EP0285895A1 - Dispositif d'isolation haute tension pour self et transformateurs, en particulier destiné à la transmission de courant continu à haute tension - Google Patents
Dispositif d'isolation haute tension pour self et transformateurs, en particulier destiné à la transmission de courant continu à haute tension Download PDFInfo
- Publication number
- EP0285895A1 EP0285895A1 EP88104507A EP88104507A EP0285895A1 EP 0285895 A1 EP0285895 A1 EP 0285895A1 EP 88104507 A EP88104507 A EP 88104507A EP 88104507 A EP88104507 A EP 88104507A EP 0285895 A1 EP0285895 A1 EP 0285895A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- pressboard
- solid
- barriers
- arrangement according
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 10
- 238000002955 isolation Methods 0.000 title 1
- 230000004888 barrier function Effects 0.000 claims abstract description 41
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 12
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract 2
- 239000007787 solid Substances 0.000 claims description 40
- 230000005684 electric field Effects 0.000 abstract 1
- 239000011343 solid material Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 8
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
Definitions
- the invention relates to a high-voltage insulation arrangement for transformers and choke coils, in particular for high-voltage direct current transmission (HVDC) with simultaneous loading by direct and alternating voltage and by surge voltages, with insulating sections consisting of successive sections alternating between solid insulating material and transformer oil.
- HVDC high-voltage direct current transmission
- the insulations are designed with regard to the loads caused by the AC voltage, and it has proven to be very advantageous that the dielectric constants of solid insulating materials to oil behave approximately as 2: 1.
- the oil used for cooling in these devices contributes significantly to the electrical insulation of the live parts.
- the invention is therefore based on the object of creating a high-voltage insulation arrangement for transformers and choke coils for high-voltage direct current transmission which can withstand simultaneous stresses from alternating, direct and surge voltage and which can nevertheless be implemented with only a small amount of manufacturing and other outlay.
- This object is achieved according to the invention for transformers and choke coils by that solid barriers for adapting the direct voltage field to the alternating voltage field are made of pressboard with increased electrical conductivity graded compared to conventional pressboard, - That the specific resistance of the press chip with the highest electrical conductivity is only about 2 to 10 times greater than that of the transformer oil, the dielectric constant is independent of the size of its specific resistance about twice as large as that of the transformer oil and - That the press chip with the highest electrical conductivity is arranged at the end of the insulating section at which the equipotential surfaces of the DC voltage field have smaller radii of curvature than at the other end.
- Advantageous embodiments of the invention consist in that some or all of the solid barriers are made of electrically conductive paper, that all solid barriers are of the same thickness and that the distances between the solid barriers from one another increase with the distance from the highest direct voltage potential.
- the solid barriers are designed as concentric cylinder jackets and, in the case of a transformer, comprise the connection point of the inner connection of a bushing with the high-voltage discharge of a winding, or the insulating material barriers are designed as angle rings and comprise the high-voltage end of a transformer winding.
- the high-voltage insulation arrangement according to the invention is very advantageous because it can be carried out with a minimum of specifically practically uniformly stressed solid barriers, because the dielectric constant of the press chip remains unchanged even with increased conductivity, so that due to the increased conductivity of the solid barriers, the direct voltage field does not, however, do so due to the dielectric constant certain alternating field is changed. Accordingly, there is an advantageous application for the insulation arrangement according to the invention wherever inhomogeneous DC voltage fields occur. This is, for example, for the edge insulation of the valve windings of HVDC transformers as well as for their rejection until implementation and the case with DC cables.
- a conductor pin 1 carries a paper roll 2 and is part of a high-voltage bushing with a porcelain body for connecting electrical devices, for example transformers, choke coils or rectifiers, to a high-voltage direct current transmission line.
- electrical devices for example transformers, choke coils or rectifiers
- the potential carried by the conductor pin 1 is capacitively reduced at least in the region of a flange for fastening the bushing on a device cover to zero or neutral point potential.
- the paper roll 2 is mechanically held together by a porcelain cap 4 concentrically enveloping it and is relieved of stress.
- the porcelain cap 4 extends to a flange carrying the bushing and separates the oil-filled space of the connected electrical device from an oil chamber 3 of the bushing.
- the conductor pin 1 carries at its lower end a clamping plate 5 to which a contact piece 7 carried by the upper end of a flexible conductor cable 6 can be screwed.
- the lower end of the conductor cable 6 is firmly connected by a further contact piece 8 to a clamping plate 9 on the free end of a winding lead 10.
- the conductor cable 6 with its contact pieces 7 and 8, clamping pieces 5 and 9 as well as the free ends of the conductor bolt 1 and the winding lead 10 are in the operating position in a goblet-shaped shield body 11, the inner surfaces of which electrically conductive layer, for example made of copper, and the outward-facing side consists of a plurality of paper layers or pressboard.
- the parts carrying high voltage potential, in particular the conductor cable 6, are galvanically connected to the electrically conductive layer on the inside of the shield body 11.
- the porcelain cap 4 and the screen body 11 are concentrically surrounded by an inner solid barrier 12 and from the inside to the outside by cylindrical jacket-shaped solid barriers 13, 14, 15, 16 and 17.
- An oil channel 18 is located between radially successive solid barriers 12 to 17.
- the clear width of oil channels 18 increases with the distance from solid barrier 12.
- Solid barrier 12 is retracted radially at the top of screen body 11 and carries a collar 19 there which includes the lower end of the solid barrier 13 outside.
- the solid barriers 12 to 17 and the oil channels 18 are surrounded on the outside by a dome wall 20 concentric to them. The only partially shown dome carries the above-mentioned high voltage bushing on its upper flange.
- the solid barriers 11, 12 to 17 consist of pressboard in the illustrated embodiment. 11, 12 and 13 pressboard with increased conductivity compared to normal pressboard is used to produce the solid barriers.
- the pressboard used in both solid barriers 11 and 12 has a specific electrical resistance that only corresponds to 2 to 10 times the value of the specific resistance of the transformer oil.
- the solid barrier 17 is made of normal pressboard, the specific resistance of which corresponds to approximately 100 times the specific resistance of the transformer oil.
- the specific resistances of the pressboard types from which the solid barriers 13, 14, 15 and 16 are made are graded so that in any case for the specific resistances of neighboring solid barriers give the same ratio.
- the dielectric constant of all types of pressboard used is the same.
- the alternating voltage field is also constructed analogously to that of conventional solid barriers.
- the direct voltage field is approximately analogous to the alternating voltage field.
- the high-voltage side due to the lowering of the specific resistance of the press chip down to the order of magnitude of the specific resistance of the transformer oil, and on the other hand, on the side of the isolating path that leads to zero potential, there is an increased field strength of the DC voltage field in the solid-state barrier 17 due to the normal press chip in the solid-state barrier 17, which is significantly higher resistance than the transformer oil avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
- Coils Of Transformers For General Uses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88104507T ATE73572T1 (de) | 1987-04-09 | 1988-03-21 | Hochspannungsisolationsanordnung fuer transformatoren und drosselspulen, insbesondere zur hochspannungs-gleichstrom-uebertragung (hgue). |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3712034 | 1987-04-09 | ||
DE3712034 | 1987-04-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0285895A1 true EP0285895A1 (fr) | 1988-10-12 |
EP0285895B1 EP0285895B1 (fr) | 1992-03-11 |
Family
ID=6325247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88104507A Expired - Lifetime EP0285895B1 (fr) | 1987-04-09 | 1988-03-21 | Dispositif d'isolation haute tension pour self et transformateurs, en particulier destiné à la transmission de courant continu à haute tension |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0285895B1 (fr) |
AT (1) | ATE73572T1 (fr) |
DE (1) | DE3868959D1 (fr) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0795877A2 (fr) * | 1996-03-14 | 1997-09-17 | Hitachi, Ltd. | Traversée à courant continu |
WO2007096299A1 (fr) * | 2006-02-21 | 2007-08-30 | Siemens Aktiengesellschaft | Système de blindage électrique |
WO2007111564A1 (fr) * | 2006-03-24 | 2007-10-04 | Abb Technology Ltd | système d'isolATION haute tension et méthode DE FABRICATION DUdit système |
WO2010060450A1 (fr) * | 2008-11-28 | 2010-06-03 | Siemens Aktiengesellschaft | Dispositif de barrières pour passage pour câbles |
WO2011113479A1 (fr) | 2010-03-16 | 2011-09-22 | Siemens Aktiengesellschaft | Système de câblage pour un transformateur haute tension |
RU2453941C2 (ru) * | 2007-08-20 | 2012-06-20 | Тебиан Электрик Аппаратус Сток Ко., Лтд | Реактор со стальным сердечником |
DE102011008456A1 (de) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Leitungsführung für HGÜ-Transformatorspulen oder HGÜ-Drosselspulen |
DE102011008459A1 (de) | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Leitungsdurchführung für die Kesselwand einer HGÜ-Komponente |
DE102011008461A1 (de) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Trennstelle einer Leitungsdurchführung für eine HGÜ-Komponente |
WO2012093053A1 (fr) | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Dispositif d'isolation pour un composant de transmission de courant continu haute tension comportant des barrières aux solides de type paroi |
WO2012093052A1 (fr) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Anneau de protection pour une bobine de transformateur de transmission de courant continu haute tension ou une bobine de réactance de transmission de courant continu haute tension |
EP2942795A1 (fr) * | 2014-05-07 | 2015-11-11 | ABB Technology Ltd | Dispositif à induction électromagnétique haute tension |
EP3934036A1 (fr) * | 2020-06-30 | 2022-01-05 | Siemens Aktiengesellschaft | Traversée haute tension et dispositif électrique haute tension pourvu d'une traversée haute tension |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2620958B1 (fr) * | 2012-01-26 | 2014-11-26 | Siemens Aktiengesellschaft | Dispositif de blindage pour un élément de liaison à conduction électrique |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE592264C (de) * | 1925-06-09 | 1934-02-03 | Felten & Guilleaume Carlswerk | Hartpapierdurchfuehrung, in der die Stellen hoeherer elektrischer Beanspruchung aus Isolierstoff von hoeherer Dielektrizitaetskonstante als der uebrige Isolierstoff bestehen |
GB659222A (en) * | 1949-05-17 | 1951-10-17 | British Thomson Houston Co Ltd | Improvements in high voltage electrical insulating bushings |
DE891713C (de) * | 1941-09-12 | 1953-10-01 | Siemens Ag | Hochspannungstransformator mit sterngeschalteter Hochspannungslagenwicklung |
DE1049971B (fr) * | 1959-02-05 | |||
DE1268720B (de) * | 1964-09-21 | 1968-05-22 | Licentia Gmbh | Schirmringanordnung fuer Wicklungen von oelgefuellten Transformatoren, Messwandlern und Drosselspulen |
DE1293328B (de) * | 1966-10-03 | 1969-04-24 | Licentia Gmbh | Mit Schilden versehene Lagenwicklung |
DE1513958A1 (de) * | 1965-09-24 | 1969-07-10 | Licentia Gmbh | Lagenwicklung mit Kondensator-Steuerbelaegen im Hauptstreukanal |
DE1816492A1 (de) * | 1968-12-23 | 1970-08-06 | Licentia Gmbh | Wicklung fuer Transformatoren,Drosselspulen u.dgl.Geraete mit hohem Gleichspannungspotential |
-
1988
- 1988-03-21 EP EP88104507A patent/EP0285895B1/fr not_active Expired - Lifetime
- 1988-03-21 DE DE8888104507T patent/DE3868959D1/de not_active Expired - Fee Related
- 1988-03-21 AT AT88104507T patent/ATE73572T1/de not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049971B (fr) * | 1959-02-05 | |||
DE592264C (de) * | 1925-06-09 | 1934-02-03 | Felten & Guilleaume Carlswerk | Hartpapierdurchfuehrung, in der die Stellen hoeherer elektrischer Beanspruchung aus Isolierstoff von hoeherer Dielektrizitaetskonstante als der uebrige Isolierstoff bestehen |
DE891713C (de) * | 1941-09-12 | 1953-10-01 | Siemens Ag | Hochspannungstransformator mit sterngeschalteter Hochspannungslagenwicklung |
GB659222A (en) * | 1949-05-17 | 1951-10-17 | British Thomson Houston Co Ltd | Improvements in high voltage electrical insulating bushings |
DE1268720B (de) * | 1964-09-21 | 1968-05-22 | Licentia Gmbh | Schirmringanordnung fuer Wicklungen von oelgefuellten Transformatoren, Messwandlern und Drosselspulen |
DE1513958A1 (de) * | 1965-09-24 | 1969-07-10 | Licentia Gmbh | Lagenwicklung mit Kondensator-Steuerbelaegen im Hauptstreukanal |
DE1293328B (de) * | 1966-10-03 | 1969-04-24 | Licentia Gmbh | Mit Schilden versehene Lagenwicklung |
DE1816492A1 (de) * | 1968-12-23 | 1970-08-06 | Licentia Gmbh | Wicklung fuer Transformatoren,Drosselspulen u.dgl.Geraete mit hohem Gleichspannungspotential |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 84 (E-239)[1521], 18. April 1984; & JP-A-59 006 505 (TOKYO SHIBAURA DENKI K.K.) 13-01-1984 * |
WISSENSCHAFTLICHE BERICHTE AEG-TELEFUNKEN, Band 43, Nr. 3?4, 17 März 1971, Seiten 192-200; H. FALKENHAGEN et al.: "Isolationsfragen bei Stromrichter-Transformatoren für die Hochspannungs-Gleichstromübertragung" * |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0795877A2 (fr) * | 1996-03-14 | 1997-09-17 | Hitachi, Ltd. | Traversée à courant continu |
EP0795877A3 (fr) * | 1996-03-14 | 1998-09-16 | Hitachi, Ltd. | Traversée à courant continu |
WO2007096299A1 (fr) * | 2006-02-21 | 2007-08-30 | Siemens Aktiengesellschaft | Système de blindage électrique |
US7927141B2 (en) | 2006-02-21 | 2011-04-19 | Siemens Aktiengesellschaft | Electrical shielding arrangement |
WO2007111564A1 (fr) * | 2006-03-24 | 2007-10-04 | Abb Technology Ltd | système d'isolATION haute tension et méthode DE FABRICATION DUdit système |
US7994427B2 (en) | 2006-03-24 | 2011-08-09 | Abb Technology Ltd. | High voltage insulation system and a method of manufacturing same |
CN101213624B (zh) * | 2006-03-24 | 2011-10-26 | Abb技术有限公司 | 高压绝缘系统及其制造方法 |
RU2453941C2 (ru) * | 2007-08-20 | 2012-06-20 | Тебиан Электрик Аппаратус Сток Ко., Лтд | Реактор со стальным сердечником |
WO2010060450A1 (fr) * | 2008-11-28 | 2010-06-03 | Siemens Aktiengesellschaft | Dispositif de barrières pour passage pour câbles |
WO2011113479A1 (fr) | 2010-03-16 | 2011-09-22 | Siemens Aktiengesellschaft | Système de câblage pour un transformateur haute tension |
WO2012093053A1 (fr) | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Dispositif d'isolation pour un composant de transmission de courant continu haute tension comportant des barrières aux solides de type paroi |
WO2012093023A3 (fr) * | 2011-01-07 | 2012-08-30 | Siemens Aktiengesellschaft | Passage de conduite pour la paroi de cuve d'un composant de transmission de courant continu haute tension |
DE102011008461A1 (de) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Trennstelle einer Leitungsdurchführung für eine HGÜ-Komponente |
WO2012093023A2 (fr) | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Passage de conduite pour la paroi de cuve d'un composant de transmission de courant continu haute tension |
DE102011008456A1 (de) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Leitungsführung für HGÜ-Transformatorspulen oder HGÜ-Drosselspulen |
WO2012093054A1 (fr) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Point de coupure d'un passage de conduite pour un composant de transmission de courant continu haute tension |
WO2012093055A1 (fr) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Guide de conduites pour des transformateurs de transmission de courant continu haute tension et des bobines de réactance de transmission de courant continu haute tension |
WO2012093052A1 (fr) * | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Anneau de protection pour une bobine de transformateur de transmission de courant continu haute tension ou une bobine de réactance de transmission de courant continu haute tension |
DE102011008454A1 (de) | 2011-01-07 | 2012-07-26 | Siemens Aktiengesellschaft | Isolationsanordnung für eine HGÜ-Komponente mit wandartigen Feststoffbarrieren |
DE102011008459A1 (de) | 2011-01-07 | 2012-07-12 | Siemens Aktiengesellschaft | Leitungsdurchführung für die Kesselwand einer HGÜ-Komponente |
CN103403818A (zh) * | 2011-01-07 | 2013-11-20 | 西门子公司 | 用于高压直流输电变压器线圈或扼流线圈的布线装置 |
CN103415971A (zh) * | 2011-01-07 | 2013-11-27 | 西门子公司 | 用于高压直流输电组件的布线装置的分离点 |
CN103415894A (zh) * | 2011-01-07 | 2013-11-27 | 西门子公司 | 带有壁状固体绝缘件的用于高压直流输电组件的绝缘装置 |
CN103415971B (zh) * | 2011-01-07 | 2017-05-24 | 西门子公司 | 用于高压直流输电组件的布线装置的分离点 |
CN103415894B (zh) * | 2011-01-07 | 2016-11-02 | 西门子公司 | 带有壁状固体绝缘件的用于高压直流输电组件的绝缘装置 |
CN103403818B (zh) * | 2011-01-07 | 2017-01-18 | 西门子公司 | 用于高压直流输电变压器线圈或扼流线圈的布线装置 |
EP2942795A1 (fr) * | 2014-05-07 | 2015-11-11 | ABB Technology Ltd | Dispositif à induction électromagnétique haute tension |
US9672969B2 (en) | 2014-05-07 | 2017-06-06 | Abb Schweiz Ag | High voltage electromagnetic induction device |
EP3934036A1 (fr) * | 2020-06-30 | 2022-01-05 | Siemens Aktiengesellschaft | Traversée haute tension et dispositif électrique haute tension pourvu d'une traversée haute tension |
Also Published As
Publication number | Publication date |
---|---|
DE3868959D1 (de) | 1992-04-16 |
ATE73572T1 (de) | 1992-03-15 |
EP0285895B1 (fr) | 1992-03-11 |
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