EP3353865A1 - Feldsteuervorrichtung und hochspannungsanlage mit feldsteuervorrichtung - Google Patents
Feldsteuervorrichtung und hochspannungsanlage mit feldsteuervorrichtungInfo
- Publication number
- EP3353865A1 EP3353865A1 EP16788696.9A EP16788696A EP3353865A1 EP 3353865 A1 EP3353865 A1 EP 3353865A1 EP 16788696 A EP16788696 A EP 16788696A EP 3353865 A1 EP3353865 A1 EP 3353865A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- field control
- control device
- voltage system
- field
- heat sink
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/02—Corona rings
Definitions
- the invention relates to a field control device for a high-voltage system with a shielding element for Feldsteue ⁇ tion, which is electrically conductively connected to an electrical conductor of the high voltage system and at least partially limited when connected to the conductor an electrically weak field space.
- Field control devices of this type are known from the prior art. They are usually used to obtain a favorable distribution of an electric field in the vicinity of the electrical conductor and / or to minimize the risk of corona discharges.
- EP 2 711 939 B1 describes a field control device in the form of a control ring, which is connected to a high-voltage potential end of a control circuit
- Line arrester is arranged a high-voltage system.
- the control ring serves to equalize the voltage distribution over the length of the line arrester.
- EP 711 939 Bl shows another 2 Feldsteu ⁇ ervoriques in the form of a corona ring which is arranged on a ground-side end of the line arrester.
- Koronaring serves here for electrical shielding of sharp-edged fasteners of Kohlsableiters. In this way, by means of the known field control devices, the reliability of the high-voltage system can be increased.
- the object of the invention is to improve the artful field control device for a high-voltage system to ver ⁇ that the reliability of the high-voltage system can be further increased.
- the object is in an artful field control device by a thermally conductive with the electrical conductor
- any current-carrying component of the high-voltage system is understood in this context, any current-carrying component of the high-voltage system.
- the field control device can advantageously fulfill a further function for the high-voltage installation, namely the cooling function, with the additional heat sink with the additional heat sink.
- operationally relevant heating occur.
- These heaters can be up to several tens of Kelvin. They occur both on electrical conductors, in particular on busbars, and on connected components, for example on measuring resistors and the like. Especially in conjunction with higher ambient temperatures, this can cause significant temperatures on the components. These can, for example when it comes to precise measurement values on the measuring resistor, lead to design difficulties of the components. This ultimately reduces the reliability of the entire high-voltage system.
- the field characteristics in the environment of the field control device according to the invention do not change, because the heat sink is located in the field-weak space area.
- the electric field is at least a factor of 100 smaller than outside the field ⁇ weak room area.
- the risk of partial discharges is thus advantageously minimized.
- the additional cooling body is suitably made of a conductive material good heat, game as prepared in ⁇ of a metal. From the spatial ⁇ expansion of the weak field space region is essentially determined by the geometry of the confining it electrically conductive members, ie of the shielding member.
- a voltage of more than 1 kV As high voltage is understood in the context of the present invention, a voltage of more than 1 kV.
- the outer surface of the heat sink is to be selected as large as possible in order to make the heat transfer effective.
- ⁇ that upper surface of the heat sink and other components is understood as an outer surface which is in direct contact with the surrounding air, the high-voltage installation.
- the outer surface of the heat sink has at least two times, be advantageously ⁇ Sonders five times the outer surface of the ex ⁇ screen elements.
- the cooling body preferably has an outer surface enlarging rib structure.
- the heat sink for example, parallel plates. These may be flat or lamellar or wavy, so that the outer surface is further increased.
- the heat sink is a passive heat sink.
- the heat sink therefore does not include any components that actively act on the heat transfer, such as fans or pumps.
- the field control device is integrally formed out ⁇ . It can be made for example by extrusion or in a 3d printer. Such a field control device has particularly good mechanical stability properties.
- the field control device is two or more parts.
- the heat sink on a reflective outer surface. Due to the reflective outer surface, for example by correspond ⁇ polishing, heating of the heat sink can be minimized by sunlight. Other measures, such as waste shielding of the heat sink against the sun by Kochun ⁇ gen and the like, are also conceivable.
- the field control device further comprises at least one heat pipe element, which is thermally conductively connected to the heat sink or the shielding and thermally conductively connected to the electrical conductor.
- Heat pipe elements are known in the art. They are commercially available and ver ⁇ contact as a cooling principle, an evaporating liquid in Inne ⁇ ren one suitable for this purpose, usually elongated container.
- the heat-pipe element may be used as an additional component, or integrated into one of the existing components in ⁇ play, one of the mechanical supports, the heat sink, or even the electrical conductors themselves, be realized. In this way, the heat dissipation can be further improved.
- the shield comprises a corona ring having a shield ring and supporting elements for connecting the shield ring to the high-voltage installation ⁇ .
- Management form especially in the context of this issue is the field control device in connection with previously used components of the high-voltage installation rea ⁇ lisierbar, which allows a particularly inexpensive implementation.
- at least one support element comprises a heat pipe element.
- the support member may be insbeson ⁇ particular replaced by a suitably shaped heatpipe element.
- the invention relates to a high-voltage system having a field control device with a shielding element for field control, which is electrically conductively connected to an electrical conductor of the high-voltage system and at least partially limited when connected to the conductor an electrically weak field space.
- Object of the present invention is to propose a modern high-voltage system, which is as reliable as possible.
- the object is then ⁇ achieved in a species-specific high-voltage installation by that the field control device comprises a heat-conducting manner connected to the electrical conductor cooling body within the field-weak spatial area angeord ⁇ net and whose outer surface is greater than an outer surface of the shielding member.
- Figure 1 shows an embodiment of a field control device according to the invention in a schematic representation
- Figure 2 shows an embodiment of a high voltage system according to the invention in a schematic representation.
- the field control device 1 comprises a first shielding element 2 in the form of a corona ring and a second shielding element 3, which likewise has the shape of a corona ring.
- the first shielding element 2 is connected by struts 4, 5 with a fastening element 6 for attachment to a busbar of a high voltage system mechanically and electrically conductive.
- the first shielding element 2 is at its electrical potential when connected to the busbar.
- the second shielding element 3 in which case the struts in the representation of FIG. 1 are not visible.
- the first and second shielding members 2, 3 define a space region that is substantially free of the electric field.
- a heat sink 7 is arranged, wherein the heat sink 7 is electrically and thermally conductively connected to the busbar.
- the heat sink 7 comprises mutually parallel and interconnected ribs 8, which almost fill the field-weak space in the form of flat plates.
- FIG. 2 shows a high voltage system 10, which is a high voltage switchgear in the present ⁇ embodiment.
- the high-voltage system 10 comprises a first separator unit 11 and a second separator unit 12, which are insulated from the earth potential by means of two support insulators 13 and 14, respectively.
- the high-voltage system 10 further comprises a Feld horrvor ⁇ direction 15, which includes two corona rings 15a and 15b.
- the Both corona rings 15a and 15b define a field-weak spatial region in which an additional heat sink 16 is arranged.
- the heat sink 16 is provided with cooling fins such that its outer surface is greatly enlarged from the outer surface of the corona rings 15a, 15b. This allows improved heat dissipation of a heat generated during operation of the high-voltage system 10.
- the heat sink 16 is shown only schematically in FIG. Its structure can, for example, the structure of
- Heatsink 7 of the field control device 1 of Figure 1 correspond.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015223947.0A DE102015223947A1 (de) | 2015-12-01 | 2015-12-01 | Feldsteuervorrichtung und Hochspannungsanlage mit Feldsteuervorrichtung |
| PCT/EP2016/076277 WO2017092942A1 (de) | 2015-12-01 | 2016-11-01 | Feldsteuervorrichtung und hochspannungsanlage mit feldsteuervorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3353865A1 true EP3353865A1 (de) | 2018-08-01 |
Family
ID=57218900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16788696.9A Withdrawn EP3353865A1 (de) | 2015-12-01 | 2016-11-01 | Feldsteuervorrichtung und hochspannungsanlage mit feldsteuervorrichtung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10163546B2 (de) |
| EP (1) | EP3353865A1 (de) |
| CN (1) | CN208955412U (de) |
| DE (1) | DE102015223947A1 (de) |
| WO (1) | WO2017092942A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922820B (zh) * | 2018-09-29 | 2023-07-21 | 湖南长高高压开关有限公司 | 特高压隔离开关用大型悬挂开孔分体式屏蔽罩及扣合方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE905156C (de) | 1943-11-20 | 1954-02-25 | Siemens Ag | Lichtbogenschutzarmatur |
| DE1465293B2 (de) * | 1964-05-27 | 1970-01-08 | Pa. Richard Bergner, 8540 Schwabach | Lichtbogenschutzarmatur für Isolatoren von Hochspannungsfreileitungen |
| JPH11113245A (ja) | 1997-09-29 | 1999-04-23 | Nitto Denko Corp | サイリスタバルブモジュ−ル及びそのモジュ−ルに使用する絶縁ボルト |
| EP2154700A1 (de) * | 2008-08-14 | 2010-02-17 | ABB Technology AG | Hochspannungsisolator mit Feldsteuerelement |
| ATE536621T1 (de) * | 2009-05-25 | 2011-12-15 | Abb Technology Ag | Stromleiter für eine hochstromdurchführung |
| FR2951858B1 (fr) * | 2009-10-26 | 2011-12-23 | Areva T & D Sas | Dispositif de refroidissement d'un appareil moyenne tension utilisant des caloducs isoles |
| US8901790B2 (en) * | 2012-01-03 | 2014-12-02 | General Electric Company | Cooling of stator core flange |
| EP2711939B1 (de) | 2012-09-21 | 2014-12-31 | Siemens Aktiengesellschaft | Leitungsableiter |
-
2015
- 2015-12-01 DE DE102015223947.0A patent/DE102015223947A1/de not_active Withdrawn
-
2016
- 2016-11-01 CN CN201690001406.4U patent/CN208955412U/zh not_active Expired - Fee Related
- 2016-11-01 US US15/780,970 patent/US10163546B2/en active Active
- 2016-11-01 EP EP16788696.9A patent/EP3353865A1/de not_active Withdrawn
- 2016-11-01 WO PCT/EP2016/076277 patent/WO2017092942A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015223947A1 (de) | 2017-06-01 |
| US20180268963A1 (en) | 2018-09-20 |
| US10163546B2 (en) | 2018-12-25 |
| CN208955412U (zh) | 2019-06-07 |
| WO2017092942A1 (de) | 2017-06-08 |
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