Pluggable high-voltage bushing and high-voltage installation having the pluggable high-voltage bushing
A high-voltage bushing can be plugged into a bushing socket of an electrical device of a high-voltage installation. The high-voltage bushing has an internal conductor, an insulating body which at least partly encloses the internal conductor, and a plug-in section for plugging the high-voltage bushing into the bushing socket. A heat pipe is provided in the internal conductor. The heat pipe is at least partly filled with a vaporizable cooling liquid and the heat pipe extends into the plug-in section. A high-voltage installation having the high-voltage bushing is also provided.
1. A pluggable high-voltage bushing, comprising:
a plug-in section for plugging the high-voltage bushing into a bushing socket of an electrical device, said plug-in section having an external coating composed of an elastic insulating coating material;
an internal conductor extending in a longitudinal direction between a high-voltage connection and said plug-in section, said internal conductor having a heat pipe being at least partly filled with a vaporizable cooling liquid, said heat pipe extending into said plug-in section; and
an insulating body at least partly enclosing said internal conductor.
2. The high-voltage bushing according to claim 1 , which further comprises a contact system for electrical contacting of the high-voltage bushing to a connection part of the bushing socket, said heat pipe extending into a region of said contact system.
3. The high-voltage bushing according to claim 1 , wherein said insulating body includes conductive control inserts disposed concentrically around said internal conductor, and insulating layers isolate said control inserts from one another.
4. The high-voltage bushing according to claim 3 , wherein said insulating body includes a cured resin.
5. The high-voltage bushing according to claim 3 , wherein at least some of said control inserts extend into said plug-in section.
6. The high-voltage bushing according to claim 1 , wherein said vaporizable cooling liquid is deionized water.
7. The high-voltage bushing according to claim 1 , which further comprises a fastening flange for fastening the high-voltage bushing to a housing of the electrical device.
8. A high-voltage installation, comprising:
a high-voltage bushing according to claim 1 ; and
an electrical device including a bushing socket for receiving said high-voltage bushing.
9. The high-voltage installation according to claim 8 , wherein said electrical device has a housing being at least partly filled with a liquid or gaseous insulating substance, said housing being sealed in an insulating-substance-tight manner by said bushing socket.
10. A pluggable high-voltage bushing, comprising:
a plug-in section for plugging the high-voltage bushing into a bushing socket of an electrical device;
a contact system;
an internal conductor extending in a longitudinal direction between a high-voltage connection and said plug-in section, said internal conductor having a heat pipe being at least partly filled with a vaporizable cooling liquid, said heat pipe extending into said plug-in section, said internal conductor being a waveguide having first and second end sides, said waveguide being gas-tightly sealed at said first end side;
an insulating body at least partly enclosing said internal conductor; and
a connecting conductor section adjoining said second end side, said connecting conductor section being configured, in cooperation with said contact system, to produce an electrical contact between the high-voltage bushing and the bushing plug socket;
said connecting conductor section having a partial cavity being open toward said second end side, said partial cavity partly forming a cavity of said heat pipe.