CA2087764A1 - Electric power busway adjustable power take-off-joint - Google Patents
Electric power busway adjustable power take-off-jointInfo
- Publication number
- CA2087764A1 CA2087764A1 CA 2087764 CA2087764A CA2087764A1 CA 2087764 A1 CA2087764 A1 CA 2087764A1 CA 2087764 CA2087764 CA 2087764 CA 2087764 A CA2087764 A CA 2087764A CA 2087764 A1 CA2087764 A1 CA 2087764A1
- Authority
- CA
- Canada
- Prior art keywords
- busway
- plates
- joint
- electrically
- elongated bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/007—Butt joining of bus-bars by means of a common bolt, e.g. splice joint
Landscapes
- Non-Insulated Conductors (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
ELECTRIC POWER BUSWAY ADJUSTABLE
POWER TAKE-OFF-JOINT
ABSTRACT OF THE DISCLOSURE
An electric power busway joint includes a plurality of metal electrically conductive splice plates and electrically insulative separator plates interleaved to receive the ends of adjoining electrical busway power conductors. The busway joint is defined by a pair of apertured side plates which receive an elongated bolt electrically connecting the ends of the busway conductors with the conductive splice plates by means of spring-loaded Belville washers. A plurality of busway stabs having elongated slots formed within one end are electrically interconnected with the busway conductors by means of the conductive splice plates and a separate elongated bolt. The elongated slots allow the ends of the busway stabs to be ad-justed accordingly while maintaining the integrity of the electrical connection between the busbar connectors.
POWER TAKE-OFF-JOINT
ABSTRACT OF THE DISCLOSURE
An electric power busway joint includes a plurality of metal electrically conductive splice plates and electrically insulative separator plates interleaved to receive the ends of adjoining electrical busway power conductors. The busway joint is defined by a pair of apertured side plates which receive an elongated bolt electrically connecting the ends of the busway conductors with the conductive splice plates by means of spring-loaded Belville washers. A plurality of busway stabs having elongated slots formed within one end are electrically interconnected with the busway conductors by means of the conductive splice plates and a separate elongated bolt. The elongated slots allow the ends of the busway stabs to be ad-justed accordingly while maintaining the integrity of the electrical connection between the busbar connectors.
Description
~8776~
POWER TAKE-O~FF-JO:lNT
BACXGROUND OF THE INVENTION
U.S. Patent 4,804,804 enti~led "Thermally Efficient Power Busway Housing" describes a plurality of electric power busbar conductors (hereaftar "busbars'l) that are bolted together to provide excellent thermal transfer away from the busbars and to hold the busbars ~gainst strong electromagnetic repulsive forces. A thin layer of epoxy resin deters the trans~er of cuxrent between the busbars while, at the same time, promotes the - 10 thermal transfer.
U.S. Patent 4,842,533 and 4,849,581 describe ad-justable electrical joint connectors for connecting be-tween corresponding pairs o~ electrical busbars.
: U.S. Patent 4,097,103 describes a busway plug as-; 15 sembly wherein the busbars are electricall~ connected to an electrical switch or circuit breaker to control the trans~er of current through the busway systemO
To pr w ide external electrical connection with the electrically connected busbars, the busway joint is provided with a plurali~y of busbar stabs extending from the busway housing as described in the 2~7~3i~
aforementioned U.S. Patent 4,097,103. To prevent inadvertent electrical circuit with the busbar stabs, the busway plug assembly is mechanically joined to the busway housing.
In prior art designs, th~ busway plug assembly is custom-modified to fit the space requirements of the busway system. It would be economically advantageous to provide a busway system whereby a modular busway plug assembly can be readily connected at the busway joint without requiring custom modification of the busway plug assembly or to the busway syste~ itself.
One purpose of the invention is to describe a busway joint which connects two associated sections of electric power busway and which also includes a plurality of ad-justable busbar stabs.
SUMMARY OF THE INVENTION
A busway joint consisting o~ a plurality of inter-leaved electrically-conductive splice plates and electri-cally-insulative separator plates bolted together by means of an elongated bolt and a pair o~ Belville washers further includes a second elongated bolt and a plurality of busbar stabs having elongated slots at one end. The elongated slots allow the length o~ the busway stabs to be adjusted without requiriny mechanical disconnection of the busway joint.
, 2~77~
POWER TAKE-O~FF-JO:lNT
BACXGROUND OF THE INVENTION
U.S. Patent 4,804,804 enti~led "Thermally Efficient Power Busway Housing" describes a plurality of electric power busbar conductors (hereaftar "busbars'l) that are bolted together to provide excellent thermal transfer away from the busbars and to hold the busbars ~gainst strong electromagnetic repulsive forces. A thin layer of epoxy resin deters the trans~er of cuxrent between the busbars while, at the same time, promotes the - 10 thermal transfer.
U.S. Patent 4,842,533 and 4,849,581 describe ad-justable electrical joint connectors for connecting be-tween corresponding pairs o~ electrical busbars.
: U.S. Patent 4,097,103 describes a busway plug as-; 15 sembly wherein the busbars are electricall~ connected to an electrical switch or circuit breaker to control the trans~er of current through the busway systemO
To pr w ide external electrical connection with the electrically connected busbars, the busway joint is provided with a plurali~y of busbar stabs extending from the busway housing as described in the 2~7~3i~
aforementioned U.S. Patent 4,097,103. To prevent inadvertent electrical circuit with the busbar stabs, the busway plug assembly is mechanically joined to the busway housing.
In prior art designs, th~ busway plug assembly is custom-modified to fit the space requirements of the busway system. It would be economically advantageous to provide a busway system whereby a modular busway plug assembly can be readily connected at the busway joint without requiring custom modification of the busway plug assembly or to the busway syste~ itself.
One purpose of the invention is to describe a busway joint which connects two associated sections of electric power busway and which also includes a plurality of ad-justable busbar stabs.
SUMMARY OF THE INVENTION
A busway joint consisting o~ a plurality of inter-leaved electrically-conductive splice plates and electri-cally-insulative separator plates bolted together by means of an elongated bolt and a pair o~ Belville washers further includes a second elongated bolt and a plurality of busbar stabs having elongated slots at one end. The elongated slots allow the length o~ the busway stabs to be adjusted without requiriny mechanical disconnection of the busway joint.
, 2~77~
- 3 ~ 41PR-6822 BRIEF DESCRIPTION OF THE DRAWINGS
Figure l is a side perspective view of a busway system and busway plug in accordance with the prior art:
Figure 2 is a top perspective view in isometric pro-jection of the busway joint prior to assembly accordiny to the invention having adjustable busbar stabs;
Figure 3A is a top plan view of the busway joint of Figure 2 assembled together according to the tsachings of the invention with the adju table busbar stabs positioned at a minimum distance from the busway joint; and Figure 3B is a top plan view of the busway joint of Figure 3A with the adjustable busbar stabs positioned at a maximum distance from the busway joint.
DESCRIPTION OF THE PREFERRED EMBODIM~T
: lS Be~ore describing the adjustable power take-off joint in accordance with the invention, it is helpful to review th~ state of the art of electrical power systems and busway power take-off plugs as describ~d within aforementionad U.S. Patent 4,097,103. One such busway system 10 is depicted in Figure 1 and consist~ of a first busway section whic~ includes a plurality af busbars 11 supported within a first busbar housing 12 which are joined to a second busway section which includ2s a plu-rality of busbars 13 within a sacond busbar housing 14D
2S The first and second plurality of busbars are joined together by means of a busway joint 15 which include top and bottom side plates 16, 17 and which are joined together by means of an elongated bolt 18 and Belville ' 2~77$l~
Figure l is a side perspective view of a busway system and busway plug in accordance with the prior art:
Figure 2 is a top perspective view in isometric pro-jection of the busway joint prior to assembly accordiny to the invention having adjustable busbar stabs;
Figure 3A is a top plan view of the busway joint of Figure 2 assembled together according to the tsachings of the invention with the adju table busbar stabs positioned at a minimum distance from the busway joint; and Figure 3B is a top plan view of the busway joint of Figure 3A with the adjustable busbar stabs positioned at a maximum distance from the busway joint.
DESCRIPTION OF THE PREFERRED EMBODIM~T
: lS Be~ore describing the adjustable power take-off joint in accordance with the invention, it is helpful to review th~ state of the art of electrical power systems and busway power take-off plugs as describ~d within aforementionad U.S. Patent 4,097,103. One such busway system 10 is depicted in Figure 1 and consist~ of a first busway section whic~ includes a plurality af busbars 11 supported within a first busbar housing 12 which are joined to a second busway section which includ2s a plu-rality of busbars 13 within a sacond busbar housing 14D
2S The first and second plurality of busbars are joined together by means of a busway joint 15 which include top and bottom side plates 16, 17 and which are joined together by means of an elongated bolt 18 and Belville ' 2~77$l~
washers 19. A plurality of electrically conductive splice plates g electrically connect between the adjoining busbars 11, 13. After positioning the busbar stabs 20 extending from the busway joint 15 within the busbar plug assembly 25 in the power take-o~f busway plug 22, the plate 21 attached to the busway plug is fastened to the busway housings 12, 14 to prevent inadvertent contact with the busbar stabs. The busbar plug assembly 25 includes spring-loade~ contact platas 26 and corresponding angulated terminal stabs 27 that are arranged for electrical connection with a circuit breaker or electric switch (not shown). Electrical access to the interior of the power take-o~f busway plug is made by means of the side opening 24 in the housing 23.
The adjustable power take-o~f joint 28 in accordance with the invention is depicted in Figure 2 between first busbars 11 within first support housing 12 and second busbars 13 within second support housing 14. The adjust-able power take-off joint is similar to the splice joint described in aforementioned U.S. Patent 4,842,533 and contains similar apertured side plates 29, 42 within which are arranged electrically conductive splice plates 31 and similar intervening insulative separation plates 30, 32 that are apertured to receive a ~irst elongated bolt 33. With the busbars 11, 13 positioned within the electrically conductive splice platss the elongated bolt . 33 is inserted within a spring-loaded Belville washer 34, ~:: the aperture 38 in the side plate 29, the corresponding `~ apertures within the separation plates and splice plates ..
`:`
.
--- 20~7~
The adjustable power take-o~f joint 28 in accordance with the invention is depicted in Figure 2 between first busbars 11 within first support housing 12 and second busbars 13 within second support housing 14. The adjust-able power take-off joint is similar to the splice joint described in aforementioned U.S. Patent 4,842,533 and contains similar apertured side plates 29, 42 within which are arranged electrically conductive splice plates 31 and similar intervening insulative separation plates 30, 32 that are apertured to receive a ~irst elongated bolt 33. With the busbars 11, 13 positioned within the electrically conductive splice platss the elongated bolt . 33 is inserted within a spring-loaded Belville washer 34, ~:: the aperture 38 in the side plate 29, the corresponding `~ apertures within the separation plates and splice plates ..
`:`
.
--- 20~7~
as indicated a~ 40, 41, the aperture 39 in the opposite side plate 42, a s~cond Belville washer 34 all of which are fastened together by means of the nut 35. The slotted busway stabs 36, each consisting of an elongated slot 37 formed within one end and an opposite planar end as indicaked at 47 are then interleaved between the corresponding splice plates and separator plates before being attached to the ~djustable power take-off joint by means of a separate elongated bolt 43, separake Belville washers 45 and a separate nu~ 44.
The assembled adjustable power take-o~f joint 28 is depicted in Figure 3A with first busbars 11 wi~hin ~ixst housing 12 electrically connected with second busbars 13 within second housing 14 by means of first elongated bolt 33 and firs~ Belville washer 34. The top insulative separation pla~e 30 electrically isolate~ the busbars from the top apertured side plate 29. The slotted busbar stabs 36 are depicted with second elongated bolt 43 and ~ second Bslville wa~her 45 arranged at the innermost part ; 20 of the elongated slot 37 to depict the shortest distance Dl between the exposed planar end 47 of the slotted busway stab and the edge 28A of the adjustable power take-off busway joint. When a busway power take-off plug, such as that depicted at 22 in Figure 1, is to be connected with the adjustable power take-off joint 28, : the elongated bolt 43 is loasened which allows the slotted busway stabs 3~ to be slidably displaced relative to the edge of the adj~s~able p~wer ~ake-of~ joint and the power take-off plug by guiding the elon~ated slot 37 2~7r~$l~
The assembled adjustable power take-o~f joint 28 is depicted in Figure 3A with first busbars 11 wi~hin ~ixst housing 12 electrically connected with second busbars 13 within second housing 14 by means of first elongated bolt 33 and firs~ Belville washer 34. The top insulative separation pla~e 30 electrically isolate~ the busbars from the top apertured side plate 29. The slotted busbar stabs 36 are depicted with second elongated bolt 43 and ~ second Bslville wa~her 45 arranged at the innermost part ; 20 of the elongated slot 37 to depict the shortest distance Dl between the exposed planar end 47 of the slotted busway stab and the edge 28A of the adjustable power take-off busway joint. When a busway power take-off plug, such as that depicted at 22 in Figure 1, is to be connected with the adjustable power take-off joint 28, : the elongated bolt 43 is loasened which allows the slotted busway stabs 3~ to be slidably displaced relative to the edge of the adj~s~able p~wer ~ake-of~ joint and the power take-off plug by guiding the elon~ated slot 37 2~7r~$l~
along second elongated bolt 43 to change the distance that the planar end 47 of the slotted busway stab 36 extends from the edge of the ad~ustable power take-off joint. This facilitates the inter-connection of the aforementioned busway powex take-off plug with the adjustable power taXe-off joint with fawer parts and simpler operation than with the earlier-discussed prior art design.
The adjustable power take-off joint 28 is depicted in Figure 3B with the slotted busway ~tabs 36 moved to a maximum distance D2 between the planar edge 47 of the busway stabs and that the edge 28A of the adjustable power take-off joint such that second elongated bolt 43 and second Belville washer 45 are close to the end of the elongated slots 37.
It is noted that any intermediate distance between the maximum and minimum extensions of the slo~ted busway stabs 36 be realized by positioning the elongated slots 37 relative to the elongated bolts 43 without having to re-adjust the first elongated bolt 33 and first Belville washer 34 that electrically join the first and second busbars 11, 13 within associated first and second ~upport housings 12, 14.
Having thus described our invention, what we claim as new and desire to sacure by LPtters Patent i~:
The adjustable power take-off joint 28 is depicted in Figure 3B with the slotted busway ~tabs 36 moved to a maximum distance D2 between the planar edge 47 of the busway stabs and that the edge 28A of the adjustable power take-off joint such that second elongated bolt 43 and second Belville washer 45 are close to the end of the elongated slots 37.
It is noted that any intermediate distance between the maximum and minimum extensions of the slo~ted busway stabs 36 be realized by positioning the elongated slots 37 relative to the elongated bolts 43 without having to re-adjust the first elongated bolt 33 and first Belville washer 34 that electrically join the first and second busbars 11, 13 within associated first and second ~upport housings 12, 14.
Having thus described our invention, what we claim as new and desire to sacure by LPtters Patent i~:
Claims (7)
1. A busway power take-off joint comprising:
a pair of opposing metal side plates;
a plurality of interleaved electrically-conductive splice plates and electrically insulative separator plates arranged intermediate said side plates:
a first elongated bolt extending through said splice plates, said separator plates and said side plates;
a plurality of busbar stabs having first slotted ends arranged within said side plates and second planar ends extending a predetermined distance beyond said side plates; and a second elongated bolt extending within said first slotted ends whereby positioning said first slotted ends relative to said second bolt determines said predetermined distance.
a pair of opposing metal side plates;
a plurality of interleaved electrically-conductive splice plates and electrically insulative separator plates arranged intermediate said side plates:
a first elongated bolt extending through said splice plates, said separator plates and said side plates;
a plurality of busbar stabs having first slotted ends arranged within said side plates and second planar ends extending a predetermined distance beyond said side plates; and a second elongated bolt extending within said first slotted ends whereby positioning said first slotted ends relative to said second bolt determines said predetermined distance.
2. The busway joint of claim 1 wherein said first elongated bolt is fastened to said side plates through a first pair of Belville washers.
3. The busway joint of claim 2 wherein said second elongated bolt is fastened to said side plates through a second pair of Belville washers.
4. A method of interconnecting a plurality of busbar conductors together and to the power take-off plug comprising the steps of:
providing a busway joint having a plurality of in-terleaved electrically-conductive splice plates and electrically-insulative separator plates arranged in-termediate a pair of apertured metal end plates;
connecting a plurality of electrical power busbar conductors to opposite sides of said splice plates by means of a first elongated bolt traversing said splice plates, said separator plates and said end plates;
inserting a plurality of busbar stabs terminating in first slotted ends and second planar ends intermediate said splice plates;
positioning said first slotted ends within a second elongated bolt within said end plates; and extending said second planar ends external to said end plates.
providing a busway joint having a plurality of in-terleaved electrically-conductive splice plates and electrically-insulative separator plates arranged in-termediate a pair of apertured metal end plates;
connecting a plurality of electrical power busbar conductors to opposite sides of said splice plates by means of a first elongated bolt traversing said splice plates, said separator plates and said end plates;
inserting a plurality of busbar stabs terminating in first slotted ends and second planar ends intermediate said splice plates;
positioning said first slotted ends within a second elongated bolt within said end plates; and extending said second planar ends external to said end plates.
5. The method of claim 4 including the steps of translating said first slotted ends along said second bolt to provide a first predetermined distance between said planar ends and said end plates.
6. The method of claim 5 including the steps of inserting said planar ends within a busway plug.
7. The invention as defined in any of the preceding claims including any further features of novelty disclosed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83347592A | 1992-02-10 | 1992-02-10 | |
| US833,475 | 1992-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2087764A1 true CA2087764A1 (en) | 1993-08-11 |
Family
ID=25264518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2087764 Abandoned CA2087764A1 (en) | 1992-02-10 | 1993-01-21 | Electric power busway adjustable power take-off-joint |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2087764A1 (en) |
| DE (1) | DE4302783A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051179C (en) * | 1995-10-28 | 2000-04-05 | 金钟-默勒有限公司 | Power feed box |
| ITMI20092135A1 (en) * | 2009-12-02 | 2011-06-03 | Bticino Spa | DEVICE FOR ELECTRIC BAR DISTRIBUTION. |
| US8512057B2 (en) | 2008-11-16 | 2013-08-20 | Siemens Aktiengesellschaft | Device comprising rigid connecting bars for the conducting connection of first to second busbars |
| US9590406B1 (en) | 2016-01-07 | 2017-03-07 | General Electric Company | Busway joint coupling having a splice plate with a longitudinal rib |
| US9590405B1 (en) | 2016-01-07 | 2017-03-07 | General Electric Company | Busway joint coupling having an adjustable assembly for joining two busway sections |
| US9705300B1 (en) | 2016-01-07 | 2017-07-11 | General Electric Company | Electrical busway joint with laminated bracing system |
| US9705299B1 (en) | 2016-01-07 | 2017-07-11 | General Electric Company | Electrical busway joint with external vise braces |
| US9882366B2 (en) | 2016-01-07 | 2018-01-30 | General Electric Company | Electrical busway joint with self-adjusting braces |
| CN108597663A (en) * | 2018-04-16 | 2018-09-28 | 浙江安策电气科技有限公司 | Non junction bus duct core and bus duct and power taking structure |
| CN108666950A (en) * | 2018-03-26 | 2018-10-16 | 湖北睿能电气有限公司 | A kind of convenient data center module bus duct system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008037968A1 (en) * | 2008-08-13 | 2010-02-18 | Siemens Aktiengesellschaft | Busbar device with power taps |
-
1993
- 1993-01-21 CA CA 2087764 patent/CA2087764A1/en not_active Abandoned
- 1993-02-02 DE DE19934302783 patent/DE4302783A1/en not_active Withdrawn
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051179C (en) * | 1995-10-28 | 2000-04-05 | 金钟-默勒有限公司 | Power feed box |
| US8512057B2 (en) | 2008-11-16 | 2013-08-20 | Siemens Aktiengesellschaft | Device comprising rigid connecting bars for the conducting connection of first to second busbars |
| ITMI20092135A1 (en) * | 2009-12-02 | 2011-06-03 | Bticino Spa | DEVICE FOR ELECTRIC BAR DISTRIBUTION. |
| WO2011067647A2 (en) | 2009-12-02 | 2011-06-09 | Bticino S.P.A. | Bus bar power distribution device |
| WO2011067647A3 (en) * | 2009-12-02 | 2011-08-04 | Bticino S.P.A. | Bus bar power distribution device |
| RU2542340C2 (en) * | 2009-12-02 | 2015-02-20 | Бтичино С.П.А. | Electrical distribution device with busbar |
| US9590406B1 (en) | 2016-01-07 | 2017-03-07 | General Electric Company | Busway joint coupling having a splice plate with a longitudinal rib |
| US9590405B1 (en) | 2016-01-07 | 2017-03-07 | General Electric Company | Busway joint coupling having an adjustable assembly for joining two busway sections |
| US9705300B1 (en) | 2016-01-07 | 2017-07-11 | General Electric Company | Electrical busway joint with laminated bracing system |
| US9705299B1 (en) | 2016-01-07 | 2017-07-11 | General Electric Company | Electrical busway joint with external vise braces |
| US9882366B2 (en) | 2016-01-07 | 2018-01-30 | General Electric Company | Electrical busway joint with self-adjusting braces |
| CN108666950A (en) * | 2018-03-26 | 2018-10-16 | 湖北睿能电气有限公司 | A kind of convenient data center module bus duct system |
| CN108597663A (en) * | 2018-04-16 | 2018-09-28 | 浙江安策电气科技有限公司 | Non junction bus duct core and bus duct and power taking structure |
| CN108597663B (en) * | 2018-04-16 | 2024-05-07 | 浙江安策电气科技有限公司 | Non-joint bus duct core body, bus duct and electricity taking structure |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4302783A1 (en) | 1993-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |