EP0101564B1 - Sectionneur à pantographe - Google Patents

Sectionneur à pantographe Download PDF

Info

Publication number
EP0101564B1
EP0101564B1 EP83107096A EP83107096A EP0101564B1 EP 0101564 B1 EP0101564 B1 EP 0101564B1 EP 83107096 A EP83107096 A EP 83107096A EP 83107096 A EP83107096 A EP 83107096A EP 0101564 B1 EP0101564 B1 EP 0101564B1
Authority
EP
European Patent Office
Prior art keywords
contact
pantograph
rocker
holding
spar
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
EP83107096A
Other languages
German (de)
English (en)
Other versions
EP0101564A3 (en
EP0101564A2 (fr
Inventor
Gerhard Körner
Horst Plettner
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 AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
Asea Brown Boveri AG Germany
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 Brown Boveri und Cie AG Germany, Asea Brown Boveri AG Germany filed Critical Brown Boveri und Cie AG Germany
Priority to AT83107096T priority Critical patent/ATE38584T1/de
Publication of EP0101564A2 publication Critical patent/EP0101564A2/fr
Publication of EP0101564A3 publication Critical patent/EP0101564A3/de
Application granted granted Critical
Publication of EP0101564B1 publication Critical patent/EP0101564B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
    • H01H31/36—Contact moved by pantograph

Definitions

  • the invention relates to a scissor disconnector with two scissor-like movable contact bars, which in the switched-on state take at least one elongated mating contact piece between them, contact strips extending parallel to the contact bars being attached to the contact bars with the interposition of retaining springs.
  • the counter contact and the contact bars are cylindrical. This results in a single contact between one contact bar and one counter contact, which also applies if two counter contacts are arranged one above the other. These single contacts or single current transitions lead to a high current density in the contact point and this results in high repulsive forces in this contact point due to the effect of the electric current.
  • the object of the invention is to develop a disconnector of the type mentioned in such a way that, in addition to reducing the current densities per contact point on the contact bar, the repulsive forces at the contact point are reduced.
  • the retaining springs are approximately C-shaped and the web of each C-shaped retaining spring is attached to the associated contact bar and a contact strip on the outer surface of each of the two legs of the retaining spring running parallel to the web.
  • a U-shaped power supply itself has also become known from DE-C-662 863. However, this is not a scissor-type disconnect switch, but a switch provided with a disconnect knife, and the U-shaped design of the mating contact has the task of compensating tolerances on the disconnect knife in addition to the so-called loop formation. This known configuration is also not comparable with the solution according to the invention.
  • At least one rocker is located inside each retaining spring, the surface of which facing the associated contact bar is convex, so that the rocker can rock on the inner surface of the web of the retaining spring.
  • the inner surface of the leg ends of the retaining spring then rests against the side facing away from the contact bar.
  • the rocker is completely insulated and coated on all sides with an outdoor-resistant plastic.
  • the plastic must be applied in such a way that it is not mechanically pushed through. For this purpose, a coating of several tenths of a millimeter thick must be applied.
  • This insulation has the advantage that compensating currents between the contact strips, which may be at different potential, can be avoided via the rocker; Such compensation currents would then have the consequence that there would be additional current transitions in the area of contact between the retaining springs and the rocker. Such additional current transitions are then avoided by the insulation.
  • Such misalignments can often occur, for example, when there are relatively large installation tolerances or when the mating contact is crooked due to wind or a short circuit.
  • a scissor disconnector which has two contact strips per contact spar, which are carried by retaining springs which have a shape due to which the contact force is increased in the event of a short circuit.
  • a scissor separator in a conventional design is supported on an insulating column 10, on the other Top of a gear box 12 for the two scissor members 14 and 16 is arranged.
  • the two scissor members 14 and 16 each have a lower rod 20 which can be driven via an axis 18 and which is connected to an upper rod 24 by means of a joint 22; the upper rod 24 is articulated to the upper rod 26 of the other scissor arm 16 by means of an axis 28.
  • the actual contact bars 30 and 32 are molded, which take two mating contacts 34 and 36 between them.
  • the two contact bars 30 and 32 are box-shaped and face each other in such a way that a flat side of each contact bar faces the counter-contact piece 36.
  • a plurality of C-shaped retaining springs 38 and 40 are fastened on the outer surface of the flat sides by means of a screw connection 42.
  • the retaining springs 38 and 40 and the contact arrangement in the area of the contact bars are mirror-symmetrical, so that it is sufficient if the contact arrangement on the left contact bar 30 is described.
  • the C-shaped retaining spring 40 has a web 44, the outer surface of which is fastened to the outer flat side of the contact bar 30 by means of the screws 42.
  • the web 44 is adjoined on both sides by arcuate sections 46 and 48 which intersect the web plane in such a way that the center points M of the two arcuate sections lie in the plane of the web 44.
  • Legs 50 and 52 adjoin the two arcuate sections 46 and 48, which in the process run parallel to the web 44 and end at a distance A from one another.
  • the distance between the legs 50 and 52 from the plane in which the web 44 is located is equal to the radius of the arcuate sections 46 and 48.
  • contact strips 54 and 56 are fastened by means of screws 59.
  • the contact strips 54 and 56 overlap the entire contact area of the contact bars 30 and 32 in such a way that both contact strips bear against the mating contact pieces 34 and 36.
  • the contact strips 54 and 56 are approximately rectangular and made of copper, the actual contacting surfaces of the two contact strips 54 and 56 being formed by inserts 58 and 60 made of erosion-resistant material, which are inserted into recesses 62 and 64 of the contact strips.
  • the screws 59 provided for holding the contact strips 54, 56 on the contact springs 40 are accessible through corresponding recesses in the area of the web 44.
  • a rocker 70 is located inside each retaining spring.
  • the rocker surface 72 facing the contact bar 30 is convex; in the illustrated embodiment it can be seen that the rocker surface 72 is formed by two inclined surfaces 74 and 76 which have an arcuate transition in the area in which they merge. The angle between the two inclined surfaces 74 and 76 is obtuse and open towards the counter-contact piece 36.
  • the rocker surface opposite the convex rocker surface 72 has two knob-like projections 78 and 80, which abut the inner surfaces of the ends of the legs 50 and 52, respectively, or the leg ends 50 and 52 press against the knobs 78 and 80 due to their spring force.
  • the rocker also has a through-opening 82 into which the head 84 of the screw 42 engages, as a result of which the rocker 70 is guided in the interior of the C-shaped retaining spring 40 in an essentially non-displaceable manner.
  • the seesaw is encased in an insulating sleeve. This sheathing prevents equalizing currents between the contact strips 54 and 56 through the rocker 70 in the event that the contact strips are at different potentials for some reason.
  • the strips 54 and 56 are connected continuously and several C-shaped springs, preferably six springs in a particular exemplary embodiment, are connected in parallel or next to one another with the contact strips.
  • the rockers 70 insulated from the contact strips 54, 56 and the retaining springs 40 are also continuous.
  • the distance A of the contact strips 54 and 56 and the mutually facing end of the legs 50 and 52 is selected so that the screws 42 are accessible from the right or from the left for screwing onto the contact bar.
  • the screws are expediently designed as so-called Allen screws.
  • the contact strips 54 and 56 can be moved relative to one another by means of the rocker, so that an inclined position of the mating contacts 34 and 36 is compensated for.
  • the current flows from the contact bars 30 and 32 to the web 44 of the retaining springs 40 and divides there into a current path through the arc 46 and the leg 50 to the contact strip 54 on the one hand and a current path through the arc 48 and the snail 52 to the contact strip 56 on the other hand.
  • the current therefore flows in the holding springs 40 in a loop, which leads to a spreading of the holding springs due to the magnetic fields generated by the electrical current.
  • the contact forces between the contact strips 54 and 56 and the mating contact 36 are thus greatly increased, particularly in the event of a short circuit.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Slide Switches (AREA)
  • Push-Button Switches (AREA)

Claims (5)

1. Sectionneur pantographe, avec deux mâchoires de contact (30, 32) qui sont mobiles l'une par rapport à l'autre à la manière de branches de pince et qui, en condition de fermeture, enserrant entre elles au moins une pièce de contact conjuguée de forme oblongue (36), des barrettes de contact (54, 56) parallèles aux mâchoires de contact étant disposées sur celles-ci avec interposition de ressorts de maintien (38, 40) caractérisé par le fait que les ressorts de maintien (38, 40) sont sensiblement en forme de C et que l'âme (44) de chaque ressort de maintien en forme de C est fixée à la mâchoire de contact y afférente (30, 32) et chaque barrette de contact (54, 56) est fixée à la surface extérieure de chacune des deux ailes (50, 52) du resort de maintien qui sont parallèles à l'âme.
2. Sectionneur pantographe selon revendication 1, caractérisé par le fait qu'il est prévu, à l'intérieur de chaque ressort de maintien (38, 40), au moins une bascule (70) dont la surface (72) tournée vers la mâchoire de contact conjuguée (30, 32) est convexe, de sorte que la bascule peut basculer sur la surface intérieure de l'âme (44) du ressort de maintien (38, 40), et par le fait que les surfaces intérieures des extrémités des ailes (50, 52) du ressort de maintien s'appliquent élastiquement contre le côté de la bascule éloigné de la mâchoire de contact.
3. Sectionneur pantographe selon revendication 2, caractérisé par le fait que des saillants du genre bouton (82), séparés par un intervalle, sont formés sur le côté de la bascule (70) éloigné de la mâchoire de contact (30, 32), ces saillants étant à chaque fois au contact de la surface intérieure des extrémités des ailes (50, 52) du ressort de maintien conjugué (38, 40).
4. Sectionneur pantographe selon l'une des revendications 2 ou 3, caractérisé par le fait que la bascule (70) présente au moins une ouverture de passage (82) dans laquelle s'engage la tête de la vis (42) de fixation des ressorts de maintien (38, 40) à la mâchoire de contact (30, 32).
5. Sectionneur pantographe selon l'une des revendication 2 à 4, caractérisé par le fait que la bascule (70) est agencée dans les ressorts de maintien (38, 40) en étant complètement isolée.
EP83107096A 1982-08-21 1983-07-20 Sectionneur à pantographe Expired EP0101564B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83107096T ATE38584T1 (de) 1982-08-21 1983-07-20 Scherentrennschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823231170 DE3231170A1 (de) 1982-08-21 1982-08-21 Scherentrennschalter
DE3231170 1982-08-21

Publications (3)

Publication Number Publication Date
EP0101564A2 EP0101564A2 (fr) 1984-02-29
EP0101564A3 EP0101564A3 (en) 1986-10-29
EP0101564B1 true EP0101564B1 (fr) 1988-11-09

Family

ID=6171422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107096A Expired EP0101564B1 (fr) 1982-08-21 1983-07-20 Sectionneur à pantographe

Country Status (4)

Country Link
EP (1) EP0101564B1 (fr)
AT (1) ATE38584T1 (fr)
DE (2) DE3231170A1 (fr)
ES (1) ES282173Y (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016214377B4 (de) * 2016-08-03 2018-10-25 Siemens Aktiengesellschaft Kontaktarmanordnung für ein Hochspannungs-Schaltgerät und deren Verwendung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733322A (en) * 1956-01-31 curtis
DE662863C (de) * 1933-05-19 1938-07-23 Hochspannungs App G M B H Trennschalterkontakt
DE1074116B (de) * 1956-01-31 1960-01-28 Siemens Schuckertwerke Aktitr gesellschaft Berlin und Erlangen Emstutzer Scherentrennschalter
US2894101A (en) * 1958-01-20 1959-07-07 S & C Electric Co Switch contact construction
FR1290965A (fr) * 1961-03-08 1962-04-20 Comp Generale Electricite Sectionneur électrique à pantographe
DE1490559A1 (de) * 1964-04-23 1969-07-10 Siemens Ag Einsaeulenstrennschalter
DE1265823B (de) * 1964-05-29 1968-04-11 Licentia Gmbh Kontaktanordnung fuer Schaltgeraete, insbesondere Selbstschalter
DE2809499A1 (de) * 1978-03-06 1979-09-13 Licentia Gmbh Hochspannungstrennschalter
CH627025A5 (en) * 1978-04-14 1981-12-15 Sprecher & Schuh Ag Contact arrangement for a pantograph disconnecter switch
DE2839914A1 (de) * 1978-09-14 1980-03-27 Bbc Brown Boveri & Cie Trennschalter mit einem haupt- und einem abreisskontakt
DE3048795A1 (de) * 1980-12-23 1982-07-15 Brown, Boveri & Cie Ag, 6800 Mannheim Gegenkontakt fuer einen scherentrenner
DE3103356A1 (de) * 1981-01-31 1982-08-19 Ruhrtal Elektrizitätsgesellschaft Hartig GmbH & Co, 4300 Essen Trennschalter mit lichtbogen-hilfskontakt

Also Published As

Publication number Publication date
ATE38584T1 (de) 1988-11-15
EP0101564A3 (en) 1986-10-29
ES282173Y (es) 1985-12-16
EP0101564A2 (fr) 1984-02-29
DE3231170A1 (de) 1984-02-23
DE3378441D1 (en) 1988-12-15
ES282173U (es) 1985-05-01

Similar Documents

Publication Publication Date Title
DE3884557T2 (de) Ausschaltanordnung für mehrphasenleistungsschalter mit drehbarem Doppelkontakt.
DE4040060C2 (de) Schiebeschalter
DE3517659C2 (de) Leistungsschalter
DE1563842B2 (de) Selbstschalter
EP0496213B1 (fr) Disjoncteur, notamment disjoncteur comportant un fusible
WO2021013767A1 (fr) Dispositif de limitation de tension comportant un commuteur
EP0222684B1 (fr) Montage de contacts pour interrupteur à charge à basse tension avec des contacts principaux et des contacts d'amorçage d'arc
DE4306011C2 (de) Einschub-Leistungsschalter
EP0101564B1 (fr) Sectionneur à pantographe
DE2756741A1 (de) Elektrisches schaltgeraet mit magnetischem kontaktdruckverstaerker
EP0223732A1 (fr) Disjoncteur multipolaire de puissance basse tension avec barres de courant
WO2021058231A1 (fr) Ensemble pour disjoncteur haute tension, et disjoncteur haute tension correspondant
DE3413358A1 (de) Kontakteinrichtung zur aufnahme von schaltgeraeten
DE3513908C2 (de) Freiluftschaltgerät für Hochspannungsschaltanlagen
DE102021120390B3 (de) Schaltgerät mit hoher Kurzschlussfestigkeit und niedrigem Übergangswiderstand
EP0358286B1 (fr) Ensemble conducteur articulé pour un levier de contact
EP3770934B1 (fr) Appareil de commutation et dispositif de limitation de tension doté d'un appareil de commutation
WO2003023800A1 (fr) Systeme de contacts de commutation comportant un dispositif destine a amplifier une force de contact s'exerçant entre des contacts de commutation
EP0633587B1 (fr) Cellule de commutation blindée à isolation gazeuse pour moyenne tension
EP0310885B1 (fr) Contacteur électrique
EP0227585B1 (fr) Dispositif de sectionnement pour appareils interrupteurs montés d'une façon déplaçable sur glissières
DE1244910B (de) Greifervorrichtung fuer Einsaeulen-Scherentrennschalter
DE2737021C3 (de) Trennschalter fur Niederspannung
DE2938885C2 (de) Last- oder Leistungsschalter
DE3307606C2 (fr)

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): AT CH DE FR GB LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR GB LI NL

17P Request for examination filed

Effective date: 19861229

17Q First examination report despatched

Effective date: 19870402

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB LI NL

REF Corresponds to:

Ref document number: 38584

Country of ref document: AT

Date of ref document: 19881115

Kind code of ref document: T

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ASEA BROWN BOVERI AKTIENGESELLSCHAFT

REF Corresponds to:

Ref document number: 3378441

Country of ref document: DE

Date of ref document: 19881215

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: ASEA BROWN BOVERI AKTIENGESELLSCHAFT TE MANNHEIM-K

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: AT

Payment date: 19920525

Year of fee payment: 10

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

Ref country code: GB

Payment date: 19930623

Year of fee payment: 11

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

Ref country code: FR

Payment date: 19930708

Year of fee payment: 11

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

Ref country code: CH

Payment date: 19930713

Year of fee payment: 11

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

Ref country code: DE

Payment date: 19930715

Year of fee payment: 11

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

Ref country code: AT

Effective date: 19930720

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

Ref country code: NL

Payment date: 19930731

Year of fee payment: 11

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

Ref country code: GB

Effective date: 19940720

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

Ref country code: LI

Effective date: 19940731

Ref country code: CH

Effective date: 19940731

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

Ref country code: NL

Effective date: 19950201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940720

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

Ref country code: FR

Effective date: 19950331

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: 19950401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST