have you already chosen

she chose a pale pink skirt — ha scelto una gonna rosa pallido

to choose between — scegliere tra

there is nothing to choose between them — uno vale l'altro

I don't know which to choose — non so quale scegliere

have you already chosen? — hai già scelto?

there were several to choose from — vi era parecchia scelta

the car struck a pedestrian — das Auto erfasste einen Fußgänger

strike two punches — zweimal zuschlagen

strike somebody a blow — jemandem einen Schlag versetzen

be struck blind/dumb — erblinden/verstummen

strike lucky — Glück haben

official/unofficial strike — offizieller/wilder Streik

to be on strike — streiken, im Ausstand sein

to be on official/unofficial strike — offiziell/wild streiken

to come out on strike, to go on strike — in den Streik or Ausstand treten

to bring sb out on strike — jdn zum Streik veranlassen

a big oil strike — ein großer Ölfund

to make a strike — fündig werden

three strikes and you're out — wenn du den Ball dreimal verfehlst, bist du draußen

he got three strikes — drei haben angebissen

to strike one's fist on the table, to strike the table with one's fist — mit der Faust auf den Tisch schlagen

to strike sb/sth a blow — jdm/einer Sache einen Schlag versetzen

who struck the first blow? — wer hat zuerst (zu)geschlagen?

to be struck by lightning —

a terrible sight struck my eyes — plötzlich sah ich etwas Schreckliches

to strike the hour — die volle Stunde schlagen

to strike 4 — 4 schlagen

that struck a familiar note — das kam mir/ihm etc bekannt vor

to strike sb as cold/unlikely etc — jdm kalt/unwahrscheinlich etc vorkommen

that strikes me as a good idea — das kommt mir sehr vernünftig vor

a thought struck me — mir kam plötzlich ein Gedanke

to be struck by sth — von etw beeindruckt sein

how does it strike you? — wie finden Sie das?, was halten Sie davon?

how does she strike you? — welchen Eindruck haben Sie von ihr?

to strike a light — Feuer machen

to strike a match —

to strike sparks — Funken schlagen

to strike fear or terror into sb/sb's heart —

to strike it rich — das große Geld machen

stricken from a list/the record — von einer Liste/aus dem Protokoll gestrichen werden

to strike against sth — gegen etw stoßen

they struck at his weakest point — sie trafen ihn an seinem wundesten Punkt

to strike at the roots of sth — etw an der Wurzel treffen

to put sb within striking distance of sth — jdn in Reichweite von etw bringen

to come within striking distance of doing sth — nahe daran sein, etw zu tun

they were within striking distance of success —

the snake struck at me — die Schlange fuhr auf mich los

when midnight strikes — wenn es Mitternacht schlägt

inspiration struck — er/sie etc hatte eine Eingebung

to strike on a new idea — eine neue Idee haben, auf eine neue Idee kommen

(= go in a certain direction) to strike across country — querfeldein gehen

to strike into the woods — sich in die Wälder schlagen

the sun struck through the mist — die Sonne brach durch den Dunst

the car struck a pedestrian — das Auto erfasste einen Fußgänger

the ship struck the rocks — das Schiff lief auf die Felsen

strike two punches — zweimal zuschlagen

strike somebody a blow — jemandem einen Schlag versetzen

who struck [the] first blow? — wer hat zuerst geschlagen?

it strikes somebody that... — es scheint jemandem, dass...

how does it strike you? — was hältst du davon?

a heart attack struck him dead — er erlag einem Herzanfall

be struck blind/dumb — erblinden/verstummen

strike lucky — Glück haben

few people know about this — lo sabe poca gente, lo saben pocos

there were six books too few — faltaban seis libros

every few days — cada pocos días

the last few days have been difficult — estos últimos días han sido difíciles

there were fewer people than usual — había menos gente que de costumbre

fewer and fewer trains stop here — cada vez paran menos trenes aquí

a few — ( some)

a few people complained — algunos se quejaron/bastante gente se quejó

I've been there a few times — he estado allí unas cuantas veces

there are quite a few mistakes — hay bastantes faltas

we have too few to go around — no tenemos suficientes para todos

the privileged few — la minoría privilegiada

as few as 30% pass first time — tan sólo un 30% aprueba a la primera

fewer than 200 tickets have been sold — se han vendido menos de 200 entradas

to be few and far between: good beaches are few and far between — las playas buenas son contadísimas

a few — ( some)

a few objected — algunos se opusieron

all but a few — casi todos

a good few o quite a few already know — ya lo saben bastantes

there are still quite a few left — todavía quedan unos cuantos

a few of us complained — algunos (de nosotros) nos quejamos

he's had a few (too many) — (colloq) se ha tomado unas cuantas

few books — pocos libros

few of them — pocos (de ellos)

only a few — solo unos pocos

only a few of them came — solo vinieron unos pocos

there are very few of us, we are very few — somos muy pocos

few (people) managed to do it — muy pocos consiguieron hacerlo

the few who... — los pocos que...

she is one of the few (people) who... — ella es una de los pocos que...

such men are few — hay pocos hombres así

there were three too few — faltaban tres

a few — algunos

a good few, quite a few — bastantes

(in) a few more days — dentro de unos pocos días

few people know about this — lo sabe poca gente, lo saben pocos

there were six books too few — faltaban seis libros

every few days — cada pocos días

the last few days have been difficult — estos últimos días han sido difíciles

there were fewer people than usual — había menos gente que de costumbre

fewer and fewer trains stop here — cada vez paran menos trenes aquí

a few — ( some)

a few people complained — algunos se quejaron/bastante gente se quejó

I've been there a few times — he estado allí unas cuantas veces

there are quite a few mistakes — hay bastantes faltas

we have too few to go around — no tenemos suficientes para todos

the privileged few — la minoría privilegiada

as few as 30% pass first time — tan sólo un 30% aprueba a la primera

fewer than 200 tickets have been sold — se han vendido menos de 200 entradas

to be few and far between: good beaches are few and far between — las playas buenas son contadísimas

a few — ( some)

a few objected — algunos se opusieron

all but a few — casi todos

a good few o quite a few already know — ya lo saben bastantes

there are still quite a few left — todavía quedan unos cuantos

a few of us complained — algunos (de nosotros) nos quejamos

he's had a few (too many) — (colloq) se ha tomado unas cuantas

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

• компенсация реактивной мощности

EN

• PFC types
• 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

• компенсация реактивной мощности

EN

• PFC types
• types of power factor correction