GB540848A - Improvements in lightning arresters - Google Patents

Improvements in lightning arresters

Info

Publication number
GB540848A
GB540848A GB13051/40A GB1305140A GB540848A GB 540848 A GB540848 A GB 540848A GB 13051/40 A GB13051/40 A GB 13051/40A GB 1305140 A GB1305140 A GB 1305140A GB 540848 A GB540848 A GB 540848A
Authority
GB
United Kingdom
Prior art keywords
electrodes
resistance
tube
aug
arc
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
GB13051/40A
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.)
British Thomson Houston Co Ltd
Original Assignee
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB540848A publication Critical patent/GB540848A/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
    • H01T1/02—Means for extinguishing arc
    • H01T1/08—Means for extinguishing arc using flow of arc-extinguishing fluid
    • H01T1/10—Means for extinguishing arc using flow of arc-extinguishing fluid with extinguishing fluid evolved from solid material by heat of arc

Landscapes

  • Thermistors And Varistors (AREA)

Abstract

540,848. Lightning arresters. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 15, 1940, No. 13051. Convention date, Aug. 18, 1939. Drawings to Specification. [Class 38 (iv)] In a lightning arrester, for high tension lines, of the arc expulsion type consisting of two electrodes extending towards one another within an insulating tube so as to leave an arc gap shorter than the distance between the electrodes one of the electrodes being located near the HT line and the other earthed, the voltage of the line electrode in normal working is reduced, to eliminate corona within the tube, by shunting the gap with a high resistance. This resistance is constituted by a sizing coating on the exterior of the tube consisting of a varnish and finely divided semi-conducting material such as carbon black, graphite, tin oxide or silicon. Carbide distributed in it, so that its resistance is of the order of one megohm per inch length between the electrodes.
GB13051/40A 1939-08-18 1940-08-15 Improvements in lightning arresters Expired GB540848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540848XA 1939-08-18 1939-08-18

Publications (1)

Publication Number Publication Date
GB540848A true GB540848A (en) 1941-10-31

Family

ID=21988706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13051/40A Expired GB540848A (en) 1939-08-18 1940-08-15 Improvements in lightning arresters

Country Status (1)

Country Link
GB (1) GB540848A (en)

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