WO1992014255A1 - Commutateur a gas comprime - Google Patents

Commutateur a gas comprime Download PDF

Info

Publication number
WO1992014255A1
WO1992014255A1 PCT/DE1992/000017 DE9200017W WO9214255A1 WO 1992014255 A1 WO1992014255 A1 WO 1992014255A1 DE 9200017 W DE9200017 W DE 9200017W WO 9214255 A1 WO9214255 A1 WO 9214255A1
Authority
WO
WIPO (PCT)
Prior art keywords
compression
heating chamber
gas
switch
extinguishing gas
Prior art date
Application number
PCT/DE1992/000017
Other languages
German (de)
English (en)
Inventor
Heiner Marin
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1992014255A1 publication Critical patent/WO1992014255A1/fr

Links

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
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/901—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc

Definitions

  • the invention relates to a gas pressure switch with two coaxially arranged contact pieces, with hollow hollow nozzles for discharging extinguishing gas and with a stationary cylindrical heating chamber coaxially surrounding the nozzle space and in connection therewith.
  • Such a pressure gas switch is known from DE-OS 34 25 633.
  • the fixed boiler room is used during a switch-off process to store quenching gas heated by the arc, which flows back into the arc chamber when the current to be switched off is at zero current and is used to extinguish the arc.
  • the object of the invention is to improve the dielectric strength of the switching path during the switch-off process and in the switch-off state in the case of a switch of the type mentioned at the outset.
  • the object is achieved in that at least a part of the end walls of the boiler room are formed by electrodes for controlling the electrical field on the switching path.
  • the at least partial formation of the end boundary walls of the boiler room as electrodes creates an electrode configuration which allows the electrical field in the region of the switching path to be made uniform in order to avoid singularities of the field strength in the region between the contact pieces.
  • the effect of the construction according to the invention increases the dielectric strength between the contact pieces in the switched-off state. It is also possible to increase the nominal voltage of such a switch with a constant distance between the contact pieces or with a constant nominal voltage a smaller distance between the two contact pieces to be selected, whereby the fluid-mechanical conditions for the extinguishing gas in the nozzle space are improved.
  • An advantageous embodiment of the invention provides that a mechanical compression device for the extinguishing gas is provided, which is connected to the boiler room via a closable opening.
  • Such an additional compression device can also handle switching cases in which the pressure increase in the extinguishing gas in the boiler room due to the heating power of the arc or the amount of heated extinguishing gas in the boiler room is not sufficient to extinguish the arc.
  • the mechanical compression device for the quenching gas provides additional compressed quenching gas which can be introduced into the boiler room via a closable opening to support the arc quenching.
  • Compression device blocking check valve is closable.
  • the non-return valve ensures that the extinguishing gas pressure is maintained in the event of a strong pressure increase in the boiler room as a result of a powerful arc, and that no extinguishing gas is discharged from the boiler room to the compression device. In this case, the drive of the switch is not burdened by an additional pressure increase in the compression space.
  • the mechanical compression device for the extinguishing gas consists of a compression space arranged coaxially to the contact pieces
  • the invention can advantageously be configured in that the compression space is arranged on the side of the heating space opposite the drive side of the switch.
  • a further advantageous embodiment of the invention provides that in a compressed gas switch, in which the device for compressing extinguishing gas is designed in the form of a drivable compression cylinder and a compression piston, the continuation of the jacket-side outer wall of the compression cylinder is the jacket-side boundary wall of the heating volume forms.
  • This embodiment of the invention entails a low outlay in terms of design, since the continuation of the outer wall of the compression cylinder on the jacket side, which is used to transmit the driving force to the compression cylinder is used at the same time for the further purpose of limiting the boiler room.
  • this configuration allows the diameter of the compression cylinder to be kept small, which results in a space saving for the switch
  • a further advantageous embodiment of the invention provides that one of the electrodes forms the stationary compression piston of the compression device.
  • This measure allows the boiler room and the compression room to be implemented particularly easily in a constructive unit with as few components as possible.
  • the single figure shows a pressure gas switch according to the invention in a schematic representation in two half sections, one half section showing the switch in the on state, the other half section showing the switch in the off state.
  • the compressed gas switch 1 is arranged in a switch housing 2. It has two contact tubes 3, 4, of which the first contact tube 3 carries a fixed hollow contact piece 5, while the second contact tube 4 is conductively connected to a movable pin-shaped contact piece 6 via a sliding contact 7. In the switched-on state, the pin-shaped contact piece 6 is in conductive connection with the hollow contact piece 5.
  • the two contact tubes 3, 4 are each hollow to discharge extinguishing gases and provided with a nozzle 8, 9 at their mutually facing ends.
  • a bridging contact piece 10 is provided, which the both contact tubes 3, 4 coaxially surrounds and bridged conductive in the on state.
  • the arc is drawn between the contact pieces 5, 6, so that the arc extends between the nozzles 8, 9.
  • the bypass switch 10 is pulled away to the drive side of the switch 1 during the switch-off process.
  • the connection between the nozzle space 11 and the heating space 12 is thereby released. Due to the effect of the arc, the quenching gas located in the nozzle space 11 is heated and pressed as hot quenching gas into the heating chamber 12, where it is stored to extinguish the arc.
  • the extinguishing gas flows back from the heating chamber 12 into the nozzle space 11, where it causes the arc to be extinguished or the switching path to be re-solidified.
  • a compression space 13 is arranged on the side of the heating space 12 facing away from the drive side of the switch.
  • the compression space 13 is formed from a drivable compression cylinder 14 and a stationary compression piston 15.
  • the compression cylinder 14 is closed off by a cylinder end wall 16.
  • the fixed compression piston 15 is made of conductive material and at the same time forms one of the end walls of the heating chamber 12. It is conductively connected to the contact tube 3 and forms an electrode which coaxially surrounds the contact tube 3 and serves to even out the field over the switching path.
  • a further electrode 17, which forms the second end wall of the heating chamber 12, is arranged on the side of the heating chamber 12 opposite the fixed compression piston 15.
  • the two electrodes 15, 17 form a constellation for the equalization of the electrical field over the switching path.
  • the electrodes are shaped and spaced apart from one another such that the heating chamber is used to extinguish the arc optimal size.
  • the second electrode 17 is conductively connected to the contact tube 4.
  • the fixed compression piston 15 has a recess 18 which receives a part of the bridging contact piece 10 in the switched-on position.
  • a continuous opening 19 is provided in the compression piston 15, which opening can be closed by a non-return valve 20 which blocks in the direction of the compression space.
  • the check valve 20 ensures that in the event of a high extinguishing gas pressure in the heating chamber 12 nothing escapes from the compressed extinguishing gas into the compression space 13, but on the other hand in the event that there is not enough compressed extinguishing gas available in the heating chamber 12, from the compression space 13 mechanically compressed extinguishing gas can flow.
  • a pressure relief valve 24 for limiting the pressure in the compression space 13 and an inflow valve 25 for admitting fresh extinguishing gas when the switch is turned on are provided in the cylinder wall 16 of the compression cylinder.
  • the continuation of the compression cylinder 14 to the drive side of the switch forms the outer surface of the heating chamber 12.
  • the fixed compression piston 15 and the second electrode 17 are sealed by ring seals against the compression cylinder 14 or the continuation of the compression cylinder 14.
  • the electrode 17 is also sealed off from the movable bridging contact piece 10 with a further ring seal 23.
  • the contact system of the switch is in the form of an internal arcing contact 5, 6 with nozzles 8, 9 Insulated material shown.

Landscapes

  • Circuit Breakers (AREA)

Abstract

Dans un commutateur à gaz comprimé, le champ électrique dans la région de la longueur de commutation est réglé au moyen d'électrodes de champ. Un commutateur à gaz comprimé (1) comprend deux pièces de contact (5, 6) coaxiales et des ajutages creux (8, 9) d'évacuation du gaz d'extinction, ainsi qu'une chambre cylindrique fixe de chauffage (12) qui entoure coaxialement l'intervalle (11) entre les ajutages et est en communication avec celui-ci. Les parois frontales de délimitation de la chambre de chauffage (12) sont formées au moins en partie par des électrodes (15, 17) de réglage du champ électrique appliqué à la longueur de commutateur. En outre, une chambre de compression (13) est ménagée du côté de la chambre de chauffage (12) opposé au côté de commande du commutateur (1). On peut mettre en oeuvre l'invention dans tous les commutateurs à gaz comprimé pourvus d'une chambre de chauffage du gaz de commutateurs.
PCT/DE1992/000017 1991-01-31 1992-01-10 Commutateur a gas comprime WO1992014255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914103119 DE4103119A1 (de) 1991-01-31 1991-01-31 Druckgasschalter
DEP4103119.9 1991-01-31

Publications (1)

Publication Number Publication Date
WO1992014255A1 true WO1992014255A1 (fr) 1992-08-20

Family

ID=6424219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1992/000017 WO1992014255A1 (fr) 1991-01-31 1992-01-10 Commutateur a gas comprime

Country Status (2)

Country Link
DE (1) DE4103119A1 (fr)
WO (1) WO1992014255A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664551A2 (fr) * 1994-01-21 1995-07-26 Siemens Aktiengesellschaft Disjoncteur électrique pour H.T. avec chambre de réchauffement et un dispositif de compression
EP0664553A1 (fr) * 1994-01-21 1995-07-26 Siemens Aktiengesellschaft Disjoncteur de puissance haute tension à chambre d'échauffement
EP0744759A1 (fr) * 1995-05-24 1996-11-27 Siemens Aktiengesellschaft Disjoncteur pour haute tension avec chambre de réchauffement fixe
WO1998001877A1 (fr) * 1996-07-10 1998-01-15 Siemens Aktiengesellschaft Interrupteur de puissance a gaz comprime
WO2012007447A1 (fr) * 2010-07-16 2012-01-19 Alstom Grid Sas Appareillage de chambre de coupure pour deux electrodes de contact confinees

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627098A1 (de) * 1996-07-05 1998-01-08 Asea Brown Boveri Leistungsschalter
DE19641550A1 (de) * 1996-10-09 1998-04-16 Asea Brown Boveri Leistungsschalter
DE10125100A1 (de) * 2001-05-23 2002-11-28 Abb Patent Gmbh Selbstblas-Löschkammer eines Hochspannungs-Leistungsschalters
DE102005017902A1 (de) * 2005-04-18 2006-10-19 Abb Technology Ag Lasttrennschalter sowie Schaltanlage mit Lasttrennschalter
EP2369608B1 (fr) 2010-03-26 2012-08-29 ABB Research Ltd. Disjoncteur haute tension

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7203573U (de) * 1972-02-01 1972-05-10 Licentia Elektrischer Leistungsschalter
EP0040781A1 (fr) * 1980-05-23 1981-12-02 ALSTHOM-ATLANTIQUE Société anonyme dite: Sectionneur de poste blindé à haute tension
EP0071867A1 (fr) * 1981-08-12 1983-02-16 Hitachi, Ltd. Interrupteur de circuit du type à autosoufflage de gaz
DE3311022A1 (de) * 1982-03-25 1983-09-29 Mitsubishi Denki K.K., Tokyo Trennschalter
EP0306439A1 (fr) * 1987-09-01 1989-03-08 Siemens Aktiengesellschaft Interrupteur électrique à gaz comprimé
DE8912891U1 (de) * 1989-02-07 1990-01-18 Siemens AG, 1000 Berlin und 8000 München Metallgekapselter Druckgas-Leistungsschalter mit zur Feldsteuerung dienenden Ringen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7203573U (de) * 1972-02-01 1972-05-10 Licentia Elektrischer Leistungsschalter
EP0040781A1 (fr) * 1980-05-23 1981-12-02 ALSTHOM-ATLANTIQUE Société anonyme dite: Sectionneur de poste blindé à haute tension
EP0071867A1 (fr) * 1981-08-12 1983-02-16 Hitachi, Ltd. Interrupteur de circuit du type à autosoufflage de gaz
DE3311022A1 (de) * 1982-03-25 1983-09-29 Mitsubishi Denki K.K., Tokyo Trennschalter
EP0306439A1 (fr) * 1987-09-01 1989-03-08 Siemens Aktiengesellschaft Interrupteur électrique à gaz comprimé
DE8912891U1 (de) * 1989-02-07 1990-01-18 Siemens AG, 1000 Berlin und 8000 München Metallgekapselter Druckgas-Leistungsschalter mit zur Feldsteuerung dienenden Ringen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664551A2 (fr) * 1994-01-21 1995-07-26 Siemens Aktiengesellschaft Disjoncteur électrique pour H.T. avec chambre de réchauffement et un dispositif de compression
EP0664553A1 (fr) * 1994-01-21 1995-07-26 Siemens Aktiengesellschaft Disjoncteur de puissance haute tension à chambre d'échauffement
EP0664551A3 (fr) * 1994-01-21 1995-08-30 Siemens Ag
EP0744759A1 (fr) * 1995-05-24 1996-11-27 Siemens Aktiengesellschaft Disjoncteur pour haute tension avec chambre de réchauffement fixe
WO1998001877A1 (fr) * 1996-07-10 1998-01-15 Siemens Aktiengesellschaft Interrupteur de puissance a gaz comprime
US6207918B1 (en) 1996-07-10 2001-03-27 Siemens Aktiengesellschaft Compressed gas power switch
WO2012007447A1 (fr) * 2010-07-16 2012-01-19 Alstom Grid Sas Appareillage de chambre de coupure pour deux electrodes de contact confinees
FR2962847A1 (fr) * 2010-07-16 2012-01-20 Areva T & D Sas Appareillage de chambre de coupure pour deux electrodes de contact confinees
CN103109339A (zh) * 2010-07-16 2013-05-15 阿尔斯通技术有限公司 用于受限制的两个接触电极的断路器管开关装置
US9524836B2 (en) 2010-07-16 2016-12-20 Alstom Technology Ltd. Arc-control chamber gear for two confined contact electrodes

Also Published As

Publication number Publication date
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