EP2544203A1 - Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci - Google Patents

Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci Download PDF

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Publication number
EP2544203A1
EP2544203A1 EP12173338A EP12173338A EP2544203A1 EP 2544203 A1 EP2544203 A1 EP 2544203A1 EP 12173338 A EP12173338 A EP 12173338A EP 12173338 A EP12173338 A EP 12173338A EP 2544203 A1 EP2544203 A1 EP 2544203A1
Authority
EP
European Patent Office
Prior art keywords
contact element
contact
latching
opening direction
circuit breaker
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Withdrawn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
EP12173338A
Other languages
German (de)
English (en)
Inventor
Christoph Siegenthaler
Markus Keller
Michael Boesch
Urs Kruesi
Rene Kallweit
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.)
ABB Technology AG
Original Assignee
ABB Technology 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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP12173338A priority Critical patent/EP2544203A1/fr
Publication of EP2544203A1 publication Critical patent/EP2544203A1/fr
Withdrawn legal-status Critical Current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
    • H01H31/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3052—Linear spring motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
    • H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
    • 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
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Definitions

  • the invention is in the field of gas-insulated high-voltage switchgear (GIS) and in particular relates to a load disconnector, in English, on-load disconnector ', with a movable first contact element and a movable second contact element.
  • GIS gas-insulated high-voltage switchgear
  • High-voltage switchgears are understood to be switchgears which are configured for nominal voltages of 1 kV or higher, in particular of 75 kV or higher.
  • bus-charging disconnectors With load disconnectors, a distinction is made between two types, so-called bus-charging disconnectors and so-called bus-transfer disconnectors. While in the 'bus-charging' disconnector the interruption of capacitive currents is in the foreground, the 'bus-transfer'-disconnector is aimed at disconnection situations which occur during switching cases in which a change from a first busbar to a second busbar is carried out in rated operation shall be. Disconnectors, in particular load disconnectors, are used both in the case of "bus transfer" switching operations as well as “bus-charging” switching operations.
  • this induced voltage in rated operation can increase, for example, up to 300 V depending on the switchgear, for example in the case of gas-insulated switchgear panels combined with an outdoor system. Therefore, there is a need for a (load) circuit breaker that switches reliably and wear-free even under increased requirements.
  • T2 is a gas-insulated high voltage circuit breaker with fast moving contact known.
  • the circuit breaker has a fixed contact and a movable contact.
  • a piston which is actuated by an actuating rod.
  • two springs are arranged between respective ends of the movable contact and the piston.
  • two locking systems are provided to fix the movable contact in an axial direction with respect to the piston. Thereby, the movable contact can be moved independently of the actuating rod and the piston.
  • a high voltage electrical circuit breaker comprises a first contact element movable along a separation axis and having a first latching element attached thereto; a second contact element movable along the separation axis and having a second latching element attached thereto; a drive system for moving the first contact element in an opening direction along the separation axis to open the separator; and a return system for returning the second contact element against the opening direction.
  • the first and second latch elements are arranged to give the following configuration:
  • the first latching element and the second latching element are interlocked and form a latched connection.
  • the latched connection initially remains in a first position range of the first contact element relative to the separation axis, so that the second contact element is carried along by the first contact element in the opening direction.
  • an adhesive force of the engaged connection in a first Position range of the first contact element relative to the separation axis so large, that is maintainable so that the second contact element is entrained by the first contact element when moving the first contact element in the opening direction / is entrained.
  • the adhesive force can be applied in the operation of the separator, for example, magnetically or by a suitable geometry (geometric) or both with magnetic and geometric means in combination.
  • the latched connection detaches during a separation phase of the movement, so that the second contact element is retrieved by the return system against the opening direction, and the second contact element is separated from the first contact element in a second position range of the first contact element relative to the separation axis ,
  • the term 'locking in place' is not interpreted strictly in the following, in that the engagement requires a mechanical latching device with releasable latching elements which engage in one another and correspondingly form-fittingly.
  • the term 'locking' in the present invention should be understood to the effect that the movable first contact element occupies a predefined position relative to its mating contact element in the direction of the separation axis and overcoming a certain resistance value requires the movable first contact element again from the, latched State '- speak to take the assumed' rest position '.
  • a magnetic connection whose attractive forces also form a frictional locking connection in the sense of the present invention for generating said adhesion.
  • the adhesive force of the engaged connection in a subsequent to the first position range second position range of the first contact element relative to the separation axis releasably, ie reduced in terms of power, so that the second contact element is retrieved from the return system against the opening direction / is recoverable, and the second contact element is separated / separable from the first contact element.
  • the disconnector may in particular be a load disconnector.
  • the advantage of the disconnector according to the invention is that when the arcing contacts are disconnected, a high relative speed between the contact elements can be achieved rapidly. This promotes rapid quenching of the forming arc. As a result, with the disconnector according to the invention even larger loads in rated operation, for example, power of 480 kW, repeated quickly, reliably and wear arm switch.
  • the separator according to the invention differs fundamentally from that in DE 600 30 032 T2 described separator, since in the separator described therein only a locking system between parts of a movable contact is described, and the fixed contact has no locking system.
  • the latching elements of the On the other hand disconnector according to the invention allow a latched connection between contacts, which are on different sides of the separation line with disconnector open. In the opening operation of the disconnector, one of the contact pieces is taken away from the other initially due to the engaged connection, and then the contact pieces are separated and separated by releasing this connection. As a result, a particularly high relative acceleration and speed of the two contact pieces can be achieved.
  • the contact elements are radially offset from each other and contact each other in a substantially radial direction, ie, in a radial rather than an axial direction, with respect to an axis of the separator.
  • FIG. 1 shows a high-voltage circuit breaker 1, more particularly a high-voltage load breaker, according to an embodiment of the invention.
  • the separator 1 has a housing 2 which defines an internal volume 4. The housing may be gas-tight to hold an insulating gas or a vacuum or a low pressure.
  • the isolator 1 has a first fixed contact 10 (also referred to as the first stationary contact piece 10), a separator tube 20, hereinafter also referred to as a movable first contact element 20, a drive system or a drive mechanism 30 for the separator tube 20 for moving the separator tube 20 in an opening direction 7 along the separation axis relative to a second contact element 60 described in more detail below to open the separator, and a first latching element 40.
  • the isolator 1 comprises: a second fixed contact 50 (also referred to as a second fixed contact piece 50), the aforementioned movably executed second contact element 60, a latching element 70, and a return system 80. These elements form a second side of the isolator, which is separated from the first side of the separator by a separating line 9.
  • the separator has an axis 8 of the separator.
  • the first fixed contact 10 is arranged stationary relative to the disconnector housing.
  • the movable first contact element 20 is e.g. electrically connected to the first fixed contact 10 via a sliding contact. This connection is independent of the state of movement of the movable first contact element 20.
  • At a distal end (ie, in the axial direction to the separation distance or to the other, ie second contact element arranged end) of the movable first contact element 20 is the first latching element 40th attached.
  • the first contact element 20 and / or the first fixed contact 10 are arranged substantially rotationally symmetrical or rotationally symmetrical about the axis 8 of the separator.
  • the first contact element 20 and / or the first fixed contact 10 may in particular have a cylinder-like section.
  • the movable first contact element 20 is movable along a separation axis, which coincides with the axis 8 of the separator. To lead this movement is that movable second contact element 60 by a guide system, such as a along the separation axis extending rail or a guide pin stored.
  • the drive mechanism 30 has a spindle 31 which extends along the axis 8 of the separator and is rotatable about this.
  • a motor and / or a hand crank is provided (not shown).
  • a driver attached to the movable first contact element 20 cooperates with the spindle such that rotation of the spindle 31 about the axis 8 of the separator is converted into longitudinal movement of the movable first contact element 20 along the axis 8 of the separator.
  • the second fixed contact 50 is also arranged stationary relative to the disconnector housing.
  • the movable second contact element 60 is movable along a separation axis which coincides with the axis 8 of the separator.
  • the movable second contact element 60 is supported by a guide system, such as a rail running along the separation axis or a guide pin.
  • the return system 80 is formed by a return spring, which is connected at its one end to the housing 2 and at its other end to the movable second contact element 60. As a result, the return spring 80 is able to pull the movable second contact element 60 away from the first fixed contact 10.
  • the return spring 80 is, for example, a coiled about a rigidly connected to a housing of the separator shaft connected coil spring.
  • the return spring 80 may be the only spring acting within the housing 2 on a contact element.
  • a damping element (not shown) is further arranged to dampen the return movement to the return spring 80.
  • the damping element is arranged to dampen the return movement of the second contact element 60 against the opening direction 7.
  • the damping element may be oil-free to reduce contamination of the interior of the housing 2, and e.g. comprise a ring spring.
  • a stopper is provided which limits the movement of the movable second contact element 60 against the opening direction. Further stops may also limit further movement of the movable first and / or second contact element 20, 60.
  • the movable second contact element 60 is electrically connected to the second fixed contact 50, for example via a sliding contact (not shown).
  • the second latching element 70 is attached at a distal End (ie, in the axial direction to the separation distance or to the other, ie the first contact element arranged towards the end) of the movable second contact element 60.
  • the second contact element 60 and / or the second fixed contact 50 are arranged substantially rotationally symmetrical about the axis 8 of the separator.
  • the second contact element 60 and / or the second fixed contact 50 may in particular have a cylinder-like section.
  • the second contact element 60 can also be designed as a contact tulip.
  • the first latch member 40 and the second latch member 70 are designed to snap into one another as they approach each other. In the locked state, the latching elements 40 and 70 are mechanically connected to each other. This latched state is released again. According to a general aspect of the invention, the latched state is released when the latching elements 40 and 70 are pulled apart with a relative force exceeding the limit in the direction of the separation axis, thus exceeding an adhesion force (adhesive action) of the latched connection.
  • This property of the latching elements 40 and 70 can be realized, for example, by mechanical snapping as described with respect to FIGS FIGS. 4a to 5 is explained in more detail below.
  • magnetic latching elements can be provided.
  • the first and second latch members 40 and 70 each include a magnet.
  • the locked state is released by external action.
  • the latched connection can be made by an electromagnet, which can be selectively switched on and off.
  • the latched connection is released by turning off the electromagnet so that the adhesive force between the first and second latch members 40 and 70 is released and the latched connection 40, 70 is released.
  • the latched connection can be made by a bolt which is attached to one of the two movable contact elements and in a hole in the other of the movable contact elements and retractable. According to this aspect, the latched connection is released by extending the bolt out of the hole.
  • the disconnector when the disconnector is closed, the first contact element 20 and the second contact element 60 are electrically connected to one another connected; and with the disconnector open, the first contact element 20 and the second contact element 60 are electrically isolated from one another.
  • the isolator can be selectively opened or closed.
  • Fig. 1 the disconnector is shown in an open state.
  • the movable first contact element 20 is moved to the left. This direction to the left is therefore also referred to as opening direction.
  • opening direction As a result, it is electrically connected to the first fixed contact 10, but separated from the second fixed contact 50 by the isolating distance 9.
  • Fig. 2a the disconnector is shown in a closed state.
  • the movable first contact element 20 is moved to the right (ie counter to the opening direction), so that the movable first contact element 20 contacts the second fixed contact 50.
  • the movable first contact element 20 is movable counter to the opening direction in such a way that it makes electrical contact with the second fixed contact 50 (eg via a sliding contact).
  • the first and the second contact element 20 and 60 and thus also the first and the second fixed contact 10 and 50, electrically connected to each other with the disconnector disconnected and disconnected with the disconnector 9 separated.
  • the second fixed contact 50 carries with closed disconnector a major portion of the current flowing through the separator current.
  • the movable second contact element 60 carries only a smaller or even a negligible current.
  • the first latch member 40 is moved in the vicinity of the second latch member 70 such that the two latch members 40, 70 are interlocked and form a locked connection.
  • the first contact element 20 in the opening direction moves.
  • the opening direction is in Fig. 2b represented by arrow 7.
  • the disconnector is shown during an initial phase of the movement of the first contact element 20 in the opening direction 7.
  • the latched connection between the first latching element 40 and the second latching element 70 initially remains in a first position region 44 of the first contact element 20 relative to the separation axis, so that the movable second contact element 60 moves from the movable first contact element 20 in the opening direction 7 is taken.
  • first position range 44' is understood to mean a position range extending in the direction of the axis 8 of the separator, which in the direction of the return spring 80 by the position of the first latching element 40 and the second latching element 70 in the closed position of the separator is limited. In the direction of the fixed contact piece 10, the first position range is limited by a second position range 46 adjoining it.
  • the movement of the movable second contact element 60 takes place against the force of the return spring 80, which pulls the movable second contact element 60 against the opening direction 7.
  • a relative force that is, an adhesive force between the first latch member 40 and the second latch member 70 is transmitted, ie, the force required to the second contact element 60 against the force of the return spring 80 and against their own Mass inertia to accelerate so that the second contact element 60 is taken. Since the return spring 80 with increasing deflection of the second contact element 60 against the opening direction 7 increasingly strained, this relative force is also always greater.
  • the latched connection between the first latch member 40 and the second latch member 70 detaches.
  • the adhesive force of the latched connection 40,70 in one of the first position range 44 subsequent, second position range 46 of the first contact element 20 relative to the separation axis detachable / reducible is added to the first position region 44.
  • the second position region 46 also extends in the direction of the axis 8 of the separator.
  • While the second position area is bounded on one side by the first position area 44, it is bounded on its opposite side by a relative position by a position of the first latching element 40 and the second latching element 70, in which their previously latched connection is now canceled / is solved.
  • this release begins a in Fig. 2c illustrated separation phase of the movement, in which the second contact element 60 is retrieved from the return system 80 against the opening direction 7, and the second contact element 60 is separated from the first contact element 20.
  • Fig. 2b and Fig. 2c the first position region 44 and the second position region 46 are illustrated with reference to the end face of the first latching element 40 directed in the direction of the return spring 80.
  • the second contact element 60 is brought back to its original position, which in Fig. 1 is shown.
  • While in Fig. 2c illustrated separation phase can form an arc between these contact elements 20, 60 (not shown).
  • the contact elements 20 and / or 60 are provided with respective burn-off portions (not shown) for carrying an arc forming between them during and / or after the separation phase. Examples of such combustion sections are those in Fig. 5 illustrated burn-off rings. Since the movable contact elements 20 and 60 move apart very rapidly during the separation phase, this arc can be extinguished quickly and reliably, with only a small burnup of the contacts occurs. As a result, currents of 1600A can be switched under a voltage of 300V. It is a general aspect of the invention that the isolator is designed to switch a current of at least 1600A and a voltage of at least 300V.
  • This initial acceleration may be somewhat slowed down due to, for example, adhesive forces and would therefore delay arc extinguishment.
  • a motion reversal occurs at the movable second contact element.
  • a high relative speed between the movable contact elements can be achieved without the second movable contact element would have to absorb excessively high kinetic energy, which increases quadratically with the speed.
  • the second movable contact element has a moving mass, which is less than the moving mass of the first movable contact element. As a result, a high acceleration of the second movable contact element can be achieved during the separation phase.
  • the return spring is cocked, and during the separation phase of the movement, the return spring pulls the second movable contact member against the opening direction.
  • the return spring can store energy coming from the drive system, and then provide this energy within the time period relevant to the extinguishment of the arc within a short time for the acceleration of the second movable contact element.
  • the first latch member 40 is disposed radially outward of the second latch member 70 such that in the latched connection the second latch member 70 abuts radially outward of the first latch member 40, as in FIG Fig. 2b is shown.
  • the first latch member 40 is directed inwardly
  • the second latch member 70 is directed outwardly.
  • Fig. 3 shows an alternative embodiment, wherein in the engaged connection, the second latch member 70 in the direction of the axis 8 of the separator adjacent to the first latch member 40 abuts.
  • a snap connection between the latching elements 70 produced, for example by magnetic or mechanical properties of the latching elements.
  • FIGS. 4a and 4b show a first movable contact element 20 with a latching element 40 attached thereto and a second latching element 70 of a high voltage circuit breaker according to an embodiment of the invention.
  • These latching elements 40 and 70 can be used, for example, in the high-voltage disconnector of Fig. 1 to 2c be used.
  • the first latching element 40 (see FIG Fig. 4a ) has a radially inwardly directed (to the axis of the separator) directed projection 42.
  • This projection 42 comprises on its side facing the opening direction side (left side in Fig. 4a ) a first proximal surface piece 42b inclined toward the opening direction, and on its side facing away from the opening direction (right side in FIG Fig. 4a ) a first distal surface piece 42a inclined away from the opening direction.
  • distal and proximal here mean that the distal surface piece 42a is arranged in the axial direction closer to the separation distance or to the other (second) contact element than the proximal surface piece 42b. These two surface pieces 42a and 42b laterally define an approximately flat central portion of the projection 42.
  • the first latching element 40 and the projection 42 are substantially rigidly secured to the first movable contact element 20.
  • the surface piece 42b is formed as a burn-off portion and has an analogous function to the burn-off portions shown in FIG Fig. 5 is shown.
  • the second latching element 70 conversely has a latching head which is formed as a radially outward (away from the axis of the separator) directed projection 72.
  • This projection 72 comprises on its side directed towards the opening direction (left side in FIG Fig. 4b ) inclined toward the opening direction second distal surface portion 72a, and on its side facing away from the opening direction (right side in Fig. 4b ) a second proximal inclined from the opening direction Surface piece 72b.
  • the distal surface portion 72a is located in the axial direction closer to the separation distance and to the other (first) contact element than the proximal surface portion 72b.
  • the projection 72 is connected via an elastic element, here a bending spring 78, to the second movable contact element 60 (in FIG Fig. 4b not shown).
  • the second latching element (70) is formed integrally with the elastic element (78).
  • the second latch member 70 is urged radially outward by the elastic member 78, ie, in an engaging direction. To release the engaged connection, the second latching element 70 is radially inwardly, ie against the engagement direction, movable.
  • the second latch member 70 further includes an axial projection 78a disposed radially within a stopper piece.
  • the stopper piece is in Fig. 4b not shown, but analogous to the stopper piece of the element 62 of Fig. 5 arranged.
  • the stopper piece provides a stop for radial deflection of the second latching member 70 and defines a maximum deflection of the second latching member 70 radially outward, thus preventing deflection beyond this maximum deflection.
  • the first latch member 40 is disposed radially outward of the second latch member 70, as shown in FIG Fig. 1 to 2c is shown.
  • the projection 42 of the first latch member 40 protrudes toward the second latch member 70
  • the protrusion 72 of the second latch member 70 protrudes toward the first latch member 40.
  • the latching elements 40 and 70 are arranged so that the projections 42 and 72 overlap in the radial direction.
  • the latching elements 40 and 70 engage with each other by the first latching element 40 opposite to the opening direction, ie to the right, so the second latching element 70 is passed over that the first latching element 40, the second latching element 70 presses against the force of the elastic member 78 in the direction of the axis of the separator.
  • the latching takes place in a state in which the second movable contact element abuts against and thus not further against the opening direction, ie not further to the right, can be moved. Since the second distal surface portion 72a is inclined toward the opening direction, the engagement can be smooth and low-abrasion. For this it is advantageous - but not mandatory - that the inclinations of the distal surface pieces 42a and 72a correspond to each other.
  • the resilient member 72 pushes the second latch member up again (in the engagement direction) such that the proximal surface pieces 42b and 72b abut each other and engage each other. If the movable first contact element 20 is then moved in the opening direction (to the left), the movement in the first position region 44 is transmitted via the contact of the proximal surface pieces 42b and 72b to the second latching element 70 and thus to the movable second contact element 50.
  • this force presses the second latching member 70 against the spring force of the elastic member 78 in the direction of the axis of the separator (against the engagement direction) until the distal surface piece 42a engages from the distal surface portion 72a and the proximal surface portion 72b has exceeded, so that the latching connection dissolves and the second latching element 70 is pulled past the first latching element 40 against the opening direction of the first latching element 40 pulled away.
  • the inclinations of the proximal surface pieces 42b and 72b correspond to each other and are adapted to the spring constant of the elastic member 78 so that the threshold value of the adhesive force is reached when the separation phase in the second position region 46 is to begin.
  • the inclination of the second distal surface piece 72a is selected such that an arc is led away from the surface piece 72a as quickly as possible.
  • a flat (a small angle relative to the axis of the separator having) inclination of the surface portion 72a is advantageous.
  • the second distal and second proximal surface portions 72a, 72b are one another different inclination.
  • the slope of the second distal surface portion 72a may be shallower than the slope of the second proximal surface portion 72b.
  • the second proximal surface piece 72b is located more than 1 cm in the axial direction away from an opening direction of the second latching member 70 toward the opening direction. This ensures that, even after releasing the latching connection, a length of the second latching element 70 is still available, along which the first latching element 40 can slide. This length allows the second latch member 70 to accelerate relative to the first latch member 40 before the latch members 40 and 70 separate, that is, the first latch member 40 extends from the opening direction end of the second latch member 40 Snap-on element 70 removed. Thereby, a considerable relative speed can be achieved at the time of separation, which favors a rapid quenching of the arc.
  • Fig. 5 shows an enlarged view of a separator according to another embodiment of the invention.
  • the first and second movable contact elements 20 and 60 are visible, and the first and second latching elements 40 and 70.
  • the latching elements 40 and 70 correspond to those in Figs Fig. 4a and 4b represented elements, and the description of FIGS. 4a and 4b also apply to Fig. 5 , In Fig. 5
  • These elements 40 and 70 are shown in the locked state.
  • the elastic member 78 is realized by a leaf spring instead of by a bending spring.
  • an erosion portion 62 of the second contact element is provided.
  • a burn-off portion 62 is disposed at an axial (distal) end of the second contact piece 60, for example adjacent to the second snap-in member 70 in the axial direction.
  • the burn-off portion may, in particular, be as shown in FIG Fig. 5 illustrated, be designed as a cap that covers the second contact piece 60 and / or the second latching element 70 in the axial direction at least partially.
  • a consumable portion of the first contact member is defined by the surface piece 42a. This burn-up portion 42 a is integrally formed with the first latch member 40.
  • the burnout portions 62 and 42a are arranged to intervene during and / or after the separation phase to wear training arc.
  • the burnup portion 62 of the second contact member 60 is disposed adjacent to the second latch member 70, more specifically, adjacent the second distal surface piece 72a.
  • the burn-off portion 62 also forms that described above with reference to FIG Fig. 4a described stopper.
  • Analogous to the Figures 2a-2b also points in the 4 to 5 described embodiment each have a first position range 44 and a second position range 46.
  • the first position area 44 is defined in the direction of the return element 80 by the position of the first latching element 40 relative to the second latching element 70 when the isolator is closed. In this case, the inclined surface pieces 42b and 72b face each other. In the direction of the fixed contact piece 10, the first position region 44 is bounded by a second position region 46 adjoining it.
  • the boundary of the first position portion 44 to the second position portion 46 is where the distal surface portion 42a of the first latch member 40 leaves the apex formed by the distal surface portion 72a and the proximal surface portion 72b of the second latch member 70, so that the effect of the held by the elastic member 78 holding force between the first latch member 40 and second latch member 70 is released.
  • the invention has been explained by way of example with reference to a protective gas separator. However, it is also suitable for other disconnectors for high and medium voltage applications, especially substations, e.g. for vacuum circuit breaker, self-blower circuit breaker, etc.

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  • Gas-Insulated Switchgears (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP12173338A 2011-07-04 2012-06-25 Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci Withdrawn EP2544203A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12173338A EP2544203A1 (fr) 2011-07-04 2012-06-25 Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11172528 2011-07-04
EP12173338A EP2544203A1 (fr) 2011-07-04 2012-06-25 Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci

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EP2544203A1 true EP2544203A1 (fr) 2013-01-09

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EP12173338A Withdrawn EP2544203A1 (fr) 2011-07-04 2012-06-25 Séparateur de charge haute tension électrique et procédé d'ouverture de celui-ci

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US (1) US20130008873A1 (fr)
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CN103531371B (zh) * 2013-10-18 2015-09-02 通能顺达科技国际有限公司 一种快速双向三状态切换电力开关装置
KR102123263B1 (ko) * 2016-01-07 2020-06-16 주식회사 쏠리드 통신모듈 어셈블리
EP3226274A1 (fr) * 2016-03-31 2017-10-04 Siemens Aktiengesellschaft Sectionneur à division d'arc adapté aux moyennes et hautes tensions et méthode de déconnexion au moyen dudit sectionneur
CN105869953B (zh) * 2016-05-04 2018-10-23 中国船舶重工集团公司第七一〇研究所 应用于低压、中压或高压短路灭弧的开关装置
RU178682U1 (ru) * 2017-09-27 2018-04-18 Закрытое акционерное общество "Группа компаний "Электрощит"-ТМ Самара" Устройство блокировки и фиксации привода разъединителя и блокировки выключателя
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Cited By (6)

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Publication number Priority date Publication date Assignee Title
EP3048716A1 (fr) * 2015-01-20 2016-07-27 Siemens Aktiengesellschaft Agencement de convertisseur doté de contacts mobiles, doté cependant d'un bloc de convertisseur fixe
WO2016116213A1 (fr) * 2015-01-20 2016-07-28 Siemens Aktiengesellschaft Dispositif convertisseur à contacts mobiles mais bloc convertisseur fixe
CN107112913A (zh) * 2015-01-20 2017-08-29 西门子公司 具有能移动的触头、但位置固定的变流器组件的变流器设备
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CN107112913B (zh) * 2015-01-20 2018-10-16 西门子公司 具有能移动的触头、但位置固定的变流器组件的变流器设备
US10153709B2 (en) 2015-01-20 2018-12-11 Siemens Aktiengesellschaft Converter arrangement comprising movable contacts, but immovable converter assembly

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KR20130004884A (ko) 2013-01-14
US20130008873A1 (en) 2013-01-10

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