JPS57148829A - Vacuum breaker - Google Patents

Vacuum breaker

Info

Publication number
JPS57148829A
JPS57148829A JP3396881A JP3396881A JPS57148829A JP S57148829 A JPS57148829 A JP S57148829A JP 3396881 A JP3396881 A JP 3396881A JP 3396881 A JP3396881 A JP 3396881A JP S57148829 A JPS57148829 A JP S57148829A
Authority
JP
Japan
Prior art keywords
vacuum breaker
breaker
vacuum
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
JP3396881A
Other languages
Japanese (ja)
Inventor
Yukio Kurosawa
Akira Wada
Kiyoji Iwashita
Nobuo Abe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3396881A priority Critical patent/JPS57148829A/en
Publication of JPS57148829A publication Critical patent/JPS57148829A/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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66292—Details relating to the use of multiple screens in vacuum switches

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
JP3396881A 1981-03-11 1981-03-11 Vacuum breaker Pending JPS57148829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3396881A JPS57148829A (en) 1981-03-11 1981-03-11 Vacuum breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3396881A JPS57148829A (en) 1981-03-11 1981-03-11 Vacuum breaker

Publications (1)

Publication Number Publication Date
JPS57148829A true JPS57148829A (en) 1982-09-14

Family

ID=12401284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3396881A Pending JPS57148829A (en) 1981-03-11 1981-03-11 Vacuum breaker

Country Status (1)

Country Link
JP (1) JPS57148829A (en)

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