GB1225832A - - Google Patents

Info

Publication number
GB1225832A
GB1225832A GB1225832DA GB1225832A GB 1225832 A GB1225832 A GB 1225832A GB 1225832D A GB1225832D A GB 1225832DA GB 1225832 A GB1225832 A GB 1225832A
Authority
GB
United Kingdom
Prior art keywords
electrode
vacuum
configuration
gap
contact
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.)
Expired
Application number
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 filed Critical
Publication of GB1225832A publication Critical patent/GB1225832A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

1,225,832. Vacuum switches; spark gaps. GENERAL ELECTRIC CO. 25 April, 1968 [19 May, 1967], No. 19713/68. Headings H1D and H1N. A vacuum switch 40 or triggerable vacuum gap device 10, 80, eliminates anode spots by a configuration and positioning of the arc electrodes such that essentially no magnetic field exists within the interelectrode gap 26, 56, 97 or 98, the outer electrode 16, 42, 87 encompassing the inner electrode 17, 43, 81, which has a reentrant structure. The outer electrode 87 also has a re-entrant structure (see also Figs. 8-10, not shown), giving two inter-electrode gaps 97, 98, in this case. In the switch 40, a starter electrode 52 has a reciprocating contact-piece 54 establishing contact between arc electrodes 42, 43, the contact-piece being suitably shaped to fit the configuration of cylindrical member 45 of electrode 43 or being flat if a flat plate electrode is utilized in an alternative embodiment. The gap device 10 has a trigger device 23, comprising a second hydride film on a ceramic cylinder, and is connected in series or parallel with a load, the device 10 also being an alternative trigger device 27. Gap device 80 has trigger devices 100, 101, and (optionally) 102, 103, and is convertible to a vacuum switch by replacing these with reciprocable starter electrodes. The arc electrodes have circular symmetry as shown, or an elongated semi-cylindrical, partial-parallel configuration with rounded ends and planar centre portions, Figs. 3, 4 (not shown), or a rectangular cross-section, Fig. 5 (not shown), or an elliptical cross-section, Fig. 6 (not shown), or provide flat plate electrode symmetry, Figs. 8, 9 (not shown).
GB1225832D 1967-05-19 1968-04-25 Expired GB1225832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63969367A 1967-05-19 1967-05-19

Publications (1)

Publication Number Publication Date
GB1225832A true GB1225832A (en) 1971-03-24

Family

ID=24565175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225832D Expired GB1225832A (en) 1967-05-19 1968-04-25

Country Status (5)

Country Link
US (1) US3471733A (en)
JP (1) JPS497421B1 (en)
DE (1) DE1765430A1 (en)
FR (1) FR1564387A (en)
GB (1) GB1225832A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858076A (en) * 1973-05-11 1974-12-31 Gen Electric Vacuum-type circuit interrupter with interleaving spiral electrodes
US3949341A (en) * 1975-02-03 1976-04-06 Westinghouse Electric Corporation Power vacuum fuse using coaxial cylinders
US4386249A (en) * 1980-11-25 1983-05-31 Westinghouse Electric Corp. Vacuum circuit interrupter with auxiliary contact for plural arc path device with arc rotating means associated with the primary and auxiliary contacts
US4553002A (en) * 1983-12-05 1985-11-12 Westinghouse Electric Corp. Axial magnetic field vacuum-type circuit interrupter
US5126638A (en) * 1991-05-13 1992-06-30 Maxwell Laboratories, Inc. Coaxial pseudospark discharge switch
WO1993011591A1 (en) * 1991-11-29 1993-06-10 Sovmestnoe Sovetsko-Germanskoe Predpiyatie 'nova' Method and device for obtaining an electric discharge
US6037715A (en) * 1997-11-19 2000-03-14 Maxwell Technologies Systems Division, Inc. Spark switch having coaxial electrodes with increased electrode surface area exposure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356893A (en) * 1966-03-21 1967-12-05 Gen Electric High power vacuum discharge device having a pair of interleaved multivaned arcing electrodes
US3356894A (en) * 1966-10-14 1967-12-05 Gen Electric Multiple stage cascaded triggered vacuum gap devices

Also Published As

Publication number Publication date
US3471733A (en) 1969-10-07
FR1564387A (en) 1969-04-18
DE1765430A1 (en) 1971-07-29
JPS497421B1 (en) 1974-02-20

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed