EP0216249A1 - Enroulement à haute tension fait de paires de bobines en disque disposées les unes sur les autres axialement - Google Patents

Enroulement à haute tension fait de paires de bobines en disque disposées les unes sur les autres axialement Download PDF

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Publication number
EP0216249A1
EP0216249A1 EP86112505A EP86112505A EP0216249A1 EP 0216249 A1 EP0216249 A1 EP 0216249A1 EP 86112505 A EP86112505 A EP 86112505A EP 86112505 A EP86112505 A EP 86112505A EP 0216249 A1 EP0216249 A1 EP 0216249A1
Authority
EP
European Patent Office
Prior art keywords
disc
conductors
voltage
coils
coil
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
Application number
EP86112505A
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German (de)
English (en)
Other versions
EP0216249B1 (fr
Inventor
Walter Dr. Dipl.-Ing. Müller
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
Transformatoren Union AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6281723&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0216249(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Transformatoren Union AG, Siemens AG filed Critical Transformatoren Union AG
Priority to AT86112505T priority Critical patent/ATE42860T1/de
Publication of EP0216249A1 publication Critical patent/EP0216249A1/fr
Application granted granted Critical
Publication of EP0216249B1 publication Critical patent/EP0216249B1/fr
Expired legal-status Critical Current

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    • 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
    • H01F27/2871—Pancake coils

Definitions

  • the invention relates to high-voltage windings made of axially one above the other, in pairs electrically connected to disc coil pairs, disc coils each having two spatially parallel conductors, through which the same current flows through each other in the same direction by electrical series connection in each of the disc coil pairs.
  • the first conductor in the first disc coil is followed by the first conductor in the second disc coil and, via a back connection, then the second conductor in the first disc coil and finally the second conductor in the second disc coil.
  • Such a winding arrangement is known from DE-PS 975 856.
  • the conductors When the individual conductors are connected within the disc coils, the conductors require a relatively strong paper insulation because this must be applied for a voltage that is equal to the product of the winding voltage and the number of turns contained in three disc coils. With increasing loss evaluation, it becomes necessary to subdivide the conductor cross sections into partial conductors in order to reduce the eddy current losses in the stray field. At the same time, if possible, the filling factor of the winding should be increased in order to achieve a larger overall cross section and thus a reduction in I2R losses with constant external dimensions of the winding.
  • the invention is therefore based on the object of providing a high-voltage winding of the type mentioned at the outset, which, even with very large cross sections of the conductors designed for very large currents, has a longitudinal capacitance which is also sufficiently high for loading with surge voltages.
  • this object is achieved in that the spatially parallel conductors wound in each case in the same disk coil lie directly axially against one another, that each of these leaders is a bundle leader and that the order of the axially adjacent conductors defined by the coil connections on the inner and outer circumference is such that the radially adjacent conductors have only one winding voltage and axially adjacent conductors have only half the voltage of a complete coil pair as differential voltage.
  • the two spatially parallel conductors the Within a disk coil, the higher potential conductors in the disk coils of the same disk coil pair each axially on the same side and in the disk coils of adjacent disk coil pairs on axially opposite sides.
  • the individual conductors in the individual bundle conductors are not twisted and the disc coils combined to form a pair of disc coils lie directly against one another, without a cooling and insulating channel, the individual conductors of the bundle conductors being crossed out in relation to one another between the disc coils of the same pair of disc coils.
  • the individual conductors within the bundle conductors are additionally crossed out in cooling and insulating channels between adjacent pairs of disk coils.
  • each of the bundle conductors is constructed from a single stack of wires lying flat on top of one another with a rectangular cross section and that the radial dimension of the bundle conductor is greater than its axial dimension within the disc coils.
  • the maximum potential difference between axially adjacent turns both within the individual disk coils and with respect to the adjacent turns in adjacent disk coils is equal to the product of the winding voltage and the number of turns per disk coil. In many applications, it is sufficient to restrict the arrangement of the interwoven disc coil pairs to the high-voltage input region of the winding.
  • High-voltage coils constructed in accordance with the invention are very advantageous because the radial bundle dimensions can be of practically any size, so that the longitudinal capacitance determined thereby is also sufficiently large, and because the maximum voltage stress in the winding assembly is only the product of the winding tension and the number of turns in a single disk coil occurs so that radial channels are not required for electrical reasons.
  • a laminated iron core, not shown, as well as an undervoltage winding of any type, also not shown, and a high-voltage winding consisting of pairs of disc coils 1O1 to 1O6 are arranged concentrically with one another from the inside outward about an axis 100 of a transformer leg.
  • the disk coil pairs 1O1 to 1O6 represent the high-voltage input coils with turns 1 to 96, through which the load current flows in the order of the digits entered.
  • Each of the disk coil pairs 1O1 to 1O6 consists of two disk coils, each with eight turns of a conductor 1O7 in the exemplary embodiment.
  • the dimension of the conductor 1O7 is significantly larger in the radial direction than in the axial direction.
  • the conductor 1O7 is constructed as a bundle conductor from ten, preferably enamel-insulated, individual conductors 1O8, which have a rectangular cross section and lie flat on top of one another.
  • the individual conductors 1O8 are held together by a insulating skin 1O9 made of paper or another insulating material to form a bundle, the thickness of the insulating skin 1O9 being determined by the product of the winding tension and the number of turns in a disk coil.
  • Each of the disc coils is wound from two spatially parallel conductors 107 lying axially next to one another, each of which approximately forms a spiral with four turns in the exemplary embodiment, i.e. each of the disc coils consists of two identical spirals lying axially against one another, the spirals of the same disc coil having the same winding spirals and spirals of adjacent disc coils having opposite winding directions.
  • Two adjacent disc coils are connected to one of the disc coil pairs 1O1 to 1O6.
  • the spirals formed by the conductors 1O7 are electrically connected in series so that the windings flow through the current in the order of the numbers entered.
  • this series connection first causes the first spiral of the first disc coil to move from the outside in, then the first spiral of the second disc coil from the inside to the outside, and then the second spiral of the first disc coil from the outside to the inside again via a reverse connection and finally the current flows through the second spiral of the second disc coil from the inside to the outside.
  • each of the individual conductors 108 are each a disc coils in the reverse connection between the two pair of disc coils forming 1O1 to 1O6 crossed out with one another in the usual manner. If necessary, further outcrossings are provided in the connections of adjacent pairs of disc coils 1O1 to 1O6.
  • the spiral lying axially in the direction of a high-voltage connection 110 has the higher voltage potential compared to the other spiral of the same disc coil.
  • the reverse is true.
  • the situation in the disk coil pair 1O3 is again the same as in the disk coil pair 1O1.
  • there is a maximum of a voltage between two axially adjacent turns corresponding to the product of the turn voltage and the number of turns of a disk coil in the exemplary embodiment thus a maximum of eight times the turn voltage.
  • the thickness of the insulating skin 1O9 is also small.
  • the large-area, radially directed broad sides of the conductors 1O7 lie next to one another at a short distance and thus make a significant contribution to the formation of a good longitudinal capacitance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Details Of Television Scanning (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Windings For Motors And Generators (AREA)
EP86112505A 1985-09-23 1986-09-10 Enroulement à haute tension fait de paires de bobines en disque disposées les unes sur les autres axialement Expired EP0216249B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112505T ATE42860T1 (de) 1985-09-23 1986-09-10 Hochspannungswicklung aus axial uebereinander angeordneten scheibenspulenpaaren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3533919 1985-09-23
DE3533919 1985-09-23

Publications (2)

Publication Number Publication Date
EP0216249A1 true EP0216249A1 (fr) 1987-04-01
EP0216249B1 EP0216249B1 (fr) 1989-05-03

Family

ID=6281723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112505A Expired EP0216249B1 (fr) 1985-09-23 1986-09-10 Enroulement à haute tension fait de paires de bobines en disque disposées les unes sur les autres axialement

Country Status (4)

Country Link
EP (1) EP0216249B1 (fr)
AT (1) ATE42860T1 (fr)
BR (1) BR8604515A (fr)
DE (1) DE3663209D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243248A (en) * 1990-03-30 1991-10-23 Honda Motor Co Ltd Welding transformer and method of manufacturing same
US5167063A (en) * 1988-11-22 1992-12-01 Smit Transformatoren B.V. Method of making a transformer winding in the form of a disc winding provided with axial channels

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975856C (de) * 1945-01-04 1962-10-31 English Electric Co Ltd Wicklungsanordnung mit Scheibenwicklungen, insbesondere fuer Transformatoren
DE1438368A1 (de) * 1961-08-11 1969-05-29 Smit Nijmegen Electrotec Scheibenspule fuer grosse Stromstaerken fuer Transformatoren und Drosselspulen
DE2429441A1 (de) * 1974-06-19 1976-01-08 Transformatoren Union Ag Wicklung fuer transformatoren und drosseln

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975856C (de) * 1945-01-04 1962-10-31 English Electric Co Ltd Wicklungsanordnung mit Scheibenwicklungen, insbesondere fuer Transformatoren
DE1438368A1 (de) * 1961-08-11 1969-05-29 Smit Nijmegen Electrotec Scheibenspule fuer grosse Stromstaerken fuer Transformatoren und Drosselspulen
DE2429441A1 (de) * 1974-06-19 1976-01-08 Transformatoren Union Ag Wicklung fuer transformatoren und drosseln

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167063A (en) * 1988-11-22 1992-12-01 Smit Transformatoren B.V. Method of making a transformer winding in the form of a disc winding provided with axial channels
GB2243248A (en) * 1990-03-30 1991-10-23 Honda Motor Co Ltd Welding transformer and method of manufacturing same
US5160820A (en) * 1990-03-30 1992-11-03 Honda Giken Kogyo Kabushiki Kaisha Welding transformer and method of manufacturing same
GB2243248B (en) * 1990-03-30 1994-10-26 Honda Motor Co Ltd Welding transformer and method of manufacturing same

Also Published As

Publication number Publication date
ATE42860T1 (de) 1989-05-15
EP0216249B1 (fr) 1989-05-03
BR8604515A (pt) 1987-05-19
DE3663209D1 (en) 1989-06-08

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