GB782902A - Improvements in lightning arresters for electric power lines - Google Patents

Improvements in lightning arresters for electric power lines

Info

Publication number
GB782902A
GB782902A GB2307054A GB2307054A GB782902A GB 782902 A GB782902 A GB 782902A GB 2307054 A GB2307054 A GB 2307054A GB 2307054 A GB2307054 A GB 2307054A GB 782902 A GB782902 A GB 782902A
Authority
GB
United Kingdom
Prior art keywords
wire
arrester
electric power
power lines
earth
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
GB2307054A
Inventor
Kurt Dannenburg
Ivor Evan Humphreys
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.)
E M P Electric Ltd
Original Assignee
E M P Electric 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 E M P Electric Ltd filed Critical E M P Electric Ltd
Priority to GB2307054A priority Critical patent/GB782902A/en
Publication of GB782902A publication Critical patent/GB782902A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Thermistors And Varistors (AREA)

Abstract

782,902. Fusible cut-outs. E.M.P. ELECTRIC, Ltd. June 29, 1955 [Aug. 9, 1954], No. 23070/54. Class 38 (1). [Also in Group XXXV] A device for isolating a lightning arrester for electric power lines, when an earth-fault current of prolonged duration passes through the arrester following a nearby lightning strike, comprises a length of wire 19 which is adapted to fuse under such conditions, whereupon an earth-lead E is ejected by means of spring 18. The fusible material is preferably a nickelchrome alloy, tungsten or molybdenum, where. by the wire is surge-resistant and, by virtue of its inverse time-current characteristic, is adapted to be graded to the line fuses so that the isolater does not respond unless there is danger of damage to the arrester or associated plant. The wire is at least partly surrounded by a ceramic tube 20 or ceramic beads which facilitate arcextinction under fault conditions.
GB2307054A 1954-08-09 1954-08-09 Improvements in lightning arresters for electric power lines Expired GB782902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2307054A GB782902A (en) 1954-08-09 1954-08-09 Improvements in lightning arresters for electric power lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2307054A GB782902A (en) 1954-08-09 1954-08-09 Improvements in lightning arresters for electric power lines

Publications (1)

Publication Number Publication Date
GB782902A true GB782902A (en) 1957-09-18

Family

ID=10189636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2307054A Expired GB782902A (en) 1954-08-09 1954-08-09 Improvements in lightning arresters for electric power lines

Country Status (1)

Country Link
GB (1) GB782902A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503414A (en) * 1983-06-20 1985-03-05 Sykes Huey P Current interrupting lightning arrester isolator
US11322934B2 (en) * 2016-09-13 2022-05-03 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503414A (en) * 1983-06-20 1985-03-05 Sykes Huey P Current interrupting lightning arrester isolator
US11322934B2 (en) * 2016-09-13 2022-05-03 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line
US11682899B2 (en) 2016-09-13 2023-06-20 Hitachi Energy Switzerland Ag Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line

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