公开(公告)号：DE60037434D1

公开(公告)日：2008-01-24

申请号：DE60037434

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C70/70 ,  B29C33/00 ,  B29C70/86 ,  H01F41/06 ,  H01F41/12

Abstract: A method of manufacturing transformer windings embedded in casting resin is disclosed which utilizes an integrated winding mandrel for producing a non-standard oval shaped epoxy encapsulated low voltage coil for dry type distribution transformers. The method includes a process of winding a low voltage coil of alternate layers of copper conductor (24) and insulating tape (26), over a disposable mold formed by wrapping steel sheet material over inner mold support plates (14), the formed mold acting as both a winding mandrel and as an inner mold (20) for epoxy encapsulation. Both the inner and outer molds are made of low cost sheet metal utilizing a "wrap and band" process. The complete winding and molding processes can all be conducted utilizing a conventional square mandrel shaft (12) on a standard coil winding machine (10).

公开(公告)号：DE60037434T2

公开(公告)日：2008-12-04

申请号：DE60037434

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C70/70 ,  B29C33/00 ,  B29C70/86 ,  H01F41/06 ,  H01F41/12

Abstract: A method of manufacturing transformer windings embedded in casting resin is disclosed which utilizes an integrated winding mandrel for producing a non-standard oval shaped epoxy encapsulated low voltage coil for dry type distribution transformers. The method includes a process of winding a low voltage coil of alternate layers of copper conductor (24) and insulating tape (26), over a disposable mold formed by wrapping steel sheet material over inner mold support plates (14), the formed mold acting as both a winding mandrel and as an inner mold (20) for epoxy encapsulation. Both the inner and outer molds are made of low cost sheet metal utilizing a "wrap and band" process. The complete winding and molding processes can all be conducted utilizing a conventional square mandrel shaft (12) on a standard coil winding machine (10).

公开(公告)号：ES2296663T3

公开(公告)日：2008-05-01

申请号：ES00982592

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C33/00 ,  B29C33/38 ,  B29C63/08 ,  B29C63/12 ,  B29C70/70 ,  B29C70/72 ,  H01F41/06 ,  H01F41/12

Abstract: Un método de fabricar una bobina de transformador encapsulada en resina de colada utilizando un molde de colada desechable, caracterizado porque incluye los pasos de: formar un mandril anular aplicando a un eje de mandril (12) una pluralidad de chapas de soporte de forma anular (14) espaciadas en el eje, formar un molde interior desechable (20) enrollando hoja metálica (16) sobre las chapas de soporte de forma anular durante el proceso de formación del devanado, para producir una forma de devanado/mandril/molde interior integrados, para uso en el proceso de devanado, colocar la forma de devanado/mandril/molde interior integrados en una máquina de devanado, devanar una bobina (30) alrededor del molde interior mientras está en la máquina de devanado, formar un molde exterior (34) enrollando una pluralidad de capas de hoja metálica sobre la bobina acabada y unir mecánicamente las capas a la bobina acabada (30), enrollar en espiral cinta de vidrio no adhesiva (32) sobre el molde exterior para fijarlo en posición y completar el molde exterior envolviendo en cinta el molde exterior con tira de envolver (36) en una pluralidad de posiciones espaciadas, sacar el conjunto de molde y bobina fabricada de la máquina de devanado, poner vertical el conjunto de bobina y molde y unir una base (40) a él, disponer una junta estanca entre la base y el conjunto de bobina y molde para evitar que la epoxi escape durante el proceso de encapsulación, y llenar el molde con epoxi para encapsular la bobina con resina de colada.

公开(公告)号：AT293833T

公开(公告)日：2005-05-15

申请号：AT99934089

申请日：1999-07-16

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  MAREK RICHARD P

IPC: H01F5/06 ,  H01B7/02 ,  H01B13/00 ,  H01F5/00 ,  H01F27/32 ,  H01F41/06 ,  H01B7/00 ,  H01R43/00 ,  H05K3/00 ,  H01F41/12

Abstract: A method of making various insulated conductor sizes during a transformer coil winding process by slitting and bonding insulating sheet materials and foil sheet conductor into a composite foil conductor/insulation. The method includes folding the composite into a substantially U-shaped length having a central portion between two leg portions with each leg portion having a free end. The method also includes folding the leg portions of the "U" inwardly to a position substantially parallel to the central portion of the "U" to bring the free ends of the leg portions into opposing relation to provide a folded insulated foil conductor having a two-conductor thickness surrounded by insulation. Provision is also made for increasing the cross-sectional area of the conductor.

公开(公告)号：DE60037323T2

公开(公告)日：2008-11-27

申请号：DE60037323

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C33/00 ,  B29C33/38 ,  B29C63/08 ,  B29C63/12 ,  B29C70/70 ,  B29C70/72 ,  H01F41/06 ,  H01F41/12

Abstract: A method of manufacturing transformer windings embedded in casting resin is disclosed which utilizes an integrated winding mandrel for producing a non-standard oval shaped epoxy encapsulated low voltage coil for dry type distribution transformers. The method includes a process of winding a low voltage coil of alternate layers of copper conductor (24) and insulating tape (26), over a disposable mold formed by wrapping steel sheet material over inner mold support plates (14), the formed mold acting as both a winding mandrel and as an inner mold (20) for epoxy encapsulation. Both the inner and outer molds are made of low cost sheet metal utilizing a "wrap and band" process. The complete winding and molding processes can all be conducted utilizing a conventional square mandrel shaft (12) on a standard coil winding machine (10).

公开(公告)号：ES2296675T3

公开(公告)日：2008-05-01

申请号：ES00992055

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C70/70 ,  B29C33/00 ,  B29C70/86 ,  H01F41/06 ,  H01F41/12

Abstract: Un método de fabricar una bobina de transformador encapsulada en resina de vaciado (48; 48'') utilizando un molde de vaciado desechable, incluyendo los pasos de: formar un molde interior anular (12; 52) de forma predeterminada, colocar el molde interior sobre un mandril de devanado expansible de una devanadora de bobinas, devanar una bobina (30; 56) sobre el molde interior, sacar el molde interior y la bobina enrollada encima de la devanadora, insertar elementos de soporte interiores (18; 58) dentro del molde interior para mantener la forma de la bobina enrollada en el molde interior durante la encapsulación, formar un molde exterior anular (24; 54) de forma predeterminada que tiene una cúpula de molde (26), colocar el molde exterior sobre la bobina, colocar material de junta estanca (34; 34'') en los extremos de los moldes interior y exterior, colocar chapas de extremo (36; 36'') contra el material de junta estanca en los extremos de los moldes interior y exterior para formar un molde de vaciado, colocar chapas de soporte de bobina (42; 42'') en la parte superior y cada extremo de la cúpula de molde del molde exterior para soportar el peso de la bobina durante los procesos de encapsulación y curado, aplicar una fuerza de compresión predeterminada a las chapas de extremo del molde de vaciado, colocar el molde de vaciado conteniendo la bobina enrollada en una posición horizontal en una cámara rarificada y verter resina de vaciado (48; 48'') a través de un agujero en la cúpula de molde en el molde exterior del molde de vaciado para encapsular la bobina, dejar que la resina de vaciado endurezca en la bobina, y sacar la bobina encapsulada del molde de vaciado.

公开(公告)号：DE60037323D1

公开(公告)日：2008-01-17

申请号：DE60037323

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C33/00 ,  B29C33/38 ,  B29C63/08 ,  B29C63/12 ,  B29C70/70 ,  B29C70/72 ,  H01F41/06 ,  H01F41/12

Abstract: A method of manufacturing transformer windings embedded in casting resin is disclosed which utilizes an integrated winding mandrel for producing a non-standard oval shaped epoxy encapsulated low voltage coil for dry type distribution transformers. The method includes a process of winding a low voltage coil of alternate layers of copper conductor (24) and insulating tape (26), over a disposable mold formed by wrapping steel sheet material over inner mold support plates (14), the formed mold acting as both a winding mandrel and as an inner mold (20) for epoxy encapsulation. Both the inner and outer molds are made of low cost sheet metal utilizing a "wrap and band" process. The complete winding and molding processes can all be conducted utilizing a conventional square mandrel shaft (12) on a standard coil winding machine (10).

公开(公告)号：EP1218157A4

公开(公告)日：2006-06-07

申请号：EP00982592

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C33/00 ,  B29C33/38 ,  B29C63/08 ,  B29C63/12 ,  B29C70/70 ,  B29C70/72 ,  H01F41/06 ,  H01F41/12

CPC classification number: B29C70/70 ,  B29C33/0011 ,  B29L2031/3061 ,  H01F41/098 ,  H01F41/127

Abstract: A method of manufacturing transformer windings embedded in casting resin is disclosed which utilizes an integrated winding mandrel for producing a non-standard oval shaped epoxy encapsulated low voltage coil for dry type distribution transformers. The method includes a process of winding a low voltage coil of alternate layers of copper conductor (24) and insulating tape (26), over a disposable mold formed by wrapping steel sheet material over inner mold support plates (14), the formed mold acting as both a winding mandrel and as an inner mold (20) for epoxy encapsulation. Both the inner and outer molds are made of low cost sheet metal utilizing a 'wrap and band' process. The complete winding and molding processes can all be conducted utilizing a conventional square mandrel shaft (12) on a standard coil winding machine (10).

公开(公告)号：EP1216140A4

公开(公告)日：2006-06-07

申请号：EP00992055

申请日：2000-08-31

Applicant: ABB INC

Inventor： LANOUE THOMAS J ,  LAMBERT WAYNE ,  SARVER CHARLES

IPC: B29C70/70 ,  B29C33/00 ,  B29C70/86 ,  H01F41/06 ,  H01F41/12

CPC classification number: B29C70/70 ,  B29C33/0011 ,  B29L2031/3061 ,  H01F41/098 ,  H01F41/127

Abstract: A method of manufacturing a tranformer coil encapsulated in casting resin utilizing a disposable casting mold where the disposable mold acts both as a winding mandrel and as an inner mold shell (12) for resin encapsulation. The disposable casting mold may be oval shaped or circular shaped depending upon the desired shape of the coils to be encapsulated. The inner (12) and outer (24) mold shells are made from thin sheet metal and thus may be adjusted for the manufacture of a wide variety of sizes of oval shaped or circular shaped epoxy encapsulated coils. The inner mold (12) has flanges (12a) which may be secured mechanically. The ends of theinner mold support bars (18) are connected to spacer bars (20) bybolts. The outer mold (24) is of a one piece construction with an integrated dome and tap area (26). A pre-pregnated glass net (32) may be installed over the finished coil winding to provide anouter layer of glass net which may be applied radially.