GB964999A - Improvements in or relating to voltage arrestor circuits - Google Patents

Improvements in or relating to voltage arrestor circuits

Info

Publication number
GB964999A
GB964999A GB3527561A GB3527561A GB964999A GB 964999 A GB964999 A GB 964999A GB 3527561 A GB3527561 A GB 3527561A GB 3527561 A GB3527561 A GB 3527561A GB 964999 A GB964999 A GB 964999A
Authority
GB
United Kingdom
Prior art keywords
relay
contact set
armature
close
magnetic
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
GB3527561A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB964999A publication Critical patent/GB964999A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/24—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for spark-gap arresters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Electromagnets (AREA)

Abstract

964,999. Thermal partly magnetic switches; protective arrangements. SIEMENS & HALSKE A.G. Sept. 29, 1961 [Sept. 30, 1960], No. 35275/61. Headings H2B and H2H. A telephone line FL is connected to earth through a thermo -magnetic relay R and a spark gap voltage arrestor FS. On overload the relay causes contact set r1 to close, short-circuiting the relay and the spark gap, and contact set r2 to close, sounding an alarm bell W. The relay comprises a permanent magnet Da which maintains a balanced armature A<SP>1</SP> in engagement with pole shoes P3, P4. These pole shoes are formed as serially connected non-inductive windings St, St<SP>1</SP> which are made of a substance whose permeability decreases with increasing temperature. On overload, current flows through the windings St, St<SP>1</SP>, causing a decrease in their permeability and allowing contact set r to close under the action of a spring. The relay is maintained in the operated position by the flux flowing through the polepieces P1, P2 and the armature. A relay having an unbalanced armature co-operating with one pole shoe which is in the form of a thermo-magnetic non-inductive winding is described, Fig. 2 (not shown).
GB3527561A 1960-09-30 1961-09-29 Improvements in or relating to voltage arrestor circuits Expired GB964999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES70712A DE1121189B (en) 1960-09-30 1960-09-30 Short-circuit and / or monitoring switches for protecting voltage arresters, preferably designed as spark gaps

Publications (1)

Publication Number Publication Date
GB964999A true GB964999A (en) 1964-07-29

Family

ID=7501971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3527561A Expired GB964999A (en) 1960-09-30 1961-09-29 Improvements in or relating to voltage arrestor circuits

Country Status (4)

Country Link
BE (1) BE608598A (en)
CH (1) CH393500A (en)
DE (1) DE1121189B (en)
GB (1) GB964999A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139435A (en) * 1983-05-02 1984-11-07 Int Standard Electric Corp Surge protector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139435A (en) * 1983-05-02 1984-11-07 Int Standard Electric Corp Surge protector

Also Published As

Publication number Publication date
BE608598A (en) 1962-01-15
DE1121189B (en) 1962-01-04
CH393500A (en) 1965-06-15

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