Electrical busway joint with laminated bracing system

Patent metadata

Field	Value
Publication number	US-9705300-B1
Application number	US-201614990053-A
Country	US
Kind code	B1
Filing date	Jan 7, 2016
Priority date	Jan 7, 2016
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A busway system is provided. The busway system includes a first electrical busway section and a busway joint. The busway joint includes a plurality of conductors spaced apart in parallel and a first assembly. The conductors and the first assembly are coupled to the first busway section. The first assembly includes a plurality of insulation laminations spaced apart to define a plurality of gaps, a plurality of insulating spacers positioned within the gaps adjacent the conductors, and a plurality of bracing fasteners extending through the insulation laminations and the insulating spacers. Each gap receives at least one conductor. A width of the gap is substantially filled by the conductors and the insulating spacers. The bracing fasteners secure the conductors within the first assembly.

First claim

What is claimed is:

1. A busway system comprising:
a first electrical busway section; and
a busway joint comprising:
a plurality of conductors spaced apart in parallel and coupled to said first busway section; and
a first assembly coupled to said first busway section, said first assembly comprising:
a plurality of insulation laminations spaced apart to define a plurality of gaps, each gap of said plurality of gaps configured to receive at least one conductor of said plurality of conductors;
a plurality of insulating spacers positioned within said plurality of gaps adjacent said plurality of conductors, wherein a width of said gaps is substantially filled by said plurality of conductors and said plurality of insulating spacers; and
a plurality of bracing fasteners adjacent to said plurality of conductors and extending through said plurality of insulation laminations and said plurality of insulating spacers, and configured to secure said plurality of conductors.

2. The busway system of claim 1 , wherein each insulating spacer of said plurality of insulating spacers includes at least one aperture configured to receive said plurality of bracing fasteners.

3. The busway system of claim 2 , wherein said plurality of insulation laminations further comprises a top insulation lamination and a bottom insulation lamination, and wherein said plurality of bracing fasteners is configured to cause at least one of said top and said bottom insulation laminations to selectively provide a compressive force to said plurality of conductors.

4. The busway system of claim 3 , wherein said plurality of bracing fasteners is further configured to adjust the compressive force.

5. The busway system of claim 4 , wherein said plurality of bracing fasteners are further configured to selectively remove the compressive force, wherein said first assembly is configured to move relative to said plurality of conductors with the compressive force removed.

6. The busway system of claim 1 , wherein each conductor of said plurality of conductors is positioned between a pair of said plurality of insulating spacers within a respective gap of said plurality of gaps.

7. The busway system of claim 1 , wherein each insulation lamination of said plurality of insulation laminations comprises a plurality of stacked insulation sheets.

8. The busway system of claim 7 , wherein said plurality of stacked insulation sheets for each insulation lamination are offset from one another to extend a creepage path between adjacent conductors of said plurality of conductors.

9. A busway joint comprising:
a plurality of conductors spaced apart in parallel and electrically coupled to a busway section; and
a first assembly coupled to the busway section, said first assembly comprising:
a plurality of insulation laminations spaced apart to define a plurality of gaps, each gap of said plurality of gaps configured to receive at least one conductor of said plurality of conductors;
a plurality of insulating spacers positioned within said plurality of gaps adjacent said plurality of conductors, wherein said plurality of gaps are substantially filled by said plurality of conductors and said plurality of insulating spacers; and
a plurality of bracing fasteners adjacent to said plurality of conductors and extending through said plurality of insulation laminations and said plurality of insulating spacers, and configured to secure said plurality of conductors.

10. The busway joint of claim 9 , wherein each insulating spacer of said plurality of insulating spacers includes at least one aperture to receive said plurality of bracing fasteners.

11. The busway system of claim 10 , wherein said plurality of insulation laminations further comprises a top insulation lamination and a bottom insulation lamination, and wherein said plurality of bracing fasteners are configured to cause at least one of said top and said bottom insulation laminations to selectively provide a compressive force to said plurality of conductors.

12. The busway joint of claim 11 , wherein said plurality of bracing fasteners are configured adjust the compressive force.

13. The busway system of claim 12 , wherein said plurality of bracing fasteners are further configured to selectively remove the compressive force, wherein said first assembly is configured to move relative to said plurality of conductors with the compressive force removed.

14. The busway joint of claim 9 , wherein each conductor of said plurality of conductors is positioned between a pair of said plurality of insulating spacers within a respective gap of said plurality of gaps.

15. The busway joint of claim 9 , wherein each insulation lamination of said plurality of insulation laminations comprises a plurality of stacked insulation sheets.

16. The busway joint of claim 15 , wherein said plurality of stacked insulation sheets for each insulation lamination of said plurality of insulation laminations are offset from one another to extend a creepage path between adjacent conductors of said plurality of conductors.

17. A method for assembling a busway joint, said method comprising:
coupling a plurality of insulation laminations to a plurality of insulating spacers to form a first assembly and a second assembly, the plurality of insulation laminations spaced apart to define a plurality of gaps, wherein the plurality of insulating spacers is positioned within the plurality of gaps;
coupling a plurality of conductors between the first and the second assemblies, each conductor of the plurality of conductors coupled within a respective gap of the plurality of gaps, wherein the plurality of gaps are substantially filled by the plurality of conductors and the plurality of insulating spacers; and
clamping the first and the second assemblies and the plurality of conductors together with a plurality of bracing fasteners adjacent to the plurality of conductors, wherein the plurality of bracing fasteners extend through the plurality of insulating spacers and the plurality of insulation laminations.

18. The method of claim 17 , wherein clamping the first and the second assemblies and the plurality of conductors together further comprises:
positioning the plurality of bracing fasteners within apertures formed in the plurality of insulation laminations and the plurality of insulating spacers; and
adjusting the plurality of bracing fasteners to cause at least one of a top lamination and a bottom lamination of the first and the second assemblies to selectively provide a compressive force on the plurality of conductors.

19. The method of claim 17 , wherein coupling the plurality of conductors between the first and the second assemblies further comprises receiving a conductor of the plurality of conductors in a respective gap of the plurality of gaps, wherein the conductor is coupled between a pair of insulating spacers of the plurality of insulating spacers within the gap.

20. The method of claim 17 , wherein each insulation lamination of the plurality of insulation laminations includes a plurality of stacked insulation sheets, and wherein coupling the plurality of insulation laminations to the plurality of insulating spacers to form the first and the second assemblies further comprises offsetting the plurality of stacked insulation sheets for each insulation lamination of the plurality of insulation laminations to extend a creepage path between each conductor of the plurality of conductors.

Assignees

• Gen Electric

Inventors

• Maurer William Patrick
• Nguyen Vu Dinh
• Gifford Deniz Semih

Classifications

• H02G5/007 Primary

  Butt joining of bus-bars by means of a common bolt, e.g. splice joint (electrically conductive connections characterised by contacting members H01R4/58) · CPC title

• H01R25/162

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

• H01R25/16 Primary

  Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts · CPC title

• H01R25/00

  Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits (supported only by co-operation with a counterpart H01R31/00; with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/88) · CPC title