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单词 circuit breaker
释义
circuit breaker
noun[C]
(alsocircuit-breaker)
uk
/ˈsɜː.kɪt ˌbreɪ.kər/us
/ˈsɝː.kɪt ˌbreɪ.kɚ/

circuit breakernoun[C](ELECTRICAL)

asafetydevicethatstopstheflowofcurrentin anelectricalcircuitwhen there is afault:
（电流）断路器
There was alossofpowerafter astronggustofwindtrippedacircuitbreaker.
Compare
fusenoun(SAFETY PART)
picture of circuit breaker
AlexLMX/iStock/Getty Images Plus/GettyImages
More examples
  • You always have to have acircuitbreakerso you candisablethesystemif there is someproblem.
  • Using a circuit-breaker with anelectricmoweris a very goodidea.
  • Under nocircumstancesshould theflightcrewreactivatethe circuit-breaker after it hastripped.
SMART Vocabulary: related words and phrases
Electrical components & circuitry
  • armature
  • baseband chip
  • cathode
  • cathode ray
  • charging point
  • circuit diagram
  • circuitry
  • electromotive
  • filament
  • LED display
  • neutral
  • parallel
  • potentiometer
  • recharger
  • rectifier
  • relay
  • short circuit
  • storage battery
  • supercapacitor
  • transformer
See more results »

circuit breakernoun[C](INTERRUPTION)

something thatinterruptsaseriesofevents, usuallyintentionallybecause they aredevelopingin aharmfulway:
Circuitbreakershalttradingon the nation'sstockmarketsduringdramaticdrops.
For the last twoyears, theDemocraticSenatemajorityhadprovideda circuit-breaker for theHouseSpeaker'sconservativeinitiatives.
mainlyUK
afixedperiodoftimein whichpeopleare notallowedtoleavetheirhomesortravelfreely, inordertotryandstopthespreadof adangerousdisease:
Theleaderof theoppositioncalled for a two-weekcircuitbreakertoarrestthespikein thepandemic.
More examples
  • Abankholidaycouldworkas acircuitbreakertocalmthemarketdown.
  • If the newspaper'sagendawas to getridof the Prime Minister, they havefailedbadly: therevelationshave been acircuitbreakerandlethim off thehook.
  • Thewholepointof the shell-companysystemis toactas a circuit-breaker, so that thechainofownershipgoesdead.
  • Asharpchangeto thevalueof acurrencywouldactas a circuit-breaker andrendertradingin thatcurrencyunprofitable.
SMART Vocabulary: related words and phrases
Cancelling and interrupting
  • adjourn
  • adjourn tosomewhere
  • arrest
  • break
  • callsomeone/somethingoff
  • cancellable
  • cut
  • diversion
  • halt
  • in midstreamidiom
  • kick
  • kicksomethinginto touchidiom
  • rain
  • scratch
  • shut
  • shut(something)off
  • stop
  • Zoom bomb
  • Zoombomber
  • Zoombombing
See more results »

You can also find related words, phrases, and synonyms in the topics:

Passing on illness & causing disease
(Definition ofcircuit breakerfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
Examples from literature
  • A circuit breaker popped, and red lights blazed all over the instrument panel.
  • When the time came to activate the device, two fraternity members had merely to flip a circuit breaker and push a plug into an outlet.
circuit breaker
noun[C]
uk
/ˈsɜː.kɪt ˌbreɪ.kər/us
/ˈsɝː.kɪt ˌbreɪ.kɚ/
asafetydevicethatstopstheflowofcurrentin anelectricalcircuitwhen there is afault
（电流）断路器
Compare
fusenoun(SAFETY PART)

circuit breaker| American Dictionary

circuit breaker
noun[C]
us
/ˈsɜr·kət ˌbreɪ·kər/
asafetydevicethatstopstheflowofcurrentto anelectricalsystem:
Icutoff all the circuit breakers in thehouse, but I could stillhearahummingsound.
(Definition ofcircuit breakerfrom theCambridge Academic Content Dictionary© Cambridge University Press)

circuit breaker| Business English

circuit breaker
noun[C]
uk
us
apieceofequipmentthatstopstheflowof anelectriccurrent, used topreventdamageto thewiresandequipmentthat areconnectedto it:
Ifyourinternetaccessis out, it could be that acircuitbreakerwastrippedduring astorm.
STOCK MARKET
arulethattemporarilystopstradeon astockmarketorclosesit whenpricesgo down to aparticularleveltooquickly:
The New York Stock Exchangeinstitutedcircuitbreakerstoreducevolatilityandpromoteinvestorconfidence.
There are three circuit-breaker thresholds—10%, 20%, and 30%—calculatedat thebeginningof eachquarter.
(Definition ofcircuit breakerfrom theCambridge Business English Dictionary© Cambridge University Press)

Examplesofcircuit breaker

circuit breaker
Checking the internal behavior of acircuitbreakerimplies the use of expertise that is independent of any expertise about the internal behavior of a protective relay.
From theCambridge English Corpus
The normal fuse of the minaturecircuitbreakerdetects a short circuit and immedately trips out.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
He went out to the compound and climbed on to acircuitbreakerinto which 30,000 volts were flowing.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
If one tried to protect the ring main circuit with a residualcircuitbreaker, the slightest leak on the total circuit would trip the whole of the ring main.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
This allows delicate electronics equipment to be connected to an independentcircuitbreaker, usually including a surge protector or an uninterruptible power supply backup.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
This consists of a single pantograph, a potential divider, a vacuumcircuitbreaker, a surge diverter and the main transformers high voltage terminal.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The autotransformer is connected to the bus bars by an additionalcircuitbreaker.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The charging station socket is dead if no vehicle is present; the pilot pin in the plug on the charger side controls thecircuitbreaker.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
He developed a high voltage ignition system for the motor withcircuitbreaker.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Acircuitbreakercontains an element that heats, bends and triggers a spring which shuts the circuit down.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
For instance, during a storm if a tree falls on a line, the system shuts itself down, similar to acircuitbreaker.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Thecircuitbreakercontacts are held closed by a latch.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
An earth leakagecircuitbreakerincludes a specialized latching relay.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
He had many inventions including thecircuitbreakerand the coin return.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The blow-out of the arc is made as in a puffercircuitbreakerthanks to the compression of the gas obtained by the piston action.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/circuit-breaker##
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更新时间：2025/2/10 21:56:15