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DE975986C - Process for producing a breakdown-proof covering for windings - Google Patents

Process for producing a breakdown-proof covering for windings

Info

Publication number
DE975986C
DE975986C DEM10402A DEM0010402A DE975986C DE 975986 C DE975986 C DE 975986C DE M10402 A DEM10402 A DE M10402A DE M0010402 A DEM0010402 A DE M0010402A DE 975986 C DE975986 C DE 975986C
Authority
DE
Germany
Prior art keywords
resin
windings
sprayed
breakdown
zeitschrift
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.)
Expired
Application number
DEM10402A
Other languages
German (de)
Inventor
Eth Alfred Dipl-Ing Imhof
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.)
Moser Glaser and Co AG
Original Assignee
Moser Glaser and Co 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
Application filed by Moser Glaser and Co AG filed Critical Moser Glaser and Co AG
Application granted granted Critical
Publication of DE975986C publication Critical patent/DE975986C/en
Expired legal-status Critical Current

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
    • H01F27/327—Encapsulating or impregnating
    • 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
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)

Description

Verfahren zur Herstellung einer durchschlagfesten Verkleidung von Wicklungen Es ist bekannt, Wicklungen und Magnetkerne von Transformatoren durch Umkleidungen zu isolieren. Diese Umkleidungen haben den Zweck, die Durchschlagsfestigkeit gegen benachbarte spannungsführende Teile zu erhöhen. Sie bestehen meist aus Papier, das ähnlich wie bei Kabeln aufbandagiert und danach mit Öl, einer Kompoundmasse oder einer Lösung künstlicher Stoffe imprägniert wird. Die verwendeten künstlichen Stoffe werden durch Kondensation gehärtet; bei Verwendung von Niederdruck-Gießharzen werden bei der Härtung keine flüchtigen Bestandteile abgeschieden.Method of manufacturing a puncture resistant cladding of Windings It is known to make windings and magnetic cores of transformers Insulate casings. The purpose of these coatings is to provide dielectric strength to increase against neighboring live parts. They are mostly made of paper, bandaged on like cables and then with oil, a compound or a solution of artificial substances. The artificial ones used Substances are hardened by condensation; when using low-pressure casting resins no volatile constituents are deposited during curing.

Es ist auch bereits bekannt, auf die zu isolierenden Teile Papierbrei aufzuspritzen, der nach Verdunsten des Anmachmittels saugfähig erhärtet. Eine solche mit Luftblasen durchsetzte Isolierschicht ist aber keine hochwertige Isolation. Die bekannte Isolierung mit kunstharzgetränkten Bändern stößt bei der Umwicklung der Ausleitungen der Spulen auf Schwierigkeiten wegen der Doppelkrümmung.It is also already known to apply pulp to the parts to be insulated to be sprayed on, which hardens absorbent after the mixing agent has evaporated. Such However, an insulating layer interspersed with air bubbles is not a high-quality insulation. The well-known insulation with synthetic resin-soaked tapes comes into contact with the wrapping the rejection of the coils on difficulties due to the double curvature.

Die Erfindung bezweckt, die bekannten Verfahren zu verbessern.The invention aims to improve the known methods.

Die Erfindung betrifft demnach ein Verfahren zur Herstellung einer durchschlagfesten Verkleidung von Wicklungen und Magnetkernen von Hochspannungstransformatoren aus isolierenden Faserstoffen und einem härtbaren Bindemittel und besteht darin, daß unter Verwendung eines an sich bekannten Niederdruck- oder Kontaktharzes sowohl zur Bindung als auch zur Imprägnierung des in an sich bekannter Weise aufzuspritzenden Faserstoffes dieser in Form von losen Fasern zusammen mit dem Harz aufgespritzt wird, worauf das Harz gehärtet wird, so daß dieses zusammen mit den Fasern an den zu verkleidenden Teilen bei der Härtung ohne Abspaltung flüchtige Bestandteile ein blasen- und rißfreies Polymerisationsprodukt ergibt, das bei Erwärmung nicht wieder erweicht.The invention accordingly relates to a method for producing a Breakdown-proof cladding of windings and magnetic cores of high-voltage transformers made of insulating fibers and a hardenable binder and consists of that using a per se known low pressure or contact resin both to the Binding as well as for the impregnation of the to be sprayed on in a manner known per se Fibrous material of this sprayed on in the form of loose fibers together with the resin is, whereupon the resin is cured so that this together with the fibers on the parts to be clad in the hardening process without splitting off volatile constituents The polymerization product is bubble-free and crack-free and does not reappear when heated softened.

Die Umkleidung kann in bekannter Weise mit elektrisch leitenden Schichten versehen werden, sei es als Kondensatoreinlagen zur elektrischen Steuerung der Isolation, sei es als Oberflächenbeläge.The casing can be provided with electrically conductive layers in a known manner be provided, be it as capacitor inserts for electrical control of the insulation, be it as surface coverings.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer durchschlagfesten Verkleidung von Wicklungen und Magnetkernen von Hochspannungstransformatoren aus isolierenden Faserstoffen und einem härtbaren Bindemittel, dadurch gekennzeichnet, daß unter Verwendung eines an sich bekannten Niederdruck- oder Kontaktharzes sowohl zur Bindung als auch zur Imprägnierung des in an sich bekannter Weise aufzuspritzenden Faserstoffes dieser in Form von losen Fasern zusammen mit dem Harz aufgespritzt wird:, worauf das. Harz gehärtet wird, so daß dieses zuammen mit den Fasern an den zu verkleidenden. Teilen bei der Härtung ohne Abspaltung flüchtiger Bestandteile ein blasen- und rißfreies Polymerisationsprodukt ergibt, das bei Erwärmung nicht wieder erweicht. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 7q.9 5i2, :203241, 662961, 749489, 65:2644, 665834, 177667, 229084, :230539; schweizerische Patentschriften Nr. 21I 116, 236594, 2-34229, 238395, 231785 236594, 201412; französische Patentschriften Nr. 840 020, 879 042, 894 563, 859 o61, 9o7172 ; USA.-Patentschriften Nr. 2 414 525, :2340109, 2255313 2386466, 2195362, 2352974, 2437962, 2 414 525, 1213 726, 1213 144, 2 319 798, 2 26o oo5, 2404204, 2310731, 2407479, 2288313, 2116318; britische Patentschrift Nr. 500 733; Roth: Hochspannungstechnik, 1938, S. 66 bis 68; Reiss: Fortschritte der Hochfrequenztechnik, Bd. I/1941, S. 4o6 bis 411; H o n w i n k : Chemie und Technologie der Kunststoffe, 1942, S. 278 bis 286; Zeitschrift Farben, Lacke, Anstrichstoffe, 1948, S. 123/124; Zeitschrift Modern Plastics, 1945, S.221 bis 248; Bulletin des schweizerischen elektrotechnischen Vereins, 1950, S. 8 bis 11; 1952, S. 39 bis 46; Micafil-Nachrichten, 1932, Aufsatz von V acher ; Siemens-Zeitschrift, Bd. 22, 1942, Heft 2, S. 61 bis 67; Proceedings of the I. R. R., April 1945, S. 24o bis 249; Westinghouse Engineer, November 1945, S. 184 bis 186; Januar 1946, S. i i ; Mitteilungen aus dem Arbeitsgebiet der Koch und Sterzel AG, Februar 1931, S. 5. PATENT CLAIM: A process for the production of a breakdown-proof covering of windings and magnetic cores of high-voltage transformers from insulating fiber materials and a curable binding agent, characterized in that using a known low-pressure or contact resin both for binding and for impregnating the material to be sprayed on in a known manner Fibrous material this is sprayed on in the form of loose fibers together with the resin: whereupon the resin is hardened so that this together with the fibers on the to be clad. When hardening, parts of the product without splitting off volatile constituents result in a bubble-free and crack-free polymerization product that does not soften again when heated. Considered publications: German Patent Specifications No. 7q.9 5i2,: 203241, 662961, 749489, 65: 2644, 665834, 177667, 229084,: 230539; Swiss patents No. 21I 116, 236594, 2-34229, 238395, 231785 236594, 201412; French patents nos. 840 020, 879 042, 894 563, 859 061, 9o7172; U.S. Patents Nos. 2,414,525,: 2340109, 2255313, 2386466, 2195362, 2352974, 2437962, 2,414,525, 1213,726, 1213,144, 2,319,798, 2 26o oo5, 2404204, 2310731, 24 0 7479, 2288313, 2116318; British Patent No. 500,733; Roth: Hochspannungstechnik, 1938, pp. 66 to 68; Reiss: Advances in high frequency technology, Vol. I / 1941, pp. 4o6 to 411; H onwink: Chemistry and Technology of Plastics, 1942, pp. 278 to 286; Zeitschrift Farben, Lacke, Anstrichstoffe, 1948, pp. 123/124; Modern Plastics magazine, 1945, pages 221 to 248; Bulletin of the Swiss Electrotechnical Association, 1950, pp. 8 to 11; 1952, pp. 39 to 46; Micafil News, 1932, article by V acher; Siemens-Zeitschrift, Vol. 22, 1942, Issue 2, pp. 61 to 67; Proceedings of the IRR, April 1945, pp. 24o to 249; Westinghouse Engineer, Nov. 1945, pp. 184-186; January 1946, p. Ii; Messages from the field of activity of Koch and Sterzel AG, February 1931, p. 5.
DEM10402A 1946-10-26 1951-07-26 Process for producing a breakdown-proof covering for windings Expired DE975986C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH975986X 1946-10-26

Publications (1)

Publication Number Publication Date
DE975986C true DE975986C (en) 1963-01-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEM10402A Expired DE975986C (en) 1946-10-26 1951-07-26 Process for producing a breakdown-proof covering for windings

Country Status (1)

Country Link
DE (1) DE975986C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021134A1 (en) * 1979-06-15 1981-01-07 Transformatoren Union Aktiengesellschaft Winding, especially high-tension winding for dry-type transformers

Citations (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE177667C (en) *
DE230539C (en) *
DE203241A (en) *
DE229084C (en) *
US1213726A (en) * 1907-12-04 1917-01-23 Gen Bakelite Company Impregnated coil and method of making the same.
US1213144A (en) * 1907-12-04 1917-01-23 Gen Bakelite Company Organic insulating composition.
DE652644C (en) * 1932-05-10 1937-11-13 Koch & Sterzel Akt Ges Converter for high voltage
US2116318A (en) * 1935-07-31 1938-05-03 Du Pont Electrical equipment
DE662961C (en) * 1935-05-11 1938-07-26 Michel & Marchal Device for blowing shredded textile fibers and similar shredded materials
DE665834C (en) * 1929-12-14 1938-10-08 Koch & Sterzel Akt Ges Process for the production of a high-voltage coil, especially for transformers, transducers or the like.
CH201412A (en) * 1938-01-12 1938-11-30 Micafil Ag Process for filling interstices inside a solid, natural or artificial object.
GB500733A (en) * 1937-08-18 1939-02-15 Julius Veit A method for the manufacturing of insulating casings for fixed condensers and other electrical components
FR840020A (en) * 1937-12-17 1939-04-18 Transformateurs De Mesure E Wa Method for the establishment of high voltage electrical appliances
US2195362A (en) * 1936-05-21 1940-03-26 Ellis Foster Co Glycol-maleic acid resin and process of making same
CH211116A (en) * 1938-08-23 1940-08-31 Trey Ag Geb De Process for the production of a curable synthetic resin.
US2255313A (en) * 1937-08-06 1941-09-09 Ellis Foster Co Ethylenic-alpha-beta synthetic resins and process of making same
US2260005A (en) * 1940-01-20 1941-10-21 Gen Electric Interpolymerization product of allyl crotonate and unsaturated alkyd resin
US2288313A (en) * 1940-02-08 1942-06-30 Buchsbaum & Company S Article of wearing apparel, accessory, and the like
US2310731A (en) * 1939-10-31 1943-02-09 Gen Electric Interpolymers of diallyl itaconate and ethyl methacrylate
FR879042A (en) * 1940-09-14 1943-02-11 Fides Gmbh Arrangement of high voltage coils
US2319798A (en) * 1939-10-31 1943-05-25 Gen Electric Interpolymers of an unsaturated alkyd resin and a poly-(halogenoallyl) ester
US2340109A (en) * 1942-06-23 1944-01-25 Gen Electric Copolymer of divinyl benzene polymers and unsaturated alkyd resins
CH231785A (en) * 1941-09-10 1944-04-15 Licentia Gmbh Process for the production of high-voltage coils embedded in insulating polymerized materials.
US2352974A (en) * 1940-04-30 1944-07-04 Gen Electric Organosilicon compound
DE749489C (en) * 1942-03-21 1944-11-23 Process for the production of a winding of a transformer embedded in thermoplastic material
FR894563A (en) * 1942-08-29 1944-12-28 Patent Verwertungs Gmbh Hermes Non-shrink hardening filler, especially for electrical applications
CH236594A (en) * 1943-06-16 1945-02-28 Trey Aktiengesellschaft Geb De Process for producing a synthetic resin.
CH238395A (en) * 1943-03-03 1945-07-15 Bbc Brown Boveri & Cie Method for insulating windings of high voltage transformers and reactors.
US2386466A (en) * 1940-02-10 1945-10-09 Corning Glass Works Insulated conductor and insulation therefor
US2404204A (en) * 1943-01-20 1946-07-16 Gen Electric Decarboxylated half esters of hydroxylated fatty oils and alpha unsaturated polycarboxylic acids
US2407479A (en) * 1939-10-31 1946-09-10 Gen Electric Interpolymerization products
US2414525A (en) * 1944-02-25 1947-01-21 Westinghouse Electric Corp Process of applying insulation
US2437962A (en) * 1943-08-17 1948-03-16 American Cyanamid Co Copolymers of allyl esters of polybasic acid with saturated monohydric alcohol esters of unsaturated polycarboxylic acid

Patent Citations (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE177667C (en) *
DE230539C (en) *
DE203241A (en) *
DE229084C (en) *
US1213726A (en) * 1907-12-04 1917-01-23 Gen Bakelite Company Impregnated coil and method of making the same.
US1213144A (en) * 1907-12-04 1917-01-23 Gen Bakelite Company Organic insulating composition.
DE665834C (en) * 1929-12-14 1938-10-08 Koch & Sterzel Akt Ges Process for the production of a high-voltage coil, especially for transformers, transducers or the like.
DE652644C (en) * 1932-05-10 1937-11-13 Koch & Sterzel Akt Ges Converter for high voltage
DE662961C (en) * 1935-05-11 1938-07-26 Michel & Marchal Device for blowing shredded textile fibers and similar shredded materials
US2116318A (en) * 1935-07-31 1938-05-03 Du Pont Electrical equipment
US2195362A (en) * 1936-05-21 1940-03-26 Ellis Foster Co Glycol-maleic acid resin and process of making same
US2255313A (en) * 1937-08-06 1941-09-09 Ellis Foster Co Ethylenic-alpha-beta synthetic resins and process of making same
GB500733A (en) * 1937-08-18 1939-02-15 Julius Veit A method for the manufacturing of insulating casings for fixed condensers and other electrical components
FR840020A (en) * 1937-12-17 1939-04-18 Transformateurs De Mesure E Wa Method for the establishment of high voltage electrical appliances
CH201412A (en) * 1938-01-12 1938-11-30 Micafil Ag Process for filling interstices inside a solid, natural or artificial object.
DE749512C (en) * 1938-08-23 1944-11-24 Process for the production of curable synthetic resins
CH211116A (en) * 1938-08-23 1940-08-31 Trey Ag Geb De Process for the production of a curable synthetic resin.
FR859061A (en) * 1938-08-23 1940-12-10 Trey Ag Geb De Process for the preparation of synthetic resins
US2310731A (en) * 1939-10-31 1943-02-09 Gen Electric Interpolymers of diallyl itaconate and ethyl methacrylate
US2407479A (en) * 1939-10-31 1946-09-10 Gen Electric Interpolymerization products
US2319798A (en) * 1939-10-31 1943-05-25 Gen Electric Interpolymers of an unsaturated alkyd resin and a poly-(halogenoallyl) ester
US2260005A (en) * 1940-01-20 1941-10-21 Gen Electric Interpolymerization product of allyl crotonate and unsaturated alkyd resin
US2288313A (en) * 1940-02-08 1942-06-30 Buchsbaum & Company S Article of wearing apparel, accessory, and the like
US2386466A (en) * 1940-02-10 1945-10-09 Corning Glass Works Insulated conductor and insulation therefor
US2352974A (en) * 1940-04-30 1944-07-04 Gen Electric Organosilicon compound
CH234229A (en) * 1940-09-14 1944-09-15 Fides Gmbh High-voltage coils, in particular for transducers, and processes for their manufacture.
FR879042A (en) * 1940-09-14 1943-02-11 Fides Gmbh Arrangement of high voltage coils
CH231785A (en) * 1941-09-10 1944-04-15 Licentia Gmbh Process for the production of high-voltage coils embedded in insulating polymerized materials.
DE749489C (en) * 1942-03-21 1944-11-23 Process for the production of a winding of a transformer embedded in thermoplastic material
US2340109A (en) * 1942-06-23 1944-01-25 Gen Electric Copolymer of divinyl benzene polymers and unsaturated alkyd resins
FR894563A (en) * 1942-08-29 1944-12-28 Patent Verwertungs Gmbh Hermes Non-shrink hardening filler, especially for electrical applications
US2404204A (en) * 1943-01-20 1946-07-16 Gen Electric Decarboxylated half esters of hydroxylated fatty oils and alpha unsaturated polycarboxylic acids
CH238395A (en) * 1943-03-03 1945-07-15 Bbc Brown Boveri & Cie Method for insulating windings of high voltage transformers and reactors.
FR907172A (en) * 1943-06-16 1946-03-05 Trey Freres De Process for manufacturing curable synthetic resins
CH236594A (en) * 1943-06-16 1945-02-28 Trey Aktiengesellschaft Geb De Process for producing a synthetic resin.
US2437962A (en) * 1943-08-17 1948-03-16 American Cyanamid Co Copolymers of allyl esters of polybasic acid with saturated monohydric alcohol esters of unsaturated polycarboxylic acid
US2414525A (en) * 1944-02-25 1947-01-21 Westinghouse Electric Corp Process of applying insulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021134A1 (en) * 1979-06-15 1981-01-07 Transformatoren Union Aktiengesellschaft Winding, especially high-tension winding for dry-type transformers

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