EP0011122B1 - Kontaktanordnung für Druckgasschalter - Google Patents

Kontaktanordnung für Druckgasschalter Download PDF

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Publication number
EP0011122B1
EP0011122B1 EP79103804A EP79103804A EP0011122B1 EP 0011122 B1 EP0011122 B1 EP 0011122B1 EP 79103804 A EP79103804 A EP 79103804A EP 79103804 A EP79103804 A EP 79103804A EP 0011122 B1 EP0011122 B1 EP 0011122B1
Authority
EP
European Patent Office
Prior art keywords
tubular
contact
tubular component
arc
nozzle body
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.)
Expired
Application number
EP79103804A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0011122A1 (de
Inventor
Rüdiger Dr. rer. nat. Hess
Heiner Marin
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
Priority to AT79103804T priority Critical patent/ATE599T1/de
Publication of EP0011122A1 publication Critical patent/EP0011122A1/de
Application granted granted Critical
Publication of EP0011122B1 publication Critical patent/EP0011122B1/de
Expired legal-status Critical Current

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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
    • H01H33/70—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
    • H01H33/91—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 the arc-extinguishing fluid being air or gas
    • 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
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle
    • H01H33/7053—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle having a bridging element around two hollow tubular contacts

Definitions

  • the invention relates to a contact arrangement for compressed gas switches with a tubular contact piece and an axially associated contact piece, between which an arc is drawn when switched off under load, which is blown by a compressed gas flow, the tubular contact piece on the end face and a nozzle body inside has tubular component made of ferromagnetic material at a distance.
  • the invention has for its object to develop the contact arrangement of the type mentioned in such a way that the switching capacity is increased by increasing the breaking currents, in particular under conditions of the short-circuit.
  • this object is achieved in that the inner circumferential surface of the tubular component is conical and is adapted to the contour of the nozzle body in such a way that the conical contour of the nozzle opening, which widens from the end face of the nozzle body, is continued by that of the tubular component.
  • the arc behavior on the one hand and the guidance of the quenching gas flow on the other hand are improved, so that the breaking capacity is increased.
  • a particularly advantageous embodiment with regard to simple manufacture consists in that the tubular component is fixed in position with the contact piece by a screw connection.
  • the electrically conductive connection necessary for guiding the arc during the switch-off process is advantageously ensured in that the tubular component and the nozzle body are connected to one another in an electrically conductive manner by the contact piece.
  • the nozzle bodies, which are generally made of graphite, and the tubular components, which are advantageously made of magnetic steel, with their different expansion coefficients which become effective under arcing stress, do not mechanically come into direct connection.
  • tubular components are of identical design.
  • the figure shows a section of a contact system for a compressed gas switch designed as a blow piston switch.
  • the contact system consists of two fixed contact pieces 1, 2 arranged on a common axis, which bear nozzle bodies 3, 4 made of graphite on their mutually facing end faces.
  • the two contact pieces 1 and 2 are bridged in the switch-on position shown in the figure by a tubular bridging switching piece 5, which surrounds a plurality of spring-loaded contact fingers 6 which are arranged distributed over the circumference of the contact pieces 1 and 2.
  • a blow cylinder 8 is simultaneously moved with the tubular bypass switching element 5, which compresses the compressed gas contained in the interior 9 by pulling it over the piston 10 which is arranged essentially in a fixed manner.
  • the inner lateral surface 12 of the tubular component 11 is conical and adapted to the contour of the nozzle body 3, 4, such that the conical contour of the nozzle opening 3b, 4b, which widens from the end face 3a, 4a of the nozzle body 3, 4, from that of the tubular component 11 is continued.
  • the tubular component 11 is fixed in its position by a screw connection 14 with the contact piece 1, the tubular component 11 and the nozzle body 3 and 4 being connected to one another in an electrically conductive manner by the contact piece 1 and 2 are.
  • the nozzle body 3, 4 and the tubular component 11 are seated on an annular intermediate body 15 which is screwed to the contact piece 1.
  • the contact arrangement is provided with two tubular components 11 of identical design.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Processing Of Solid Wastes (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
EP79103804A 1978-11-02 1979-10-04 Kontaktanordnung für Druckgasschalter Expired EP0011122B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103804T ATE599T1 (de) 1978-11-02 1979-10-04 Kontaktanordnung fuer druckgasschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2847808A DE2847808C2 (de) 1978-11-02 1978-11-02 Kontaktanordnung für Druckgasschalter
DE2847808 1978-11-02

Publications (2)

Publication Number Publication Date
EP0011122A1 EP0011122A1 (de) 1980-05-28
EP0011122B1 true EP0011122B1 (de) 1982-01-20

Family

ID=6053833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103804A Expired EP0011122B1 (de) 1978-11-02 1979-10-04 Kontaktanordnung für Druckgasschalter

Country Status (9)

Country Link
US (1) US4321439A (enrdf_load_stackoverflow)
EP (1) EP0011122B1 (enrdf_load_stackoverflow)
JP (1) JPS5564320A (enrdf_load_stackoverflow)
AT (1) ATE599T1 (enrdf_load_stackoverflow)
BR (1) BR7907123A (enrdf_load_stackoverflow)
CA (1) CA1133549A (enrdf_load_stackoverflow)
DE (1) DE2847808C2 (enrdf_load_stackoverflow)
MX (1) MX146682A (enrdf_load_stackoverflow)
ZA (1) ZA795865B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028421A1 (de) * 1990-09-04 1992-03-05 Siemens Ag Druckgasisolierter hochspannungsschalter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8029069U1 (de) * 1980-10-30 1988-05-26 Siemens AG, 1000 Berlin und 8000 München Druckgasschalter
DE3124075A1 (de) * 1981-03-30 1982-09-16 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Hochspannungsschaltkammer
GB2214646B (en) * 1988-01-13 1991-10-02 Post Office Weighing apparatus
EP3002309B1 (en) 2014-09-30 2017-01-11 Henkel AG & Co. KGaA Compositions comprising a fiber material and a thermoplastic binder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148004B (de) * 1959-07-09 1963-05-02 Licentia Gmbh Leistungsschalter mit duesenfoermiger Ausstroemoeffnung
US3590188A (en) * 1966-09-01 1971-06-29 Westinghouse Electric Corp Fluid-blast circuit interrupter with piston assembly and electromagnetic driving means
DE2234067C3 (de) * 1972-07-07 1982-06-16 Siemens AG, 1000 Berlin und 8000 München Kontaktsystem für druckgasisolierte Hochspannungsschaltgeräte
DE2336684A1 (de) * 1973-07-19 1975-01-30 Bbc Brown Boveri & Cie Druckgasschalter
GB1511791A (en) * 1976-02-18 1978-05-24 Ass Elect Ind Contact members for gas blast interrupters
GB1559498A (en) * 1976-05-04 1980-01-23 Ass Elect Ind Gas-blast circuit breakers
DE2624595C3 (de) * 1976-05-28 1980-01-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Kontaktanordnung für Druckgasschalter
DE2626245C3 (de) * 1976-06-10 1982-12-09 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung für Druckgasschalter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028421A1 (de) * 1990-09-04 1992-03-05 Siemens Ag Druckgasisolierter hochspannungsschalter

Also Published As

Publication number Publication date
ZA795865B (en) 1980-10-29
ATE599T1 (de) 1982-02-15
MX146682A (es) 1982-07-27
CA1133549A (en) 1982-10-12
EP0011122A1 (de) 1980-05-28
US4321439A (en) 1982-03-23
DE2847808A1 (de) 1980-05-08
JPH0114652B2 (enrdf_load_stackoverflow) 1989-03-13
DE2847808C2 (de) 1986-04-10
BR7907123A (pt) 1980-09-16
JPS5564320A (en) 1980-05-15

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