EP1903589B1 - Sectionneur à coupure en charge de sécurité doté d'une boîte d'extinction d'arc - Google Patents

Sectionneur à coupure en charge de sécurité doté d'une boîte d'extinction d'arc Download PDF

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Publication number
EP1903589B1
EP1903589B1 EP20070115175 EP07115175A EP1903589B1 EP 1903589 B1 EP1903589 B1 EP 1903589B1 EP 20070115175 EP20070115175 EP 20070115175 EP 07115175 A EP07115175 A EP 07115175A EP 1903589 B1 EP1903589 B1 EP 1903589B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
light arc
switch
safety circuit
arc chamber
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.)
Not-in-force
Application number
EP20070115175
Other languages
German (de)
English (en)
Other versions
EP1903589A3 (fr
EP1903589A2 (fr
Inventor
Gerhard Blaimer
Steffen Scudlo
Alfred Stang
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
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1903589A2 publication Critical patent/EP1903589A2/fr
Publication of EP1903589A3 publication Critical patent/EP1903589A3/fr
Application granted granted Critical
Publication of EP1903589B1 publication Critical patent/EP1903589B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate

Definitions

  • the invention relates to a fuse switch disconnector with at least one fixedly arranged on the switch fixed contact part, with a arranged on a handle pivotally mounted on the fuse switch disconnect contact blade is contacted and at least one hollow arc chamber whose interior is divided into three subspaces, wherein the arc chamber in Switch opening direction is arranged above each one fixed contact part of a switching phase of the fuse switch-disconnector, so that when the switch opening the contact blade enters the arc chamber.
  • a generic fuse switch-disconnector is known from German Utility Model G 92 08 693.4.
  • This fuse switch disconnector consists of a base with the receptacle contacts for the blades of low-voltage high-performance fuses.
  • the low-voltage high-performance fuses are held in a fuse holder via retaining lugs.
  • the fuse holder is connected to the lower part via a swivel joint.
  • the receptacle contacts are covered by a cover. Slots for inserting the knives are inserted in the cover.
  • the cover is equipped with an outwardly closed, slot-shaped arc guide having an outlet opening.
  • the fuse switch disconnector When the fuse switch disconnector is opened, the fuse holder is disconnected from the base by pulling the contact blades out of the receptacle contacts while moving the fuse holder. The resulting arc enters the slot-shaped arc guide. One part emerges from the outlet opening, another part is deflected into Lichtbogenumlenkwaitn.
  • the EP 1 302 957 A also shows a NH fuse switch-disconnector with a switch cover, which is designed to open and close the switch-disconnector and to which the NH fuses are attached.
  • contact tulips are fixed, each receiving a contact blade of the NH fuses.
  • Each contact tulip is provided with a contact protection, which has an opening for performing the contact blade.
  • the contact tulips are surrounded on both sides by extinguishing plates which are connected to one another via a web. In the web two longitudinal slots for the discharge of ionized gases are formed, which lie on both sides of a centrally arranged longitudinal ridge.
  • the invention has for its object to provide a fuse switch disconnectors available that ensures a high switching capacity while reducing a risk of short circuit in a simple structural design.
  • a fuse switch-disconnector with at least one fixed contact part fixed to the switch is provided, with which a contact blade arranged pivotably on a handle part on the fuse switch-disconnector can be contacted.
  • the fuse switch-disconnector has at least one hollow arc chamber whose interior is subdivided into three subspaces, wherein the arc chamber is arranged in the switch opening direction above one fixed contact part of a switching phase of the fuse switch disconnector, so that when the switch opening the contact blade enters the arc chamber.
  • Each of the three subspaces has at least one slot in one of its outer walls.
  • a fuse switch-disconnector with three phases to be switched thus three chambers are provided, each having three slots for venting.
  • a fuse switch-disconnector with three phases to be switched thus has a total of nine ventilation slots.
  • the arc chamber is arranged on the lower part, that is to say the contact blade on the grip part passes through the arc chamber.
  • the arc chamber can have a slot on the side opposite the ventilation slots or on its upper side, through which a respective contact blade arranged on the handle part can be passed.
  • the gases are controlled discharged into the environment. This ensures that the concentration of gases within the chamber and outside the chamber is in each case so large that a short circuit is avoided inside and outside the chamber and a user is not exposed to excessive concentration of vapors.
  • these slots also cause a directional specification of the outflowing gases, so that they do not hit adjacent contacts. This makes it possible that the distances between the individual phase contacts and thus also the outer dimensions of the fuse switch-disconnector can be kept low.
  • the slots are parallel to the orientation of the respective fixed contact part. That means that when perpendicular to the lower part arranged fixed contact parts, the slots in the outer walls of the subspaces of the arc chamber also perpendicular to the lower part or to its cover.
  • the arc chamber comprises three subspaces, a main space running in alignment with the fixed contact part, and two side rooms adjacent to the main space, which form the deflection chambers.
  • this has an opening in the lower region of the main chamber, which preferably has the shape of a slot adapted to the contour of the contact blade.
  • the two adjacent side rooms in the direction of the fixed contact part can be closed.
  • the two, the main chamber sibling, lateral deflection chambers, however, are closed at the bottom.
  • the two adjacent side rooms are open in the direction of the fixed contact part.
  • the main chamber is completely open at the bottom and the two secondary chambers designed as deflecting chambers are also open at the bottom.
  • This constructive simple design causes a reduction in manufacturing costs and an additional gas removal option from the secondary chambers. The gases can thus escape from the said slots of the subspaces and flow out downwards.
  • the slots are arranged in the wall of the arc chamber, which faces away from the contact blade.
  • separating walls for the directed discharge of gases are arranged between the individual arc chambers. These partitions, together with the slots which determine the outflow direction of the gases from the arc chamber, a targeted discharge of the gases in such a way that they can not flow from the contact of a phase to contact an adjacent phase and thus allow arcing.
  • the fuse switch-disconnector on a cover, in which the arc chambers of each phase are integrated.
  • This cover is preferably detachably connected to the fixed contact part having switch part, so the lower part of the fuse switch disconnector.
  • the arc chambers and their slots are arranged such that in the closed switch position, the slots are covered by the handle and only after a pivotal movement of the handle in a position in which the contacts are open, are exposed , That means, that the slots do not extend over the entire height of a wall of a subspace of the arc chamber, but substantially at the upper end, that is, close to the arc chamber upwardly delimiting wall, are arranged.
  • the fuse switch disconnector shown in the drawings consists of the lower part 1 with the fixed contact parts 2 for the contact blades 3 of the fuses 4.
  • the fuses 4 are held in a grip part 5 on the retaining lugs 6.
  • the handle part 5 is connected to the lower part 1 via a not-shown known rotary joint.
  • the fixed contact parts 2 are covered by a cover 7.
  • slots 8 are introduced for insertion of the contact blades 3.
  • the cover 7 is equipped with an arc chamber 9.
  • the arc chamber 9 has ventilation slots 10.
  • a main space 91 and adjacent auxiliary spaces 92 are provided as Lichtbogenumlenkhuntn into which a part of the resulting arc or its gases can be deflected and thus contribute to proper arc extinguishing.
  • the handle 5 is located with an area in front of the slots 10. They are only after significant opening of the circuit breaker to the free Outlet of the gases released.
  • 7 partition walls 15 are provided on the outside of the cover, which flank the outlet opening 10 laterally.
  • FIG. 3 are in the perspective view of the cover 7 and the lower part 1 three arc chambers 9 shown.
  • the arc chambers 9 are separated from each other by a respective partition wall 15.
  • Each of the arc chambers 9 has on one side a slot 8 for the passage of the contact blade 3.
  • the arc chamber additionally has three vertically arranged ventilation slots 10.
  • Each of these three slots 10 is in each case assigned to a partial interior 91, 92 of the arc chamber.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (4)

  1. Sectionneur à coupure en charge de sécurité, ayant des parties ( 2 ) formant contact fixe, qui sont montées sur les sectionneurs et par lesquelles une lame ( 3 ) de contact, montée sur une partie ( 5 ) de préhension pivotante sur le sectionneur à coupure en charge, peut être mise en contact, comprenant trois chambres ( 9 ) vides d'extinction d'arc, les chambres ( 9 ) d'extinction d'arc étant disposées dans le sens d'ouverture du sectionneur respectivement d'une façon telle sur une partie ( 2 ) formant contact fixe d'une phase à connecter du sectionneur à coupure en charge de sécurité que, lors de l'ouverture du sectionneur, la lame ( 3 ) de contact pénètre respectivement dans la chambre ( 9 ) d'extinction d'arc, et comprenant au moins une fente ( 10 ) dans la paroi ( 11 ) extérieure, opposée à la lame ( 3 ) de contact pénétrante, de la chambre ( 9 ) d'extinction d'arc,
    caractérisé en ce que les espaces intérieurs des chambres ( 9 ) d'extinction d'arc sont subdivisés respectivement en trois sous-espaces ( 91, 92 ), les deux sous-espaces ( 92 ) latéraux se trouvant à l'extérieur étant ouverts ou fermés dans la direction de la partie ( 2 ) formant contact fixe, en ce que chacun des trois sous-espaces a une fente ( 10 ) dans la paroi ( 11 ) extérieure, opposée à la lame ( 3 ) de contact pénétrante, de la chambre ( 9 ) d'extinction d'arc et en ce que les fentes ( 10 ) s'étendent parallèlement à l'orientation de la partie ( 2 ) de contact fixe respective.
  2. Sectionneur à coupure en charge de sécurité suivant l'une des revendications précédentes, caractérisé en ce que des cloisons ( 15 ) pour l'évacuation dirigée de gaz sont disposées entre les diverses chambres ( 9 ) d'extinction d'arc.
  3. Sectionneur à coupure en charge de sécurité suivant l'une des revendications précédentes, caractérisé en ce que les chambres ( 9 ) d'extinction d'arc sont intégrées dans un recouvrement ( 7 ), qui peut être relié de manière amovible à la partie du sectionneur à coupure en charge de sécurité ayant la partie ( 2 ) formant contact fixe.
  4. Sectionneur à coupure en charge de sécurité suivant l'une des revendications précédentes, caractérisé en ce que les chambres ( 9 ) d'extinction d'arc et les fentes ( 10 ) sont disposées de manière à ce que, dans la position fermée du sectionneur, les fentes ( 10 ) soient recouvertes par la partie ( 5 ) de préhension et ne sont dégagées qu'après que, par un mouvement de pivotement, la partie ( 5 ) de préhension vient dans une position dans laquelle les contacts sont ouverts.
EP20070115175 2006-09-21 2007-08-29 Sectionneur à coupure en charge de sécurité doté d'une boîte d'extinction d'arc Not-in-force EP1903589B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006044658 2006-09-21

Publications (3)

Publication Number Publication Date
EP1903589A2 EP1903589A2 (fr) 2008-03-26
EP1903589A3 EP1903589A3 (fr) 2009-01-14
EP1903589B1 true EP1903589B1 (fr) 2014-10-01

Family

ID=38562918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070115175 Not-in-force EP1903589B1 (fr) 2006-09-21 2007-08-29 Sectionneur à coupure en charge de sécurité doté d'une boîte d'extinction d'arc

Country Status (1)

Country Link
EP (1) EP1903589B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044390B3 (de) * 2007-09-18 2009-02-26 Wöhner GmbH & Co. KG Elektrotechnische Systeme Sicherungslasttrennschalter mit doppeltem Berührungsschutz für veränderbare Anschlussrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1301383B (de) * 1966-06-16 1969-08-21 Schneider Schaltgeraete Messertrennschalter, insbesondere Sicherungstrennschalter, mit Schutzabdeckung
DE9208693U1 (de) * 1992-06-29 1993-10-28 Siemens AG, 80333 München Sicherungstrennschalter
DE9404155U1 (de) * 1994-03-11 1994-04-28 Siemens AG, 80333 München Sicherungstrennschalter
DE29804247U1 (de) * 1998-03-10 1998-05-07 Siemens AG, 80333 München Sicherungstrennschalter
EP1302957B1 (fr) * 2001-10-11 2014-01-22 Weber Ag Dispositif de contact haute puissance basse tension
DE20316027U1 (de) * 2003-10-18 2004-01-15 Moeller Gmbh Elektrisches Schaltgerät mit Einrichtung zur Lichtbogenlöschung

Also Published As

Publication number Publication date
EP1903589A3 (fr) 2009-01-14
EP1903589A2 (fr) 2008-03-26

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