EP0614198A2 - Parafoudre - Google Patents
Parafoudre Download PDFInfo
- Publication number
- EP0614198A2 EP0614198A2 EP94102537A EP94102537A EP0614198A2 EP 0614198 A2 EP0614198 A2 EP 0614198A2 EP 94102537 A EP94102537 A EP 94102537A EP 94102537 A EP94102537 A EP 94102537A EP 0614198 A2 EP0614198 A2 EP 0614198A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- surge arrester
- connection fittings
- arrester according
- loops
- varistor element
- 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
Links
Images
Classifications
-
- 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
Definitions
- the invention is based on a surge arrester according to the introductory part of patent claim 1.
- An overvoltage arrester described in this prior art contains a plurality of stacked nonlinear resistance elements with varistor behavior, which are arranged between two current connection fittings.
- a winding made of non-conductive material around the resistance elements and part of the connection fittings tensions the connection fittings and the resistance elements to form an axially acting force. This force is required to form a current path, which must carry high currents for a short time when overvoltage occurs.
- a cast housing made of weather-resistant plastic surrounds the resistance elements, the winding and the majority of the connection fittings.
- the invention is based on the object of providing a surge arrester which, despite its simple construction, has good mechanical and electrical properties and which can be produced in a particularly cost-effective manner.
- the surge arrester according to the invention is distinguished from comparable surge arresters according to the prior art in that it has a simple structure despite excellent mechanical and electrical properties and can therefore be produced in a particularly economical manner. All that is required for its assembly is a prefabricated template that temporarily ensures axial guidance, in which the connection fittings and the at least one varistor element are first stacked and then connected to the mechanically stable active part of the surge arrester by attaching the loops and forming a pretension. Since the loops are attached at a distance from the at least one varistor element, the active part can be cast around without any gaps and voids during the subsequent production of the cast housing. Therefore, the surge arrester according to the invention has not only good mechanical but also good electrical properties.
- the loops can already be prefabricated and then only need to be pushed onto the contact surfaces of the connection fittings during assembly.
- Particularly stable yet small loops contain a loop shape wrapped tape, which is advantageously embedded in a plastic matrix.
- the mechanical stability of the active part can then be achieved by subsequently tightening the elements stacked in the template during assembly, for example by means of a clamping device provided in one of the two connection fittings, or by spring elements which are installed in the stack arranged in the template and when attached the loops are pretensioned to form the desired contact force and thus also the necessary mechanical stability.
- An additional clamping device or additional spring elements can be saved if the loops are each formed by an elastically deformable band, for example made of glass fibers.
- the tape is then wrapped around the connection fittings with a pre-tension predetermined by the contact force, and is thereby stored on one of the contact surfaces of each of the two connection fittings, forming the contact force and thus also the mechanical stability of the active part.
- the wound tape should expediently be embedded in a plastic matrix, which is formed after the loops have been placed on the support surfaces by curing hardenable plastic.
- the tape is advantageously impregnated with a pre-gelled plastic, for example on the basis of epoxy (prepreg), which is hardened after the tensioning is carried out. Since such a tape has good adhesive properties, there are no fastening devices for the tape end when it is used.
- the contact surfaces on the connection fittings should preferably have a section with a semicircular surface profile of the largest possible circle diameter, since the tension force exerted by the tape is then absorbed particularly evenly by the connection fittings and acts as a homogeneously acting contact force on the at least one Varistor element is transmitted.
- the contact surfaces can be arranged on shoulders or in recesses in the connection fittings, which are designed as a shoulder or as a groove.
- the design as a groove is particularly advantageous here, since a groove can easily be molded into a commonly used, cylindrical connection fitting and at the same time ensures a particularly secure mounting of the associated loop.
- two contact surfaces arranged diametrically to one another are generally sufficient on each connection fitting, on each of which one of two loops is mounted. Additional stability is achieved by using three support surfaces which are offset by about 120 ° azimuthally around the axis, on each of which one of three loops is mounted. The stability may be slightly improved by four or more contact surfaces per connection fitting, but this requires additional manufacturing effort.
- At least one current transition element that is deformable when the contact force is formed is expediently provided in the current path between the connection fittings. This ensures particularly reliable contacting and thus good current carrying capacity of the current transition between two varistor elements or the connection fitting and a varistor element or a pressure plate possibly provided in the current path. It has turned out to be very favorable that the current transfer element is designed as a disk and has grooves which are guided concentrically about the axis and are formed in end faces of the disk. A current transfer element designed in this way seals the current transfer zones in the active part against the penetration of liquid insulating material when casting the housing of the surge arrester.
- the surge arrester shown in FIGS. 1 to 3 which is of essentially cylindrical symmetry, has two connection fittings 1, 2, which are preferably made of aluminum and spaced apart along the cylinder axis.
- the connection fitting 1 is provided with a fastening device (not shown) for an electrical conductor.
- an axially aligned threaded bore 3 is provided, in which a pressure screw 4 is slidably guided in the axial direction.
- 5 denotes two loops made of wound, fiberglass-reinforced tape and embedded in a plastic matrix. The ends of the loops are guided in grooves 6, which are formed in the connection fittings 1 and 2.
- the grooves 6 each form contact surfaces in the base of the groove with a section of semicircular surface profile, to which two axially extending sections are connected (FIG. 2).
- Cylindrical varistor elements 7 made of non-linear resistance material, for example based on metal oxide, such as in particular ZnO, are arranged between the connection fittings 1, 2.
- a disc-shaped pressure plate 8 made of aluminum is inserted into a recess in the connection fittings 1.
- Current transfer elements are arranged between this plate and the adjacent varistor element 7, between adjacent varistor elements 7 and between a further pressure plate 9 made of aluminum and a further varistor element 7, each of which is in the form of a disk 10 with grooves which are guided concentrically about the axis and are formed in the two end faces of the disk are trained.
- the disks 10 are advantageously formed from soft annealed aluminum.
- connection fittings 1, 2 are partial, the varistor elements 7, the pressure plates 8, 9 and the loops 5 are completely enclosed by a cast housing 12 provided with shields 11 made of insulating material.
- connection fitting 2 the pressure plate 9, alternately the disks 10 and the varistor elements 7, the pressure plate 8 and the connection fitting 1 are stacked one above the other in a template.
- the grooves 6 of the two connection fittings 1, 2 are aligned so that they are aligned with one another (FIG. 1).
- two prefabricated loops 6, which preferably each consist of a wound, ribbon-shaped prepreg, which was hardened after winding, are hung in the aligned grooves 6 and force is applied to the pressure plate 9 and thus via the tensioning loops by turning the pressure screw 4 5 also applied to all other parts of the arrester active part.
- two loops can also be used which are formed during the manufacture of the surge arrester.
- two tapes each subjected to a pretensioning force, are wound around the two connection fittings 1, 2 and placed on the contact surfaces of the two aligned grooves 6.
- the two connection fittings 1, 2 are firmly clamped together to form contact force, thereby forming a mechanically stable active part of the surge arrester to be manufactured.
- This bracing is generally already sufficient for good mechanical strength of the arrester active part.
- the arrester active part can therefore only consist of the two connection fittings 1, 2, the at least one varistor element 7 and the loops 5.
- These tapes are preferably prepregs, in particular based on glass fibers and epoxy. Prepregs have a good one Adhesive effect on. Loops wound from the pre-tensioned prepregs are therefore stable after winding even without an additional fastening device and can now be cured at elevated temperatures. Here, the loops 5 now form, which bring about the contact force and thus also the mechanical stability of the active part and which consist of the wound band and a hardened plastic matrix embedding the band.
- connection fittings can also have two shoulders 13 designed as shoulders.
- Such approaches can be easily molded into the connection fittings 1, 2 and facilitate the application of the loops 5.
- connection fittings may also have three grooves 6 or shoulders 13, each offset by 120 °.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
- Dowels (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4306691 | 1993-03-04 | ||
DE4306691A DE4306691A1 (de) | 1993-03-04 | 1993-03-04 | Ueberspannungsableiter |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0614198A2 true EP0614198A2 (fr) | 1994-09-07 |
EP0614198A3 EP0614198A3 (en) | 1994-09-14 |
EP0614198B1 EP0614198B1 (fr) | 1997-01-15 |
Family
ID=6481876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94102537A Expired - Lifetime EP0614198B1 (fr) | 1993-03-04 | 1994-02-19 | Parafoudre |
Country Status (13)
Country | Link |
---|---|
US (1) | US5517382A (fr) |
EP (1) | EP0614198B1 (fr) |
JP (1) | JP3556261B2 (fr) |
AT (1) | ATE147883T1 (fr) |
AU (1) | AU672860B2 (fr) |
CA (1) | CA2116836C (fr) |
CZ (1) | CZ284669B6 (fr) |
DE (2) | DE4306691A1 (fr) |
HR (1) | HRP940146B1 (fr) |
HU (1) | HU218050B (fr) |
PL (1) | PL172988B1 (fr) |
RU (1) | RU2126576C1 (fr) |
ZA (1) | ZA941311B (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0810613A2 (fr) * | 1996-06-01 | 1997-12-03 | Asea Brown Boveri AG | Limiteur de surtension |
US5936826A (en) * | 1998-03-25 | 1999-08-10 | Asea Brown Boveri Ag | Surge arrester |
WO2007085338A1 (fr) * | 2006-01-25 | 2007-08-02 | Tridelta Überspannungsableiter Gmbh | Coupe-circuit de surtension de type cage et son procédé de production |
WO2010089202A1 (fr) * | 2009-02-09 | 2010-08-12 | Siemens Aktiengesellschaft | Ensemble parafoudre |
WO2011095590A1 (fr) | 2010-02-05 | 2011-08-11 | Abb Technology Ag | Limiteur de surtension |
WO2012098250A1 (fr) | 2011-01-21 | 2012-07-26 | Tridelta Überspannungsableiter Gmbh | Limiteur de tension à configuration en cage |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE504075C2 (sv) * | 1994-08-29 | 1996-11-04 | Asea Brown Boveri | Ventilavledare |
FR2726118B1 (fr) * | 1994-10-19 | 1996-12-06 | Girard Francois | Dispositif parafoudre |
US5680289A (en) * | 1996-06-27 | 1997-10-21 | Raychem Corporation | Surge arrester |
US5712757A (en) * | 1996-06-27 | 1998-01-27 | Raychem Corporation | Surge arrester having ridged terminals |
US5757604A (en) * | 1996-06-27 | 1998-05-26 | Raychem Corporation | Surge arrester having grooved and ridged terminals |
DE19926950A1 (de) * | 1999-06-14 | 2000-12-21 | Abb Research Ltd | Kabelendgarnitur |
DE19942633A1 (de) * | 1999-09-07 | 2001-03-08 | Abb Hochspannungstechnik Ag | Überspannungsableiter |
DE50311891D1 (de) | 2003-02-12 | 2009-10-22 | Abb Technology Ag | Aktivteil für einen Überspannungsableiter |
SE527132C2 (sv) * | 2003-04-30 | 2005-12-27 | Abb Technology Ltd | Ventilavledare |
EP1603141B1 (fr) * | 2004-06-04 | 2016-08-24 | ABB Schweiz AG | Limiteur de surtensions avec isolation au gaz |
DE602006007864D1 (de) * | 2006-12-22 | 2009-08-27 | Abb Technology Ltd | Überspannungsableiter |
US7660093B2 (en) | 2007-11-20 | 2010-02-09 | Hubbell Incorporated | Arrester block module assembly and method |
DE102008057232A1 (de) * | 2008-11-11 | 2010-05-12 | Siemens Aktiengesellschaft | Überspannungsableiter mit einem Varistorelement und Verfahren zur Herstellung eines Überspannungsableiters |
RU2474901C1 (ru) * | 2011-09-06 | 2013-02-10 | Закрытое акционерное общество "Завод энергозащитных устройств" | Способ изготовления оксидно-цинковых варисторов |
EP2953141B1 (fr) | 2014-06-04 | 2016-09-28 | ABB Schweiz AG | Module de limiteur de surtension et limiteur de surtension |
EP2998970B1 (fr) | 2014-09-22 | 2017-08-02 | Siemens Aktiengesellschaft | Limiteur du surtension |
US11177058B2 (en) | 2017-08-30 | 2021-11-16 | Jonathan Woodworth | Composite surge arrester module in a die and method of construction |
JP2022052786A (ja) * | 2020-09-24 | 2022-04-05 | 株式会社明電舎 | 避雷器 |
EP4369358A1 (fr) | 2022-11-14 | 2024-05-15 | Hitachi Energy Ltd | Module de limiteur de surtension et limiteur de surtension |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0335480B1 (fr) | 1988-03-31 | 1992-12-23 | Hubbell Incorporated | Ensembles modulaires électriques à décharge de pression |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1413906A1 (de) * | 1960-10-07 | 1968-10-10 | Licentia Gmbh | In einem atmungsfest abgedichteten Gehaeuse befindlicher UEberspannungsableiter mit Loeschfunkenstrecke und spannungsabhaengigen Widerstaenden |
DE1563738A1 (de) * | 1966-08-30 | 1970-06-18 | Siemens Ag | UEberspannungsableiter fuer Hochspannung |
US4100588A (en) * | 1977-03-16 | 1978-07-11 | General Electric Company | Electrical overvoltage surge arrester with varistor heat transfer and sinking means |
JPS5919448B2 (ja) * | 1978-03-03 | 1984-05-07 | 株式会社日立製作所 | 避雷器 |
FR2423093A1 (fr) * | 1978-04-11 | 1979-11-09 | Thomson Csf | Systeme de transmission de signaux electriques a liaison optique et dispositif de controle automatique du gain d'une voie de reception connectee a cette liaison optique |
SU1051645A1 (ru) * | 1981-11-13 | 1983-10-30 | Научно-Исследовательский И Проектно-Технологический Институт Электрокерамических Изделий | Многофазный ограничитель перенапр жений дл районов с загр зненной атмосферой |
SU1377926A1 (ru) * | 1982-10-12 | 1988-02-28 | Государственный Макеевский Научно-Исследовательский Институт По Безопасности Работ В Горной Промышленности | Ограничитель перенапр жений |
US4899248A (en) * | 1984-12-14 | 1990-02-06 | Hubbell Incorporated | Modular electrical assemblies with plastic film barriers |
US4656555A (en) * | 1984-12-14 | 1987-04-07 | Harvey Hubbell Incorporated | Filament wrapped electrical assemblies and method of making same |
GB8527548D0 (en) * | 1985-11-08 | 1985-12-11 | Raychem Gmbh | Electrical equipment |
DK173921B1 (da) * | 1986-01-29 | 2002-02-18 | Bowthorpe Ind Ltd | Elektrisk overspændingsafledningsindretning, fremgangsmåde og apparat til fremstilling samt en anvendelse af en sådan indretning |
JPS63313805A (ja) * | 1987-06-17 | 1988-12-21 | Otowa Denki Kogyo Kk | 避雷器 |
US4905118A (en) * | 1988-03-31 | 1990-02-27 | Hubbell Incorporated | Base mounted electrical assembly |
FR2659169B1 (fr) * | 1990-03-02 | 1992-06-19 | Ferraz | Dispositif parafoudre pour la protection des lignes electriques. |
CH682858A5 (de) * | 1991-12-04 | 1993-11-30 | Asea Brown Boveri | Ueberspannungsableiter. |
-
1993
- 1993-03-04 DE DE4306691A patent/DE4306691A1/de not_active Withdrawn
-
1994
- 1994-02-19 AT AT94102537T patent/ATE147883T1/de active
- 1994-02-19 EP EP94102537A patent/EP0614198B1/fr not_active Expired - Lifetime
- 1994-02-19 DE DE59401564T patent/DE59401564D1/de not_active Expired - Lifetime
- 1994-02-24 HU HU9400549A patent/HU218050B/hu unknown
- 1994-02-25 PL PL94302386A patent/PL172988B1/pl unknown
- 1994-02-25 ZA ZA941311A patent/ZA941311B/xx unknown
- 1994-02-25 AU AU56423/94A patent/AU672860B2/en not_active Expired
- 1994-03-02 CA CA002116836A patent/CA2116836C/fr not_active Expired - Lifetime
- 1994-03-02 RU RU94006797/09A patent/RU2126576C1/ru active
- 1994-03-03 CZ CZ94484A patent/CZ284669B6/cs not_active IP Right Cessation
- 1994-03-03 HR HRP4306691.7A patent/HRP940146B1/xx not_active IP Right Cessation
- 1994-03-04 US US08/205,803 patent/US5517382A/en not_active Expired - Lifetime
- 1994-03-04 JP JP03501494A patent/JP3556261B2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0335480B1 (fr) | 1988-03-31 | 1992-12-23 | Hubbell Incorporated | Ensembles modulaires électriques à décharge de pression |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0810613A2 (fr) * | 1996-06-01 | 1997-12-03 | Asea Brown Boveri AG | Limiteur de surtension |
DE19622140A1 (de) * | 1996-06-01 | 1997-12-04 | Asea Brown Boveri | Überspannungsableiter |
EP0810613A3 (fr) * | 1996-06-01 | 1998-07-22 | Asea Brown Boveri AG | Limiteur de surtension |
US5942968A (en) * | 1996-06-01 | 1999-08-24 | Asea Brown Boveri Ag | Overvoltage suppressor |
US5936826A (en) * | 1998-03-25 | 1999-08-10 | Asea Brown Boveri Ag | Surge arrester |
DE19813135A1 (de) * | 1998-03-25 | 1999-09-30 | Asea Brown Boveri | Überspannungsableiter |
WO2007085338A1 (fr) * | 2006-01-25 | 2007-08-02 | Tridelta Überspannungsableiter Gmbh | Coupe-circuit de surtension de type cage et son procédé de production |
US8009402B2 (en) | 2006-01-25 | 2011-08-30 | Tridelta Uberspannungsableiter Gmbh | Surge arrester with a cage design, and a production method for it |
WO2010089202A1 (fr) * | 2009-02-09 | 2010-08-12 | Siemens Aktiengesellschaft | Ensemble parafoudre |
WO2011095590A1 (fr) | 2010-02-05 | 2011-08-11 | Abb Technology Ag | Limiteur de surtension |
US8593775B2 (en) | 2010-02-05 | 2013-11-26 | Abb Technology Ag | Surge arrester |
WO2012098250A1 (fr) | 2011-01-21 | 2012-07-26 | Tridelta Überspannungsableiter Gmbh | Limiteur de tension à configuration en cage |
DE102011009124A1 (de) | 2011-01-21 | 2012-07-26 | Tridelta Überspannungsableiter Gmbh | Überspannungsableiter mit Käfig-Design |
Also Published As
Publication number | Publication date |
---|---|
US5517382A (en) | 1996-05-14 |
JPH06325852A (ja) | 1994-11-25 |
AU672860B2 (en) | 1996-10-17 |
ZA941311B (en) | 1994-09-30 |
PL302386A1 (en) | 1994-09-05 |
DE4306691A1 (de) | 1994-11-03 |
HRP940146B1 (en) | 1998-06-30 |
CZ284669B6 (cs) | 1999-01-13 |
EP0614198B1 (fr) | 1997-01-15 |
HUT70232A (en) | 1995-09-28 |
CA2116836A1 (fr) | 1994-09-05 |
HU218050B (hu) | 2000-05-28 |
HU9400549D0 (en) | 1994-05-30 |
PL172988B1 (pl) | 1998-01-30 |
ATE147883T1 (de) | 1997-02-15 |
RU2126576C1 (ru) | 1999-02-20 |
HRP940146A2 (en) | 1996-10-31 |
AU5642394A (en) | 1994-09-08 |
JP3556261B2 (ja) | 2004-08-18 |
EP0614198A3 (en) | 1994-09-14 |
DE59401564D1 (de) | 1997-02-27 |
CA2116836C (fr) | 1999-01-05 |
CZ48494A3 (en) | 1994-11-16 |
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