GB2002590A - Vacuum switch contacts - Google Patents

Vacuum switch contacts

Info

Publication number
GB2002590A
GB2002590A GB7831081A GB7831081A GB2002590A GB 2002590 A GB2002590 A GB 2002590A GB 7831081 A GB7831081 A GB 7831081A GB 7831081 A GB7831081 A GB 7831081A GB 2002590 A GB2002590 A GB 2002590A
Authority
GB
United Kingdom
Prior art keywords
vacuum switch
arms
switch contacts
straddled
arcing
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.)
Granted
Application number
GB7831081A
Other versions
GB2002590B (en
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.)
Central Electricity Generating Board
Original Assignee
Central Electricity Generating Board
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 Central Electricity Generating Board filed Critical Central Electricity Generating Board
Priority to GB7831081A priority Critical patent/GB2002590B/en
Publication of GB2002590A publication Critical patent/GB2002590A/en
Application granted granted Critical
Publication of GB2002590B publication Critical patent/GB2002590B/en
Expired 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
    • H01H33/6646—Contacts; Arc-extinguishing means, e.g. arcing rings having non flat disc-like contact surface

Abstract

A vacuum switch has two relatively rectilinearly movable contact members 40, 41 each of U-shape, at least one having a contacting portion 44 straddled by the arms 42 of the other. The terminals 43 are coaxial on the bases of the U's so that the current divides along the arms 42 and into the contacting portions 44 in a manner whereby the magnetic field assists in maintaining a diffuse mode of arcing up to high current values and undesirable space charge effects are reduced. <IMAGE>
GB7831081A 1977-04-25 1978-07-25 Vacuum switches Expired GB2002590B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7831081A GB2002590B (en) 1977-04-25 1978-07-25 Vacuum switches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1717877 1977-04-25
GB7831081A GB2002590B (en) 1977-04-25 1978-07-25 Vacuum switches

Publications (2)

Publication Number Publication Date
GB2002590A true GB2002590A (en) 1979-02-21
GB2002590B GB2002590B (en) 1982-01-06

Family

ID=26252528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831081A Expired GB2002590B (en) 1977-04-25 1978-07-25 Vacuum switches

Country Status (1)

Country Link
GB (1) GB2002590B (en)

Also Published As

Publication number Publication date
GB2002590B (en) 1982-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee