SE461753B - Insulation for layered coils in coils with water-filled transformers and impedance coils - Google Patents
Insulation for layered coils in coils with water-filled transformers and impedance coilsInfo
- Publication number
- SE461753B SE461753B SE8403434A SE8403434A SE461753B SE 461753 B SE461753 B SE 461753B SE 8403434 A SE8403434 A SE 8403434A SE 8403434 A SE8403434 A SE 8403434A SE 461753 B SE461753 B SE 461753B
- Authority
- SE
- Sweden
- Prior art keywords
- coils
- insulation
- insulating
- layered
- coated
- Prior art date
Links
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
- H01F27/323—Insulation between winding turns, between winding layers
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
-
- 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
- H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
- Insulated Conductors (AREA)
Description
461 755 Uppfinningen kännetecknas av att för indränkning av spolen med isolerande olja, de elektriska ledarna i de skiktade lindningarna är omlindade med isolerande band, vilka är belagda med längs bandet fördelade punkter av ett limmande harts, till bildning av ett av flera skikt bestående, vinkelrätt mot ledarnas lindningsriktning pàfört isolerande hölje. 461 755 The invention is characterized in that for soaking the coil with insulating oil, the electrical conductors in the layered windings are wrapped with insulating strips, which are coated with points distributed along the strip of a gluing resin, to form a multilayer, perpendicular against the winding direction of the conductors applied insulating casing.
Med denna isolering - enligt uppfinningen har det första gången blivit möjligt att undvika bildning av luftfyllda hâlrum i vätskekylda spolar och att säkra en god indränkning av isolationen med isolerande vätska, t.ex. transformator- eller sili- konolja. Enligt uppfinningen kan de enskilda linüfingsskikten och de angränsande ytorna på ledarna i lindningen_vara hop- limmade i radiell riktning med varandra och förstärkta medelst en mellan desamma liggande skiktad isolering. _ Enligt en utföringsform av uppfinningen'användes såsom skik- tad isolering flera över varandra skiktade, punktvis med harts be- lagda isoleringsbandu 'Såsom skiktad isolering mellan tvâ lindnings- skikt användes även punktvis med harts belagda, i flera skikt över varandra lindade isoleringsfolier, vilka hoplimmas med den harts- belagda isoleringen på ledarna i lindningen vid efterföljande upp- hettning och åstadkommer en kraftbunden fast förbindning mellan lindningsskikten i axiell riktning av spolen.With this insulation - according to the invention, it has for the first time become possible to avoid the formation of air-filled cavities in liquid-cooled coils and to ensure a good soaking of the insulation with insulating liquid, e.g. transformer or silicone oil. According to the invention, the individual line layers and the adjacent surfaces of the conductors in the winding can be glued together in radial direction with each other and reinforced by means of a layered insulation lying therebetween. According to an embodiment of the invention, several layered, point-to-point, resin-coated insulating tapes are used as layered insulation. As layered insulation between two winding layers, point-of-resin-coated, multi-layered-wound insulating foils are also used. is glued together with the resin-coated insulation on the conductors in the winding during subsequent heating and provides a force-bonded fixed connection between the winding layers in the axial direction of the coil.
Enligt ett ytterligare kännetecken på uppfinningen anordnas för âtskiljande av lindningsskikten medelst kylkanaler lister av företrädesvis i korrugerad form framställda isolerande material.According to a further feature of the invention, for separating the winding layers by means of cooling channels, strips of insulating material, preferably produced in corrugated form, are arranged.
Har för förbättring av kylningen anordnats'kylkanaler mellan tvâ lindningsskikt, inlägges för âtskiljande av dessa bägge lindnings- skikt lister av isolerande material mellan desamma. Dessa såsom distansorgan tjänande delar av isolerande material hoplimmas vid den ovan flera gånger omnämna upphettningen med den med harts be- lagda ledarisoleringen på de närliggande lindningsskikten, varige- nom en kraftbunden förbindning mellan lindningsskikten åstadkommes.To improve the cooling, cooling ducts have been arranged between two winding layers, strips of insulating material are inserted between these two winding layers to separate them. These parts of insulating material serving as spacers are glued together in the above-mentioned heating several times with the resin-coated conductor insulation on the adjacent winding layers, whereby a force-bonded connection between the winding layers is achieved.
, Isoleringen ' enligt uppfinningen ger totalt över alla lindningsskikten i spolen en fast, kraftbunden förbindning i radiell och axiell riktning, vilken förbindning motverkar de under drift eller vid kortslutningar på nätet uppträdande mekaniska på- känningarna. _ Isoleringen enligt uppfinningen möjliggör även en fullständig indränkning (impregnering) med isoleringsvätska, 461 753 3 varigenom åstadkommes att även uppträdande elektriska spänningspå- känningar säkert behärskas.The 'insulation' according to the invention provides a total, force-bonded connection in the radial and axial direction over all the winding layers in the coil, which connection counteracts the mechanical stresses which occur during operation or in the event of short circuits on the network. The insulation according to the invention also enables a complete soaking (impregnation) with insulating liquid, whereby it is ensured that even occurring electrical voltage stresses are safely controlled.
Uppfinningen beskrives närmare nedan under hänvisning till bi- fogade ritning, på vilken fig. 1 och 2 visar ledare med isolerande bana, fig". 's och 4 visar två skikt av ledare och fig; s och s visar ledarna i isoleringen enligt uppfinningen.The invention is described in more detail below with reference to the accompanying drawing, in which Figs. 1 and 2 show conductors with an insulating path, Figs. 4 and 4 show two layers of conductors and Figs. 1 and 2 show the conductors in the insulation according to the invention.
Fig. 1 visar en rund ledare 1, som är omlindad med isolerande band 2, vilka är punktvis belagda med harts 3 i É-tillstånd. Fig. 2 visar en rektangulär ledare 1, som är omlindad med isolerande band 2, Vilka är punktvis belagda med harts 3^i B-tillstànd. ~ 'Fig. 3 visar tätt invid varandra liggande, lindade runda leda- re 1, vilka är omlindade med punktvis hartsbelagda isolerande band 2, och vilka genom en efterföljande upphettning har hoplimmats med varandra. Fig. 4 visar tätt invid varandra liggande, lindade leda- re 1 med rektangulärt tvärsnitt, vilka är omlindade med punktvis hartsbelagda isolerande band 2, och vilka genom efterföljande upp- hettning har hoplimmats med varandra. ' ¿ Ä Fig. 5 visar tvâ lindningsskikt av runda ledare 1, vilka är omlindade med hartsbelagda isolerande band 2 och försedda med en mellanliggande skiktad isolering, som består av flera skikt på var- andra lindade, punktvis med harts 4 i B-tillstånd belagda isolerande folier 3. Genom efterföljande upphettning har de runda ledarna 1 i de olika lindningsskikten hoplimmats med varandra och med de iso- lerande folierna 3 i den skiktade isoleringen, varigenom en kraft- bunden förbindning har erhållits mellan de bägge lindningsskikten.Fig. 1 shows a round conductor 1, which is wrapped with insulating tape 2, which are spot-coated with resin 3 in the É state. Fig. 2 shows a rectangular conductor 1, which is wrapped with insulating tape 2, which are spot-coated with resin 3 in the B state. FIG. 3 shows closely spaced, wound round conductors 1, which are wrapped with point-based resin-coated insulating strips 2, and which have been glued together by a subsequent heating. Fig. 4 shows closely spaced, wound conductors 1 with a rectangular cross-section, which are wrapped with point-resin-coated insulating bands 2, and which have been glued together with subsequent heating. Fig. 5 shows two winding layers of round conductors 1, which are wrapped with resin-coated insulating tape 2 and provided with an intermediate layered insulation, which consists of several layers on each other wound, pointwise coated with resin 4 in B-state insulating foils 3. By subsequent heating, the round conductors 1 in the different winding layers have been glued together with each other and with the insulating foils 3 in the layered insulation, whereby a force-bonded connection has been obtained between the two winding layers.
Fig. 6 visar två lindningsskikt av rektangulära ledare 1, vilka är omlindade med hartsbelagda isolerande band 2 och försedda med en mellanliggande skiktad isolering, som består av flera skikt på var- andra lindade, punktvis med harts 4 i B-tillstånd belagda isolerande folier 3. Genom efterföljande upphettning har ledarna 1 i de en- -skilda lindningsskikten hoplimmats med varandra och med de isoleran- de folierna 3 i den skiktade isoleringen, varigenom en kraftbunden förbindning mellan de bägge lindningsskikten har âstadkommits.Fig. 6 shows two winding layers of rectangular conductors 1, which are wrapped with resin-coated insulating strips 2 and provided with an intermediate layered insulation, which consists of several layers on each other wound, point-by-point resin-coated insulating foils 3 in B-state By subsequent heating, the conductors 1 in the individual winding layers have been glued together with each other and with the insulating foils 3 in the layered insulation, whereby a force-bonded connection between the two winding layers has been established.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0236083A AT378279B (en) | 1983-06-28 | 1983-06-28 | INSULATION ARRANGEMENT FOR LAYER DEVELOPMENTS IN COILS OF LIQUID-COOLED TRANSFORMERS AND THROTTLES |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8403434D0 SE8403434D0 (en) | 1984-06-27 |
SE8403434L SE8403434L (en) | 1984-12-29 |
SE461753B true SE461753B (en) | 1990-03-19 |
Family
ID=3532907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8403434A SE461753B (en) | 1983-06-28 | 1984-06-27 | Insulation for layered coils in coils with water-filled transformers and impedance coils |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS6068609A (en) |
AT (1) | AT378279B (en) |
CH (1) | CH664844A5 (en) |
DE (1) | DE3422746A1 (en) |
SE (1) | SE461753B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3738410A1 (en) * | 1987-11-12 | 1989-05-24 | Ceag Licht & Strom | Coil for a transformer or repeating coil |
JPH0690066B2 (en) * | 1989-08-02 | 1994-11-14 | 鹿島建設株式会社 | Measuring method of concrete crown |
DE19639152C2 (en) * | 1996-09-24 | 1999-10-28 | Vem Elektroantriebe Gmbh | Tape for the production of the insulation of molded coils for high-voltage rotating electrical machines and method for producing this insulation |
DE19703161A1 (en) * | 1997-01-29 | 1998-07-30 | Abb Patent Gmbh | Winding wire e.g. for oil transformers |
DE19951709A1 (en) * | 1999-10-27 | 2001-05-03 | Alcatel Sa | Electrical conductor with a rectangular or quadratic cross section |
EP4386787A1 (en) * | 2022-12-13 | 2024-06-19 | Hitachi Energy Ltd | Winding assembly for a transformer and method for manufacturing a winding assembly for a transformer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH403068A (en) * | 1962-05-22 | 1965-11-30 | Liebknecht Transformat | Method of solidifying windings for high voltage transformers, reactors and instrument transformers |
DE1488226B2 (en) * | 1964-11-20 | 1970-03-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Frontal winding edge insulation for cylindrical windings |
DE1514231C3 (en) * | 1965-10-29 | 1974-08-22 | Messwandler-Bau Gmbh, 8600 Bamberg | High-voltage multilayer winding encased with thermoset insulating compound, especially for voltage converters |
DE2854973A1 (en) * | 1978-12-20 | 1980-07-10 | Vogt Gmbh & Co Kg | METHOD FOR PRODUCING INSULATION LAYERS ON COILS, TRANSFORMERS OR THE LIKE. |
-
1983
- 1983-06-28 AT AT0236083A patent/AT378279B/en not_active IP Right Cessation
-
1984
- 1984-06-15 CH CH2894/84A patent/CH664844A5/en not_active IP Right Cessation
- 1984-06-19 DE DE19843422746 patent/DE3422746A1/en not_active Withdrawn
- 1984-06-27 SE SE8403434A patent/SE461753B/en not_active Application Discontinuation
- 1984-06-28 JP JP59132137A patent/JPS6068609A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE3422746A1 (en) | 1985-01-03 |
AT378279B (en) | 1985-07-10 |
ATA236083A (en) | 1984-11-15 |
JPS6068609A (en) | 1985-04-19 |
SE8403434L (en) | 1984-12-29 |
CH664844A5 (en) | 1988-03-31 |
SE8403434D0 (en) | 1984-06-27 |
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NAV | Patent application has lapsed |
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