Connection of at Least Four Electric Conductors

Patent metadata

Field	Value
Publication number	US-2016254657-A1
Application number	US-201415021033-A
Country	US
Kind code	A1
Filing date	Aug 28, 2014
Priority date	Sep 10, 2013
Publication date	Sep 1, 2016
Grant date	—

Abstract

A connection element for electrically conductive connections of at least four electric conductors. The connection element has a metallic electrode which has a cavity for merging the conductors and an opening into the cavity for each conductor. At least the outer surface of the electrode is surrounded with a paper insulation.

First claim

1 - 15 . (canceled)

16 . A connection element for electrically conductively connecting at least four electrical conductors, the connection element comprising:
a metallic electrode having an outer surface and having a hollow space formed therein for bringing together the at least four conductors; said electrode being formed with an opening into said hollow space for each said conductor; and a paper insulation surrounding at least said outer surface of said electrode.

17 . The connection element according to claim 16 , wherein each said opening has a round contour.

18 . The connection element according to claim 16 , wherein said metallic electrode is substantially cylindrical with two cylinder base surfaces and a cylinder lateral surface, and wherein each said cylinder base surface is formed with a respective said opening, and said cylinder lateral surface is formed with at least two said openings.

19 . The connection element according to claim 16 , wherein said outer surface of said electrode is a smooth surface.

20 . The connection element according to claim 16 , wherein said electrode has at least one torus-shaped electrode section surrounding a respective said opening.

21 . The connection element according to claim 16 , wherein said electrode has at least one electrode section surrounding a respective said opening, said at least one electrode section comprising a metal sheet with an edge region that is bent over towards said hollow space.

22 . The connection element according to claim 16 , which further comprises at least one insulation element composed of pressboard and being formed as a cap around a section of said electrode formed with a respective said opening, said at least one insulation element having a hole formed therein arranged above said opening and corresponding to said opening.

23 . The connection element according to claim 16 , which further comprises at least one insulation element composed of pressboard and having a shield section and a tubular section, wherein said shield section surrounds a region of said electrode which is formed with an opening, and is formed with a hole that is arranged above said opening and corresponds to said opening, and wherein said tubular section extends from the edges of said hole outward, so as to form an extension of said opening to the outside.

24 . The connection element according to claim 16 , which further comprises at least one insulation element composed of pressboard having a tubular shape and being arranged around said electrode along a longitudinal axis of said electrode, and said at least one insulation element being formed, in the region of said openings in said electrode, with holes that correspond to said openings.

25 . The connection element according to claim 16 , which further comprises:
at least one first insulation element composed of pressboard and being formed as a cap around a section of said electrode formed with a respective said opening, said at least one insulation element having a hole formed therein arranged above said opening and corresponding to said opening; at least one second insulation element composed of pressboard and having a shield section and a tubular section, wherein said shield section surrounds a region of said electrode which is formed with an opening, and is formed with a hole that is arranged above said opening and corresponds to said opening, and wherein said tubular section extends from the edges of said hole outward, so as to form an extension of said opening to the outside; and at least one third insulation element composed of pressboard having a tubular shape and being arranged around said electrode along a longitudinal axis of said electrode, and said at least one third insulation element being formed, in the region of said openings in said electrode, with holes that correspond to said openings.

26 . An assembly, comprising:
a connection element according to claim 16 ; at least four electrical conductors electrically connected to one another by way of said connection element; wherein each said conductor is routed through a shielding pipe, through a respective said opening in said connection element, and into said hollow space formed in said connection element, and wherein said conductors are electrically connected to one another in said hollow space in said connection element.

27 . The assembly according to claim 25 , wherein each said shielding pipe projects, by way of one pipe end, through a respective said opening into said hollow space in said electrode.

28 . The assembly according to claim 25 , wherein each said shielding pipe is surrounded by a tubular barrier outside said connection element, wherein said tubular barrier is composed of pressboard.

29 . The assembly according to claim 25 , wherein each said shielding pipe has a metal pipe which is surrounded on the outside by a pipe paper insulation.

30 . The assembly according to claim 25 , wherein said electrode is electrically connected to said conductors or to said conductors and said shielding pipes in one location.

31 . The assembly according to claim 25 , wherein said connection element and said shielding pipes are arranged in oil within a housing of a transformer or a choke coil and wherein at least three of said conductors are electrically conductively connected to a respective winding of the transformer or of the choke coil.

Assignees

• Siemens Ag

Inventors

• Hoppe Jens
• Loppach Karsten
• Wende Thomas
• Wimmer Rene Martin

Classifications

• H01R9/0506

  Connection between three or more cable ends · CPC title

• H01F27/2828

  Construction of conductive connections, of leads · CPC title

• H01F27/04 Primary

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

• H01B17/26

  Lead-in insulators; Lead-through insulators · CPC title

• H02G15/08 Primary

  Cable junctions (for gas or oil filled cables H02G15/24) · CPC title