DE1763025B2 - PROCEDURE FOR PRESSING LADDER AND INSULATION OF COILS OR ROEBEL BARS - Google Patents
PROCEDURE FOR PRESSING LADDER AND INSULATION OF COILS OR ROEBEL BARSInfo
- Publication number
- DE1763025B2 DE1763025B2 DE19661763025 DE1763025A DE1763025B2 DE 1763025 B2 DE1763025 B2 DE 1763025B2 DE 19661763025 DE19661763025 DE 19661763025 DE 1763025 A DE1763025 A DE 1763025A DE 1763025 B2 DE1763025 B2 DE 1763025B2
- Authority
- DE
- Germany
- Prior art keywords
- shrinking
- insulation
- coils
- cover layers
- solvent
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
- H01B3/50—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials fabric
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Insulating Bodies (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Pressen der Leiter und der Isolation von Spulen oder Röbelstäben mit geraden und gekrümmten Spulenteilen mittels als Decklagen um das Leiterbündel bandagierter, stark lchrumpfender Gewebe oder Folien auf der Basis von verstreckten, unfixierten, stark schrumpfenden, linearen Hochpolymeren.The invention relates to a method for pressing the conductors and the insulation of coils or rods with straight and curved coil parts by means of bandaged as cover layers around the conductor bundle, strong Shrinking fabrics or films based on stretched, unfixed, strongly shrinking, linear High polymers.
Es ist bekannt, isolierte Leiter mittels Deckiagen aus Itark schrumpfendem Gewebe oder Folien zu einem Leiterbündel zusammenzufassen. Dazu ist auch bekannt, Itark schrumpfende Gewebe oder Folien der vorgenannten Art zu verwenden, die in einem nachfolgenden thermischen Fixierprozeß die Leiter und die Isolation durch Schrumpfung pressen (DT-PS 10 15 526).It is known to make insulated conductors by means of cover layers Itark to combine shrinking fabric or foils into a conductor bundle. It is also known Itark to use shrinkable fabrics or films of the aforementioned type, which will be used in a subsequent thermal fixing process press the conductor and the insulation by shrinking (DT-PS 10 15 526).
Bei diesen bekannten Ausführungen kommt es jedoch noch relativ oft vor, daß das Bindemittel in der Isolation durch die für den thermischen Fixierprozeß zugeführte Wärme schon aushärtet, bevor der Schrumpfvorgang abgeschlossen ist, wobei in der Isolation noch einzelne Hohlräume verbleiben.In these known designs, however, it still occurs relatively often that the binder is in the insulation due to the heat supplied for the thermal fixing process already hardens before the shrinking process is completed, with individual cavities still remaining in the insulation.
Der Zweck der Erfindung besteht in der Beseitigung dieses den bekannten Verfahren noch anhaftenden Nachteils.The purpose of the invention is to eliminate this still inherent in the known processes Disadvantage.
Der Erfindung liegt die Aufgabe zugrunde, ein solches Verfahren zu entwickeln, bei dem der Fixierprozeß der als Decklagen auf der Basis von verstreckten, unfixierten, stark schrumpferden, linearen Hochpolymeren verwendeten Gewebe oder Folien bereits bei Raumtemperatur ausgelöst wird.The invention has for its object to develop such a method in which the fixing process of as cover layers based on stretched, unfixed, strongly shrinking, linear high polymers tissue or film used is triggered at room temperature.
Erfindungsgemäß wird die Aufgabe bei einem Verfahren der eingangs genannten Art dadurch gelöst, daß die Decklagen mit einem Lösungsmittel behandelt '5 werden, welches einen die Schrumpfung bewirkenden, chemischen oder thermischen und chemischen Fixierprozeß auslöst.According to the invention, the object is achieved in a method of the type mentioned at the outset by that the cover layers are treated with a solvent which causes the shrinkage, chemical or thermal and chemical fixing process triggers.
Dabei ist es zweckmäßig, als Lösungsmittel Methyienchlroid zu verwenden, zwischen der Isolation der Wicklung und der stark schrumpfenden Decklage eine lösungsmittelbeständige Folie aus Polytetrafluoräthylen anzuordnen sowie als Decklagen Faserstoffe auf der Basis von Terephthalsäurepolyesterseide aufzubringen.It is advisable to use methylene chloride as the solvent between the isolation of the Winding and the strongly shrinking top layer a solvent-resistant film made of polytetrafluoroethylene to be arranged as well as to apply fibrous materials based on terephthalic acid polyester silk as cover layers.
Weiterhin ist es vorteilhaft, zwischen den Decklagen und der zu pressenden Isolation der Spulen starre, formgebende Beilagen anzuordnen sowie Decklagen, die aus schrumpfenden Stoffen und nichtschrumpfendem Material zusammengesetzt sind, aufzubringen.Furthermore, it is advantageous to have rigid, to arrange shaping inserts as well as cover layers made of shrinking and non-shrinking materials Material are composed to apply.
Dabei können die Decklagen auch gleichzeitig als Träger von Isolierstoffen, z. B. von Glimmer mit Bindemitteln, wie Lacken oder Harzen, dienen.The cover layers can also be used as a carrier of insulating materials, e.g. B. of mica with Binders, such as paints or resins, are used.
Die Erfindung soll nachstehend an einem Ausführungsbeispiel erläutert werden.The invention will be explained below using an exemplary embodiment.
Die Spulen oder Röbelstäbe mit geraden und evolventenförmigen Teilen werden durchgehend mit einem Isolierband umwickelt, das aus einem Glasgewebeträger besteht sowie mit Aufschlußglimmer und einem abgehärteten Epoxydharz beschichtet ist. Aus der vorzusehenden elektrischen Beanspruchung bestimmt sich dabei die Anzahl der aufzubringenden Lagen.The coils or rods with straight and involute parts are continuous with wrapped in an insulating tape, which consists of a glass fabric carrier and with digestion mica and is coated with a hardened epoxy resin. Determined from the anticipated electrical stress the number of layers to be applied.
Auf diese Isolation wird zunächst eine lösungsmittelbeständige Decklage aus Polytetrafluoräthylen aufgebracht und darauf als Preßband eine Decklage aus stark schrumpfender Terephthalsäurepolyesterseide gewikkelt, welche die abschließende Einbindung ist.A solvent-resistant cover layer made of polytetrafluoroethylene is first applied to this insulation and a top layer of strongly shrinking terephthalic acid polyester silk wound onto it as a press belt, which is the final link.
Anschließend wird die Decklage aus stark schrumpfender Terephthalsäurepolyesterseide mit dem Lösungsmittel Methylenchlorid behandelt und damit der Fixierprozeß ausgelöst. Dabei ist es möglich, den ausgelösten Fixierprozeß mittels der chemischen Einwirkung allein ablaufen zu lassen, oder den chemischen Ablauf mit thermischer Einwirkung zu unterstützen. Die auf diese Art und Weise erreichte Schrumpfung ergibt ein gleichmäßiges Pressen der Leiter und der Isolation ohne Hohlräume.The top layer of strongly shrinking terephthalic acid polyester silk is then mixed with the solvent Treated methylene chloride and thus triggered the fixing process. It is possible to use the to let the triggered fixing process run by means of the chemical action alone, or the to support chemical processes with thermal effects. Which achieved in this way Shrinkage results in an even compression of the conductors and the insulation without voids.
Die Anwendung des erfindungsgemäßen VerfahrensThe application of the method according to the invention
verhindert ein vorzeitiges Aushärten der eingebrachten Bindemittel und vermeidet damit die aus den bisher bekannten Verfahren verbleibenden nachteiligen Hohlräume. prevents premature hardening of the introduced binders and thus avoids those from the previously known methods remaining disadvantageous voids.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19671763025 DE1763025C3 (en) | 1967-11-16 | Process for pressing the conductors and the insulation of coils or Röbelstäben |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19671763025 DE1763025C3 (en) | 1967-11-16 | Process for pressing the conductors and the insulation of coils or Röbelstäben |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1763025A1 DE1763025A1 (en) | 1972-01-13 |
DE1763025B2 true DE1763025B2 (en) | 1976-03-11 |
DE1763025C3 DE1763025C3 (en) | 1976-10-21 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
DE1763025A1 (en) | 1972-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3346031A1 (en) | COIL INSULATION METHOD FOR ELECTRICAL MACHINES | |
EP0603212A1 (en) | Impregnatable arrangement of a bearer and winding components. | |
DE1028217B (en) | Process for the production and installation of insulated coils for electrical machines | |
DE3114420C2 (en) | Electrical conductor with an insulating sleeve wound from mica tapes | |
DE1763025C3 (en) | Process for pressing the conductors and the insulation of coils or Röbelstäben | |
DE1763025B2 (en) | PROCEDURE FOR PRESSING LADDER AND INSULATION OF COILS OR ROEBEL BARS | |
DE1219554B (en) | Process for the production of insulation from foils or tapes with synthetic resin infusion | |
WO2007057251A1 (en) | Mica-reinforced insulation | |
DE2538702C2 (en) | Process for the production of winding insulation for electrical machines | |
DE2402149A1 (en) | Composite conductor for transformer manufacture - has heat curing binder impregnation in carrier material | |
AT230996B (en) | High-voltage-resistant winding insulation for electrical machines | |
DE1490393C (en) | Process for the production of insulation for electrical machines, devices or apparatus | |
CH403902A (en) | Process for the production of insulated electrical conductors and conductors produced by this process | |
CH299052A (en) | Insulated electrical conductor structure and process for its manufacture. | |
DE3207487A1 (en) | HIGH VOLTAGE INSULATION FOR ROTATING ELECTRICAL MACHINES | |
AT233115B (en) | Process for the production of insulated electrical conductors | |
DE2108343B2 (en) | Stranded conductor with paper insulation for transformer windings - has stiffening tape made of shrinkable material crumpled by heat from drum | |
DE1287684B (en) | ||
DE816433C (en) | Process for the production of high-voltage styrene-based bushings | |
DE1671030C3 (en) | Thermal layer insulating material | |
AT237737B (en) | Process for the production of a conductor assembly of an electrical machine consisting of mutually insulated sub-conductors and surrounded by a high-voltage-proof insulating sleeve | |
AT207486B (en) | Process for isolating electrical coils, windings, machines and apparatus for high voltage operation | |
DE1564578B1 (en) | Insulation for high-voltage coils in electrical machines | |
AT215530B (en) | Insulation for high voltage conductors | |
DE1438365C (en) | High-voltage-resistant insulation for the slot parts of coils in electrical machines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |