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EP0981147A2 - Commutateur de puissance - Google Patents

Commutateur de puissance Download PDF

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Publication number
EP0981147A2
EP0981147A2 EP96810378A EP96810378A EP0981147A2 EP 0981147 A2 EP0981147 A2 EP 0981147A2 EP 96810378 A EP96810378 A EP 96810378A EP 96810378 A EP96810378 A EP 96810378A EP 0981147 A2 EP0981147 A2 EP 0981147A2
Authority
EP
European Patent Office
Prior art keywords
contact
contact arrangement
circuit breaker
arrangement
bridge
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.)
Withdrawn
Application number
EP96810378A
Other languages
German (de)
English (en)
Other versions
EP0981147A3 (fr
Inventor
Lutz Dr. Niemeyer
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Publication of EP0981147A2 publication Critical patent/EP0981147A2/fr
Publication of EP0981147A3 publication Critical patent/EP0981147A3/fr
Withdrawn legal-status Critical Current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
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers

Definitions

  • the invention relates to a circuit breaker according to the Preamble of claim 1.
  • the Extinguishing chamber is usually with a power path and provided with a nominal current path.
  • the power track shows at least one fixed and one moving contact on.
  • the quenching chamber can be single-blown or with a Double-blown chamber can be formed.
  • the quenching chamber is designed as a self-blown chamber, where the energy of the arc is for quenching the same necessary blowing pressure generated in one Blow volume is saved until one promising blowing of the arc is possible. On particularly rapid pressure build-up in the blowing volume is achieved, if the arc in one of the known measures in Rotation is set.
  • FIG. 1 shows a first, greatly simplified partial section through an extinguishing zone 1 of the extinguishing chamber of a circuit breaker according to the invention in the switched-on state.
  • This quenching chamber is filled with an insulating medium, for example with gaseous sulfur hexafluoride (SF 6 ).
  • the quenching chamber has a longitudinal axis 2, around which a fixed contact arrangement 3 and also a movable contact arrangement 4 are arranged centrally symmetrically.
  • the movable contact arrangement 4 is actuated in the axial direction by a drive (not shown).
  • the contact bridge 5 When switched on, as shown in Fig.1, is the fixed contact arrangement 3 via a contact bridge 5 electrically conductive with the movable contact arrangement 4 connected.
  • the contact bridge 5 consists of an electrical conductive metal, it is in the shape of a contact finger educated. It is possible to make this contact bridge 5 in one Install contact basket, it can also consist of several in parallel arranged contact fingers exist.
  • the contact bridge 5 is rotatable in a schematically illustrated holder 6 stored.
  • the bracket 6 can be resilient, wherein the contact bridge 5 pressed perpendicular to the longitudinal axis 2 to a sufficiently large contact force of the contact bridge 5 to reach.
  • the contact bridge 5 has a support point 7 on that in the on state on the movable Contact arrangement 4 rests.
  • the contact bridge 5 has one further support point 8, which in the switched-on state rests on the fixed contact arrangement 3.
  • a tension spring 9 is attached, which a force on the Exercises contact bridge 5, the direction of which by an arrow 10 is indicated.
  • the pivot point of the bracket 6 is chosen so that contact forces generated by electrodynamic forces Support 8 of the contact bridge 5 more on the fixed contact arrangement 3 press than this at the Support 7, which on the movable contact arrangement 4th presses the case is.
  • a schematically indicated wall 11 encloses annular blow volume 12, the inner Limiting the outside of the fixed contact arrangement 3 forms.
  • the current path for the through the closed Extinguishing chamber flowing alternating current leads when the Circuit breakers for comparatively small nominal currents is designed from the fixed contact arrangement 3 the support point 8 in the contact bridge 5 and through this and the support point 7 into the movable Contact arrangement 4. If the circuit breaker and thus the Arcing chamber designed for comparatively large nominal currents is parallel to the current path described above, usually arranged outside and concentric to it, separate nominal current path provided. From this nominal current path the alternating current to be switched off commutates with the initiation of the Shutdown in a known manner to that described above Current path.
  • the Parts that are stressed by arcing foot points can also be used erosion-resistant, made of electrically conductive material Covers should be provided. For these covers preferably tungsten copper used, but it can also Graphite can be used.
  • FIG 2 shows the extinguishing zone 1 shown in FIG Extinguishing chamber in a first intermediate position shortly after the movable contact arrangement 4 when moving in the direction an arrow 13 detached from the contact bridge 5 while doing so has drawn an arc 14.
  • a comparatively large switch-off current is to be interrupted become.
  • Electrodynamic forces act on the tension spring 9 the contact bridge 5 counteracted force, so that Contact bridge 5 remains in the same position as in activated state of the extinguishing chamber, the support point 8 remains in contact with the fixed contact arrangement 3.
  • the arc energy of the arc 14 heats the gas in the Extinguishing zone 1 strongly and thus creates a sufficiently large Gas pressure.
  • the pressurized gas flows into the blowing volume 12 from where it is stored until one promising blowing of the arc 14 is possible.
  • the arc energy of this low current arc 14 is not enough to ensure successful blowing necessary, sufficiently large amount of pressurized gas produce.
  • the arc energy of this additional Auxiliary arc 15 heats the gas in its environment and generates an additional amount of pressurized gas.
  • the pressurized gas generated by the arc 14 now flows together with the through the Auxiliary arc 15 generated pressurized gas in the Blow volume 12 from where it is stored until one promising blowing of the arc 14 is possible.
  • the force of the tension spring 9 is set so that it is only in the current range can move the contact bridge 5, in which the Generation of an amount sufficient for blowing pressurized gas not by the arc 14 alone more is guaranteed.
  • the auxiliary arc 15 occurs accordingly only on when the generation of pressurized gas must be supported by the arc 14 to a ultimately successful power cut ensure.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP96810378A 1995-07-03 1996-06-10 Commutateur de puissance Withdrawn EP0981147A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19524217 1995-07-03
DE19524217A DE19524217A1 (de) 1995-07-03 1995-07-03 Leistungsschalter

Publications (2)

Publication Number Publication Date
EP0981147A2 true EP0981147A2 (fr) 2000-02-23
EP0981147A3 EP0981147A3 (fr) 2000-03-08

Family

ID=7765906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810378A Withdrawn EP0981147A3 (fr) 1995-07-03 1996-06-10 Commutateur de puissance

Country Status (4)

Country Link
US (1) US5770828A (fr)
EP (1) EP0981147A3 (fr)
CN (1) CN1146058A (fr)
DE (1) DE19524217A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19830231B4 (de) * 1998-07-07 2008-10-23 Abb Research Ltd. Nennstromkontaktanordnung eines Leistungsschalters
JP4066336B2 (ja) * 2002-10-29 2008-03-26 オムロン株式会社 スイッチ装置
US8138440B2 (en) * 2006-08-21 2012-03-20 Arcoline Ltd. Medium-voltage circuit-breaker
CN103653499A (zh) * 2013-12-31 2014-03-26 苏州市职业大学 多功能蓝牙头盔
CN104258526B (zh) * 2014-10-21 2016-11-30 重庆昆旺电子有限责任公司 家用充电防火防爆装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633093A1 (de) * 1976-07-20 1978-01-26 Siemens Ag Elektrischer schalter mit geschlossenem gasraum
US4843199A (en) * 1986-12-08 1989-06-27 Bbc Brown, Boveri Ag Gas-blast circuit breaker

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL68754C (fr) * 1941-09-25
US2636961A (en) * 1951-11-09 1953-04-28 Gen Electric Electric circuit breaker
BE635385A (fr) * 1962-07-26
DE1490475B2 (de) * 1963-10-11 1970-06-25 Siemens AG, 1000 Berlin u. 8000 München: Druckgas schalter
DE1928079U (de) * 1965-07-06 1965-12-02 Licentia Gmbh Schaltkontaktanordnung, insbesondere einfahrkontakt.
CH474876A (de) * 1968-11-05 1969-06-30 Bbc Brown Boveri & Cie Elektrische Kontaktanordnung
CH574673A5 (fr) * 1974-08-20 1976-04-15 Bbc Brown Boveri & Cie
CH632609A5 (de) * 1977-03-24 1982-10-15 Mitsubishi Electric Corp Stromunterbrecher mit lichtbogenloeschendem gas.
CA1097396A (fr) * 1977-03-24 1981-03-10 Masami Kii Traduction non-disponible
US4205209A (en) * 1979-02-07 1980-05-27 Societe Anonyme Dite: Delle-Alsthom Articulated contact finger
DE3141324C2 (de) * 1981-10-17 1986-02-06 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Leistungsschalter
DE3344094A1 (de) * 1983-12-02 1985-06-13 Siemens AG, 1000 Berlin und 8000 München Elektrischer druckgasschalter
GB8519740D0 (en) * 1985-08-06 1985-09-11 Ashley Accessories Ltd Mains electrical accessories
US4759776A (en) * 1986-12-08 1988-07-26 Air Products And Chemicals, Inc. Polytrialkylgermylpropyne polymers and membranes
FR2661550B1 (fr) * 1990-04-26 1992-06-12 Alsthom Gec Disjoncteur a haute tension a arc serie.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633093A1 (de) * 1976-07-20 1978-01-26 Siemens Ag Elektrischer schalter mit geschlossenem gasraum
US4843199A (en) * 1986-12-08 1989-06-27 Bbc Brown, Boveri Ag Gas-blast circuit breaker

Also Published As

Publication number Publication date
DE19524217A1 (de) 1997-01-09
US5770828A (en) 1998-06-23
EP0981147A3 (fr) 2000-03-08
CN1146058A (zh) 1997-03-26

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