GB608962A - Improvements relating to the protection of electrical apparatus against transient over-voltage - Google Patents

Improvements relating to the protection of electrical apparatus against transient over-voltage

Info

Publication number
GB608962A
GB608962A GB2375345A GB2375345A GB608962A GB 608962 A GB608962 A GB 608962A GB 2375345 A GB2375345 A GB 2375345A GB 2375345 A GB2375345 A GB 2375345A GB 608962 A GB608962 A GB 608962A
Authority
GB
United Kingdom
Prior art keywords
insulator
conductor
gaps
intermediate electrodes
transient over
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
GB2375345A
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.)
HENRY STANLEY HOLBROOK
British Thomson Houston Co Ltd
Original Assignee
HENRY STANLEY HOLBROOK
British Thomson Houston Co 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 HENRY STANLEY HOLBROOK, British Thomson Houston Co Ltd filed Critical HENRY STANLEY HOLBROOK
Priority to GB2375345A priority Critical patent/GB608962A/en
Publication of GB608962A publication Critical patent/GB608962A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H01B17/46—Means for providing an external arc-discharge path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)

Abstract

608,962. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., and HOLBROOK, H. S. Sept. 14, 1945, No. 23753. [Class 38 (iv)] Transient over-voltage protection for apparatus connected to a conductor 2 carried by a bushing or other insulator 1 is provided by series-connected spark-gaps A, B, the intermediate electrodes 4, 5 of which are carried by the insulator and connected to a stress equalizing tapping on a resistance potential divider connected between the conductor 2 and earth 3 and which may be constituted by a semi-conducting glaze on the insulator. Under impulse conditions the stress distribution between the gaps is disturbed due to capacity between the intermediate electrodes and the conductor or earth, so that speedy breakdown of the gaps is ensured. This capacity may be increased by a metallized coating or metal collar 7 on the insulator and connected to the intermediate electrodes. In the case of a post-type insulator, the collar 7 may co-operate with a portion of the conductor 2 or earthed part 3 extending into a closed bore in the insulator.
GB2375345A 1945-09-14 1945-09-14 Improvements relating to the protection of electrical apparatus against transient over-voltage Expired GB608962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2375345A GB608962A (en) 1945-09-14 1945-09-14 Improvements relating to the protection of electrical apparatus against transient over-voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2375345A GB608962A (en) 1945-09-14 1945-09-14 Improvements relating to the protection of electrical apparatus against transient over-voltage

Publications (1)

Publication Number Publication Date
GB608962A true GB608962A (en) 1948-09-23

Family

ID=10200750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2375345A Expired GB608962A (en) 1945-09-14 1945-09-14 Improvements relating to the protection of electrical apparatus against transient over-voltage

Country Status (1)

Country Link
GB (1) GB608962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947903A (en) * 1958-01-17 1960-08-02 Hubbard & Co Current interrupting devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947903A (en) * 1958-01-17 1960-08-02 Hubbard & Co Current interrupting devices

Similar Documents

Publication Publication Date Title
ES219733A1 (en) Protective apparatus against high voltage discharges (Machine-translation by Google Translate, not legally binding)
GB608962A (en) Improvements relating to the protection of electrical apparatus against transient over-voltage
GB955224A (en) Spark plug
GB638903A (en) Improvements in and relating to excess voltage protective systems for electric windings
GB1085032A (en) Improvements in or relating to protective spark gap devices
GB1227266A (en)
GB553461A (en) Improvements in or relating to electric protective discharge devices
GB814838A (en) Lightning arrester
GB781378A (en) Improvements relating to electrical spark gap discharge apparatus
GB601543A (en) Improvements in electric surge-diverters and the like
GB570966A (en) Improvements in or relating to electric potential-dividing arrangements
GB648748A (en) Improvements in and relating to insulators
GB1105368A (en) Method of testing bar conductors and coils of high-voltage machines
GB861740A (en) Improvements relating to high voltage spark gap switches
GB521301A (en) Busbar protective system for open type switching and transforming stations
AU122759B2 (en) An improved lightning or electrical surge arrester
GB433329A (en) Improvements in or relating to protective devices for electric cables
ES41309U (en) Automatic multiple unloader, especially for protection of communication facilities (Machine-translation by Google Translate, not legally binding)
GB879835A (en) A surge diverter with destructible electrodes
AU1539144A (en) An improved lightning or electrical surge arrester
GB789831A (en) Improved swivelling connector for winch ropes incorporating insulated electric conductors
GB605794A (en) Improvements in and relating to high voltage electrical apparatus incorporating lightning arresters
GB563908A (en) Improvements in or relating to expulsion-type excess-voltage protective devices
GB540848A (en) Improvements in lightning arresters
GB877694A (en) Improvements relating to protective devices for electrical equipment