EP3387656A1 - Dispositif haute tension - Google Patents

Dispositif haute tension

Info

Publication number
EP3387656A1
EP3387656A1 EP17700636.8A EP17700636A EP3387656A1 EP 3387656 A1 EP3387656 A1 EP 3387656A1 EP 17700636 A EP17700636 A EP 17700636A EP 3387656 A1 EP3387656 A1 EP 3387656A1
Authority
EP
European Patent Office
Prior art keywords
waveguide
volume
cooling liquid
voltage device
hollow conductor
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.)
Ceased
Application number
EP17700636.8A
Other languages
German (de)
English (en)
Inventor
Tim Schnitzler
Joachim Titze
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP3387656A1 publication Critical patent/EP3387656A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/54—Insulators or insulating bodies characterised by their form having heating or cooling devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type

Definitions

  • the invention relates to a high-voltage device having a cylindrical waveguide sealed on both sides in a gas-tight manner, an insulating body extending in a longitudinal direction around the waveguide and a cooling liquid in an inner space of the waveguide.
  • Such a high-voltage device is known from DE 10 2011 003 592 AI.
  • the known high voltage device is a high voltage feedthrough. It serves the waveguide, the description is to be found in operation at a high voltage potential relative to a wall at ground potential to isolie ⁇ ren.
  • the insulating body of the known high voltage device is adapted as a resin-impregnated winding body.
  • the winding body comprises insulating layers of an electrically insulating material, which are separated from each other by electrically conductive control inserts.
  • the wall is for example part of a high-voltage system, example ⁇ a switchgear or a transformer.
  • a cooling liquid is provided in the interior of the waveguide.
  • the cooling liquid can evaporate in the interior of the waveguide at hot locations and then condense in cool locations. In this way, the heat transfer is made possible on the principle of a heat pipe.
  • the high voltage conductor is removed at its hot spots heat, which is released again at colder places.
  • it is proposed to use about one hundred milliliters of the cooling liquid.
  • the object of the invention is to propose a high-voltage device of the type mentioned, which allows the most efficient cooling possible.
  • the object is achieved in a species-specific high-voltage device, that the cooling liquid ⁇ ness applies for the volume V that V> c * U * L, where c is a tribenkon ⁇ stante with a value of 0.1 mm, U is an inner periphery of the Waveguide in mm and L is an axial length of the waveguide in mm.
  • the inventive high-voltage device the problem is addressed, the amount or the Volu ⁇ men of the liquid adapted to the geometry of the waveguide must be fit to the most efficient cooling to it ⁇ possible.
  • the minimum volume must therefore be selected so high that a suitable amount of nascent by Ver ⁇ evaporation of the cooling liquid cooling steam is present.
  • a certain amount of cooling liquid settles in gaps, depressions and cracks within the waveguide. This part of thedeflüs ⁇ stechnik remains there permanently and is no longer available for the cooling radio ⁇ tion. This is particularly important if the waveguide has an uneven inner surface. For example, the inner surface of the hollow conductor ⁇ have longitudinally extending grooves, which provide for improved reflux of the condensed cooling liquid.
  • the volume V is at least one liter.
  • this Vo ⁇ volume of the cooling liquid for example, can be guaranteed for applications in the voltage range exceeding 100 kV that the interior space of the waveguide is saturated at the operating temperature with the cooling steam.
  • V for the volume V, V> s * c * U * L, where s is a safety factor between two and three.
  • the safety factor is intended to increase the amount of coolant additionally.
  • the volume V is dimensioned such that the cooling liquid can form a film of at least 0.1 mm, particularly preferably 0.2 mm in height over an entire inner surface of the waveguide.
  • the cooling liquid can form a film of at least 0.1 mm, particularly preferably 0.2 mm in height over an entire inner surface of the waveguide.
  • the inner ⁇ space of the waveguide is evacuated prior to filling the cooling liquid, wherein by evacuating a pressure of at most 10 _1 mbar, more preferably 10 ⁇ 2 mbar in the interior ⁇ space of the waveguide is achieved.
  • evacuating Kgs ⁇ NEN advantageous impurities of the inner space by foreign substances ⁇ be prevented or at least minimized.
  • Contami ⁇ fixing certificates can ken impaired cooling function bewir-.
  • residual air and / or any type of dust in the interior of the waveguide is an unwanted ⁇ wish contamination.
  • the amount of cooling fluid does not exceed an upper limit.
  • an upper limit Suitably applicable since ⁇ forth for the volume V that V ⁇ 0.1 * VI, more preferably V ⁇ 0.05 * VI, wherein VI is the total internal volume of the mecaniclei ⁇ ters. In this way, it is advantageously avoided that in a mounted implementation, the cooling effect is reduced by a high coolant level. Over it ⁇ from the disadvantage is avoided that due to a high amount of cooling liquid, the weight of Hochhardsvorrich ⁇ processing increases.
  • the upper limit is particularly true in an in ⁇ nen graspmesser of the inner conductor of more than 10 mm.
  • cooling liquid is preferably distilled water is used for the inventive high tensioning ⁇ drying apparatus. Conceivable, however, are other, at the assumed relevant operating temperatures evaporable liquids.
  • the figure shows a Hochschreibsvor ⁇ direction according to the invention in a schematic representation.
  • the high-voltage feedthrough 1 comprises a hollow conductor 2 made of copper, which extends through an insulating body 3.
  • the waveguide 2 is cylindrically shaped.
  • a longitudinal axis 4 defines the axis of symmetry of the cylindrical waveguide 2.
  • the insulating body 3 surrounds the waveguide 2 along the longitudinal axis 4. In the figure it can be seen that the insulating body 3 does not surround the waveguide 2 along its entire length. Rather, a lower end 5 and an upper end 6 of the waveguide 2 are led out of the insulating body 3.
  • the insulating body 3 comprises electrically conductive Steuereinla ⁇ gen 7 for capacitive field control of the insulator.
  • the control inserts 7 are separated from each other by insulating layers comprising a resin impregnated insulating material, beispielswei se paper or plastic fleece.
  • a mounting flange 8 is arranged outside the insulating body 3. The mounting flange 8 is adapted to fix the high-voltage bushing 1 to a wall of a high-voltage installation.
  • the waveguide 2 is sealed gas-tight on both sides.
  • the high-voltage feedthrough 1 has an upper closure cap 9 and a lower closure cap 10, which are welded gas-tight to the waveguide 2.
  • an inner space 11 is formed in an interior of the waveguide 2.
  • a cooling liquid is 12.
  • the high clamping ⁇ voltage bushing 1 also comprises a filling opening 13 which is formed in the upper closure cap. 9 For Ver ⁇ closing the filling opening 13, a shutter 14 is madebil ⁇ det.
  • the filling opening 13 is used to evacuate the interior space 11 until the pressure in the interior 11 terschreitet the value of 10 ⁇ 2 bar un-. Subsequently, the filling opening is to ver applies ⁇ , the cooling liquid 12 regulatehel ⁇ len in the interior. 11
  • the cooling liquid 12 has a volume V.
  • the length of the hollow pus 2 is 1600 mm in the present example approximately ⁇ exporting.
  • Theylonippo ⁇ men of the inner conductor is in this case VI ⁇ 98.5 1. Therefore, the amount of water should preferably * VI ⁇ not exceed the value 0.05 4.9. 1

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transformer Cooling (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Insulators (AREA)

Abstract

L'invention concerne un dispositif haute tension comportant un conducteur creux cylindrique fermé de manière étanche aux gaz des deux côtés, un corps isolant s'étendant dans la direction longitudinale autour du conducteur creux et un liquide réfrigérant dans un espace intérieur du conducteur creux. L'invention se caractérise en ce que V > c * U * L s'applique au volume V du liquide réfrigérant, c désignant une constante longitudinale d'une valeur de 0,1 mm, U désignant une circonférence intérieure du conducteur creux, exprimée en mm, et L désignant une longueur axiale du conducteur creux, exprimée en mm.
EP17700636.8A 2016-02-09 2017-01-10 Dispositif haute tension Ceased EP3387656A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016201907.4A DE102016201907A1 (de) 2016-02-09 2016-02-09 Hochspannungsvorrichtung
PCT/EP2017/050378 WO2017137193A1 (fr) 2016-02-09 2017-01-10 Dispositif haute tension

Publications (1)

Publication Number Publication Date
EP3387656A1 true EP3387656A1 (fr) 2018-10-17

Family

ID=57838365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17700636.8A Ceased EP3387656A1 (fr) 2016-02-09 2017-01-10 Dispositif haute tension

Country Status (4)

Country Link
EP (1) EP3387656A1 (fr)
CN (1) CN208954713U (fr)
DE (1) DE102016201907A1 (fr)
WO (1) WO2017137193A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3435493B1 (fr) 2017-07-27 2020-03-25 Siemens Aktiengesellschaft Traversée de haute tension enfichable et installation haute tension comprenant un traversée de haute tension enfichable
EP3627522A1 (fr) * 2018-09-24 2020-03-25 ABB Schweiz AG Appareillage de commutation électrique à isolation par gaz

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2350348A (en) * 1942-12-21 1944-06-06 Gen Motors Corp Heat transfer device
US3602629A (en) * 1970-01-23 1971-08-31 Westinghouse Electric Corp A high voltage-high current transformer bushing having a cast resin insulating housing and hollow central conductor containing fluid coolant
DE2757571A1 (de) * 1977-12-23 1979-07-05 Felten & Guilleaume Carlswerk Hochbelastbare stromleiteranordnung, insbesondere fuer hochspannungsdurchfuehrungen
DE102011003592A1 (de) 2011-02-03 2012-08-09 Siemens Aktiengesellschaft Hochspannungsdurchführung mit minimierten Temperaturgradienten
EP2704157A1 (fr) * 2012-12-19 2014-03-05 ABB Technology Ltd Traversée isolante électrique

Also Published As

Publication number Publication date
CN208954713U (zh) 2019-06-07
WO2017137193A1 (fr) 2017-08-17
DE102016201907A1 (de) 2017-08-10

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