DE909111C - Isolation arrangement, especially for transformer coils - Google Patents

Description

The invention relates to a lolatiötis arrangement made of paper or webs of fabric through which parts of electrical machines or apparatuses isolated from one another or from earth "-grounds. Preferably it is the insulation of the winding coils of high-voltage transformer transformers.

In these. Sometimes it is necessary. the insulation break-proof turn at a sharp angle, e.g. B. with angular ring constructions of Trarnsformatorspulen. However, the production of such isolation arrangements offers: certain difficulties. One has therefore hitherto proceeded on the one hand in such a way that the angle rings are specially produced and subsequently attached to the hard paper cylinder supporting the winding has, but joints have to be accepted, which is unfavorable in terms of voltage is. On the other hand, paper has been used, cylinder r, its over the winding end over! edges! have been torn by hand. In these cases, however also the middle piece of the insulating cylinder is made of rolled up paper layers, which is not as cheap as using a hard paper cylinder.

The invention avoids the disadvantages of the known arrangements and combines their advantages at the same time. You- consists in -that th! Ie the insulation b, il, denden and by means of a resinous binder to a solid Bodies of caked sheets of paper or fabric in the places where later the insulation is bent or the like, remain free of binders. It arise as a result, flexible points in the insulation arrangement that are break-through-proof and still allow easy assembly.

The invention is illustrated using a few exemplary embodiments with reference to the drawing after explained in more detail. In Fig. I, the winding insulation of the solenoid is one Transformer shown. The high-voltage and, the low-voltage winding s-irnd .mit i and 2 denoted. The windings are giving the core and against each other through Isol.ierstoffylinders3 and .I insulated, the two sides bent at right angles Angle rings 5, 6 run out. According to the invention now exist, if in Figure 2 of the drawing is shown in enlarged dimensions; the insulating cylinder from a middle Part that is baked together into a solid body by a resinous binder is, and from the bin! d'emi.ttel-free ends, which are bent to the angle rings are.

In Fig. 3, another embodiment is shown: ngsbeüspiel. Be here individual winding packages isolated from each other. There is intermediate isolation at the points where the pressure between the windings is absorbed must, made of solid hard paper or hard tissue Wile11 3, while the. bent edge pieces consist of blanket-free web parts 5.

In the embodiment according to Fig. D. change with an isolation arrangement fixed parts 8 with flexible parts g, while Fig. 5 is made of flexible parts shows the existing round disc, the middle of which is baked together to form a solid body and fully booked i, st.

Claims (3)

PATENT CLAIMS: i. Isolation arrangement, especially for transformer coils, made of layered paper or fabric webs, - characterized by this. that the Isolation-forming paper or fabric webs. At individual points by means of a Resin-like beef meat, especially synthetic resin, baked together to form a solid body, in other places, on the other hand, are binder-free and flexible. 2. Isolation arrangement according to claim i for the production of @vindtedringisolierte transformer windings, characterized in that the windings (1, 2) sit on insulating cylinders. : their middle parts (3, d.) using a binder to form solid bodies are baked together, while the web edges protruding over the winding free of binding agents and folded over to the angled rings (5, 6). 3. Isolation arrangement according to claim i, characterized in that by means of a binding means to solid bodies caked together and binder-free, flexible places of the paper or. Alternate webs of fabric with one another (Fig. 4).