Granted Patent B2

US 12,555,708 · App. 18/260,502 · Granted Feb 17, 2026

Inventors: Bernd Kruska (Berlin, DE); Bi Xue Liu (Jiangsu, CN); Arkadz Petchanka (Berlin, DE); Frank Reichert (Weissenfels, DE); Ralf Rössler (Berlin, DE)

Assignee: Siemens Energy Global GmbH & Co. KG

H01C7/126H01T1/14

Abstract

Claims (30)

1 . An assembly, comprising:

a disconnecting device for a surge-arresting device, said disconnecting device containing:

a first contact;

a second contact;

a first path disposed between said first contact and said second contact, said first path having a switching element being thermally tripped, wherein a spark gap is disposed in said first path, wherein said switching element has a thermally actuatable rupture joint, a first switching section and a second switching section, said first and said second switching sections are mutually connected in an electrically conductive manner via said thermally actuatable rupture joint; and

a second path disposed electrically parallel to said first path and having an impedance element, said second path disposed between said first contact and said second contact.

2 . The assembly according to claim 1 , further comprising a spring element for applying a pre-tensioning force, said spring element compresses said second switching section against said second contact.

3 . The assembly according to claim 1 , wherein the pre-tensioning force acts on at least one of said first or said second switching section in a parallel direction to an axis which runs from said first contact to said second contact.

4 . The assembly according to claim 2 , wherein said first switching section is compressed by said spring element against said first contact, with an interposition of an insulating section.

5 . The assembly according to claim 1 , further comprising a housing having a first housing section and a second housing section, in said housing said first contact, said second contact and said switching element are accommodated, wherein a joint axis between said first housing section and said second housing section is generally oriented transversely to an axis running from said first contact to said second contact.

6 . The assembly according to claim 5 , further comprising a jacket enclosing said housing, said jacket secures said first and said second housing sections relative to one another.

7 . The assembly according to claim 6 , wherein said jacket surrounds said housing in a manner of a bushing, said jacket has a first bushing section connected to a second bushing section in a plug-in configuration.

8 . The assembly according to claim 6 , wherein said housing has at least one channel and delimits an interior space which is connected by means of said at least one channel to a joint gap which is disposed between said housing and said jacket.

9 . The assembly according to claim 7 , wherein:

said first bushing section has an electrically conductive through-connection, which is connected to said first contact in an electrically conductive manner; and

said second bushing section has an electrically conductive through-connection, which is connected to said second contact in an electrically conductive manner.

10 . The assembly according to claim 1 , wherein said first switching section assumes a greater wall thickness than said second switching section.

11 . The assembly according to claim 1 , wherein said first switching section has a greater width than said second switching section.

12 . The assembly according to claim 1 , wherein said second switching section has a crumple zone.

13 . The assembly according to claim 1 , wherein said second contact has an arcing root point.

14 . The assembly according to claim 1 , wherein:

said first contact is connected to the surge-arresting device in an electrically conductive manner; or

said second contact is connected to the surge-arresting device in an electrically conductive manner.

15 . The assembly according to claim 1 , wherein:

said second contact is energized with a ground potential; or

said first contact is energized with the ground potential.

16 . The assembly according to claim 12 , wherein said crumple zone is a perforated zone.

17 . The assembly according to claim 14 , wherein:

said first contact is carried by the surge-arresting device; or

said second contact is carried by the surge-arresting device.

Assignments (3)

Priority Claims (1)

Continuity (1)

References Cited (21)