EP0236257B1 - Installation haute tension à blindage métallique isolée au gaz, muni d'un parafoudre - Google Patents

Installation haute tension à blindage métallique isolée au gaz, muni d'un parafoudre Download PDF

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Publication number
EP0236257B1
EP0236257B1 EP87730011A EP87730011A EP0236257B1 EP 0236257 B1 EP0236257 B1 EP 0236257B1 EP 87730011 A EP87730011 A EP 87730011A EP 87730011 A EP87730011 A EP 87730011A EP 0236257 B1 EP0236257 B1 EP 0236257B1
Authority
EP
European Patent Office
Prior art keywords
gas
metal
bushing
voltage installation
insulated high
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
EP87730011A
Other languages
German (de)
English (en)
Other versions
EP0236257A1 (fr
Inventor
Johannes Kirch
Egon Dipl.-Ing Zemann
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0236257A1 publication Critical patent/EP0236257A1/fr
Application granted granted Critical
Publication of EP0236257B1 publication Critical patent/EP0236257B1/fr
Expired legal-status Critical Current

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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
    • 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
    • H01T1/15—Details of spark gaps for protection against excessive pressure
    • 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
    • H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0068—Trimming and removing web edges

Definitions

  • the invention relates to a metal-encapsulated, gas-insulated high-voltage system with a surge arrester, which is also housed in a gas-filled, separate encapsulation connected to the encapsulation of the high-voltage system by means of a gas-tight bushing and has means which, after its response, the arc from its housing into the Blow out the encapsulation.
  • the separate encapsulation is either filled with air or with a gas that is favorable for the operation of the surge arrester, but it can also be filled with the same gas that is provided for the insulation of the entire system, in particular SF " .
  • the surge arrester has the usual structure and consists of spark gaps and voltage-dependent resistors or metal oxide resistors without spark gaps, and is also provided with means which, when overloaded, allow the arc to emerge from its housing so that the arc is then encapsulated between the surge arrester and the encapsulation wall Normally, the current load is relatively small when the surge arrester triggers overvoltages stress arresters with high dynamic forces and can damage or destroy the surge arrester and possibly lead to it.
  • the invention has for its object to design the branch of the high-voltage system with the surge arrester so that the dynamic stress is controlled in the event of an arcing fault with high short-circuit currents in the surge arrester and the branch.
  • a metal-encapsulated, gas-insulated high-voltage system with a surge arrester of the type described at the outset is designed in accordance with the invention in such a way that two electrode-shaped supporting bodies with facing, rounded surfaces are provided between the bushing and the surge arrester, between which a flexible current band is arranged, the cross section of which is dimensioned such that the current band melts at currents with the current intensity which is necessary for blowing out the arc from the arrester housing.
  • this support body adjacent to the bushing is designed to be fire-resistant, ie. H. either equipped with sufficiently thick walls or made of a fire-resistant material. It will also be advantageous to choose a larger surface area for the support body adjacent to the bushing than that of the support body located on the surge arrester. This gives enough possibility for the migration of the arc base on this support body.
  • the flexible current band can be attached to the support bodies in a suitable manner, for. B. by screwing.
  • a suitable manner for. B. by screwing.
  • the flexible current band melts and then the spiral spring is compressed by the current forces and jumps out of its holder, so that the connection between the support bodies is interrupted.
  • the pipe conductor 1 of a metal-encapsulated, with SF ⁇ compressed gas-insulated high-voltage line between the power plant generator and transformer is kept at a distance from the encapsulation 3 by insulators.
  • a branch 4 is provided, which leads to a pressure-tight and gas-tight bushing 5, which leads to a separate encapsulation 6, in which a surge arrester 7 is located.
  • the surge arrester 7 has a housing 9 made of insulating material, for. B. porcelain or plastic, in which there are spark gaps and voltage-dependent resistors or only voltage-dependent resistors.
  • special means 11 are provided on the upper and lower flange 10 of the surge arrester 7, which allow the arcing to be blown out after the surge arrester 7 is overloaded, so that the latter then burns in the encapsulation 6, its being above rer footpoint on the wall of the encapsulation 6 passes.
  • connection between the bushing 5 and the surge arrester 7 there are two electrode-shaped support bodies 12, 13 which are connected to one another by a flexible current band 14.
  • the supporting bodies 12 and 13 have rounded surfaces 15 facing one another so that they do not adversely affect the electric field.
  • the diameter of the support body 12 adjacent to the bushing 5 is larger than that of the other, and accordingly the surface 15 is also larger.
  • the flexible current band 14 consists of bands or strands made of copper and is screwed onto the surfaces 15 of the support bodies 12, 13.
  • the cross section of the flexible current band 14 is dimensioned such that the current band 14 melts at currents with the same current strength as is necessary for blowing out the arc.
  • the lower base point of the arc remains on the support body 12 adjacent to the bushing 5. Its large surface 15 provides sufficient space for the base point of the arcing arc to migrate. So that the support body 12 is not damaged too much when the arcing fault arises within the encapsulation 6, it is also designed to be fire-resistant.
  • FIG. 2 shows a somewhat modified design of the connection between the two support bodies 12 and 13. These are each provided on their surfaces 15 with a recess 16 into which a spiral spring 17 made of steel is inserted.
  • This spiral spring 17 carries the flexible current band 14. The longitudinal axis of this spiral spring runs perpendicular to the surfaces 15 of the two supporting bodies 12 and 13.

Landscapes

  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (4)

1. Installation haute tension à blindage métallique et à isolation par un gaz, avec un parafoudre (7) qui est aussi logé dans un blindage distinct (6) à remplissage par un gaz et relié au blindage (3) de l'installation haute tension par l'intermédiaire d'une traversée étanche (5), et comportant des moyens (11) qui, à l'apparition d'un arc électrique dans le boîtier (9), se déclenchent après la réponse du parafoudre (7), pour une pression gazeuse déterminée, et soufflent l'arc électrique hors du boîtier (9) pour le faire pénétrer dans le blindage distinct (6), caractérisée par le fait qu'entre la traversée (5) et le parafoudre (7) sont prévus deux corps de support (12, 13) en forme d'électrodes et à surfaces arrondies (15) situées l'une en face de l'autre, alors qu'un ruban électriquement conducteur et flexible (12) est prévu entre ces deux corps de support, dont la section transversale à des dimensions telles que ledit ruban conducteur (14) fond pour des courants dont l'intensité est suffisante pour souffler l'arc électrique hors de boîtier (9) contenant le parafoudre.
2. Installation haute tension à blindage métallique et à isolation par un gaz selon la revendication 1, caractérisée par le fait que le ruban électriquement conducteur et flexible (14) est porté par un ressort hélicoïdal (17) monté entre les surfaces (15) des corps de support (12, 13) et dont l'axe longitudinal s'étend perpendiculairement aux surfaces (15) des corps de support (12, 13).
3. Installation haute tension à blindage métallique et à isolation par un gaz selon la revendication 1 ou 2, caractérisée par le fait que la surface (15) du corps de support (12) qui est voisin de la traversée (5) est plus grande que celle du corps de support (13) qui est situé du côté du parafoudre (5).
4. Installation haute tension à blindage métallique et à isolation par un gaz selon la revendication 1 ou 2 ou 3, caractérisée par le fait que le corps de support (13) qui est voisin de la traversée (5), est réalisé de manière à résister à l'usure par l'arc électrique.
EP87730011A 1986-02-13 1987-02-03 Installation haute tension à blindage métallique isolée au gaz, muni d'un parafoudre Expired EP0236257B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863604785 DE3604785A1 (de) 1986-02-13 1986-02-13 Metallgekapselte, gasisolierte hochspannungsanlage mit einem ueberspannungsableiter
DE3604785 1986-02-13

Publications (2)

Publication Number Publication Date
EP0236257A1 EP0236257A1 (fr) 1987-09-09
EP0236257B1 true EP0236257B1 (fr) 1989-12-27

Family

ID=6294143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730011A Expired EP0236257B1 (fr) 1986-02-13 1987-02-03 Installation haute tension à blindage métallique isolée au gaz, muni d'un parafoudre

Country Status (6)

Country Link
US (1) US4754363A (fr)
EP (1) EP0236257B1 (fr)
JP (1) JPS62193074A (fr)
CA (1) CA1296382C (fr)
DE (2) DE3604785A1 (fr)
SU (1) SU1498404A3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820272C1 (fr) * 1987-10-20 1989-04-06 Krone Ag, 1000 Berlin, De
JPH10214726A (ja) * 1997-01-28 1998-08-11 Hitachi Ltd 変圧器中性点用避雷器の取付構造
GB9717817D0 (en) * 1997-08-21 1997-10-29 Bowthorpe Plc Improvements relating to high voltage electric installation
WO2012092551A1 (fr) 2010-12-31 2012-07-05 Bridgestone Corporation Polymérisation en masse de diènes conjugués utilisant un système catalytique à base de nickel
US8987395B2 (en) 2010-12-31 2015-03-24 Bridgestone Corporation Bulk polymerization of conjugated dienes using a nickel-based catalyst system
DE102019207465A1 (de) * 2019-05-22 2020-11-26 Siemens Aktiengesellschaft Abtrennvorrichtung für einen Überspannungsableiter und Anordnung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438235A1 (de) * 1960-11-14 1968-11-14 Westinghouse Electric Corp UEberspannungsableiter
DE1290241B (de) * 1965-09-17 1969-03-06 Bbc Brown Boveri & Cie UEberspannungsableiter
DE2247996A1 (de) * 1972-09-27 1974-04-11 Siemens Ag Metallgekapselte hochspannungsanlage mit einem ueberspannungsableiter
DE2247997A1 (de) * 1972-09-27 1974-04-11 Siemens Ag Ueberspannungsableiter mit isolierendem gehaeuse
DE2324744A1 (de) * 1972-12-01 1974-06-12 Sprecher & Schuh Ag Ueberspannungsableiter
DE2354459A1 (de) * 1973-10-31 1975-05-15 Transformatoren Union Ag Ueberspannungsableiter mit ueberdruckentlastungseinrichtung und -anzeige

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158859A (en) * 1936-11-28 1939-05-16 Gen Electric Electric protective system and apparatus
US2174477A (en) * 1938-10-29 1939-09-26 Ralph R Pittman Surge-protected fuse link
US2315320A (en) * 1939-04-21 1943-03-30 Line Material Co Automatic circuit-interrupting device
US2504438A (en) * 1944-07-19 1950-04-18 Electric Service Mfg Company Circuit interrupter
US2989608A (en) * 1956-05-31 1961-06-20 E M P Electric Ltd Electrical protective equipment
DE1189186B (de) * 1960-07-06 1965-03-18 Westinghouse Electric Corp Schutzanordnung, insbesondere fuer UEberspannungsableiter
DE1289174B (de) * 1963-03-08 1969-02-13 Siemens Ag UEberspannungsableiter
US3909676A (en) * 1974-04-22 1975-09-30 Ite Imperial Corp Self-operating fault current limiter switch
US4015228A (en) * 1974-06-10 1977-03-29 Matsushita Electric Industrial Co., Ltd. Surge absorber
JPS5595284A (en) * 1979-01-11 1980-07-19 Mitsubishi Electric Corp Arrester for transmission line
US4318153A (en) * 1980-06-09 1982-03-02 Porta Systems Corp. Sneak current fuse for telephone circuits
US4503414A (en) * 1983-06-20 1985-03-05 Sykes Huey P Current interrupting lightning arrester isolator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438235A1 (de) * 1960-11-14 1968-11-14 Westinghouse Electric Corp UEberspannungsableiter
DE1290241B (de) * 1965-09-17 1969-03-06 Bbc Brown Boveri & Cie UEberspannungsableiter
DE2247996A1 (de) * 1972-09-27 1974-04-11 Siemens Ag Metallgekapselte hochspannungsanlage mit einem ueberspannungsableiter
DE2247997A1 (de) * 1972-09-27 1974-04-11 Siemens Ag Ueberspannungsableiter mit isolierendem gehaeuse
DE2324744A1 (de) * 1972-12-01 1974-06-12 Sprecher & Schuh Ag Ueberspannungsableiter
DE2354459A1 (de) * 1973-10-31 1975-05-15 Transformatoren Union Ag Ueberspannungsableiter mit ueberdruckentlastungseinrichtung und -anzeige

Also Published As

Publication number Publication date
DE3604785A1 (de) 1987-08-20
SU1498404A3 (ru) 1989-07-30
JPS62193074A (ja) 1987-08-24
EP0236257A1 (fr) 1987-09-09
US4754363A (en) 1988-06-28
CA1296382C (fr) 1992-02-25
DE3761280D1 (de) 1990-02-01

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