Systems and methods for connecting power distribution devices

Patent metadata

Field	Value
Publication number	US-10290986-B2
Application number	US-201715720881-A
Country	US
Kind code	B2
Filing date	Sep 29, 2017
Priority date	Sep 29, 2017
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A multi-bolt joint stack for use in an electrical power distribution system. The joint stack includes (1) a plurality of conductive plate sets, each plate set including a first conductive plate and a second conductive plate separated by a first spacer and a second spacer; (2) a first clamping bolt extending through the plurality of conductive plate sets and the first spacer of each conductive plate set; and (3) a second clamping bolt extending through the plurality of conductive plate sets and the second spacer of each conductive plate set. The first and second clamping bolts are separated from each other to define a plurality of pockets within the joint stack, each pocket being formed by the first and second conductive plates and first and second spacers of the plurality of conductive plate sets. The pockets are configured to receive electrical stabs. Numerous other aspects are provided.

First claim

What is claimed is:

1. An electrical power distribution system, comprising:
a pocketed multi-bolt joint stack having a first end and a second end;
a first busway section having a first set of bus bars and a first joint end, the first joint end and the first end of the pocketed multi-bolt joint stack disposed in a first interleaved relationship;
a second busway section having a second set of bus bars and a second joint end, the second joint end and the second end of the pocketed multi-bolt joint stack disposed in a second interleaved relationship; and
a first bolt, and a second bolt, each disposed in the pocketed multi-bolt joint stack, the first bolt and the second bolt having a spaced-apart relationship such that a region of the pocketed multi-bolt joint stack between the first bolt and the second bolt provides one or more pockets;
a tap box connected to the pocketed multi-bolt joint stack,
wherein the one or more pockets are configured to receive one or more electrical stabs from the tap box,
wherein the one or more electrical stabs are arranged to protrude distally away from a side of the tap box,
wherein the electrical stabs are disposed within the one or more pockets of the pocketed multi-bolt joint stack.

2. The electrical power distribution system of claim 1 , wherein the first bolt is disposed in the pocketed multi-bolt joint stack closer to the first joint end of the first busway section than to the second joint end of the second busway section, and the second bolt is disposed in the pocketed multi-bolt joint stack closer to the second joint end of the second busway section than to the first joint end of the first busway section.

3. The electrical power distribution system of claim 1 , wherein the first busway section and the second busway section are co-linear with each other.

4. The electrical power distribution system of claim 3 , wherein the pocketed multi-bolt joint stack is co-linear with the first busway section and the second busway section.

5. The electrical power distribution system of claim 1 , wherein the pocketed multi-bolt joint stack is configured to provide electrical continuity between the first joint end of the first busway section, the second joint end of the second busway section, and the electrical stabs of the tap box.

6. The electrical power distribution system of claim 1 , wherein the first busway section and the second busway section are nominally vertically oriented.

7. The electrical power distribution system of claim 1 , wherein the first bolt and the second bolt are positioned to provide nominally equal clamping force between the first joint end of the first busway section, the second joint end of the second busway section, and the electrical stabs of the tap box.

8. The electrical power distribution system of claim 7 , wherein:
the first bolt does not extend through the first set of bus bars, the second set of bus bars, or the electrical stabs;
the second bolt does not extend through the first set of bus bars, the second set of bus bars, or the electrical stabs;
the first busway section includes a first housing that encloses at least a portion of the first set of bus bars; and
the second busway section includes a second housing that encloses at least a portion of the second set of bus bars.

9. The electrical power distribution system of claim 1 , wherein the first bolt and the second bolt are configured to clamp together the pocketed multi-bolt joint stack, the first joint end of the first busway section, the second joint end of the second busway section, and the electrical stabs of the tap box.

10. A method, comprising:
coupling a first joint end of a first busway section to a second joint end of a second busway section with a pocketed multi-bolt joint stack, wherein the first busway section and the second busway section are nominally co-linear; and
coupling a tap box to the pocketed multi-bolt joint stack;
wherein the pocketed multi-bolt joint stack includes at least two spaced-apart clamping bolts that are spaced apart from each other in a linear direction of the first and second busway sections so as to define one or more pockets for the tap box to couple to the pocketed multi-bolt joint stack,
arranging in the tap box one or more electrical stabs protruding distally away from a side of the tap box;
disposing the one or more electrical stabs in the one or more pockets between the at least two spaced-apart clamping bolts; and
torquing the at least two spaced-apart clamping bolts to a predetermined specification to mechanically secure the tap box within the one or more pockets.

11. The method of claim 10 , further comprising:
disposing a first one of the at least two clamping bolts in the pocketed multi-bolt joint stack such that the first one of the at least two clamping bolts is closer to the first joint end of the first busway section than to the second joint end of the second busway section; and
disposing a second one of the at least two clamping bolts in the pocketed multi-bolt joint stack such that the second one of the at least two clamping bolts is closer to the second joint end of the second busway section than to the first joint end of the first busway section.

12. The method of claim 11 , wherein a section of the pocketed multi-bolt joint stack between the at least two spaced-apart clamping bolts provides one or more pockets into which one or more electrical stabs of a tap box may be disposed.

13. The method of claim 10 , further comprising:
providing the first busway section, the first busway section having a first set of bus bars; and
providing the second busway section, the second busway section having a second set of bus bars;
wherein the first busway section includes a first housing that encloses at least a portion of the first set of bus bars, and the second busway section includes a second housing that encloses at least a portion of the second set of bus bars.

14. A multi-bolt joint stack for use in forming an electrical power distribution system, the multi-bolt joint stack comprising:
a plurality of conductive plate sets, each conductive plate set including a first conductive plate and a second conductive plate separated by a first spacer and a second spacer;
a first clamping bolt extending through the plurality of conductive plate sets and the first spacer of each conductive plate set; and
a second clamping bolt extending through the plurality of conductive plate sets and the second spacer of each conductive plate set;
wherein the first clamping bolt and the second clamping bolt are separated from each other so as to define a plurality of pockets within the multi-bolt joint stack, each pocket being formed by the first conductive plate, the second conductive plate, the first spacer and the second spacer of the plurality of conductive plate sets; and
wherein the plurality of pockets are configured to receive electrical stabs from a tap box, which constitutes a separate structure from busway sections of the electrical power distribution system interconnected by way of the multi-bolt joint stack.

15. The multi-bolt joint stack of claim 14 first comprising a first side configured to receive a joint end of a first busway section and a second side configured to receive a joint end of a second busway section, wherein the first clamping bolt is disposed in the multi-bolt joint stack closer to the first side of the multi-bolt joint stack than the second clamping bolt and the second clamping bolt is disposed in the multi-bolt joint stack closer to the second side of the multi-bolt joint stack than the first clamping bolt.

Assignees

• Siemens Industry Inc

Inventors

• Pever Steven E
• Fink Timothy J

Classifications

• H02G5/08

  Connection boxes therefor · 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

• 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

• H02G5/00

  Installations of bus-bars · CPC title

• H01R25/16

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