Winding unit having taps configured on the support
A winding unit for connecting to a high-voltage grid or network includes a winding embedded in a solid insulating body and a first main connection terminal connected to a first winding end of the winding and disposed on a first support formed on the insulating body. A second main connection terminal is connected to a second winding end of the winding. The winding has partial windings and taps for adjusting the number of windings of the partial windings connected in series. Outgoing lines extending in the insulating body connect the taps to a tap connection terminal accessible from the outside. The tap connection terminals are formed on the support in order to encapsulate the higher voltage in a resin block over the entire periphery by using a shielding cage.
1. A winding unit for connecting to a high-voltage grid, the winding unit comprising:
a solid insulating body;
a first support formed on said insulating body;
a second support formed on said insulating body;
each of said supports having a rotationally symmetrical configuration and being equipped with ribs;
each of said supports extending in a longitudinal direction;
a winding embedded in said solid insulating body, said winding having first and second winding ends, and said winding including partial windings having series-connected turns and taps for adjusting a number of said series-connected turns;
a first main connection terminal connected to said first winding end of said winding and disposed on said first support;
a second main connection terminal connected to said second winding end of said winding;
externally-accessible tap connection terminals disposed on said first support, said tap connection terminals each being disposed between two of said ribs and evenly-distributed over a periphery of a respective one of said supports; and
outgoing lines extending in said insulating body, said outgoing lines connecting said partial windings to said tap connection terminals.
2. The winding unit according to claim 1 , wherein said first main connection terminal is disposed at a free end of said first support.
3. The winding unit according to claim 1 , wherein said second support extends from a free end of said insulating body, said second main connection terminal being disposed at said free end of said second support.
4. The winding unit according to claim 3 , wherein said insulating body and each of said supports are formed of a cured resin.
5. The winding unit according to claim 1 , which further comprises a flexible cap attached to said first support for protecting said tap connection terminals.