Pluggable high-voltage bushing and electrical device having a pluggable high-voltage bushing

Patent metadata

Field	Value
Publication number	US-11289243-B2
Application number	US-201716630505-A
Country	US
Kind code	B2
Filing date	Jul 12, 2017
Priority date	Jul 12, 2017
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A pluggable high-voltage bushing includes an inner conductor which extends in a longitudinal direction between a high-voltage terminal and a plug-in section of the high-voltage bushing. The plug-in section is configured to plug the high-voltage bushing into a device connection part of an electrical device. An insulating body surrounds the inner conductor. The insulating body includes a textile sheet-like structure. An electrical device having the high-voltage bushing is also provided.

First claim

The invention claimed is:

1. An electrical device, comprising:
a fluid-tight housing having a housing cover;
a pluggable high-voltage bushing having a high-voltage terminal; and
a device connection part for accommodation and contact-connection of said high-voltage bushing, said device connection part having an exposed end at a height of said housing cover, and said device connection part having a fixing section connecting said device connection part to said housing cover;
said high-voltage bushing including:
a plug-in section configured to plug said high-voltage bushing into said device connection part,
an inner conductor extending in a longitudinal direction between said high-voltage terminal and said plug-in section, and
an insulating body surrounding said inner conductor, said insulating body including a textile sheet-shaped structure.

2. The electrical device according to claim 1 , wherein said textile sheet-shaped structure is a non-woven fabric.

3. The electrical device according to claim 2 , wherein said insulating body includes capacitive control inserts and insulating layers separating said capacitive control inserts from one another, said insulating layers are formed of said non-woven fabric, and said control inserts are disposed concentrically around said inner conductor and extend into said plug-in section.

4. The electrical device according to claim 3 , wherein said non-woven fabric includes a synthetic polymer.

5. The electrical device according to claim 3 , wherein said control inserts are spaced apart by a radial distance of between 1 mm and 3 mm.

6. The electrical device according to claim 5 , wherein said radial distance between said control inserts has a variation of less than 0.5 mm.

7. The electrical device according to claim 5 , wherein said radial distance between said control inserts has a variation of less than 0.2 mm.

8. The electrical device according to claim 1 , wherein said insulating body includes a cured resin.

9. The electrical device according to claim 1 , wherein the high-voltage bushing extends in a longitudinal direction over a length of 6 meters to 30 meters.

10. The electrical device according to claim 1 , wherein said inner conductor has a diameter of at least 5 centimeters.

11. The electrical device according to claim 1 , wherein said plug-in section includes an outer coating of a flexible insulating coating material.

12. The electrical device according to claim 1 , which further comprises:
a hollow locating section formed of an electrically non-conductive insulating material and extending from said fastening section into said housing; and
a metallic contact part disposed at a closed and tapered end region, said metallic contact part extending through said insulating material of said locating section or prolonging said locating section in a direction of said closed and tapered end region.

13. The electrical device according to claim 12 , which further comprises a winding connection line extending within said housing, said winding connection line connecting said contact part to a winding.

14. The electrical device according to claim 13 , wherein said winding connection line is equipped with a current sensor.

15. The electrical device according to claim 1 , wherein said device connection part has a curved outer surface disposed in said fluid-tight housing.

Assignees

• Siemens Ag
• Siemens Energy Global Gmbh & Co Kg

Inventors

• Langens Achim
• Schnitzler Tim

Classifications

• H01F27/04 Primary

  Leading of conductors or axles through casings, e.g. for tap-changing arrangements · CPC title

• H01B17/28 Primary

  Capacitor type · CPC title