Non-fusible switch assemblies, line base assemblies, load bus connector assemblies, and operational methods

Patent metadata

Field	Value
Publication number	US-9543085-B2
Application number	US-201414484577-A
Country	US
Kind code	B2
Filing date	Sep 12, 2014
Priority date	Sep 12, 2014
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A non-fusible switch assembly including a line base assembly is disclosed. Line base assembly includes a load bus connector assembly with single-piece lug body, first and second load lugs formed in the lug body, and load-side sliding nuts slidably received in first and second load-side slide features, and load-side stationary contacts positioned directly underneath of the first and second load lugs within a projected footprint of the lug body. Line base assemblies, load lug connector assemblies and methods of operating a line base assembly are provided, as are other aspects.

First claim

What is claimed is:

1. A line base assembly, comprising:
a base;
a line bus connector assembly coupled to the base, the line bus connector assembly including:
a connector body including a first body portion and a second body portion extending from the first body portion and being thinner than first body portion, wherein the connector body is a single piece, first and second line lugs formed in the first body portion, and first and second line slide features formed in the connector body,
first and second line-side sliding nuts configured to be received in the first and second line slide features, and
line-side stationary contacts coupled to the second body portion; and

a load bus connector assembly coupled to the base, the load bus connector assembly including:
a lug body including a front side, a back side, and an underside, wherein the lug body is a single piece, first and second load lugs formed in the lug body, and first and second load slide features formed in the lug body,
first and second load-side sliding nuts configured to be received in the first and second load slide features, and
load-side stationary contacts attached to, and extending downward from, the underside of the lug body, and wherein the load-side stationary contacts are positioned directly underneath of the first and second load lugs within a projected footprint of the lug body.

2. A line base switch assembly including the line base assembly of claim 1 and a rotor assembly including blades mounted for rotation relative to the base, wherein the blades are configured to electrically connect to the line-side stationary contacts and the load-side stationary contacts.

3. A line base assembly of claim 1 comprising an arc shield covering the line-side stationary contacts.

4. A non-fusible switch assembly, comprising:
a line base assembly including:
a base;
a line bus connector assembly coupled to the base, wherein the line bus connector assembly comprises:
a connector body including a first body portion and a second body portion extending from the first body portion and being thinner than first body portion, wherein the lug body is a single piece, first and second line lugs formed in the first body portion, and first and second line-side slide features formed in the connector body,
first and second line-side sliding nuts configured to be received in the first and second
line-side slide features, and
line-side stationary contacts coupled to the second body portion;
a load bus connector assembly coupled to the base, the load bus connector assembly including:
a lug body including a front side, a back side, and an underside, wherein the lug body is a single piece, first and second load lugs formed in the lug body, and first and second load slide features formed in the lug body,
first and second load-side sliding nuts configured to be received in the first and second load slide features, and
load-side stationary contacts attached to, and extending downward from, the underside of the lug body, and wherein the load-side stationary contacts are positioned directly underneath of the first and second load lugs within a projected footprint of the lug body; and

a rotor assembly including blades adapted to electrically couple to line-side stationary contacts and the load-side stationary contacts.

5. The non-fusible switch assembly of claim 4 , wherein an outside contour configuration, the first and second load lugs, and the first and second load slide features of the load bus connector assembly are extruded.

6. The non-fusible switch assembly of claim 4 , wherein the front side and the back side of the lug body comprise machined planar surfaces.

7. The non-fusible switch assembly of claim 4 , comprising one or more stops provided on the first and second load-side sliding nuts.

8. The non-fusible switch assembly of claim 4 , wherein the lug body includes a first flange and a second flange extending in opposite directions.

9. The non-fusible switch assembly of claim 8 , comprising registration features provided on the first flange and the second flange that are configured to register with features provided on the base.

10. A line bus connector assembly for use with a base, the line bus connector assembly including:
a connector body including a first body portion and a second body portion extending from the first body portion and being thinner than first body portion, wherein the connector body is a single piece, first and second line lugs formed in the first body portion, and first and second line slide features formed in the connector body,
first and second line-side sliding nuts configured to be received in the first and second line slide features, and
line-side stationary contacts coupled to the second body portion.

11. The line bus connector assembly of claim 10 , further comprising:
an outer contour configuration of the first body portion and the second body portion of the line bus connector assembly that is extruded.

12. The line bus connector assembly of claim 10 , further comprising:
an extruded component including a structure and contours of the first body portion and the second body portion that is formed in an extrusion direction.

Assignees

• Siemens Industry Inc

Inventors

• Holland Michael J
• Jameson Thomas

Classifications

• H01H9/34

  Stationary parts for restricting or subdividing the arc, e.g. barrier plate · CPC title

• H01H1/42

  Knife-and-clip contacts · CPC title

• H01H71/08

  Terminals; Connections · CPC title

• H01H9/36 Primary

  Metal parts · CPC title

• H01H2031/286

  wherein the contact is rotatable around its own longitudinal axis · CPC title