Panelboard, and switchgear assembly and stab assembly therefor

Patent metadata

Field	Value
Publication number	US-9525275-B2
Application number	US-201414571382-A
Country	US
Kind code	B2
Filing date	Dec 16, 2014
Priority date	Dec 16, 2014
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

A stab assembly is for a switchgear assembly of a panelboard. The stab assembly includes: a bus bar having: a mounting portion located on a backpan, the mounting portion including a number of edges each defining an aperture, and a number of elongated extensions each extending from the mounting portion into a corresponding electrical switching apparatus, the elongated extensions including a plug-on elongated extension; and a number of line terminals including a twofold line terminal, the twofold line terminal having: a bolt-on portion engaging the mounting portion, the bolt-on portion having an edge defining a thru hole, the edge of the bolt-on portion substantially overlaying one of the edges of the mounting portion, and a plug-on portion extending from the bolt-on portion, the plug-on portion having an engaging portion. The engaging portion substantially overlays the plug-on elongated extension. The engaging portion engages the plug-on elongated extension.

First claim

What is claimed is:

1. A stab assembly for a switchgear assembly of a panelboard, said panelboard comprising a backpan, said switchgear assembly comprising a number of electrical switching apparatus each disposed on said backpan, said stab assembly comprising:
at least one bus bar comprising:
a mounting portion structured to be disposed on said backpan, the mounting portion comprising a number of edges each defining a respective aperture, and
a number of elongated extensions each being structured to extend from the mounting portion into a corresponding one of the number of electrical switching apparatus, said number of elongated extensions comprising a plug-on elongated extension; and

a number of line terminals comprising at least one twofold line terminal, said at least one twofold line terminal comprising:
a bolt-on portion engaging the mounting portion, the bolt-on portion having an edge defining a thru hole, the edge of the bolt-on portion substantially overlaying a corresponding one of the edges of the mounting portion, and
a plug-on portion extending from the bolt-on portion, the plug-on portion comprising an engaging portion,

wherein the engaging portion substantially overlays the plug-on elongated extension, and
wherein the engaging portion engages the plug-on elongated extension.

2. The stab assembly of claim 1 wherein the plug-on portion further comprises a first retaining portion and a second retaining portion, and wherein the engaging portion extends from the first retaining portion to the second retaining portion.

3. The stab assembly of claim 2 wherein the first retaining portion comprises a first wall and a second wall, wherein the first wall is disposed in a first plane, wherein the second wall is disposed in a second plane, wherein the first plane is parallel to and spaced from the second plane, wherein the first wall extends from the bolt-on portion, and wherein the second wall extends from the engaging portion.

4. The stab assembly of claim 1 wherein said number of edges of the mounting portion comprises a first edge and a second edge, wherein said number of elongated extensions further comprises another elongated extension, and wherein each of the first edge and the second edge is disposed between the plug-on elongated extension and the another elongated extension.

5. The stab assembly of claim 4 wherein said at least one twofold line terminal comprises a first twofold line terminal and a second twofold line terminal, wherein the edge of the bolt-on portion of the first twofold line terminal substantially overlays the first edge of the mounting portion, and wherein the edge of the bolt-on portion of the second twofold line terminal substantially overlays the second edge of the mounting portion.

6. The stab assembly of claim 4 wherein the edge of the bolt-on portion of said at least one twofold line terminal substantially overlays the first edge, wherein said number of line terminals further comprises another line terminal, wherein said another line terminal comprises a bolt-on portion engaging the mounting portion, wherein the bolt-on portion of said another line terminal has an edge defining a thru hole, and wherein the edge of said another line terminal substantially overlays the second edge.

7. The stab assembly of claim 1 wherein said number of elongated extensions further comprises another elongated extension, wherein said number of line terminals further comprises a onefold line terminal, wherein said onefold line terminal has a slot, wherein said onefold line terminal comprises a bolt-on portion engaging the mounting portion, wherein the bolt-on portion of said onefold line terminal has an edge defining a thru hole, wherein the edge of said onefold line terminal substantially overlays another corresponding one of the edges of said mounting portion, and wherein said another elongated extension extends through the slot.

8. The stab assembly of claim 7 wherein said onefold line terminal comprises a first wall, a second wall, a third wall, a fourth wall, and a fifth wall, wherein the first wall connects the bolt-on portion of said onefold line terminal to the second wall, wherein the second wall connects the first wall to the third wall, wherein the third wall connects the second wall to the fourth wall, wherein the fourth wall connects the third wall to the fifth wall, wherein the first wall is parallel to each of the third wall and the fifth wall, wherein each of the second wall and the fourth wall is perpendicular to the first wall, and wherein the slot is disposed in each of the second wall, the third wall, and the fourth wall.

9. A switchgear assembly for a panelboard, said panelboard comprising a backpan, said switchgear assembly comprising:
a number of electrical switching apparatus each structured to be disposed on said backpan; and
a stab assembly comprising:
at least one bus bar comprising:
a mounting portion structured to be disposed on said backpan, the mounting portion comprising a number of edges each defining a respective aperture, and
a number of elongated extensions each extending from the mounting portion into a corresponding one of the number of electrical switching apparatus, said number of elongated extensions comprising a plug-on elongated extension, and

a number of line terminals comprising at least one twofold line terminal, said at least one twofold line terminal comprising:
a bolt-on portion engaging the mounting portion, the bolt-on portion having an edge defining a thru hole, the edge of the bolt-on portion substantially overlaying a corresponding one of the edges of the mounting portion, and
a plug-on portion extending from the bolt-on portion, the plug-on portion comprising an engaging portion,

wherein the engaging portion substantially overlays the plug-on elongated extension, and
wherein the engaging portion engages the plug-on elongated extension.

10. The switchgear assembly of claim 9 wherein said number of electrical switching apparatus comprises at least one twofold electrical switching apparatus, wherein said at least one twofold electrical switching apparatus comprises a housing and a spring disposed within said housing, wherein said spring comprises a first clamping portion and a second clamping portion, wherein the first clamping portion engages the plug-on elongated extension, and wherein the second clamping portion engages the engaging portion of said at least one twofold line terminal.

11. The switchgear assembly of claim 10 wherein said number of electrical switching apparatus further comprises at least one onefold electrical switching apparatus, wherein said number of line terminals further comprises at least one onefold line terminal, wherein said at least one onefold line terminal has a slot, wherein said at least one onefold line terminal comprises a bolt-on portion engaging the mounting portion, wherein the bolt-on portion of said at least one onefold line terminal has an edge defining a thru hole, wherein the edge of said at least one onefold line terminal substantially overlays another corresponding one of the edges of said mounting portion, wherein said number of elongated extensions further comprises another elongated extension, wherein said another elongated extension extends through the slot, and wherein each of said another elongated extension and said at least one onefold line terminal extends into said at least one onefold electrical switching apparatus.

12. The switchgear assembly of claim 11 wherein said at least one twofold electrical switching apparatus comprises a plurality of twofold electrical switching apparatus, and wherein said at least one onefold electrical switchin

Assignees

• Eaton Corp

Inventors

• Ranta Michael John

Classifications

• H02B1/21 Primary

  Bus-bar arrangements for rack-mounted devices with withdrawable units · CPC title

• H02B1/056 Primary

  Mounting on plugboards · CPC title

• H02B1/32 Primary

  Mounting of devices therein · CPC title

• H02B1/42

  Mounting of devices therein · CPC title