WO2023021033A1 - Parafoudre - Google Patents

Parafoudre Download PDF

Info

Publication number
WO2023021033A1
WO2023021033A1 PCT/EP2022/072859 EP2022072859W WO2023021033A1 WO 2023021033 A1 WO2023021033 A1 WO 2023021033A1 EP 2022072859 W EP2022072859 W EP 2022072859W WO 2023021033 A1 WO2023021033 A1 WO 2023021033A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod
electrically conductive
lightning arrester
component
conductive component
Prior art date
Application number
PCT/EP2022/072859
Other languages
English (en)
Original Assignee
Siemens Energy Global GmbH & Co. KG
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 Energy Global GmbH & Co. KG filed Critical Siemens Energy Global GmbH & Co. KG
Publication of WO2023021033A1 publication Critical patent/WO2023021033A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C8/00—Non-adjustable resistors consisting of loose powdered or granular conducting, or powdered or granular semi-conducting material
    • H01C8/04—Overvoltage protection resistors; Arresters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/60—Detecting; Measuring; Sensing; Testing; Simulating
    • 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
    • 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
    • H01T1/00—Details of spark gaps
    • H01T1/16—Series resistor structurally associated with spark gap

Definitions

  • the present invention relates generally the field of electricity, in particular to a lightning arrester.
  • An existing lightning arrester uses a separate isolation switch.
  • the separate isolation switch is added to control the connection and disconnection of the lightning arrester.
  • the addition of the isolation switch to onsite equipment will inevitably increase construction costs.
  • the lightning arrester comprises: a columnar housing; a first electrically conductive component, the first electrically conductive component being disposed in the interior of the columnar housing and configured to be in communication with the outside of the lightning arrester; a second electrically conductive component, the second electrically conductive component being disposed in the interior of the columnar housing and spaced apart from the first electrically conductive component, the second electrically conductive component being connected to a resistor disk; and a rod-shaped switching component, the rod-shaped switching component being configured to enable the lightning arrester to switch between a connected configuration and a disconnected configuration; one end of the rod-shaped switching component is disposed in the interior of the columnar housing, and another end of the rodshaped switching component is disposed outside the columnar housing; in the connected configuration, the first electrically conductive component and the second electrically conductive component are connected to each other via the rod-shaped switching component; in the disconnected configuration, the first electrically conductive component and the second electrically conductive component
  • the rod-shaped switching component comprises an electrically conductive rod and an operating rod which are connected to each other in an extension direction thereof, wherein the length of the electrically conductive rod is greater than the distance between the first electrically conductive component and the second electrically conductive component, so that in the connected configuration, two ends of the electrically conductive rod are respectively connected to the first electrically conductive component and the second electrically conductive component; and wherein at least part of the operating rod is disposed outside the columnar housing.
  • the rod-shaped switching component further comprises an insulating rod connected between the electrically conductive rod and the operating rod.
  • the rod-shaped switching component is configured to be able to reciprocate in the extension direction.
  • the first electrically conductive component is configured to have a first receiving hole extending in the extension direction, for receiving one end of the electrically conductive rod of the rod-shaped switching component, and the second electrically conductive component is configured to have a second penetrating hole extending in the extension direction, such that the rod-shaped switching component reciprocates through the second penetrating hole.
  • recesses are respectively provided in a hole wall of the first receiving hole and a hole wall at the end of the second penetrating hole that is close to the first electrically conductive component, for receiving contact elements, so that in the connected configuration, the two ends of the electrically conductive rod respectively contact the corresponding contact elements.
  • the lightning arrester further comprises an operating handle, disposed outside the columnar housing and fixed to the end of the operating rod that is located outside the columnar housing; when the lightning arrester is in the connected configuration, the operating handle is fixed to the columnar housing.
  • the columnar housing has an end wall in an axial direction thereof, and the rod-shaped switching component extends to the outside of the columnar housing through an end wall penetrating hole provided in the end wall, wherein dust rings fitted round the rod-shaped switching component are respectively fixed in the end wall penetrating hole and on two opposite sides of the end wall, and a bushing and at least one sealing ring fitted round the rod-shaped switching component are fixed in the end wall penetrating hole, the bushing and the at least one sealing ring being located between the two dust rings.
  • the lightning arrester further comprises an operating box which is disposed outside the columnar housing and fixed to the columnar housing; the operating rod extends to the outside of the operating box through the interior of the operating box, and an operating handle is fixed to the end of the operating rod that is located outside the operating box.
  • a guide rod extending in a direction parallel to the extension direction of the rod-shaped switching component, and a slide bearing which is fitted round the guide rod and movable along the guide rod, the slide bearing being fixed to the operating rod in order to move together with the operating rod.
  • a position sensor is provided in the interior of the operating box, the position sensor being configured to sense, and send to a user, the position of the operating rod.
  • connection and disconnection of the lightning arrester without dismantling the lightning arrester is achieved by the simple structural design inside the lightning arrester, the voltage tolerance of the lightning arrester after disconnection is ensured, and the sealing effect when the rod-shaped switching component is moving is improved.
  • Fig. 1 is a sectional view that shows schematically the lightning arrester according to a first embodiment of the present invention.
  • Fig. 2A is a three-dimensional drawing that shows schematically the first electrically conductive component according to the present invention.
  • Fig. 2B is a three-dimensional sectional view that shows schematically the first electrically conductive component according to the present invention.
  • Fig. 3A is a three-dimensional drawing that shows schematically the second electrically conductive component according to the present invention.
  • Fig. 3B is a three-dimensional sectional view that shows schematically the second electrically conductive component according to the present invention.
  • Fig. 4A is a view that shows schematically the rod-shaped switching component according to the present invention.
  • Fig. 4B is a three-dimensional sectional view that shows schematically part of the rod-shaped switching component in Fig. 4A when the lightning arrester is in the connected configuration .
  • Figs. 5A and 5B are a side view and a sectional view, respectively, which show schematically the contact element according to the present invention.
  • Fig. 6 is a partial three-dimensional sectional view that shows schematically the lightning arrester according to the first embodiment of the present invention.
  • Fig. 7 is a three-dimensional drawing that shows schematically the end wall of the lightning arrester according to the present invention.
  • Fig. 8 is an enlarged drawing that shows schematically part A in Fig. 1.
  • Fig. 9 is a sectional view that shows schematically the lightning arrester according to a second embodiment of the present invention.
  • Fig. 10 is a sectional view that shows schematically the operating box of the lightning arrester in Fig. 9.
  • the lightning arrester 100 generally comprises a columnar housing 1, a first electrically conductive component 2, a second electrically conductive component 3 and a rod-shaped switching component 5.
  • the first electrically conductive component 2 is disposed in the interior of the columnar housing 1 and configured to be in communication with the outside of the lightning arrester 100.
  • the second electrically conductive component 3 is disposed in the interior of the columnar housing 1 and spaced apart from the first electrically conductive component 2, e.g. spaced apart from the first electrically conductive component 2 in the axial direction X of the columnar housing 1.
  • the second electrically conductive component 3 is connected to a resistor disk 4, the resistor disk 4 likewise being disposed in the interior of the columnar housing 1 of the lightning arrester 100.
  • the rod-shaped switching component 5 is configured to enable the lightning arrester 100 to switch between a connected configuration and a disconnected configuration.
  • one end of the rod-shaped switching component 5 is disposed in the interior of the columnar housing 1, and the other end of the rod-shaped switching component 5 is disposed outside the columnar housing 1, for a user to operate.
  • the first electrically conductive component 2 and second electrically conductive component 3 are connected to each other via the rod-shaped switching component 5.
  • the disconnected configuration the first electrically conductive component 2 and second electrically conductive component 3 are disconnected from each other by the user pulling the other end of the rod-shaped switching component 5 outward so that the rod-shaped switching component 5 disengages from the first electrically conductive component 2.
  • switching of the lightning arrester 100 between the connected configuration and the disconnected configuration can be achieved by the user operating (e.g. manually operating) the other end of the rod-shaped switching component 5 so that the rod-shaped switching component 5 reciprocates .
  • the rod-shaped switching component 5 may comprise an electrically conductive rod 51 and an operating rod 53 which are connected to each other in the extension direction Y thereof.
  • the electrically conductive rod 51 may be made of an electrically conductive material such as metal, while the operating rod 53 may be made of an insulating material.
  • the rod-shaped switching component 5 may further comprise an insulating rod 52 connected between the electrically conductive rod 51 and the operating rod 53, as shown in Figs. 1 and 4A.
  • the insulating rod 52 may be made of an insulating material.
  • the electrically conductive rod 51 may be made of an electrically conductive material such as metal
  • the operating rod 53 may be made of an insulating material.
  • the rod-shaped switching component 5 may further comprise an insulating rod 52 connected between the electrically conductive rod 51 and the operating rod 53, as shown in Figs. 1 and 4A.
  • the insulating rod 52 may be made of an insulating material.
  • the electrically conductive rod 51 and operating rod 53 may be plugged together.
  • the electrically conductive rod 51 and insulating rod 52 may be plugged together, and similarly, the insulating rod 52 and operating rod 53 may also be connected to each other in a similar manner.
  • the manner in which the electrically conductive rod 51 and operating rod 53 (and the insulating rod 52 if present) are connected is not limited to this; they may even be integrally formed.
  • one end of the rodshaped switching component 5 is a free end of the electrically conductive rod 51, and the other end of the rod-shaped switching component 5 is a free end of the operating rod 53.
  • the length of the electrically conductive rod 51 is greater than the distance between the first electrically conductive component 2 and the second electrically conductive component 3, so that in the connected configuration, the two ends of the electrically conductive rod 51 are respectively connected to the first electrically conductive component 2 and the second electrically conductive component 3.
  • the first electrically conductive component 2 and a component connected thereto and the second electrically conductive component 3 and a component connected thereto are in communication via the electrically conductive rod 51.
  • the operating rod 53 may be disposed in the interior of the columnar housing 1, at least part of the operating rod 53 is disposed outside the columnar housing 1 so as to be operated by the user, and the remainder of the operating rod 53 is disposed in the interior of the columnar housing 1.
  • the rod-shaped switching component 5 may be configured to be able to reciprocate in the extension direction Y thereof, as a result of the user operating the other end of the operating rod 53, such that the free end of the electrically conductive rod 51 connects with or disengages from the first electrically conductive component 2, thereby connecting or disconnecting the lightning arrester 100.
  • Figs. 2A and 2B show details of the first electrically conductive component 2, wherein the first electrically conductive component 2 is configured to have a first receiving hole 21 extending in the extension direction Y of the rod-shaped switching component 5, for receiving one end, i.e. the free end, of the electrically conductive rod 51 of the rod-shaped switching component 5.
  • the second electrically conductive component 3 is configured to have a second penetrating hole 31 extending in the extension direction Y of the rod-shaped switching component 5, such that the rod-shaped switching component 5 reciprocates through the second penetrating hole 31.
  • the first electrically conductive component 2 and second electrically conductive component 3 can be connected to each other using the electrically conductive rod 51.
  • recesses are respectively provided in a hole wall of the first receiving hole 21 and a hole wall at the end of the second penetrating hole 31 that is close to the first electrically conductive component 2, for receiving contact elements 6 as shown in Figs. 5A and 5B, so that in the connected configuration, the two ends of the electrically conductive rod 51 respectively contact the corresponding contact elements 6, and are in communication with the first electrically conductive component 2 and the second electrically conductive component 3 via the contact elements 6.
  • the lightning arrester 100 may further comprise an operating handle 7, disposed outside the columnar housing 1 and fixed to the end of the operating rod 53 that is located outside the columnar housing 1 (i.e. the free end of the operating rod 53), for the user to operate.
  • the operating handle 7 is fixed to the columnar housing 1, e.g. fastened to the columnar housing 1 by screws 8, thereby making the connected configuration stable to prevent accidental disconnection of the lightning arrester 100.
  • the columnar housing 1 has an end wall 11 in the axial direction X thereof.
  • the end wall 11 may be part of the columnar housing 1, but is not limited to this.
  • the columnar housing 1 is open at the end where the end wall is located, and closed by an independent end cap; thus, the end wall 11 may also be an independent end cap.
  • the rod-shaped switching component 5 may extend to the outside of the columnar housing 1 through an end wall penetrating hole 111 provided in the end wall 11.
  • dust rings 112 fitted round the rod-shaped switching component 5 may be respectively fixed in the end wall penetrating hole 111 and on two opposite sides of the end wall 11, and a bushing 113 and at least one sealing ring 114 fitted round the rod-shaped switching component 5 may be fixed in the end wall penetrating hole 111, the bushing 113 and at least one sealing ring 114 being located between the two dust rings 112.
  • This arrangement enables good sealing to be achieved between the inside and outside of the lightning arrester 100 when the rod-shaped switching component 5 reciprocates.
  • the presence of the bushing 113 can also guide the reciprocation of the rodshaped switching component 5 in the extension direction Y thereof, to prevent deviation thereof.
  • a lightning arrester 200 according to a second embodiment of the present invention is described below.
  • the structure of the lightning arrester 200 is essentially the same as the structure of the lightning arrester 100, the difference being that, as shown in Figs. 9 and 10, the lightning arrester 200 further comprises an operating box 9 which is disposed outside the columnar housing 1 and fixed to the columnar housing 1.
  • the operating rod 53 extends to the outside of the operating box 9 through the interior of the operating box 9, and an operating handle 7 is fixed to the end of the operating rod 53 that is located outside the operating box 9, for the user to operate.
  • a guide rod 91 extending in a direction parallel to the extension direction Y of the rodshaped switching component 5, and a slide bearing 92 which is fitted round the guide rod 91 and movable along the guide rod 91.
  • the slide bearing 92 is fixed to the operating rod 53 in order to move together with the operating rod 53.
  • This arrangement also makes it possible to guide the reciprocation of the rod-shaped switching component 5, to prevent deviation thereof.
  • a position sensor 93 may also be provided in the interior of the operating box 9. The position sensor 93 is configured to sense, and send to the user, the position of the operating rod 53, so that the user knows clearly which configuration the lightning arrester 200 is in.
  • connection and disconnection of the lightning arrester is achieved by the simple structural design inside the lightning arrester, without the need to dismantle the lightning arrester (e.g. by opening a side cover 10 to manually connect or disconnect the lightning arrester) and without the need to use an additional isolation switch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Thermistors And Varistors (AREA)

Abstract

La présente invention concerne un parafoudre, comprenant : un boîtier colonnaire ; un premier composant électriquement conducteur, disposé à l'intérieur du boîtier colonnaire et conçu pour être en communication avec l'extérieur du parafoudre ; un second composant électriquement conducteur, disposé à l'intérieur du boîtier colonnaire et espacé du premier composant électriquement conducteur, le second composant électriquement conducteur étant connecté à un disque de résistance ; et un élément de commutation en forme de tige, configuré pour permettre au parafoudre de commuter entre une configuration connectée et une configuration déconnectée ; une extrémité du composant de commutation en forme de tige étant disposée à l'intérieur du boîtier colonnaire et une autre extrémité étant disposée à l'extérieur du boîtier colonnaire ; dans la configuration connectée, le premier composant électriquement conducteur et le second composant électriquement conducteur sont reliés l'un à l'autre par l'intermédiaire du composant de commutation en forme de tige ; dans la configuration déconnectée, le premier composant électriquement conducteur et le second composant électriquement conducteur sont déconnectés l'un de l'autre par l'utilisateur tirant l'autre extrémité du composant de commutation en forme de tige vers l'extérieur de telle sorte que le composant de commutation en forme de tige se sépare du premier composant électriquement conducteur. Grâce à cet agencement, la connexion et la déconnexion du parafoudre peuvent être commandées de manière structurellement simple et à faible coût.
PCT/EP2022/072859 2021-08-16 2022-08-16 Parafoudre WO2023021033A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110938097.0A CN113451980A (zh) 2021-08-16 2021-08-16 避雷器
CN202110938097.0 2021-08-16

Publications (1)

Publication Number Publication Date
WO2023021033A1 true WO2023021033A1 (fr) 2023-02-23

Family

ID=77818697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/072859 WO2023021033A1 (fr) 2021-08-16 2022-08-16 Parafoudre

Country Status (2)

Country Link
CN (1) CN113451980A (fr)
WO (1) WO2023021033A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000232708A (ja) * 1999-02-09 2000-08-22 Takaoka Electric Mfg Co Ltd 避雷器
CN202650949U (zh) * 2012-05-28 2013-01-02 无锡恒驰电器制造有限公司 气体开关设备的轴向密封装置
WO2015044265A1 (fr) * 2013-09-30 2015-04-02 Siemens Aktiengesellschaft Dispositif de protection contre les surtensions
EP3208819A1 (fr) * 2016-02-16 2017-08-23 Siemens Aktiengesellschaft Ensemble de circuits électriques
EP3514899A1 (fr) * 2016-09-16 2019-07-24 Kabushiki Kaisha Toshiba Parafoudre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387111A (ja) * 1986-09-25 1988-04-18 日新電機株式会社 ガス絶縁電気機器用避雷装置
JPH08265925A (ja) * 1995-03-23 1996-10-11 Meidensha Corp ガス絶縁開閉装置
EP3001430A1 (fr) * 2014-09-29 2016-03-30 Siemens Aktiengesellschaft Dispositif paratonnerre
DE102016202329A1 (de) * 2016-02-16 2017-08-17 Siemens Aktiengesellschaft Überspannungsableiteranordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000232708A (ja) * 1999-02-09 2000-08-22 Takaoka Electric Mfg Co Ltd 避雷器
CN202650949U (zh) * 2012-05-28 2013-01-02 无锡恒驰电器制造有限公司 气体开关设备的轴向密封装置
WO2015044265A1 (fr) * 2013-09-30 2015-04-02 Siemens Aktiengesellschaft Dispositif de protection contre les surtensions
EP3208819A1 (fr) * 2016-02-16 2017-08-23 Siemens Aktiengesellschaft Ensemble de circuits électriques
EP3514899A1 (fr) * 2016-09-16 2019-07-24 Kabushiki Kaisha Toshiba Parafoudre

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