JPS6463237A - Vacuum circuit breaker - Google Patents

Vacuum circuit breaker

Info

Publication number
JPS6463237A
JPS6463237A JP21982287A JP21982287A JPS6463237A JP S6463237 A JPS6463237 A JP S6463237A JP 21982287 A JP21982287 A JP 21982287A JP 21982287 A JP21982287 A JP 21982287A JP S6463237 A JPS6463237 A JP S6463237A
Authority
JP
Japan
Prior art keywords
electrodes
magnetic field
produced
current
arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21982287A
Other languages
Japanese (ja)
Inventor
Hideaki Toriie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP21982287A priority Critical patent/JPS6463237A/en
Publication of JPS6463237A publication Critical patent/JPS6463237A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

PURPOSE:To make an interaction between an arc to be produced between electrodes and a magnetic field made by an external circuit preventable even at the time of interrupting a large current by forming a tubular conductor longer than gap length with a hot superconductive material around the electrode so as to surround it. CONSTITUTION:When a current 1 flows, as in an arrow, into an external circuit of a vacuum circuit breaker, there is produced a magnetic field H in the vertical direction as shown in illustration. This magnetic field H cannot be entered in the inner part of a tubular conductor 12 due to a minus effect, and it is strained as in a broken line, therefore the magnetic field H to be produced by this current will not act on an arc produced between electrodes 6 and 8 even in the case where the current 1 flowing in the external circuit is large enough. Consequently, the arc is stably and uniformly distributed on each surface of these electrodes 6 and 8, and since the whole surface of each electrode is effectively utilizable, circuit breaking is made possible. And that since each local fusion and roughing of these electrodes 6 and 8 can be avoided, deterioration in voltage resisting capacity after interruption by electrostatic focusing is thus preventable. Accordingly, such a vacuum circuit breaker that is compact in size and interruptible can be secured.
JP21982287A 1987-09-02 1987-09-02 Vacuum circuit breaker Pending JPS6463237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21982287A JPS6463237A (en) 1987-09-02 1987-09-02 Vacuum circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21982287A JPS6463237A (en) 1987-09-02 1987-09-02 Vacuum circuit breaker

Publications (1)

Publication Number Publication Date
JPS6463237A true JPS6463237A (en) 1989-03-09

Family

ID=16741582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21982287A Pending JPS6463237A (en) 1987-09-02 1987-09-02 Vacuum circuit breaker

Country Status (1)

Country Link
JP (1) JPS6463237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006309944A (en) * 2005-04-26 2006-11-09 Hitachi Ltd Vacuum switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006309944A (en) * 2005-04-26 2006-11-09 Hitachi Ltd Vacuum switch

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