EP0088934A1 - Enroulement constitué de bobines en disque à bobines simples ou doubles intercalées - Google Patents
Enroulement constitué de bobines en disque à bobines simples ou doubles intercalées Download PDFInfo
- Publication number
- EP0088934A1 EP0088934A1 EP83101958A EP83101958A EP0088934A1 EP 0088934 A1 EP0088934 A1 EP 0088934A1 EP 83101958 A EP83101958 A EP 83101958A EP 83101958 A EP83101958 A EP 83101958A EP 0088934 A1 EP0088934 A1 EP 0088934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- additional insulation
- insulation
- coils
- turns
- 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.)
- Ceased
Links
- 238000004804 winding Methods 0.000 title claims abstract description 53
- 238000009413 insulation Methods 0.000 claims abstract description 55
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 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
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/343—Preventing or reducing surge voltages; oscillations
Definitions
- the invention relates to inter-wound coils with reinforced, insulated outer surface in the entrance area, in which at least two turns on the inner and outer edge are additionally insulated from one another in such a way that one edge is angularly encompassed by this additional insulation and that the winding capacity between turns with normal insulation is higher than between turns with additional insulation.
- the field strength in the most highly stressed oil gussets between edge and neighboring turns is shifted away from the conductor by means of cladding with solid insulation, and thereby reaches the order of magnitude of the field strength at the reinforced insulated edges on the outer surface.
- the form rings used here for example with a U or L-shaped cross section, represent a relatively high outlay which is justified only for very high stresses. This also applies if the shaped rings are made by additional covering of the winding conductors with insulating paper and surround the edge conductors on all sides.
- the load on the edge insulation on the outer surface of the winding can be lower than the load from the voltage between adjacent turns, even in high-voltage windings without reinforced insulated outer surfaces.
- the additional insulation a great security against longitudinal arcing as well as against the security achieved by the normal insulation of the conductor against breakdowns between adjacent turns.
- the construction of the additional insulation from shaped rings is relatively more complex than in the case of windings with reinforced, insulated jacket surfaces.
- the invention is therefore based on the object of specifying an arrangement and design of disc coils for high-voltage windings from disc coils in transformers with and without reinforced insulation of the winding outer surfaces, in which the security of the insulation against longitudinal flashovers across several disc coils is approximately equal to the safety of the winding and the coil insulation against breakthroughs, without requiring any significant additional effort.
- this object is achieved for a disk coil winding according to the type mentioned at the outset in that the additional insulation is reduced to a spacer which is approximately rectangular in cross section, which lies radially between the turns to be additionally insulated and whose width in the axial direction is equal to the corresponding width of that covered with normal insulation Winding conductor is.
- the sum of the radial dimensions of the additional insulations per disk coil is equal to the radial thickness of the normally insulated winding conductor or an integral multiple thereof.
- the metal spacing of the radially adjacent turns produced by the additional insulation in the disk coils remote from the high-voltage input of the winding decreases in accordance with the decreasing impact loads.
- the additional insulation consists of insulating strips or cooling channel strips or a combination of these forms, a graduated insulation being produced on which the field strengths in the oil at the coil edges and between the turns are approximately the same in the event of surge voltage stresses.
- the design of the winding according to the invention is very advantageous because, by simplification, it ensures economical design and use of the additional insulation required in special cases.
- interwoven disc coils are wound from two simultaneously and spatially parallel winding conductors, the windings 1 through n of which the load current flows through in the order of the digits entered.
- Additional insulations 71 to 73 serve to avoid the critical of these pre-discharges and to improve the dielectric strength of the high-voltage winding constructed from disc coils, the radial strength of which decreases with increasing reference symbols. By arranging these additional insulations, the safety of the insulations between adjacent turns, between adjacent disc coils, and the voltage Strength harmonized and optimized between disc coils that are further apart.
- FIG. 7 shows a further exemplary embodiment with disk-shaped additional insulations 74, in which the corners facing the outer surfaces of the disk coils are also insulated by angles 75 and in which the disk-shaped additional insulations 74 simultaneously have the function of shims.
- the additional insulations 71 to 74 arranged radially between adjacent turns reduce in particular the field strength of the electric field in oil gussets formed by adjacent winding conductor edges and thereby ensure that oil is in these Use possible pre-discharges only at significantly higher voltage loads and, due to the unchanged normal insulation of the winding conductors, nevertheless enable the same to be cooled practically unchanged.
- the number of turns is increased in disk coils, which require fewer additional insulations 71 to 73 due to their distance from the high-voltage input and whose radial dimensions are smaller than in disk coils with very strong additional insulation 71 to 73.
- the effect of the invention is based on the knowledge that corresponding points, where there are prerequisites for longitudinal rollover, are not shown on any of the coils wound into one another, in particular in the exemplary embodiments according to FIGS. 1 to 5 Job.
- the winding cross section shown in FIG. 6 is a circumferential location of the arrangement according to FIG. 5, not shown, but is otherwise identical to the winding cross section shown in FIG. 5.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823209350 DE3209350A1 (de) | 1982-03-15 | 1982-03-15 | Scheibenspulenwicklung aus ineinandergewickelten einzel- oder doppelspulen |
DE3209350 | 1982-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0088934A1 true EP0088934A1 (fr) | 1983-09-21 |
Family
ID=6158279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83101958A Ceased EP0088934A1 (fr) | 1982-03-15 | 1983-02-28 | Enroulement constitué de bobines en disque à bobines simples ou doubles intercalées |
Country Status (5)
Country | Link |
---|---|
US (1) | US4486730A (fr) |
EP (1) | EP0088934A1 (fr) |
JP (1) | JPS58166709A (fr) |
KR (1) | KR840002574A (fr) |
DE (1) | DE3209350A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7719397B2 (en) * | 2006-07-27 | 2010-05-18 | Abb Technology Ag | Disc wound transformer with improved cooling and impulse voltage distribution |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL103934C (fr) * | 1900-01-01 | |||
DE1038644B (de) * | 1955-11-22 | 1958-09-11 | Bbc Brown Boveri & Cie | Anordnung zur Verhuetung von Gleitfunken-Entladungen laengs der aus Scheibenspulen aufgebauten Hochspannungswicklung eines Transformators mit konzentrischen Wicklungen |
US2862195A (en) * | 1954-07-22 | 1958-11-25 | Siemens Ag | Cylindrical windings composed of pancake coils for transformers, reactors and similar apparatus |
DE1168557B (de) * | 1961-01-16 | 1964-04-23 | Licentia Gmbh | Aus scheibenfoermigen Spulen, insbesondere aus Doppelspulen aufgebaute Wicklung fuer Transformatoren oder Drosselspulen |
US3246270A (en) * | 1962-09-10 | 1966-04-12 | Westinghouse Electric Corp | Graded insulation for interleaved windings |
DE1244945B (de) * | 1963-10-18 | 1967-07-20 | Licentia Gmbh | Aus zu Doppelspulen fortlaufend geschalteten Scheibenspulen gleicher Windungszahl, zwischen denen radiale OElkanaele liegen, aufgebaute Wicklung fuer Transformatoren undDrosselspulen |
FR1523215A (fr) * | 1967-01-31 | 1968-05-03 | Skoda Np | Enroulement pour machine électromagnétique non rotative en particulier transformateur à haute tension ainsi que machine pourvue dudit enroulement |
DE1413549A1 (de) * | 1963-09-10 | 1969-01-09 | Licentia Gmbh | Hochspannungslagenwicklung mit Inneneingang fuer Transformatoren und Drosselspulen |
US3621428A (en) * | 1970-09-24 | 1971-11-16 | Westinghouse Electric Corp | Electrical windings and method of constructing same |
US3715696A (en) * | 1972-05-22 | 1973-02-06 | Gen Electric | Disc winding with integral load current carrying rib shielding |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1069279B (fr) * | 1959-11-19 | |||
US2905911A (en) * | 1954-06-08 | 1959-09-22 | Hitachi Ltd | Static shielding of transformer windings |
GB1001512A (en) * | 1960-11-24 | 1965-08-18 | English Electric Co Ltd | Improvements in or relating to electric transformers |
US3560902A (en) * | 1967-06-14 | 1971-02-02 | Hitachi Ltd | Method of providing static shielding of transformer windings |
-
1982
- 1982-03-15 DE DE19823209350 patent/DE3209350A1/de not_active Withdrawn
- 1982-09-30 US US06/431,625 patent/US4486730A/en not_active Expired - Fee Related
- 1982-11-08 KR KR1019820005033A patent/KR840002574A/ko unknown
-
1983
- 1983-02-28 EP EP83101958A patent/EP0088934A1/fr not_active Ceased
- 1983-03-14 JP JP58042083A patent/JPS58166709A/ja active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL103934C (fr) * | 1900-01-01 | |||
US2862195A (en) * | 1954-07-22 | 1958-11-25 | Siemens Ag | Cylindrical windings composed of pancake coils for transformers, reactors and similar apparatus |
DE1038644B (de) * | 1955-11-22 | 1958-09-11 | Bbc Brown Boveri & Cie | Anordnung zur Verhuetung von Gleitfunken-Entladungen laengs der aus Scheibenspulen aufgebauten Hochspannungswicklung eines Transformators mit konzentrischen Wicklungen |
DE1168557B (de) * | 1961-01-16 | 1964-04-23 | Licentia Gmbh | Aus scheibenfoermigen Spulen, insbesondere aus Doppelspulen aufgebaute Wicklung fuer Transformatoren oder Drosselspulen |
US3246270A (en) * | 1962-09-10 | 1966-04-12 | Westinghouse Electric Corp | Graded insulation for interleaved windings |
DE1413549A1 (de) * | 1963-09-10 | 1969-01-09 | Licentia Gmbh | Hochspannungslagenwicklung mit Inneneingang fuer Transformatoren und Drosselspulen |
DE1244945B (de) * | 1963-10-18 | 1967-07-20 | Licentia Gmbh | Aus zu Doppelspulen fortlaufend geschalteten Scheibenspulen gleicher Windungszahl, zwischen denen radiale OElkanaele liegen, aufgebaute Wicklung fuer Transformatoren undDrosselspulen |
FR1523215A (fr) * | 1967-01-31 | 1968-05-03 | Skoda Np | Enroulement pour machine électromagnétique non rotative en particulier transformateur à haute tension ainsi que machine pourvue dudit enroulement |
US3621428A (en) * | 1970-09-24 | 1971-11-16 | Westinghouse Electric Corp | Electrical windings and method of constructing same |
US3715696A (en) * | 1972-05-22 | 1973-02-06 | Gen Electric | Disc winding with integral load current carrying rib shielding |
Also Published As
Publication number | Publication date |
---|---|
US4486730A (en) | 1984-12-04 |
KR840002574A (ko) | 1984-07-02 |
DE3209350A1 (de) | 1983-09-15 |
JPS58166709A (ja) | 1983-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0112482B1 (fr) | Dispositif d'enroulement pour transformateurs du type sec | |
EP1722996B1 (fr) | Pole magnetique pour vehicules a sustentation magnetique | |
EP0011590B1 (fr) | Installation haute tension blindée, entièrement isolée, à transformateurs de courant unipolaires | |
DE2930672C2 (de) | Spannungsteiler zur Messung hoher Wechselspannungen in Hochspannungsschaltanlagen | |
EP0088934A1 (fr) | Enroulement constitué de bobines en disque à bobines simples ou doubles intercalées | |
EP0058232B1 (fr) | Enroulement en disque à partir de bobines doubles ou simples enroulées les unes dans les autres | |
DE1293334B (de) | Eisenkernlose Hoechstspannungs-Nebenschlussdrossel | |
EP0167896B1 (fr) | Bobinage de bobine à plateaux pour transformateurs | |
EP2866235B1 (fr) | Transformateurs haute tension | |
DE2505085C2 (de) | Zylinderwicklung für Hochspannungstransformatoren | |
DE2934719A1 (de) | In vergussbauweise hergestellter transformator | |
DE8207226U1 (de) | Scheibenspulenwicklung aus ineinandergewickelten Einzel- oder Doppelspulen | |
EP0014418B2 (fr) | Enroulement pour un transformateur à sec refroidi par air | |
DE3636938C2 (fr) | ||
DE3105356A1 (de) | Radialgeblechter eisenkern fuer drosselspulen | |
DE2301778A1 (de) | Stufenwaehler in kaefigbauart | |
DE3326422C2 (fr) | ||
DE19608289C2 (de) | Aus Scheibenspulen bestehende Hochspannungswicklung für Transformatoren und Drosselspulen | |
DE19612931A1 (de) | Wicklungsanordnung | |
EP1282142B1 (fr) | Système d'enroulement électrique | |
AT268441B (de) | Höchstspannungsnebenschlußdrossel | |
EP0605412A1 (fr) | Procede de fabrication d'enroulements de bobines. | |
DE2653591A1 (de) | Hochleistungs-transformator fuer ultra-hochspannung | |
DE3040412C2 (de) | Wicklungsanordnung für Transformatoren | |
DE3205602A1 (de) | Hochspannungs-drahteinfuehrungsglocke |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19831007 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TRANSFORMATOREN UNION AKTIENGESELLSCHAFT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19861102 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BROSZAT, GOTTFRIED |