WO1997033291A1 - Dispositif de verrouillage pour systeme de commutation isole au gaz avec double barre omnibus - Google Patents

Dispositif de verrouillage pour systeme de commutation isole au gaz avec double barre omnibus Download PDF

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Publication number
WO1997033291A1
WO1997033291A1 PCT/DE1997/000439 DE9700439W WO9733291A1 WO 1997033291 A1 WO1997033291 A1 WO 1997033291A1 DE 9700439 W DE9700439 W DE 9700439W WO 9733291 A1 WO9733291 A1 WO 9733291A1
Authority
WO
WIPO (PCT)
Prior art keywords
slide
locking
preselection
circuit breaker
switch
Prior art date
Application number
PCT/DE1997/000439
Other languages
German (de)
English (en)
Inventor
Thilo Affolder
Claus Kress
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to IL12607997A priority Critical patent/IL126079A0/xx
Publication of WO1997033291A1 publication Critical patent/WO1997033291A1/fr

Links

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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches

Definitions

  • the invention relates to a locking device for a gas-insulated switchgear assembly with double busbars, this switchgear assembly having a circuit breaker and two disconnector and earthing switches assigned to this circuit breaker and the circuit breaker being manually controllable by a circuit breaker drive and the disconnector and earthing switch each being manually controllable by a three position switch drive .
  • a locking device against simultaneous switching on of two mechanically actuated switching elements is known, which are arranged side by side.
  • the switching elements are two contactors, each contactor being coupled to a slide and each slide acting on a locking element which is movably arranged between the two slides.
  • the known locking member is designed as an angle lever and rotatable about a stationary axis of rotation. One end of the angle lever is connected in an articulated manner to one of the two slides via a positionally variable axis parallel to the fixed axis of rotation, while the other end of the angle lever can be moved into a position locking the second slide.
  • a locking device which interlocks three circuit breakers of an electrical system with two current sources and two consumers so that a parallel connection of the two current sources is ruled out by locking the third automaton in the open position when the other two are in the closed position.
  • the interlocks are effected by pivoting lever movements of a first lever, the movement of which is transmitted to the second and third levers of the other machines.
  • the interlocks are thus controlled by mutual interference of the automatic circuit breakers in a function-dependent manner by a complex locking linkage which extends constructively over the entire outer contour of the electrical system.
  • DE 44 09 172 AI discloses a safety device for the mutual mechanical interlocking of disconnectors, which can assume an on and an off state.
  • Each isolating switch has its own so-called adapter block with a first and a second rotatable coupling means, each of which is connected to the corresponding coupling means on the opposite side via a linkage.
  • the coupling means of both adapter blocks are functionally linked to one another in such a way that the first mechanical coupling means the second mechanical
  • Coupling means controls mechanically and vice versa.
  • the rods can also be used in connection with the coupling means by means of cable pulls.
  • This locking mechanism also represents a very complex control structure, which can only be implemented with very great effort with the structural conditions of larger switchgear systems.
  • the object underlying the invention is to define a structurally simple locking device for gas-insulated switchgear for supplying and distributing electrical energy, the switching elements of which are implemented by circuit breakers and disconnectors and earthing switches, both the circuit breaker and the disconnectors and earthing switches assigned to them can be controlled manually by their own mechanical drives. It is particularly important to take into account that the isolating and earthing switches are known to have three switch positions, namely switch contact closed, switch contact open and switch contact grounded. According to the invention, the object is achieved by the features
  • the locking device is implemented by a locking module which is arranged within the switch system between the two three-position switch drives and the circuit breaker drive,
  • the locking module has a linearly deflectable selector slide with three defined positions, a middle position for preselecting the circuit breaker drive, a left end position for preselecting a first three position switch drive and a right end position to preselect a second three-position switch actuator, on,
  • the preselector is equipped with a control contour such that when the preselector is deflected from the central position into the respective left and right end position, a locking slide can be moved against the force of a tension spring, with which at least one locking switch can be actuated ,
  • the preselection slide is connected to a preselection slide torsion spring in such a way that the preselection slider is latched in the left and right end position and can be automatically transferred to the central position when manually deflected from the left or right end position
  • 1.5 the preselection slide is radial , provided approximately against the deflection direction, in which, in the state of the circuit breaker switched on, an articulated lever controlled by the circuit breaker drive via a drive shaft engages with its articulated lever bolt to lock the preselection slide,
  • the articulated lever is provided with an articulated lever bolt for controlling a switch position indicator of the circuit breaker
  • the preselector is provided with a guide groove such that a during the linear deflection of the
  • the preselection slide is provided with a locking window into which a locking bolt engages when one of the two three-position switches is switched on and which can be moved against a force of a locking bolt torsion spring by means of a rocker which can be deflected during the switching-on process,
  • the locking window is designed so that the preselector slide manually from this position only in the
  • the middle position can be transferred.
  • the locking device is thus implemented by a locking module which, arranged between the two three-position switch drives and the circuit breaker drive of the switchgear, completely prevents inadmissible visual actions on the switch drives, which can be controlled independently, with its preselector slide.
  • the pre-selector slide assumes three preferred end positions, the preselection for actuating the circuit breaker drive being adjustable with the middle position of the preselect slider and the preselection for actuating the left or right three-position switch drive being adjustable with the left or right end position of the preselection slide.
  • the preselection slide With its deflection from the middle position into the respective left or right end position, the preselection slide is locked there against the force of the preselection slide torsion spring and is automatically returned to the middle position from this position only by targeted manual handling. In this middle position, as already stated, the preselection for actuating the circuit breaker drive is made. As a result, other switching operations of the two three-position switch drives blocked. This locking is ensured by the articulated lever which, in the middle position of the pre-selection slide, engages with its articulated lever bolt in the locking groove of the pre-selection slide provided for this purpose.
  • the circuit breaker drive itself then returns or releases the blocking via the correspondingly actuated drive shaft which, when the circuit breaker is switched off, returns the articulated lever to the starting position against the force of the articulated lever torsion spring against the force of the articulated lever torsion spring and when the Articulated lever pin releases from the locking groove of the preselection slide.
  • the position indicator which visually indicates the respective switching state, is actuated with the switch indicator bolt, which is also provided on the articulated lever.
  • the preselection slide is moved manually into the left or right end position, the circuit breaker drive is also blocked for operational reasons.
  • This state is brought about by the locking shaft, which drives the locking shaft radially with its rotary lever bolt with the linear displacement of the preselection slide.
  • the locking lever which is also connected to the locking shaft, thereby presses on the locking linkage of the circuit breaker drive and thus prevents the circuit breaker from being closed.
  • the features are 2.1 the preselection slide is with a manually operated
  • the preselector slide is guided by guide bolts in an elongated hole in a frame part of the locking module
  • the preselection slide is arranged on the front of the locking module.
  • the preselection slide which is guided by guide bolts in the elongated hole of the frame part, is in a very simple manner in the corresponding positions, the middle position for actuating the circuit breaker drive and the optional one left or right end position to operate the left or right three-position switch.
  • the essential locking states specified by the operating conditions must also be distinguished visually and practically unmistakably from one another.
  • the preselection slide acts with the guide bolts on a first panel and on a second panel in such a way that only access to the first three-position switch drive is enabled in the left end position and only access to the second three-position switch drive is enabled in the right end position,
  • the selector slide acts with the guide bolts on a first panel and on a second panel in such a way that in the middle position the access to the first three Position switch actuator and access to the second
  • Three-position switch actuator is locked, before.
  • the rocker is fixed in position by the locking pin torsion spring and a three-position slide pin of the three-position slide.
  • interlocks can be controlled in a targeted manner with the three-position slide, which is under the control influence, for example, of a cam disk which can be actuated when the three-position switch is switched on. which allow the operation of only a single three-position switch actuator.
  • FIG. 1 An exemplary embodiment shown in FIG. 1, FIGS. 1 and 2 showing the locking module in two of three different switching states in the front view, FIGS. 3 and 4 the locking module with the same two switching states in the bottom view
  • FIGS. 5 to 7 show details of the locking of the three-position switch drives among one another
  • FIGS. 8 and 9 show the control of the shutters of the locking module in detail
  • FIGS. 10 and 11 show the locking of the circuit breaker drive in the end position of the respective one Show the preselection slide in the pull-out when optionally operating one of the two three-position switch drives.
  • the locking device according to the invention is represented by the locking module VM, the see between a circuit breaker (not shown here) and two three-position switches arranged side by side above the circuit breaker, of which only the three-position switch drives DA1 DA2 necessary for understanding the invention are excerpted are shown, is arranged.
  • the locking module VM has, among other things, the preselection slide VS, which can be moved linearly with the handle part GT.
  • the preselector slide VS is guided by guide bolts FB in the elongated hole LL of the frame part RT of the locking module VM.
  • the guide pins FB of the preselection slide VS are connected with the orifice BL1 for the three-position switch drive DA1 arranged on the left and with the orifice BL2 for the right-hand three-position switch drive DA2 in such a way that the linear displacement of the preselection slide VS from the central position ⁇ lung (Fig.l), in which both three-position switch drives DA1, DA2 are blocked, in the direction of the left three-position switch drive DA1 (Fig.2) the three-position switch drive DA1 arranged on the left is released.
  • both covers BL1 and BL2 are pivoted, but only the left three-position switch drive DA1 is released, while the right three-position switch drive DA2 also remains closed by the pivoted cover BL2.
  • the switch position indicator SZ for the circuit breaker remains unchanged in both switch positions, middle position of the preselection slide VS (FIG. 1) and left end position of the preselection slide VS (FIG. 2), ie the circuit breaker drive is not actuated in both switch positions.
  • Figures 3 and 4 show the locking module VM for these two switch positions in the bottom view. From the middle position of the preselection slide VS in FIG. 3, part of the control contour SK of the same is visible, with which the linear slide RS counteracts the linear displacement of the preselection slide VS. against the force of the tension spring ZF is moved vertically so that the locking switches VR are actuated.
  • These locking switches VR contain individual switch contacts with which electrical circuits, not shown, can be controlled, for example for optical and / or acoustic signaling of the different operating states.
  • circuit breaker drive LA which controls the drive shaft AW directly, is indicated in FIG.
  • the articulated lever GH is transferred to the locked position via the force of the articulated lever torsion spring GF and held there.
  • the articulated lever bolt GB attached to the articulated lever GH engages in a locking groove SP (FIG. 9) of the preselection slide VS and thus prevents the same from moving in this switching state.
  • the preselector slide VS is transferred to the right end position and is locked in position there by the locking slide RS.
  • the right three-position switch drive DA2 (FIG. 1) is selected here, in which the actuation of the circuit breaker drive LA (FIG. 1) is likewise prevented. It can also be seen from FIG. 4 that the preselection slide VS is guided through the two guide bolts FB in the frame part RT (FIG. 2).
  • FIGS. 5, 6 and 7 show details of the interlocking of the two three-position switch drives with one another.
  • the three-position slide DS is moved up or down in the direction of the arrow by means of a cam, not shown. If the three-position slide DS is moved upward (FIG. 6), the three-position slide bolt DZ, for example welded to the three-position slide DS, rotates the rocker arm WP. If, on the other hand, the three-position slide DS is moved downwards (Fig. 7), the short leg of the three-position slide DS moves the rocker arm WP in the same direction.
  • the rotation of the rocker arm WP causes the locking pin SB to be immersed in the locking window VF of the preselection slide VS.
  • the preselection slide VS can only be brought into the middle position from this position.
  • only the one whose disconnector or earthing switch is in the ON position can be selected.
  • the locking is switched back automatically during the switch-off process.
  • the cam disk (not shown) releases the three-position slide DS again and the locking pin torsion spring SF conveys the locking pin SB, the rocker arm WP and the three-position slide DS back to their starting position.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Slide Switches (AREA)

Abstract

L'invention concerne un dispositif de verrouillage pour un système de commutation isolé au gaz avec double barre omnibus. Ce système de commutation présente un interrupteur de puissance ainsi qu'un sectionneur et un sectionneur de terre, tous les deux associés à cet interrupteur de puissance. Ce dernier peut être commandé manuellement par un organe de commande d'interrupteur de puissance tandis que le sectionneur et le sectionneur de terre peuvent être commandés chacun manuellement par un organe de commande d'interrupteur à trois positions. Le dispositif de verrouillage selon l'invention est formé par un module de verrouillage (VM) monté entre les organes de commande d'interrupteur à trois positions (DA1, DA2) et l'organe de commande d'interrupteur de puissance. Une présélection pour l'exécution de commutations manuelles sur les organes de commande peut être effectuée par une glissière de présélection (VS) à déplacement linéaire entre l'un des deux organes de commande d'interrupteur à trois positions (DA1, DA2) dans sa position finale et l'organe de commande d'interrupteur de puissance (LA) dans sa position médiane.
PCT/DE1997/000439 1996-03-08 1997-02-26 Dispositif de verrouillage pour systeme de commutation isole au gaz avec double barre omnibus WO1997033291A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IL12607997A IL126079A0 (en) 1996-03-08 1997-02-26 Locking device for a gas-insulated switching system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610657A DE19610657A1 (de) 1996-03-08 1996-03-08 Verriegelungsvorrichtung für eine gasisolierte Schaltanlage mit Doppelsammelschienen
DE19610657.5 1996-03-08

Publications (1)

Publication Number Publication Date
WO1997033291A1 true WO1997033291A1 (fr) 1997-09-12

Family

ID=7788669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/000439 WO1997033291A1 (fr) 1996-03-08 1997-02-26 Dispositif de verrouillage pour systeme de commutation isole au gaz avec double barre omnibus

Country Status (4)

Country Link
KR (1) KR19990087611A (fr)
DE (1) DE19610657A1 (fr)
IL (1) IL126079A0 (fr)
WO (1) WO1997033291A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063131A1 (de) * 2010-12-15 2012-06-21 Abb Technology Ag Antriebseinheit zum Betreiben eines Schalters einer Mittel- oder Hochspannungsschaltanlage
DE102013205354B3 (de) * 2013-03-26 2014-07-10 Alstom Technology Ltd. Elektrische Schaltanlage
KR20210077150A (ko) * 2019-12-17 2021-06-25 엘에스일렉트릭(주) 진공 차단기용 인입출 방지 기구와 이를 포함하는 진공 차단기

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499344A (en) * 1983-04-11 1985-02-12 General Electric Company Interlock arrangement for circuit breaker compartments
EP0388823A2 (fr) * 1989-03-18 1990-09-26 Moeller GmbH Dispositif de verrouillage contre la mise en circuit simultanée de deux contacteurs commandés mécaniquement ou électromécaniquement
DE4409172A1 (de) * 1993-03-25 1994-09-29 Gec Alsthom Equip Basse Tens Sicherheitsvorrichtung zur gegenseitigen mechanischen Verriegelung von Trennschaltern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499344A (en) * 1983-04-11 1985-02-12 General Electric Company Interlock arrangement for circuit breaker compartments
EP0388823A2 (fr) * 1989-03-18 1990-09-26 Moeller GmbH Dispositif de verrouillage contre la mise en circuit simultanée de deux contacteurs commandés mécaniquement ou électromécaniquement
DE4409172A1 (de) * 1993-03-25 1994-09-29 Gec Alsthom Equip Basse Tens Sicherheitsvorrichtung zur gegenseitigen mechanischen Verriegelung von Trennschaltern

Also Published As

Publication number Publication date
IL126079A0 (en) 1999-05-09
DE19610657A1 (de) 1997-09-11
KR19990087611A (ko) 1999-12-27

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