EP3227897B1 - Elektrische tripout-vorrichtung mit einem schutzschalter und isolator - Google Patents

Elektrische tripout-vorrichtung mit einem schutzschalter und isolator Download PDF

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Publication number
EP3227897B1
EP3227897B1 EP15802108.9A EP15802108A EP3227897B1 EP 3227897 B1 EP3227897 B1 EP 3227897B1 EP 15802108 A EP15802108 A EP 15802108A EP 3227897 B1 EP3227897 B1 EP 3227897B1
Authority
EP
European Patent Office
Prior art keywords
contact
movable
disconnector
arcing
permanent
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.)
Active
Application number
EP15802108.9A
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English (en)
French (fr)
Other versions
EP3227897A1 (de
Inventor
Didier Rodrigues
Denis Frigiere
Jean Marc Willieme
Frank Jacquier
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.)
General Electric Technology GmbH
Original Assignee
General Electric Technology GmbH
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
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Publication of EP3227897A1 publication Critical patent/EP3227897A1/de
Application granted granted Critical
Publication of EP3227897B1 publication Critical patent/EP3227897B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • 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

Definitions

  • the invention relates to the power failure in an installation of medium or high voltage type.
  • An electrical installation of the high voltage or medium voltage type typically comprises two types of equipment which are on the one hand the circuit breakers and on the other hand the disconnectors.
  • a disconnector comprises a single set of contacts, comprising a fixed disconnection contact and a movable disconnection contact, through which the current flows when the disconnector is closed.
  • the disconnecting contacts are separated by a distance through which the disconnector has a certain rigidity, that is to say a determined dielectric strength.
  • a circuit breaker has a set of permanent contacts connected in parallel with a set of arcing contacts. These arcing contacts are in an enclosure containing a dielectric gas such as SF6 promoting the extinction of an electric arc formed between these arcing contacts at the opening of the circuit breaker.
  • a dielectric gas such as SF6
  • the arcing contacts can not be traversed by a nominal current for a time too long, they are used only during the operation of the circuit breaker. In normal operation, when the circuit-breaker is closed, the permanent contacts are thus closed, so that the nominal current mainly passes through these permanent contacts. During the opening operation, the permanent contacts are open before opening the arcing contacts.
  • a circuit breaker and a disconnector are generally used in series to combine the characteristics and advantages of each device: the breaking capacity of the circuit breaker and the dielectric strength of the disconnector.
  • the object of the invention is to propose a new arrangement of this type of apparatus.
  • the breaking device together constitutes a circuit breaker and a disconnector, thereby having a reduced amount of components to provide two functions in one.
  • the movable permanent contact also plays the role fixed contact of the disconnector, and similarly, the movable disconnection contact also plays the role of fixed permanent contact.
  • the invention also relates to a device thus defined, wherein the movable arcing contact and the moving permanent contact are kinematically connected to each other to move together in a kinematic in which when the movable sectional contact is closed during a displacement of the movable arcing contact and the moving permanent contact from the closed position to the open position, the moving permanent contact is disconnects from the movable sectional contact before the movable arcing contact disconnects from the fixed arcing contact.
  • the invention also relates to a device thus defined, wherein the movable arcing contact and the moving permanent contact are kinematically connected to each other forming a single movable element.
  • the invention also relates to a device thus defined, wherein the movable permanent contact has a hollow form of revolution surrounding the fixed arcing contact and the movable arcing contact being slidably mounted relative to the first fixed support which carries it.
  • the invention also relates to a device thus defined, wherein the movable severing contact has a shape of revolution and is slidably mounted relative to the second movable support comprising a tubular connecting portion to the movable permanent contact and a central connecting finger to the fixed arc contact.
  • the invention also relates to a device thus defined, wherein the components of the circuit breaker on the one hand and the components of the disconnector on the other hand are spaced a distance when all the contacts are open, to allow the insertion of a screen between the circuit breaker and the disconnector.
  • the invention also relates to a device thus defined, equipped with a screen fitting into the space separating the components of the circuit breaker and the disconnector components when the contacts are open.
  • the cut-off device 1 has a shape of revolution about an axis AX which corresponds to its longitudinal axis. It comprises an electrical circuit breaker part, marked by 2 and located on the left in the figures, and an electrical disconnector part, marked by 3 and located in the right part in the figures.
  • This device comprises a first fixed support 4, located on the side of the circuit breaker part, and a second fixed support 6, located on the side of the disconnector part.
  • the fixed supports 4 and 6 are electrically connected respectively to one and the other of the line sections.
  • the fixed support 4 comprises a tubular portion 7, one end of which is closed by a flat bottom 8 which carries on its internal face a base 9 itself carrying a cut-off bulb 11, the base and the bulb being thus surrounded by the tubular portion 7.
  • This bulb 11 delimits a sealed enclosure containing a dielectric gas such as SF6, and it encloses a movable arcing contact and a fixed arcing contact, which are the contacts between which an electric arc can be formed during the opening phase. circuit breaker.
  • a dielectric gas such as SF6
  • the bulb 11 comprises a cylinder 12, one end of which is carried by the base 9 and the other end of which is closed by a bulb flank 13 which bears on its internal face, that is to say on its face. oriented towards the inside of the bulb, the fixed arc contact 14.
  • This fixed arcing contact 14 is a rectilinear finger extending in the cylinder 12 towards the base 9, and which has a curved free end located substantially at mid-length of the cylinder 12.
  • the movable arcing contact which is indicated by 16, is carried by the base 9 by being translatable in translation along the axis AX in the bulb and being electrically connected to the fixed support 4. It comprises a portion tubular whose end comes surround the fixed arcing contact 14 to establish the electrical contact in the closed position as on the figure 1 , and a nozzle surrounding this tubular portion.
  • the movable arcing contact 16 In closed position as on the figure 1 , the movable arcing contact 16 is thus deployed in the bulb, to surround the fixed arcing contact 14 by enclosing it in order to be in electrical contact therewith. In open position as on the figure 2 this moving arcing contact 16 is instead retracted to be away from the fixed arcing contact 14.
  • the movable arcing contact 16 When opening the circuit breaker, the movable arcing contact 16 is moved in translation to move from its closed position where it is deployed, to its open position where it is retracted. When the arcing contacts 14 and 16 separate during this movement, an electric arc is established between them, and thanks in particular to the presence of insulating gas SF6, this arc disappears before the end of the opening movement.
  • the circuit breaker In operation, the entire nominal current does not pass through the arcing contacts, because eventually it would deteriorate.
  • the circuit breaker thus has a so-called permanent moving contact, through which the greater part of the line current passes when the circuit-breaker is closed and is not maneuvered.
  • the moving permanent contact which is marked by 17, here has a tube shape which slides at the inside of the tubular portion 7 of the fixed support 4 to be movable in translation between a closed position and an open position.
  • the movable permanent contact 17 In the closed position corresponding to the figure 1 the movable permanent contact 17 is deployed to be in electrical contact with another contact identified by 18. In the open position corresponding to the figure 2 the movable permanent contact 17 is retracted into the tubular portion 7 to be spaced from the other contact 18.
  • the movable permanent contact 17 is electrically connected to the tubular portion 7 in which it slides through a sliding contact 19 carried by the inner face of the tubular portion 7 in the end region of this tubular portion 7.
  • the movable permanent contact 17 is thus electrically connected to the fixed support 4 regardless of the position it occupies.
  • the movable permanent contact 17 and the movable arcing contact 16 are kinematically connected to one another by mechanical elements, not shown, to form here a single moving element.
  • the movable permanent contact disconnects from the contact 18 before the movable arcing contact 16 disconnects from the fixed arcing contact 14
  • the arc can not be formed at the level of the permanent contact, but only at the level of the arcing contacts.
  • this disconnection order is ensured by an appropriate choice of the lengths and positions of the moving permanent contact 17 with respect to the contact 18, and the movable arcing contact 16 with respect to the fixed arcing contact 14. More specifically, when the crew is in the closed position, the driving length of the fixed arcing contact 14 in the movable arcing contact 16 is greater than the driving length of the moving permanent contact in the contact 18. .
  • This second fixed support 6 thus comprises, like the first, a tubular portion 21, one end of which is closed by a flat bottom 22.
  • the movable contact 18 of the disconnector comprises a tubular body 23 which is slidably mounted inside the portion tubular 21 of the fixed support 6.
  • the tubular body 23 carries in the region of its end near the moving permanent contact 17, that is to say the end extending towards the first fixed support 4, a sliding contact 26 carried by its internal face.
  • This movable cutting contact 18 is movable in translation between an open position corresponding to that of the figure 3 and a closed position corresponding to that he occupies in the Figures 1 and 2 .
  • the movable sectional contact 18 When in its open position, the movable sectional contact 18 is retracted into the tubular portion 21 to be spaced apart from the movable permanent contact 17, whether closed or open. When it occupies its closed position, the movable disconnection contact 18 is deployed to come into contact with the movable permanent contact 17 if it is closed, that is to say deployed as on the figure 1 .
  • the device is completely closed, and the nominal current passes successively, through the fixed support 4, the contact movable standing 17, the movable cutting contact 18, and the second fixed support 6.
  • This mobile sectioning contact 18 comprises, in addition to its tubular body 23, a planar medial wall 27 which extends in a plane normal to the axis AX, which closes the tubular body 23, and which carries a central contact pin 28.
  • This contact finger 28 extends along the axis of revolution AX towards the breaking bulb 11, that is to say in the direction opposite to the second fixed support 6.
  • the bulb side 13 carries on its outer face a tubular contact member 29 in which the contact finger 28 engages when the movable disconnection contact 18 occupies its closed position as on the figure 1 or the figure 2 .
  • the fixed arc contact 14 of the circuit breaker is electrically connected to the second fixed support 6, through the bulb side 13, the contact member 29, and the movable sectional contact 18.
  • the cut-off device according to the invention is completely closed, as in the figure 1 . Its opening then consists first of all in maneuvering the mobile equipment comprising the moving permanent contact 17 and the movable arcing contact 16, from its closed position to its open position, namely from left to right in the figures.
  • the mobile permanent contact 17 disconnects from the contact of At this stage, the entire current passes through the arcing contacts 14 and 16, and through the central finger 28 of the movable disconnecting contact 18 to reach the fixed support 6.
  • the current is cut off because the movable permanent contact 17 and the disconnection contact 18 are spaced from each other and the movable arcing contact 16 and the fixed arcing contact 14 are themselves also spaced apart from each other.
  • FIG 4 it is shown in the figure 4 the integration of a cut-off device according to the invention in an enclosure comprising a shell 31 whose upper part is closed by two half-roofs 32 and 33 which respectively cover the part 2 forming a circuit breaker and the part 3 forming a disconnector.
  • These two half-roofs can be opened independently of one another, and they are spaced from each other along the axis AX by a slot of small width allowing the insertion of an electric screen 34 before opening one or the other of the roofs. This slot is used to insert the screen, but it is narrow enough to prevent a technician to move his arm or leg.
  • An intervention on the circuit breaker part of the device thus consists in putting the circuit-breaker part off, inserting the electric screen 34 between the two half-roofs, leaving the disconnecting part energized.
  • the half roof 32 covering the circuit breaker portion can then be opened to allow an operator to intervene on this circuit breaker without risk of electrocution.
  • the screen that is inserted along the circuit breaker portion ensures the maintenance of a sufficient distance, ie the distance D, between all the components of the circuit-breaker part and all the components of the disconnecting part during the intervention of the operator.
  • the invention thus provides the following advantages: in the event of damage to the control of the circuit breaker part, the disconnector part remains operational and can be operated independently of the other part.
  • the device according to the invention while assembling a circuit breaker and a disconnector thus allows their independent operation. It is thus possible to perform without any risk of maneuvering tests of the circuit breaker part, simply leaving the disconnecting part open, for example before commissioning the system.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Claims (6)

  1. Stromabschaltvorrichtung (1), die einen Schutzschalter (2), der einen ersten ortsfesten leitenden Träger (4) umfasst, welcher einen ortsfesten Lichtbogenkontakt (14) und einen zwischen einer geschlossenen Stellung und einer offenen Stellung beweglichen Lichtbogenkontakt (16) trägt, und ebenfalls einen zwischen einer geschlossenen Stellung und einer offenen Stellung beweglichen Dauerkontakt (17) trägt, wobei der bewegliche Lichtbogenkontakt (16) und der bewegliche Dauerkontakt (17) kinematisch miteinander verbunden sind, indem sie eine einzige bewegliche Einrichtung bilden, und elektrisch mit dem ersten ortsfesten Träger (4) verbunden sind, und einen Trennschalter (3) enthält, der einen zweiten ortsfesten leitenden Träger (6) umfasst, welcher einen zwischen einer geschlossenen Stellung und einer offenen Stellung beweglichen Trennkontakt (18) trägt, und wobei:
    - ein Kolben (11) einen dichten Raum begrenzt, der den beweglichen Lichtbogenkontakt (16) und den ortsfesten Lichtbogenkontakt (14) umschließt, wobei der Kolben (11) eine Kolbenflanke (13) enthält, die an ihrer Innenseite den ortsfesten Lichtbogenkontakt (14) und an ihrer Außenseite ein Kontaktorgan (29) enthält,
    - der bewegliche Trennkontakt (18) mit dem Kontaktorgan (29) in Kontakt ist, um elektrisch mit dem ortsfesten Lichtbogenkontakt (14) verbunden zu sein, wenn er geschlossen ist;
    - der bewegliche Trennkontakt (18) vom ortsfesten Lichtbogenkontakt (14) entfernt ist, wenn er offen ist;
    - der bewegliche Trennkontakt (18) und der bewegliche Dauerkontakt (17) miteinander verbunden sind, wenn sie beide in geschlossener Stellung sind;
    - der bewegliche Trennkontakt (18) und der bewegliche Dauerkontakt (17) voneinander entfernt sind, wenn der eine oder der andere offen ist.
  2. Vorrichtung nach Anspruch 1, wobei der bewegliche Lichtbogenkontakt (16) und der bewegliche Dauerkontakt (17) so angeordnet sind, dass, wenn der bewegliche Trennkontakt (18) während einer Verschiebung des beweglichen Lichtbogenkontakts (16) und des beweglichen Dauerkontakts (17) von der geschlossenen Stellung in die offene Stellung geschlossen ist, der bewegliche Dauerkontakt (17) sich vom beweglichen Trennkontakt (18) trennt, ehe der bewegliche Lichtbogenkontakt (16) sich vom ortsfesten Lichtbogenkontakt (14) trennt.
  3. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei der bewegliche Dauerkontakt (17) eine hohle drehsymmetrische Form hat, die den ortsfesten Lichtbogenkontakt (14) und den beweglichen Lichtbogenkontakt (16) umgibt, indem er bezüglich des ihn tragenden ersten ortsfesten Trägers (4) gleitend montiert ist.
  4. Vorrichtung nach Anspruch 3, wobei der bewegliche Trennkontakt (18) eine drehsymmetrische Form hat und bezüglich des zweiten beweglichen Trägers (6) gleitend montiert ist, indem er einen rohrförmigen Teil (23) zur Verbindung mit dem beweglichen Dauerkontakt (17) und einen zentralen Finger (28) zur Verbindung mit dem ortsfesten Lichtbogenkontakt (14) hat.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, wobei die Bestandteile des Schutzschalters (2) einerseits und die Bestandteile des Trennschalters (3) andererseits einen Abstand (D) zueinander haben, wenn alle Kontakte (14, 16, 17, 18) offen sind, um das Einführen einer Abschirmung zwischen den Schutzschalter und den Trennschalter zu erlauben.
  6. Vorrichtung nach Anspruch 5, die mit einer Abschirmung ausgestattet ist, die sich in den Raum einfügt, der die Bestandteile des Schutzschalters (2) und die Bestandteile des Trennschalters (3) trennt, wenn die Kontakte offen sind.
EP15802108.9A 2014-12-02 2015-12-01 Elektrische tripout-vorrichtung mit einem schutzschalter und isolator Active EP3227897B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1461804A FR3029351B1 (fr) 2014-12-02 2014-12-02 Dispositif de coupure electrique integrant un disjoncteur et un sectionneur
PCT/EP2015/078138 WO2016087406A1 (fr) 2014-12-02 2015-12-01 Dispositif de coupure electrique integrant un disjoncteur et un sectionneur

Publications (2)

Publication Number Publication Date
EP3227897A1 EP3227897A1 (de) 2017-10-11
EP3227897B1 true EP3227897B1 (de) 2018-10-24

Family

ID=52589555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15802108.9A Active EP3227897B1 (de) 2014-12-02 2015-12-01 Elektrische tripout-vorrichtung mit einem schutzschalter und isolator

Country Status (5)

Country Link
US (1) US10115546B2 (de)
EP (1) EP3227897B1 (de)
JP (1) JP2018501756A (de)
FR (1) FR3029351B1 (de)
WO (1) WO2016087406A1 (de)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617633B1 (fr) * 1987-07-02 1989-11-17 Merlin Gerin Disjoncteur a arc tournant et a expansion
JPH08129942A (ja) * 1994-10-28 1996-05-21 Hitachi Ltd パッファ形ガス遮断器
FR2737936B1 (fr) * 1995-08-18 1997-09-19 Gec Alsthom T & D Sa Disjoncteur muni d'une resistance de fermeture avec dispositif d'insertion
DE19547098A1 (de) * 1995-12-16 1997-06-19 Asea Brown Boveri Leistungsschalter mit einem Einschaltwiderstand
JPH09231885A (ja) * 1996-02-22 1997-09-05 Hitachi Ltd ガス遮断器
FR2756413B1 (fr) * 1996-11-28 1998-12-31 Gec Alsthom T & D Sa Disjoncteur a piston semi-mobile
FR2763171B1 (fr) * 1997-05-07 1999-07-09 Gec Alsthom T & D Sa Disjoncteur avec sectionneur
FR2763422B1 (fr) 1997-05-15 1999-07-09 Gec Alsthom T & D Sa Disjoncteur de generateur
FR2770678B1 (fr) 1997-10-30 1999-12-31 Gec Alsthom T & D Sa Disjoncteur de generateur a commande mecanique unique
DE19859007A1 (de) * 1998-12-21 2000-06-29 Abb Patent Gmbh Lasttrennschalter
FR2840729B1 (fr) * 2002-06-05 2004-07-16 Alstom Dispositif interrupteur pour haute ou moyenne tension, a coupure mixte par vide et gaz
FR2892851B1 (fr) * 2005-11-03 2013-12-06 Areva T & D Sa Chambre de coupure de courant a double chambre de compression
ITMI20062161A1 (it) * 2006-11-10 2008-05-11 Vei Power Distrib S P A Apparecchiature tripolare per uno scomparto in media o alta tensione e relativo scomparto comprendente tale apparecchiatura tripolare
US8063333B2 (en) * 2008-02-05 2011-11-22 Southern States, Inc. Limited flash-over electric power switch
JP5178644B2 (ja) * 2009-06-29 2013-04-10 株式会社東芝 投入抵抗接点付きガス遮断器及びその投入、遮断方法
DE102010005090A1 (de) * 2010-01-15 2011-07-21 Siemens Aktiengesellschaft, 80333 Schaltkammer für einen Leistungsschalter sowie Leistungsschalter mit Schaltkammer
KR101622422B1 (ko) * 2011-07-20 2016-05-18 엘에스산전 주식회사 가스 절연 차단기
FR2999331B1 (fr) 2012-12-12 2019-05-31 Alstom Technology Ltd Appareillage de coupure de courant ameliore

Also Published As

Publication number Publication date
FR3029351B1 (fr) 2017-12-29
JP2018501756A (ja) 2018-01-18
EP3227897A1 (de) 2017-10-11
WO2016087406A1 (fr) 2016-06-09
FR3029351A1 (fr) 2016-06-03
US10115546B2 (en) 2018-10-30
US20170338067A1 (en) 2017-11-23

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