EP1831903A1 - Vakuumschalter mit grosser stromtragfähigkeit - Google Patents
Vakuumschalter mit grosser stromtragfähigkeitInfo
- Publication number
- EP1831903A1 EP1831903A1 EP05812681A EP05812681A EP1831903A1 EP 1831903 A1 EP1831903 A1 EP 1831903A1 EP 05812681 A EP05812681 A EP 05812681A EP 05812681 A EP05812681 A EP 05812681A EP 1831903 A1 EP1831903 A1 EP 1831903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- heat pipe
- contact
- vacuum
- contact piece
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims description 34
- 239000003990 capacitor Substances 0.000 claims description 21
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- -1 for example Chemical compound 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/62—Heating or cooling of contacts
-
- 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
- H01H9/52—Cooling of switch parts
- H01H2009/523—Cooling of switch parts by using heat pipes
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
- H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
Definitions
- the invention relates to the field of switch technology, in particular the high and medium voltage switch technology and especially to vacuum interrupters. It relates to a vacuum interrupter chamber and a method for cooling a vacuum interrupter chamber according to the preamble of the independent claims.
- Vacuum switching chambers are known from the prior art, which are forced to increase the current carrying capacity forced.
- the vacuum interrupter chamber is arranged in an insulating tube, which is flowed through by means of a blower of air, so that even at high current load too high heating of the vacuum interrupter chamber is avoided.
- blower is active, that is, it has to be driven. It has to be maintained and can fail.
- the blower can be made redundant, whereby a greater reliability can be achieved. Nevertheless, a greater reliability of cooling is desirable.
- a vacuum interrupter chamber which uses a heat pipe with coolant for heat dissipation of the contact pieces, which couples to the fixed upper contact piece and works on the principle of gravity.
- the lower contact piece which is formed without a heat pipe, movably connected via a bellows with the housing.
- a vacuum interrupter chamber is described in EP 1 002 758 A2, in which an axial bore for receiving a heat pipe is provided in the upper lifting conductor which can be moved by a bellows. The whole mass of the heat pipe is moved with movement of the contact piece.
- the inventive vacuum switching chamber has at least one
- the heat pipe (also known as heat pipe) is mainly used to dissipate heat, which is generated by a flowing in the closed state through the vacuum interrupter chamber electrical current (rated current).
- the vacuum interrupter chamber has at least two contact pieces, and the current flows through the two contact pieces.
- Additional heat is generated during a short period of time by a burning in the case of switching between the contact pieces arc. This additional heat can be dissipated to a part through the heat pipe.
- a heat pipe is a passive cooling device. It does not need any
- the ßaugrösse the vacuum interrupter can be kept very small at large rated current carrying capacity by providing the heat pipe.
- a compact design with high current carrying capacity is possible.
- Two or more heat pipes may be provided on a vacuum interrupter chamber.
- a heat pipe in close thermal contact with at least one of the contact pieces.
- two or more heat pipes may be provided in close thermal contact with a contact piece. It may also be two or, if present, even more contact pieces, each with one or more heat pipes in close thermal contact. It may also be a heat pipe with two or more contact pieces in close thermal contact.
- the vacuum switching chamber may have RMF and / or AM F contacts.
- the at least one heat pipe comprises a working medium for removing the heat by evaporation of the working medium in a section of the heat pipe designated as an evaporator and condensing the working medium in a section of the heat pipe designated as a condenser.
- the working fluid should be enclosed in a hermetically sealed volume that includes the evaporator and the condenser.
- the heat pipe can be designed as a thermosyphon.
- a heat pipe designed as a thermosiphon the return transport of the condensed working medium takes place (predominantly) by gravity.
- the condenser in the gravitational field
- the condenser is located higher than the evaporator, and between these must be a monotonous slope along the heat pipe.
- the heat pipe includes means for returning condensed working fluid to the evaporator by capillary forces.
- means for returning condensed working medium to the evaporator by capillary forces for example, porous materials come into question. Mesh-like structured and / or fabric-like materials are also suitable.
- such means are provided on the inner surface of the heat pipe.
- the evaporator is in close thermal contact with the first contact piece. This allows a particularly efficient cooling in the region of this contact piece. It is also possible to arrange the evaporator in less direct thermal contact with the contact piece.
- the evaporator may also be provided in close thermal contact with the contact stem.
- the thermal contact with the contact piece is generally inferior, it may be easier to make the vacuum interrupter chamber with the heat pipe.
- the contact stem is in turn connected to a contact carrier, the evaporator is also providable in the contact carrier or at least in close thermal contact with the contact carrier.
- Such a contact carrier is generally not movable, so that the heat pipe does not need to be movable.
- a movable heat pipe would be realized, for example, that, preferably between the evaporator and condenser, a flexible deformable portion of the heat pipe is provided, for example by a bellows or a hose made of elastically deformable material.
- a flexible deformable portion of the heat pipe is provided, for example by a bellows or a hose made of elastically deformable material.
- At least a part of the evaporator may be formed by a cavity in the first contact piece.
- the cavity may be formed by a blind hole.
- the heat pipe in close thermal contact with a fixed contact piece. As explained above, this allows a simplified construction of the heat pipe. In addition, the mass to be moved during a switching operation is lower.
- the capacitor has a device for heat dissipation.
- the heat dissipation device may include or may be, for example, a heat exchanger, a radiator, or a fin assembly. If cooling fins are provided, these are advantageously arranged so that they are oriented substantially vertically when the vacuum interrupter is aligned in the intended manner.
- a vacuum switching chamber is substantially rotationally symmetrical with an axis, and the vacuum interrupter chamber is generally provided for mounting with a vertically aligned axis.
- the cooling fins of the cooling fin arrangement are advantageously aligned substantially parallel to the axis.
- the heat pipe has a flange with a cutting ring and the flange is gas-tight and pressure-tight with the contact stem screwed. This allows in a simple and inexpensive way, a vacuum came mer provide with a heat pipe in retrospect.
- a vacuum interrupter chamber has an evacuated volume containing the contacts.
- the capacitor or at least a part of the capacitor and in particular a device for heat dissipation outside this volume is arranged.
- a heat pipe which has a flexibly deformable section, allows the heat pipe to be decoupled mechanically from other parts. It proves to be very advantageous to provide the flexibly deformable section between the evaporator and the condenser, whereby the evaporator is mechanically decoupled from the condenser.
- a movable heat pipe can also be realized in that the flexibly deformable section is telescopically adjustable in length.
- the evaporator may be formed by a blind hole.
- the heat dissipation device may include or may be, for example, a heat exchanger, a radiator, or a fin assembly. If cooling fins are provided, these are advantageously arranged such that they are oriented substantially vertically when the vacuum interrupter chamber is aligned in the intended manner.
- a vacuum interrupter chamber is substantially rotationally symmetrical with an axis, and the vacuum interrupter chamber is generally provided for mounting with a vertically aligned axis.
- the cooling fins of the cooling fin arrangement are advantageously aligned substantially parallel to the axis.
- a vacuum interrupter chamber has an evacuated volume containing the contacts.
- the capacitor or at least a part of the capacitor is arranged on the second contact piece and in particular a device for dissipating heat outside this volume.
- a heat pipe according to the invention can be an insulating hollow body (for example a ceramic or glass tube) have, in order to bridge a potential difference between the evaporator and the condenser, in particular when the capacitor (and in particular a cooling fin arrangement of the capacitor) is to be touched at the voltage applied to the vacuum interrupter electrical high voltage and thus to be at ground potential. If the heat pipe is to form such an electrical insulation gap, an electrically insulating working medium is also to be provided.
- the evaporator is arranged near the middle of the vacuum interrupter chamber.
- a particularly efficient cooling of the vacuum interrupter chamber is achieved.
- a switching device for example a high-power switch, high-voltage power switch, generator switch, medium-voltage switch or the like, has at least one vacuum interrupter chamber according to the invention.
- the inventive method for cooling a vacuum interrupter chamber is characterized in that a working medium is vaporized at a location called evaporator by the absorption of heat and is condensed with release of heat at a designated capacitor location and the condensed working medium is returned to the evaporator and that when cooling during the switching operation, the distance between the evaporator and the condenser is changed by a flexible deformable portion of the heat pipe.
- the absorbed and dissipated heat is essentially generated by a current flowing through the vacuum interrupter in the closed state (rated current).
- FIG. 1 shows a section through an arranged in an outer insulating vacuum interrupter chamber.
- Figure 2 is a condenser with cooling fin arrangement, cut perpendicular to the axis.
- Fig. 3 shows a capacitor with integrated cooling fin arrangement, cut parallel to the axis. 4 shows a further embodiment of a in an outer insulating vacuum interrupter chamber.
- Fig. 1 shows schematically and cut a vacuum interrupter chamber in the open state. For the invention insignificant details are not discussed and are largely not shown.
- the vacuum interrupter chamber is substantially rotationally symmetrical with an axis A and includes two contact pieces 1 1 and 12.
- the contact piece 12 is movable by means of a non-illustrated drive.
- Contact piece 1 1 is fixed.
- the contact pieces 1 1 and 1 2 are attached to contact stems 21 and 22, respectively.
- the vacuum interrupter chamber further has an insulating body 50, typically made of ceramic, which is formed as a hollow cylinder and is closed at its ends by a cover 41, 42.
- the enclosed volume 10 is evacuated.
- the movable contact stem 22 is attached to the lid 42 with the interposition of a bellows 70.
- the fixed contact stem 21 is fixed to the lid 41.
- a shield 60 prevents the insulating body 50 loses its insulating properties by vapor deposition, especially with metal vapor from an arc zone between the contact pieces 1 1, 1 2 and becomes electrically conductive.
- the contact pieces 1 1, 1 2 and the contact pins 21, 22 are advantageously made of copper, and the contact pieces 1 1, 1 2 are provided on their side facing each other with a coating 1 5 of a erosion-resistant material, such as Cu / Cr.
- a contact piece 1 1, 1 2 can also be formed in one piece with a contact stem 21, 22.
- a heat pipe 1 integrated in the vacuum interrupter chamber is provided for dissipating heat that arises in the vacuum interrupter chamber. The heat is mainly due to ohmic losses that occur when the vacuum interrupter chamber (and the contact pieces) are flowed through in the closed switching state of an electric current (rated current).
- a beam-like fixed contact carrier 31 is connected to the contact stem 21, for example by means of a thread 36, and a likewise beam-like drive contact carrier 32 is slidably connected to the contact stem 22.
- spring contact rings or multi-contact blades can be provided, for example, in recesses 35.
- Substantial parts of the vacuum interrupter chamber are disposed within an outer insulating tube 80 which serves for electrical shielding and mechanical stabilization.
- the heat pipe 1 has a volume that includes a working medium 2.
- the volume of the heat pipe 1 can be evacuated prior to filling the working medium 2, so that it contains only the working medium.
- the volume is formed by several partial volumes, which in the
- Contact piece 1 1 the contact piece 21, a flange 5 and a pipe 7 are provided.
- a arranged in the contact piece 1 1 and the contact stem 21 area of the heat pipe 1 serves as an evaporator 3: By absorbing heat of the contact piece 1 1, the first liquid working medium 2 is evaporated.
- a designated capacitor 4 Section of the heat pipe 1 is the gaseous working fluid 2 absorbed heat energy again and condensed, whereupon it is returned to the evaporator 3.
- the unilaterally closed tube 7 is preferably made of copper and, for example, welded to the flange 5, which advantageously has a socket for receiving the tube 7.
- the flange 5 is screwed, for example, with the contact stem 21 and has to ensure a gas and pressure-tight connection to a cutting ring 6, which cooperates with the contact stem 21.
- the contact stem 21 is annealed copper, which is generally the case anyway due to the manufacturing process of the vacuum interrupter chamber.
- the flange 5 is made of a harder material, preferably also of copper, for example, copper in a tough hard quality.
- the material of the contact stem 21 would be harder than that of the flange 5, in which case the cutting ring 6 would advantageously be provided on the contact stem 21.
- the tube 7 or at least its upper part serves as the condenser 4.
- a tube system of the heat pipe 1 in the condenser can also be provided there.
- a cooling fin arrangement 8 is provided on the tube 7.
- Fig. 2 shows schematically and parallel to the axis A cut such a possible cooling fin arrangement.
- the individual cooling fins can also be branched (not shown).
- Fig. 3 shows schematically and parallel to the axis A cut another possible embodiment of a capacitor 4.
- the condenser 4 has a multiplicity of elongate and / or areally extending cavities 8a. In this way, on the one hand a large surface for cooling the capacitor 4 from the outside by air (ambient air, optionally forced) realized and on the other hand, a large surface area, on which working fluid from the inside can condense.
- Fig. 4 shows schematically a further embodiment of a vacuum interrupter chamber in the open state.
- a vacuum interrupter chamber in the open state.
- Vacuum chamber in Figure 1 is shown in Figure 4, a vacuum chamber with two movable contact posts 22.
- an integrated heat pipe 1 is provided for dissipating heat, which arises in the vacuum interrupter chamber.
- movable contact stem 22 which is provided without heat pipe 1
- the volume of the heat pipe 1 is formed by a plurality of partial volumes, which are provided in the contact piece 1 2, the contact piece 22, the flexible deformable portion 90, the flange 5 and the tube 7.
- a region of the heat pipe 1 arranged in the contact piece 1 2 and the contact stem 22 serves as the evaporator 3.
- the initially liquid working medium 2 is vaporized and rises through the flexibly deformable portion 90 in a section designated as a condenser 4 of the heat pipe 1, in which the gaseous working medium 2 emits the absorbed heat energy again and condenses, whereupon it is returned to the evaporator 3.
- a heat pipe 1 may advantageously be designed so that the internal pressure in the heat pipe 1 is approximately between 900 mbar and 1 300 mbar, when the contact pieces 1 1, 12 are current-flowing. But there are also pressures of several bar possible, especially if the heat pipe 1 is substantially metallic and thus can easily withstand high pressures and remains gas-tight.
- Suitable working media 2 are, for example, water, acetone, fluorinated hydrocarbons such as "FC-72" from 3M, or hydro-fluoro ethers such as "HFE-71 00" from 3M.
- a vacuum interrupter chamber can take place in two separate steps, wherein in a first step the parts forming the volume 10 and the parts arranged in the volume 10 are joined together and advantageously also the contact carriers 31, 32 and the outer insulating tube 80 can, for example be added. In a second step, the working medium 2 can then be filled and the other parts belonging to the heat pipe 1 (flange 5, pipe 7, cooling rib arrangement 8) are added.
- An advantage of the illustrated embodiment is that the vacuum interrupter chamber can be optionally used with or without heat pipe simply by performing or omitting the second production step.
- a vacuum interrupter chamber of small size By integrating a heat pipe or a part of a heat pipe 1 in a current-carrying conductor of the vacuum interrupter chamber, a vacuum interrupter chamber of small size can be realized with high current carrying capacity.
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Manipulator (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Thermally Actuated Switches (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05812681A EP1831903B1 (de) | 2004-12-20 | 2005-12-14 | Vakuumschalter mit grosser stromtragfähigkeit |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04405786A EP1672655A1 (de) | 2004-12-20 | 2004-12-20 | Vakuumschalter mit grosser Stromtragfähigkeit |
PCT/CH2005/000748 WO2006066427A1 (de) | 2004-12-20 | 2005-12-14 | Vakuumschalter mit grosser stromtragfähigkeit |
EP05812681A EP1831903B1 (de) | 2004-12-20 | 2005-12-14 | Vakuumschalter mit grosser stromtragfähigkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1831903A1 true EP1831903A1 (de) | 2007-09-12 |
EP1831903B1 EP1831903B1 (de) | 2008-04-02 |
Family
ID=34932416
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04405786A Withdrawn EP1672655A1 (de) | 2004-12-20 | 2004-12-20 | Vakuumschalter mit grosser Stromtragfähigkeit |
EP05812681A Active EP1831903B1 (de) | 2004-12-20 | 2005-12-14 | Vakuumschalter mit grosser stromtragfähigkeit |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04405786A Withdrawn EP1672655A1 (de) | 2004-12-20 | 2004-12-20 | Vakuumschalter mit grosser Stromtragfähigkeit |
Country Status (7)
Country | Link |
---|---|
US (1) | US7471495B2 (de) |
EP (2) | EP1672655A1 (de) |
JP (1) | JP2008524814A (de) |
CN (1) | CN100570781C (de) |
AT (1) | ATE391337T1 (de) |
DE (1) | DE502005003599D1 (de) |
WO (1) | WO2006066427A1 (de) |
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EP1737009A1 (de) | 2005-06-23 | 2006-12-27 | Abb Research Ltd. | Elektrische Anlage mit einem Kühlelement und Verfahren zum Betrieb dieser Anlage |
CN101592451A (zh) * | 2008-05-29 | 2009-12-02 | 北京环能海臣科技有限公司 | 一种传热管高效放热端 |
CN101320651B (zh) * | 2008-07-11 | 2011-08-24 | 中国科学院电工研究所 | 一种热管式真空开关 |
EP2276046B1 (de) * | 2009-07-15 | 2014-09-24 | ABB Technology AG | Schaltgerät mit Temperaturausgleich |
FR2951858B1 (fr) * | 2009-10-26 | 2011-12-23 | Areva T & D Sas | Dispositif de refroidissement d'un appareil moyenne tension utilisant des caloducs isoles |
FR2951859B1 (fr) * | 2009-10-26 | 2012-12-21 | Areva T & D Sas | Procede de refroidissement par caloducs integres d'un appareil electrique moyenne tension et systeme utilisant ce procede |
EP2317616A1 (de) * | 2009-10-30 | 2011-05-04 | Eaton Industries (Netherlands) B.V. | Elektrische Installation mit Wärmeübertragungsanordnung |
CA2804380C (en) * | 2010-07-07 | 2018-01-16 | Siemens Ltd. | An electrical isolator |
US8890019B2 (en) | 2011-02-05 | 2014-11-18 | Roger Webster Faulkner | Commutating circuit breaker |
DE102011075990B4 (de) * | 2011-05-17 | 2014-10-09 | Schneider Electric Sachsenwerk Gmbh | Schaltanlage für Hoch- oder Mittelspannung |
JP2015005327A (ja) * | 2011-09-06 | 2015-01-08 | 株式会社日立製作所 | パッファ式ガス遮断器 |
US9867316B2 (en) * | 2012-03-22 | 2018-01-09 | Abb Schweiz Ag | Cooling apparatus for switchgear with heat pipe structure having integrated busbar tube |
US9906001B2 (en) * | 2012-09-06 | 2018-02-27 | Abb Schweiz Ag | Passive cooling system for switchgear with star-shaped condenser |
CN103050330A (zh) * | 2013-01-06 | 2013-04-17 | 中国科学院电工研究所 | 一种真空开关 |
US9006600B2 (en) * | 2013-06-14 | 2015-04-14 | Eaton Corporation | High current vacuum interrupter with sectional electrode and multi heat pipes |
CN103759562B (zh) * | 2014-01-18 | 2015-06-10 | 门立山 | 一种单向传热阀 |
CN106415762B (zh) * | 2014-01-24 | 2019-06-21 | Abb瑞士股份有限公司 | 用于气体绝缘开关设备的冷却装置 |
US9640350B2 (en) * | 2014-02-20 | 2017-05-02 | Cooper Technologies Company | Modular switchgear insulation system |
DE102014213100A1 (de) * | 2014-07-07 | 2016-01-07 | Siemens Aktiengesellschaft | Elektrisches Bauteil mit einem elektrisch leitenden zentralen Bauelement |
CN104051192A (zh) * | 2014-07-08 | 2014-09-17 | 宝鸡市晨光真空电器有限责任公司 | 陶瓷低压接触器 |
US9396888B1 (en) | 2015-02-02 | 2016-07-19 | Mitsubishi Electric Power Products, Inc. | Copper-aluminum electrical joint |
USD800667S1 (en) | 2015-02-20 | 2017-10-24 | Cooper Technologies Company | Modular switchgear insulation device |
DE102015208696A1 (de) | 2015-05-11 | 2016-11-17 | Siemens Aktiengesellschaft | Schaltanlagenmodul |
DE102017217166A1 (de) * | 2017-09-27 | 2019-03-28 | Siemens Aktiengesellschaft | Anordnung und Verfahren zum Dämpfen des Kontaktprellens bei Hochspannungsleistungsschaltern |
CN108648939A (zh) * | 2018-06-26 | 2018-10-12 | 江苏东源电器集团股份有限公司 | 一种高压真空断路器 |
CN109770746B (zh) * | 2018-12-27 | 2022-05-03 | 九阳股份有限公司 | 一种食品加工机 |
EP3742461B1 (de) | 2019-05-20 | 2022-02-23 | ABB Schweiz AG | Kühlvorrichtung für eine mittelspannungs- oder hochspannungsschaltanlage |
DE102019219879B4 (de) | 2019-12-17 | 2023-02-02 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von verschweißbar ausgestalteten Kupferschaltkontakten und Vakuumleistungsschalter mit solchen Kontaktstücken |
EP3944276B1 (de) * | 2020-07-20 | 2023-02-08 | ABB Schweiz AG | Trennschaltereinsatz |
EP4036947A1 (de) * | 2021-01-27 | 2022-08-03 | ABB Schweiz AG | Elektrische polteilvorrichtung |
CN114420499A (zh) * | 2022-01-20 | 2022-04-29 | 西安理工大学 | 包括热量吸收模块的真空开关触头结构 |
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JPH04190091A (ja) * | 1990-11-26 | 1992-07-08 | Mitsubishi Heavy Ind Ltd | 熱流反転機構を有するヒートパイプ |
JPH05252637A (ja) * | 1992-03-03 | 1993-09-28 | Toshiba Corp | 電線貫通部 |
JP3459468B2 (ja) * | 1994-06-24 | 2003-10-20 | 日本放送協会 | 電子機器の冷却装置 |
JPH1030892A (ja) * | 1996-07-16 | 1998-02-03 | Satomi Itou | フレキシブルヒートパイプ |
DE19902498C2 (de) * | 1999-01-22 | 2001-05-17 | Moeller Gmbh | Vakuumschaltröhre |
US6564568B1 (en) * | 2001-11-14 | 2003-05-20 | Kuei-Hsien Shen | Refrigerating compressor control circuit |
-
2004
- 2004-12-20 EP EP04405786A patent/EP1672655A1/de not_active Withdrawn
-
2005
- 2005-12-14 JP JP2007547138A patent/JP2008524814A/ja active Pending
- 2005-12-14 EP EP05812681A patent/EP1831903B1/de active Active
- 2005-12-14 AT AT05812681T patent/ATE391337T1/de not_active IP Right Cessation
- 2005-12-14 CN CNB2005800434457A patent/CN100570781C/zh active Active
- 2005-12-14 WO PCT/CH2005/000748 patent/WO2006066427A1/de active IP Right Grant
- 2005-12-14 DE DE502005003599T patent/DE502005003599D1/de active Active
-
2007
- 2007-06-18 US US11/812,316 patent/US7471495B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO2006066427A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE502005003599D1 (de) | 2008-05-15 |
EP1831903B1 (de) | 2008-04-02 |
US20080000879A1 (en) | 2008-01-03 |
US7471495B2 (en) | 2008-12-30 |
WO2006066427A1 (de) | 2006-06-29 |
CN101080792A (zh) | 2007-11-28 |
CN100570781C (zh) | 2009-12-16 |
JP2008524814A (ja) | 2008-07-10 |
EP1672655A1 (de) | 2006-06-21 |
ATE391337T1 (de) | 2008-04-15 |
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