EP0070248A2 - Sectionneur - Google Patents

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Publication number
EP0070248A2
EP0070248A2 EP82730078A EP82730078A EP0070248A2 EP 0070248 A2 EP0070248 A2 EP 0070248A2 EP 82730078 A EP82730078 A EP 82730078A EP 82730078 A EP82730078 A EP 82730078A EP 0070248 A2 EP0070248 A2 EP 0070248A2
Authority
EP
European Patent Office
Prior art keywords
switching pin
auxiliary
contact piece
control element
auxiliary switching
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
EP82730078A
Other languages
German (de)
English (en)
Other versions
EP0070248B1 (fr
EP0070248A3 (en
Inventor
Dieter Dipl.-Ing. Lorenz
Benno Ing. Grad. Rehaag
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
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 filed Critical Siemens AG
Publication of EP0070248A2 publication Critical patent/EP0070248A2/fr
Publication of EP0070248A3 publication Critical patent/EP0070248A3/de
Application granted granted Critical
Publication of EP0070248B1 publication Critical patent/EP0070248B1/fr
Expired legal-status Critical Current

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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
    • H01H31/26—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
    • H01H31/32—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 rectilinearly-movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches

Definitions

  • the invention relates to an isolating switch with a fixed, tubular contact piece and a movable, tubular switching pin, which is guided in a fixed outer part and contains in its interior a spring contactable, relative to the switching pin movable auxiliary switching pin, which with an auxiliary contact piece of the fixed contact piece is connectable.
  • a known disconnector of this type (Siemens operating instructions SW 8378 - 220 "3CB switch disconnector, 10 kV", pages 102/1 to 102/3) is designed as a switch disconnector and has an auxiliary switching pin, so that when switching off, an arc only between a so-called Sliding contact and a burning ring of the switching pin is formed because gas is split off from the insulating material of the stationary outer part by this arc, which escapes from the quenching pot with strong flow while deionizing the switching path.
  • the object of the invention is to propose a circuit breaker which, even in the case of a version for higher voltages and the large separation distances required, has short flashover times without requiring a particularly fast-operating drive.
  • flashover is understood to mean the time during which an arc occurs between the fixed contact piece and the movable switching pin during the switching process.
  • the switching pin at its front end facing the contact piece has a pawl which interacts with a shoulder at the front end of the auxiliary switching pin; on the outer part a further pawl is held, which cooperates with an extension at the rear end of the auxiliary switching pin, and in the switching pin a control element is arranged to be longitudinally movable, between which and the approaches of the auxiliary switching pin there is a spring; the control element is connected to the switching pin via a translating drive and the pawls are actuated.
  • a major advantage of the isolating switch according to the invention is that when the switch-on movement occurs, the auxiliary switching pin comes into connection with the auxiliary contact piece much faster than the switching pin with the fixed contact piece, as a result of which the flashover time during the switching-on process is considerably shortened.
  • a Another advantage is seen in the fact that the shortening of the rollover times can be achieved with a hitherto usual, relatively slow-working drive, so that it can remain with the use of an inexpensive, slow-working drive.
  • the translating drive can be designed in different ways, for example consist of a toothed drive.
  • the translating drive is a cable drive and contains two deflection rollers which are mounted on the switching pin at a predetermined axial distance from one another; a rope is attached at one end to a point in the region of the rear end of the auxiliary switching pin of the outer part, around the one point further away from a guide roller and then around the other guide roller closer and finally with its other end at one in the open state the isolating switch of a point of the outer part which is adjacent to a deflecting roller and is located between the deflecting rollers; the control element is connected to the section of the cable that lies between the deflection rollers when the disconnector is open.
  • control element of the disconnector according to the invention can also be designed differently; as special It is considered advantageous if the control element consists of a disk-shaped part sliding on the auxiliary switching pin and an actuating part for the pawls attached at right angles thereto.
  • the illustrated embodiment has a switching pin 1, which is held in a stationary outer part 2 and can be moved longitudinally.
  • a fixed contact piece 3 is arranged opposite the switching pin 1.
  • the distance between the fixed outer part 2 and the fixed contact piece 3 is referred to as the separation distance T.
  • An auxiliary switching pin 4 is arranged to be longitudinally movable within the switching pin 1.
  • the auxiliary switching pin 4 is provided at its front end 5 facing the fixed contact piece 3 with a shoulder 6; the auxiliary switching pin 4 has a similar approach 7 at its rear end 8.
  • a control element 9 is also slidably arranged on the auxiliary switching pin 4. This control element 9 is provided with a disk-shaped part 10 on which an actuating part 11 extending at right angles thereto is attached.
  • the control element 9 is fastened with its upper end in the illustration 1 to a section 12 of a rope 13.
  • This rope 13 is attached with its one end 14 to an attachment point 15 which lies on the fixed outer part 2.
  • the rope is guided around a deflection roller 16 which is attached to the switching pin 1 in the vicinity of the front end thereof.
  • Rope 13 is guided around a further deflection roller 17 which is mounted on the switching pin 1 at a predetermined axial distance from the one deflection roller 16.
  • the rope runs from the further deflection roller 17 to a fastening point 18 which, like the fastening point 15, lies on the outer part 2.
  • the fastening point 18 is in the switched-off state of the disconnector near one deflection roller 16, but in the area between the two deflection rollers 16 and 17.
  • auxiliary switching pin 4 On the auxiliary switching pin 4 there are two springs 19 and 20, each lying between the disk-shaped part 10 of the control element 9 and the lugs 6 and 7 of the auxiliary switching pin 4.
  • a pawl 21 is articulated on the switching pin 1 and is pressed in the direction of the auxiliary switching pin 4 by means of a compression spring 22.
  • Another pawl 23 is articulated on the outer part 2 and also pressed in the direction of the auxiliary switching pin 4 by a further compression spring 24. Both pawls 21 and 23 are arranged so that they are in the working area of the actuating part 11 of the control element 9.
  • the illustration 2 shows that due to an external actuation of the switching pin 1, not shown, it has been moved a little to the right in the direction of the fixed contact piece 3, the control element 9 being moved to the right by the cable 13 so that due to the tension caused by this
  • the switching pin 1 is moved even further in the direction of the fixed contact piece 3, then the attachment point of the disk-shaped part 10 of the control element 9 is guided around the one deflection roller 16 and finally assumes a position as shown in FIG. 5. As a result, the auxiliary switching pin is pushed even further into the auxiliary contact piece. If the switching pin 1 is pushed even further forward, the control element no longer moves forward, but remains in the position shown in FIG. 5; the switching pin 1, however, comes into engagement with the fixed contact piece 3, and the switch-on movement is ended; the disconnector is closed. This is shown in illustration 6 of the figure.
  • the switching pin 1 When the disconnector is switched off, the switching pin 1 is moved in the direction of the arrow 27 (see illustration 7), wherein the control element 9 finally comes back into a position due to the cable drive, as shown in the illustration 7.
  • the shoulder 7 is guided at the rear end 8 of the auxiliary switching pin 4 against a stop 28 of the further pawl 23, and it now begins with the further backward movement of the switching pin 1 and the associated movement of the control element 9, a pretensioning of the spring 20.
  • the further pawl 23 is pivoted downwards by a hook 29 of the actuating part 11 and thus the extension 7 of the auxiliary switching pin 4 is released.
  • the auxiliary switching pin 4 therefore snaps back in the direction of arrow 30, as a result of which the galvanic connection between its front end and the auxiliary contact piece (not shown) is broken. This is shown in Figure 9. If - as shown in illustration 10 - the switching pin 1 is returned to its initial position, then the control element 9 also returns to its original position; the auxiliary switching pin 4 is also located with its front end inside the switching pin 1.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP82730078A 1981-07-10 1982-06-11 Sectionneur Expired EP0070248B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3127960 1981-07-10
DE19813127960 DE3127960A1 (de) 1981-07-10 1981-07-10 Trennschalter

Publications (3)

Publication Number Publication Date
EP0070248A2 true EP0070248A2 (fr) 1983-01-19
EP0070248A3 EP0070248A3 (en) 1984-04-25
EP0070248B1 EP0070248B1 (fr) 1986-04-16

Family

ID=6136979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82730078A Expired EP0070248B1 (fr) 1981-07-10 1982-06-11 Sectionneur

Country Status (4)

Country Link
US (1) US4539450A (fr)
EP (1) EP0070248B1 (fr)
CA (1) CA1227517A (fr)
DE (2) DE3127960A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004424A1 (fr) * 1983-04-29 1984-11-08 Alsthom Atlantique Sectionneur telescopique
FR2547107A1 (fr) * 1983-06-06 1984-12-07 Merlin Gerin Sectionneur d'isolement blinde
EP0348645A2 (fr) * 1988-07-01 1990-01-03 Licentia Patent-Verwaltungs-GmbH Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé
EP0467797A1 (fr) * 1990-07-19 1992-01-22 Merlin Gerin Sectionneur à haute tension
FR2737601A1 (fr) * 1995-08-01 1997-02-07 Berdanos Guy Sectionneur a isolement haute tension et a fort pouvoir de coupure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6251952B1 (en) 1991-01-24 2001-06-26 Belmar Corporation Method of using lachrymatory agents for moisturizing the eyes
WO2006053559A2 (fr) * 2004-11-17 2006-05-26 Linak A/S Actionneur lineaire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348001A (en) * 1965-07-26 1967-10-17 Westinghouse Electric Corp Electric distribution system
FR1505035A (fr) * 1965-12-15 1967-12-08 Siemens Ag Commutateur électrique ayant un rapport élevé de transmission entre son élément mobile de contact et sa manivelle
CH555589A (de) * 1973-07-12 1974-10-31 Sprecher & Schuh Ag Hochspannungsschalter, insbesondere druckgasschalter.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706746A (en) * 1924-03-17 1929-03-26 Gen Electric Electric switch
US3943314A (en) * 1974-05-14 1976-03-09 Westinghouse Electric Corporation Motion-multiplying linkage-mechanism for sealed-casing structures

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348001A (en) * 1965-07-26 1967-10-17 Westinghouse Electric Corp Electric distribution system
FR1505035A (fr) * 1965-12-15 1967-12-08 Siemens Ag Commutateur électrique ayant un rapport élevé de transmission entre son élément mobile de contact et sa manivelle
CH555589A (de) * 1973-07-12 1974-10-31 Sprecher & Schuh Ag Hochspannungsschalter, insbesondere druckgasschalter.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004424A1 (fr) * 1983-04-29 1984-11-08 Alsthom Atlantique Sectionneur telescopique
US4568808A (en) * 1983-04-29 1986-02-04 Alsthom-Atlantique Telescopic isolating switch
FR2547107A1 (fr) * 1983-06-06 1984-12-07 Merlin Gerin Sectionneur d'isolement blinde
EP0348645A2 (fr) * 1988-07-01 1990-01-03 Licentia Patent-Verwaltungs-GmbH Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé
EP0348645A3 (fr) * 1988-07-01 1991-02-27 Licentia Patent-Verwaltungs-GmbH Dispositif pour la coupure et le branchement rapide de petits courants pour sectionneurs d'appareillage de commutation entièrement isolé
EP0467797A1 (fr) * 1990-07-19 1992-01-22 Merlin Gerin Sectionneur à haute tension
FR2665019A1 (fr) * 1990-07-19 1992-01-24 Merlin Gerin Sectionneur a haute tension.
US5186315A (en) * 1990-07-19 1993-02-16 Merlin Gerin High voltage disconnecting switch
FR2737601A1 (fr) * 1995-08-01 1997-02-07 Berdanos Guy Sectionneur a isolement haute tension et a fort pouvoir de coupure

Also Published As

Publication number Publication date
CA1227517A (fr) 1987-09-29
DE3270584D1 (en) 1986-05-22
DE3127960A1 (de) 1983-01-27
US4539450A (en) 1985-09-03
EP0070248B1 (fr) 1986-04-16
EP0070248A3 (en) 1984-04-25

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