EP0037364A1 - 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
EP0037364A1
EP0037364A1 EP81730024A EP81730024A EP0037364A1 EP 0037364 A1 EP0037364 A1 EP 0037364A1 EP 81730024 A EP81730024 A EP 81730024A EP 81730024 A EP81730024 A EP 81730024A EP 0037364 A1 EP0037364 A1 EP 0037364A1
Authority
EP
European Patent Office
Prior art keywords
arrester
bodies
elements
shielding
surge
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.)
Granted
Application number
EP81730024A
Other languages
German (de)
English (en)
Other versions
EP0037364B1 (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 for high and very high operating voltages that is equally suitable for installation in metal encapsulations or for outdoor use, which, with a low overall height, manages 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 for arrester elements instead of using a column of arrester elements as carriers for shielding bodies.
  • the space utilization can be increased further by arranging several arrester elements in series and / or parallel connection in the space enclosed by each shielding body.
  • a mechanically stable arrangement can be achieved so that the shield have a circumferential recess on their inner circumference, in which clamping pieces can be anchored.
  • 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.
  • surge arresters can be manufactured with the desired values for the leakage current and the quenching voltage with increased energy absorption capacity.
  • arrester elements can be accommodated in the space enclosed by a shielding body, in particular in a cruciform 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.
  • a column formed of similar shielding bodies and arrester elements arranged in the interior thereof 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 at the same time 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.
  • 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 earth connection 5 is located at the opposite end of the cylindrical housing 2.
  • 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 1-0 at any 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 depends on which voltages and currents the surge arrester should be able to handle. With regard to a compact design of the Koch Voltage arresters 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 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 selects conductive and insulating supporting bodies alternately from level to level, and in alternating succession, conductive connections are made between each two middle connecting bodies 11, one obtains 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 should be provided with a crushing membrane which prevents the housing or the encapsulation from being subjected to excessive pressure when the active part of the surge arrester is overloaded.
  • the interior spaces of the shielding bodies if these are designed as hollow bodies, can be used as collecting or buffer spaces for the gases that occur in the event of an overload if the connection with the arrester elements is suitable. 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 shielding body 21 has a similar arrangement as in FIG. 1, arrester elements 27.
  • conductive and insulating support bodies 30 and 31 and conductive and insulating connecting bodies 32 and 33 for a flow direction that changes from level to level Electricity is taken care of, as indicated by the arrows.
  • the surge arrester 35 according to FIG. 3 differs from the surge arrester 20 in 2 in that in each case 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.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Gas-Insulated Switchgears (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)
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 true EP0037364A1 (fr) 1981-10-07
EP0037364B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061990A1 (fr) * 1981-03-26 1982-10-06 Siemens Aktiengesellschaft Dérivateur de surtensions comportant des écrans entourant un empilage d'éléments dérivateurs
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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH555610A (de) * 1972-10-11 1974-10-31 Westinghouse Electric Corp Elektrische hochspannungseinrichtung mit einer metallkapselung und einem ueberspannungsableiter.

Family Cites Families (10)

* 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.
AT182436B (de) * 1953-03-18 1955-06-25 Asea Ab Funkenstreckenstapel mit reduzierter Höhe für Ventilableiter
CH303429A (de) * 1953-09-17 1954-11-30 Bbc Brown Boveri & Cie Uberspannungsableiter in Isoliergehäuse.
US3019367A (en) * 1957-01-04 1962-01-30 Ohio Brass Co Lighting arrester and gap unit therefor
FR1206291A (fr) * 1958-07-07 1960-02-09 Acec Parafoudre pour très haute tension
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
US3649875A (en) * 1969-08-01 1972-03-14 Mitsubishi Electric Corp Lightning arrester
JPS4948093A (fr) * 1972-09-09 1974-05-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH555610A (de) * 1972-10-11 1974-10-31 Westinghouse Electric Corp Elektrische hochspannungseinrichtung mit einer metallkapselung und einem ueberspannungsableiter.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0061990A1 (fr) * 1981-03-26 1982-10-06 Siemens Aktiengesellschaft Dérivateur de surtensions comportant des écrans entourant un empilage d'éléments dérivateurs
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

Also Published As

Publication number Publication date
EP0037364B1 (fr) 1984-07-18
SU1153848A3 (ru) 1985-04-30
IN152934B (fr) 1984-05-05
JPH0126154B2 (fr) 1989-05-22
JPS56152183A (en) 1981-11-25
ATE8549T1 (de) 1984-08-15
DE3012741C2 (de) 1982-08-12
DD157647A5 (de) 1982-11-24
BR8101869A (pt) 1981-09-29
ZA812067B (en) 1982-04-28
DE3012741A1 (de) 1981-10-01
US4369480A (en) 1983-01-18

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