ES1320621U - MODULAR TRANSFORMER CENTER (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Modular transformation center, characterized in that its different elements are arranged in two superimposed planes and in four places, cabinets or chambers, which are: 1. Underground chamber made of polyester reinforced with fiberglass and armed (A). Intended to house the power transformer, input/output of ground cables, communication and control, medium and low voltage, and air intake ducts to the lower part of the transformer station. Located below ground level, built using prefabricated panels in polyester reinforced with reinforced and grounded fiberglass, installing an upper frame or base of the emerging metal structure. In its lower part, the adjustable fastening elements for the transformer skates (12), firewall sheets (4) and polyester pit, neoprene strips on transformer skates and polyester pit (6) will be installed. The aforementioned upper frame will have threaded holes to hold the base for an M16 nut, the first interface body (B) will be screwed onto the frame. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

MODULAR TRANSFORMER CENTER

OBJECT OF THE INVENTION

The present invention, Modular Transformation Centre, refers to a metal building in its emerging part and an underground chamber made of polyester reinforced with fiberglass on a reinforced metal frame that configures a lost formwork in its buried part, located on a reinforced concrete slab that rests on a bed of compacted sand and gravel, to house an Electric Power Transformation Centre, for industrial or urban use, which is born as a single Transformation Centre unit and in a Modular form can be folded and/or duplicated according to the present or future needs of the installation, in addition to its exterior being able to adopt an aesthetic appearance that blends with the urban scene. With an aesthetic appearance similar to the current traditional transformation centers in their Industrial version, but with a greater transformative power than the current ones, motivated by its architectural layout and the current and future trend of use of electricity as clean energy, with a great reduction in occupation footprint, improving those used by different electricity distribution companies in the world to provide low voltage power to domestic, commercial and industrial users, and in this case to adapt to multiple needs due to its modular design, a situation that motivates the European Union to regulate energy efficiency and better loss requirements for transformers, as well as the future elimination of highly polluting gases such as sulfur hexafluoride (SF6) widely used in these medium voltage power distribution systems.

FIELD OF INVENTION

There are currently a large number of buildings on the market, whether factory-built, prefabricated in concrete or metal, surface-mounted or underground, or even inside residential buildings, with multiple electrical typologies, and for operation or maintenance with interior or exterior execution, with powers equal to or lower than this invention presented.

Each electricity distribution company defines the preferred Class for its facilities, the most common being Class 10. This means that the transformer, whether connected to the exterior or interior of a dedicated building, only increases At < 10k, prioritizing natural ventilation (ONAN). The general typology and architecture widespread throughout the world, typical buildings place all their transformer substation components on the same plane, thereby limiting their power or requiring the air inlets and outlets to be increased significantly, and therefore the building and/or opting for the use of forced ventilation (ONAF) with the consequent energy expenditure, thus worsening the energy classification of the whole.

Typically, buildings for this industrial application in the world, as previously indicated, are prefabricated in concrete, metal, surface application, underground, etc., but all of them are large and heavy, having to be transported from the factory to the destination by special transport, making their installation difficult in any industrial site, but being totally unviable in urban areas, with the foreseeable future capacities, especially if they are transported, as is usually done, fully installed with all their components inside from the factory. Technological evolution and the prevention of occupational risks, as well as the emergence of new markets motivated by climate change and the demand for low CO2 emissions, are making it possible to boost transformer stations with a new leap in power increases, both for users and distributors, motivated by a greater foreseeable use of systems powered by electricity by the automotive industry and domestic heating and cooling systems or for the National and/or Local Grid to absorb the excesses of local punctual micro-generation, with the aim of abandoning the obsolete energy sources that we currently still use, polluting energies based on hydrocarbons.

With the invention of the Modular Transformation Centre (CTM), the current design and manufacturing of buildings is improved, reducing their occupation footprint and volume per unit, being easy to expand in the future; being of external construction (non-habitable), possible releases of maintenance workers are avoided, due to electrical accidents in buildings confined above ground level or underground, making the Modular Transformation Centre able to be integrated into the urban scene or for industrial use and easy to transport between national and international warehouses in ordinary TIR type vehicles, and to the construction site with the vehicles also usual in this type of facilities, in a truck with an incorporated crane of load <10 Tm.

BACKGROUND OF THE INVENTION

On November 6, 2002, the same author of this improvement presented U200202680, SPECIAL URBAN TRANSFORMATION CENTER, acronym CeTur and later extension to Patent registered in Canada, USA, Mexico, Brazil, Australia, Japan, China and European patent, it was only thought of the standardized power requirements in the Distribution Companies at urban level and that the Transformation Center would configure a Technological Island that would be integrated into the urban scene of the moment. Due to its design and in particular its reduced space, it makes it difficult to use with current and foreseeable future powers, as a Customer Transformation Center, being only applicable to the Transformation Center of the distribution company.

The CTM, as an invention, also improves on U200202680 of November 2002, when the advertising defined was of a static type, installed on doors and light boxes with an aluminium structure. New technologies allow for more efficient industrial application lighting, such as LEDs, and even the placement of LED monitors for outdoor use in the light box spaces, with brightness control and programmed broadcasting from a centre for the creation or reproduction of advertising or informational content of interest to and benefit of the municipality's citizens.

DESCRIPTION OF THE INVENTION

The invention now presented, CTM, improves all aspects of the previous invention, such as:

1) Increased power and size by reducing losses in the new transformers.

2) Faced with growing climate concerns, the European Union is taking decisive action through the new Regulation (EU) 2024/573 on fluorinated gases, aiming to drastically reduce SF6 emissions and drive innovation toward greener alternatives.

January 1, 2026: SF6 is banned in new medium-voltage switchboards (up to 24 kV).

January 1, 2030: SF6 is banned in new medium-voltage distribution boards (24-52 kV).

The CTM invention will accommodate the dimensions and evacuation requirements of incandescent gases and materials.

3) Adjustable height skates, so that the transformer terminals always exceed the zero level.

4) Prefabricated underground chamber, made of fiberglass-reinforced polyester, assembled on site, ensuring watertightness between external vertical and horizontal walls to prevent water ingress or the escape of any spilled transformer oil to the adjacent land.

5) Firebreak between the spilled oil reservoir and the transformer. 6) Possible installation of an automatic free-discharge extinguishing system.

7) Improved ventilation ducts, which evacuate heat from the highest power transformers.

8) In an underground chamber, with separators and windows that direct the flow of cold air to the base of the transformer and allow the sampling of the transformer oil from the base of one of the cabinets installed one to the right and left of the central cabinet.

9) Entry/Exit of Earth, Medium Voltage, Low Voltage and control fiber optic cables, etc.

10) The emerging section is constructed of stainless steel and aluminum panels superimposed internally to attenuate electromagnetic radiation. 11) Modular panels superimposed, externally or not, for static or dynamic advertising with LED TV monitors, which can be integrated into the Urban Scene.

12) Modular construction, independent cabinets for each application.

13) Multiple architectures of one to four CTM units, forming the Transformation Center as independent or centralized.

14) Configuration of Electric Station, Bus Stop for urban or industrial use.

15) Outdoor coverage as an advertising milestone or kiosk, "Technology Island."

16) Greater travel of incandescent gases and/or projected materials due to short circuits in medium voltage cables or switches.

Gases and materials are projected outward through the ventilation inlets/outlets of the building due to the effect of overpressure. The longer and more broken the path, the less damaging its effect. (Figure 3) shows the trajectory of gases and fragments of materials that exit through (19). These have a long journey through the ventilation ducts before exiting to the outside and are attenuated when forced to change direction by the broken construction of the ventilation ducts.

The CTM consists of arranging the different elements on two superimposed planes: on the upper plane above ground level, the elements of periodic manipulation, such as switching and control of medium voltage, low voltage panel and metering cabinet of the electricity distribution company; and on a lower, underground plane, the transformer, fire barrier and pit for any spilled oil.

The CTM contains at least one transformer element (0) comprising a plurality of terminals (2), at least one underground chamber (3) comprising inside it, at least one transformer element (0), characterized in that the chamber functions as a containment vessel, where said containment vessel is buried in a ground, such that the terminals (2) are located above the containment chamber (3) and above the zero reference level of the ground, and where said containment chamber (3) comprises in its upper part a metal perimeter gasket (7) where said chamber is coupled and, at least, one interface cabinet (B) comprising a plurality of lower openings for the entry of fresh air from the outside (8).

This containment chamber (3) is made of fiberglass reinforced polyester on a reinforced metal frame and is watertight, which forms a watertight lost formwork housed at the bottom in a pit (6) made of fiberglass reinforced polyester, has at least one water evacuation conduit (15) and comprises inside at least one fire-resistant sheet (4) located above the maximum level to be reached by the total volume of oil in the transformer element (0), and where said fire-resistant sheet (4) comprises a plurality of through holes. This containment chamber comprises inside at least two beams located parallel to each other and parallel to a plane defined by the minor surfaces of the chamber (3), such that at least one transformer element (0) is coupled to said beams. In addition, this chamber has Medium Voltage inputs/outputs (MT), Low Voltage output [BT], Neutral and Protection ground system input (^) according to the Distribution Company project, as well as a telecommunications input (www).

The aforementioned elements are located in four distinct locations, cabinets or chambers, both for distribution company applications and for the client application, consisting of:

1st Underground Chamber made of fiberglass-reinforced polyester and armed (A) in (Figure 1). - Designed to house the power transformer, input/output grounding, communication and control, medium and low voltage cables, and fresh air intake ducts to the lower part of the transformer station.

2° Stainless Steel and Aluminum Interface, emerging from ground level (B) in (Figure 1). - Designed to mechanically connect the underground chamber with the exterior cabinets, it includes ventilation inlets and access doors to the transformer terminal cover.

3rd Stainless Steel and Aluminum Central Cabinet on ground level (C) in (Figure 2). - Designed to house the control and switching cells, medium voltage input/output, and low voltage output to its control panel.

4° Stainless steel and aluminum cabinets, one to the right and one to the left of the central cabinet (D) in (Figure 2). - Designed to house the low-voltage panels, meters, communications, etc., and one floor-standing cabinet.

This new arrangement improves on that presented in U200202680, by separating according to the voltages of use and functions, in independent cabinets limiting their manipulation by qualification of the maintenance personnel, being all its construction and transport to the work totally modular. It also improves the entry of fresh air to the base of the transformer by means of head and labyrinth ducts from the inlet grilles (8) located above ground level, having at the bottom of the underground chamber a reservoir or pit and outlet for connection to the sewer from the air inlet; these modifications in the ducts thus promote a natural draught and evacuate all the heat through the outlet grilles (9).

The broken shape of the ventilation labyrinths (1) and their arrangement guarantees the attenuation of the noise produced by the transformer and the vibrations are attenuated by placing it on rubber elements, as well as the composition of its walls of the entire emerging set in Stainless Steel and Aluminum attenuate the radiations of the Electromagnetic Field, and finally these ducts also serve to conduct incandescent gases and material released in a possible short circuit in cables or medium voltage switching elements, channeling them to places of minimum affectation, due to the broken arrangement of these labyrinths and because the exits to the outside are very far from the maintenance operators or any passerby during the period in operation of the CTM; highlighting that the possible gas outlets would be located approximately 2.9 meters above the ground and would do so after having traveled approximately 2.1 meters in the opposite direction to the safety valves directed to the CTM pit, part of these gases having been distributed through the fresh air inlets, having had to overcome the inertia of the system supported by the ONAN flow, and after having traveled approximately 3 meters, being released through the fresh air inlet windows, located between 0.2 and 0.5 meters above ground level.

The data mentioned are guaranteed even for maintenance, shutdown or commissioning operations of the installation, with open access doors to the medium voltage switching elements Cells and/or (RMU), since these are framed with deflectors (17) (size according to type and manufacturer) that prevent gases from escaping to the front. Incorporating basic factory interlocks or special ones at the request of the end customer in the inspection or access doors to the transformer. What has been indicated up to now reflects increased and unusual security in buildings for this use worldwide, see (figure 3).

The semi-buried Transformer is installed on the skids between height-adjustable rails (12), thus adapting to any power of the first installation or manufacturing design, ensuring that the active parts, terminal cover (2), are not affected by water runoff or occasional flooding.

The improvement is also extensible to a perforated plate (4) with few small holes that allows the passage to the polyester pit (6), of possible spilled oils and scarce oxygenation acting as a natural firebreak, located between the skates and the pit, occupying the entire surface. The aforementioned reservoir or pit, has sufficient capacity to house the oil of any installable transformer, will be made of Polyester reinforced with fiberglass that guarantees tightness and absence of contamination by leaks to the subsoil. (figure 2).

The Modular Transformation Centre (CTM) is designed in a "modular" manner, composed of four (A, B, C and D) types of rooms:

A) Underground chamber for the Transformer.

B) Interface made of stainless steel and aluminum sheet.

C) Cell cabinet made of stainless steel and aluminum sheet metal.

D) Low-voltage switchgear cabinets also made of sheet steel, stainless steel, and aluminum.

Their dimensions and weights will be adapted to conventional TIR (Transports Internationaux Routiers) type transports; they can also be transported to the site from the local warehouse using an urban-maneuvering open-bed truck/crane.

The cabinets will be constructed of stainless steel and aluminum sheet metal, overlapping the interior, cut and folded, and assembled in the factory using a riveting machine and minimal TIG welding. On site, the different compartments (A, B, C, and D) are quickly assembled with stainless steel screws. CTM represents a novelty in its manufacturing, assembly, and installation, and improves its national and international transport (Figure 9).

A) Underground Transformer Chamber. - Located below ground level, built using prefabricated panels in reinforced polyester with reinforced and grounded fiberglass, composed of a floor and four assembled sides and their joints waterproofed on site with a strip of fiberglass Roving applying polyester resin and catalyst with a roller, installing an upper frame or base of the emerging metal structure, with oval screws in the highest area in line with "ground level", leveling the entire system from there. In its lower part, the adjustable fastening elements for the transformer skids (12) will be installed (figure 2), fireproof sheets (4) and polyester pit, neoprene strips on transformer skids and polyester pit (6) for the collection of possible spilled oils. The aforementioned upper frame will have threaded holes to hold the base for an M16 nut, the first interface body (B) will be screwed onto the frame (figure 1).

B) Interface structure and access to the Transformer terminal cover. - Lower part of the central emerging body of each unit, each side starts with a rectangular structure made of stainless steel sheet in the shape of (C) with the face open to the interior, joined together with screws and by means of Serbloc Inox rivets. and / or screws, and closing by means of stainless steel and aluminum sheets previously bent at an angle to be riveted, repeating the operation until reaching the desired height. The aforementioned internal structure stiffens the assembly, and provides it with access and inspection door frames for the Transformer and fresh air inlet vents for ventilation (8) with mosquito net, formed by inverted V / A shaped slats (8), two front doors with ground connection and retention (11), on frames with a neoprene gasket to increase the tightness, these doors will give access to the transformer terminal board (2). The entire prefabricated assembly is installed on site on the chamber constructed of polyester and leveled with zero level, this Interface emerging to place the Cell Cabinet (C) on it.

C) Switching Cabinet or cells. - Upper part of the central body of each unit, installed and screwed with 4 screws on the structure (B), and without bottom, that is, communicated with the central part of the buried polyester Chamber through the separation between the right and left ventilation inlets. The switching units will be housed in it, the aforementioned cabinet will have the ventilation outlets (9) at the top crowned by a flat roof superimposed in the form of a drip and at the indicated height windows for the exit of low voltage cables in the direction of the upper part of the Low Voltage Panel (21). On the front, a double swing door (10) with its corresponding retainers and ground connections, and with a handle and master key lock for the property, once these have been executed, they will give a view of the front of the cells framed by deflectors (17) that prevent the exit of gases to the front in the event of a short circuit in the switches or cable box, also having access in its lower part to the basic interlocking bolts for the transformer doors, being able to install interlocking with a special key at the request of the client, for its installation on site, eyebolts (16) on the flat roof for its lifting with a crane.

D) Low Voltage Switchboard Cabinets. - Installed at the top on the shortest side of the rectangle, with a practical floor for the passage of output Low Voltage cables and/or for taking transformer oil samples, above the ventilation air inlets, they will have swing access doors (13) with retainers and earth connections; for the Distribution Company version, entry/exit through the practical vents from the inside that allow access and rapid connection to the LV Switchboard of the voltage from an emergency Generator Set to guarantee the supply.

From what has been stated so far it is clear that the CTM invention, the result of experience in operating units, represents many improvements to the U200202680, in terms of novelty, inventive activity and industrial application, and also easy reuse of the material used at the end of its useful life as a transformation centre, having primarily used Stainless Steel and riveted Aluminium, and with respect to the aesthetic finishing material for this model or that used in the external casing, anodised or lacquered aluminium and tempered or laminated glass will be used in places where advertising is disseminated or for citizen communication, thus following the criteria already established.

The modular construction of the invention of independent cabinets per application, generates multiple architectures of one to four independent or centralized transformation centers (figures 5 and 6), enabling spaces for other services, such as Bus Stop (figure 7 and 8) with all the inherent and updated services such as industrial or urban Electrolinera, such as high power converters for Ultra Fast Chargers, public Wi-Fi systems for public transport users, information panels of services and expected delay times in line, banks, etc.

DESCRIPTION OF DRAWINGS

For a better understanding of the invention, the following figures are included:

Figure 1 - Shows a view of the Plan (Fig. 1.1), Elevation (Fig. 1.2, Fig. 1.4) and Profile (Fig. 1.3) of the buried polyester Chamber, compartment (A) and the interface (B) located above the Chamber with example transformer.

Figure 2 - Shows a view of the Total Elevation (Fig. 2.1), the Total Profile (Fig. 2.2), the Plan (Fig. 2.3), and a seen Elevation (Fig. 2.4) of the modular transformation center (CTM) type distribution company or client, with an example of a Medium Voltage Cells, Transformer, Low Voltage Panel, Measurement Panel and insulating bench.

Figure 3 - Shows a full elevation view of the reaction to the short circuit in each CTM unit, with arrows indicating the direction of the fire and loose materials.

Figure 4 - Shows a view of the Total Elevation (Fig. 4.1), the Elevation seen (Fig. 4.2) and the Plan (Fig. 4.3), seen with a second aesthetic CeTur-CTM envelope as a Kiosk or Technology Island.

Figure 5- Shows a view of the Plant, Total Elevation (Fig. 5.1) Seen Elevation (Fig. 5.2) and Plant (Fig. 5.3) of 2 CTM installed in line, double function.

Figure 6- Shows a view of the Profile seen (Fig. 6.1) of 2 CTM+ 2CTM, with a duplicate function and the Plan (Fig. 6.2), double functions attached to the rear.

Figure 7 - Shows a profile view (Fig. 7.1) and plan view (Fig. 7.2) of two separate/independent centers, joined by a roof that shelters 6 converter cabinets for ultra-fast charging of electric vehicles and space with benches (18) for waiting and shelter at 2 bus stops.

Figure 8 - Shows a view of a plant with 4 transformation centers with another configuration, where 4 bus stops and a large waiting space without shelter are generated.

Figure 9 - Shows an Elevation (Fig. 9.1) and Plan (Fig. 9.2) view of the trailer stowage of a standard Mega trailer of two-module enclosures, without switchgear.

And the reference signs used are the following:

The (0) is the transformer.

The (1) are the ducts, separators and windows that lead the flow of cold air to the base of the transformer and subsequent exit (figure 2).

The (2) is the transformer terminal cover, where the following are located: manual and vacuum regulation switch, plug-in MV cover passages, LV bar passages, thermometer and/or DGPT relay (gas, pressure and temperature detector), and lifting eyebolts (figure 2).

The (3) is the underground chamber set made of fiberglass reinforced polyester with grounded and modular reinforcement (figure 1).

The (4) is the perforated plate located between the pit and transformer (firewall) (figure 2).

The (5) is the filling of the excavation (figure 2).

(6) is the collection pit for any spilled oil from the transformer (figure 2).

The (7) is the perimeter weatherstrip for adaptation to the terrain (figure 2).

(8) are the fresh air intake grilles from outside the CTM (figure 2). (9) are the air outlet grilles to the outside, which evacuate the heat produced by the transformer (figure 2).

The (10) are the access doors to Medium Voltage Cells (figure 2).

The (11) are the access doors to the Transformer, terminals, voltage changer, thermometer, etc. (figure 2).

The (12) are the height-adjustable skates joined by beams for the transformer seat (figure 2).

The (13) is the side door for access to the Low Voltage, Measurement, etc. Panel (figure 2).

The (14) is the Mupi and/or monitor superimposed on the front and side doors. (Figure 2).

The (15) is the connection to the sewer for runoff water (figure 2).

The (16) is the detail of the eyebolt on a flat and superimposed roof (figure 2).

The (17) location of the deflectors (figure 3) that frame the front of the Medium Voltage Cells.

The (18) are the benches in the bus stop model (figures 7 and 8)

The (19) usual location of the safety valves (figure 3) The (20) is the second aesthetic enclosure type kiosk or technological island (figure 4).

The (21) passage of low voltage cables from the cabinet (C) to cabinets (D). (Figure 2). The (22) is the detail of the drip (Figure 2)

The (MT) is the input/output of Medium Voltage cables. (Figure 1).

The [BT] is the low voltage cable output (figure 1).

The (<w w w>) is the input/output of communication cables (figure 1).

The (=^ ) is the safety and operational ground input (figure 1).

The (A) is the underground chamber made with prefabricated panels of fiberglass reinforced polyester and assembled (figure 1).

The (B) is the Interface that connects the underground chamber with the emerging cabinets (figure 1).

The (C) is the central cabinet for the Medium Voltage input and output cells and Low Voltage output (figure 2).

(D) is the Low Voltage Switchboard Cabinet set (figure 2).

PREFERRED IMPLEMENTATION METHOD

The construction of all cabinets and emerging metal parts will be made of Stainless Steel, as indicated in section B) and reinforced with overlapping Aluminum panels to mitigate electromagnetic radiation.

The invention, a Modular Transformer Center, being an enclosure for electrical equipment intended for the transformation of distribution voltage to domestic or industrial consumption voltage, is characterized by being designed to accept Transformers and Cells standardized in the EU and many other countries with our requirements and equivalent regulations. This situation motivates the Modular spirit again, expanding this functionality of the invention, with the assemblies being built and transportable with ordinary means (Mega Trailer) from the factory to the warehouse of the product distributor in the destination country, the four/five sides of each metallic or polyester assembly of a "modular assembly", with assembly at the destination, saving space and weight in transport and adapting to electrical equipment manufactured in Spain and/or to continental European regulations.

For the installation of the CTM on site, an excavation must be made for the reinforced and armed polyester structure, prefabricated and modular (the buried Chamber (A)) placing the slab at the bottom on a bed of leveled and compacted gravel, prior to the execution of the necessary electrical Earthing System in accordance with the standard project of the distribution company in the area, assisted by the crane of the truck that transports the slab and the 4 sides to the site, they will be unloaded and placed assembled using the metal fittings that guarantee the continuity of the earths of the reinforcement meshes, at the appropriate depth and in the situation indicated by the site manager, finally we will cover the joints with a strip of fiberglass Roving applying polyester resin and catalyst with a roller and we will ensure the tightness of the earth input pipes, medium voltage inputs / outputs, low voltage outputs, as well as communications. For the backfilling of the excavation we will apply gravel with diameters of approx. 2 cm, compacted and above, at the appropriate height, tape indicating live pipes. The emerging metal parts of the CTM will be bolted to the structure of the Chamber (A) with the assembly B) Interface below in assembly C) Switchgear Cabinet or cells with their corresponding Low Voltage Cabinets D) installed as a backpack.

Having thus completed the installation of the CTM enclosure, the electrical installation of the CTM's medium and low voltage switchgear will then begin.

In the CTM-Bus Stop versions, the installation of the CTM is identical to that defined above, adding a roof to the CTM sets and benches (18) of the waiting part, as well as the metal structure to place the high-power converters for Ultra Fast Chargers with the configurations of (figures 7 and 8).

The CTM due to its modular construction, taking a first and only module, this can also be covered by a second aesthetic envelope as a Kiosk or Technology Island (20) with the final name of CeTur-CTM, see (figure 4). Its installation is the work of the internal part, identical to the one previously defined and the external aesthetic part is supported on a base bolted to the concrete structure, on this 4 columns are bolted and braced with an upper counter-base on which the elliptical polyester roof is secured with a lower part drilled for the evacuation of the heat produced by the transformer.

It will have two front and rear doors, the first sliding with hidden guides and the second fixed. Above these, each hinged door will have a light box for static advertising and/or space for an outdoor LED TV monitor for dynamic advertising. The monitor will have an upward-opening hinge at the top. At the front, the doors will be hinged with their corresponding retainers, and the light box or signage change will be performed from the inside, as will any operation or intervention on the outdoor LED TV monitors.

In terms of transport, each Mega Trailer can carry two complete units of the type (Figure 2) or one of the type (Figure 7), without switchgear, unlike traditional compact or modular prefabricated concrete buildings, which exceed the weights of Mega Trailer transports, limited to a payload of 24 Tm and a height of 3 metres, which is why special transport systems with gondola-type platforms and open boxes must be used in order not to exceed the minimum free height or clearance for European roads. However, due to the Modular design of the CTM, two units can be transported in a Mega Trailer due to its weight and dimensions, as shown in Figure 9.

Claims (10)

1.- Modular transformation center, characterized because its different elements are arranged in two superimposed planes and in four places, cabinets or chambers, which are: 1° Underground chamber made of fiberglass reinforced polyester and armed (A). Intended to house the power transformer, input/output of grounding, communication and control cables, medium and low voltage, and air inlet ducts to the lower part of the transformer station. Located below ground level, built using prefabricated panels in reinforced polyester with reinforced and grounded fiberglass, installing an upper frame or base of the emerging metal structure. In its lower part, the adjustable fastening elements for the transformer skates (12), firewall sheets (4) and polyester pit, neoprene strips on transformer skates and polyester pit (6) will be installed. The aforementioned upper frame will have threaded holes to hold the base for an M16 nut, the first interface body (B) will be screwed onto the frame. 2° Stainless Steel and Aluminum Interface, emerging from ground level (B). Intended to mechanically connect the underground chamber with the exterior cabinets, it incorporates ventilation inlets and access doors to the transformer terminal cover. It is the lower part of the central emerging body of each unit. Each face starts with a rectangular structure made of stainless steel sheet in the shape of (C) with the face open to the interior. The aforementioned internal structure is provided with access and inspection door frames for the Transformer and air inlet vents (8) with mosquito nets, formed by inverted V/A shaped slats (8), two front doors with ground connection and retention (11), on frames with neoprene gasket. These doors will give access to the transformer terminal board (2). 3rd Central Cabinet made of Stainless Steel and Aluminum on ground level (C). Designed to house the control and switching cells, the Medium Voltage input/output and the Low Voltage output to its control panel. It is the upper part of the central body of each unit, installed on the structure (B) and without a bottom, connected to the central part of the buried polyester chamber through the separation between the right and left ventilation inlets. It will house the switching units and have the ventilation outlets (9) at the top, crowned by a flat roof superimposed in the form of a drip and windows for the exit of low voltage cables towards the upper part of the Low Voltage Panel (21). On the front, a double swing door (10) with its corresponding retainers and ground connections. 4° Stainless Steel and Aluminum cabinets installed one to the right and one to the left of the central cabinet (D). Intended to house the Low Voltage, Meters, Communication panels. Installed at the top on the shortest side of the rectangle, with a practical floor, for the passage of Low Voltage output cables and/or for taking transformer oil samples, above the air inlets for ventilation, they will have swing access doors (13) with retainers and ground connections. 2.- Modular transformation center, according to the previous claim, characterized in that the element (A) contains at least one underground chamber (3) comprising inside it, at least one transformer element (0), characterized in that the chamber functions as a containment vessel, where said containment vessel is buried in a ground, such that the terminals (2) are located above the containment chamber (3) and above the zero reference level of the ground, and where said containment chamber (3) comprises in its upper part a metallic perimeter gasket (7) where said chamber is coupled and, at least, one interface cabinet (B) comprising a plurality of lower openings for the entry of fresh air from the outside (8); This containment chamber (3) is made of fiberglass reinforced polyester on a reinforced metal frame and is watertight, which forms a watertight lost formwork housed at the bottom a pit (6) of fiberglass reinforced polyester, has at least one water evacuation conduit (15) and comprises inside at least one fire-resistant sheet (4) located above the maximum level to be reached by the total volume of oil in the transformer element (0), and where said fire-resistant sheet (4) comprises a plurality of through holes. This containment chamber comprises inside at least two stringers located parallel to each other and parallel to a plane defined by the smaller surfaces of the chamber (3), such that at least one transformer element (0) is coupled to said stringers. In addition, this chamber has Medium Voltage inputs/outputs (MT), Low Voltage output [BT], Neutral and Protection ground system input (^) according to the Distribution Company project, as well as a telecommunications input (www). 3.- Modular Transformation Center, according to the previous claims, characterized in that the central cabinet (C) comprises a plurality of air inlet ventilation grilles (8), it also comprises at least one upper double front door located in the center that gives access to the Medium Voltage switching cells, in the lower part (11) and another also double and frontal in the upper part (10), which give access, the lower one to the transformer terminals; this cabinet supports and communicates with two backpack cabinets to the left and right of it with at least one swing door (13) at 90 ° and 180 ° from the doors (10) and at least one ventilation inlet and outlet (8 and 9) also 90 ° and 180 ° from the front ones; over the central cabinet and its two backpack cabinets it is closed with a flat roof with a 90 ° rim in the form of a drip. 4. - Modular Transformation Center, according to the previous claims, characterized in that the construction of all emerging elements will be made with stainless steel and aluminum superimposed on the inside. 5. - Modular Transformation Center, according to the previous claims, characterized in that the ventilation ducts are long and broken. 6. - Modular Transformation Center, according to the preceding claims, characterized in that a LED monitor (14) for static or dynamic advertising can be installed on the upper front and side doors; these monitors will have an upward opening hinged at the top. 7. - Modular Transformation Center, according to the previous claims, characterized by having at least one cable passage (21) between the cabinet (C) and the cabinets (D). 8. - Modular Transformation Center, according to the previous claims, characterized in that it can also be covered by a second aesthetic envelope comprising a sliding door and several swing or fixed doors and a plurality of columns anchored to the base of said chamber (A), at least one internal cabinet, an interface (B), a central internal cabinet (C), and two lateral internal cabinets (D) and an elliptical superimposed roof with an overhang and lower ventilation outlets. 9. - Modular Transformation Center, according to the previous claims, characterized in that two units can be placed in line. 10. - Modular Transformation Center, according to the previous claims, characterized in that two units can be transported in a Mega trailer.