EP0744759A1 - Disjoncteur pour haute tension avec chambre de réchauffement fixe - Google Patents

Disjoncteur pour haute tension avec chambre de réchauffement fixe Download PDF

Info

Publication number
EP0744759A1
EP0744759A1 EP96250107A EP96250107A EP0744759A1 EP 0744759 A1 EP0744759 A1 EP 0744759A1 EP 96250107 A EP96250107 A EP 96250107A EP 96250107 A EP96250107 A EP 96250107A EP 0744759 A1 EP0744759 A1 EP 0744759A1
Authority
EP
European Patent Office
Prior art keywords
continuous current
compression
current contact
circuit breaker
compression cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96250107A
Other languages
German (de)
English (en)
Other versions
EP0744759B1 (fr
Inventor
Volker Lehmann
Friedrich Löbner
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP0744759A1 publication Critical patent/EP0744759A1/fr
Application granted granted Critical
Publication of EP0744759B1 publication Critical patent/EP0744759B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H33/70—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
    • 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
    • H01H2033/908—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 using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume
    • 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
    • H01H33/245—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring using movable field electrodes

Definitions

  • the invention relates to a high-voltage circuit breaker with a pair of opposing arcing contact pieces, which delimits a separating distance when switched off, and a pair of continuous current contact pieces arranged coaxially to the arcing contact pieces, of which at least one of the contact pieces can be driven from a drive side, and with one in Compression device which can be actuated in the course of the switching movement and has a compression piston and a drivable compression cylinder and a heating volume which is arranged on the drive side of the compression piston and is stationary during the switching movement.
  • Such a high-voltage circuit breaker is already known from DE-OS 41 03 119.
  • two arcing contacts are coaxially surrounded by continuous current contacts and a fixed heating volume is provided, in which the quenching gas heated by an arcing during the switching process can be stored and made available for subsequent blowing of the arcing.
  • there is a mechanical compression device for the quenching gas which on the one hand provides sufficiently high quenching gas pressure at low currents, if the heating of the quenching gas by the arc is insufficient, and on the other hand supports the blowing of the arc at medium-sized amperages.
  • a major advantage of the known circuit breaker described before other known designs is that the heating volume and the components delimiting it do not need to be accelerated during the switching movement.
  • the compression cylinder carries the drivable continuous current contact on its outside, that the compression piston is arranged on the side of the circuit breaker facing the drive in such a way that the compression cylinder with the continuous current contact can be moved out of the isolating section and that Continuous current contacts are separated from the arcing contacts in a gas-tight manner by an insulating material body that coaxially surrounds them.
  • the switch is structurally simplified overall and the masses to be accelerated are reduced. As a result, it is necessary to withdraw the compression cylinder, which now carries electrically conductive elements, from the isolating section when it is switched off.
  • the heating volume stores the heated extinguishing gas and makes it available for subsequent blowing of the arc. Contamination of the continuous current contacts with hot extinguishing gas is prevented by the insulating material body.
  • An advantageous embodiment of the invention provides that the compression piston is pierced by a check valve that allows gas to flow only in the direction from the compression space to the heating volume.
  • the quenching gas compressed in the compression chamber can thus enter the heating chamber through the check valve, while an overflow of pressurized quenching gas from the heating chamber into the compression chamber is not possible. This prevents the extinguishing gas pressure in the compression chamber from rising so much that it hinders or slows down the opening movement.
  • a further advantageous embodiment of the invention provides that the continuous current contact carried by the compression cylinder forms a field electrode in the switched-off state to make the electrical field more uniform in the region of the isolating path.
  • the compression cylinder Since the compression cylinder carries the continuous current contact anyway, it makes sense to design it in the form of a field electrode or to conductively connect it to a field electrode. As a result, in the retracted state of the compression cylinder, i. H. When the circuit breaker is switched off, a field equalization in the area between the contacts is guaranteed.
  • the fixed counter contact to the movable continuous current contact can also be designed as a field electrode. It is also conceivable to arrange a known, retractable field electrode on the side opposite the drive side of the switch, which is acted upon by a spring force in the axial direction of the switch, can be pushed back by the compression cylinder when the switch is switched on, and the compression cylinder when it is switched off follows a stop and remains there as a field electrode.
  • the figure shows schematically part of an interrupter unit of a circuit breaker without the housing, in the upper half in the switched-off state and in the lower half in the switched-on state.
  • two arcing contacts 1, 2 coaxially face each other in the switched-off state in the upper half of the figure.
  • the drivable arcing contact 1 When switched on, i.e. H.
  • the drivable continuous current contact 3 is brought into contact with the fixed continuous current contact 4 in the switched-on state.
  • the drivable continuous current contact 3 consists of an electrically conductive, metallic coating on the outside of the compression cylinder 5, which forms the drivable part of a mechanical compression device for the extinguishing gas.
  • the drivable compression cylinder 5 is pulled over a stationary compression piston 6 and the compression volume 7 formed between them is compressed.
  • the arcing contacts 1, 2 and the continuous current contacts 3, 4 are separated from one another, an arc being drawn between the arcing contacts 1, 2.
  • the extinguishing gas present in the arc space 8 is heated and flows through the gas channel 9 within the nozzle-shaped insulating material body 10 into a heating space 11.
  • This boiler room 11 is fixed and does not move when the switch is actuated. Expanded quenching gas is provided in the boiler room by the heat of the arc, which flows back to the arc space 8 to extinguish the arc in the zero current passage through the gas channel 9.
  • a check valve 12 is provided in the compression piston 6, which is formed by part of the insulating body 10 and part of the wall delimiting the heating chamber 11, which overflows hot extinguishing gas from the heating chamber 11 into the compression chamber 7 prevented.
  • Such an overflow of hot, pressurized extinguishing gas into the compression space 7 would namely slow down the switch drive, which causes the compression cylinder 5 on the one hand and the arcing contact 1 on the other hand and the continuous current contact 3 in the figure to be moved to the left toward the drive side.
  • the mechanically compressed extinguishing gas can flow from the compression space 7 via the check valve 12 into the heating space 11 in order to support the blowing of the arc.
  • the continuous current contact 3 consists only of a conductive coating, for example in the form of a sheet on the compression cylinder 5, and no individually stable construction is necessary for the continuous current contact, the entirety of the masses to be accelerated during the switching movement is reduced.
  • the compression cylinder 5 is connected to the drivable arcing contact piece 1 via a linkage 13 and is driven by the latter.
  • the compression cylinder can also consist entirely of metal, for example aluminum.
  • the heating chamber 11 is moved so far away from the arc chamber 8 toward the drive side that the compression cylinder 5 during the switch-off movement up to the stationary compression piston 6 can be moved back and forth from the separation distance.
  • the electrically conductive coating 3 of the compression cylinder 5 is drawn over the end face of the compression cylinder 5 and forms a field electrode in the switched-off state for uniformizing the electrical field between the arcing contacts or the continuous current contacts.
  • the insulating material nozzle 10, which has the gas flow channel 9, is arranged in a fixed manner in the region of the separating path and separates the region of the arc space 8 from the outer space of the interrupter unit, which in turn is enclosed, for example, by a porcelain housing (not shown). Only hot extinguishing gas is passed through the gas flow channel 9 into the heating volume 11.

Landscapes

  • Circuit Breakers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP96250107A 1995-05-24 1996-05-15 Disjoncteur pour haute tension avec chambre de réchauffement fixe Expired - Lifetime EP0744759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29509015U 1995-05-24
DE29509015U DE29509015U1 (de) 1995-05-24 1995-05-24 Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen

Publications (2)

Publication Number Publication Date
EP0744759A1 true EP0744759A1 (fr) 1996-11-27
EP0744759B1 EP0744759B1 (fr) 1999-08-11

Family

ID=8008806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96250107A Expired - Lifetime EP0744759B1 (fr) 1995-05-24 1996-05-15 Disjoncteur pour haute tension avec chambre de réchauffement fixe

Country Status (2)

Country Link
EP (1) EP0744759B1 (fr)
DE (2) DE29509015U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2369608A1 (fr) * 2010-03-26 2011-09-28 ABB Research Ltd. Disjoncteur haute tension
WO2012007447A1 (fr) * 2010-07-16 2012-01-19 Alstom Grid Sas Appareillage de chambre de coupure pour deux electrodes de contact confinees
EP3273463A1 (fr) * 2016-07-18 2018-01-24 General Electric Technology GmbH Commutateur électrique équipé d'une unité de soufflage de l'arc
US10984973B2 (en) 2017-07-31 2021-04-20 General Electric Technology Gmbh Electric switch provided with an arc-blasting unit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29509015U1 (de) * 1995-05-24 1995-08-03 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen
DE19613569A1 (de) * 1996-04-04 1997-10-09 Asea Brown Boveri Leistungsschalter
DE19627098A1 (de) * 1996-07-05 1998-01-08 Asea Brown Boveri Leistungsschalter
DE19641550A1 (de) * 1996-10-09 1998-04-16 Asea Brown Boveri Leistungsschalter
DE29803232U1 (de) * 1998-02-18 1998-04-16 Siemens Ag Hochspannungsleistungsschalter mit einem Isolierstoffkörper
DE29803380U1 (de) * 1998-02-20 1998-04-23 Siemens AG, 80333 München Hochspannungsleistungsschalter mit einem Isolierstoffkörper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239068A1 (fr) * 1986-03-26 1987-09-30 Gec Alsthom Sa Disjoncteur à gaz diélectrique sous pression
EP0475270A2 (fr) * 1990-09-11 1992-03-18 Asea Brown Boveri Ab Disjoncteur à haute tension à autosoufflage
EP0483840A2 (fr) * 1990-11-02 1992-05-06 Asea Brown Boveri Ab Disjoncteur à haute tension
WO1992014255A1 (fr) * 1991-01-31 1992-08-20 Siemens Aktiengesellschaft Commutateur a gas comprime
DE29509015U1 (de) * 1995-05-24 1995-08-03 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667348A5 (de) * 1985-05-07 1988-09-30 Sprecher Energie Ag Blasduesenanordnung an einem druckgasschalter.
DE3720816A1 (de) * 1987-06-24 1989-01-05 Licentia Gmbh Schalter mit selbsterzeugter loeschgasstroemung
DE3843406A1 (de) * 1988-03-25 1990-06-28 Licentia Gmbh Sf(pfeil abwaerts)6(pfeil abwaerts)-eindruckschalter
DE4343786C1 (de) * 1993-12-17 1995-02-23 Siemens Ag Hochspannungs-Leistungsschalter mit einer Feldelektrode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239068A1 (fr) * 1986-03-26 1987-09-30 Gec Alsthom Sa Disjoncteur à gaz diélectrique sous pression
EP0475270A2 (fr) * 1990-09-11 1992-03-18 Asea Brown Boveri Ab Disjoncteur à haute tension à autosoufflage
EP0483840A2 (fr) * 1990-11-02 1992-05-06 Asea Brown Boveri Ab Disjoncteur à haute tension
WO1992014255A1 (fr) * 1991-01-31 1992-08-20 Siemens Aktiengesellschaft Commutateur a gas comprime
DE29509015U1 (de) * 1995-05-24 1995-08-03 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2369608A1 (fr) * 2010-03-26 2011-09-28 ABB Research Ltd. Disjoncteur haute tension
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
US9524836B2 (en) 2010-07-16 2016-12-20 Alstom Technology Ltd. Arc-control chamber gear for two confined contact electrodes
EP3273463A1 (fr) * 2016-07-18 2018-01-24 General Electric Technology GmbH Commutateur électrique équipé d'une unité de soufflage de l'arc
US10984973B2 (en) 2017-07-31 2021-04-20 General Electric Technology Gmbh Electric switch provided with an arc-blasting unit

Also Published As

Publication number Publication date
EP0744759B1 (fr) 1999-08-11
DE29509015U1 (de) 1995-08-03
DE59602694D1 (de) 1999-09-16

Similar Documents

Publication Publication Date Title
DE69110499T2 (de) Lastschalter unterstützt durch Varistor.
DE1074119B (de) Wechsel Stromschalter
DE69115635T2 (de) SF6-Lastschalter mit eingebautem Kondensator
DE69109749T2 (de) Leistungsschalter mit eingebautem Varistor.
EP0744759B1 (fr) Disjoncteur pour haute tension avec chambre de réchauffement fixe
EP0016983A1 (fr) Disjoncteur à gaz comprimé autopneumatique
DE69208935T2 (de) Lastschalter mit parallel geschaltetem Widerstand
DE3107525C2 (de) Druckgas-Leistungsschalter
DE69109508T2 (de) Mittelspannungsschalter mit Selbstbeblasung.
EP1226597B1 (fr) Disjoncteur a gaz comprime
EP0039096A2 (fr) Commutateur à piston de soufflage
EP0763840B1 (fr) Disjoncteur à haute tension dans un boítier métallique isolé par gaz
DE4103119A1 (de) Druckgasschalter
DE939460C (de) Elektrischer Schalter
EP0290950A1 (fr) Disjoncteur à gaz comprimé
DE1913969A1 (de) Elektrischer Schalter
DE2208035B2 (de) Kontaktsystem für Druckgasschalter
DE69106436T2 (de) Mittelspannungsschalter.
DE4015179C2 (de) Druckgasschalter
DE4217232A1 (de) Elektrischer Hochspannungs-Leistungsschalter
DE2759264C3 (de) Kontaktsystem für Druckgas-Leistungsschalter, insbesondere Blaskolbenschalter, mit verbesserter Ausnutzung der für die Löschung vorgesehenen Löschgasmenge
DE2853201C2 (fr)
DE3321740A1 (de) Druckgasschalter
DE911280C (de) Elektrischer Schalter mit Lichtbogenloeschung durch ein stroemendes Druckmittel, wie Druckgas
EP0664551A2 (fr) Disjoncteur électrique pour H.T. avec chambre de réchauffement et un dispositif de compression

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19970107

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19981015

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 59602694

Country of ref document: DE

Date of ref document: 19990916

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990922

ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010511

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010522

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010720

Year of fee payment: 6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021203

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050515