Modular switchgear connection and method of electrically connecting a modular compartment to a switchgear assembly

Patent metadata

Field	Value
Publication number	US-9871331-B2
Application number	US-201314763552-A
Country	US
Kind code	B2
Filing date	Jan 31, 2013
Priority date	Jan 31, 2013
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A modular switchgear electrical connection for use with a modular compartment includes a branch busbar having a busbar aperture defined by the branch busbar. Also included is a connection arrangement for establishing an electrical connection with the branch busbar. The connection arrangement includes a fastener extending through the busbar aperture toward the modular compartment. The connection arrangement also includes a spout including a base wall and a cavity defined by at least one wall extending from the base wall, wherein the base wall includes a spout aperture for receiving the fastener. The connection arrangement further includes a contact component including a base portion a cylindrical portion extending from the base portion, the contact component defining an aperture for receiving the fastener, the contact component secured to the spout and the fastener with a nut for engaging the fastener.

First claim

The invention claimed is:

1. A modular switchgear connection for use with a modular compartment comprising:
a branch busbar having busbar aperture defined therethrough; and
a connection arrangement for establishing an electrical connection with the branch busbar, the connection arrangement comprising:
a fastener electrically coupled to the branch busbar, and extending through the busbar aperture toward the modular compartment;
an insulative spout including a base wall and a cavity defined by at least one wall extending away from the base wall and the branch busbar, wherein the base wall defines a spout aperture for receiving the fastener; and
a conductive contact component including a base portion and a cylindrical portion extending from the base portion, the conductive contact component defining an aperture for receiving the fastener, the conductive contact component disposed within the insulative spout cavity, and secured to the insulative spout and the fastener with a nut disposed in the conductive contact component aperture for engaging the fastener.

2. The modular switchgear connection of claim 1 , wherein the branch busbar is at least partially disposed within a switchgear main busbar circuit portion and is disposed proximate a connection region for electrically connecting to an electrical device within the modular compartment.

3. The modular switchgear connection of claim 1 , further comprising a recess proximate the base wall of the insulative spout for engagingly receiving the base portion of the conductive contact component.

4. The modular switchgear connection of claim 3 , wherein the recess and the base portion comprise a non-circular geometry.

5. The modular switchgear connection of claim 3 , wherein the recess and the base portion comprise a relatively hexagonal geometry.

6. The modular switchgear connection of claim 3 , further comprising a copper insert disposed proximate the base wall of the spout and comprising the recess for receiving the base portion of the conductive contact component.

7. The modular switchgear connection of claim 1 , wherein the busbar aperture, the insulative spout aperture and a portion of the fastener comprise a non-circular geometry.

8. The modular switchgear connection of claim 1 , wherein the busbar aperture, the insulative spout aperture and, a portion of the fastener comprise a relatively square geometry.

9. The modular switchgear connection of claim 1 , wherein the fastener comprises a fastener head shaped of a spherical segment.

10. The modular switchgear connection of claim 1 , further comprising a hexagonal recess within the cylindrical portion of the conductive contact component for engagingly receiving the nut, wherein the nut comprises a hexagonal geometry.

11. A method of electrically connecting a modular compartment to a switchgear assembly comprising:
inserting a fastener through a busbar aperture of a branch busbar;
electrically coupling the fastener and busbar;
aligning an aperture defined through a base wall of an insulative spout with the fastener;
receiving the fastener through the insulative spout aperture;
disposing a base portion of a conductive contact component within a recess proximate the base wall of the insulative spout and disposing the fastener through an aperture of the conductive contact component; and
securing the conductive contact component and the insulative spout to the branch busbar by engaging a nut with the fastener within the aperture of the conductive contact component.

12. The method of claim 11 , further comprising inserting and disposing a non-circular portion of the fastener within the busbar aperture and the insulative spout aperture, wherein the busbar aperture and the insulative spout aperture are non-circular.

13. The method of claim 12 , wherein the busbar aperture, the insulative spout aperture and the non-circular portion of the fastener comprise a relatively square geometry.

14. The method of claim 11 , further comprising disposing a copper insert proximate the base wall of the insulative spout, the copper insert having the recess for receiving the base portion of the conductive contact component.

15. The method of claim 14 , wherein the base portion of the conductive contact component comprises a non-circular geometry corresponding to a non-circular geometry of the recess.

16. The method of claim 15 , wherein the non-circular geometry of the recess and the base portion of the conductive contact component comprises a relatively hexagonal geometry.

17. The method of claim 11 , wherein securing the conductive contact component and the insulative spout to the branch busbar comprises engaging the nut with a threaded portion of the fastener.

18. The method of claim 11 , wherein the nut comprises a relatively hexagonal geometry, wherein securing the conductive contact component and the insulative spout to the branch busbar comprises disposing the nut within a hexagonal recess of the conductive contact component.

Assignees

• Gen Electric
• Ren Xuhui

Inventors

• Ren Xuhui

Classifications

• H02B11/04

  Isolating-contacts, e.g. mountings or shieldings · CPC title

• H01R25/162 Primary

  Electrical connections between or with rails or bus-bars (rails having primarily a non electrical function H01R4/64) · CPC title

• H01R9/18

  Fastening by means of screw or nut · CPC title

• H02B1/21 Primary

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

• Y10T29/4921

  with bonding · CPC title