Dry-type transformer
View Patent ↗A dry-type transformer includes at least one high-voltage winding and one low-voltage winding. The windings are operatively connected to one another by an electromagnetic field, and each winding is constructed from winding conductors, wherein the high-voltage winding and the low-voltage winding have a defined distance from one another, and spacers are arranged between the windings and maintain the defined distance.
1. A dry-type transformer comprising:
at least one high-voltage winding and one low-voltage winding, wherein the windings are operatively connected to one another by an electromagnetic field, and each winding is constructed from winding conductors;
wherein the high-voltage winding and the low-voltage winding have a defined distance from one another, and spacers are arranged between the windings and maintain said defined distance, and
wherein the spacers arranged between the high-voltage winding and the low-voltage winding are mechanically reinforced and connected to one another through a fiber structure.
2. The dry-type transformer of claim 1 , wherein the spacers have a cross-sectional shape and no sharp edges.
3. The dry-type transformer of claim 2 , wherein the spacers have a circular cross section.
4. The dry-type transformer of claim 2 , wherein the spacers have an oval cross section.
5. The dry-type transformer of claim 2 , wherein the spacers have a rectangular cross section.
6. The dry-type transformer of claim 5 , wherein longitudinal edges of the spacers have a radius.
7. The dry-type transformer of claim 1 , wherein the fiber structure reinforces the spacers and is formed by rovings which contain high-strength electrically non-conductive fibers.
8. The dry-type transformer of claim 1 , wherein the fiber structure is formed by a woven fabric containing high-strength electrically nonconductive fibers.
9. The dry-type transformer of claim 1 , wherein the fiber structure is formed by a mesh containing high-strength electrically nonconductive fibers.
10. The dry-type transformer of claim 1 , wherein the fiber structure is formed from glass fibers.
11. The dry-type transformer of claim 1 , wherein the fiber structure is formed from aramid fibers.
12. The dry-type transformer of claim 1 , wherein the fiber structure is formed from carbon fibers.
13. The dry-type transformer of claim 1 , wherein the fiber structure reinforces the spacers and is integrated at least partially into the spacers.
14. The dry-type transformer of claim 13 , wherein a casting compound is mixed with fibers which correspond to fibers of the fiber structure that reinforces the spacers.
15. The dry-type transformer of claim 1 , wherein the fiber structure is a molded fiber structure, that mechanically reinforces the spacers and includes high-strength, electrically non-conductive fibers.
16. The dry-type transformer of claim 1 , wherein each spacer is formed of a mold in which a fiber structure is at least partially surrounded by a casting compound to mechanically reinforce and connect the spacers to one another and anchor the fiber structure of each spacer into positions at defined distances from one another.
17. A dry-type transformer comprising:
at least one high-voltage winding and one low-voltage winding each including winding conductors, wherein the windings are operatively connected to one another by an electromagnetic field; and
spacers are arranged between the windings and at a defined distance from one another to maintain the defined distance between the windings,
wherein the spacers are molded and include a fiber structure, that mechanically reinforces the spacers and includes high-strength, electrically non-conductive fibers, and
wherein the fiber structure is at least partially surrounded by a casting compound to anchor the molded fiber structure of each spacer into positions at defined distances from one another.