit -
123 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.
[ http://www.techarp.com/showarticle.aspx?artno=81&pgno=1]
Тематики
EN
Русско-английский словарь нормативно-технической терминологии > виды коррекции коэффициента мощности
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124 реактор последовательного включения
реактор последовательного включения
Реактор, включаемый последовательно в фазу сети переменного тока или полюс сети постоянного тока
[ ГОСТ 18624-73]EN
series reactor
a reactor intended for series connection in a network, either for limiting the current under fault conditions or for load-sharing in parallel circuits
[IEV ref 421-01-02]FR
(bobine d')inductance série
bobine d'inductance destinée à être placée en série dans un réseau, soit pour limiter le courant dans le cas de défaut dans le réseau, soit pour répartir la charge dans des circuits en parallèle
[IEV ref 421-01-02]Тематики
Классификация
>>>Обобщающие термины
EN
FR
Русско-английский словарь нормативно-технической терминологии > реактор последовательного включения
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125 токоограничивающий реактор
токоограничивающий реактор
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[ ГОСТ 18624-73]EN
current-limiting reactor
reactor connected in series in a power system to limit the current under system fault conditions
[IEC 60076-6, ed. 1.0 (2007-12)]
series reactor
a reactor intended for series connection in a network, either for limiting the current under fault conditions or for load-sharing in parallel circuits
[IEV ref 421-01-02]FR
bobine d’inductance de limitation de courant
bobine d’inductance connectée en série dans un réseau pour limiter le courant en cas de conditions de défaut dans le réseau
[IEC 60076-6, ed. 1.0 (2007-12)]
(bobine d')inductance série
bobine d'inductance destinée à être placée en série dans un réseau, soit pour limiter le courant dans le cas de défaut dans le réseau, soit pour répartir la charge dans des circuits en parallèle
[IEV ref 421-01-02]Тематики
Классификация
>>>Обобщающие термины
EN
FR
- bobine d’inductance de limitation de courant
Русско-английский словарь нормативно-технической терминологии > токоограничивающий реактор
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