GB214946A - Improvements in electric protective devices - Google Patents

Improvements in electric protective devices

Info

Publication number
GB214946A
GB214946A GB30012/23A GB3001223A GB214946A GB 214946 A GB214946 A GB 214946A GB 30012/23 A GB30012/23 A GB 30012/23A GB 3001223 A GB3001223 A GB 3001223A GB 214946 A GB214946 A GB 214946A
Authority
GB
United Kingdom
Prior art keywords
electrodes
gaps
electric protective
electrically connected
protective devices
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
GB30012/23A
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.)
Schweiz Gluehlampenfabrik A G
Original Assignee
Schweiz Gluehlampenfabrik A G
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 Schweiz Gluehlampenfabrik A G filed Critical Schweiz Gluehlampenfabrik A G
Publication of GB214946A publication Critical patent/GB214946A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00Overvoltage arresters using spark gaps
    • H01T4/10Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/12Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed

Landscapes

  • Electronic Switches (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

214,946. Schweiz Gl³hlampenfabrik Akt.-Ges. April 24, 1923, [Convention date]. Addition to 209,050. Protective arrangements.- In an electric protective arrangement, having electrodes of the kind described in the parent Specification, the electrically connected electrodes d<1>, d<2> are mounted in a glass foot e<1> and the electrically connected electrodes g<1>, g<2>, g<3> are mounted in a glass foot e<2>. The small variations in the quality of the electrodes, and the slight variations in the gaps between them are sufficient to cause the resistance of the various gaps to vary to a small extent and thus four gaps are provided which come into operation successively when a previous gap becomes faulty.
GB30012/23A 1923-04-24 1923-11-29 Improvements in electric protective devices Expired GB214946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH214946X 1923-04-24

Publications (1)

Publication Number Publication Date
GB214946A true GB214946A (en) 1924-08-14

Family

ID=4448914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30012/23A Expired GB214946A (en) 1923-04-24 1923-11-29 Improvements in electric protective devices

Country Status (1)

Country Link
GB (1) GB214946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960632A (en) * 1955-09-01 1960-11-15 Vickers Electrical Co Ltd Electrical spark-over protective devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960632A (en) * 1955-09-01 1960-11-15 Vickers Electrical Co Ltd Electrical spark-over protective devices

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