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WO2017141060A1 - Module de commutation combiné de déconnexion et de mise à la terre pour un appareillage de commutation à isolation gazeuse - Google Patents

Module de commutation combiné de déconnexion et de mise à la terre pour un appareillage de commutation à isolation gazeuse Download PDF

Info

Publication number
WO2017141060A1
WO2017141060A1 PCT/HR2016/000007 HR2016000007W WO2017141060A1 WO 2017141060 A1 WO2017141060 A1 WO 2017141060A1 HR 2016000007 W HR2016000007 W HR 2016000007W WO 2017141060 A1 WO2017141060 A1 WO 2017141060A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
earthing
module
contact
contact pin
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.)
Ceased
Application number
PCT/HR2016/000007
Other languages
English (en)
Inventor
Vjekoslav MARENIC
Marian BABIC
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.)
Koncar Aparati i Postrojenja doo
Original Assignee
Koncar Elektricni Visokonaponski Aparati dd
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 Koncar Elektricni Visokonaponski Aparati dd filed Critical Koncar Elektricni Visokonaponski Aparati dd
Priority to PCT/HR2016/000007 priority Critical patent/WO2017141060A1/fr
Publication of WO2017141060A1 publication Critical patent/WO2017141060A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H01H31/003—Earthing switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0088—Details of rotatable shafts common to more than one pole or switch unit

Definitions

  • the invention discloses combined disconnecting-earthing switching module, with three working positions, used in a gas-insulated switchgear (GIS) . Therefore, the invention's technical field may be regarded as an improvement in gas/air break switches for high tension without arc-extinguishing or arc-preventing means; specifically used for disconnecting or earthing the system and enclosed in, or structurally associated with, metal casing such as GIS.
  • GIS gas-insulated switchgear
  • one object of the invention is to provide an improved combined disconnecting-earthing switching module for a gas-insulated switchgear that is widely applicable, compact and reliable in operation due to the minimum amount of elements used to achieve the technical effect.
  • the first technical problem solved with the present invention is the construction of compact, combined disconnecting-earthing switching module where movement direction of contact pin and earthing pin forms the right angle, while having only three elements within the said module. These elements are: already mentioned contact pin and earthing pin; and specially constructed transmission means that engage and lock said pins in desired working positions. Considering the fact that the desired technical effect is produced without levers or gears within the module, it should be emphasised that the disclosed construction is gravity independent mechanism where the module functionality is flawless despite the module's spatial orientation. Last feature allows the mentioned module to have a wide range of implementation capabilities within already mounted GIS devices considering the fact that the geometrical scaling of the disclosed module is straightforward.
  • Second technical problem solved with the present invention is that the disclosed solution offers standard three working positions mechanism.
  • First position when contact pin is inserted into GIS fixed contact formed on its bus-conductor while the earthing pin is locked within the module disclosed in the invention.
  • Second position when contact pin and earthing pin are booth locked to the module disclosed by the invention.
  • Third position when contact pin is locked to the module disclosed by the invention while earthing pin is inserted into GIS earthing fixed contact.
  • Such module should provide contact, earthing and neutral position for the high-voltage conductor apart from the main switching device, i.e. chamber, equipped with the arc-extinguishing or arc-preventing means.
  • Moving contacts are powered in a complex manner via curved links attached to the moving part that consists of levers hinged to one of movable contacts, and the engaging pins are engaged by one of cam grooves, as obvious from the corresponding figures.
  • the disclosed invention is even more compact then the cited prior art, with considerably less elements used to achieve the same functionality.
  • the present invention discloses a combined disconnecting-earthing switching module for a gas-insulated switchgear.
  • This module has casing which enclose contact pin and earthing pin and transmission means for operating said pins.
  • Contact pin is used to electrically connect or disconnect said module with a bus conductor over the contact path.
  • Earthing pin is used to electrically connect or disconnect said module with an earthing fixed contact over the earthing path.
  • Bus conductor and earthing fixed contact belong to the GIS where said module is fixed via electrically conductive support.
  • Transmission means is cylindrically shaped object and situated within the module. It is capable to rotate around the axis that is perpendicular to the plane in which pins slides.
  • the transmission means has an operation shaft insertion place for providing external operation power to the module, smooth outer surface that is partially equipped with a nose having engaging pin for engaging or disengaging the movable pins.
  • the angle between the contact pin movement direction and the earthing pin movement direction is the right angle in order to minimise the module space consumption.
  • Engaging pin is capable of engaging or disengaging one of said pins at the time via contact pin engaging slot or earthing pin engaging slot respectively that are formed on the contact pin engaging part or earthing pin engaging part.
  • Transmission means and its engaging pin is rotating within the angle range [-90°, +90°] measured from the intersection point of said pins movement directions. Cylindrical outer surface is capable to locks one or both non-engaged pins via corresponding pin recessions in disconnecting position within the said module.
  • the disclosed module is forming three different working positions: first position, when contact pin is fully inserted into fixed contact of the GIS bus conductor and earthing pin is locked within the module with cylindrical outer surface that enters earthing pin recession;
  • the contact pin guide and earthing pin guide are formed as a longitudinal slots machined on the casing.
  • the contact pin and the earthing pin are cylindrically shaped, except the contact pin engaging part and earthing pin engaging part.
  • Contact pin and the earthing pin have contact pin recession and earthing pin recession with its curvature close to the radius of cylindrically shaped transmission means.
  • Fig. 1 represents the combined disconnecting-earthing switching module for a gas-insulated switchgear, disclosed hereby, in the isometric view.
  • Fig. 2 represents the cross section of combined disconnecting-earthing switching module for a gas-insulated switchgear formed in a way to depict all the elements used within.
  • Fig. 3 shows one of the possible module working position within the gas-insulated switchgear; where contact path is closed and earthing path is open.
  • Figs. 4A, 4B, 4C, 4D and 4E shows contact and earthing pin positions, in respect with the angle produced by the transmission means;
  • Fig 4 ⁇ depicts the situation where contact path is closed and earthing path is open;
  • Fig 4B depicts the situation where contact pin is retracted from the fixed contact and earthing path is still open;
  • Fig 4C depicts the situation where contact path and earthing path are open, so-called neutral position;
  • Fig 4D depicts the situation where contact path is open and the earthing pin is engaged but not connected to the earthing fixed contact; and finally, Fig 4E depicts the situation where contact path is open and earthing path is fully closed.
  • Figs. 5A and 5B show the module working position that corresponds to the situation already depicted on Figs. 4A and 4E, once module being inserted and fixed within the gas-insulated switchgear compartment.
  • the invention discloses combined disconnecting-earthing switching module, with three working positions, used in a gas-insulated switchgear.
  • Such module should provide contacting, earhing and neutral position for the high-voltage conductor apart from the main switching device, i.e. main switching chamber, equipped with the arc-extinguishing or arc- preventing means .
  • Fig. 1 represents the combined disconnecting-earthing switching module (10) for a gas-insulated switchgear in isometric view.
  • the module (10) has a casing (11) that is formed from a metal or an alloy having excellent electrical conductivity properties, good mechanical properties; that is durable, lightweight, has good machinability and ability to be easily casted or mold into desired shapes. Such materials are already in use in the art, not only for the casing (11) but also for other elements.
  • Other main components of the module (10) are: contact pin (30) , earhing pin (40) and transmission means (20) situated within the casing (11) .
  • the similar requirements are used for the material selection for contact pin (30) and earhing pin (40) ; while the transmission means (20) can be manufactured even from the material having rather poor electrical conductivity properties.
  • Fig. 2 discloses the cross section of the module (10) ; casing (11) is formed as the stylised right angle triangle, with equally length catheti; where movement directions of the pins (30, 40) are parallel to said catheti.
  • Casing (11) is equipped with one or more pin insertion places (12) that enable correct positioning of the said casing (11) relative to the conductive support (60) once conductive pins (62) are inserted.
  • Screw fixation hole (13) enables fixation of the module (10) within the GIS, more particular to the lower part of conductive support (60) via appropriate screw.
  • Contact pin (30) and earthing pin (40) are formed essentially as the solid cylinder, but other geometries are also possible.
  • Contact pin (30) has, on one of its bases formed a contact pin groove (31) and on the opposite base a contact pin engaging part (33) .
  • Said contact pin engaging part (33) has the geometry that is not cylindrical but rather cuboid shaped, with the machined contact pin engaging slot (34).
  • the other earthin pin (40) is formed in the same way, having earthing pin engaging part (43) with the earthing pin engaging slot (44) on one side and with the earthing pin groove (41) formed on another earthing pin (40) base.
  • the pins (30, 40) are identical, but other variants are also possible, so the skilled person in the art will certainly recognise them.
  • Contact pin (30) has one or more contact pin sliders (35) formed on its surface.
  • Earthing pin (40) has one or more earthing pin sliders (45) formed on its surface.
  • Contact pin sliders (35) are designed to be compatible with the contact pin guides (16) formed on the casing (11) and earthing pin sliders (45) are designed to be compatible with the earthing pin guides (17) also formed on the casing (11); see Fig. 1.
  • Pin guides (16, 17) define the movement direction of corresponding pins (30, 40) .
  • pin guides (16, 17) are manufactured as the slots machined in the casing (11) .
  • Contact pin (30) has machined contact pin recession (32) on its longitudinal outer surface and the earthing pin (40) has machined earthing pin recession (42) on its longitudinal outer surface as depicted on the Fig. 2.
  • Said pin recessions (32, 42) is used to lock the said pins (30, 40) via transmission means (20), more particularly by the outer surface (24) of said transmission means (20) , by the casing (11) .
  • Transmission means (20) is formed as the rather short hollow cylindrical object which interior is dedicated to be operating shaft insertion place (23) .
  • Operating shaft that is not depicted, is used to give the operational power for using said module (10) once said shaft is inserted into the place (23) .
  • Part of the transmission means (20), i.e. part of the outer surface (24) is deformed into the elongated nose (21) with engaging pin (22).
  • the engaging pin (22) dimensions are designed to smoothly enter and engage contact pin engaging slot (34) or earthing pin engaging slot (44) of the corresponding pins (30, 40) .
  • the transmission means (20) and its engaging pin (22) are free to rotate, by using the outer force, within the angle range [-90°, +90°] measured from the intersection point of said pins (30, 40) movement directions that falls on the catheti intersection. Rotation of the transmission means (20) engages or disengages the pins (30, 40) , retract and pull out said pins (30, 40) from the casing (11) and lock the pins (30, 40) to the said casing (11) . Movement of transmission means (20) produce three working positions that we will discuss later.
  • Fig. 3 shows position of the module (10) within the compartment walls (50) of the said GIS.
  • Module (10) i.e. its casing (11)
  • Conductive pins (62) secure the relative position of the module (10) to the conductive support (60).
  • Conductive pin (30) is designed to bridge the contact path (39) and to be inserted into fixed contact formed on bus conductor (70) once it's pulled out from the casing (11) by the action of the transmission means (20) .
  • bus conductor (70) connected with the bus connector (71), as depicted on the Fig. 2.
  • earthing pin (40) is designed to bridge the earthing path (49) and to be inserted into earthing fixed contact (90) .
  • Said earthing contact (90) is attached to the earhing fixed conducting holder (91) once said earthing pin (40) is pulled out from the casing (11) by the action of the transmission means (20) .
  • the working procedure of the said module (10) is depicted via series of Figs.
  • Transmission means (20) is in the position close to the angle -90°; contacting pin (30) is fully inserted into the fixed contact (80) establishing therefore the electric contact between the bus conductor (70) via module (10) to the conductive support (60) .
  • Outer surface (24) of the transmission means (20) is nested into the earthing pin recession (42) on the earthing pin (40) and locks the said pin (40) to the module (10).
  • the transmission means (20) starts to rotate clockwise from the angle close to -90°.
  • the engaging pin (22) situated within the contacting pin engaging slot (34) retracts the connecting pin (30) form the fixed contact (80) and is continuously acting to the contact pin engaging part (33) .
  • Earthing pin (40) is still locked to the casing (11) as visible on the Fig. 4B.
  • the situation on the Fig. 4C shows the situation when transmission means (20) is in the position close to the angle 0°; engaging pin (22) is situated between the contacting pin engaging slot (34) and earthing pin engaging slot (44); earthing pin (40) and connecting pin (30) are both locked to the casing (11) via outer surface (24) of the transmission means (20) that partially engages contact pin recession (32) and the earthing pin recession (42) .
  • This is the neutral position of the module (10) where the conductive support (60) is not connected to the bus connector (70) nor to the earting fixed contact (90) .
  • the earthing pin groove (41) has no further technical meaning. Namely, the contact pin (40) passes entirely through the earthing fixed contact (90) .
  • earthing fixed contact (90) is made as hollow cylinder connected to the earthing fixed contact holder and equipped with the conducting springs that secure electrical and mechanical connections with the erathing pin (40) .
  • Other variants are also possible, for instance it is possible to form the earthing fixed contact (90) in the manner used for the fixed contact (80) and then the earthing pin groove (41) will have a technical sense.
  • the present invention discloses an improved combined disconnecting-earthing switching module for a GIS that has three different working positions where the desired technical solution is obtained via direct acting of the transmission means to the contact pin and earthing pin respectively.
  • the present invention is more compact and much simpler than the solutions found in the previous art, as we demonstrated hereby.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

La présente invention concerne un module de commutation combiné de déconnexion et de mise à la terre pour un appareillage de commutation à isolation gazeuse ; ayant un boîtier (11) entourant une broche de contact (30) et une broche de mise à la terre (40), un moyen de transmission (20) équipé de la broche de mise en prise (22) pouvant uniquement mettre en prise l'une des broches (30, 40) à la fois, tandis que l'autre est verrouillée par son renfoncement de broche (32, 42) au boîtier (11). Le module (10) forme trois positions de travail différentes selon les angles de la broche de mise en prise (22). Premièrement, lorsque la broche de contact (30) est insérée dans le contact fixe de l'appareillage de commutation à isolation gazeuse et que la broche de mise à la terre (40) est verrouillée dans le module (10), la surface extérieure cylindrique (24) entrant dans le renfoncement de broche de mise à la terre (42). Deuxièmement, lorsque la broche de contact (30) et la broche de mise à la terre (40) sont toutes les deux verrouillées au module (10). Troisièmement, lorsque la broche de contact (30) est verrouillée au module (10), la surface extérieure cylindrique (24) entrant dans le renfoncement de broche de contact (32), et que la broche de mise à la terre (40) est insérée dans le contact fixe de mise à la terre de l'appareillage de commutation à isolation gazeuse.
PCT/HR2016/000007 2016-02-18 2016-02-18 Module de commutation combiné de déconnexion et de mise à la terre pour un appareillage de commutation à isolation gazeuse Ceased WO2017141060A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/HR2016/000007 WO2017141060A1 (fr) 2016-02-18 2016-02-18 Module de commutation combiné de déconnexion et de mise à la terre pour un appareillage de commutation à isolation gazeuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HR2016/000007 WO2017141060A1 (fr) 2016-02-18 2016-02-18 Module de commutation combiné de déconnexion et de mise à la terre pour un appareillage de commutation à isolation gazeuse

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WO2017141060A1 true WO2017141060A1 (fr) 2017-08-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10121625B2 (en) * 2017-01-06 2018-11-06 Lsis Co., Ltd. 3-way disconnector and earth switch for gas insulated switchgear
CN112951643A (zh) * 2019-12-11 2021-06-11 Abb瑞士股份有限公司 三位置隔离开关

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735637A2 (fr) 1995-03-28 1996-10-02 ABB Management AG Dispositif de coupure ayant un caiter métallique mis à la terre et rempli d'un gaz isolant
WO1999062154A1 (fr) 1998-05-28 1999-12-02 Siemens Aktiengesellschaft Module d'encapsulation comportant un commutateur combine de separation et de mise a la terre pour une installation de commutation isolee par gaz
US6400244B1 (en) 1999-04-26 2002-06-04 Alstom Control apparatus for electrical switchgear
CN201084615Y (zh) 2007-07-26 2008-07-09 廖明厚 三工位机构辅助开关传动装置
EP2178099A1 (fr) 2008-10-14 2010-04-21 AREVA T&D AG Appareil de commutation electrique de haute ou moyenne tension de deux interrupteurs comprenant des moyens d'entrainement communs aux contacts mobiles des interrupteurs
KR100990477B1 (ko) * 2009-09-09 2010-10-29 현대중공업 주식회사 고압차단기의 가스절연 개폐장치
WO2010149482A2 (fr) 2009-06-23 2010-12-29 Siemens Aktiengesellschaft Installation à haute tension
US20120012449A1 (en) * 2010-07-16 2012-01-19 Japan Ae Power Systems Corporation Disconnecting switch with earthing switch
WO2013002472A1 (fr) 2011-06-28 2013-01-03 현대중공업 주식회사 Interrupteur à trois voies pour appareil isolé au gaz
WO2015003864A1 (fr) 2013-07-10 2015-01-15 Siemens Aktiengesellschaft Arrangement de commutation électrique haute tension sous enveloppe métallique

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0735637A2 (fr) 1995-03-28 1996-10-02 ABB Management AG Dispositif de coupure ayant un caiter métallique mis à la terre et rempli d'un gaz isolant
WO1999062154A1 (fr) 1998-05-28 1999-12-02 Siemens Aktiengesellschaft Module d'encapsulation comportant un commutateur combine de separation et de mise a la terre pour une installation de commutation isolee par gaz
US6400244B1 (en) 1999-04-26 2002-06-04 Alstom Control apparatus for electrical switchgear
CN201084615Y (zh) 2007-07-26 2008-07-09 廖明厚 三工位机构辅助开关传动装置
EP2178099A1 (fr) 2008-10-14 2010-04-21 AREVA T&D AG Appareil de commutation electrique de haute ou moyenne tension de deux interrupteurs comprenant des moyens d'entrainement communs aux contacts mobiles des interrupteurs
WO2010149482A2 (fr) 2009-06-23 2010-12-29 Siemens Aktiengesellschaft Installation à haute tension
KR100990477B1 (ko) * 2009-09-09 2010-10-29 현대중공업 주식회사 고압차단기의 가스절연 개폐장치
US20120012449A1 (en) * 2010-07-16 2012-01-19 Japan Ae Power Systems Corporation Disconnecting switch with earthing switch
US8487203B2 (en) 2010-07-16 2013-07-16 Japan Ae Power Systems Corporation Disconnecting switch with earthing switch
WO2013002472A1 (fr) 2011-06-28 2013-01-03 현대중공업 주식회사 Interrupteur à trois voies pour appareil isolé au gaz
US20140116859A1 (en) * 2011-06-28 2014-05-01 Hyundai Heavy Industries Co., Ltd. 3-way switch for a gas-insulated apparatus
WO2015003864A1 (fr) 2013-07-10 2015-01-15 Siemens Aktiengesellschaft Arrangement de commutation électrique haute tension sous enveloppe métallique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10121625B2 (en) * 2017-01-06 2018-11-06 Lsis Co., Ltd. 3-way disconnector and earth switch for gas insulated switchgear
CN112951643A (zh) * 2019-12-11 2021-06-11 Abb瑞士股份有限公司 三位置隔离开关
EP3836182A1 (fr) * 2019-12-11 2021-06-16 ABB Schweiz AG Commutateur de déconnexion à trois positions
US11342140B2 (en) 2019-12-11 2022-05-24 Abb Schweiz Ag Three-position disconnector switch

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