EP0101564A2 - Sectionneur à pantographe - Google Patents

Sectionneur à pantographe Download PDF

Info

Publication number
EP0101564A2
EP0101564A2 EP83107096A EP83107096A EP0101564A2 EP 0101564 A2 EP0101564 A2 EP 0101564A2 EP 83107096 A EP83107096 A EP 83107096A EP 83107096 A EP83107096 A EP 83107096A EP 0101564 A2 EP0101564 A2 EP 0101564A2
Authority
EP
European Patent Office
Prior art keywords
contact
rocker
web
scissor
retaining
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
EP83107096A
Other languages
German (de)
English (en)
Other versions
EP0101564B1 (fr
EP0101564A3 (en
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.)
ASEA BROWN BOVERI AKTIENGESELLSCHAFT
Original Assignee
Brown Boveri und Cie AG Germany
Asea Brown Boveri AG Germany
BBC 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, BBC 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 scissors-like contact bars which, when switched on, take at least one elongated mating contact piece between them.
  • the mating 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 provided 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 quite high repulsive forces in this contact point.
  • the object of the invention is to provide a scissor-type circuit breaker in which the current densities are reduced and, moreover, the repulsive forces in the contact point be reduced.
  • This object is achieved in that are attached to the contact bars with the interposition of retaining springs.
  • Such a scissor disconnector is known per se.
  • the two contact strips are located on the counter contact, which is formed from two counter contact piece strips which can be pivoted relative to one another; There are contact rockers between the two mating contact strips, so that any misalignment of the mating contact is compensated for.
  • An advantageous embodiment of the invention can be that the retaining springs are C-shaped, the web being attached to the associated contact bar and the contact strips on the outer surface of one leg end running parallel to the web of the retaining spring.
  • the particular advantage of the embodiment according to the invention is that two parallel current paths are formed by the C-shape of the retaining springs, which cause the spring to spread and increase the contact force in particular in the event of a short circuit. This ensures that the repulsive forces in the contact point alone by the electr. Effects of the current can be reduced.
  • At least one rocker is located inside each retaining spring, the surface of which facing the associated contact contact bar is convex, so that the rocker can rock on the inner surface of the web of the retaining spring. Against the The side facing away from the contact spar then rests resiliently on the inner surface of the leg ends of the retaining spring.
  • the rocker is completely insulated and is 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.
  • a coating of several tenths of a thickness has to be applied.
  • Such misalignments can often occur, for example, when there are relatively large installation tolerances, when the mating contact is crooked under the influence of wind or in the event of a short circuit.
  • a scissor separator of conventional design is supported on an insulating column 10, on the top of which 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 counter contacts 34 and 36 between them.
  • the two contact bars 30 and 32 are box shaped and facing each other so that a flat side 34 and 36 of each contact spar 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 side 34 and 36 by means of a screw connection 42.
  • the two retaining springs 38 and 40 and the contact arrangement in the area of the contact spars are the same, so that it is sufficient if the invention is described with reference to the contact arrangement on the left contact spar 30.
  • the retaining spring 40 is thus C-shaped and has a web 44, the outer surface of which is fastened against the outer surface of the flat side 34 of the contact spar by means of the screw connection 42.
  • Circular arc-like sections 46 and 48 adjoin the web 44 on both sides, the web plane being exceeded in such a way that the center M of the two circular arc-like sections comes to lie in the plane of the web 44.
  • Leg ends 50 and 52 adjoin the two arcuate sections 46 and 48; the leg ends 50 and 52 run parallel to the web 44 towards one another and end at a distance A from one another.
  • the distance between the legs 50 and 52 from the plane in which the web 47 is located corresponds approximately to the radius of the arcuate section 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 are formed from copper material, the actual contact surface of the two contact strips 54 and 56 being formed by an insert 58 and 60 made of erosion-resistant material, which are inserted into a recess 62 and 64 in each contact strip.
  • screws 59 are provided to hold the contact strips on the contact springs; these 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 which faces the contact bar 30, is convex; in the illustrated embodiment it can be seen that the rocker surface is formed by two inclined surfaces 74 and 76 which have an arc-like transition in the region in which they merge.
  • the angle that the two inclined surfaces 74 and 76 make between them is an obtuse angle and is open towards the counter contact 36.
  • the rocker 70 On the surface or side opposite the convex rocker surface, the rocker 70 has two knob-like projections 78 and 80; these knob-like projections lie against the inner surface of the ends of the legs 50 and 52, respectively, and conversely 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, in which the head 84 of the screw 42 engages, as a result of which the rocker 70 is guided essentially immovably by means of the head inside the retaining spring 40.
  • the rocker is insulated with an insulating layer (without reference number). 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 continuous and several springs, in a special embodiment preferably six springs are connected in parallel or next to one another with the contact strips.
  • the rockers 70 are also continuous and - as mentioned - insulated from the contact strips or the retaining springs.
  • the retaining springs are attached to the contact strips by means of the screws 42, as mentioned above, and the distance A between the contact strips 54 and 56 and the mutually facing ends of the legs 50 and 52 is selected such that the screw 42 is from the right or from are accessible on 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, the retaining springs 40, where it divides into a current path through the circular arc 46 and the leg 50 to the contact strip 54 and a current path through the circular arc 48 and the leg 52 towards the contact strip 56.
  • the current therefore flows in a loop, which leads to a spreading of the retaining springs due to the electr.
  • Generated electricity electr. Field leads.
  • 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)
  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
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 true EP0101564A2 (fr) 1984-02-29
EP0101564A3 EP0101564A3 (en) 1986-10-29
EP0101564B1 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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE662863C (de) * 1933-05-19 1938-07-23 Hochspannungs App G M B H Trennschalterkontakt
US2733322A (en) * 1956-01-31 curtis
US2894101A (en) * 1958-01-20 1959-07-07 S & C Electric Co Switch contact construction
DE1074116B (de) * 1956-01-31 1960-01-28 Siemens Schuckertwerke Aktitr gesellschaft Berlin und Erlangen Emstutzer Scherentrennschalter
FR1290965A (fr) * 1961-03-08 1962-04-20 Comp Generale Electricite Sectionneur électrique à pantographe
CH422105A (de) * 1964-04-23 1966-10-15 Siemens Ag Einsäulentrennschalter
DE1265823B (de) * 1964-05-29 1968-04-11 Licentia Gmbh Kontaktanordnung fuer Schaltgeraete, insbesondere Selbstschalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (7)

* 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
CH422105A (de) * 1964-04-23 1966-10-15 Siemens Ag Einsäulentrennschalter
DE1265823B (de) * 1964-05-29 1968-04-11 Licentia Gmbh Kontaktanordnung fuer Schaltgeraete, insbesondere Selbstschalter

Also Published As

Publication number Publication date
ES282173Y (es) 1985-12-16
ES282173U (es) 1985-05-01
ATE38584T1 (de) 1988-11-15
DE3378441D1 (en) 1988-12-15
DE3231170A1 (de) 1984-02-23
EP0101564B1 (fr) 1988-11-09
EP0101564A3 (en) 1986-10-29

Similar Documents

Publication Publication Date Title
EP0107611A1 (fr) Dispositif de sectionnement avec lamelles de contact pontant pour appareil interrupteur débrochable
DE1563842B2 (de) Selbstschalter
EP0496213B1 (fr) Disjoncteur, notamment disjoncteur comportant un fusible
EP0056558A2 (fr) Plaque à fiches pour un interrupteur de sécurité à basse tension
EP0222684B1 (fr) Montage de contacts pour interrupteur à charge à basse tension avec des contacts principaux et des contacts d'amorçage d'arc
DE2756741A1 (de) Elektrisches schaltgeraet mit magnetischem kontaktdruckverstaerker
DE3539672A1 (de) Niederspannungs-leistungsschalter mit einer kontaktanordnung und klemmstellen
EP0186846A2 (fr) Ressort de contact pour un relais bistable pour la commutation de courants forts
EP1423862B1 (fr) Systeme de contacts de commutation comportant un dispositif destine a amplifier une force de contact s'exer ant entre des contacts de commutation
DE3413358A1 (de) Kontakteinrichtung zur aufnahme von schaltgeraeten
EP0101564B1 (fr) Sectionneur à pantographe
EP0358286B1 (fr) Ensemble conducteur articulé pour un levier de contact
DE10032653A1 (de) Anschlussschiene für elektrische Geräte und Apparate, für verschiedene Nennströme, mit einem Hohlraum
EP0633587B1 (fr) Cellule de commutation blindée à isolation gazeuse pour moyenne tension
EP3469611B1 (fr) Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication
EP1065683A2 (fr) Disjonteur avec des bornes pour plusieurs intensités nominales
EP0227585B1 (fr) Dispositif de sectionnement pour appareils interrupteurs montés d'une façon déplaçable sur glissières
DE1244910B (de) Greifervorrichtung fuer Einsaeulen-Scherentrennschalter
DE19629482C1 (de) Schaltkontaktanordnung mit einer Gelenkanordnung für einen Kontakthebel
DE102019214432B4 (de) Baugruppe für einen Hochspannungs-Leistungsschalter und entsprechender Hochspannungs-Leistungsschalter
DE2737021C3 (de) Trennschalter fur Niederspannung
DE3116543C2 (de) Scherentrennschalter
DE19830231B4 (de) Nennstromkontaktanordnung eines Leistungsschalters
DE2512481C3 (de) Kontaktanordnung eines elektrischen Mehrphasenschalters
DE3143752C2 (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