GB430017A - Improvements in protecting means for electric supply mains - Google Patents

Improvements in protecting means for electric supply mains

Info

Publication number
GB430017A
GB430017A GB34559/33A GB3455933A GB430017A GB 430017 A GB430017 A GB 430017A GB 34559/33 A GB34559/33 A GB 34559/33A GB 3455933 A GB3455933 A GB 3455933A GB 430017 A GB430017 A GB 430017A
Authority
GB
United Kingdom
Prior art keywords
conductors
line
surge
transmission line
diverter
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
GB34559/33A
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of GB430017A publication Critical patent/GB430017A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
    • H02H9/007—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions avoiding or damping oscillations, e.g. fenoresonance or travelling waves

Landscapes

  • Thermistors And Varistors (AREA)

Abstract

430,017. Protective arrangements. ETABLISSEMENTS MERLIN & GERIN SOC. ANON., Rue de Monestier-de Clermont, Grenoble, IsÛre, France. Dec. 8, 1933, No. 34559. Convention date, Dec. 9, 1932. [Class 38 (iv)] A device for protecting transmission lines and apparatus connected thereto against steep fronted voltage surges comprises a plurality of conductors each connected to the line at one end and insulated from earth at the other. A large part of the surge is diverted from the transmission line by these conductors and divides among the conductors which, having different characteristics, cause the divided parts of the diverted surge to return to the line in succession after reflection at the ends of the conductors. The surge impedance of the arrangement of conductors is smaller than that of the main transmission line which may have an impedance arranged in series on the live side of the diverter when the transmission line is connected to a transformer or machine to be protected. Inductance coils may be connected in series with the line on both sides of the diverter which may be combined with a lightning arrester. The conductors may comprise coils 1, which may be made of magnetic material such as iron wire, wound on insulating cylinders 5 which may be of resin treated paper or impregnated cardboard and each of which has a metal lining 6 to which the lower ends of the corresponding coil is connected. The coil assembly is carried on metal base 3 supported by insulators 4 and is enclosed by an insulating casing 2, connection being made to the line through terminal 10, cap 9 and collar 8. According to the Specification as open to inspection under Sect. 91 the combination of the apparatus with a lightning arrester is effected by connecting all the free ends of the branch conductors to one side of a spark gap the other side of which is connected to earth through a resistance. This subjectmatter does not appear in the Specification as accepted.
GB34559/33A 1932-12-09 1933-12-08 Improvements in protecting means for electric supply mains Expired GB430017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR430017X 1932-12-09

Publications (1)

Publication Number Publication Date
GB430017A true GB430017A (en) 1935-06-11

Family

ID=8899239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34559/33A Expired GB430017A (en) 1932-12-09 1933-12-08 Improvements in protecting means for electric supply mains

Country Status (1)

Country Link
GB (1) GB430017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840900C2 (en) * 1978-09-18 1985-03-14 Siemens AG, 1000 Berlin und 8000 München Protection device against overvoltages for gas-insulated high-voltage lines with metal encapsulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2840900C2 (en) * 1978-09-18 1985-03-14 Siemens AG, 1000 Berlin und 8000 München Protection device against overvoltages for gas-insulated high-voltage lines with metal encapsulation

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