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EP0772215B1 - Sectionneur, en particulier disjoncteur sectionneur pour moyenne tension - Google Patents

Sectionneur, en particulier disjoncteur sectionneur pour moyenne tension Download PDF

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Publication number
EP0772215B1
EP0772215B1 EP96116928A EP96116928A EP0772215B1 EP 0772215 B1 EP0772215 B1 EP 0772215B1 EP 96116928 A EP96116928 A EP 96116928A EP 96116928 A EP96116928 A EP 96116928A EP 0772215 B1 EP0772215 B1 EP 0772215B1
Authority
EP
European Patent Office
Prior art keywords
isolating
isolating switch
switch according
contact
arcing chamber
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 - Lifetime
Application number
EP96116928A
Other languages
German (de)
English (en)
Other versions
EP0772215A1 (fr
Inventor
Raimund Buhl
Helmut Hörchens
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.)
Fritz Driescher Kg Spezialfabrik fur Elektrizitatswerksbedarf & Co GmbH
Original Assignee
Fritz Driescher Kg Spezialfabrik fur Elektrizitatswerksbedarf & Co GmbH
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 Fritz Driescher Kg Spezialfabrik fur Elektrizitatswerksbedarf & Co GmbH filed Critical Fritz Driescher Kg Spezialfabrik fur Elektrizitatswerksbedarf & Co GmbH
Publication of EP0772215A1 publication Critical patent/EP0772215A1/fr
Application granted granted Critical
Publication of EP0772215B1 publication Critical patent/EP0772215B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/126—Load break switches comprising a separate circuit breaker being operated by the distal end of a sectionalising contact arm
    • 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
    • H01H33/125—Load break switches comprising a separate circuit breaker

Definitions

  • the invention relates to a circuit breaker, in particular a medium-voltage switch disconnector with post insulators, on which there is a break contact per pole, with a movable disconnect knife, and with a closed, equipped with a movable switching pin, provided with a lag contact and in particular with SF 6 gas filled extinguishing chamber.
  • German patent 1 154 170 is a Such switch disconnector in which the Extinguishing chamber is located in a bypass path that only shortly after opening the main contact Current over the still temporarily in the on position remaining lagging contact through the arcing chamber leads until the one separating from the counter contact movable switch pin of the extinguishing chamber of the circuit interrupted and the resulting arc in the Extinguishing chamber is deleted.
  • the invention is based on the problem at the outset specified switch while maintaining the basic advantages of arranging a quenching chamber the switch structure in the bypass simplify, in particular to reduce its space requirements and improve its switching performance.
  • this object is achieved by that the quenching chamber and the lag contact is integrated, the quenching chamber being more preferred Embodiment between each of the post insulators Pols located. While so far the relevant The fire chambers switch separate units formed, which are often difficult to assemble could and the switch dimensions by their protruding Construction also the dimensions of the switch cell, in which they are to be installed, follows by the invention an extremely compact and space-saving construction paired with a very high Switching reliability and switching speed.
  • a particularly favorable construction not only in the sense requires little space, but also with regard to a optimal guidance of the auxiliary current path then results, if the arcing chamber in that post insulator is integrated, which is the main contact with the Knife fulcrum carries. This can be done in the following the branch flow path to be explained in more detail a comparatively short cable connection between the Delay contact and the extinguishing chamber in particular can be easily realized.
  • the lagging contact ensures that short-term and temporary electricity on one Branch line flows as soon as the knife the main current path interrupts by opening the assigned isolating contact, until then the movable contact pin in the arcing chamber separates from the fixed contact and thus the switch-off process is completed.
  • a switching kinematics for the Extinguishing chamber is housed for a special ensures reliable and high switching speed.
  • This Switching kinematics are preferably with the switching pin the extinguishing chamber and the cutting knife in operative connection, i.e. depending on the position of the Switching knife ensures the switching kinematics right time at which contact in the Extinguishing chamber interrupted and the spark extinguished should.
  • a kinematics that a lever mechanism consists of an angle lever has proven that one end of the extinguishing chamber switch pin is articulated while its other end is mounted on a joint that is articulated Connection of the free end of one at a fixed point articulated lever with the free end of one of the Separating knife actuated trigger linkage forms.
  • a such, stored between the cutting knife halves Kinematics doesn't just take care of you individual movements exactly on each other coordinated separation process, but also ensures a compact, space-saving construction and leads because the low weight for fast switching operations.
  • the kinematics ensures that the movable switching pin of the extinguishing chamber itself firm mating contact exactly at the desired time triggers up to which via the kinematics the switching pin against the excess pressure in the quenching chamber of about 1/2 bar.
  • the secondary flow path which temporarily carries the current is realized in that the lag contact electrically with the fixed contact in the arcing chamber is connected, preferably via a Cable, while the moving chamber contact electrically via the kinematics with the cutting knife pivot connected is.
  • FIG. 2 shows an embodiment of a switch unit shown as a medium-voltage switch-disconnector 1, at which shows the three poles A, B and C of Switch unit on a common base frame 2 are attached.
  • Fig. 1 in which switched-off state of the switch 1 compared to the is shown in dash-dot lines clearly that each pole with two insulators 3 and 4 am Base frame 2 is attached, wherein in the shown
  • the upper support insulator 3 in each exemplary embodiment the isolating contact supporter is while the lower support insulator 4 around the fulcrum contact support acts. Accordingly, the upper post insulator 3 carries the Connection or disconnect contact 5, while that of the lower Post insulator 4 worn contact piece designated 6 and has the fulcrum contact 7.
  • each pole is A, B and C with an extinguishing chamber 10, which in the Pivotal contact isolator 4 is integrated, namely such that they are on the isolating contact insulator 3 facing side of the pivot contact insulator 4, which makes it particularly compact and space-saving Arrangement is achieved, as can also be seen from FIG. 2, because every extinguishing chamber lies within the area the essentially by the distance of the Post insulators defined base frame 2.
  • the movable switching pin 11 protrudes on the cutting knife 8 facing side from the arcing chamber 10 and acts with a fixed contact 11a in the arcing chamber 10 in in connection with the explanation of the auxiliary current path 12 still to be explained together.
  • the outside atmosphere is under an overpressure of im concrete example about 1/2 bar inside the Extinguishing chamber 10 only for reasons of clarity Sealed membrane 11b shown in Fig. 1, the Movements of the switching pin 11 as well as that with the Blowing the spark gap when separating the contacts 11, Piston plate 11c provided with holes follows.
  • each separating knife 8 or the two are each Knife halves belonging to a knife can be seen in FIG. 1 Drive with one for the three Poles A, B and C common drive shaft 14 connected.
  • the Actuator isolators in flight between the Cutting knife halves 8.
  • This kinematics 15 exists essentially from an angle lever 16 as Transmission lever, with one end 16a on Extinguishing chamber switching pin 11 is articulated. His other End is mounted on a hinge point 16b, the one articulated connection of the free end of one Cutting knife 8 actuated trigger linkage 17 with the free end of an articulated at a fixed point 18a Articulated lever 18 forms.
  • a on the trigger linkage 17 Sequence i.e. the different movements controlling freewheel provided, which in preferred Embodiment consists of an elongated hole 19 through which a stop pin 20 attached to the cutting knife 8 protrudes.
  • a compression spring 21 which is on the one hand on the angle lever and on the other hand is supported on the cutting knife 8.
  • Fig. 3a shows the kinematics 15 in the normal, switched on Status. If there is a switch-off process, then the cutting knife 8 by turning the left Drive shaft 14 via the actuation insulator 13 counterclockwise first in the in Fig. 3b Intermediate position shown pivoted in the how 3b, the trailing pin 9 as well the kinematics 15 in that shown in Fig. 3a Position remain. The main current path is now through pulling the knife 8 from the isolating contact 5 interrupted while the current is now over the Secondary flow path 12 flows, i.e.
  • the compression spring 21 has already somewhat relaxed, but still seems so strong the movable switching pin 11 that this is does not release from the fixed contact 11a in the arcing chamber 10.
  • the stop pin 20 is in the slot 19 to the left boundary edge of the slot reaches and acts in the sense of pivoting the kinematics 15 also counterclockwise on the Trigger linkage 17, the angle lever 16 also pivoted counterclockwise. Only with this one further movement of the cutting knife 8 and now also the kinematics 15 relaxes counterclockwise the compression spring 21 so far that it in the Extinguishing chamber 10 no longer prevail overpressure can withstand and therefore the mobile Switch pin 11 releases from the fixed counter contact 11a, and shortly before the trailing pin 9 from the isolating contact 5 is separated.
  • FIGS. 3a to c show a preferred variant for the training of the kinematics 15, which differs from that previously in connection with FIGS. 3a to c in their structure explained kinematics only with respect to the Counteracting the internal pressure of the extinguishing chamber 10 Execution differs. So it has Kinematics 15 a pawl 22, preferably in the knee of the angle lever 16 is pivotally mounted and of a leg spring 23, the one hand on Angle lever 16 and on the other hand on the pawl 22nd supports, is held in the locked position in which it with a hook-shaped end behind one Fixed point (pin) 24 engages and thereby indirectly, namely over the angle lever 16, the overpressure Extinguishing chamber compensated as a back pressure component.
  • the Cutting knife 8 carries one in the desired angular position of the cutting knife 8 on the free end of the Pawl 22 acting trigger stop 25.
  • the switch-on process in simply by pivoting the cutting knife 8 in Clockwise to its on position on Isolating contact 5 can take place. With this swivel movement causes the cutting knife 8 by the previously in detail also explained the mechanical connections Return of the remaining switch parts to the starting position (switched on state) according to FIGS. 1, 3a and 4a.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (17)

  1. Sectionneur, notamment sectionneur à coupure en charge pour moyenne tension, avec des isolateurs de soutien (4) sur lesquels se trouve, pour chaque pôle, un contact de coupure, avec un couteau de sectionnement (8) mobile, et avec une chambre de soufflage (10) fermée, équipée d'une broche de commutation (11) mobile, dotée d'un contact de retard (9) et notamment remplie de gaz SF6, caractérisé en ce que la chambre de soufflage (10) et le contact de retard (9) sont intégrés, pour chaque pôle, dans un des isolateurs de soutien (4).
  2. Sectionneur selon la revendication 1, caractérisé en ce que la chambre de soufflage (10) se trouve chaque fois entre les isolateurs de soutien (3, 4) d'un pôle.
  3. Sectionneur selon la revendication 1 ou 2, caractérisé en ce que la chambre de soufflage (10) est intégrée dans l'isolateur de soutien (4) sur lequel se trouve le pivot (7) du couteau de sectionnement.
  4. Sectionneur selon une des revendications 1 à 3, caractérisé par une broche de commutation de retard (9) portée par le couteau de sectionnement (8), isolée par rapport à ce dernier et mobile en pivotement.
  5. Sectionneur selon une des revendications 1 à 4, caractérisé par un couteau de sectionnement (8) divisé longitudinalement, et par un mécanisme articulé de commutation (15) pour la chambre de soufflage (10), qui est disposé entre les deux moitiés du couteau de sectionnement.
  6. Sectionneur selon une des revendications 1 à 5, caractérisé en ce que le mécanisme articulé de commutation (15) est fonctionnellement relié à la broche de commutation (11) de la chambre de soufflage (10) et au couteau de sectionnement (8).
  7. Sectionneur selon la revendication 6, caractérisé en ce que le mécanisme articulé de commutation (15) consiste en un mécanisme à leviers.
  8. Sectionneur selon la revendication 7, caractérisé par un levier coudé (16), qui est articulé par l'une (16a) de ses extrémités à la broche de commutation (11) de la chambre de soufflage, tandis que son autre extrémité est montée en un point d'articulation (16b) qui réalise une liaison articulée de l'extrémité libre d'un levier articulé (18) articulé en un point fixe (18a) avec l'extrémité libre d'une tringle de déclenchement (17) actionnée par le couteau de sectionnement (8).
  9. Sectionneur selon une des revendications 6 à 8, caractérisé par un dispositif à roue libre au point de liaison entre le mécanisme articulé (15) et le couteau de sectionnement (8).
  10. Sectionneur selon la revendication 9, caractérisé en ce que le dispositif à roue libre consiste en un trou oblong (19) à l'extrémité libre de la tringle de déclenchement (17), qui est traversé par un téton (20) fixé sur le couteau de sectionnement (8).
  11. Sectionneur selon une des revendications 1 à 10, caractérisé par une force d'asservissement s'opposant à la surpression de la chambre de soufflage.
  12. Sectionneur selon la revendication 11, caractérisé par un ressort (21 ; 23) agissant sur le levier coudé (16) relié à la broche de commutation (11) de la chambre de soufflage.
  13. Sectionneur selon la revendication 11 ou 12, caractérisé par un cliquet (22) monté sur le levier coudé (16) et coopérant avec un téton d'arrêt fixe (24), cliquet au centre de rotation duquel est monté un ressort à branches (23) exerçant des forces d'encliquetage sur le cliquet (22).
  14. Sectionneur selon la revendication 13, caractérisé par un téton de butée (25) prévu pour l'extrémité libre du cliquet sur le couteau de sectionnement (8).
  15. Sectionneur selon la revendication 11 ou 12, caractérisé par un ressort de pression (21) prévu sur le levier coudé (16) relié à la broche de commutation de la chambre de soufflage, ressort qui s'appuie contre le couteau de sectionnement (8).
  16. Sectionneur selon une des revendications 1 à 15, caractérisé en ce que le contact de retard (9) est relié électriquement au contact fixe (11a) dans la chambre de soufflage (10).
  17. Sectionneur selon une des revendications 1 à 16, caractérisé en ce que la broche de commutation (11) mobile de la chambre de soufflage est reliée électriquement au contact de pivot (7) du couteau de sectionnement par l'intermédiaire du mécanisme articulé (15).
EP96116928A 1995-10-31 1996-10-22 Sectionneur, en particulier disjoncteur sectionneur pour moyenne tension Expired - Lifetime EP0772215B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19540552 1995-10-31
DE19540552A DE19540552A1 (de) 1995-10-31 1995-10-31 Trennschalter, insbesondere Mittelspannungs-Lasttrennschalter

Publications (2)

Publication Number Publication Date
EP0772215A1 EP0772215A1 (fr) 1997-05-07
EP0772215B1 true EP0772215B1 (fr) 2000-07-19

Family

ID=7776268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116928A Expired - Lifetime EP0772215B1 (fr) 1995-10-31 1996-10-22 Sectionneur, en particulier disjoncteur sectionneur pour moyenne tension

Country Status (4)

Country Link
EP (1) EP0772215B1 (fr)
AT (1) ATE194879T1 (fr)
DE (2) DE19540552A1 (fr)
NO (1) NO964375L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102543555A (zh) * 2011-12-29 2012-07-04 仪征市电瓷电器有限责任公司 一种中压式气体绝缘隔离开关

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19817444C1 (de) * 1998-04-20 1999-09-16 Driescher Spezialfab Fritz Schalter
DE102004006476B4 (de) * 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
CN106611660A (zh) * 2015-10-26 2017-05-03 辽宁华隆电力科技股份有限公司 一种静触头压紧结构的户外交流高压隔离开关
CN106611676A (zh) * 2015-10-26 2017-05-03 辽宁华隆电力科技股份有限公司 一种面接触户外交流高压隔离开关
CN106611657A (zh) * 2015-10-26 2017-05-03 辽宁华隆电力科技股份有限公司 一种不等厚动触头面接触户外交流高压隔离开关
CN106611659A (zh) * 2015-10-26 2017-05-03 辽宁华隆电力科技股份有限公司 一种带自锁功能的面接触户外交流高压隔离开关
CN106611658A (zh) * 2015-10-26 2017-05-03 辽宁华隆电力科技股份有限公司 一种具有动静触头斜面的户外交流高压隔离开关
CN106611661A (zh) * 2015-10-26 2017-05-03 辽宁华隆电力科技股份有限公司 一种预制静触头宽度的户外交流高压隔离开关
CN108054049B (zh) * 2018-01-31 2023-08-01 大连北方真空开关有限公司 高压隔离开关防掉刀装置

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
FR871241A (fr) * 1941-04-01 1942-04-13 Merlin Gerin Perfectionnements aux interrupteurs à fluide gazeux comprimé
DE1154170B (de) 1960-09-28 1963-09-12 Siemens Ag Lasttrennschalter
US3136875A (en) * 1961-05-09 1964-06-09 Westinghouse Electric Corp Circuit interrupters
FR2281643A2 (fr) * 1974-08-08 1976-03-05 Alsthom Cgee Interrupteur autopneumatique
US4268811A (en) * 1976-02-24 1981-05-19 S&C Electric Company Circuit interrupting device
FR2529712A1 (fr) * 1982-07-05 1984-01-06 Simplex Appareils Interrupteur-sectionneur combine aerien haute tension
US4591678A (en) * 1984-10-26 1986-05-27 Square D Company High power switching apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102543555A (zh) * 2011-12-29 2012-07-04 仪征市电瓷电器有限责任公司 一种中压式气体绝缘隔离开关

Also Published As

Publication number Publication date
NO964375L (no) 1997-05-02
DE19540552A1 (de) 1997-05-07
EP0772215A1 (fr) 1997-05-07
NO964375D0 (no) 1996-10-15
ATE194879T1 (de) 2000-08-15
DE59605621D1 (de) 2000-08-24

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