EP0810613A2 - Limiteur de surtension - Google Patents
Limiteur de surtension Download PDFInfo
- Publication number
- EP0810613A2 EP0810613A2 EP97810222A EP97810222A EP0810613A2 EP 0810613 A2 EP0810613 A2 EP 0810613A2 EP 97810222 A EP97810222 A EP 97810222A EP 97810222 A EP97810222 A EP 97810222A EP 0810613 A2 EP0810613 A2 EP 0810613A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- surge arrester
- loop
- arrester according
- connection fittings
- axis
- 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
-
- 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 preamble of patent claim 1.
- An overvoltage arrester described in this prior art contains a plurality of cylindrical resistance elements with varistor behavior, which are stacked in a column-like manner and arranged between two power connection fittings.
- a tensioning part holding the varistors and the two connection fittings together to form an axially acting contact force has at least two loops with their ends resting on the connection fittings.
- a cast housing made of weather-resistant plastic surrounds the varistors, the loops and the majority of the connection fittings.
- the invention is based on the object of creating a surge arrester of the type mentioned which, despite its simple construction, is distinguished by good mechanical and electrical properties and which can also be produced in a particularly cost-effective manner.
- the surge arrester according to the invention has the advantage over a surge arrester according to the prior art that it only requires a single loop for fixing and bracing two connection fittings and at least one varistor held between the fittings.
- the surge arrester can therefore be manufactured in a particularly economical manner. All that is required for its assembly is a pre-made template that temporarily ensures axial guidance, in which the connection fittings and the at least one varistor are first stacked in the form of a column and then connected to the mechanically stable active part of the surge arrester by attaching the loop to form a pretension. Since the axis of the columnar active part penetrates the loop ends essentially symmetrically, the loop generates a uniform contact force in the entire active part. If an overvoltage occurs, a uniform current density of an arrester current carried in the active part is ensured and therefore an inadmissibly high local heating of contact transitions of the active part is avoided with great certainty.
- the surge arrester shown in FIGS. 1 to 3 has two connection fittings 1, 2, preferably made of aluminum and spaced apart along an axis z.
- the connection fitting 1 is provided with a fastening device designed as a screw bore 11 for an electrical conductor (not shown) that can be guided to high voltage potential.
- the connection fitting 2 can be guided to earth potential with a fastening device designed as a screw bore 12. It has an axially aligned threaded bore 3, in which a pressure screw 4 is slidably guided in the axial direction.
- the reference numeral 5 denotes a loop made of a wound, glass fiber reinforced and in a plastic matrix embedded band. The loop 5 is guided with its two ends in slit-shaped sections of material recesses 6, 7, which are molded into the connection fittings 1, 2.
- metal oxide such as in particular ZnO
- two or more varistor elements stacked in a column-like manner can also be provided.
- connection fitting 1 In a disc-shaped recess formed in the connection fitting 1, electrically conductive parts, namely two spring elements 9 which generate contact pressure and each form a plate spring and a pressure disc 10 which is preferably made of aluminum or copper or an aluminum or copper alloy, are displaceably mounted in the axial direction (FIG. 2).
- a thrust washer 13 made of the same material as the part 10 is also displaceably mounted in the axial direction (FIG. 2).
- Current transfer elements 14 are arranged between the thrust washer 10 and the varistor element 8 and between the thrust washer 13 and the varistor element 8, each of which is designed as a washer with grooves which are guided concentrically about the axis and are formed in the two end faces of the washer (FIG. 3).
- the current transfer elements 14 are advantageously formed from soft annealed aluminum.
- each of the slot-shaped sections identified by the reference numerals 15, 16 extends essentially transversely to the axis z from the outer surface of the power connection fitting 1 or 2 to over the axis z.
- Each of the two ends of the loop 5 extends beyond the axis z into the slot-shaped section 15 and 16, respectively introduced and in each case lies on a surface 17 or 18 (FIG. 3) delimiting the slot-shaped section 15 or 16.
- This ensures that the loop 5 is held centrally in the area of the axis z and ensures a uniform contact pressure in the arrester active part.
- a uniform current density of the arrester current carried in the arrester active part when an overvoltage occurs is thus ensured.
- impermissibly high local heating in the arrester active part is avoided.
- the bearing surfaces 17, 18 have an essentially circular arc-shaped surface profile.
- the loop ends then lie on the connection fittings 1, 2 with a uniform, relatively slight curvature. As a result, undesirable large bending and shear stresses of the loops are largely avoided.
- a rectangular, in particular a square, cross-sectional profile of the loop 5 with a relatively small width transversely to the axis z is particularly advantageous since the slit-shaped section 15 or 16 then only has to extend insignificantly beyond the axis z.
- the connection fitting 1 or 2 then has a high mechanical strength.
- connection fittings 1, 2 are partially, the varistor elements 8, the pressure plates 10, 13 and the loop 5 are completely surrounded by a cast housing 19 provided with shields made of insulating material, preferably of an elastomeric silicone (FIG. 1).
- connection fitting 2 To manufacture this surge arrester, the connection fitting 2, the pressure plate 13, one of the current transfer elements 14, the varistor element 8, a further current transfer element 14, the pressure plate 10, the two spring elements 9 and the connection fitting 1 are stacked on top of one another in a template and with a prestressing force acted upon.
- the connection fittings 1, 2 are aligned in such a way that the two slot-shaped sections 15, 16 lie congruently one above the other (FIGS. 2 and 3).
- a prefabricated loop 5, which preferably consists of a wound, band-shaped prepreg which has been hardened after winding, is inserted deep into the slots 15, 16 until the ends of the loop are penetrated by the axis z.
- the preload is then released and the arrester active part is finished.
- By turning the pressure screw 4 additional contact and holding force can be generated in the arrester active part.
- a loop can also be used which is formed during the manufacture of the surge arrester.
- a band loaded with a prestressing force is wound around the active conductor part and placed on the two contact surfaces 17, 18.
- 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 spring elements 9 may therefore be omitted.
- Such a tape is preferably a prepreg, in particular based on glass fibers and epoxy.
- a prepreg has a good adhesive effect.
- a loop wound from a pre-tensioned prepreg is therefore also after winding stable without additional fastening device and can then be cured at elevated temperatures. This then forms a loop consisting of glass fibers and a hardened plastic matrix embedding the glass fibers.
- the grooves of the current transfer elements 14 also nestle against the end faces of the varistor element 8 and the pressure plates 10, 13.
- the penetration of liquid insulating material between the individual parts in the current path is avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9730723T SI0810613T1 (sl) | 1996-06-01 | 1997-04-14 | Prenapetostni odvodnik |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19622140 | 1996-06-01 | ||
DE19622140A DE19622140A1 (de) | 1996-06-01 | 1996-06-01 | Überspannungsableiter |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0810613A2 true EP0810613A2 (fr) | 1997-12-03 |
EP0810613A3 EP0810613A3 (fr) | 1998-07-22 |
EP0810613B1 EP0810613B1 (fr) | 2005-10-26 |
Family
ID=7795952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97810222A Expired - Lifetime EP0810613B1 (fr) | 1996-06-01 | 1997-04-14 | Limiteur de surtension |
Country Status (17)
Country | Link |
---|---|
US (1) | US5942968A (fr) |
EP (1) | EP0810613B1 (fr) |
JP (1) | JP3951255B2 (fr) |
KR (1) | KR100453028B1 (fr) |
CN (1) | CN1100327C (fr) |
AU (1) | AU713453B2 (fr) |
BR (1) | BR9703423A (fr) |
CA (1) | CA2202967C (fr) |
CZ (1) | CZ293795B6 (fr) |
DE (2) | DE19622140A1 (fr) |
ES (1) | ES2252772T3 (fr) |
HR (1) | HRP970302B1 (fr) |
HU (1) | HU221226B1 (fr) |
PL (1) | PL183048B1 (fr) |
RU (1) | RU2172535C2 (fr) |
SI (1) | SI0810613T1 (fr) |
ZA (1) | ZA973633B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999049477A1 (fr) * | 1998-03-25 | 1999-09-30 | Abb Hochspannungstechnik Ag | Parasurtension |
US6594133B1 (en) | 1999-09-07 | 2003-07-15 | Abb Schweiz Ag | Surge arrester |
US7369390B2 (en) | 2004-06-04 | 2008-05-06 | Abb Technology Ag | Gas-insulated surge arrester |
WO2012098250A1 (fr) | 2011-01-21 | 2012-07-26 | Tridelta Überspannungsableiter Gmbh | Limiteur de tension à configuration en cage |
US20230073865A1 (en) * | 2020-01-22 | 2023-03-09 | Eaton Intelligent Power Limited | Flameproof surge protector |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010069475A (ko) * | 2001-03-27 | 2001-07-25 | 서형권 | 피뢰기 |
EP1523792B1 (fr) * | 2002-07-19 | 2011-05-11 | Epcos Ag | Element de protection pour deriver des surtensions et utilisation correspondante |
EP1447822B1 (fr) * | 2003-02-12 | 2009-09-09 | ABB Technology AG | Composant active pour limiteur de surtension |
EP1603140A1 (fr) * | 2004-06-04 | 2005-12-07 | ABB Technology AG | Composant actif pour limiteur de surtension encapsulé |
EP1936639B1 (fr) * | 2006-12-22 | 2009-07-15 | ABB Technology Ltd | Limiteur de Surtension |
KR100858966B1 (ko) * | 2007-09-21 | 2008-09-17 | 삼현씨앤에스 주식회사 | 배리스터 장치 |
RU2474901C1 (ru) * | 2011-09-06 | 2013-02-10 | Закрытое акционерное общество "Завод энергозащитных устройств" | Способ изготовления оксидно-цинковых варисторов |
EP2600358B1 (fr) * | 2011-12-02 | 2014-04-30 | ABB Technology AG | Parafoudre |
EP2953141B1 (fr) * | 2014-06-04 | 2016-09-28 | ABB Schweiz AG | Module de limiteur de surtension et limiteur de surtension |
EP3144942B1 (fr) * | 2015-09-18 | 2018-02-21 | Siemens Aktiengesellschaft | Dispositif de protection contre les surtensions |
JP6350611B2 (ja) | 2016-08-10 | 2018-07-04 | 株式会社明電舎 | 避雷器 |
JP2022052786A (ja) * | 2020-09-24 | 2022-04-05 | 株式会社明電舎 | 避雷器 |
CN113299445A (zh) * | 2021-05-28 | 2021-08-24 | 固力发电气有限公司 | 一种高压复合支柱绝缘子 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0614198A2 (fr) * | 1993-03-04 | 1994-09-07 | ABB Management AG | Parafoudre |
EP0683496A1 (fr) * | 1994-05-13 | 1995-11-22 | Asea Brown Boveri Ab | Parafoudre |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447118A (en) * | 1966-08-16 | 1969-05-27 | Westinghouse Electric Corp | Stacking module for flat packaged electrical devices |
US3936785A (en) * | 1974-04-01 | 1976-02-03 | Cook Electric Company | Gas tube arrester subassembly |
US3987343A (en) * | 1974-05-22 | 1976-10-19 | Joslyn Mfg. And Supply Co. | Surge protector |
EP0000614B1 (fr) * | 1977-06-17 | 1981-11-25 | Chisso Corporation | La préparation de dérivés de dichlorosilane |
US5138517A (en) * | 1984-12-14 | 1992-08-11 | Hubbell Incorporated | Polymer housed electrical assemblies using modular construction |
GB8527548D0 (en) * | 1985-11-08 | 1985-12-11 | Raychem Gmbh | Electrical equipment |
FR2646957B1 (fr) * | 1989-05-12 | 1994-02-04 | Sediver Ste Europ Isolateurs Ver | Enveloppe etanche a base d'enroulement filamentaire, et parafoudre composite en faisant application |
SE504075C2 (sv) * | 1994-08-29 | 1996-11-04 | Asea Brown Boveri | Ventilavledare |
-
1996
- 1996-06-01 DE DE19622140A patent/DE19622140A1/de not_active Withdrawn
-
1997
- 1997-04-14 SI SI9730723T patent/SI0810613T1/sl unknown
- 1997-04-14 DE DE59712450T patent/DE59712450D1/de not_active Expired - Fee Related
- 1997-04-14 EP EP97810222A patent/EP0810613B1/fr not_active Expired - Lifetime
- 1997-04-14 ES ES97810222T patent/ES2252772T3/es not_active Expired - Lifetime
- 1997-04-17 CA CA002202967A patent/CA2202967C/fr not_active Expired - Fee Related
- 1997-04-25 ZA ZA9703633A patent/ZA973633B/xx unknown
- 1997-05-07 US US08/852,741 patent/US5942968A/en not_active Expired - Fee Related
- 1997-05-16 KR KR1019970018829A patent/KR100453028B1/ko not_active IP Right Cessation
- 1997-05-28 PL PL97320246A patent/PL183048B1/pl not_active IP Right Cessation
- 1997-05-29 CZ CZ19971664A patent/CZ293795B6/cs not_active IP Right Cessation
- 1997-05-29 HR HR970302A patent/HRP970302B1/xx not_active IP Right Cessation
- 1997-05-30 RU RU97108561/09A patent/RU2172535C2/ru not_active IP Right Cessation
- 1997-05-30 HU HU9700976A patent/HU221226B1/hu not_active IP Right Cessation
- 1997-05-30 JP JP14230097A patent/JP3951255B2/ja not_active Expired - Fee Related
- 1997-05-30 CN CN97111462A patent/CN1100327C/zh not_active Expired - Fee Related
- 1997-06-02 AU AU24663/97A patent/AU713453B2/en not_active Ceased
- 1997-06-02 BR BR9703423A patent/BR9703423A/pt not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0614198A2 (fr) * | 1993-03-04 | 1994-09-07 | ABB Management AG | Parafoudre |
EP0683496A1 (fr) * | 1994-05-13 | 1995-11-22 | Asea Brown Boveri Ab | Parafoudre |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999049477A1 (fr) * | 1998-03-25 | 1999-09-30 | Abb Hochspannungstechnik Ag | Parasurtension |
AU745480B2 (en) * | 1998-03-25 | 2002-03-21 | Abb Schweiz Ag | Surge diverter |
US6594133B1 (en) | 1999-09-07 | 2003-07-15 | Abb Schweiz Ag | Surge arrester |
US7369390B2 (en) | 2004-06-04 | 2008-05-06 | Abb Technology Ag | Gas-insulated 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 |
US20230073865A1 (en) * | 2020-01-22 | 2023-03-09 | Eaton Intelligent Power Limited | Flameproof surge protector |
US11973324B2 (en) * | 2020-01-22 | 2024-04-30 | Eaton Intelligent Power Limited | Flameproof surge protector |
Also Published As
Publication number | Publication date |
---|---|
JP3951255B2 (ja) | 2007-08-01 |
HUP9700976A3 (en) | 2000-03-28 |
KR980005073A (ko) | 1998-03-30 |
HU221226B1 (en) | 2002-08-28 |
CA2202967C (fr) | 2005-03-29 |
SI0810613T1 (sl) | 2006-04-30 |
EP0810613A3 (fr) | 1998-07-22 |
PL320246A1 (en) | 1997-12-08 |
KR100453028B1 (ko) | 2004-12-17 |
DE19622140A1 (de) | 1997-12-04 |
JPH1070013A (ja) | 1998-03-10 |
HUP9700976A2 (hu) | 1998-04-28 |
RU2172535C2 (ru) | 2001-08-20 |
AU713453B2 (en) | 1999-12-02 |
BR9703423A (pt) | 1998-09-08 |
CZ166497A3 (cs) | 1998-12-16 |
PL183048B1 (pl) | 2002-05-31 |
AU2466397A (en) | 1997-12-11 |
CA2202967A1 (fr) | 1997-12-01 |
CZ293795B6 (cs) | 2004-08-18 |
CN1100327C (zh) | 2003-01-29 |
HRP970302A2 (en) | 1998-02-28 |
ZA973633B (en) | 1997-11-25 |
ES2252772T3 (es) | 2006-05-16 |
CN1170939A (zh) | 1998-01-21 |
HU9700976D0 (en) | 1997-07-28 |
US5942968A (en) | 1999-08-24 |
HRP970302B1 (en) | 2004-10-31 |
EP0810613B1 (fr) | 2005-10-26 |
DE59712450D1 (de) | 2005-12-01 |
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