PANELIZED LIGHTWEIGHT CONTROL ENCLOSURE
The present invention relates to a panelized lightweight control enclosure, capable of being substantially manufactured before installation for housing power system devices of a power system substation. Specifically, the control enclosure is comprised of a structural frame including a plurality of vertical posts, a base, a plurality of side panels for forming the walls thereof and defining an interior space therein for housing the power system devices, and a roof for covering the interior space. The structural frame engages and provides support for the side panels and roof. To facilitate engagement between the frame, side panels and roof, the control enclosure includes a plurality of tongue-and-groove fittings. As a result, the present invention control enclosure may be constructed at and/or transported in an assembled state to an installation site. The present invention further relates to a method of making a composite material, for the panels of the control enclosure, formulated for weight reduction, strength, and resistance to cracking.
This application claims benefit under 35 U.S.C. §119(e) of U.S. Provisional Application Ser. No. 61/298,147, entitled “Panelized and Lightweight Control Enclosure,” filed on Jan. 25, 2010, naming Rick A. Schulz, Luis Alberto Alfredo D'Acosta Anezia, and Antonio Zaldivar Lelo de Larrea Corregidora as inventors, the complete disclosure thereof being incorporated herein by reference.
TECHNICAL FIELDThis disclosure relates to electric power control and monitoring stations. More particularly, this disclosure relates to outdoor electric power control and monitoring stations and systems for enclosing such.
BACKGROUND OF THE INVENTIONEffective electric power transmission and distribution requires equipment and devices for the control, monitoring, automation and protection of the electric power transmission or distribution systems. Examples of equipment that may be used on electric power transmission and/or distribution systems include switches, circuit breakers, capacitor banks, transformers, conductors, fuses, generators, current transformers (CTs), potential transformers (PTs), and the like. Devices may be in communication with such equipment for the monitoring, control, automation, and/or protection of the electric power system. Examples of these devices include the following: intelligent electronic devices (IEDs) such as protective relays, bay controllers, differential relays, distance relays, synchrophasor measurement units, synchrophasor measurement and control units, communications processors, synchrophasor vector processors, meters, programmable logic controllers, switches, generator relays, transformer relays, faulted circuit indicators, clocks, and the like. Devices may receive information from the equipment and act accordingly, based on the information received. Devices may also send control commands to the equipment. For example, a protective relay may be capable of receiving electric power system information (i.e. switch or breaker status from a switch or breaker, current from a CT, and/or voltage from a PT), process the gathered power system information, make a decision based on the information, and send a control command to the breaker to change status.
Power system substations are sites where several components of the electric power system converge in a single location, such as a yard. For example, a substation may be formed at the interface between an electric power transmission system and an electric power distribution system. The substation may include several step-down transformers where the relatively high-voltage from the transmission system is stepped down to the lower voltage of the distribution system. Substations may further be formed along various points of electric power transmission or distribution systems, such as where several lines of a particular system meet.
Substations often also house several devices for control, monitoring, automation and protection of an electric power transmission or distribution system. Such devices are typically mounted in panels and housed in a free-standing structure such as a building. Substation buildings may include some means of physical security such as locked doors, intruder alarm systems, and the like such that the devices are not easily accessed by unauthorized persons.
Substation buildings are permanent, often bulky, require significant amount of time to build and use large amounts of energy to maintain adequate internal environmental conditions for personnel that may be working therein. Further, substations are often placed in locations away from populated areas and may be difficult to access. Often, the need to access the devices occurs only periodically. As a result, some substation buildings are built and maintained for only a small amount of time that a person requires the benefits of the structure. Construction of such substation buildings requires transport of building materials, personnel, and equipment to the site, time in construction, and the associated costs.
Therefore, it is an object of the present invention to provide portable control enclosures, which may be used to house power system devices and equipment at a substation. Such enclosures may be manufactured, fitted with the appropriate equipment and devices (which may also be tested before the control enclosure is installed), wired, and later stored and/or installed at the appropriate location. It is specifically desirable that components of the portable control enclosure be prefabricated. Collectively, the prefabricated components may comprise a kit for assembling the control enclosure. Such a kit would not require additional construction materials and would be easily transportable. The prefabricated components may be sent to an installation site and easily configured thereon to form a control enclosure. Thus, the present invention control enclosure overcomes the problems associated with traditional, permanent building structures at substations by providing a prefabricated control enclosure.
SUMMARY OF THE INVENTIONThe present invention relates to a panelized lightweight control enclosure, for housing the power system devices of a power system substation, which may be constructed, outfitted, and transported to an installation site in an assembled or unassembled state. Specifically, the control enclosure is comprised of a structural frame including a plurality of vertical posts, a base, a plurality of side panels for forming the walls thereof and defining an interior space therein for housing the power system devices, and a roof for covering the interior space. The structural frame engages and provides support for the side panels and roof. To facilitate engagement between the frame, side panels and roof, the control enclosure includes a plurality of tongue-and-groove fittings. More particularly, the control enclosure includes a plurality of tongue-shaped fittings formed on at least one of the frame, side panel and roof panel, each engaging a corresponding groove-shaped fitting formed on at least one of the frame, side panel and roof panel to form an engagement between one of the frame, side panel and roof panel. It is not required that the control enclosure be constructed at the site of the substation, or other storage site, but rather it may be transported to the site already intact and installed thereon. The present invention further relates to a method of making a composite material, for the panels of the control enclosure, formulated for weight reduction, strength, and resistance to cracking. Moreover, the present invention relates to a panelized control enclosure designed to meet the International Building Code (IBC) Live Load requirement standard for the industry.
The various embodiments of the disclosure will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. It will be readily understood that the components of the disclosed embodiments, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of configurations. Thus, the following detailed description of the embodiments of the systems and methods of the disclosure is not intended to limit the scope of the disclosure, as claimed, but is merely representative of possible embodiments of the disclosure.
In some cases, well-known features, structures or operations are not shown or described in detail. Furthermore, the described features, structures, or operations may be combined in any suitable manner in one or more embodiment. It will also be readily understood that the components of the embodiments as generally described and illustrated in the figures herein could be arranged and designed in a wide variety of different configurations.
As illustrated in FIGS. 1 and 2A-F, the present invention relates to a panelized control enclosure 100 that may be used for enclosing power system devices and equipment at a substation. Specifically, the panelized control enclosure 100 includes a plurality of side panels 102, each engaging each other to form the walls of the enclosure 100, thereby defining an interior space within. Additionally, the control enclosure 100 includes a floor panel 108 and at least one roof panel 106 for protecting the interior space from the environment. At least one side panel 102 may define an aperture for routing a connection from the power system devices and/or equipment housed within the chamber to the power system devices and/or equipment external to the panelized control enclosure 100. External equipment may include the following: switchgear, circuit breakers, conductors, transformers, buses, capacitor banks, reclosers, tap changers, current transformers, potential transformers, grounding mats, Rogowski coils, sensing equipment, and the like.
The control enclosure 100 further includes a structural frame 109 for supporting the side panels 102 and securing the floor 108, roof 106 and side panels 102 to each other. The frame comprises four vertical posts 110 and a base 112. The frame 109 may be constructed of metal beams, such as steel beams.
Each of the above mentioned components of the portable control enclosure may be prefabricated. Collectively, the prefabricated components may comprise a kit for assembling the control enclosure 100 at an installation site. This kit may not require additional construction materials and may be easily transportable. The prefabricated components may be sent to an installation site and easily configured thereon to form a control enclosure.
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In a second embodiment, illustrated in
The tongue-and-groove fittings 104 described above are illustrated in
For instance, as illustrated in
The vertical post 110 may define either a groove or a tongue to facilitate engagement with the side panels through machining. Otherwise, the tongue or groove shape may be constructed to the vertical post 110 via other fittings. Specifically, the fitting 204 of
Furthermore, in the embodiment of
As illustrated in
As described above, the engagement between the side panel 102 and the roof 106 may also include a tongue-and-groove engagement 104. As illustrated in
The fittings may be comprised of 12-gauge, ASTM 1011, HSLA Gr 55 tongue-and-grooved shaped steel. Additionally, the metal fitting pieces may be hot dipped galvanized, complying with ASTM A123/A123M.
In one embodiment, the composite material consists of a novel concrete formula, designed for weight reduction, strength and resistance to cracking. The composite material may be selectively altered to maximize one or more of these attributes. In one embodiment, the composite material may be formed from the ingredients and in the proportions as listed in the following Table:
Moreover, in one embodiment, the composite concrete has compression strength of 2500 psi and density of 100 pcf (lb/ft3). Additionally, the concrete is reinforced with steel reinforcement comprised of wire mesh 6×6-6/6 (complying with ASTM A-185 and ASTM A-496) and with fiber reinforcement comprised of macro-synthetic reinforcing fiber (complying with ASTM C1116 0.26 lb/ft3). The formula includes fiber and wire reinforced concrete with pre-expanded mineral bead, such as Perla™ (manufactured by Fanosa, located in Sinaloa, Mexico). In one embodiment, the concrete consistency regulating reslump admixture is Sikament-100, manufactured by Sika® Corp. USA, located in Lyndhurst, N.J. Additionally, in one embodiment, the abovementioned MS fiber is Sika® Fiber MS, manufactured by Sika® Corp. USA.
As discussed above, the walls may be constructed of a number of pre-formed composite material or metal panels. In a single control enclosure, the panels may be constructed of the same or different material. That is, a single control enclosure may include a combination of metal panels and composite panels, or only metal panels, or only composite panels. The metal panels may be comprised of 12-gauge, ASTM 1011, HSLA Gr 55 tongue-and-grooved shaped steel. Additionally, the metal panels may be hot dipped galvanized, complying with ASTM A123/A123M.
The side panels 102 may comprise one of the following configurations:
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Furthermore, as previously mentioned with respect to in
While this invention has been described with reference to certain illustrative aspects, it will be understood that this description shall not be construed in a limiting sense. Rather, various changes and modifications can be made to the illustrative embodiments without departing from the true spirit, central characteristics and scope of the invention, including those combinations of features that are individually disclosed or claimed herein. Furthermore, it will be appreciated that any such changes and modifications will be recognized by those skilled in the art as an equivalent to one or more elements of the following claims, and shall be covered by such claims to the fullest extent permitted by law.
Claims
1. A portable panelized control enclosure for housing power system devices of a power system substation, said enclosure comprising:
- a structural frame including a plurality of vertical posts and a base;
- a plurality of side panels forming walls of the control enclosure and defining an interior space therein for housing the power system devices, wherein the structural frame engages and provides support for the side panels;
- at least one roof structure for providing a covering for said the interior space, wherein said the frame and side panels engage and provide support for the roof panel;
- a plurality of tongue-shaped fittings formed on at least one of the frame, side panel and roof panels; and
- a plurality of groove-shaped fittings formed on at least one of the frame, side panel, and roof panels each engaging a corresponding tongue-shaped fitting to form an engagement between one of the frame, side panel and roof panel.
2. The portable panelized control enclosure of claim 1, wherein the panels are comprised of a combination of panels constructed of metal and panels constructed of a composite material.
3. The portable panelized control enclosure of claim 1 further including lifting yokes to facilitate transportation thereof.
4. The portable panelized control enclosure of claim 1, wherein at least one of the groove-shaped fittings is in the form of parallel rails affixed to at least one of the frame, side panel and roof panels.
5. The portable panelized control enclosure of claim 1, wherein at least one of the side panels, structural frame and roof panel are prefabricated.
6. The portable panelized control enclosure of claim 2, wherein the strength of the enclosure may be customized by the select combination of metal panels and composite panels.
7. The portable panelized control enclosure of claim 1, wherein at least one of the tongue-shaped fittings includes a pre-formed tongue.
8. The portable panelized control enclosure of claim 1, wherein at least one of the tongue-shaped fittings includes a support element adapted to limit movement of the one of the roof panels with respect to one of the side panels.
9. The portable panelized control enclosure of claim 1, wherein in the plurality of lightweight panels are composed of a composite material comprising:
- about 38 liters of LW coarse aggregate,
- about 38 liters of dust,
- about 9.5 liters of sand,
- about 50 kilograms of cement,
- about 19 liters of water,
- about 9.5 liters of polystyrene particle filler,
- about 400 milliliters of concrete consistency regulating reslump admixture,
- about 200 grams of fiber, and
- about 2 liters of acrylic resin.
10. The portable panelized control enclosure of claim 9 wherein said composite material is selectively altered to have a compression strength of about 2500 psi.
11. The portable panelized control enclosure of claim 9, wherein said composite material is selectively altered to have a density of 100 pcf.
12. The portable panelized control enclosure of claim 9, wherein said composite material is reinforced with steel reinforcement comprised of wire mesh 6×6-6/6 (complying with ASTM A-185 and ASTM A-496) and with fiber reinforcement comprised of macro-synthetic reinforcing fiber (complying with ASTM C1116 0.26 lb/ft3).
13. A panelized control enclosure capable of being substantially manufactured before installation for housing power system devices of a power system substation, said enclosure comprising:
- a structural frame including a plurality of vertical posts and a base;
- a plurality of prefabricated side panels forming walls of the control enclosure and defining an interior space therein for housing the power system devices, wherein the structural frame engages and provides support for the side panels; and
- at least one roof structure for providing a covering for said the interior space, wherein said the frame and side panels engage and provide support for the roof panel.
14. The panelized control enclosure of claim 13, wherein the panels are comprised of a combination of panels constructed of metal and panels constructed of a composite material.
15. The panelized control enclosure of claim 14, wherein the strength of the enclosure may be customized by the select combination of metal panels and composite panels.
16. The panelized control enclosure of claim 13, further including a plurality of tongue-shaped fittings formed on at least one of the frame, side panel and roof panels and a plurality of groove-shaped fittings formed on at least one of the frame, side panel, and roof panels each engaging a corresponding tongue-shaped fitting to form an engagement between one of the frame, side panel and roof panel.
17. The panelized control enclosure of claim 16, wherein at least one of the groove-shaped fittings is in the form of parallel rails affixed to at least one of the frame, side panel and roof panels.
18. The panelized control enclosure of claim 16, wherein at least one of the tongue-shaped fittings includes a pre-formed tongue.
19. The panelized control enclosure of claim 16, wherein at least one of the tongue-shaped fittings includes a support element adapted to limit movement of the one of the roof panels with respect to one of the side panels.
20. The panelized control enclosure of claim 13, wherein in the plurality of lightweight panels are composed of a composite material comprising:
- about 38 liters of LW coarse aggregate,
- about 38 liters of dust,
- about 9.5 liters of sand,
- about 50 kilograms of cement,
- about 19 liters of water,
- about 9.5 liters of polystyrene particle filler,
- about 400 milliliters of concrete consistency regulating reslump admixture,
- about 200 grams of fiber, and
- about 2 liters acrylic resin.
21. The panelized control enclosure of claim 21 wherein said composite material is selectively altered to have a compression strength of about 2500 psi.
22. The panelized control enclosure of claim 21, wherein said composite material is selectively altered to have a density of 100 pcf.
23. The panelized control enclosure of claim 21, wherein said composite material is reinforced with steel reinforcement comprised of wire mesh 6×6-6/6 (complying with ASTM A-185 and ASTM A-496) and with fiber reinforcement comprised of macro-synthetic reinforcing fiber (complying with ASTM C1116 0.26 lb/ft3).
Type: Application
Filed: Jan 24, 2011
Publication Date: Jul 28, 2011
Inventors: Richard A. Schulz (Tega Cay, SC), Luis Alberto Alfredo D'Acosta Anezin (San Luis Potosi), Victor Hugo Barragan Gonzalez (San Luis Potosi), Antonio Zaldivar Lelo de Larrea (Corregidora)
Application Number: 13/012,612
International Classification: E04H 1/00 (20060101); E04C 2/38 (20060101);