EP4173093A1 - Leiteranordnung - Google Patents
LeiteranordnungInfo
- Publication number
- EP4173093A1 EP4173093A1 EP21783405.0A EP21783405A EP4173093A1 EP 4173093 A1 EP4173093 A1 EP 4173093A1 EP 21783405 A EP21783405 A EP 21783405A EP 4173093 A1 EP4173093 A1 EP 4173093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- surge arrester
- conductor
- support
- conductor arrangement
- arrangement according
- 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
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
- H01T4/02—Details
-
- 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; Arresters
-
- 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
- H01T4/04—Housings
-
- 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
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
-
- 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
-
- 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; Arresters
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
- H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut
Definitions
- the invention relates to a conductor arrangement.
- a surge arrester is provided to limit electrical surges, such as those that can occur in the event of a lightning strike.
- the surge arrester can be a long and heavy component that needs to be supported. When using a permanently installed electrical conductor, the electrical conductor can support the surge arrester. If the surge arrester is not supported, this can cause the surge arrester to deform due to its own weight, which can damage the surge arrester when the surge arrester is transported and shorten the service life of the surge arrester.
- Switchable surge arresters exist in which an electrical connection can be separated from the electrical conductor to the surge arrester. Separating the electrical connection from the electrical conductor to the surge arrester can be relevant, for example, in order to carry out a high-voltage test on the electrical conductor. However, when the electrical connection from the electrical conductor to the surge arrester is severed, the surge arrester cannot be supported by the electrical conductor. This can lead to a reduction in the service life of the surge arrester.
- the object of the invention is therefore to create a conductor arrangement with a surge arrester in which a surge arrester has a long service life.
- the conductor arrangement according to the invention has an electrical conductor, a surge arrester which has a longitudinal direction, an operating state in which the surge arrester is set up, an occurring in the electrical conductor to limit overvoltage, and has a test state in which the surge arrester is not set up to limit the overvoltage, and an electrically insulating supporter which is arranged in the longitudinal direction between the surge arrester and the electrical conductor, the supporter being separated from the electrical conductor is supported and the surge arrester is supported by the supporter.
- the surge arrester is supported indirectly by the electrical conductor both in the operating state and in the test state. As a result, damage during transport of the conductor arrangement can be avoided and the service life of the surge arrester is long.
- the surge arrester preferably has a conductor connection which is at least partially displaceable relative to the remaining surge arrester and is thus set up to switch the surge arrester between the operating state and the test state, the conductor connection being further from the remaining surge arrester in the operating state than in the test state is pending.
- the surge arrester can be brought into the operating state by shifting the conductor connection in the direction of the electrical conductor and can be brought into the test state by shifting the conductor connection away from the first conductor.
- the conductor arrangement has a movable connection, by means of which the surge arrester and the support are coupled to one another in such a way that the support can be displaced in the longitudinal direction relative to the surge arrester. It is particularly preferred here that a gap is provided in the longitudinal direction between the surge arrester and the support. As a result, thermal expansion, for example of the conductor, the supporters and / or the surge arrester, are compensated by the gap in the longitudinal direction is narrower. As a result, mechanical stresses in the conductor arrangement during thermal expansion can be avoided, as a result of which the service life of the conductor arrangement is particularly long.
- a flexible ring is arranged in the recess between the support and the surge arrester, the axis of rotation of which is essentially parallel to the longitudinal direction.
- the surge arrester has a contact hood which is arranged on the longitudinal end of the surge arrester facing the electrical conductor and in which the movable connection and in particular the recess is arranged.
- the contact hood can be electrically conductive and, for this purpose, can have a metal, for example.
- the contact cap has a geometry that leads to a reduction in the electrical field strengths to the electrical conductor and to grounding.
- the contact cover can have rounded corners, for example.
- the conductor arrangement preferably has an electrically conductive component which is set up to connect the support to the surge arrester, in particular to the contact hood, in an electrically conductive manner.
- the support can have an electrically conductive contact piece which makes contact with the electrically conductive component. The partial discharges at the contact piece can thus be avoided, as a result of which the service life of the conductor arrangement is particularly long.
- the electrically conductive component is particularly preferably a Contact spring, in particular a helical spring, or a socket that has inwardly projecting lamellae.
- the conductor arrangement has a fixed connection by means of which the support is fixedly attached to the electrical conductor.
- the conductor arrangement has an electrically conductive contact disk which is arranged in the longitudinal direction between the support and the electrical conductor and via which the electrical conductor is electrically conductively connected to the surge arrester in the operating state. It is conceivable that the contact disc makes contact with the electrical conductor. It is particularly preferred that the support is firmly screwed to the contact disk. It is also preferred that the contact disc is firmly attached to the electrical conductor. This can be achieved, for example, by screwing the contact disk to the electrical conductor. The fixed connection can be formed, for example, by screwing the contact disk to the support and screwing the contact disk to the electrical conductor.
- the surge arrester particularly preferably has a conductor connection which is arranged at least partially displaceably relative to the remaining surge arrester and is thus set up to switch the surge arrester between the operating state and the test state, the conductor connection being further from the remaining surge arrester in the operating state than in the test condition, the contact disk having a contact recess and the conductor connection having a contact pin which is arranged in the contact recess in the operating condition and is arranged outside the contact recess in the test condition. Since the conductor connection makes contact with the contact disc, the conductor connection and the electrode are connected to one another in an electrically conductive manner.
- the surge arrester preferably has a varistor or a plurality of varistors. The majority of the varistors can be connected in series and/or in parallel. In the operating state, the varistor or varistors can be electrically conductively connected to the conductor connection.
- the varistor or varistors can be metal oxide varistors (MOV), for example.
- the conductor arrangement preferably has a housing which encapsulates the electrical conductor, the surge arrester and the support. Such a conductor arrangement is suitable wherever it is not possible to run the electrical conductor as an overhead line, such as in a power station or in a substation.
- the electrical conductor is particularly preferably supported by the housing and/or by a wall which separates two chambers from one another in the housing.
- the invention is explained in more detail below with reference to the attached schematic drawing.
- the figure shows a section through a conductor arrangement.
- a conductor arrangement 1 has an electrical conductor 2, a surge arrester 3, which has a longitudinal direction 12, an operating state in which the surge arrester 3 is set up to limit an overvoltage occurring in the electrical conductor 2, and a Test condition in which the surge arrester 3 is not set up to limit the overvoltage, and an electrically insulating support 6, which is arranged in the longitudinal direction 12 between the surge arrester 3 and the electrical conductor 2, the support 6 being separated from the electrical conductor 2 is supported and the surge absorber 3 is supported by the supporter 6 .
- the surge arrester 3 can have a longitudinal end that faces away from the electrical conductor 2 and is electrically conductively connected to grounding 11 .
- the leader 2 can be set up, for example, to conduct a current with a voltage higher than 1 kV or higher than 100 kV.
- the conductor arrangement 1 can have a fixed connection 6d, by means of which the support 6 is firmly attached to the electrical conductor 2.
- the conductor arrangement 1 can have a contact disk 4 which is arranged in the longitudinal direction 12 between the support 6 and the electrical conductor 2 and via which the electrical conductor 2 is electrically conductively connected to the surge arrester 3 in the operating state.
- the contact disk 4 can have a first end that contacts the electrical conductor 2 and a second end that contacts the support 6 .
- the contact disc 4 can be permanently connected to the electrical conductor 2 .
- the contact disk 4 can be screwed to the electrical conductor 2 .
- the electrical conductor 2 indirectly supports the support 6 via the contact disk 4 .
- the contact disk 4 can first be screwed to the support 6 and then the support disk 4 can be screwed to the electrical conductor 2.
- the surge arrester 3 can have a conductor connection 7 which is at least partially displaceable relative to the remaining surge arrester 3 and is thus set up to switch the surge arrester 3 between the operating state and the test state, with the conductor connection 7 in the operating state protrudes further from the remaining surge arrester 3 than in the test state.
- the conductor connection 7 can have, for example, an electrically conductive contact pin 7a.
- the contact pin 7a In the operating state, the contact pin 7a can contact the contact disk 4 and in particular can be inserted into a contact recess 7b arranged in the contact disk 4, as is also shown in the figure.
- the contact pin 7a may be located outside of the contact recess 7b.
- the ladder- Connection 7 may have a drive 7c arranged to move the contact pin 7a away from the electrical conductor
- the ladder connection can have a drive rod 7d, a hand crank 7e and a translation which is set up to translate a rotation of the hand crank 7e into a longitudinal displacement of the drive rod 7d.
- the drive rod 7d can be coupled to the contact pin 7a in such a way that the longitudinal displacement of the drive rod 7d leads to a longitudinal displacement of the contact pin 7a.
- the conductor arrangement 1 can have a movable connection 6e, by means of which the surge arrester 3 and the support 6 are coupled to one another in such a way that the support 6 can be displaced in the longitudinal direction 12 relative to the surge arrester 3.
- the surge arrester 3 can have a recess 6c, which is arranged on the longitudinal end of the surge arrester 3 facing the electrical conductor 2 and in which a first longitudinal end of the support 6 is arranged.
- a flexible ring 6f can be arranged in the recess 6c between the support 6 and the surge arrester 3 , the axis of rotation of which is essentially parallel to the longitudinal direction 12 .
- the support 6 can be displaced in the longitudinal direction 12 relative to the surge arrester 3 by either the support 6 or the surge arrester 3 sliding on the ring 6f.
- the ring 6f can, for example, have PTFE or consist of PTFE.
- the surge arrester 3 can have a contact hood 5a, which is arranged on the longitudinal end of the surge arrester 3 facing the electrical conductor 2 and in which the recess 6c is arranged.
- the contact hood 5a can be electrically conductive.
- the conductor arrangement 1 can have an electrically conductive component which is set up to connect the support 6 to the surge arrester 3, in particular to the contact point 5a, in an electrically conductive manner.
- the electrically conductive component can be arranged in the recess 6c.
- the electrically conductive component can, for example, contact the contact piece 5b and the surge arrester 3, in particular the contact cover 5a.
- the electrically conductive component can be a contact spring 6g.
- the contact spring 6g can be a helical spring, for example.
- the helical spring can, for example, have no longitudinal end, i. H . in the form of a closed ring.
- the electrically conductive component can be a socket that has inwardly protruding lamellae.
- the first longitudinal end of the support 6 can be accommodated in the socket.
- the axis of rotation of the bushing can be essentially parallel to the longitudinal direction 12 .
- the support 6 can have a support insulator 6a, which is arranged on the longitudinal end of the support 6 facing the electrical conductor 2, and a contact piece 6b, which is arranged on the longitudinal end of the support 6 facing away from the electrical conductor 2.
- the post insulator 6a can be electrically insulating.
- the post insulator 6a can have a resin or consist of the resin, wherein the resin can be a casting resin.
- the post insulator can have a ceramic material or consist of the ceramic material.
- the contact piece 6b can be electrically conductive.
- the contact piece 6b can be arranged in the recess 6c.
- the post insulator 6a can also be attached to its longitudinal end facing away from the electrical conductor 2 in its interior have an electrode, not shown, which is electrically conductively connected to the contact piece 6b. This can prevent partial discharges.
- the surge arrester 3 can have a varistor 5b or a plurality of varistors 5b.
- the varistor 5b or the varistors 5b can be metal oxide varistors (MOV).
- MOV metal oxide varistors
- the varistor 5b or the varistors 5b can be arranged on the longitudinal end of the contact hood 5a facing away from the electrical conductor 2 .
- the longitudinal end of the varistor 5b or of the varistors facing away from the contact hood 5a can be electrically conductively connected to grounding 11 .
- the surge arrester 3 can have an active part 5 in addition to the conductor connection 7, with the active part 5 having the contact hood 5a and the varistor 5b or the varistors 5b.
- the conductor arrangement 1 can have a housing 8 which encapsulates the electrical conductor 2 , the surge arrester 3 and the support 6 .
- the electrical conductor 2 can be supported by the housing 8 and/or by a wall which separates two chambers from one another in the housing 8 .
- the housing 8 can also be part of the grounding 11 .
- the conductor arrangement 1 can have a bushing insulator 9 which is designed to hold the electrical conductor 2 and to insulate it from the housing 8 .
- the feedthrough insulator 9 can have an electrode 9a to which the electrical conductor 2 is attached in an electrically conductive manner.
- the conductor arrangement 1 can have an adapter ring 10 which is screwed between the housing 8 and the bushing insulator 9 , with the bushing insulator 9 insulating the electrical conductor 2 from the adapter ring 10 .
- the electrode 9a may be molded in a resin of the bushing insulator 9 .
- the resin can be an epoxy resin, for example.
- the figure shows that the longitudinal direction 12 is arranged in the horizontal direction. Alternatively, it is also bar that the longitudinal direction 12 has a component in the vertical direction or is arranged in the vertical direction.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020212640.2A DE102020212640A1 (de) | 2020-10-07 | 2020-10-07 | Leiteranordnung |
| PCT/EP2021/075094 WO2022073722A1 (de) | 2020-10-07 | 2021-09-13 | Leiteranordnung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4173093A1 true EP4173093A1 (de) | 2023-05-03 |
| EP4173093C0 EP4173093C0 (de) | 2025-05-21 |
| EP4173093B1 EP4173093B1 (de) | 2025-05-21 |
Family
ID=78032392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21783405.0A Active EP4173093B1 (de) | 2020-10-07 | 2021-09-13 | Leiteranordnung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12451276B2 (de) |
| EP (1) | EP4173093B1 (de) |
| CN (1) | CN116325395A (de) |
| DE (1) | DE102020212640A1 (de) |
| WO (1) | WO2022073722A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023208351A1 (de) | 2023-08-31 | 2025-03-06 | Siemens Energy Global GmbH & Co. KG | Überspannungsableiteranordnung |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642556A (en) * | 1981-02-19 | 1987-02-10 | Pasar, Inc. | Tracing electrical conductors by high-frequency constant-energy-content pulse loading |
| US5272280A (en) * | 1991-06-13 | 1993-12-21 | Northern Telecom Limited | Overvoltage protector assembly |
| DE19622140A1 (de) * | 1996-06-01 | 1997-12-04 | Asea Brown Boveri | Überspannungsableiter |
| JP2000232708A (ja) | 1999-02-09 | 2000-08-22 | Takaoka Electric Mfg Co Ltd | 避雷器 |
| EP2466596B1 (de) * | 2010-12-16 | 2013-08-28 | ABB Research Ltd. | Bauteil mit Überspannungsschutz und Verfahren zu dessen Prüfung |
| EP2846333A1 (de) | 2013-09-09 | 2015-03-11 | Siemens Aktiengesellschaft | Gasisolierter Überspannungsableiter |
| JP6017481B2 (ja) * | 2014-03-05 | 2016-11-02 | ファナック株式会社 | 絶縁抵抗検出機能を備えたモータ駆動装置及びモータの絶縁抵抗検出方法 |
| EP3001430A1 (de) | 2014-09-29 | 2016-03-30 | Siemens Aktiengesellschaft | Überspannungsableitvorrichtung |
| EP3048617B1 (de) | 2015-01-26 | 2020-08-12 | Siemens Aktiengesellschaft | Überspannungsableiter |
| EP3082136B1 (de) | 2015-04-14 | 2017-11-01 | Siemens Aktiengesellschaft | Gasisolierter überspannungsableiter |
| DE102016202329A1 (de) | 2016-02-16 | 2017-08-17 | Siemens Aktiengesellschaft | Überspannungsableiteranordnung |
| JP6595428B2 (ja) * | 2016-09-16 | 2019-10-23 | 株式会社東芝 | 避雷器 |
| CN206611161U (zh) * | 2017-04-06 | 2017-11-03 | 揭慧 | 一种电气工程用快速反应的避雷器 |
| CN207249008U (zh) * | 2017-06-06 | 2018-04-17 | 七星电气股份有限公司 | 一种配电线路过电压保护器试验装置 |
-
2020
- 2020-10-07 DE DE102020212640.2A patent/DE102020212640A1/de not_active Withdrawn
-
2021
- 2021-09-13 WO PCT/EP2021/075094 patent/WO2022073722A1/de not_active Ceased
- 2021-09-13 CN CN202180068525.7A patent/CN116325395A/zh active Pending
- 2021-09-13 US US18/248,265 patent/US12451276B2/en active Active
- 2021-09-13 EP EP21783405.0A patent/EP4173093B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022073722A1 (de) | 2022-04-14 |
| US20230377781A1 (en) | 2023-11-23 |
| US12451276B2 (en) | 2025-10-21 |
| CN116325395A (zh) | 2023-06-23 |
| EP4173093C0 (de) | 2025-05-21 |
| DE102020212640A1 (de) | 2022-04-07 |
| EP4173093B1 (de) | 2025-05-21 |
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