GB730634A - Improvements in electric surge arresters - Google Patents

Improvements in electric surge arresters

Info

Publication number
GB730634A
GB730634A GB2453750A GB2453750A GB730634A GB 730634 A GB730634 A GB 730634A GB 2453750 A GB2453750 A GB 2453750A GB 2453750 A GB2453750 A GB 2453750A GB 730634 A GB730634 A GB 730634A
Authority
GB
United Kingdom
Prior art keywords
gap
housing
spark
discharge
current
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
GB2453750A
Inventor
Kurt Dannenberg
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 GB2453750A priority Critical patent/GB730634A/en
Publication of GB730634A publication Critical patent/GB730634A/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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors
    • 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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
    • H01T4/20—Arrangements for improving potential distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

730,634. Lightning arresters. E.M.P. ELECTRIC, Ltd. Nov. 23, 1951 [Oct. 7, 1950], No. 24537/50. Drawings to Specification. Class 38 (4). A lightning arrester for a high voltage power line comprises a spark-gap in series with one or more non-linear resistance elements contained in an insulating housing and so selected as regards their resistance characteristics that the followup current after a discharge does not exceed 5 amps. peak and is terminated at the next voltage zero, whilst during a discharge the resistance of the elements falls to such a value that the voltage resulting from the flow of discharge current lies well below the insulation level of the line. The spark-gap may be a rod or like open air-gap, and there may be also an additional quench gap, which is either located in the resistor housing, or in a separate housing. The rod gap may be divided into two sections, one of which is open and unenclosed, whilst the other is provided with a shunt resistor ring adapted to carry current upon break-down of the gaps and held in a housing separate from the resistor housing. Alternatively, the spark gap may comprise an enclosed gap unit housed in common with, or separately from, the resistance elements, the housing being so designed that external leakage current under normal working conditions is less than 0.1 milli-amp. Specifications 730,709 and 730,710 are referred to.
GB2453750A 1950-10-07 1950-10-07 Improvements in electric surge arresters Expired GB730634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2453750A GB730634A (en) 1950-10-07 1950-10-07 Improvements in electric surge arresters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2453750A GB730634A (en) 1950-10-07 1950-10-07 Improvements in electric surge arresters

Publications (1)

Publication Number Publication Date
GB730634A true GB730634A (en) 1955-05-25

Family

ID=10213201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2453750A Expired GB730634A (en) 1950-10-07 1950-10-07 Improvements in electric surge arresters

Country Status (1)

Country Link
GB (1) GB730634A (en)

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