CH223400A - Slot winding insulation for electrical machines and apparatus. - Google Patents

Slot winding insulation for electrical machines and apparatus.

Info

Publication number
CH223400A
CH223400A CH223400DA CH223400A CH 223400 A CH223400 A CH 223400A CH 223400D A CH223400D A CH 223400DA CH 223400 A CH223400 A CH 223400A
Authority
CH
Switzerland
Prior art keywords
slot
winding insulation
electrical machines
glass
insulation
Prior art date
Application number
Other languages
German (de)
Inventor
Hermes Patentverwertun Haftung
Original Assignee
Hermes Patentverwertungs Gmbh
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 Hermes Patentverwertungs Gmbh filed Critical Hermes Patentverwertungs Gmbh
Publication of CH223400A publication Critical patent/CH223400A/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Description

  

  Nutwicklungsisolation für elektrische Maschinen und Apparate.    Es ist bekannt, die Nutschenkel der  Wicklungen von Hochspannungsmaschinen  zu     asphaltieren    oder mit     Isolierbändern    zu  umwickeln. Es wurde auch schon, vorgeschla  gen, auf den Nutschenkel zwecks Isolation  ein massives Glasrohr aufzuschieben. Da das  Glas aber nur     geringe    Wandstärke haben  ,darf und brüchig ist,     entsteht    bei :dieser Iso  lationsart viel Ausschuss. Auch besteht die  Gefahr, dass beim Transport oder während  des Betriebes das Glasrohr bricht. Auch bei  der Erfindung wird von Glas für die Isola  tion Gebrauch gemacht, jedoch werden :die  Mängel der     obengenannten        Glasisolation    ver  mieden.

    



       Erfindungsgemäss    wird um den     Nuten,-          sehenkel    eine mit     Bindemittel    versehene  Glasfolie herumgelegt. Die Glasfolie kann       unter    Zuhilfenahme eines     Trägerstoffes,    wie  Papier oder Gewebe     herumgelegt,    sie kann  auch unter Anwendung von Hitze und Druck  um den Nutenschenkel herumgebügelt wer-    den.

       Wird    Wert auf     thermische        Festigkeit     der Isolation gelegt, dann verwendet man als  Tragstoff mit Vorteil anorganisches Papier  oder     Glasgewebe        und    ein möglichst     hitze-          beständiges,    organisches Bindemittel, z. B.  Kunstharz. Statt dessen kann aber auch ein       anorganisches    Bindemittel benützt werden.  



  Die Erfindung soll an Hand des in den  Fig. 1 und 2 dargestellten Ausführungsbei  spiels näher     erläutert    werden.  



  Fig. 1 zeigt den Nutschenkel einer  Maschinenwicklung 1 mit der aufgebügelten  Isolation 2.     Diese    Isolation besteht, wie  Fig. 2 zeigt, aus einer in mehreren Windun  gen herumgelegten Papierbahn 3     mit    auf  geklebten Glasfolienschichten 4.  



  Die Erfindung bietet den     Vorteil,    dass  aus :dem     heimischen    Glas eine     hochwertige,     biegsame und sich den Nutschenkeln satt     an-          schmiegende,        mikanitähnliche    Isolation her  stellbar     ist,    die     auch        grosse        thermische     Festigkeit hat.



  Slot winding insulation for electrical machines and apparatus. It is known to asphalt the slot legs of the windings of high-voltage machines or to wrap them with insulating tape. It has also been suggested that a solid glass tube be pushed onto the groove leg for insulation. Since the glass has only a small wall thickness, is allowed to and is brittle, a lot of waste occurs with this type of insulation. There is also the risk that the glass tube will break during transport or operation. In the invention, too, use is made of glass for the insulation, but: the shortcomings of the above-mentioned glass insulation are avoided.

    



       According to the invention, a glass film provided with a binding agent is placed around the grooves. The glass film can be laid around with the aid of a carrier material such as paper or fabric, it can also be ironed around the groove leg using heat and pressure.

       If emphasis is placed on the thermal stability of the insulation, it is advantageous to use inorganic paper or glass fabric and an organic binder that is as heat-resistant as possible, e.g. B. synthetic resin. Instead, however, an inorganic binder can also be used.



  The invention will be explained in more detail with reference to the game Ausführungsbei shown in Figs.



  FIG. 1 shows the slot leg of a machine winding 1 with the ironed-on insulation 2. This insulation consists, as FIG. 2 shows, of a paper web 3 laid around in several windings with glass film layers 4 glued to it.



  The invention offers the advantage that: the domestic glass can be used to produce high-quality, flexible insulation that fits snugly to the groove legs and is similar to micanite, which also has great thermal stability.

Claims (1)

PATENTANSPRÜCH: Nutwicklungsisolation für elektrische Maschinen und Apparate, dadurch ,gekenn zeichnet, dass um den Nutenschenkel mit Bindemittel versehene Glasfolien herum gelegt sind. UNTERANSPRÜCHE: 1. Nutwicklungsisolation nach Patentan spruch, dadurch gekennzeichnet, dass die mit Bindemittel verschenen Glasfolien unter Zu- hilfenahme eines Trägerstoffes um den Nutenschenkel herumgelegt sind. 2. PATENT CLAIM: Slot winding insulation for electrical machines and apparatus, characterized in that glass films provided with binding agent are placed around the slot leg. SUBClaims: 1. Slot winding insulation according to patent claim, characterized in that the glass foils given away with binding agent are placed around the slot leg with the aid of a carrier material. 2. Nutwicklungsisolation nach Patentan spruch und Unteranspruch 1, dadurch ge kennzeichnet, dass die mit Bindemittel ver- sehenen Glasfolien um den Nutenschenkel unter Anwendung von Hitze und Druck her umgebügelt cyind. Slot winding insulation according to claim and dependent claim 1, characterized in that the glass foils provided with binding agent are ironed around the slot leg using heat and pressure.
CH223400D 1941-01-23 1942-01-20 Slot winding insulation for electrical machines and apparatus. CH223400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE223400X 1941-01-23

Publications (1)

Publication Number Publication Date
CH223400A true CH223400A (en) 1942-09-15

Family

ID=5850310

Family Applications (1)

Application Number Title Priority Date Filing Date
CH223400D CH223400A (en) 1941-01-23 1942-01-20 Slot winding insulation for electrical machines and apparatus.

Country Status (1)

Country Link
CH (1) CH223400A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019751B (en) * 1954-03-26 1957-11-21 Licentia Gmbh Groove lining for electric motors
DE1054157B (en) * 1953-12-15 1959-04-02 Licentia Gmbh Micanite insulating sleeves for turbo-generators and processes for their manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054157B (en) * 1953-12-15 1959-04-02 Licentia Gmbh Micanite insulating sleeves for turbo-generators and processes for their manufacture
DE1019751B (en) * 1954-03-26 1957-11-21 Licentia Gmbh Groove lining for electric motors

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