-
41 collision ionization
English-Russian dictionary of telecommunications > collision ionization
-
42 atomic ionization
The English-Russian dictionary general scientific > atomic ionization
-
43 laser-induced ionization
The English-Russian dictionary general scientific > laser-induced ionization
-
44 laser-initiated ionization
The English-Russian dictionary general scientific > laser-initiated ionization
-
45 multiple ionization
The English-Russian dictionary general scientific > multiple ionization
-
46 radiation ionization
The English-Russian dictionary general scientific > radiation ionization
-
47 single ionization
The English-Russian dictionary general scientific > single ionization
-
48 volume collision ionization engine
Большой англо-русский и русско-английский словарь > volume collision ionization engine
-
49 volume collision ionization engine
ионный (электростатический) ракетный двигатель с объёмной ударной ионизациейАнгло-русский словарь технических терминов > volume collision ionization engine
-
50 resonant ionization in slow atom-Rydberg atom collision
Универсальный англо-русский словарь > resonant ionization in slow atom-Rydberg atom collision
-
51 volume collision ionization engine
Универсальный англо-русский словарь > volume collision ionization engine
-
52 ударная ионизация
ionization by collisionБольшой англо-русский и русско-английский словарь > ударная ионизация
-
53 ударная ионизация
Англо-русский словарь технических терминов > ударная ионизация
-
54 chamber
1) камера; отсек; отделение || помещать в камеру || камерный2) камера, полость3) комната4) мн. ч. англ. квартира•chamber behind retarder piston — авто запоршневое пространство замедлителя хода-
absorption chamber
-
accelerating chamber
-
acoustic chamber
-
aerotype float chamber
-
air chamber
-
air lock chamber
-
air working chamber
-
airborne haze chamber
-
air-mixing chamber
-
air-ventilation chamber
-
altitude chamber
-
altitude test chamber
-
altitude/temperature chamber
-
amalgamating chamber
-
anechoic chamber
-
aneroid chamber
-
annular combustion chamber
-
anode chamber
-
aspirating chamber
-
atomizing chamber
-
baffle chamber
-
baking chamber
-
bathtub combustion chamber
-
bean combustion chamber
-
blasting chamber
-
blending chamber
-
box-type combustion chamber
-
brake chamber
-
brake diaphragm chamber
-
brine chamber
-
bubble chamber
-
burn-in chamber
-
cable chamber
-
camera chamber
-
cannular combustion chamber
-
can-type combustion chamber
-
carbon-settling chamber
-
carburetor diffuser chamber
-
carburetor float chamber
-
carburetor suction chamber
-
cartridge chamber
-
catalyst chamber
-
cathode chamber
-
checker chamber
-
chromatographic chamber
-
clay chamber
-
climatic chamber
-
cloud chamber
-
coating chamber
-
coke chamber
-
cold storage chamber
-
collision chamber
-
combustion chamber
-
compensated ionization chamber
-
compression chamber
-
conditioning chamber
-
cooking chamber
-
cooling chamber
-
cracking chamber
-
crimping chamber
-
crusher chamber
-
cushion chamber
-
cyclone combustion chamber
-
decay chamber
-
deck decompression chamber
-
decompression chamber
-
decontamination chamber
-
deep freeze storage chamber
-
defrosting chamber
-
delivery chamber
-
deposition chamber
-
detritus chamber
-
developing chamber
-
diffusion cloud chamber
-
diffusion chamber
-
digestion chamber
-
discharge chamber
-
diversion chamber
-
divertor chamber
-
divided combustion chamber
-
diving chamber
-
drawing chamber
-
drill chamber
-
drip chamber
-
drying chamber
-
dust collection chamber
-
dust chamber
-
dust precipitation chamber
-
echo chamber
-
electrical dust precipitation chamber
-
electrochemical machining chamber
-
electrode chamber
-
electrostatic paint chamber
-
end fission chamber
-
enriched-uranium fission chamber
-
environmental chamber
-
environmental test chamber
-
evacuated chamber
-
evaporation chamber
-
exhaust chamber
-
expansion chamber
-
explosion chamber
-
exposure chamber
-
extinguishing chamber
-
fast ionization chamber
-
fast-neutron exposure chamber
-
filtration chamber
-
fission chamber
-
flash chamber
-
flat fission chamber
-
float chamber
-
float glass-forming chamber
-
flush chamber
-
foam chamber
-
foam-collecting chamber
-
foam-mixing chamber
-
fog chamber
-
freeze-drying chamber
-
freezing chamber
-
frozen products chamber
-
frying chamber
-
fuel injection chamber
-
fuel-changing chamber
-
fumigation chamber
-
furnace chamber
-
gamma-bucking ionization chamber
-
gamma-ionization chamber
-
gamma-ray chamber
-
gas discharge chamber
-
grit chamber
-
grouting chamber
-
heating chamber
-
hemispherical combustion chamber
-
humidifying chamber
-
hyperbaric chamber
-
influent chamber
-
inlet chamber
-
inspection chamber
-
intake chamber
-
ion production chamber
-
ionization chamber
-
ion chamber
-
irradiation chamber
-
jet chamber
-
ladle-degassing chamber
-
leak-detection chamber
-
lock chamber
-
low-pressure chamber
-
magma chamber
-
melting chamber
-
mixing chamber
-
moist chamber
-
multidiaphragm brake chamber
-
navigation chamber
-
neutron-detecting chamber
-
neutron-exposure chamber
-
nondivided combustion chamber
-
oil chamber
-
overflow chamber
-
piston retraction chamber
-
plenum chamber
-
plutonium fission chamber
-
polyspherical combustion chamber
-
pot chamber
-
power ionization chamber
-
precombustion chamber
-
precooling chamber
-
preheating chamber
-
preplasticizing chamber
-
pressure chamber
-
pressure test chamber
-
pretest chamber
-
primary drying chamber
-
priming chamber
-
processing chamber
-
process chamber
-
proof chamber
-
pull chamber
-
quenching chamber
-
radiation chamber
-
rapid temperature change chamber
-
reaction chamber
-
rebound chamber
-
reducing chamber
-
refrigeration chamber
-
regenerative chamber
-
resonance chamber
-
resonating chamber
-
reverberation chamber
-
reverse-flow combustion chamber
-
roasting chamber
-
rotary spool chamber
-
runner chamber
-
salt-fog chamber
-
sampler chamber
-
scintillation chamber
-
secondary drying chamber
-
sedimentation chamber
-
sediment chamber
-
separating chamber
-
settling chamber
-
shrink chamber
-
single combustion chamber
-
single-operating shrink chamber
-
skimming chamber
-
slag chamber
-
slow-neutron detecting chamber
-
slow-neutron exposure chamber
-
sludge chamber
-
sluice chamber
-
smelting chamber
-
smog chamber
-
smoke chamber
-
smoking chamber
-
soaking chamber
-
spherical combustion chamber
-
spinning chamber
-
spray chamber
-
spray cooling chamber
-
spray paint chamber
-
spring chamber
-
sputtering chamber
-
stagnation chamber
-
standing-off chamber
-
steam-curing chamber
-
still-water chamber
-
straight-through flow chamber
-
straight flow chamber
-
subfloor chamber
-
submersible decompression chamber
-
suction chamber
-
supply chamber
-
suppression chamber
-
surge chamber
-
swirl chamber
-
swirl combustion chamber
-
takeup chamber
-
target chamber
-
temperature cycling chamber
-
temperature chamber
-
test chamber
-
thermal shock chamber
-
thermal vacuum chamber
-
thermostatically controlled chamber
-
toroidal-cavity combustion chamber
-
track chamber
-
transfer chamber
-
triple diaphragm brake chamber
-
tubular combustion chamber
-
tuning chamber
-
turbulence combustion chamber
-
turbulent mixing chamber
-
uncompensated ionization chamber
-
vacuum chamber
-
vacuum test chamber
-
valve chamber
-
vapor chamber
-
vaporizing chamber
-
viewing chamber
-
vortex combustion chamber
-
washing chamber
-
wedge-shaped combustion chamber
-
welding chamber
-
wellhead chamber
-
Wilson cloud chamber
-
Wilson chamber
-
wind chamber
-
work chamber
-
working chamber -
55 rate
1) скорость; темп2) частота3) интенсивность (напр. отказов)4) доля; процент; вероятность; пропорция; коэффициент; относительная величина5) тариф; ставка || тарифицировать; устанавливать ставку6) номинальные или максимально допустимые значения параметров; паспортные данные || указывать номинальные или максимально допустимые значения параметров; приводить паспортные данные7) рейтинг || определять рейтинг; иметь рейтинг•- rate of convergence
- rate of decay
- rate of ionization decay
- rate of phase change
- absorbed dose rate
- acceptable failure rate
- accounting rate
- adaptive learning rate
- addressing rate
- aging rate
- angular rate
- arrival rate
- assessed failure rate
- automatic baud rate
- automatic bit rate
- available bit rate
- azimuth rate
- basic repetition rate
- bit rate
- bit-error rate
- block error rate
- burst rate
- calling rate
- capture rate
- channel sampling rate
- character error rate
- character-writing rate
- charging rate
- chip-error rate
- clock rate
- collision rate
- compression frame rate
- concealment rate
- constant bit rate
- constant-false-alarm rate
- counting rate
- CPU clock rate
- creep rate
- critical rate of rise of off-state voltage
- critical rate of rise of on-state current
- crossover rate
- cross-relaxation rate
- cursor blink rate
- cutoff rate
- damage rate
- data rate
- data signaling rate
- data signalling rate
- data transfer rate
- data transmission rate
- deexcitation rate
- defect rate
- degradation rate
- deposition rate
- detuning rate
- diffusion rate
- discharge rate
- dispensing rate
- display rate
- display request rate
- distance rate
- disturbance rejection rate
- dose rate
- downtime rate
- drift rate
- effective transfer rate
- electron-ionization rate
- element error rate
- elevation rate
- enhanced full rate
- entropy production rate
- erasing rate
- error rate
- etch rate
- etching rate
- evaporation rate
- excitation rate
- exposure rate
- exposure-dose rate
- external transfer rate
- extrapolated failure rate
- failure rate
- false-alarm rate
- field-repetition rate
- finishing rate
- flicker rate
- fluence rate
- flutter rate
- frame rate
- frequency-sweep rate
- functional throughput rate
- generation rate
- growth rate
- hazard rate
- high-repetition rate
- hit rate
- hole-electron generation rate
- hole-ionization rate
- horizontal-repetitionrate
- host bus clock rate
- impact-ionization rate
- induced-transition rate
- information rate
- initial failure rate
- injection rate
- instantaneous failure rate
- internal transfer rate
- interruption rate
- intervalley rate of transfer
- ionization rate
- ISA bus clock rate
- lapse rate
- learning rate
- line rate
- lobing rate
- loss-of-lock rate
- magnetization reversal rate
- mapping rate
- mean failure rate
- mechanical tuning rate
- message-transmission rate
- migration rate
- misclassification rate
- modulation rate
- multiplexed rate
- mutation rate
- nucleation rate
- Nyquist signaling rate
- Nyquist signalling rate
- observed failure rate
- oxidation rate
- paging rate
- PCI bus clock rate
- phase rate
- phase-roll rate
- priming rate
- pull rate
- pulling rate
- pulse rate
- pulse-recurrence rate
- pulse-repetition rate
- quenching rate
- quenching transfer rate
- radiative-recombination rate
- range rate
- raw rate
- read error rate
- reading rate
- recombination rate
- recording rate
- recurrence rate
- refresh rate
- regeneration rate
- repetition rate
- reset rate
- sampling rate
- scan rate
- secondary emission rate
- signaling rate
- signalling rate
- slew rate
- specific absorption rate
- spin-diffusion rate
- spontaneous-transition rate
- stirring rate
- stock removal rate
- stuffing rate
- supersonic rate
- surface-recombination rate
- survival rate
- sustained transfer rate
- switching rate
- syllabic rate
- T1 rate
- T-1 rate
- T1C rate
- T-1C rate
- T2 rate
- T-2 rate
- T3 rate
- T-3 rate
- T4 rate
- T-4 rate
- teach rate
- teaching rate
- throughput rate
- time rate of rise of off-state voltage
- tracking rate
- transition rate
- transfer rate
- transmission rate
- transport rate
- typematic rate
- update rate
- user data rate
- variable bit rate
- variable sampling rate
- vertical refresh rate
- VLB bus clock rate
- volume-recombination rate
- writing rate
- zone-travel rate -
56 rate
1) скорость; темп2) частота3) интенсивность (напр. отказов)4) доля; процент; вероятность; пропорция; коэффициент; относительная величина5) тариф; ставка || тарифицировать; устанавливать ставку6) номинальные или максимально допустимые значения параметров; паспортные данные || указывать номинальные или максимально допустимые значения параметров; приводить паспортные данные7) рейтинг || определять рейтинг; иметь рейтинг•- acceptable failure rate
- accounting rate
- adaptive learning rate
- addressing rate
- aging rate
- angular rate
- arrival rate
- assessed failure rate
- automatic baud rate
- automatic bit rate
- available bit rate
- azimuth rate
- basic repetition rate
- bit rate
- bit-error rate
- block error rate
- burst rate
- calling rate
- capture rate
- channel sampling rate
- character error rate
- character-writing rate
- charging rate
- chip-error rate
- clock rate
- collision rate
- compression frame rate
- concealment rate
- constant bit rate
- constant-false-alarm rate
- counting rate
- CPU clock rate
- creep rate
- critical rate of rise of off-state voltage
- critical rate of rise of on-state current
- crossover rate
- cross-relaxation rate
- cursor blink rate
- cutoff rate
- damage rate
- data rate
- data signaling rate
- data signalling rate
- data transfer rate
- data transmission rate
- deexcitation rate
- defect rate
- degradation rate
- deposition rate
- detuning rate
- diffusion rate
- discharge rate
- dispensing rate
- display rate
- display request rate
- distance rate
- disturbance rejection rate
- dose rate
- downtime rate
- drift rate
- effective transfer rate
- electron-ionization rate
- element error rate
- elevation rate
- enhanced full rate
- entropy production rate
- erasing rate
- error rate
- etch rate
- etching rate
- evaporation rate
- excitation rate
- exposure rate
- exposure-dose rate
- external transfer rate
- extrapolated failure rate
- failure rate
- false-alarm rate
- field-repetition rate
- finishing rate
- flicker rate
- fluence rate
- flutter rate
- frame rate
- frequency-sweep rate
- functional throughput rate
- generation rate
- growth rate
- hazard rate
- high-repetition rate
- hit rate
- hole-electron generation rate
- hole-ionization rate
- horizontal-repetition rate
- host bus clock rate
- impact-ionization rate
- induced-transition rate
- information rate
- initial failure rate
- injection rate
- instantaneous failure rate
- internal transfer rate
- interruption rate
- intervalley rate of transfer
- ionization rate
- ISA bus clock rate
- lapse rate
- learning rate
- line rate
- lobing rate
- loss-of-lock rate
- magnetization reversal rate
- mapping rate
- mean failure rate
- mechanical tuning rate
- message-transmission rate
- migration rate
- misclassification rate
- modulation rate
- multiplexed rate
- mutation rate
- nucleation rate
- Nyquist rate
- Nyquist signaling rate
- Nyquist signalling rate
- observed failure rate
- oxidation rate
- paging rate
- PCI bus clock rate
- phase rate
- phase-roll rate
- priming rate
- pull rate
- pulling rate
- pulse rate
- pulse-recurrence rate
- pulse-repetition rate
- quenching rate
- quenching transfer rate
- radiative-recombination rate
- range rate
- rate of closure
- rate of convergence
- rate of decay
- rate of ionization decay
- rate of phase change
- raw rate
- read error rate
- reading rate
- recombination rate
- recording rate
- recurrence rate
- refresh rate
- regeneration rate
- repetition rate
- reset rate
- sampling rate
- scan rate
- secondary emission rate
- signaling rate
- signalling rate
- slew rate
- specific absorption rate
- spin-diffusion rate
- spontaneous-transition rate
- stirring rate
- stock removal rate
- stuffing rate
- supersonic rate
- surface-recombination rate
- survival rate
- sustained transfer rate
- switching rate
- syllabic rate
- T1 rate
- T-1 rate
- T1C rate
- T-1C rate
- T2 rate
- T-2 rate
- T3 rate
- T-3 rate
- T4 rate
- T-4 rate
- teach rate
- teaching rate
- throughput rate
- time rate of rise of off-state voltage
- tracking rate
- transfer rate
- transition rate
- transmission rate
- transport rate
- typematic rate
- update rate
- user data rate
- variable bit rate
- variable sampling rate
- vertical refresh rate
- VLB bus clock rate
- volume-recombination rate
- writing rate
- zone-travel rateThe New English-Russian Dictionary of Radio-electronics > rate
-
57 engine
1) двигатель, мотор2) ж.-д. локомотив3) машина4) процессор•to run up the engine — опробовать двигатель ( на режимах работы);to unreverse the engine — выводить двигатель из режима реверса-
light bulb engine
-
accelerating engine
-
adiabatic engine
-
air breathing engine
-
air engine
-
air-cell engine
-
air-chamber engine
-
air-cooled engine
-
aircraft engine
-
air-feed jet engine
-
air-injection engine
-
airless-injection engine
-
alcohol engine
-
analytical engine
-
anchor engine
-
apogee engine
-
approach-correcting engine
-
arc jet engine
-
arrow engine
-
ascent engine
-
assisted takeoff engine
-
AV-1 engine
-
aviation engine
-
axial-flow gas turbine engine
-
bare engine
-
baseline engine
-
basic engine
-
beating engine
-
bipropellant engine
-
bismuth ion engine
-
bleaching engine
-
blowing engine
-
blown engine
-
booster engine
-
boxer engine
-
brake engine
-
Brayton engine
-
breaker engine
-
bypass engine
-
catalytic engine
-
centrifugal expansion engine
-
ceramic engine
-
coaxial MPD engine
-
cogging engine
-
cold-reaction engine
-
commercial engine
-
compression ignition engine
-
computing engine
-
constant 1 engine
-
conventional engine
-
crankcase compression engine
-
crest engine
-
cross-compound blowing engine
-
cross-mounted engine
-
cryogenic expansion engine
-
cryogenic rocket engine
-
dead engine
-
derated engine
-
descent engine
-
diesel engine
-
diesel-electric engine
-
difference engine
-
digital engine
-
direct-injection engine
-
displacement engine
-
docking engine
-
donkey engine
-
double-row engine
-
double-row radial engine
-
down-rated engine
-
drilling engine
-
dual-flow turbojet engine
-
dual-mode engine
-
duct-burning bypass engine
-
ducted-fan engine
-
electric arcjet engine
-
electron-bombardment engine
-
emergency propulsion engine
-
energy-cell diesel engine
-
erosion engine
-
expansion engine
-
external combustion engine
-
F-head engine
-
fire engine with extension ladder
-
fire engine
-
fixed head engine
-
flat engine
-
flat-head engine
-
fluorine-hydrogen engine
-
four-barrel engine
-
four-cycle engine
-
Gardner engine
-
gas discharge ionizator electrostatic engine
-
gas engine
-
gas turbine engine
-
gas-driven blowing engine
-
gas blowing engine
-
gasoline engine
-
graphics engine
-
heat engine
-
heavy equipment diesel engine
-
heavy-duty engine
-
high bypass ratio engine
-
high-compression engine
-
high-efficiency engine
-
high-I engine
-
horizontal engine
-
horizontally opposed engine
-
Horning engine
-
hump engine
-
hybrid air-breathing engine
-
hybrid-propellant engine
-
hydrogen-fueled engine
-
I-head engine
-
impact volume ionization ion engine
-
inboard engine
-
indirect-injection engine
-
individual cylinder head engine
-
industrial application engine
-
inference engine
-
inlet over exhaust engine
-
in-line engine
-
ionic engine
-
ion engine
-
jet engine
-
ladle-car engine
-
laser air-jet engine
-
laser-driven rocket engine
-
laser-heated rocket engine
-
laser-propulsion rocket engine
-
Lauson engine
-
L-head engine
-
lift engine
-
lift jet engine
-
light duty diesel engine
-
linear MPD engine
-
liquid air cycle engine
-
liquid petroleum gases engine
-
liquid-propellant engine
-
long-stroke engine
-
low bypass ratio engine
-
low-I engine
-
LOX/HC engine
-
LOX/LH engine
-
magnetogasdynamic engine
-
maneuvering engine
-
marine application engine
-
marine engine
-
mercury ion engine
-
mid-flight engine
-
model diesel engine
-
monkey engine
-
motored engine
-
multifuel engine
-
nacelle-mounted engine
-
naturally aspirated engine
-
nonturbo engine
-
oil engine
-
oil-electric engine
-
OMS engine
-
one-shaft engine
-
open-cylinder engine
-
opposed-piston engine
-
Otto engine
-
outboard engine
-
overhead valve engine
-
oversquare engine
-
pancake engine
-
petrol engine
-
Petter AV-I Diesel engine
-
Petter W-1 engine
-
photon engine
-
piston ported engine
-
plasmajet rocket engine
-
plasma rocket engine
-
podded engine
-
pollution-free engine
-
potassium ion engine
-
prechamber engine
-
propulsion engine
-
pulping engine
-
pulsejet engine
-
pusher engine
-
quench-car engine
-
racing engine
-
radial engine
-
radiation-heated rocket engine
-
radio-frequency ion engine
-
ram engine
-
ramjet engine
-
Rankine engine
-
RCS engine
-
reciprocating solar engine
-
rectenna-powered ion engine
-
remanufactured engine
-
restartable engine
-
rotary engine
-
rubidium ion engine
-
separation engine
-
shaft-turbine engine
-
shunting engine
-
single-shaft gas turbine engine
-
six-cylinder in-line engine
-
solar Brayton engine
-
solar engine
-
solar photon rocket engine
-
solar-heated gas engine
-
solar gas engine
-
solar-powered engine
-
spacer plate engine
-
special arrangement engine
-
square engine
-
starting engine
-
steam-driven blowing engine
-
steam blowing engine
-
steering engine
-
Stirling engine
-
stock engine
-
subsonic engine
-
supercharged engine
-
surface ionization engine
-
swirl-chamber diesel engine
-
switch engine
-
take-home engine
-
tee engine
-
test bed engine
-
T-head engine
-
thermal arc engine
-
thermoelectronic engine
-
three-flow turbojet engine
-
towing engine
-
trans-rear engine
-
transverse engine
-
traveling wave plasma engine
-
trimmer engine
-
tripropellant engine
-
truck engine
-
turbine engine
-
turbine expansion engine
-
turbocharged engine
-
turbo engine
-
turbofan engine
-
turbojet engine
-
turboprop engine
-
turboshaft engine
-
turbulence-chamber engine
-
twin rotor engine
-
two-rotor engine
-
two-shaft gas turbine engine
-
two-spool engine
-
unblown engine
-
undersquare engine
-
variable compression engine
-
variable cycle engine
-
variable cylinder engine
-
vehicular engine
-
V-engine
-
volume collision ionization engine
-
Wankel engine
-
warmed-up engine
-
washing engine
-
waste-heat recovery Stirling engine
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water-cooled engine
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windmilling engine
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wing engine
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W-type engine
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yard engine -
58 electric arc phenomenon
явление электрической дуги
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[Интент]Параллельные тексты EN-RU
Electric arc phenomenon
The electric arc is a phenomenon which takes place as a consequence of a discharge which occurs when the voltage between two points exceeds the insulating strength limit of the interposed gas; then, in the presence of suitable conditions, a plasma is generated which carries the electric current till the opening of the protective device on the supply side.
Gases, which are good insulating means under normal conditions, may become current conductors in consequence of a change in their chemical-physical properties due to a temperature rise or to other external factors.
To understand how an electrical arc originates, reference can be made to what happens when a circuit opens or closes.
During the opening phase of an electric circuit the contacts of the protective device start to separate thus offering to the current a gradually decreasing section; therefore the current meets growing resistance with a consequent rise in the temperature.
As soon as the contacts start to separate, the voltage applied to the circuit exceeds the dielectric strength of the air, causing its perforation through a discharge.
The high temperature causes the ionization of the surrounding air which keeps the current circulating in the form of electrical arc. Besides thermal ionization, there is also an electron emission from the cathode due to the thermionic effect; the ions formed in the gas due to the very high temperature are accelerated by the electric field, strike the cathode, release energy in the collision thus causing a localized heating which generates electron emission.
The electrical arc lasts till the voltage at its ends supplies the energy sufficient to compensate for the quantity of heat dissipated and to maintain the suitable conditions of temperature. If the arc is elongated and cooled, the conditions necessary for its maintenance lack and it extinguishes.
Analogously, an arc can originate also as a consequence of a short-circuit between phases. A short-circuit is a low impedance connection between two conductors at different voltages.
The conducting element which constitutes the low impedance connection (e.g. a metallic tool forgotten on the busbars inside the enclosure, a wrong wiring or a body of an animal entered inside the enclosure), subject to the difference of potential is passed through by a current of generally high value, depending on the characteristics of the circuit.
The flow of the high fault current causes the overheating of the cables or of the circuit busbars, up to the melting of the conductors of lower section; as soon as the conductor melts, analogous conditions to those present during the circuit opening arise. At that point an arc starts which lasts either till the protective devices intervene or till the conditions necessary for its stability subsist.
The electric arc is characterized by an intense ionization of the gaseous means, by reduced drops of the anodic and cathodic voltage (10 V and 40 V respectively), by high or very high current density in the middle of the column (of the order of 102-103 up to 107 A/cm2), by very high temperatures (thousands of °C) always in the middle of the current column and – in low voltage - by a distance between the ends variable from some microns to some centimeters.
[ABB]Явление электрической дуги
Электрическая дуга между двумя электродами в газе представляет собой физическое явление, возникающее в тот момент, когда напряжения между двумя электродами превышает значение электрической прочности изоляции данного газа.
При наличии подходящих условий образуется плазма, по которой протекает электрический ток. Ток будет протекать до тех пор, пока на стороне электропитания не сработает защитное устройство.
Газы, являющиеся хорошим изолятором, при нормальных условиях, могут стать проводником в результате изменения их физико-химических свойств, которые могут произойти вследствие увеличения температуры или в результате воздействия каких-либо иных внешних факторов.
Для того чтобы понять механизм возникновения электрической дуги, следует рассмотреть, что происходит при размыкании или замыкании электрической цепи.
При размыкании электрической цепи контакты защитного устройства начинают расходиться, в результате чего постепенно уменьшается сечение контактной поверхности, через которую протекает ток.
Сопротивление электрической цепи возрастает, что приводит к увеличению температуры.
Как только контакты начнут отходить один от другого, приложенное напряжение превысит электрическую прочность воздуха, что вызовет электрический пробой.
Высокая температура приведет к ионизации воздуха, которая обеспечит протекание электрического тока по проводнику, представляющему собой электрическую дугу. Кроме термической ионизации молекул воздуха происходит также эмиссия электронов с катода, вызванная термоэлектронным эффектом. Образующиеся под воздействием очень высокой температуры ионы ускоряются в электрическом поле и бомбардируют катод. Высвобождающаяся, в результате столкновения энергия, вызывает локальный нагрев, который, в свою очередь, приводит к эмиссии электронов.
Электрическая дуга длится до тех пор, пока напряжение на ее концах обеспечивает поступление энергии, достаточной для компенсации выделяющегося тепла и для сохранения условий поддержания высокой температуры. Если дуга вытягивается и охлаждается, то условия, необходимые для ее поддержания, исчезают и дуга гаснет.
Аналогичным образом возникает дуга в результате короткого замыкания электрической цепи. Короткое замыкание представляет собой низкоомное соединение двух проводников, находящихся под разными потенциалами.
Проводящий элемент с малым сопротивлением, например, металлический инструмент, забытый на шинах внутри комплектного устройства, ошибка в электромонтаже или тело животного, случайно попавшего в комплектное устройство, может соединить элементы, находящиеся под разными потенциалами, в результате чего через низкоомное соединение потечет электрический ток, значение которого определяется параметрами образовавшейся короткозамкнутой цепи.
Протекание большого тока короткого замыкания вызывает перегрев кабелей или шин, который может привести к расплавлению проводников с меньшим сечением. Как только проводник расплавится, возникает ситуация, аналогичная размыканию электрической цепи. Т. е. в момент размыкания возникает дуга, которая длится либо до срабатывания защитного устройства, либо до тех пор, пока существуют условия, обеспечивающие её стабильность.
Электрическая дуга характеризуется интенсивной ионизацией газов, что приводит к падению анодного и катодного напряжений (на 10 и 40 В соответственно), высокой или очень высокой плотностью тока в середине плазменного шнура (от 102-103 до 107 А/см2), очень высокой температурой (сотни градусов Цельсия) всегда в середине плазменного шнура и низкому падению напряжения при расстоянии между концами дуги от нескольких микрон до нескольких сантиметров.
[Перевод Интент]Тематики
- НКУ (шкафы, пульты,...)
EN
Англо-русский словарь нормативно-технической терминологии > electric arc phenomenon
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59 rate
3) частота4) расход5) норма || нормировать6) тариф || тарифицировать7) степень8) отношение; коэффициент10) оценка || оценивать11) определять; устанавливать; подсчитывать; рассчитывать (напр. мощность, несущую способность)•rates to consumers — тарифы на отпуск (напр. электроэнергии) потребителям-
absolute disintegrate rate
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absorbed dose rate
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acceptance rate
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accident rate
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adiabatic lapse rate
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advance rate
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aging rate
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allowable leak rate
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angular rate
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annual depletion rate
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application rate
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area rate
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arrival rate
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ascensional rate
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assessed failure rate
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attenuation rate
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autoconvective lapse rate
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base wage rate
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baud rate
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bearer rate
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beating rate
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bit rate
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bit-error rate
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bit-transfer rate
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block meter rate
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block-error rate
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boiling rate
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boil-up rate
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bonus rate
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break flow rate
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breeding rate
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burning rate
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calling rate
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capture rate
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carbonization rate
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cargo rate
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carrier-ionization rate
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casting rate
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catalyst circulation rate
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charging rate
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chipping rate
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chip rate
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chopping rate
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circulation rate
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class rate
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climb rate
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clock rate
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closed rate
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closure rate
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coke rate
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cold storage rates
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collision rate
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combustion rate
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completion rate
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concentration rate
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containment leak rate
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continuous rate
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controlled rate
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convective expansion rate
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conversion rate
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conveyance rate
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cooling rate
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core heat generation rate
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corrosion rate
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counting rate
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crack growth rate
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creep rate
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crosshead rate
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cure rate
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cutter wear rate
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daily consumptive use rate
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data-transfer rate
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data rate
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decay rate
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decompression rate
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deflection rate
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deionization rate
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delivery rate
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demand cost rate
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demand rate
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deposition rate
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descent rate
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development rate
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deviation rate
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differential rate
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differentiated electricity rates
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diffusion rate
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directional rate
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discharge rate
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disposal rate
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distance rate
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dither rate
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dosage rate
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downtime rate
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drainage rate
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drawing rate
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drift rate
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drilling rate
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droop rate
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dry adiabatic lapse rate
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electricity rate
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electric rate
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energy fluence rate
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energy release rate
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entropy production rate
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entropy rate
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erasing rate
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erosion rate
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error rate
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etching rate
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etch rate
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evacuation rate
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evaporating rate
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excitation rate
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exposure rate
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failure rate
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failure-per-mile rate
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false alarm rate
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fatal accident frequency rate
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fatality rate
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fault rate
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feed rate
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field germination rate
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field-repetition rate
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fieldwide rate of recovery
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film rate
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filtering rate
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finishing rate
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fire-propagation rate
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firing rate
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fission rate
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flat rate
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flexible rates
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flicker rate
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flooding rate
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flotation rate
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flour extraction rate
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flow rate
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flush production rate
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flutter rate
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forced outgage rate
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frame rate
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frame-repetition rate
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freezing rate
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freight rate
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freight-all-kinds rates
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frequency-sweep rate
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frequency-tuning rate
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fuel rate
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functional throughput rate
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gas leak rate
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gathering rate
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generation rate
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grinding rate
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growth rate
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gyro drift rate
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half-clock rate
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hardening rate
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heat absorption rate
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heat dissipation rate
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heat generation rate
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heat rate
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heat-flow rate
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heating rate
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heat-transfer rate
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hit rate
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image refresh rate
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impact wear rate
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in-commission rate
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infiltration rate
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information rate
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injection rate
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instantaneous failure rate
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intermittent rate
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ionization rate
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irrigation rate
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iso-wear rates
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job rates
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kerma rate
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keying rate
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lapse rate
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leakage rate
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linear wear rate
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line-of-sight rate
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line-repetition rate
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liquid efflux rate
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lubrication rate
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maintenance rate
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mass flow rate
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mass wear rate
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maximum efficiency rate
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maximum permissible rate
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maximum stepping rate
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medium rate
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melting rate
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melt-off rate
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metal-removal rate
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modulation rate
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moist-adiabatic lapse rate
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NC programmed feed rate
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negative flow rate
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nucleation rate
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Nyquist rate
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obturation rate
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off-peak power rate
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operating rate
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optimal feed rate
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outgassing rate
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output rate
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overall drilling rate
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oxidation rate
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paging rate
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peak power rate
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penetration rate
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percolation rate
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phase generation rate
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phase rate
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picture-taking rate
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pitch rate
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plastic strain rate
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positive flow rate
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potential rate of evaporation
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pouring rate
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power rate
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precipitation rate
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predetermined rate
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predicted failure rate
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priming rate
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printout rate
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print rate
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production decline rate
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production rate
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projection rate
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proper feed rate
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protection rate
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pull rate
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pulldown rate
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pulse-recurrence rate
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pulse rate
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radiation rate
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radioactive decay rate
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range rate
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rapid air cut feed rate
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rapid return rate
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rate of acceleration
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rate of angular motion
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rate of attack
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rate of blowing
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rate of braking
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rate of carbon drop
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rate of convergence
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rate of crack propagation
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rate of deformation
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rate of dilution
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rate of discharge
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rate of dive
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rate of energy input
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rate of exchange
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rate of exposure
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rate of fall
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rate of film movement
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rate of gain
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rate of hole deviation change
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rate of lancing
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rate of linkage
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rate of loading
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rate of opening
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rate of plant depreciation
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rate of pulse rise
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rate of rainfall
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rate of rise
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rate of roll
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rate of sedimentation
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rate of shear
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rate of slope
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rate of stirring
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rate of surface runoff
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rate or carbon oxidation
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reactivity insertion rate
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reading rate
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read rate
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recovery rate
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recycle rate
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reflood rate
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refresh rate
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refrigeration rate
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repetition rate
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reset rate
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residential rate
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respiration rate
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retail charter rate
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retail rate
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retention rate
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rigidity rate
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rolling rate
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runout rate
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sample rate
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saturated-adiabatic lapse rate
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saturation rate
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scrap generation rate
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scrap rate
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secondary creep rate
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sectorial rate
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self-discharge rate
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setting rate
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settled production rate
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settling rate
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signaling rate
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silicon pulling rate
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slew rate
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snowmelt inflow rate
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solidification rate
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sparking rate
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specific commodity rate
-
specific heat flow rate
-
specific rate of flow
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specific rate of sediment transport
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specific wear rate
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spreading rate of jet
-
spring rate
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squeeze rate
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standard rate
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starting rate
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steam rate
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stepping rate
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stock removal rate
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strain rate
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stress rate
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sub-Nyquist rate
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success rate
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superadiabatic lapse rate
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supply rate
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survival rate
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sweep rate
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taking rate
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tariff rate
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temperature lapse rate
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testing rate
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thermal transfer rate
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through rate
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throughput rate
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time rate of change
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time rate
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time-of-day electricity rate
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time-of-day rate
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tool-wear rate
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total mass rate
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tracking rate
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traffic flow rate
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transfer rate
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transmission rate
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transport rate
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turn rate
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turnover rate
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twenty-five ampere rate
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undetected error rate
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uniform quench rate
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unit rate
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unloading rate
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update rate
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vaporizing rate
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vitrification rate
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voidage rate
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voltage recovery rate
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volume erosion rate
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volume wear rate
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volumetric flow rate
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volumetric rate
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vulcanization rate
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water application rate
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water consumption rate
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water use rate
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wear rate
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weft insertion rate
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weight rate
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wheel removal rate
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wholesale charter rate
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wholesale rate
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withdrawal rate
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write writing rate
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write rate
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yawing rate
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yaw rate
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zero-crossing rate -
60 section
1) секция; отрезок; звено4) раздел (напр. книги) || разбивать на разделы5) срез || изготавливать срез ( для микроскопических исследований)•- absorption cross section
- acoustic cross section
- antenna section
- apparent cross section
- back-scattering cross section
- bend section
- bistatic cross section
- brass section
- bridged T-section
- broadside cross section
- building-out section
- capture cross section
- carrier-line section
- collision cross section
- conic section
- control section
- corner section
- Coulomb cross section
- cross section
- cruciform waveguide section
- data control section
- destructive collision cross section
- echoing cross section
- effective cross section
- effective waveguide section
- electron-capture cross section
- electron multiplier section
- end-fire radar cross section
- evanescent section
- filter section
- flexible section
- forward-scattering cross section
- half-wave section
- highpass T-section
- hole-capture cross section
- ionization cross section
- L-section
- lowpass T-section
- matching section
- measuring waveguide section
- molecular absorption cross section
- monostatic cross section
- normalized cross section
- phasing section
- pi-section
- quarter-wave section
- radar cross section
- radar scattering cross section
- recombination cross section
- restriction section
- rhythm section
- scattering cross section
- slotted section
- squeezable section
- squeeze section
- T-section
- taper section
- tapered section
- target cross section
- target reflectivity cross section
- transition section
- transverse section
- twin-T section
- waveguide section
- π-section
См. также в других словарях:
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