EP0085205B1 - Disjoncteur haute tension et son utilisation - Google Patents

Disjoncteur haute tension et son utilisation Download PDF

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Publication number
EP0085205B1
EP0085205B1 EP82201664A EP82201664A EP0085205B1 EP 0085205 B1 EP0085205 B1 EP 0085205B1 EP 82201664 A EP82201664 A EP 82201664A EP 82201664 A EP82201664 A EP 82201664A EP 0085205 B1 EP0085205 B1 EP 0085205B1
Authority
EP
European Patent Office
Prior art keywords
voltage switch
switch
separating
switched
latching
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
EP82201664A
Other languages
German (de)
English (en)
Other versions
EP0085205A1 (fr
Inventor
Georg Köppl
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
Priority to AT82201664T priority Critical patent/ATE18318T1/de
Publication of EP0085205A1 publication Critical patent/EP0085205A1/fr
Application granted granted Critical
Publication of EP0085205B1 publication Critical patent/EP0085205B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current

Definitions

  • the invention relates to a high-voltage switch with at least one movable contact, on which a bias acts in the switch-off direction in the switch-on position, and to a device for locking the movable contact in the switch-on position, the lock being detachable by detonating an explosive charge, and using the same .
  • a high-voltage switch of the type mentioned at the outset is known from FIG. 6 of CH-A-321 671.
  • a movable contact is biased by a spring in the opening direction.
  • Detonation of an explosive device releases a lock that holds the switch in the switched-on position, and the movable contact is moved in the switch-off direction by the action of the relaxing spring.
  • the pressure occurring during the detonation also causes the switching section to be blown via a piston-cylinder arrangement.
  • the switch is switched off, it must be de-energized, then manually switched to the on position and provided with a new lock. Finally, a new blast trigger is installed and the mains voltage is then switched on again.
  • a high-voltage switch similar to the type mentioned at the outset is known from FIG. 3 of FR-A-1 535 272.
  • the movable contacts are biased in the switch-on direction by pressurized gas piston-cylinder arrangements. Detonation of an explosive trigger releases a lock that holds the switch in the switched-off position, and the movable contacts are moved in the switch-on direction by the action of the compressed gas acting on the piston-cylinder arrangements.
  • This switch can be switched off after each switch-on. Then it is switched off, the compressed gas is removed from the entire switch and only then can a new interlock with an explosive device be installed. After refilling with compressed gas and switching on the mains voltage, the known switch is ready for operation again.
  • the invention seeks to remedy this.
  • the invention as characterized in claims 1, solves the problem of creating a high-voltage switch of the type mentioned, which can perform at least one further switch-off after a switch-off and the following switch-on without manual intervention on the switch being necessary in between, and to indicate the use of such a switch.
  • FIG. 1 shows the overall arrangement of the half-cycle high-voltage switch 1 according to the invention.
  • a partial section shows a fixed contact 2 and a movable contact 3, which are located in an arcing chamber 1 ', with a further section showing an insulation encapsulation 4 and a Insulating rod 5 are shown.
  • FIG. 1 shows further functional parts of the half-period high-voltage switch schematically.
  • a high-pressure container 6 is connected via a refill valve 7 to a device 8 with a switch-on piston.
  • a connecting part 9 leads to a rotating device 10, the continuation of which is a device 11 with an opening piston.
  • the fixed contact 2 is provided with a contact body 12.
  • the movable contact 3 has a contact body 13 on.
  • the fixed contact 2 contains a sliding contact 14, the movable contact 3 a sliding contact 15. Between the contact bodies 12 and 18, a seal 16 is attached.
  • the contact body 13 is provided with a shield 17.
  • the contact body 12 is pressed into its contact position with a cylindrical compression spring 19, with a further cylindrical compression spring 20 being associated with the contact body 18.
  • the fixed contact 2 is connected by a current guide 21 to a connection contact, not shown.
  • the sliding contact 15 has a current guide 22 in which an annular seal 24 is mounted.
  • the movable contact 3 also contains a connecting star 23 which is connected to the insulating rod 5.
  • the connection star 23 is held by means of two rings 25.
  • FIG. 3 the device 11 and partially the rotating device 10 of FIG. 1 is explained in more detail.
  • a cylinder housing 26 an opening piston 27 is slidably mounted.
  • This switch-off piston 27 is connected to a piston rod 28 and provided with a sealing ring 29 which is mounted in a groove 30.
  • the piston rod 28 is guided with a star-shaped holder 31.
  • An engagement disk 32 of the rotating device 10 is shown in the lower part of FIG. 3.
  • the engagement disc 32 is provided with a plunger 33 which contacts the shut-off piston 27.
  • the plunger 33 is guided in two guide rings 34.
  • the engagement disk 32 is provided with two bores 35.
  • FIG. 3 only a separating screw 36 is drawn for clarity.
  • the position of the other separating screws 36 can be seen from FIG. 4.
  • a plurality of tilting segments 37 are rotatably fastened in the engagement disk 32 by means of bearing bolts 39.
  • the separating screws 36 are provided with spacer sleeves 38.
  • a fender 40 is fastened under the separating screws 36 and has the task of preventing the lower parts of the separating screws 36 from falling out.
  • the reference number 41 denotes the nut of the separating screw 36, this nut 41 being supported with a plate spring 42.
  • the rotating device 10 is provided with a cylinder housing 43, both the cylinder housing 43 and the cylinder housing 26 being drawn in one piece with corresponding slide-shaped plates because of the simplicity. It goes without saying that they consist of several parts for assembly reasons.
  • the engagement disk 32 has hook-shaped parts 44, in which recesses 45 are formed for the support relative to the separating screws 36.
  • FIG. 5 shows in section an example of the configuration of the connecting part 9 from FIG. 1, the engagement disk 32 from FIGS. 3 and 4 also being shown in simplified form in this FIG. 5.
  • a bolt 48 is mounted in a sleeve 46 of the rotating device 10.
  • the sleeve 46 is held by two support arms 46 ', which are also clearly visible in the section VI-VI shown in FIG. 6.
  • the sleeve 46 is provided with a slot-like recess 47 which forms a loop.
  • a roller 49 which is rotatably mounted in the bolt 48, engages in this link-like recess 47.
  • the bolt 48 carries a plate 50 which is provided with two pins 51. These pins 51 serve to engage in the bores 35 of the engagement disk 32.
  • FIG. 5 shows in section an example of the configuration of the connecting part 9 from FIG. 1, the engagement disk 32 from FIGS. 3 and 4 also being shown in simplified form in this FIG. 5.
  • a bolt 48 is mounted in a sleeve 46 of the
  • a switch-on piston 52 is shown, which is connected to a switch-in plunger 53.
  • This switch-in plunger 53 has an annular groove 54, in which two fixing bolts 55, which are only symbolically drawn, engage, which are pressed into the bolt 48 and allow the rotary movement of the bolt 48 with respect to the switch-in plunger 53.
  • the device 8 with the switch-on piston 52 is provided with a cylinder housing 56 in which a bore 57 is made.
  • the switch-on piston 52 is supported with a compression spring 58 in relation to the cylinder housing 56.
  • FIG. 6 shows the section VI-VI from FIG. 5. In this FIG. One can see the position of the roller 49 in the slot-like recess 47 of the sleeve of the rotating device 10.
  • FIG. 7 and 8 show two examples of the use of the high-voltage switch 1 according to the invention.
  • the reference number 59 denotes line switches, with 60 transformers, with 61 busbars and with 62 lines.
  • a half-period high-voltage switch 1 is switched on in series with a supply switch 59, this series connection feeding the responsible busbar 61 via one transformer 60 each.
  • the example circuit according to FIG. 8 shows a variant in which the half-cycle high-voltage switch 1 according to the invention is connected in series with one circuit breaker 59 each directly into the lines 62 in the switchgear.
  • the most important component for the fast operation of the half-period high-voltage switch 1 according to the invention is determined by the separating screws 36 in this example in cooperation with the engagement disk 32.
  • the separating screws are known per se. They are screws that receive a triggering pulse via an ignition control (not shown), whereby they are blasted off in the target zone and riveted into the brackets.
  • the mode of operation is as follows: If a triggering system detects a fault current that will exceed a predetermined threshold value, there is a triggering pulse on the separating screw 36 holding the prestressed piston rod 28.
  • the ignition control transmits the trigger pulse on the separating screw or the tennis screws 36 which are currently in engagement with the engagement disk 32.
  • the separating screw 36 is blown off and releases the mechanical connection between the cylinder housing 43 of the rotating device 10 and the engagement disk 32.
  • gas mixture SFJ N 2 which has penetrated from the high-pressure container 6 into the quenching chamber 1' through the switch column is.
  • the switch-off valve 27 accelerates the movable contacts 3 under the effect of the constantly present gas mixture pressure.
  • the seal 16 in the arcing chamber 1 'opens and releases the pressure on the contacts 12, 13. After the contact has been separated, the arc is blown sharply and extinguished in the zero passage.
  • the circuit breaker 59 which opens in the following takes over the insulation.
  • the de-energized switching on of the half-period high-voltage switch 1 immediately follows the switching off.
  • the refill valve 7 of the high-pressure container 6 is opened and the SF B / N 2 mixture flowing into the switch column flows under the switch-on piston 52 and moves it in the switch-on direction.
  • the closing piston 52 takes the bolt 48 of the rotating device 10 with it.
  • the engagement disk 32 fixed with the pin 51 is also taken along and locked in an intact separating screw 36 at the end of the movement.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Circuit Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Discharge Heating (AREA)

Claims (7)

1. Disjoncteur à haute tension avec au moins un contact mobile (3), sur lequel, en position de fermeture, agit un tension préalable dans le sens de l'ouverture, ainsi qu'avec un dispositif de verrouillage du contact mobile (3) dans sa position de fermeture, le verrouillage pouvant être débloqué par la détonation d'une charge explosive, caractérisé en ce que le dispositif de verrouillage comprend au moins deux vis de séparation (36), dont une première vis de séparation (36) provoque le verrouillage du contact mobile (3) dans la position de fermeture et dont une deuxième vis de séparation (36) assure le verrouillage du contact mobile (3) après un nouvel enclenchement survenant après un déclenchement.
2. Disjoncteur à haute tension suivant la revendication 1, caractérisé en ce que le dispositif de verrouillage se trouve en liaison opérationnelle avec un dispositif rotatif (10), dans le corps cylindrique (43) duquel snt fixées les au moins deux vis de séparation (36) et où est également logé un disque d'attaque (32) rotatif qui est pourvu de creux (45) destinés à prendre appui sur les vis de séparation (36), et en ce que le disque d'attaque (32) est relié de façon amovible à un boulon (48) du dispositif rotatif, ce boulon (48) étant pourvu d'un guide rotatif (47, 49) à coulisse et étant attaché à un piston d'enclenchement (52).
3. Disjoncteur à haute tension suivant la revendication 2, caractérisé en ce que les vis de séparation (36) sont fixées dans le corps cylindrique (43) du dispositif rotatif (10) à la même distance de l'axe de rotation. -
4. Disjoncteur à haute tension suivant une des revendications 2 ou 3, caractérisé en ce que la première vis de séparation (36) est fixée aussi bien dans le corps de cylindre (43) du dispositif rotatif (10) que dans le disque d'attaque (32).
5. Disjoncteur à haute tension suivant une des revendications 2 à 4, caractérisé en ce que les vis de séparation (36) et les creux (45) du disque d'attaque (32) sont réalisés en deux ou plusieurs étages dans la direction de l'axe de rotation.
6. Disjoncteur à haute tension suivant une des revendications 2 à 5, caractérisé en ce que le guide rotatif à coulisse (47, 49) est formé par un galet (49) rotatif monté dans le boulon (48), galet qui s'engage dans une cavité (47) à coulisse ménagée dans la paroi intérieure de la douille (46) du dispositif rotatif (10), la cavité (47) formant une boucle.
7. Utilisation du disjoncteur à haute tension suivant une des revendications 1 à 6 comme disjoncteur à haute tension à demi-période en série avec au moins un disjoncteur de puissance (59) dans une installation de commutation (Fig. 7 et 8).
EP82201664A 1982-01-28 1982-12-28 Disjoncteur haute tension et son utilisation Expired EP0085205B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82201664T ATE18318T1 (de) 1982-01-28 1982-12-28 Hochspannungsschalter und dessen verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH518/82 1982-01-28
CH51882 1982-01-28

Publications (2)

Publication Number Publication Date
EP0085205A1 EP0085205A1 (fr) 1983-08-10
EP0085205B1 true EP0085205B1 (fr) 1986-02-26

Family

ID=4188835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201664A Expired EP0085205B1 (fr) 1982-01-28 1982-12-28 Disjoncteur haute tension et son utilisation

Country Status (5)

Country Link
US (1) US4499351A (fr)
EP (1) EP0085205B1 (fr)
JP (1) JPS58129721A (fr)
AT (1) ATE18318T1 (fr)
DE (1) DE3269534D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663685A5 (de) * 1983-11-11 1987-12-31 Bbc Brown Boveri & Cie Trennschalter.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067505B (de) * 1954-02-06 1959-10-22 Emag Elek Zitaets Ges M B H Elektrischer Schalter
US3103569A (en) * 1960-05-05 1963-09-10 High speed circuit closing device
FR1535272A (fr) * 1966-08-29 1968-08-02 Asea Ab Commutateur à haute tension
DE1917724C3 (de) * 1969-04-05 1973-10-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Leistungsschalter für sehr kurze Ausschaltzeiten
FR2058869A5 (fr) * 1969-09-30 1971-05-28 Propulsion Par Reaction
US4354072A (en) * 1979-10-22 1982-10-12 General Electric Company Pyrolytic cartridge interruption assistance actuator for puffer breaker

Also Published As

Publication number Publication date
DE3269534D1 (en) 1986-04-03
ATE18318T1 (de) 1986-03-15
US4499351A (en) 1985-02-12
JPS58129721A (ja) 1983-08-02
EP0085205A1 (fr) 1983-08-10

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