EP0203373A1 - Sectionneur - Google Patents

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Publication number
EP0203373A1
EP0203373A1 EP86105619A EP86105619A EP0203373A1 EP 0203373 A1 EP0203373 A1 EP 0203373A1 EP 86105619 A EP86105619 A EP 86105619A EP 86105619 A EP86105619 A EP 86105619A EP 0203373 A1 EP0203373 A1 EP 0203373A1
Authority
EP
European Patent Office
Prior art keywords
contact
separating knives
disconnector according
switch
knives
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Withdrawn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
EP86105619A
Other languages
German (de)
English (en)
Inventor
Jürg Ischi
Jörg Peter
Stanislaus Ruffieux
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0203373A1 publication Critical patent/EP0203373A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H1/42—Knife-and-clip contacts
    • 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
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
    • 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
    • H01H1/42—Knife-and-clip contacts
    • H01H2001/425—Knife-and-clip contacts with separate contact pressure spring confined between two contact knifes and urging the knifes onto a mating contact

Definitions

  • the invention is based on a disconnector according to the first part of patent claim 1.
  • Such a switch is known for example from Swiss patent 441 466.
  • the known switch has a double separating knife which can be rotated about a fixed axis and which, in the switched-on position, comprises a convex fixed contact from the outside. With this switch, the double separating knife is spread out by means of a wedge during a switching operation, which enables safe switching with minimal drive torque.
  • the invention as characterized in the claims, achieves the object of specifying a disconnector of the generic type, in which a safe switching is ensured in a simple manner.
  • the disconnector according to the invention is distinguished by the fact that it is extremely cost-effective when the current is routed optimally. Its functionality is also guaranteed outside the manufacturing and installation-related tolerance range of comparable switches.
  • the isolating switch shown in FIG. 1 and preferably provided for switching medium voltages has a fixed contact 1 shown in dashed lines and a movable contact 3 rotatable about a fixed axis 2.
  • the fixed contact 1 is electrically conductively connected directly to a power connection 4, while the movable contact 3 is in an electrically conductive connection to a power connection 7 via a fixed ball contact 5 and a contact carrier 6 holding the ball contact 5.
  • An actuating rod 8 made of insulating material is articulated in the center of the movable contact 3, which in turn is articulated on a crank arm 9 of a crank which can be rotated about a fixed axis 10.
  • the structure of the fixed 1 and the movable contact 3 and the ball contact 5 are shown in Figures 2 to 4. It can be seen from these figures that the fixed contact 1 is spherical and has contact surfaces oriented in the direction of movement of the movable contact 1.
  • the movable contact 3 is designed as a double knife and contains two separating knives 12, 13.
  • the separating knives 12, 13 are held together under pressure by means of an elastic tensioning element 14 attached approximately the same distance from the ends of the separating knives 12, 13.
  • the tensioning element 14 contains a screw 16 guided essentially parallel to the axis 2 and secured by a nut 15, and two compression springs biased by screw 16 and nut 15 and supported on the separating knives 12 and 13, respectively 17 and 18.
  • These compression springs are each housed in one of two material recesses 19, 20 embedded in the outer sides of the separating knives 12, 13.
  • the screw 16 also serves as a bearing for the actuating rod 8 which is rotatably mounted between the two separating knives 12, 13.
  • two stops 21 and 22 are provided in the region of the free end of the movable contact 3 facing away from the axis 2, which stops the movement of both separating knives 12, 13 caused by the tensioning element 14 against one another when the disconnector is open limit in such a way that there is sufficient distance between their free ends in order to safely drive onto the fixed contact 1 when the disconnector is switched on.
  • the ball contact 5 has two ring-shaped closed contact surfaces 23, 24 lying on the surface of a ball and two guide pins 25 and 26 adjoining the one of the contact surfaces 23 and 24. These guide pins 25, 26 extend in opposite directions along the axis 2 running through the center of the ball.
  • the ball contact 5 is mounted in two bearing pans, each of which is embedded in one of the two mutually facing sides of the separating knives 12, 13.
  • Fig. 3 one of these bearing pans is shown enlarged.
  • the bearing socket shown has a contact surface 27 which is adapted to the contact surface 24 of the ball contact 5, supports it and is designed as a spherical zone, and a cylindrical depression 28 which adjoins the narrow edge of this contact surface 27 and serves to receive the guide pin 26.
  • the guide pin 26 is clearly slightly spaced on all sides from the boundary of the recess 28, so that the axis 2 is rotated and thus the two separating knives 12, 13 are pivoted on all sides is possible from the centered position by an angle ⁇ of a few degrees (dashed axis 2).
  • the two guide pins 25, 26, on the one hand enable the two separating knives 12, 13 to rotate securely when switching and, on the other hand, prevent the ball contact 5 from possibly disengaging from the bearing pans embedded in the separating knives 12, 13. If the two separating knives 12, 13 are moved to the fixed contact 1 (FIG. 4) when switched on or to the grounding contact 11 when grounding, the pivoting of the two separating knives 12 and 13 by the angle .alpha. Is possible regardless of installation and manufacturing tolerances of the contacts always linear contacting of fixed contact 1 and separating knives 12 and 13. It is therefore possible to produce the separating knives 12, 13 as inexpensive pressed bodies.
  • the required contact force for the current transfer from the fixed contact 1 to the separating knife 12, 13 or from the separating knife 12, 13 to the ball contact 5 is generated by the elastic clamping element 14.

Landscapes

  • Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP86105619A 1985-05-20 1986-04-23 Sectionneur Withdrawn EP0203373A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH213585 1985-05-20
CH2135/85 1985-05-20

Publications (1)

Publication Number Publication Date
EP0203373A1 true EP0203373A1 (fr) 1986-12-03

Family

ID=4226689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105619A Withdrawn EP0203373A1 (fr) 1985-05-20 1986-04-23 Sectionneur

Country Status (3)

Country Link
EP (1) EP0203373A1 (fr)
JP (1) JPS61267209A (fr)
ES (1) ES296972Y (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485306A1 (fr) * 1990-11-06 1992-05-13 Schneider Electric Sa Interrupteur rotatif multipolaire
WO2002080206A3 (fr) * 2001-03-30 2002-12-05 Grupo Ormazabal Sa Bloc de lames de contact pour interrupteurs de court-cirtuit de moyenne tension
EP1688979A3 (fr) * 2005-02-08 2007-08-22 General Electric Canada Sectionneur
WO2010106126A1 (fr) 2009-03-20 2010-09-23 Areva T&D Canada Inc. Conducteur simplifié pour appareillage electrique et appareillage electrique comportant au moins un tel conducteur
WO2011018810A1 (fr) * 2009-08-13 2011-02-17 Areva T&D Italy S.P.A. Sectionneur électrique à deux colonnes
US9396895B2 (en) 2011-10-18 2016-07-19 Alstom Technology Ltd. Lightweight conductor for electrical equipment and electrical equipment including at least one such conductor
CN110853968A (zh) * 2018-08-21 2020-02-28 西安西电高压开关有限责任公司 一种隔离开关及其静触头的密封复位装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105206464B (zh) * 2015-08-17 2017-12-15 平高集团威海高压电器有限公司 三工位隔离接地开关及使用该开关的gis设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1774377A (en) * 1928-07-19 1930-08-26 William R Huttinger Switch contact
DE1159069B (de) * 1960-10-12 1963-12-12 Sachsenwerk Licht & Kraft Ag Elektrischer Schalter mit schwenkbaren Doppeltrennmessern
CH441466A (de) * 1965-09-09 1967-08-15 Siemens Ag Trennschalter
FR2296252A1 (fr) * 1974-12-23 1976-07-23 Acec Ensemble de contact fixe et de contact mobile pour changeur de prise en charge de transformateur electrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1774377A (en) * 1928-07-19 1930-08-26 William R Huttinger Switch contact
DE1159069B (de) * 1960-10-12 1963-12-12 Sachsenwerk Licht & Kraft Ag Elektrischer Schalter mit schwenkbaren Doppeltrennmessern
CH441466A (de) * 1965-09-09 1967-08-15 Siemens Ag Trennschalter
FR2296252A1 (fr) * 1974-12-23 1976-07-23 Acec Ensemble de contact fixe et de contact mobile pour changeur de prise en charge de transformateur electrique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485306A1 (fr) * 1990-11-06 1992-05-13 Schneider Electric Sa Interrupteur rotatif multipolaire
WO2002080206A3 (fr) * 2001-03-30 2002-12-05 Grupo Ormazabal Sa Bloc de lames de contact pour interrupteurs de court-cirtuit de moyenne tension
EP1688979A3 (fr) * 2005-02-08 2007-08-22 General Electric Canada Sectionneur
WO2010106126A1 (fr) 2009-03-20 2010-09-23 Areva T&D Canada Inc. Conducteur simplifié pour appareillage electrique et appareillage electrique comportant au moins un tel conducteur
WO2011018810A1 (fr) * 2009-08-13 2011-02-17 Areva T&D Italy S.P.A. Sectionneur électrique à deux colonnes
CN102089844B (zh) * 2009-08-13 2014-12-17 阿海珐输配电意大利股份公司 双柱电气断路器
US9396895B2 (en) 2011-10-18 2016-07-19 Alstom Technology Ltd. Lightweight conductor for electrical equipment and electrical equipment including at least one such conductor
CN110853968A (zh) * 2018-08-21 2020-02-28 西安西电高压开关有限责任公司 一种隔离开关及其静触头的密封复位装置
CN110853968B (zh) * 2018-08-21 2021-11-19 西安西电高压开关有限责任公司 一种隔离开关及其静触头的密封复位装置

Also Published As

Publication number Publication date
ES296972Y (es) 1988-11-16
ES296972U (es) 1988-03-01
JPS61267209A (ja) 1986-11-26

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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

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19870513

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BBC BROWN BOVERI AG

17Q First examination report despatched

Effective date: 19880825

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19881103

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PETER, JOERG

Inventor name: RUFFIEUX, STANISLAUS

Inventor name: ISCHI, JUERG