Conductor assembly

Patent metadata

Field	Value
Publication number	US-12451276-B2
Application number	US-202118248265-A
Country	US
Kind code	B2
Filing date	Sep 13, 2021
Priority date	Oct 7, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A conductor assembly includes an electrical conductor, a surge arrester which has a longitudinal direction, an operating state in which the surge arrester is configured to limit an overvoltage occurring in the electrical conductor, and a test state in which the surge arrester is not configured to limit the overvoltage. An electrically insulating support is disposed between the surge arrester and the electrical conductor in the longitudinal direction. The support is supported by the electrical conductor, and the surge arrester is supported by the support.

First claim

The invention claimed is:

1. A conductor assembly, comprising:
a housing;
an electrical conductor;
a surge arrester disposed in said housing and having a longitudinal direction, an operating state and a test sate, said surge arrester configured to limit an overvoltage occurring in said electrical conductor in said operating state, and said surge arrester not configured to limit the overvoltage in said test state; and
an electrically insulating support disposed in said housing between said surge arrester and said electrical conductor in said longitudinal direction, said electrically insulating support being supported by said electrical conductor and said surge arrester being supported by said electrically insulating support;
said surge arrester having one side connected to ground and another side connected to said electrically insulating support.

2. The conductor assembly according to claim 1 , wherein said surge arrester includes a conductor connection, at least part of said conductor connection being moveable relative to a remainder of said surge arrester, permitting said conductor connection to switch said surge arrester between said operating state and said test state, said conductor connection projecting further from said remainder of said surge arrester in said operating state than in said test state.

3. The conductor assembly according to claim 1 , which further comprises a moving connection coupling said surge arrester and said electrically insulating support to one another, and permitting said electrically insulating support to move relative to said surge arrester in said longitudinal direction.

4. The conductor assembly according to claim 3 , wherein said surge arrester and said electrically insulating support define a gap therebetween in said longitudinal direction.

5. The conductor assembly according to claim 3 , wherein:
said surge arrester has an end facing said electrical conductor;
said surge arrester has a recess formed therein at said longitudinal end of said surge arrester facing said electrical conductor; and
said electrically insulating support has a first longitudinal end disposed in said recess; and
a flexible ring is disposed in said recess between said electrically insulating support and said surge arrester, said flexible ring having an axis of rotation substantially parallel to said longitudinal direction.

6. The conductor assembly according to claim 3 , wherein:
said surge arrester has a longitudinal end facing said electrical conductor;
said surge arrester includes a contact hood disposed at said longitudinal end of said surge arrester facing said electrical conductor; and
said moving connection is disposed in said contact hood.

7. The conductor assembly according to claim 6 , which further comprises an electrically conductive element configured to electrically conductively connect said electrically insulating support to said contact hood.

8. The conductor assembly according to claim 1 , which further comprises an electrically conductive element configured to electrically conductively connect said electrically insulating support to said surge arrester.

9. The conductor assembly according to claim 7 , wherein said electrically conductive element is a contact spring or a helical spring or a socket including inwardly projecting lamellae.

10. The conductor assembly according to claim 1 , which further comprises a permanent connection permanently attaching said electrically insulating support to said electrical conductor.

11. The conductor assembly according to claim 1 , which further comprises an electrically conductive contact disk disposed between said electrically insulating support and said electrical conductor in said longitudinal direction, said electrically conductive contact disk electrically conductively connecting said electrical conductor to said surge arrester in said operating state.

12. The conductor assembly according to claim 11 , wherein said electrically insulating support is permanently screwed to said electrically conductive contact disk.

13. The conductor assembly according to claim 11 , wherein:
said surge arrester includes a conductor connection, at least part of said conductor connection being moveable relative to a remainder of said surge arrester, permitting said conductor connection to switch said surge arrester between said operating state and said test state, said conductor connection projecting further from said remainder of said surge arrester in said operating state than in said test state; and
said electrically conductive contact disk has a contact recess formed therein; and
said conductor connection includes a contact pin disposed in said contact recess in said operating state.

14. The conductor assembly according to claim 1 , wherein said surge arrester includes a varistor or a plurality of varistors.

15. The conductor assembly according to claim 1 , which further comprises a housing encapsulating said electrical conductor, said surge arrester and said electrically insulating support.

16. The conductor assembly according to claim 15 , wherein said housing has two chambers and a wall separating said two chambers from one another in said housing, and said electrical conductor is supported by at least one of said housing or said wall.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Chyla Thomas
• Grund Armin
• Hatz Karsten
• Rössler Ralf

Classifications

• H01T4/10

  having a single gap or a plurality of gaps in parallel · CPC title

• H01T4/04

  Housings (H01T4/06 takes precedence) · CPC title

• H01T4/02 Primary

  Details · CPC title

• H01C7/126

  Means for protecting against excessive pressure or for disconnecting in case of failure · CPC title

• H01H2003/405

  using a walking nut · CPC title