EP0168568B1 - Sectionneur, en particulier sectionneur monocolonne, à pantographe - Google Patents

Sectionneur, en particulier sectionneur monocolonne, à pantographe Download PDF

Info

Publication number
EP0168568B1
EP0168568B1 EP85105397A EP85105397A EP0168568B1 EP 0168568 B1 EP0168568 B1 EP 0168568B1 EP 85105397 A EP85105397 A EP 85105397A EP 85105397 A EP85105397 A EP 85105397A EP 0168568 B1 EP0168568 B1 EP 0168568B1
Authority
EP
European Patent Office
Prior art keywords
contact piece
isolating
piece
contact
auxiliary
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
EP85105397A
Other languages
German (de)
English (en)
Other versions
EP0168568A3 (en
EP0168568A2 (fr
Inventor
Alfred Dr.-Ing. Hartig
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.)
Ruhrtal Elektrizitatsgesellschaft Hartig GmbH and Co
Original Assignee
Ruhrtal Elektrizitatsgesellschaft Hartig GmbH and Co
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 Ruhrtal Elektrizitatsgesellschaft Hartig GmbH and Co filed Critical Ruhrtal Elektrizitatsgesellschaft Hartig GmbH and Co
Priority to AT85105397T priority Critical patent/ATE37118T1/de
Publication of EP0168568A2 publication Critical patent/EP0168568A2/fr
Publication of EP0168568A3 publication Critical patent/EP0168568A3/de
Application granted granted Critical
Publication of EP0168568B1 publication Critical patent/EP0168568B1/fr
Expired legal-status Critical Current

Links

Images

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
    • H01H9/14—Adaptation for built-in safety spark gaps
    • 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 an isolating switch, in particular a single-column scissor isolating switch, with a main contact system consisting of at least one main contact piece provided on isolating scissors or the like and at least one mating contact piece provided on a busbar or the like, and an auxiliary contact system which has at least one mechanically assigned to the mating contact piece.
  • auxiliary contact piece which is insulated from it and which interacts with the main contact piece, and an isolating contact system with two isolating contact pieces which is arranged electrically between the counter contact piece and the auxiliary contact piece, the opening of the main contact system first opening the isolating contact system and only then the auxiliary contact system, and at least between the counter contact piece and the auxiliary contact piece a potential equalization resistor is effective when the isolating contact system is open.
  • Disconnectors are designed based on their principle and according to the regulations applicable to their use for almost de-energized switching; Visible isolating paths are to be implemented with isolating switches. Disconnectors are disconnected by assigned circuit breakers. Disconnectors are also used when, for example, different busbars have to be switched among themselves. In principle, such switching operations are de-energized, but so-called commutation currents flow at relatively low voltages. In addition, the occurrence of displacement currents cannot be avoided in many cases when switching is basically de-energized. As a result, system-related and unavoidable switch-on and switch-off arcs sometimes occur even with disconnectors that generally switch off. '
  • isolating switches In the closed state, isolating switches must be able to carry very high currents, in particular also the currents which occur briefly in the event of a short circuit, namely until the associated circuit breaker is disconnected.
  • the main contact system of disconnectors consisting of at least one main contact piece and at least one counter contact piece must therefore always be in perfect condition.
  • an auxiliary contact system is provided in the disconnector from which the invention is based (DE-A-3 210 155) in addition to the main contact system.
  • the actual isolating distance of the auxiliary contact system i.e. the area in which the on and off arcs are to occur, is realized in a special isolating contact system.
  • the auxiliary contact piece is isolated from the counter contact piece when the disconnector is open, but the auxiliary contact piece and counter contact piece are connected to one another via the equipotential bonding resistor, the auxiliary contact piece immediately assumes the potential of the counter contact piece via the equipotential bonding resistor.
  • the invention is based on the object of designing and developing the isolating switch described above so that even when considerable potential differences between the mating contact piece and the auxiliary contact piece and thus at the equipotential bonding resistor occur when switching on, the equipotential bonding resistor is not destroyed.
  • the circuit breaker according to the invention in which the previously derived and stated object is achieved, is initially and essentially characterized in that a spark gap which limits its voltage stress is connected in parallel to the potential equalization resistor. This ensures that if there is a correspondingly high potential difference between the mating contact piece and the auxiliary contact piece and thus at the equipotential bonding resistor, there is a deliberate arcing over the spark gap, so that the equipotential bonding resistor is not overstressed in terms of voltage.
  • the teaching of the invention has been explained in connection with an isolating switch, in which the auxiliary contact system has at least one auxiliary contact piece mechanically assigned to the mating contact piece, insulated from it and interacting with the main contact piece, and an isolating contact system arranged electrically between the mating contact piece and the auxiliary contact piece.
  • the teaching of the invention can also be applied to an isolating switch in which the auxiliary contact system has at least one auxiliary contact piece which is mechanically assigned to the main contact piece, is insulated from it and interacts with the mating contact piece, and an isolating contact system which is arranged electrically between the main contact piece and the auxiliary contact piece.
  • the at least one auxiliary contact piece is not mechanically assigned to the mating contact piece but rather to the main contact piece and is insulated from it and interacts with the mating contact piece in a switching manner, the isolating contact system is therefore electrically arranged between the main contact piece and the auxiliary contact piece and consequently the equipotential bonding resistance between the main contact piece and the auxiliary contact piece is effective.
  • the spark gap in such a way that it has a small flashover delay. Since a spark gap has a larger flashover delay, the less the field strength that is set in it is constant - a peak-to-peak spark gap has a relatively large flashover delay - the goal of a small flashover delay can be achieved by forming the spark gap in such a way that sets a largely constant field strength in it.
  • the teaching of the invention can be implemented concretely in that the spark gap is formed by two flashover electrodes overlapping the connection ends of the equipotential bonding resistor. If the equipotential bonding resistor is cylindrical, it is advisable to make the flashover electrodes pot-shaped or bell-shaped. This «resistance encapsulation means that the equipotential bonding resistor is provided with a shield, particularly in the area of its particularly endangered connection ends.
  • FIG. 1 shows a schematic illustration and a detail of a disconnector 1 with a disconnect shear 2, which is only indicated half for simplicity reasons.
  • a main contact system 3 and an auxiliary contact system 4 can be seen.
  • the main contact system 3 consists of main contact pieces 5 provided on the disconnect shear 2 and one on a busbar 6 provided mating contact piece 7.
  • the auxiliary contact system 4 has auxiliary contact pieces 8 mechanically assigned to the counter contact piece 7, running parallel to it, insulated from the counter contact piece 7 and interacting with the main contact pieces 5, and an isolating contact system 9 with two electrically arranged between the counter contact piece 7 and the auxiliary contact pieces 8 Isolating contact pieces 10, 11.
  • the first isolating contact piece 10 is connected to the mating contact piece 7, which is otherwise fastened to the busbar 6 via support rings 12, while the second isolating contact piece 11 is insulated from the mating contact piece 7 and is connected to the auxiliary contact pieces 8. Otherwise, the isolating contact pieces 10, 11 are each provided with a contact head 13 made of erosion-resistant material.
  • the isolating contact system 9 first opens and only then does the auxiliary contact system 4.
  • the isolating contact pieces 10, 11 are biased in the opening direction by spring elements 14.
  • auxiliary contact pieces 8 and the isolating contact pieces 10, 11 are fastened to the mating contact piece 7 by means of two supports 15 made of electrically insulating material.
  • the auxiliary contact pieces 8 are articulated to the carrier 15.
  • the pivot levers 16, like the isolating contact pieces 10, 11, are provided with spring elements 17.
  • FIGS. 2 and 3 clearly show that the complete auxiliary contact system 4 can be removed from the mating contact piece 7 or placed on the mating contact piece 7.
  • the carriers 15 each consist of two half shells 19 connected to one another by screws 18.
  • a potential equalization resistor 20 is provided between the mating contact piece 7 and the auxiliary contact pieces 8.
  • the equipotential bonding resistor 20 is connected in parallel with a spark gap 21 which limits its voltage stress.
  • the spark gap 21 has a relatively small rollover delay.
  • the spark gap 21 is designed so that a largely constant field strength is established in it.
  • the spark gap 21 is formed by two flashover electrodes 24, 25 spanning the connection ends 22, 23 of the equipotential bonding resistor 20. Since the equipotential bonding resistor 20 is cylindrical, the flashover electrodes 24, 25 are cup-shaped to match the equipotential bonding resistor 20.

Landscapes

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

Claims (5)

1. Un sectionneur, particulièrement un sectionneur articulé à isolateur support unique, avec un système de contact principal (3) et un système de contact auxiliaire (4) se composant d'au moins une pièce de contact principale (5) prévue sur une cisaille (1) ou similaire et au moins une contre-pièce de contact (7) ou similaire prévue sur une barre collectrice (6) ou similaire qui présente au moins une pièce de contact auxiliaire (8) mécaniquement rattachée à la contre-pièce de contact (7) isolée par rapport à celle-ci et accouplée à la pièce de contact principale (5), et un système de contact de sectionnement (9) disposé électriquement entre la contre-pièce de contact (7) et la pièce de contact auxiliaire (8) avec deux pièces de contact de sectionnement (10, 11), après l'ouverture du système de contact principal (3) s'ouvre d'abord le système de contact de sectionnement (9) et seulement ensuite le système de contact auxiliaire (4) et par suite de quoi entre la contre-pièce de contact (7) et la pièce de contact auxiliaire (8) avec un système de contact de sectionnement (9) une résistance égalisatrice potentielle (20) est effective est caractérisé par le fait qu'à la résistance égalisatrice potentielle (20) est montée en parallèle un éclateur à étincelle (21) limitant sa contrainte de tension.
2. Un sectionneur d'après la Revendication 1, caractérisé par le fait qu'au moins une pièce de contact auxiliaire (8) n'est pas rattachée mécaniquement à la contre-pièce de contact (7), mais à la pièce de contact principal (5) et par rapport à celte-ci est isolée ainsi qu'accouplée à la contre-pièce de contact (7), le système de contact de sectionnement (9) est disposé électriquement entre la pièce de contact principale (5) et la pièce de contact auxiliaire (8) et par conséquent la résistance égalisatrice potentielle (20) est effective entre la pièce de contact principale (5) et la pièce de contact auxiliaire (8).
3. Un sectionneur d'après la Revendication 1 ou 2, caractérisé par le fait que l'éclateur à étincelle (21) a un retardement d'allumage insignifiant.
4. Un sectionneur d'après la Revendication 3 caractérisé par le fait que l'éclateur à étincelle (21) est formé de telle façon que s'y trouve une intensité du champ constante.
5. Un sectionneur d'après les Revendications 1 à 4 caractérisé par le fait que l'éclateur à étincelle (21) est formé de deux électrodes d'allumage (24, 25) recouvrant les raccords (22, 23) de la résistance égalisatrice potentielle (20).
EP85105397A 1984-05-21 1985-05-03 Sectionneur, en particulier sectionneur monocolonne, à pantographe Expired EP0168568B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105397T ATE37118T1 (de) 1984-05-21 1985-05-03 Trennschalter, insbesondere einsaeulenscherentrennschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3418837A DE3418837A1 (de) 1984-05-21 1984-05-21 Trennschalter, insbesondere einsaeulen-scherentrennschalter
DE3418837 1984-05-21

Publications (3)

Publication Number Publication Date
EP0168568A2 EP0168568A2 (fr) 1986-01-22
EP0168568A3 EP0168568A3 (en) 1986-11-05
EP0168568B1 true EP0168568B1 (fr) 1988-09-07

Family

ID=6236430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105397A Expired EP0168568B1 (fr) 1984-05-21 1985-05-03 Sectionneur, en particulier sectionneur monocolonne, à pantographe

Country Status (3)

Country Link
EP (1) EP0168568B1 (fr)
AT (1) ATE37118T1 (fr)
DE (2) DE3418837A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019213320A1 (de) * 2019-09-03 2021-03-04 Siemens Energy Global GmbH & Co. KG Einsäulen-Trennschalter mit Vakuum-Schaltröhre als Hilfskontaktsystem

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918666A (en) * 1960-04-20 1963-02-13 Welwyn Electric Ltd Improvements in electrical resistors
FR1272172A (fr) * 1960-08-12 1961-09-22 Globe Union Inc Dispositif électrique combiné formant résistance et capacité avec parafoudre incorporé, notamment pour antennes de télévision
GB1046183A (en) * 1964-05-12 1966-10-19 Welwyn Electric Ltd. Improvements in electrical resistors
DE2718188C3 (de) * 1977-04-23 1984-07-05 Dehn + Söhne GmbH + Co KG, 8500 Nürnberg Überspannungsschutzgerät
CH653473A5 (de) * 1981-02-18 1985-12-31 Sprecher & Schuh Ag Hochspannungstrennschalter mit einer schere.
DE3210155A1 (de) * 1982-03-19 1983-09-29 Ruhrtal Elektrizitätsgesellschaft Hartig GmbH & Co, 4300 Essen Trennschalter, insbesondere einsaeulen-scherentrennschalter
DE3235353A1 (de) * 1982-09-24 1984-03-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Hochspannungstrennschalter mit vorkontakten

Also Published As

Publication number Publication date
EP0168568A3 (en) 1986-11-05
EP0168568A2 (fr) 1986-01-22
DE3418837A1 (de) 1985-11-21
DE3564886D1 (en) 1988-10-13
ATE37118T1 (de) 1988-09-15
DE3418837C2 (fr) 1987-10-29

Similar Documents

Publication Publication Date Title
CH661615A5 (de) Trennschalter.
DE69115635T2 (de) SF6-Lastschalter mit eingebautem Kondensator
EP2936530B1 (fr) Disjoncteur
EP0515009B1 (fr) Interrupteur rotatif multiposition avec gas d'extinction
EP0168568B1 (fr) Sectionneur, en particulier sectionneur monocolonne, à pantographe
EP0198506B1 (fr) Appareil interrupteur à coupure dans l'air pour circuits à haute tension
EP0099970B1 (fr) Switchgear
EP1095389A1 (fr) Ensembles contacts d'un commutateur de courant
EP0360368B1 (fr) Montage de contact butant à levier pour interrupteur de puissance à basse tension avec des contacts principaux et des contacts d'amorçage d'arc
EP0283949B1 (fr) Sectionneur sous charge à plusieurs positions pour installations à haute et moyenne tension
DE102020205784A1 (de) Schaltgerät mit Kommutierungsstrompfad
DE19813217C1 (de) Löschspule für gasisolierte Lasttrennschalter
EP0104599B1 (fr) Sectionneur haute tension avec contacts préliminaires
EP0212136B1 (fr) Disposition d'interrupteur de mise à la terre pour installations à haute tension
EP3659223A1 (fr) Système comprenant un dispositif de commutation à isolation gazeuse
EP0358287A2 (fr) Elément-moteur pour un disjoncteur électrique multipolaire de puissance basse tension
EP1098418A2 (fr) Limiteur de surtension pour réseau de basse tension
DE3412449C2 (fr)
WO1992007373A1 (fr) Interrupteur-separateur
DE3116543C2 (de) Scherentrennschalter
DE69305147T2 (de) Kontaktvorrichtung
DE19503237A1 (de) Mehrpolige Anordnung von Überspannungsschutzelementen in elektrischen Mehrleitersystemen
DE7144074U (de) Vakuumschalter mit einer Leistungs sicherung
WO1990015428A1 (fr) Systeme de contacts pour sectionneurs a levier
EP0156171B1 (fr) Système de contre-contact pour un sectionneur pantographe

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 BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19851203

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19870105

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 37118

Country of ref document: AT

Date of ref document: 19880915

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3564886

Country of ref document: DE

Date of ref document: 19881013

ITF It: translation for a ep patent filed

Owner name: ING. A. GIAMBROCONO & C. S.R.L.

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890418

Year of fee payment: 5

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

Ref country code: GB

Payment date: 19890430

Year of fee payment: 5

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

Ref country code: LU

Payment date: 19890524

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19890529

Year of fee payment: 5

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19890531

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

Ref country code: GB

Effective date: 19900503

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

Ref country code: SE

Effective date: 19900504

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

Ref country code: BE

Effective date: 19900531

BERE Be: lapsed

Owner name: RUHRTAL-ELEKTRIZITATSG- HARTIG G.M.B.H. & CO.

Effective date: 19900531

GBPC Gb: european patent ceased through non-payment of renewal fee
EUG Se: european patent has lapsed

Ref document number: 85105397.5

Effective date: 19910115

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

Ref country code: AT

Payment date: 19950504

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: 19951115

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: 19960503

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

Ref country code: LI

Effective date: 19960531

Ref country code: CH

Effective date: 19960531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Payment date: 19970506

Year of fee payment: 13

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

Ref country code: NL

Payment date: 19970513

Year of fee payment: 13

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19981201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Payment date: 20020514

Year of fee payment: 18

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031202