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1 tension de choc
импульс напряжения в системе электроснабжения
Резкое изменение напряжения в системе электроснабжения, длящееся малый интервал времени относительно определенного интервала времени.
Примечание. Импульс напряжения возникает при коммутационных операциях, грозовых явлениях.
[ ГОСТ 23875-88]EN
voltage impulse
a transient voltage wave applied to a line or equipment, characterized by a rapid increase, followed generally by a slower non-oscillatory decrease of the voltage
[IEV number 604-03-14]FR
tension de choc
onde de tension transitoire appliquée à une ligne ou à un matériel, caractérisée par une montée rapide de la tension suivie généralement d'une décroissance plus lente et non oscillatoire
[IEV number 604-03-14]Тематики
EN
DE
FR
Смотри также
22. Импульс напряжения в системе электроснабжения
D. Stoßspannung
E. Voltage impulse
F. Tension de choc
Резкое изменение напряжения в системе электроснабжения, длящееся малый интервал времени относительно определенного интервала времени.
Примечание. Импульс напряжения возникает при коммутационных операциях, грозовых явлениях
Источник: ГОСТ 23875-88: Качество электрической энергии. Термины и определения оригинал документа
Франко-русский словарь нормативно-технической терминологии > tension de choc
2 effondrement de la tension
посадка напряжения
Внезапное значительное снижение напряжения в системе электроснабжения.
[ ГОСТ 23875-88]EN
voltage collapse
sudden decrease in voltage leading to loss of voltage in the whole or a part of a power system
NOTE – A cascading tripping of generating units and/or transmission lines usually occurs during voltage collapse.
[IEV number 604-01-22 ]
voltage depression
system condition characterized by a sustained and significant lowering of voltage in the whole or part of a power system
[IEV number 604-01-44]FR
écroulement de la tension
baisse soudaine de la tension conduisant à la disparition de la tension dans tout ou partie d'un réseau d'énergie électrique
NOTE – Des déclenchements en cascade d'unités de production et/ou de lignes de transport d'énergie électrique se produisent généralement lors d'un écroulement de la tension.
[IEV number 604-01-22 ]
baisse profonde de la tension
état d'un réseau d'énergie électrique caractérisé par une baisse durable et significative de la tension dans tout ou partie du réseau
[IEV number 604-01-44]Тематики
EN
DE
FR
Смотри также
D. Spannungszusammenbruch
E. Voltage depression (voltage collapse)
F. Effondrement de la tension
Внезапное значительное снижение напряжения в системе электроснабжения
Источник: ГОСТ 23875-88: Качество электрической энергии. Термины и определения оригинал документа
Франко-русский словарь нормативно-технической терминологии > effondrement de la tension
3 baisse profonde de la tension
посадка напряжения
Внезапное значительное снижение напряжения в системе электроснабжения.
[ ГОСТ 23875-88]EN
voltage collapse
sudden decrease in voltage leading to loss of voltage in the whole or a part of a power system
NOTE – A cascading tripping of generating units and/or transmission lines usually occurs during voltage collapse.
[IEV number 604-01-22 ]
voltage depression
system condition characterized by a sustained and significant lowering of voltage in the whole or part of a power system
[IEV number 604-01-44]FR
écroulement de la tension
baisse soudaine de la tension conduisant à la disparition de la tension dans tout ou partie d'un réseau d'énergie électrique
NOTE – Des déclenchements en cascade d'unités de production et/ou de lignes de transport d'énergie électrique se produisent généralement lors d'un écroulement de la tension.
[IEV number 604-01-22 ]
baisse profonde de la tension
état d'un réseau d'énergie électrique caractérisé par une baisse durable et significative de la tension dans tout ou partie du réseau
[IEV number 604-01-44]Тематики
EN
DE
FR
Смотри также
Франко-русский словарь нормативно-технической терминологии > baisse profonde de la tension
4 durée d'une variation de tension
длительность изменения напряжения
Интервал времени от начала одиночного изменения напряжения до его конечного значения.
[ ГОСТ 13109-97]EN
duration of a voltage change
interval of time for the voltage to increase or decrease from the initial value to the final value
[IEV number 161-08-03]FR
durée d'une variation de tension
durée d'un intervalle de temps pendant lequel la tension croît ou décroît de sa valeur initiale avant une variation de tension à sa valeur finale
[IEV number 161-08-03]Тематики
EN
DE
FR
Франко-русский словарь нормативно-технической терминологии > durée d'une variation de tension
5 diminuer
diminuer [diminye]➭ TABLE 11. transitive verba. ( = réduire) to reduceb. ( = rabaisser) [+ mérite, talent] to belittle2. intransitive verba. [violence, intensité, intérêt, ardeur] to diminish ; [lumière] to fade ; [bruit] to die down ; [pluie] to let upb. [effectifs, nombre, valeur, pression] to decrease ; [provisions] to run low ; [forces] to decline* * *diminɥe
1.
1) ( réduire) to reduce [quantité, durée, niveau, frais, risques] (à to; de by); to lower [taux, taxe, salaire]2) ( modérer) to dampen [enthousiasme, courage]3) ( rabaisser) [personne] to belittle [exploit, personne]; [fait]diminuer les mérites/le talent de quelqu'un — to detract from somebody's merits/talent
4) ( affaiblir) to weaken [personne]; to sap [forces]5) ( en tricot) to decrease [mailles]
2.
verbe intransitif1) ( se réduire) [facture, chômage, taux, prix] to come ou go down (de by); [pouvoir d'achat] to be reduced; [salaire] to fall; [écart] to close; [réserves, consommation, quantité] to decrease; [croissance, volume, déficit, différence] to decrease; [production, ventes, demande] to fall off; [bougie, bouteille] to go down2) ( faiblir) [activité, intérêt, attaques, violence] to fall off; [pression, tension] to decrease; [bruit, flamme, orage, rire, rumeurs, colère] to die down; [forces, capacités] to diminish; [courage] to fail; [ardeur] to cool; [température, fièvre] to go down* * *diminɥe1. vt1) [niveau, nombre, coût, prix, dépense, effectif, production, risque] to reduce, [pression] to reduce, [taux] to reduce, to lower, [crédits] to reduce, to cut2) [ardeur, intérêt] to lessen3) [personne] (physiquement) to weaken4) (= dénigrer) to belittle2. vi[pression] to decrease, [prix, nombre, effectifs] to go down, [impôts, volume, fréquence, risques] to decrease, [température] to go down, to fall* * *diminuer verb table: aimerA vtr1 ( réduire) to reduce [quantité, intensité, durée, niveau, chances] (à to; de by); to lower [taux, taxe, salaire]; pour diminuer les frais/pertes/risques to reduce the cost/losses/risks; diminuer sa consommation d'alcool to reduce one's alcohol intake;2 ( modérer) to dampen [enthousiasme, courage]; le salaire proposé a vite diminué mon ardeur the salary which was offered soon dampened my enthusiasm;3 ( dénigrer) to diminish [exploit, succès, réussite]; diminuer les mérites/le talent de qn to detract from sb's merits/talent;5 ( en tricot) to decrease [mailles] ; diminuez deux mailles à chaque rang decrease (by) two stitches on every row; diminuez de deux mailles decrease (by) two stitches; arrêtez de diminuer stop decreasing.B vi1 ( se réduire) [facture, montant, chômage, taux, prix] to come ou go down (de by), to decrease (de by); [écart] to close; [réserves, consommation, quantité] to decrease, to diminish; [croissance, volume, déficit, différence] to decrease; [production, ventes, demande] to fall off; [bougie, bouteille] to go down; notre pouvoir d'achat/notre salaire a diminué our purchasing power/our salary has gone down; les jours diminuent the days are getting shorter;2 ( faiblir) [activité, intérêt, attaques, violence] to fall off; [pression, tension] to decrease, to diminish; [bruit, flamme, orage, rire, rumeurs, colère] to die down; [forces, capacités] to diminish; [courage] to fail; [ardeur] to cool; [température, fièvre] to go down.[diminɥe] verbe transitif1. [réduire - prix, impôts, frais, ration] to reduce, to cut ; [ - longueur] to shorten ; [ - taille, effectifs, volume, vitesse, consommation] to reduce2. [affaiblir - personne][déprécier - qualité]cela ne diminue en rien votre mérite this doesn't detract from ou lessen your merit at all4. [en tricot] to decrease6. (familier) [employé] to cut the pay of————————[diminɥe] verbe intransitif[volume] to decrease2. [s'affaiblir - forces] to ebb away, to wane, to lessen ; [ - peur] to lessen ; [ - intérêt, attention] to drop, to lessen, to dwindle3. [raccourcir]les jours diminuent the days are getting shorter ou drawing in6 baisser
baisser [bese]➭ TABLE 11. transitive verba. to lower• elle entra, les yeux baissés she came in with downcast eyesb. [+ chauffage, éclairage, radio, son] to turn down ; [+ voix] to lowerc. [+ prix] to lower• faire baisser la tension/le chômage to reduce tension/unemployment2. intransitive verba. [température, prix, baromètre, Bourse] to fall ; [pression] to drop ; [marée] to go out ; [eaux] to subside ; [réserves, provisions] to run low ; [popularité] to decline ; [soleil] to go downb. [vue, mémoire, forces, santé] to fail ; [talent] to wane3. reflexive verb* * *bese
1.
1) ( abaisser) to lower [volet, store]; to wind [something] down [vitre]; to pull down [pantalon, visière]; to turn down [col]baisser la tête — ( par précaution) to lower one's head; ( vivement) to duck one's head; (par soumission, de honte) to bow
baisser les bras — lit to lower one's arms; fig to give up
baisser le nez — fig to hang one's head
2) ( réduire) to turn down [son, volume]; to dim [lumière]; [autorité] to cut [prix, taux]; [circonstances] to bring down [prix, taux]
2.
verbe intransitif1) ( diminuer de niveau) gén to go down (à to; de by); ( brusquement) to fall, to drop; [lumière] to fade; [eaux] to subside; [qualité, criminalité] to declinebaisser d'un ton — (colloq) [personne] fig to calm down
2) ( diminuer de valeur) [prix, résultat, taux, production] to fall; [salaires, actions] to go down; [pouvoir d'achat, chômage, emplois] to decrease; [productivité, marché] to decline; [budget] to be cut; [monnaie] to slide3) ( diminuer de qualité) [vue] to fail; [ouïe, facultés] to deteriorate
3.
se baisser verbe pronominal [personne] (pour passer, saisir) to bend down; ( pour éviter) to duck; [levier] to go down* * *bese1. vt1) [vitre, manette, yeux] to lower2) [radio, chauffage] to turn downIl fait moins froid, tu peux baisser le chauffage. — It's not so cold, you can turn down the heating.
3) AUTOMOBILES, [phares] to dip Grande-Bretagne lower USA2. vi[température, niveau, taux] to fall, to dropLe prix des CD a baissé. — The price of CDs has fallen.
faire baisser [température, niveau, taux] — to bring down
* * *baisser verb table: aimerA vtr1 ( abaisser) [personne] to lower [volet, store]; to wind [sth] down [vitre]; to pull down [pantalon, culotte, visière]; to turn down [col]; les stores étaient baissés the blinds were down; baisser la tête ( par précaution) to lower one's head; ( vivement) to duck one's head; (par soumission, de honte) to bow; baisser les yeux (de honte) to look down (in shame); baisser les bras lit to lower one's arms; fig to give up; baisser le nez fig to hang one's head; je vais leur faire baisser le nez, à ces prétentieux! I'm going to bring them down a peg or two, those pretentious twits!;2 ( réduire) to turn down [son, volume]; to dim [lumière]; [autorité] to cut [prix, taux]; [circonstances] to bring down [prix, taux].B vi1 ( diminuer de niveau) [température, pression, tension] to fall, to drop, to go down (à to; de by); [fièvre, volume sonore] to go down; [lumière] to fade, to grow dim; [eaux] to subside; [qualité] to decline; [criminalité, délinquance] to decline, to be on the decline; [moral] to fall; [optimisme] to fade; le Rhône continue de baisser water levels in the Rhône are still dropping; le niveau des étudiants n'a pas baissé the standard of the students' work has not deteriorated; baisser dans l'estime de qn to go down in sb's esteem; baisser dans les sondages [candidat] to go down in the polls; le baromètre baisse the barometer is falling; le jour baisse the light is fading; baisser d'un ton○ [personne] fig to calm down;2 ( diminuer de valeur) [prix, résultat, taux, production, recettes] to fall; [salaires] to go down; [pouvoir d'achat] to decrease; [chômage, emplois] to fall, to decrease; [productivité] to decline; [actions, chiffre d'affaires] to go ou come down, to decrease; [budget] to be cut; [marché] to decline; [monnaie] to slide; les loyers vont baisser rents are going to go down; les prix/taux d'intérêt/salaires ont baissé de 2% prices/interest rates/salaries have come down by 2%; leur PNB a baissé de moitié their GNP has dropped by half; la productivité va baisser de 10% productivity will fall ou drop by 10%; la nouvelle de la guerre a fait baisser la Bourse news of the war caused prices on the Stock Exchange to fall ou drop;3 ( diminuer de qualité) [vue] to fail; [intelligence, ouïe, facultés] to deteriorate; ma vue baisse my sight is failing.C se baisser vpr [personne] (pour passer, saisir) to bend down; ( pour éviter) to duck; [levier, mécanisme] to go down; [rideau] Théât to drop; baisse-toi pour passer sous les barbelés bend down to get under the barbed wire; baissez-vous, ils tirent! duck, they're shooting at us![bese] verbe transitif[tableau] to lowerb. [boutique] the iron curtain's down2. [main, bras] to lowerbaisser les yeux ou paupières to lower one's eyes, to look down, to cast one's eyes downa. [de tristesse] to walk with downcast eyesb. [en cherchant] to walk with one's eyes to the groundbaisser son chapeau sur ses yeux to pull ou to tip one's hat over one's eyesattention, baisse la tête! look out, duck!a. [posture] with one's head down ou bentb. [de tristesse] head bowed (with sorrow)baisser un prix to bring down ou to lower ou to reduce a price————————[bese] verbe intransitif[espoir, lumière] to fade[marée] to go out[santé, faculté] to declinenos réserves de sucre ont baissé our sugar reserves have run low, we're low on sugarces mesures visent à faire baisser les prix du mètre carré these measures are intended to bring down the price per square metresa vue baisse his eyesight's fading ou getting weaker ou failing[réduire le prix]————————se baisser verbe pronominal intransitif1. [personne] to bend downil n'y a qu'à se baisser pour les prendre ou les ramasser they're two a penny (UK) ou a dime a dozen (US)2. [store, vitre] to go down7 démarrage direct
прямой пуск вращающегося электродвигателя
Пуск вращающегося электродвигателя путем непосредственного подключения его к питающей сети.
[ ГОСТ 27471-87]EN
direct-on-line starting
across-the-line starting (US)
the process of starting a motor by connecting it directly to the supply at rated voltage
[IEV number 411-52-15]FR
démarrage direct
mode de démarrage d'un moteur, consistant à lui appliquer directement sa pleine tension assignée
[IEV number 411-52-15]
Рис. ABB
Схема прямого пуска электродвигателяMagnetic only circuit-breaker - Автоматический выключатель с электромагнитным расцепителем
Contactor KL - Контактор KL
Thermal relay - Тепловое реле
Параллельные тексты EN-RU
Direct-on-line starting
Direct-on-line starting, which is often abbreviated as DOL, is perhaps the most traditional system and consists in connecting the motor directly to the supply network, thus carrying out starting at full voltage.Direct-on-line starting represents the simplest and the most economical system to start a squirrel-cage asynchronous motor and it is the most used.
As represented in Figure 5, it provides the direct connection to the supply network and therefore starting is carried out at full voltage and with constant frequency, developing a high starting torque with very reduced acceleration times.
The typical applications are relevant to small power motors also with full load starting.
These advantages are linked to some problems such as, for example, the high inrush current, which - in the first instants - can reach values of about 10 to 12 times the rated current, then can decrease to about 6 to 8 times the rated current and can persist to reach the maximum torque speed.The effects of such currents can be identified with the high electro-dynamical stresses on the motor connection cables and could affect also the windings of the motor itself; besides, the high inrush torques can cause violent accelerations which stress the transmission components (belts and joints) generating distribution problems with a reduction in the mechanical life of these elements.
Finally, also the possible electrical problems due to voltage drops on the supply line of the motor or of the connected equipment must be taken into consideration.
[ABB]Прямой пуск
Прямой пуск, который по-английски часто сокращенно обозначают как DOL, является, пожалуй наиболее распространенным способом пуска. Он заключается в непосредственном (т. е. прямом) подключении двигателя к питающей сети. Это означает, что пуск двигателя осуществляется при полном напряжении.Схема прямого пуска является наиболее простым, экономичным и чаще всего применяемым решением для электродвигателей с короткозамкнутым ротором.
Схема прямого подключения к сети представлена на рисунке 5. Пуск осуществляется при полном напряжении и постоянной частоте сети. Электродвигатель развивает высокий пусковой момент при коротком времени разгона.
Типичные области применения – маломощные электродвигатели, в том числе с пуском при полной нагрузке.
Однако, наряду с преимуществами имеются и определенные недостатки, например, бросок пускового тока, достигающий в первоначальный момент 10…12-кратного значения от номинального тока электродвигателя. Затем ток двигателя уменьшается примерно до 6…8-кратного значения номинального тока и будет держаться на этом уровне до тех пор, пока скорость двигателя не достигнет максимального значения.
Такое изменение тока оказывает значительное электродинамическое воздействие на кабель, подключенный к двигателю. Кроме того пусковой ток воздействует на обмотки двигателя. Высокий начальный пусковой момент может привести к значительному ускорению и следовательно к значительной нагрузке элементов привода (ремней, крепления узлов), что вызывает сокращение их срока службы.
И, наконец, следует принять во внимание возможное возникновение проблем, связанных с падением напряжения в линии питания двигателя и подключенного к этой линии оборудования.
[Перевод Интент]
Тематики
Синонимы
EN
- across-the-line starting (US)
- direct line starting
- direct operation of a motor
- direct starting
- direct-on-line starting
- DOL
- full voltage starter application
DE
FR
Франко-русский словарь нормативно-технической терминологии > démarrage direct
См. также в других словарях:
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