WO2003107500A2 - Field convertible tap-off unit - Google Patents
Field convertible tap-off unit Download PDFInfo
- Publication number
- WO2003107500A2 WO2003107500A2 PCT/US2003/018981 US0318981W WO03107500A2 WO 2003107500 A2 WO2003107500 A2 WO 2003107500A2 US 0318981 W US0318981 W US 0318981W WO 03107500 A2 WO03107500 A2 WO 03107500A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrical
- configurable
- base
- function
- busway
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2425—Structural association with built-in components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
-
- 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
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/08—Connection boxes therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2475—Means facilitating correct wiring, e.g. marking plates, identification tags
Definitions
- the present invention relates to the field of electrical distribution, and particularly to a busway tap-off unit having electrical phase terminals and field convertible additional terminals.
- Figure 1 illustrates a busway tap-off unit with a plug-in base manufactured in accordance with the present invention.
- Figure 2 is an isometric top view of the plug-in base of Figure 1.
- Figure 3 illustrates a selection of labels for use with the convertible tap- off unit.
- a typical busway electrical distribution system is provided with a number of electrically insulated electrical conductors enclosed within a housing.
- the tap-off unit 10 provides a means for accessing the enclosed electrical conductors such that electrical equipment can be connected to the busway power system.
- a typical power system might include three AC phase conductors and an equipment ground provided by the busway housing.
- a neutral conductor or a secondary (isolated) ground conductor or both might be required.
- Some power systems require a neutral with higher current carrying capacity.
- a DC power source might be required in addition to the three phase AC power.
- the plug- in base assembly 14 of the present invention permits the installer to configure one tap-off unit 10 for use with any of the power systems described above or some other specialized power system requirement when the busway electrical distribution system being connected to includes conductors for that application.
- FIG. 2 illustrates the top of the convertible plug-in base assembly 14 of the present invention.
- the plug-in base 14 made from an electrically insulating material, includes an AC phase termination side 22, where three load base terminals 26 (only two shown) are provided for connecting to any of the various load bases 18, and a configurable side 30 where a first configurable conductor terminal 34 and a second configurable conductor terminal 38 are provided such that the installer can configure the tap-off unit 10 to the power system on which it is being installed.
- the plug-in base 14 provides support and electrical separation for the terminals 26, 34 and 38. Each terminal 26, 34 and 38 is electrically connected to one of the electrical conductors in the busway electrical distribution system by a plug-in jaw assembly 42.
- Each plug-in jaw assembly 42 includes a jaw 46, which engages the electrical conductor and a stab 50, which passes through an opening 54 in the plug-in base 14.
- the stab 50 is electrically connected to the load base terminal 26.
- a shaped recess 58 is integrally formed in the plug-in base 14 at each of the three load base terminals 26.
- the stab 50 and load base terminal 26 can be configured as one part, thereby eliminating one electrical connection.
- the shape of the recess 58 coincides with that of a bolt head or nut 62 used in making the electrical connection between the load base terminal 26 and the load base bus 66 ( Figure 1) such that the bolt head or nut 62 can be received therein and prevented from rotating.
- the bolts or nuts 62 can be an insert molded into the plug-in base 14, thereby making connections easier and eliminating loose parts which could be easily lost.
- Configuration of the tap-off unit 10 is accomplished by first determining if electrical conductors other than the three AC phase conductors are present in the busway device on which the tap-off unit 10 will be installed. If no additional electrical conductors are present in the busway device, an equipment ground conductor can be connected to the equipment ground lug 70 ( Figure 1) which is attached to the enclosure of the tap-off unit 10 and provided with an electrical connection with the busway housing. If additional electrical conductors are present in the busway device, the electrical function of each must be determined. A label 74 indicating that electrical function can then be placed adjacent to one or both of the first and second configurable terminals, 34 and 38, respectively.
- a label sheet 78 as shown in Figure 3, including labels for the most commonly expected electrical functions 82 and blank labels 86 for special functions can be provided with the tap-off unit 10. If both first and second configurable terminals, 34 and 38, respectively, have the same electrical function, a jumper 90 connecting the terminals 34 and 38 can be installed. The jumper 90 is electrically connected to both terminals 34 and 38 by binding screws 94. The final step in configuring the tap-off unit 10 is selecting and installing the desired load base 18, if it has not been provided with the tap-off unit 10.
Landscapes
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA04012668A MXPA04012668A (en) | 2002-06-14 | 2003-06-13 | Field convertible tap-off unit. |
CA2489538A CA2489538C (en) | 2002-06-14 | 2003-06-13 | Field convertible tap-off unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/172,272 | 2002-06-14 | ||
US17227202 | 2002-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003107500A2 true WO2003107500A2 (en) | 2003-12-24 |
WO2003107500A3 WO2003107500A3 (en) | 2004-12-23 |
Family
ID=31946220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/018981 WO2003107500A2 (en) | 2002-06-14 | 2003-06-13 | Field convertible tap-off unit |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2003107500A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2458300A3 (en) * | 2010-11-19 | 2016-05-25 | BSH Hausgeräte GmbH | Water heater with an earthing device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1821754U (en) * | 1960-07-05 | 1960-11-17 | Siemens Ag | INTERMEDIATE BOX FOR INSERTION BETWEEN BUSBAR BOXES. |
US3323021A (en) * | 1965-03-08 | 1967-05-30 | Square D Co | Combination terminal block and electrical component assembly |
US3339009A (en) * | 1965-02-23 | 1967-08-29 | Ite Circuit Breaker Ltd | Bus duct with removable joint stack |
US3744002A (en) * | 1972-06-30 | 1973-07-03 | Westinghouse Electric Corp | Bus duct with plug-in unit for closely spaced bus bars |
DE4121639A1 (en) * | 1990-07-05 | 1992-01-16 | Dorma Glas Gmbh | Adaptor unit for power supply rail - has pins engaging with contact bushes to provide bridging action |
-
2003
- 2003-06-13 WO PCT/US2003/018981 patent/WO2003107500A2/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1821754U (en) * | 1960-07-05 | 1960-11-17 | Siemens Ag | INTERMEDIATE BOX FOR INSERTION BETWEEN BUSBAR BOXES. |
US3339009A (en) * | 1965-02-23 | 1967-08-29 | Ite Circuit Breaker Ltd | Bus duct with removable joint stack |
US3323021A (en) * | 1965-03-08 | 1967-05-30 | Square D Co | Combination terminal block and electrical component assembly |
US3744002A (en) * | 1972-06-30 | 1973-07-03 | Westinghouse Electric Corp | Bus duct with plug-in unit for closely spaced bus bars |
DE4121639A1 (en) * | 1990-07-05 | 1992-01-16 | Dorma Glas Gmbh | Adaptor unit for power supply rail - has pins engaging with contact bushes to provide bridging action |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2458300A3 (en) * | 2010-11-19 | 2016-05-25 | BSH Hausgeräte GmbH | Water heater with an earthing device |
Also Published As
Publication number | Publication date |
---|---|
WO2003107500A3 (en) | 2004-12-23 |
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