EP0037364B1 - Parafoudre avec une colonne de composants de parafoudres et de corps de blindage - Google Patents

Parafoudre avec une colonne de composants de parafoudres et de corps de blindage Download PDF

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Publication number
EP0037364B1
EP0037364B1 EP81730024A EP81730024A EP0037364B1 EP 0037364 B1 EP0037364 B1 EP 0037364B1 EP 81730024 A EP81730024 A EP 81730024A EP 81730024 A EP81730024 A EP 81730024A EP 0037364 B1 EP0037364 B1 EP 0037364B1
Authority
EP
European Patent Office
Prior art keywords
arrester
elements
bodies
surge
shielding
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
EP81730024A
Other languages
German (de)
English (en)
Other versions
EP0037364A1 (fr
Inventor
Michael Dr. Crucius
Mohamed Aziz Hassan
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
Priority to AT81730024T priority Critical patent/ATE8549T1/de
Publication of EP0037364A1 publication Critical patent/EP0037364A1/fr
Application granted granted Critical
Publication of EP0037364B1 publication Critical patent/EP0037364B1/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
    • 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
    • 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
    • H01C7/123—Arrangements for improving potential distribution

Definitions

  • a surge arrester with these features has become known, for example, from DE-AS 20 37 921.
  • the shielding bodies have the task of ensuring a uniform distribution of the voltage over the arrester elements connected in series.
  • the desired operation of the surge arrester can be ensured in this way even if the surge arrester has a grounded metal housing, as is used in connection with pressurized gas-insulated, metal-enclosed switchgear.
  • the invention has for its object to provide a surge arrester suitable for installation in metal encapsulations or for outdoor use for high and very high operating voltages, which manages with a small overall height with simple means for controlling the voltage distribution and has a greater energy absorption capacity.
  • the basic idea of the invention is therefore to use a number of shielding bodies as carriers of arrester elements instead of using a column of arrester elements as carriers of shielding bodies as before.
  • the space utilization can be further increased in that several arrester elements are arranged in series and / or in parallel in the space enclosed by each shielding body.
  • a mechanically stable arrangement can be achieved in such a way that the shielding bodies have a circumferential depression on their inner circumference, in which clamping pieces can be anchored.
  • sliding nuts can be used as clamping pieces, into which the arrester elements are screwed with a threaded bolt.
  • a parallel connection of arrester elements can also extend over several levels.
  • at least two adjacent shielding bodies can be conductively connected to one another and the arrester elements attached to them can thereby be connected in parallel.
  • arrester elements can cross in particular in the space enclosed by a shielding body. or star-shaped arrangement; it is advisable to provide a connecting body in the center of this arrangement, which can be connected to the connecting bodies of adjacent groups of arrester elements.
  • the connecting bodies can be conductive or insulating, depending on the way in which the leakage current is to flow through the overall arrangement.
  • An arrangement formed by similar shielding bodies and arrester elements arranged in their interior can be provided with shielding bodies of larger diameter at both ends. These improve the field pattern at the ends of the arrester arrangement and can also be used for fastening within an enclosing housing or as a ground-side base or voltage connection for installation without a housing.
  • Fig. 1 shows a metal-encapsulated surge arrester in section. 2 and 3, two embodiments of surge arresters for outdoor installation without a housing are shown in view.
  • the surge arrester 1 comprises a metal housing 2 which can be closed gas-tight and an insulating gas, for. B. SF 6 contains.
  • the active part of the arrester designated as a whole by 3, is connected by means of a bushing 4 to the live parts of the system to be protected.
  • an Erdan conclusion 5 At the opposite end of the cylindrical housing 2 is an Erdan conclusion 5.
  • the active part 3 comprises a number of annular shielding bodies 6 which have a groove-like depression 7 on their inner circumference. It can also be a slot if the shielding bodies 6 are made of sheet metal as hollow bodies.
  • the groove 7 creates the possibility of attaching conductor elements 10 at any desired point on the inner circumference of the shielding body 6 by means of suitable clamping pieces, slide nuts or similar parts.
  • four arrester elements 10 are provided in a cross-shaped arrangement in the space enclosed by each shielding body 6. These four arrester elements are electrically connected in parallel with a conductive connection to the shielding bodies 6 and to a common central connecting body 11.
  • Each individual arrester element 10 can be a voltage-dependent resistor, a spark gap, a series connection of such elements or an element used to control the voltage distribution. Which elements are selected or combined with one another depends on which voltages and currents the surge arrester should be able to handle. With regard to the most compact possible design of the surge arrester for high and very high operating voltages, it is advisable to use those based on zinc oxide as voltage-dependent resistors. Of course, resistors based on silicon carbide or other non-linear materials can also be used.
  • an insulating support body 12 is arranged at each connection point of a conductor element 10 with a shielding body 6 on one side and a conductive support body 13 on the other side.
  • the next group of arrester elements 10 with their associated shielding body 6 rests on these. If one chooses alternatingly dividing and insulating support bodies from level to level, and in alternating succession, conductive connections are made between two middle connecting bodies 11, one will receive one alternately from the outside current path running inwards and outwards through the entire surge arrester. As can easily be seen, a smaller or larger number of arrester elements than four can also be accommodated per level.
  • a further shielding body 14 with a larger diameter in order to homogenize the edge field is located at the upper end of the active part 3.
  • the entire active part, as shown in FIG. 1, is fastened and centered in the metal housing 2 by the bushing 4 and the insulating supports 15.
  • an insulating material housing can also be used if the arrester is intended for outdoor installation.
  • the housing or the encapsulation can be provided with a crushing membrane which prevents excessive pressure stress on the housing or the encapsulation when the active part of the surge arrester is overloaded.
  • the interior spaces of the shielding bodies if they are designed as hollow bodies, can be used, if suitably connected to the arrester elements, as collecting or buffer spaces for the gases that occur in the event of an overload. These then do not directly stress the housing or the encapsulation and can be derived from them at a desired location.
  • the surge arrester 20 according to FIG. 2 is designed without a housing. Its structure corresponds to the structure of the active part explained with reference to FIG. 1. A number of ring-shaped shielding bodies 21 are thus provided, to which a larger shielding body 23 is connected in the direction of the voltage connection 22 and also a larger shielding body 25 in the direction of the earth connection 24. Between the lower final shielding body 25 and the ground connection 24, a monitoring device 26, for. B. a response counter inserted.
  • each shield body 21 includes a similar arrangement as in Figure 1 Ableiterele -. Mente 27. Also, by alternating insertion of conducting and insulating support members 30 and 31 as well as conductive and insulating connection bodies 32 and 33 changing for from level to level Direction of flow of the current, as indicated by the arrows.
  • the surge arrester 35 according to FIG. 3 differs from the surge arrester 20 in FIG. 2 in that two adjacent shielding bodies 36 are directly adjacent to one another and are therefore arranged in a conductive connection or are combined to form a shielding body. In this way, the arrester elements 37 enclosed by them are connected in parallel. With a total of six shielding bodies 36, this results in three groups of arrester elements connected in parallel, which are then connected in series in the same way as was explained above. This arrangement with partial parallel connection is advantageous if higher leakage currents or energy values are to be mastered.
  • the number of shielding bodies shown in the figures is selected only for the purpose of clear presentation. In their actual design, the surge arresters can therefore have a smaller or larger number of shielding bodies. Furthermore, the circular ring shape of the shielding body is chosen only as an expedient example. Therefore, if it turns out to be favorable for the accommodation of the arrester elements, other shapes, e.g. B. rectangular or square shielding body with rounded shape can be selected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Saccharide Compounds (AREA)
  • Control Of Eletrric Generators (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (6)

1. Dispositif dérivant les surtensions compor tant
a) une colonne formée d'une multiplicité d'éléments dérivateurs (10) et
b) plusieurs corps de blindage (6) entourant la colonne,

caractérisé par le fait que
c) les corps de blindage (6) sont reliés entre eux par des éléments de soutien (12, 13) et que
d) les corps de blindage (6) possédant un dispositif (7) servant à la fixation d'éléments dérivateurs (6).
2. Dispositif dérivant les surtensions suivant la revendication 1, caractérisé par le fait que dans l'espace entouré par chaque corps de blindage (6), plusieurs éléments dérivateurs (10) sont disposés selon un montage série et/ou parallèle
3. Dispositif dérivant les surtensions suivant la revendication 2, caractérisé par le fait qu'au moins deux corps de blindage (36) voisins sont reliés entre eux de façon conductrice et que de ce fait les éléments dérivateurs, qui sont montés dans ces corps, sont branchés en parallèle.
4. Dispositif dérivant les surtensions suivant la revendication 1, caractérisé par le fait que les corps de blindage possèdent, sur leur pourtour intérieur, un renfoncement continu (7) dans lequel des organes de blocage peuvent être ancrés.
5. Dispositif dérivant les surtensions suivant la revendication 1, caractérisé par le fait que dans le cas d'un dispositif en forme de croix ou d'étoile d'un groupe d'éléments dérivateurs (10), au centre de ce dispositif se trouve disposé un organe de liaison (11) qui peut être relié aux corps de liaison (11) de groupes voisins d'éléments dérivateurs (10).
6. Dispositif dérivant les surtensions suivant la revendication 1, caractérisé par le fait qu'un dispositif identique, situé aux deux extrémités et formé par des corps de blindage (6) et par des éléments dérivateurs (7) disposés dans l'espace intérieur de ces corps, est muni de corps de blindage (14) possédant un diamètre supérieur.
EP81730024A 1980-03-28 1981-03-09 Parafoudre avec une colonne de composants de parafoudres et de corps de blindage Expired EP0037364B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81730024T ATE8549T1 (de) 1980-03-28 1981-03-09 Ueberspannungsableiter mit einer saeule von ableiterelementen und abschirmkoerpern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3012741A DE3012741C2 (de) 1980-03-28 1980-03-28 Überspannungsableiter mit einer Säule von Ableiterelementen und Abschirmkörpern
DE3012741 1980-03-28

Publications (2)

Publication Number Publication Date
EP0037364A1 EP0037364A1 (fr) 1981-10-07
EP0037364B1 true EP0037364B1 (fr) 1984-07-18

Family

ID=6099037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730024A Expired EP0037364B1 (fr) 1980-03-28 1981-03-09 Parafoudre avec une colonne de composants de parafoudres et de corps de blindage

Country Status (10)

Country Link
US (1) US4369480A (fr)
EP (1) EP0037364B1 (fr)
JP (1) JPS56152183A (fr)
AT (1) ATE8549T1 (fr)
BR (1) BR8101869A (fr)
DD (1) DD157647A5 (fr)
DE (1) DE3012741C2 (fr)
IN (1) IN152934B (fr)
SU (1) SU1153848A3 (fr)
ZA (1) ZA812067B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112477C2 (de) * 1981-03-26 1984-02-02 Siemens AG, 1000 Berlin und 8000 München Überspannungsableiter mit eine Säule von Ableiterelementen umschließenden Abschirmkörpern
GB2345203A (en) * 1998-12-21 2000-06-28 Bowthorpe Ind Ltd High voltage surge arrester
WO2020053963A1 (fr) * 2018-09-11 2020-03-19 株式会社 東芝 Parafoudre et son procédé de fabrication
US11502503B2 (en) * 2019-05-10 2022-11-15 Christopher Joseph Hodges Switchgear arrestor system with isolators
CN112649684B (zh) * 2020-12-09 2023-05-23 全球能源互联网研究院有限公司 一种金属氧化物限压器中阀片分组、损坏检测方法和系统
CN114843055A (zh) * 2022-05-07 2022-08-02 南阳金牛电气有限公司 超级过电压防护避雷器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239487A (de) * 1944-02-03 1945-10-15 Oerlikon Maschf Uberspannungsableiter.
CH303429A (de) * 1953-09-17 1954-11-30 Bbc Brown Boveri & Cie Uberspannungsableiter in Isoliergehäuse.
CH304299A (de) * 1952-09-11 1954-12-31 Bbc Brown Boveri & Cie Uberspannungsableiter für hohe Betriebsspannungen.
US2946920A (en) * 1958-07-07 1960-07-26 Acec Lightning arresters for very high voltage
DE2037921B2 (de) * 1969-08-01 1972-08-17 Mitsubishi Denki K K , Tokio Blitzschutzeinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT182436B (de) * 1953-03-18 1955-06-25 Asea Ab Funkenstreckenstapel mit reduzierter Höhe für Ventilableiter
US3019367A (en) * 1957-01-04 1962-01-30 Ohio Brass Co Lighting arrester and gap unit therefor
CH422965A (de) * 1965-02-26 1966-10-31 Oerlikon Maschf Uberspannungsableiter in Isoliergehäuse
US3484863A (en) * 1967-11-17 1969-12-16 Mc Graw Edison Co Lightning arrester
JPS4948093A (fr) * 1972-09-09 1974-05-09
US3753045A (en) * 1972-10-11 1973-08-14 Westinghouse Electric Corp Shielded metal enclosed lightning arrester

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239487A (de) * 1944-02-03 1945-10-15 Oerlikon Maschf Uberspannungsableiter.
CH304299A (de) * 1952-09-11 1954-12-31 Bbc Brown Boveri & Cie Uberspannungsableiter für hohe Betriebsspannungen.
CH303429A (de) * 1953-09-17 1954-11-30 Bbc Brown Boveri & Cie Uberspannungsableiter in Isoliergehäuse.
US2946920A (en) * 1958-07-07 1960-07-26 Acec Lightning arresters for very high voltage
DE2037921B2 (de) * 1969-08-01 1972-08-17 Mitsubishi Denki K K , Tokio Blitzschutzeinrichtung

Also Published As

Publication number Publication date
ATE8549T1 (de) 1984-08-15
DE3012741C2 (de) 1982-08-12
IN152934B (fr) 1984-05-05
SU1153848A3 (ru) 1985-04-30
DD157647A5 (de) 1982-11-24
ZA812067B (en) 1982-04-28
JPH0126154B2 (fr) 1989-05-22
JPS56152183A (en) 1981-11-25
EP0037364A1 (fr) 1981-10-07
BR8101869A (pt) 1981-09-29
US4369480A (en) 1983-01-18
DE3012741A1 (de) 1981-10-01

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