EP0028039A1 - Disjoncteur à gaz comprimé - Google Patents

Disjoncteur à gaz comprimé Download PDF

Info

Publication number
EP0028039A1
EP0028039A1 EP80200920A EP80200920A EP0028039A1 EP 0028039 A1 EP0028039 A1 EP 0028039A1 EP 80200920 A EP80200920 A EP 80200920A EP 80200920 A EP80200920 A EP 80200920A EP 0028039 A1 EP0028039 A1 EP 0028039A1
Authority
EP
European Patent Office
Prior art keywords
contact
movable
current switching
switching element
extinguishing current
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
EP80200920A
Other languages
German (de)
English (en)
Other versions
EP0028039B2 (fr
EP0028039B1 (fr
Inventor
Guido Huser
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0028039A1 publication Critical patent/EP0028039A1/fr
Application granted granted Critical
Publication of EP0028039B1 publication Critical patent/EP0028039B1/fr
Publication of EP0028039B2 publication Critical patent/EP0028039B2/fr
Expired 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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • 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

Definitions

  • the present invention relates to a gas pressure switch according to the preamble of claim 1.
  • Such a switch is known, for example, from Brown Boveri Mitt. 64, 1977 (11) p. 629, Figure .2.
  • an insulating nozzle and the blowing cylinder of the compression device are attached to the movable extinguishing current switch, which must be moved together with the movable extinguishing current switch during each switching operation.
  • the relatively large moving masses cause unwanted contact bounce when switching on and delay when switching off the separation speed of the contacts.
  • the first part of the contact of the movable extinguishing current switching element which is designed as a stroke contact, meets the contact of the fixed extinguishing current switching element when it is switched on. Since the mass of this part is almost negligible compared to the masses of the movable extinguishing current switching element, the movable part of the compression device and the insulating nozzle, contact bouncing is almost avoided.
  • the second part of the stroke contact which is rigidly connected to the carrier part of the quenching current switching element, only serves to accommodate the base point of the switching arc, since this avoids unnecessary mechanical friction between the quenching contacts.
  • the switch according to the invention is characterized in that part of the drive energy required for switching off is already present in a charged spring accumulator, which means that when the switch is switched off, the extinguishing current switching pieces have a high separation speed and therefore a short arc duration. If the compressed gas switch according to the invention is designed in accordance with the features of patent claim 3, it is not only extremely easy to repair, but is also distinguished by the fact that the dynamic current forces that occur when switching on are almost completely eliminated.
  • the figure shows a plan view of a longitudinal section through the circuit breaker according to the invention, this switch being shown in the left half of the figure when switched on and in the right half of the figure when switched off.
  • the numbers 10 and 11 denote power connections of the pressure gas switch.
  • a spring-mounted nominal current contact 20 is connected to the current connection 10 and, in the switched-on state, leads the nominal current to the connection 11 via a movable nominal current contact 21, which is designed in the lower part as a blowing cylinder of a compression device.
  • a fixed, cylindrical extinguishing current switching piece 30 has a hollow carrier part 31 provided with openings 33 and a contact 32 attached to the end of the carrier part 31. With this fixed contact 32, a movable extinguishing current switching piece 40 is in front contact in the switched-on position.
  • the movable extinguishing current switching element 40 has a carrier part 41 provided with openings 43 and a stroke contact 42.
  • the stroke contact 42 has an axially displaceably arranged contact device in the interior of the carrier part 41, comprising a pressure ring 421 and contact finger 422, and an annular erosion ring 423 fastened to the end face of the carrier part 41 facing the fixed extinguishing current switching element 30.
  • the pressure ring 421 is provided with ball heads 424, which press the contact fingers 422 against the inner wall of the carrier part 41 under the action of a spring 50.
  • the inside diameter of the annular contact 423 is larger than the outside diameter of the contact 32 of the fixed extinguishing current switching element 30 and smaller than the outside diameter of the axially displaceably arranged contact device of the movable extinguishing current switching element 40.
  • 60 is a fixed blow piston, which, like the nominal current contact 21 connected to the carrier part 41 of the movable extinguishing current switching element 40 via conductive connecting webs 61, belongs to a compression device for compressed gas.
  • This compressed gas is passed through a channel 71 and an annular nozzle opening to the arc drawn when switching off.
  • the channel 71 and the annular nozzle opening are formed by the extinguishing current switching element 40 and an insulating material nozzle 70 surrounding the extinguishing current switching element 40 at a distance.
  • the arc is blown through the compressed gas flow which begins after the quenching current switching elements 30, 40 have been separated via the channel 71 and the annular nozzle opening.
  • This compressed gas flow is particularly intensive in that the compressed gas was precompressed before the two extinguishing flow switching pieces 30, 40 were separated. Since the contact fingers 422, like the contact 32, limit a nozzle-shaped opening, the arc base points are blown particularly intensively via the hollow carrier parts 31, 41 and the openings 33, 43 before the pressure gas is removed.
  • the drive of the movable extinguishing current switching element 30 is supported by the loaded spring 50, which acts in the switch-off direction, whereby a high separation speed of the extinguishing current switching pieces 30, 40 is achieved.
  • the movable extinguishing current switching piece 40 When switched on, the movable extinguishing current switching piece 40 is moved in the opposite direction. A switch-on arc that may occur is drawn between the erosion contact 423 and the fixed contact 32. When the contact fingers 422 strike the contact 32, this arc disappears. Since the contact fingers 422 and the pressure ring 421 are the only parts which are braked here, and since these parts have only a very low mass compared to the mass of the other moving parts and are also under the action of the now tensioned spring 50, there is no need Contact bounces almost completely. The repulsive forces caused by the inrush current are overcome by the force of the tensioned spring 50. After the switch-on process has ended, the spring 50 is charged with potential energy, which is now available again for the switch-off process.

Landscapes

  • Circuit Breakers (AREA)
EP80200920A 1979-10-25 1980-10-01 Disjoncteur à gaz comprimé Expired EP0028039B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9576/79 1979-10-25
CH957679 1979-10-25

Publications (3)

Publication Number Publication Date
EP0028039A1 true EP0028039A1 (fr) 1981-05-06
EP0028039B1 EP0028039B1 (fr) 1983-02-23
EP0028039B2 EP0028039B2 (fr) 1986-12-10

Family

ID=4353435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200920A Expired EP0028039B2 (fr) 1979-10-25 1980-10-01 Disjoncteur à gaz comprimé

Country Status (4)

Country Link
US (1) US4371766A (fr)
EP (1) EP0028039B2 (fr)
CA (1) CA1137531A (fr)
DE (2) DE2946715A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161036A3 (en) * 1984-05-10 1988-06-01 Sace S.P.A. Costruzioni Elettromeccaniche High-voltage electric switch with arc extinguishing device using self-generation of a quenching pressure
US4798924A (en) * 1987-05-13 1989-01-17 Bbc Brown Boveri & Co., Ltd. Compressed-gas breaker
EP0398213A1 (fr) * 1989-05-19 1990-11-22 Gec Alsthom Sa Disjoncteur à moyenne tension à courant nominal élevé
EP1158556A1 (fr) * 2000-05-25 2001-11-28 Alstom Buse isolante de soufflage pour disjoncteur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426561A (en) 1982-01-19 1984-01-17 Westinghouse Electric Corp. Puffer-type compressed-gas circuit-interrupter
US5059753A (en) * 1987-11-06 1991-10-22 Cooper Industries, Inc. SF6 puffer recloser
EP4664503A1 (fr) * 2024-06-12 2025-12-17 GE Vernova Technology GmbH Disjoncteur haute tension à contacts optimisés

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105959B (de) * 1959-02-06 1961-05-04 Liebknecht Transformat Kontaktanordnung fuer elektrische Schalter, insbesondere Druckgasschalter
DE1191465B (de) * 1963-09-06 1965-04-22 Siemens Ag Elektrischer Schalter fuer grosse Einschaltstroeme
DE2329501A1 (de) * 1972-06-12 1974-01-17 Hitachi Ltd Trennschalter mit lichtbogen-gasloeschung
DE2644421A1 (de) * 1976-09-30 1978-04-06 Siemens Ag Kontaktsystem fuer hochspannungsleistungsschalter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2273362A1 (en) * 1974-05-31 1975-12-26 Alsthom Cgee High voltage circuit breaker - has fixed contact with semi-mobile contact movable from mobile contact by spring
US4052577A (en) * 1975-09-02 1977-10-04 I-T-E Imperial Corporation Magnetically driven ring arc runner for circuit interrupter
US4229627A (en) * 1978-10-04 1980-10-21 Electric Power Research Institute, Inc. Gas puffer type current interrupter and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105959B (de) * 1959-02-06 1961-05-04 Liebknecht Transformat Kontaktanordnung fuer elektrische Schalter, insbesondere Druckgasschalter
DE1191465B (de) * 1963-09-06 1965-04-22 Siemens Ag Elektrischer Schalter fuer grosse Einschaltstroeme
DE2329501A1 (de) * 1972-06-12 1974-01-17 Hitachi Ltd Trennschalter mit lichtbogen-gasloeschung
DE2644421A1 (de) * 1976-09-30 1978-04-06 Siemens Ag Kontaktsystem fuer hochspannungsleistungsschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BROWN BOVERI MITT., Band 64, Nr. 11, 1977, Baden, R. SCHAUMANN et al.: "Das H-System-eine neue Generation von SF(6)-Mittel-spannungs-Schaltger{ten", Seiten 628 bis 630 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161036A3 (en) * 1984-05-10 1988-06-01 Sace S.P.A. Costruzioni Elettromeccaniche High-voltage electric switch with arc extinguishing device using self-generation of a quenching pressure
US4798924A (en) * 1987-05-13 1989-01-17 Bbc Brown Boveri & Co., Ltd. Compressed-gas breaker
EP0398213A1 (fr) * 1989-05-19 1990-11-22 Gec Alsthom Sa Disjoncteur à moyenne tension à courant nominal élevé
FR2647254A1 (fr) * 1989-05-19 1990-11-23 Alsthom Gec Disjoncteur a moyenne tension a courant nominal eleve
US4996398A (en) * 1989-05-19 1991-02-26 Gec Alsthom Sa Medium tension circuit breaking having high nominal current
EP1158556A1 (fr) * 2000-05-25 2001-11-28 Alstom Buse isolante de soufflage pour disjoncteur
FR2809531A1 (fr) * 2000-05-25 2001-11-30 Alstom Buse isolante de soufflage pour disjoncteur
US6483064B2 (en) 2000-05-25 2002-11-19 Alstom Insulating blast nozzle for a circuit breaker

Also Published As

Publication number Publication date
EP0028039B2 (fr) 1986-12-10
DE3062136D1 (en) 1983-03-31
CA1137531A (fr) 1982-12-14
DE2946715A1 (de) 1981-05-07
EP0028039B1 (fr) 1983-02-23
US4371766A (en) 1983-02-01

Similar Documents

Publication Publication Date Title
DE2209287C3 (de) Elektrischer Druckgasschalter
EP0313813B2 (fr) Interrupteur à gaz comprimé
DE2723552C2 (de) Elektrischer Druckgasschalter
EP2343721A1 (fr) Commutateur à haute tension isolé du gaz
EP0126929B2 (fr) Interrupteur à gaz comprimé
WO2012123032A1 (fr) Disjoncteur haute tension à isolation dans le gaz
DE742308C (de) Elektrischer Schalter mit Beblasung des Lichtbogens durch ein Druckmittel
EP0028039B1 (fr) Disjoncteur à gaz comprimé
DE2211617A1 (de) Druckgasschalter
CH625908A5 (fr)
CH624241A5 (fr)
EP0290950B1 (fr) Disjoncteur à gaz comprimé
EP0025833B1 (fr) Interrupteur à gaz comprimé
DE729599C (de) Schalter mit Lichtbogenloeschung mittels des durch einen Hilfslichtbogen erzeugten Druckes
DE69822369T2 (de) Leistungsschalter mit einem Einschaltwiderstand
WO1991015025A1 (fr) Disjoncteur pour coupure en charge a gaz comprime avec piston de compression commande
EP0035581B1 (fr) Disjoncteur à gaz comprimé
DE69708568T2 (de) Hochspannungs-Lastschalter mit Dämpfer
DE572812C (de) Schalter mit Lichtbogenloeschung durch stroemendes Druckgas
EP0000501B1 (fr) Disjoncteur à gaz comprimé
DE1913969A1 (de) Elektrischer Schalter
DE19939940A1 (de) Druckgasschalter
EP0508160B1 (fr) Interrupteur à gaz comprimé
EP0374384B1 (fr) Interrupteur monopression à SF6
DE3930548A1 (de) Schalter mit selbsterzeugter lichtbogenbeblasung

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

Designated state(s): CH DE FR IT

17P Request for examination filed

Effective date: 19810708

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BBC AKTIENGESELLSCHAFT BROWN, BOVERI & CIE.

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE FR IT LI

REF Corresponds to:

Ref document number: 3062136

Country of ref document: DE

Date of ref document: 19830331

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: MERLIN GERIN, S.A.

Effective date: 19831107

26 Opposition filed

Opponent name: SIEMENS AG, BERLIN UND MUENCHEN

Effective date: 19831125

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

Ref country code: FR

Payment date: 19841015

Year of fee payment: 5

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

Ref country code: CH

Payment date: 19841220

Year of fee payment: 5

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

Ref country code: DE

Payment date: 19841221

Year of fee payment: 5

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19861210

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): CH DE FR IT LI

ET3 Fr: translation filed ** decision concerning opposition
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19871031

Ref country code: CH

Effective date: 19871031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19880701

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: 19890630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST