WO2008009603A1 - Elektrisches schaltgerät mit einem längs einer bewegungsachse bewegbaren kontaktstück - Google Patents
Elektrisches schaltgerät mit einem längs einer bewegungsachse bewegbaren kontaktstück Download PDFInfo
- Publication number
- WO2008009603A1 WO2008009603A1 PCT/EP2007/057088 EP2007057088W WO2008009603A1 WO 2008009603 A1 WO2008009603 A1 WO 2008009603A1 EP 2007057088 W EP2007057088 W EP 2007057088W WO 2008009603 A1 WO2008009603 A1 WO 2008009603A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact piece
- sealing
- switching device
- electrical switching
- sealing element
- Prior art date
Links
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
- H01H31/003—Earthing switches
Definitions
- the invention relates to an electrical switching device with a movable along a movement axis contact piece, which is mounted on a capsule housing.
- Such an electrical switching device is known for example from WO 2004/093276.
- an electrical switching device is designed as a grounding switch, which can be used in a gas-insulated switchgear.
- the electrical switching device is equipped with a manual drive.
- the movable contact piece is bare ⁇ arranged completely inside the gas chamber at.
- the enclosure housing is formed in the region of the contact piece wegbaren be ⁇ as a bellows, whereby the region is reversibly deformable.
- the bellows is preferably formed of a metal to ensure a permanent gas tightness.
- the movable contact piece When the movable contact piece is arranged such that it penetrates a wall of the encapsulating housing, ⁇ ver can be dispensed with the use of a gas-tight bellows fully ⁇ constantly.
- the contact piece can be used for contacting with a counter-contact piece arranged in the interior of the encapsulating housing.
- the arranged outside of the encapsulating housing portion of the contact piece is easily accessible ⁇ to drive the contact piece.
- the contact piece is equipped with a manual drive. However, it can also penetrate electromagnetic, hydrau ⁇ metallic or spring operating mechanisms and other Antriebsein ⁇ directions for use.
- the housing itself can be shaped such that a secure reception of the Kunststoffstü ⁇ ckes is given.
- a bearing can be designed, for example, in the manner of a bush, wherein the contact piece initially has a preferably substantially rotationally symmetrical, in particular cylindrical, outer contour in the region of the bearing.
- the axis of movement of the contact piece is then defined as a rotation or symmetry axis of the movable Diesstü ⁇ ckes.
- the movable contact piece may also have a different cross-section, for example ova ⁇ le cross-sections, quadrangular cross-sections and all other polygonal cross-sections.
- the contact piece is formed, for example, bolt-shaped, for example, a groove and engaging in the groove nose prevents rotation of the contact piece in its storage.
- the bearing is cast on the encapsulating.
- a bearing such as a crater-genbuchse, mounted on the encapsulating housing and angularly rigid ⁇ is connected thereto. This can be done for example by means of a weld, a screw connection / riveting or another suitable joining technique.
- a further advantageous embodiment can provide that the encapsulating completes its internal volume by a Cape ⁇ selungsgephaseuse surrounding medium gas tight.
- a gas-tight encapsulating housing makes it possible to fill the interior of the encapsulating housing with a medium and to keep it inside.
- a medium may for example be a fluid.
- an electronegative gas is used, such as, for example, sulfur hexafluoride, which is located under elevated pressure in the interior of the capsule housing. Increasing the pressure increases the dielectric strength of the gas. Characterized redu ⁇ themselves in the interior of the encapsulating clearances to be maintained between assemblies which have different electrical potentials. Thus, a possibility for the construction of compact arrangements is created, which have in the interior electrical potential leading conductors, switching devices and other electrical equipment.
- a further advantageous embodiment may provide that the electrical switching device has a first sealing element and a second sealing element for sealing the contact piece on the encapsulating housing, wherein the first sealing ⁇ element in a first position of the contact piece and the two ⁇ th sealing element in a second position of the contact piece unfolds its sealing effect.
- the insertion point is subject to a certain Ab ⁇ seal on the encapsulating.
- the seal prevents dirt particles from getting into the interior of the encapsulating housing during a switching movement, for example.
- ⁇ sondere in an embodiment of the encapsulating as a gas-tight enclosure housing a particularly effective from ⁇ seal is necessary to prevent the escape of trapped in the interior of the encapsulating fluids.
- An electrical switching device has two characteristic layers . This is, on the one hand, a switch-on position and, on the other hand, a switch-off position. Typically, the switching devices remain in these end positions during their operation for longer periods. Only the relatively short periods in which the switching device is transferred from one of the end positions to the other end position, that is, the periods in which the movable contact piece is moved, interrupt the dormant Positions in the end positions. It is therefore advantageous that the first position is a switch-on position and the second position ei ⁇ ne OFF position (or vice versa). Thus, the task for the first sealing element to seal the contact piece with respect to the encapsulating in the on position.
- each of the sealing elements in each case serves especially for the sealing in one layer, the sealing elements can be formed in different ways from ⁇ in order to be particularly adapted to the requirements to be met in the respective situation with regard to their sealing effect.
- the two sealing elements support each other in their sealing effect.
- a further advantageous embodiment can provide that the first sealing element and the second sealing element unfold their sealing effect alternately during a switching movement.
- the movable contact piece is moved in the bearing relative to the encapsulating housing.
- DA in sections are arranged in the open position outside the encapsulating introduced into the interior of the Cape ⁇ selungsgephaseuses and vice versa.
- this can be achieved by the sealing elements unfold their sealing effect alternately during a switching movement.
- the first sealing element can assume its position for removal. Folding a sealing effect have not yet taken, while the second sealing member his sealing position in ⁇ nehat.
- the second sealing element has no sealing effect, while the first sealing element unfolds sealing action between the encapsulating housing and the movable contact piece.
- a variant embodiment further provide that at least one of the sealing elements for Ent ⁇ folding of the sealing effect is applied to a rotating about the contact piece collar.
- annular sealing elements can easily abut a circumferential collar of the contact piece.
- the collar is worked out in the manner of a projecting shoulder of the outer contour of the contact piece.
- the contact piece has a profiling, such as a groove or the like, which forms a circumferential collar on the contact piece. It is advantageous if the circumferential collar rotates substantially transversely to the axis of movement of the contact piece.
- a further advantageous embodiment may provide that the first and the second sealing element with respect to the movement axis of the contact piece ⁇ be axially spaced from each other, wherein between the two sealing elements, a third sealing element is arranged.
- the third sealing element maintains its sealing effect.
- the third sealing member it is possible, for example, borrowed to lift a sealing effect of the first or the second sealing member or both sealing elements and to continue to ensure via the third seal member has a waterproofing ⁇ processing of the contact piece. So it's game as possible ⁇ , during a switching motion processing a dense, especially a gas-tight seal to ensure between the encapsulating housing and the movable contact piece. While the first or the second sealing element unfold their sealing effect, it can be advantageously provided that the third sealing element additionally develops its sealing effect. Thus, a simpler change between the first and the second sealing element is made possible. It is then no longer necessary that insertion / discontinuation of the sealing effects of the first and second sealing element time to make overlapping as it can be made to the third you ⁇ processing element.
- first and / or second sealing element is / are an axial seal.
- An axial seal is offset due to a movement in the direction of the axis of movement of the movable contact piece in Dichtwir ⁇ kung.
- acting in the axial direction of pressing forces can act on the first and on the second sealing element.
- this should be gas-tight connected to the contact piece, for example by welding or a einstü- ckiges forming with the movable contact piece.
- the circumferential collar is displaced in a movement of the Kunststoffstü ⁇ ckes in the axial direction, that is, in the direction of the axis of movement of the movable contact piece and, for example, can press a peripheral sealing element against a portion of the encapsulating.
- the sealing element unfolds its Dichtwir ⁇ kung.
- the third sealing element is a radial seal.
- the contact forces on the sealing element act radially to the axis of movement of the movable contact piece.
- the third sealing element should be the same as the second and the first sealing element. axially to the axis of symmetry of the movable contact piece, wel ⁇ che is simultaneously the axis of movement, be arranged.
- the third beat ⁇ processing element is inserted in a circumferential groove in the bearing. The circumferential groove can be arranged on the one Kapse ⁇ ment housing, so that the movable contact ⁇ piece is arranged movable relative to the third sealing element.
- the sealing element is mounted stationary on the contact piece.
- a radial seal is able to seal relative movements, for example, between the movable contact piece and the encapsulating housing.
- axial movements along the axis of movement of the contact piece and also rotational movements about the movement axis can be performed sealed in a sufficient quality.
- At least one of the sealing elements is surrounded by a reversibly deformable casing, which rests against the encapsulating housing.
- a reversibly deformable cladding may be, for example, a plastic jacket, which surrounds the portion of the movable contact piece extending outside of the encapsulating housing. This jacket can extend substantially radially around the movement axis of the contact piece and rest against the encapsulation housing. This will be outside the
- provision may be made, for example, for the contact piece to be provided with a lubricious surface coating, at least in the area between the first and the second sealing element.
- the casing may be arranged at a distance from the surface of the first contact piece.
- a further advantageous embodiment can provide that the movable contact piece is contacted with the encapsulating electrically conductive.
- the movable contact piece For certain switching tasks such as earthing scarf ⁇ tions, it is necessary to apply the movable contact piece with Erd ⁇ potential.
- the encapsulating housing made of an electrically conductive material, this usually has ground potential.
- An electrical contact between encapsulating and movable contact piece allows easy grounding of the contact piece.
- an electrically conductive flexible band such as a braided copper band, connects the contact piece with the encapsulating housing. This is especially true of
- This elekt ⁇ risch insulating bush allows low-friction sliding of the contact piece in the guide of the encapsulating. Furthermore, the bush allows easy insertion of grooves, shoulders, recesses, etc., for example, to provide sealing surfaces for sealing elements. Furthermore, the insulated guide allows the contact piece, the electrical switching device, for example, for testing purposes use, wherein the electrical connection to the Kapse ⁇ ment housing is to lift. Thus, the potential of the counter ⁇ contact of the movable contact piece can be led to the outside.
- a sliding contact arrangement contacts the contact piece with the encapsulating housing.
- a sliding contact arrangement for example, has the advantage over an electrically conductive flexible band that hardly any additional installation space is required. Furthermore, the sliding contact arrangement can be inserted in a simple manner in an electrically shielded manner within the guide of the movable contact piece.
- so-called contact strips can be arranged circumferentially around the movable contact piece. These contact strips are provided with elevations which mutually electrically contact both the contact piece and the Kapse ⁇ ment housing, thus providing a plurality of contact points that ensure a permanent electrical contact between encapsulating and bewegba ⁇ rem contact piece during a movement. Inserted into the guide of the contact piece grooves are suitable for receiving contact elements of Gleitromeanord- voltage.
- Figure 1 shows a cross section through an electrical Wennge ⁇ advises
- the 2 shows a drive possibility of a movable contact ⁇ piece
- Figure 3 shows a mounting possibility of a guide for the movable contact piece
- Figure 4 shows a possibility of the embodiment of a deflection point for a drive device
- FIG. 1 shows a cross-section through an electrical one
- Gas-insulated switchgear has a gas-tight enclosure housing.
- the encapsulation housing 1 is substantially tubular and includes an electronegative gas in its interior. Ent ⁇ long a pipe longitudinal axis 2 of the encapsulating housing 1 it ⁇ is an electrical conductor stretches 3.
- the electrical conductor 3 is provided substantially with a cylindrical external thread Stalt and itself as a hollow cylinder or Vollzy- relieving of an electrically conductive material such as copper or Aluminum formed.
- the electrical conductor 3 is arranged electrically insulated from the encapsulating housing 1.
- Both the electrical conductor 3 and the encapsulating housing 1 extend essentially coaxially to the tube longitudinal axis 2. However, it can also be provided that the electrical conductor 3 is not coaxial with the tube longitudinal axis 2. This can be the case in particular if, within an encapsulating housing 1, a plurality of electrical conductors preferably different phases of an electric power transmission system are arranged. Substantially radially to the tube longitudinal axis 2, a movement axis extends 4. The movement axle 4 corresponds to the axis along which a rotationally symmetrical movable contact piece 5 can be for ⁇ .
- the movement axis 4 divides a movable contact piece 5.
- the movable contact piece 5 is in its off position and on the other hand, the movable contact piece 5 is shown in its closed position. In the closed position, the movable contact piece 5 is retracted into a mating contact piece 6. In the switch-off position, the movable contact piece 5 is galvanically isolated from the mating contact piece 6.
- the mating contact piece 6 is constructed tulip-shaped, that is, coaxially to the movement axis 4, a plurality of contact fingers 6b, 6c, 6d, 6e are arranged, which elastically backfeed at a retraction of the movable contact piece 5 and with the movable contact piece 5 in galvanic
- the mating contact piece 6 is provided with a hood 6a.
- the encapsulating housing 1 is provided with a sprue bushing 7.
- the sprue bush 7 forms a thickening of a wall of the encapsulating housing 1 in the area of the passage of the bewegba ⁇ ren contact piece 5. With a sufficient wall thickness of the encapsulating housing 1 is possible to dispense at such a sprue, since given a suffi ⁇ sponding storage by the wall thickness itself is that allows a guide of Needlesstü ⁇ ckes 5.
- the sprue bush 7 comprises a first umlau ⁇ Fende groove 8 and a second circumferential groove. 9 The grooves 8, 9 are incorporated in the running surface of the sprue bushing 7.
- the first circumferential groove 8 serves to receive a clock Gleitkon ⁇ element 10.
- the sliding contact member 10 can ⁇ example, from rotating worm springs or a tape with embossed contact blades may be formed.
- a multiplicity of contacting points are formed, which enable electrical contacting of the movable contact piece 5 with the encapsulating housing 1.
- the encapsulating housing 1 is made for example of electrically conductive cast, for example, a cast aluminum, wherein the encapsulating housing 1 itself is acted upon Erdpoten ⁇ tial.
- the ground potential is also applied to the movable contact piece 5 übertra ⁇ gene.
- the electrical conductor 3 is also beauf ⁇ strike to ground potential.
- dung switches employ electrical ⁇ specific switching device with its movable contact piece 5 as Er, to also act on, for example, at a safety circuit of the gas insulated switchgear the electrical conductor 3 with ground potential.
- the third seal member 11 is in the form of a radial seal, that is, relative to the scan axis 4 act in the radial sealing forces Rich ⁇ processing. This makes it possible for the third sealing element 11 to develop a sufficient sealing effect during a movement of the movable contact piece 5.
- the movable contact piece 5 with a first circumferential collar 12 and a second circumferential collar 13 provided.
- the circumferential collar 12, 13 may be configured in different variants.
- the first circumferential collar 12 may have the shape of a ⁇ schma len cylinder and the second circumferential collar 13 may be a narrow cylinder with rounded edges.
- other embodiments of circumferential collar are possible.
- such a collar can also be formed by a reduction in the diameter of the movable contact piece 5 (see FIG. 5).
- a first sealing element 12a is arranged circumferentially on the first collar 12.
- On the second collar 13 circumferentially a two ⁇ tes sealing element 13a is arranged.
- the second sealing element 13a is pressed by the second circumferential collar against the inner wall of the Kapselungsge ⁇ housing 1.
- an axial pressing force is applied to the second sealing element 13a and this deformed.
- the electrical contact piece 5 is sealed in its off ⁇ switching position gas-tight relative to the encapsulating 1.
- the first sealing element 12a unfolds in the off position no sealing effect.
- first sealing element 12a and the second sealing element 13a each alternately with the encapsulating housing 1 together ⁇ men to ensure a gas-tight transition.
- the third sealing element 11 takes over the sealing of the movable contact piece 5.
- the third sealing member 11 as a radial seal circulating in the second Groove 9 is introduced, a sufficient gas-tight transition between the movable contact piece 5 and the encapsulating housing 1 is also given during the movement.
- the third sealing element 11 can develop its sealing effect both with axial displacements and with rotational movements about the movement axis 4.
- the first sealing element 12a as a surface seal in the switch ⁇ position of the movable contact piece 5
- the second sealing element 13a in the off position as a surface seal ensures a gas-tight transition
- the third sealing member 11 due to its design as a radial seal during a Relative movement between encapsulating 1 and movable contact piece 5 assumes the sealing effect.
- the arranged in the axial direction between the first and second seal members 12a, 13a portion of the Move ⁇ cash contact piece 5 is that portion which alternately ⁇ , within the encapsulating housing 1 or outside the encapsulating housing 1 is arranged.
- the Move ⁇ cash contact piece 5 switch-on, switch-off position, intermediate position during movement
- contact piece 5 is surrounded by a sheath fourteenth
- the sheath 14 is for example a plastic which is repeatedly deformable.
- the casing 14 abuts against the sprue bushing 7 of the encapsulating housing 1. This ensures that the components provided on the movable contact piece 5 for electrical contacting or sealing are protected against dust and dirt.
- the sheath 14 is, for example, a substantially hollow-cylindrical sheath, which is arranged at a distance from the contact piece 5 and at the free end of the contact piece 5, which is outside the encapsulating housing 1, is close to ⁇ .
- the contact piece 5 is provided at its outside of the encapsulating housing 1 free end with a handle, which allows a direct movement of the contact piece by hand.
- a bolt 15 lying transversely to the movement axis 4 is fastened to the movable contact piece 5, wherein a rotatably mounted lever 16 acts on the bolt.
- the rotatably mounted lever 16 is shown for clarity with an un ⁇ broken full line.
- an electric drive can bring about a movement of the contact piece 5 via a pivot bearing 16a of the lever 16.
- FIG. 2 shows a further variant of a drive of wegbaren be ⁇ contact piece 5 via the lever 16.
- the lever 16 via a shaft with a hand lever 17th On the Hand lever 17 and the shaft can be transmitted to a movement of the movable contact piece 5 over greater Entfernun ⁇ gen time.
- FIG. 3 shows a further variant of the embodiment of a guide bush 18 in the cutout.
- the guide bushing 18 is by means of a screw 19 or a rivet connection, a welded connection or otherwise suitable connection with the encapsulating housing 1 gastight verbun ⁇ .
- corresponding sealing members may be additionally inserted in the joint between the guide bushing 18 and Kapselungsge ⁇ housing.
- a guide bush 18 makes it possible to produce standardized Kapselungsge- housing and to introduce, if necessary, subsequently an opening in a wall of the encapsulating housing 1 and set up ei ⁇ ne guide bushing 18 in a wall of the encapsulating housing. 1 This allows a flexible choice of the location of an electrical switching device according to the invention. Furthermore, this form of embodiment of a guide bush 18 is also suitable for retrofitting existing installations.
- FIG. 4 also shows how the screw connection 19 can also be used in the case of the use of a screwed-on guide bushing 18 in order to arrange a bearing block 20 on the encapsulation housing 1 in an angularly stable manner.
- a lever 16 can then be rotatably mounted.
- FIGS. 5, 6, 7 and 8 each show different mechanisms for contacting or sealing the movable element
- Contact piece 5 relative to a capsule housing 1 Darge ⁇ represents.
- the movement axis 4 is shown as well as a section of an encapsulating housing 1, wherein a movable contact piece 5 engages through the housing 1 Kapselungsge ⁇ .
- a first circumferential collar 12 and a second circumferential collar 13 are each formed by changes in diameter, that is, the portion which is arranged between the collars 12, 13 is reduced in diameter continuously.
- a first and a second sealing element 12a, 13a are respectively assigned to the first and the second peripheral collar 12, 13 in a fixed location.
- the guide bush which is ge ⁇ forms in the encapsulating 1, designed beveled at its edges.
- circumferential depressions 21 are formed into which the sealing elements 12a, 13a can be pressed.
- the first and the second sealing element 12a, 13a are acted upon in both the axial and in the radial direction with a force.
- FIG. 6 shows a further possibility of arranging axial sealing elements 12a, 13a.
- a circumferential groove is formed, which is completely bounded by the Kapse ⁇ ment housing 1.
- a first and a second sealing element 12a, 13a are inserted.
- Seal members 12a, 13 protrude beyond the groove in the unloaded state, so that a sealing action between the collar 12, 13 of the contact piece 5 and the encapsulating housing 1 is effected in the on or in the off state of the movable contact piece 5.
- a recess is provided in the edge region of the guide bush, similar to FIG. 5, which in cooperation with the contact piece 5 forms a groove.
- the circumferential groove is bounded on the one hand by the encapsulating housing 1 and on the other hand by the movable contact piece 5.
- a first and a second sealing element 12a, 13a are arranged, which develop a sealing effect in the on or in the off state.
- a first collar 12 is formed by a change in diameter of the movable contact piece 5.
- the second collar 13 is made by a narrow attached to the movable contact piece 5 ring.
- a guide bush is gebil ⁇ det by an inserted into the Cape ⁇ selungsgepuruse 1 Insulating 22nd
- the insulating element 22 has an on the outside (with respect to the contact Stel ⁇ le the electrical switching device) introduced circumferential groove for receiving the first seal member 12a in the insulating material element 22nd
- Wei ⁇ terhin is a second circumferential groove 9 in the region of the sliding portion of the movable contact piece 5 is introduced ⁇ for receiving the third sealing member 11 and for the realization of radial contact forces on this radial sealing element.
- a third sealing element 11 is inserted.
- the second circumferential collar 13 For receiving and holding the second sealing element 13a, the second circumferential collar 13 has a groove, in wel- rather, the second seal member 13a is held.
- a flexible copper strip 23 is elec ⁇ trically conductively connected to the encapsulating housing 1 and the movable contact piece 5.
- the flexible copper strip 23 can be solved if necessary, so that for testing purposes, an elekt ⁇ cal conductor, which is arranged in the interior of the encapsulating 1, can be contacted via the movable contact piece.
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Contacts (AREA)
- Slide Switches (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800272273A CN101490779B (zh) | 2006-07-18 | 2007-07-11 | 带有可沿运动轴线运动的接触件的电气开关装置 |
EP07787362A EP2041763A1 (de) | 2006-07-18 | 2007-07-11 | Elektrisches schaltgerät mit einem längs einer bewegungsachse bewegbaren kontaktstück |
US12/374,010 US8119946B2 (en) | 2006-07-18 | 2007-07-11 | Electrical switching device having a contact piece which can move along a movement axis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006033898A DE102006033898A1 (de) | 2006-07-18 | 2006-07-18 | Elektrisches Schaltgerät mit einem längs einer Bewegungsachse bewegbaren Kontaktstück |
DE102006033898.7 | 2006-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008009603A1 true WO2008009603A1 (de) | 2008-01-24 |
Family
ID=38476096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/057088 WO2008009603A1 (de) | 2006-07-18 | 2007-07-11 | Elektrisches schaltgerät mit einem längs einer bewegungsachse bewegbaren kontaktstück |
Country Status (6)
Country | Link |
---|---|
US (1) | US8119946B2 (de) |
EP (1) | EP2041763A1 (de) |
CN (1) | CN101490779B (de) |
DE (1) | DE102006033898A1 (de) |
RU (1) | RU2437179C2 (de) |
WO (1) | WO2008009603A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2749513A1 (de) | 2012-12-27 | 2014-07-02 | Valmet Technologies, Inc. | Verfahren zum Betrieb einer Längsschneiderwickel für Wickelfasernetze |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012035596A1 (ja) * | 2010-09-13 | 2012-03-22 | 三菱電機株式会社 | ガス絶縁電気機器 |
US9929546B2 (en) * | 2014-10-03 | 2018-03-27 | Eaton Intelligent Power Limited | Electrical system and support assembly therefor |
DE102017101414A1 (de) * | 2017-01-25 | 2018-07-26 | Sma Solar Technology Ag | Emv abschirmende dichtung und elektrisches oder elektronisches gerät mit einer dichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US3761651A (en) | 1971-03-18 | 1973-09-25 | Alsthom Cgee | Grounding device for a point in a conductive casing |
DD250212A1 (de) | 1986-06-18 | 1987-09-30 | Buchwitz Otto Starkstrom | Erdungsschaltgeraetanordnung an einer gekapselten gasisolierten schaltanlage |
WO2004093276A2 (de) | 2003-04-11 | 2004-10-28 | Siemens Aktiengesellschaft | Erdungsschalter mit einem bewegbaren kontaktstück |
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DE250212C (de) | 1912-03-12 | 1912-08-09 | ||
DE7815097U1 (de) * | 1978-05-19 | 1978-09-14 | Calor-Emag Elektrizitaets-Aktiengesellschaft, 4030 Ratingen | Anordnung zum Eingriff in eine gekapselte Hochspannungsanlage |
US4354072A (en) * | 1979-10-22 | 1982-10-12 | General Electric Company | Pyrolytic cartridge interruption assistance actuator for puffer breaker |
US4499349A (en) * | 1981-11-20 | 1985-02-12 | Kabushiki Kaisha Meidensha | Vacuum interrupter |
DE3224940A1 (de) * | 1982-07-03 | 1984-01-05 | Brown, Boveri & Cie Ag, 6800 Mannheim | Erdungsschalter fuer isolierstoffgekapselte oder metallgekapselte und mit isolierstoff ausgekleidete mittelspannungs- oder hochspannungsschalt- und -verteileranlagen |
JPS59214122A (ja) * | 1983-05-20 | 1984-12-04 | 株式会社明電舎 | 真空インタラプタ |
JPH0479117A (ja) * | 1990-07-19 | 1992-03-12 | Fuji Electric Co Ltd | ガス絶縁開閉装置 |
RU2138092C1 (ru) | 1998-03-23 | 1999-09-20 | Уфимское государственное производственное предприятие "ЭЛЕКТРОАППАРАТ" | Вакуумный выключатель и способ его работы (варианты) |
NO316818B1 (no) * | 2002-03-25 | 2004-05-18 | Vetco Aibel As | Bryteranordning for undersjoisk kraftdistribusjon |
JP3881314B2 (ja) * | 2003-01-10 | 2007-02-14 | 株式会社日本Aeパワーシステムズ | 開閉装置用油圧操作装置 |
DE502004001795D1 (de) * | 2004-02-27 | 2006-11-30 | Abb Technology Ag | Kompaktes Erderschaltgerät für gasisolierte Schaltanlagen |
-
2006
- 2006-07-18 DE DE102006033898A patent/DE102006033898A1/de not_active Withdrawn
-
2007
- 2007-07-11 RU RU2009105485/07A patent/RU2437179C2/ru not_active IP Right Cessation
- 2007-07-11 US US12/374,010 patent/US8119946B2/en not_active Expired - Fee Related
- 2007-07-11 EP EP07787362A patent/EP2041763A1/de not_active Withdrawn
- 2007-07-11 CN CN2007800272273A patent/CN101490779B/zh not_active Expired - Fee Related
- 2007-07-11 WO PCT/EP2007/057088 patent/WO2008009603A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3761651A (en) | 1971-03-18 | 1973-09-25 | Alsthom Cgee | Grounding device for a point in a conductive casing |
DD250212A1 (de) | 1986-06-18 | 1987-09-30 | Buchwitz Otto Starkstrom | Erdungsschaltgeraetanordnung an einer gekapselten gasisolierten schaltanlage |
WO2004093276A2 (de) | 2003-04-11 | 2004-10-28 | Siemens Aktiengesellschaft | Erdungsschalter mit einem bewegbaren kontaktstück |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2749513A1 (de) | 2012-12-27 | 2014-07-02 | Valmet Technologies, Inc. | Verfahren zum Betrieb einer Längsschneiderwickel für Wickelfasernetze |
Also Published As
Publication number | Publication date |
---|---|
DE102006033898A1 (de) | 2008-01-31 |
US20100072175A1 (en) | 2010-03-25 |
CN101490779A (zh) | 2009-07-22 |
RU2437179C2 (ru) | 2011-12-20 |
US8119946B2 (en) | 2012-02-21 |
CN101490779B (zh) | 2012-05-30 |
EP2041763A1 (de) | 2009-04-01 |
RU2009105485A (ru) | 2010-08-27 |
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