WO2021146759A1 - Sous-station à colonne unique - Google Patents

Sous-station à colonne unique Download PDF

Info

Publication number
WO2021146759A1
WO2021146759A1 PCT/VN2021/000001 VN2021000001W WO2021146759A1 WO 2021146759 A1 WO2021146759 A1 WO 2021146759A1 VN 2021000001 W VN2021000001 W VN 2021000001W WO 2021146759 A1 WO2021146759 A1 WO 2021146759A1
Authority
WO
WIPO (PCT)
Prior art keywords
supporting structure
substation
pillar
transformer
voltage
Prior art date
Application number
PCT/VN2021/000001
Other languages
English (en)
Inventor
Viet Thong Ho
Original Assignee
Viet Thong Ho
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Viet Thong Ho filed Critical Viet Thong Ho
Publication of WO2021146759A1 publication Critical patent/WO2021146759A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B7/00—Enclosed substations, e.g. compact substations
    • H02B7/06—Distribution substations, e.g. for urban network
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type

Definitions

  • This invention concerns a type of distribution substation where the transformer is placed on a supporting structure, the substation's medium-voltage and low-voltage equipments are located in the supporting structure of the transformer.
  • the distribution transformer substation is an electrical work used to convert electrical energy from medium-voltage to low-voltage for the purpose of supplying electricity power to serve the consumption of daily life and production.
  • a known distribution transformer substation includes three assembly of electrical equipment:
  • - transformer wich has the function of converting power between medium and low voltage levels, including transformers placed in an enclosure for outdoor insulation and installation, and Electrical connection to the medium voltage terminal and low voltage terminal for external electrical connection;
  • - medium-voltage assembly which protects the medium-voltage side of the substation, includes at least one or more medium-voltage switches combined with medium-voltage protective devices, including connections and accessories;
  • - low-voltage assembly which protects the low-voltage side of the substation, includes at least one or more low-voltage switches combined with low-voltage protective devices, including connections, accessories.
  • the mentioned medium and low-voltage assemblies may also include additional components: measuring equipment; Device Drivers; cover; shield to prevent direct contact with live part; Rack structures.
  • Closed transformer substation means a substation with electrical equipment in a common enclosure, for example: a rooms substation with a cover is a house and a box-type substation with metal cover;
  • Open transformer substation is a substation without cover to cover all electrical equipments, and the live part between phases is insulated trom each other and from supporting structures by distance in air, for example: pole-mounted substation with all electrical equipments are located on two concrete poles.
  • all mentioned known types of transformer stations have the same characteristics, namely: the electrical equipments of the substation are placed in a common enclosure or create a safety space to protect, for example: rooms or house is the cover of the room-type substation; and the metal box cover of the box-type substation; or through the regulation of the safety space of the pole mounted substation to prevent direct contact with the live part.
  • the urban areas lack the area and space to install new transformer substations. Both the large installed area and the large occupancy space cause all known transformer substation types to be unselected.
  • one-pillar substations Compared with the known types of substations, one-pillar substations have distinct characteristics: The transformer is placed on the pillar and does no casing to cover all equipment of the one-pillar substation. Furthermore, the placement of the transformer is heap up on the low- voltage assembly. All of the stated features will help reduce the usable area of a one-pillar substation.
  • the one-pillar substation occupies an area of only about 2 m2, usually located in the walkways on the sidewalks, this is the remaining land fund in the urban areas used for grid improvement.
  • the one-pillar substation has the following characteristics: a transformer on the supporting structure and the low-voltage assembly installed in this supporting structure; and the medium-voltage assembly is located independent of the transformer position.
  • the reduction of the occupancy area of a one-pillar substation is due to the application of two solutions.
  • the first solution is to heap up two electrical equipment together for reducing the area.
  • the second solution is protection for each electrical equipment to reject the area that still exists between the equipments, and there isn't a common space to protect for all electrical equipment.
  • the way to heap up two electrical equipment together for reducing the area is also outlined in the patented engineering solutions of Europe and China.
  • Patent number EP0878808A2 published by Europe on August 2, 2000
  • Patent No. CN2753024Y published by China on January 18, 2006.
  • the mentioned European and Chinese substation solutions belong to the categories “Rooms-type substations” and “box-type substations", because the electrical equipment of all types of substations (including: medium-voltage assemblies; transformer; low-voltage assemblies) are arranged in the rooms or metal boxes.
  • the transformer shall be placed at a height of at least 4,0 m from the conductive part to the ground. With an average transformer height of about 1.2 meters and a foundation height of about 0.4 meters, so the required the height of transformer support have to higher than 2.4 meters. That is hindering an attempt to reduce the height of the substation.
  • the low-voltage assembly is arranged at a height of about 2 meters, so it is difficult to install and operate;
  • the low- voltage assembly is a type of device that needs to be operated a lot, but it is located at a height higher than the operator's head. In order to operate, it is necessary to have a ladder, both inconvenient and unsafe;
  • Midium- voltage and low-voltage equipment of the substation is located in one compartment, if a fault occurs in one part, it will spread and affect other parts.
  • the structure size will be larger than in the case of splitting a supporting structure into two smaller structures, so it will more difficult to process. Therefore, only large-scale producer can respond, it is reducing the number of producer that can participate, reducing competitiveness and increasing costs. Further, In terms of transporting from the production facility to the site where the substation is installed, the large structures are more difficult to transport, and transportation costs will be higher.
  • the first purpose of the present invention is to propose a new type of one-pillar substation reduced in size compared to known types of one-pillar substations.
  • the second purpose of the invention is to propose that the one-pillar substation is WO 2021/146759 , . , , .PCT/VN2021/000001 easier to fabricate, transport, and install than the known one-pillar substations.
  • the third purpose of the invention was to propose a one-pillar substation that was easy to test and easy to operate.
  • Another purpose of the invention is to propose a one-pillar substation with a low production and installation cost.
  • this invention proposes the substation consisting of three assemblies of electrical equipment: medium voltage assembly, transformer and low voltage assembly. All three assemblies of electrical equipment are installed with functional integration structure, this structure is both the supporting pillar of the transformer and the outer shell of the medium and low voltage assemblies.
  • the space within the functional integration structure can be a common space for the mid-voltage and low-voltage assemblies, or can be divided into two separate spaces next to each other.
  • the mid-voltage and low-voltage assemblies are also arranged with equal height for easier operation.
  • both stated assemblies are arranged in accordance with the operating conditions at the base of the substation and do not require an additional operating shelf.
  • the medium and low voltage assemblies are arranged in the supporting structure of the transformer so that both assemblies are of equal height and they can be operated from outside the supporting structure of the transformer, which is proposals of the known inventions, but the height of the supporting structure of the transformer proposed under this invention is less than 2.4 meters, which is the height of the supporting structure of the transformer being applied to the known inventions.
  • This invention proposes a new type of substation and proves the one-pillar substation does not belong to the type of pole-mounted substation - as is generally understood by the electricity distribution companies and suppliers in Vietnam, therefore, they applied the regulation for the installation of transformers "at a height of at least 4.0 m from the conductive part to the ground”.
  • the supporting pillar of the transformer under this invention will be proposed with different heights - namely: 2.25 meters - 2.20 meters - 2.15 meters...- and 1.60 meters, of which, each level decreases by 0.05 meters from the nearest higher level.
  • the stated structure is a hollow support surrounded by four side walls, of which there are two side walls, for which most or all of their surfaces are clearances covered by removable cover. Each clearance is corresponding to a assembly of medium- voltage or low-voltage. Ideally, the two clearances mentioned are facing each other.
  • this invention proposes the supporting structure including structural sections are smaller and made of sheet steel. Stated structural sections can be welded together to form a larger and stronger structure, or may be bolted together for easier machining, or may be combined together by welding and bolting. The assembly of structural parts can be done at the factory, or at the installation site to reduce the size of the structure to be transported.
  • the third purpose of the invention (easy to test and easy to operate) will naturally be achieved.
  • This invention also proposes the shielding box of the transformer’s terminals, and the operating shelf attached to the top part of the supporting structure for use when testing the transformer.
  • the opening with the door is provided at the upper surface of the mentioned box.
  • the operating shelf can be collapsed or folded. All the above components make it easy to operate and reduce the size of the transformer station proposed under this invention. The content of this invention will be revealed more clearly in the details described below.
  • FIG. 1 shows the layout of electrical equipment in the vertical section of a one-pillar substation according to an embodiment of this invention.
  • FIG. 2 shows the layout of the electrical equipment of the low- voltage assembly - looking at the front view of the low-voltage assembly.
  • FIG. 3 shows the exterior of the one-pillar substation under one embodiment of this invention - a side view.
  • FIG. 4 shows the exterior of the one-pillar substation under one embodiment of this invention - an external view from the bottom up.
  • FIG. 5 shows the layout of electrical equipment in the vertical section of one- pillar substation according to an other embodiment of this invention.
  • the one-pillar substation under a preferred embodiment of this invention is shown in Fig. 1, consisting of: transformer 3 placed on the supporting structure 2; and the medium voltage assembly (the ring-main unit - RMU) 1 is arranged inside the supporting structure 2; and the low-voltage assembly 4 is placed in the outdoor enclosure and attached to the back of the supporting structure 2.
  • the supporting structure 2 is placed on the foundation, in which the bottom surface of the low- voltage assembly is not placed directly on the foundation of the substation.
  • the medium voltage cable 12 from outside the substation is passed through the foundation and put into the supporting structure 2 to be connected to the input compartment of the RMU 1.
  • the RMU 1 may have one or more input compartments to connect to the medium voltage grid outside the substation.
  • the output compartment for powering transformers of RMU 1 is connected to a medium- voltage branch line cable 5 to connect power to the medium- voltage input of transformer 3.
  • the low- voltage output of transformer 3 is connected to the low- voltage assembly 4 with the low-voltage cable 6.
  • the low-voltage assembly 4 is connected to the low-voltage cable 11 and then connected to the low-voltage distribution grid. All the electrical equipment are connected together by the mentioned medium and low voltage cable to form the main circuit of the transformer station, to connect and transmit electricity between the medium and low voltage grid. It is optimal if the medium-voltage and low-voltage equipments are arranged in accordance with the average height of the operator, in order to facilitate operation.
  • the medium voltage and low voltage assemblies are arranged on opposite sides of the substation. Corresponding to the opposite sides of the supporting structure and the bottom of the low voltage assembly, there are air slots to allow air to pass through but still prevent water entering inside the supporting structure and inside of the lower voltage assembly.
  • the arrangement of the air slots on opposite sides of the supporting structure is to optimize two purposes, the first is: the maximum difference in height from the air gap in the shielding box of the transformer terminals to generate maximum capacity for air intake, and second purpose: electrical equipment is placed above the air gap. So even in the case of water entering through the gap, the water will not affect the electrical equipment that needs to be protected.
  • each substation in service often has to increase its capacity to accommodate the increased load.
  • there is no need to replace the medium-voltage assembly including the supporting struture as it is only necessary to adjust the protection parameters for the circuit breaker or change the medium- voltage fuse. Separate the low-voltage assembly and hang it to the supporting structure of transformer. In this case, it is easier to retain the supporting structure of transformer when a larger capacity transformer is needed.
  • the size of supporting structure of transformer will be reduced, which means saving materials, because the steel for the supporting structure of transformer must be thicker than steel to cover normal electrical equipment.
  • the supporting structure of transformer and the cover the low- voltage assembly have two adjacent sides, so the low-pressure assembly sheathing does not need to cover both sides of the two stated parts still separating the medium-voltage assembly from the low-voltage assembly. Therefore, either side of the two sides mentioned above may not need to be completely sealed in order to save material.
  • the supporting structure of the transformer and the outdoor sheath of the low- voltage assembly must go through all machining stages, including surface treatment before painting.
  • the larger the size of the object to be painted the larger the need for a large chemical treatment tank and a large spraying chamber - not every manufacturing facility has one.
  • the structure is divided into two smaller parts, it will be more flexible and easier to work with, so there are many units that are qualified to fabricate the supporting stracture. Because there are more competitive units, there are conditions to reduce the cost of the substation.
  • the RMU which has three horizontally arranged compartments is the most common type and is also the most optimal for having the height of supporting structure of transformer consistent with the average operator height.Therefore, the selection of RMU with the lower height will be preferred, instead of forcing to choose the higher height type.
  • the low- voltage assembly with the aptomat (module circuit breaker) and busbar are all mounted on the support structure close to the back of the low-votage assembly to help reduce the low-voltage assembly's thickness compared to known substations. Arranging the transformer with the low- voltage terminal facing to the front of the low- voltage assembly will help to shorten the length of the low-voltage cable and easy cable connection.
  • the height of the supporting structure of transformer shown in Fig.l is ideal for arranging both medium and low voltage equipment in accordance with the average height of the operator. However, this has resulted in the transformer being positioned at a height of about 2 meters, with a transformer face height of between 1.1 and 1.3 meters for machines from 400 kVA to 1000 kVA, the height from the base (ground level) of the substation to the terminals of the transformer is about from 3.2 meters to 3.4 meters.
  • pole-mounted substation While the general interpretation for the pole-mounted substation is: "The transformer must be placed at a minimum height of 4.0 m from the conductive part to the ground". Thus, it can be seen that the proposal to reduce the supporting structure height of this invention will be difficult to accept, because the proposed proposal will go against the inherent technical prejudice. Because there are many people still consider the one-pillar substation belong to the pole-mounted substations, so it must be ensure mentioned technical regulations.
  • the proposal of this invention to reduce the height of the supporting structure of transformer will achieve technical efficiency such as easier operation and safety, and achieve economic and social benefits.
  • the economic effect is to reduce the cost of materials, the structure is smaller and simpler, so there is a decrease in machining cost because there are more units that can be machined, so it is more competitive ... etc.
  • the social effect is not to limit the people from walking on the sidewalk and reduce the impact on neighboring works, so the society has more agreement ... etc.
  • Proposing to reduce the height of the supporting structure of transformer to be lower than known is a new feature of this invention. Reducing the height of the supporting structure of transformer also guarantees creativity, because it is proposed to overcome the prejudice that the height of the transformer has been specified, although that prejudice has not been defined right or wrong, but that is the way of many people.
  • the evidence is: The current height of the support pillars of the transformer is unreasonably very large, when the one-pillar substation type must comply with the regulations of the pole-mounted substation, as mentioned.
  • the one-pillar substation proposed in Patent No. 16461 was not a pole-mounted substation - as was the case in practice of one-pillar substation, before this invention was proposed.
  • the pole-mounted substation is substation with an outdoor transformer and all high-voltage (medium-voltage) equipment located on the pole, at the height enough to electrical safety, do not need barriers around Compared to the mentioned definition, the one-pillar substation differs from the pole-mounted substation in the following characteristics: i) The substation's medium-voltage equipment is located inside the transformer supporting structure, instead of arranged "on the pole or overhead structure of the pole".
  • the medium voltage and low voltage equipments of the substation are located at the height suitable for operation when standing at the base of the substation, and placed in an enclosure to ensure safety such as the substation with closed type insulation, instead of the equipment is placed "at a height that is safe enough for electricity, no need for barriers around”.
  • the height of the foundation in Fig. 1 is 0.5 meter above the ground. In fact, the height of foundation maybe higher, and it will cause the structure to exceed the height that the operator can reach to electrical equipment. Therefore, it is necessary to lower the height of the pillar, and use of the spaces below of the pillar to arrange electrical equipment.
  • the occupancy of the transformer station is reduced in all the remaining parts, including:
  • the acceptance of putting the transformer station into use is just an administrative procedure.
  • the RMU will be positioned from the space close to the bottom part of supporting structure upwards, and the space above of the RMU will be used to arrange medium voltage cables to the transformer.
  • it is necessary to create vertical openings to arrange medium-voltage cables from the medium-voltage assembly to the transformer because in the case of the cable compartment located lower part of the RMU cabinet, the medium-voltage cable will be threaded through the mentioned vertical openings to lead upwards and connect to the medium voltage terminal of the transformer assembly. That will reduce the height of the compartment inside the mentioned supporting structure, and RMU will be arraged appropriate for the average operator height.
  • this invention proposes the maximum height of supporting structure of the two-block one-pillar substation with a maximum height of 2.35 meters - lower than the lowest height of the same supporting structure.
  • Figure.2 shows the electrical equipment layout of the low- voltage assembly - looking at the front view of the low-voltage assembly.
  • the low- voltage assembly 4 has the separate compartment to arrange the meter 4.4 with the current transformer 4.1, locked and sealed to prevent theft of electricity.
  • Low voltage capacitors 4.5 are arranged in separate compartment to protect devices from spreading of fault, space in this compartment is enough to arrange more other devices. Because: The low voltage capacitor 4.5 maybe installed with automatic power compensation to optimize and reduce power loss. Below of the branch aptomats there is the neutral busbar 4.6.
  • All the components of the low-voltage assembly are arranged in the outer enclosure of the low-voltage assembly 4.7.
  • the inside of the low-voltage assembly also has insulation fittings and shields to protect against contact - a mandatory requirement that experts in electrical engineering are required to know, so it is not necessary to describe in more detail.
  • FIG. 2 shows a summary of the substation's foundation.
  • the substation's foundation consists of two foundation pillars corresponding to the two side walls of the supporting structure, between the two foundation pillars are filled with ground so that the medium-voltage cable is applied directly in the ground and goes into the supporting structure.
  • the two foundation pillars can be prefabricated into two separate parts and placed on the foundation corresponding to the two side walls of the supporting structure. It is not necessary to have a foundation pit, because only the medium voltage cable connecting the station to the medium voltage grid has to go through the pillar foundation, and the low voltage cable to connect to the low voltage grid will be placed directly in the ground without going through the substation's foundation pit.
  • the medium voltage cable will also be buried directly in the ground, so it will be easy to connect to electrical equipment because it is not confined in the space of the foundation pit, and the foundation is easier to construct. Without the foundation pit is at the same time removing the source of the moisture that rises up to get inside the supporting structure.
  • Figure 3 shows the exterior of a one-pillar substation from another variant of the present invention - a side view.
  • This invention proposes a transformer station with shielding parts to become a closed substation type, in which, transformer 3 is an outdoor type and naturally cooled by oil wings.
  • the terminals of the transformer is enclosed in terminal box 9, medium-voltage cable tray 7 and low-voltage cable tray 8 is arraged to link between terminal box 9 and supporting structure 2 and low-voltage assembly 4. That is forming a block that encapsulates live parts of the substation, both protecting internal electrical equipment, and also protecting the public around the substation, as the substation is designed to be located in a public place.
  • the oil trough 10 is attached to the head of the to limit the transformer explosion when the discharge valve and the protective devices are ineffective - this is a new rare occurrence, but due to public impulse protection reasons around the station, it is still required to propose but has a simple structure so that there are no additional costs and no increase in management and operation tasks.
  • this invention proposes the trough with the gap for oil drain, to enable the substation to self-clean in case of rain.
  • the water drain solution through gap not only eliminates garbage clogging, but also evenly splits and disperses the fault oil on four sides to avoid concentrating on one side, reducing the impact level by four times if focused on one side.
  • On either side of the post there are two concave grooves on the purpose of increasing rigidity and stability when the pier is made of sheet steel to reduce the charge.
  • Sheet steel is steel that has been rolled to have a flat surface and form a long sheet.
  • the above mentioned grooves are fitted with horizontal bars that act as a climbing ladder to reach the top of the support when it is necessary to install and inspect of the transformer. It is better, if the top surface of the sheath 4.7 of the low voltage assembly 4 is lower than the top surface of supporting structure 2 to form a step and provide a foothold when it is necessary to check transformer 3.
  • Figure.4 shows the exterior of the one-pillar substation according to one embodiment of the present invention - a bottom-up view, where the medium- voltage cable is located in the foundation and without a foundation pit, the lowe- voltage cable is arranged outside of the substation's foundation.
  • Low- voltage cables are easy to measure currents with a hand-held gauge because they are not covered by the foundation.
  • the bottom of the low-voltage assembly will be allowed to air and is a place for the air from outside to help dissipate heat faster.
  • the surfaces of supporting structure as well as those of the low-voltage assembly are flat and free of venting parts as is common with known types of other substation's support. Because dust from the air into the electrical cabinet and are also charged, forming dust fibers and sticking to the slot of the venting parts are embossed on a flat surface, to form dust layers and gradually lose their ability ventilation of the gaps. It is the venting parts on the vertical surfaces that limit the flow when rain, so that dust does not wash away but more adhesion, thus reducing heat exchange on the surfaces, it is even the humidifying area to accelerate the destruction of the surface.
  • Figure. 5 shows the layout of electrical equipment in the vertical section of a one- pillar substation according to this invention, but it is the other embodiment.
  • the partition 13 Inside the supporting structure of the transformer cum the sheath structure of the medium and low-voltage assemblies, there is the partition 13 to separate the low- voltage assembly 4 from the medium- voltage assembly 1.
  • the medium- voltage assembly is RMU cabinets with insulating sheaths, including medium- voltage cable sheaths - are known conventional RMU cabinets with horizontally arranged cable compartments.
  • Partition 13 can be linked to the side walls of the transformer support structure to increase rigidity, or it can be just the rear baffle of the low voltage assembly 4, to separate the low-voltage assembly 4 from the medium- voltage assembly 1.
  • this invention proposes to apply the shielding box of the transformer terminals, with a clearance on the it's upper surface for faster inspection of the terminals.
  • the supporting structure shall be fitted with a support at the top part to stand up when testing the transformer, if the top surface of the low-voltage assembly does not meet.
  • the transformer is mounted on the supporting structure in such a way that the low voltage terminals are in the same direction as the clearance (opened surface) of the low-voltage assembly.
  • the effect is apparent:
  • the low-voltage cable will be shorter than in the case of transformers arranged in a direction perpendicular to the aforementioned direction.
  • the cable from the transformer is also arranged in the same direction as the transformer and the low-voltage assembly, reducing the number of cable bends, so it is easy to install compared to the way the transformer is turned in the other direction.
  • the supporting structure combined with the enclosure for the low-voltage and medium-voltage assemblies can be rigidly bonded by welding together, or can form smaller and separate structures for easy machining, they will be assembled together by bolts to become a structural block with the above integration function.
  • the foundation of the substation can be done corresponding to a part of the structure horizontal width as shown in figure 1, or corresponding to the entire width of the structure - fig.5. less. If the foundation has done same in Figure 1, it creates a feeling that the area of the substation site occupancy will be smaller. If the foundation has done same in Figure 5, then the substation will be more stable. Both options of mentioned foundations are proposed in this invention.
  • Example 1 The operating shelf in a horizontal position to stand for checking of transformer, then it can be folded down or collapsed into the head of the pillar to reduce the size of the substation, and in the folded position, the stated operating shelf is an outer cover to prevent rainwater penetrates into pillar through slots created on the vertical surface of the pillar and behind of the transformer support when it is folded down.
  • Example 2 The transformer is lowered when the height of pillar is reduced, the failure of the transformer to allow the oil to drain suddenly will cause greater consequences than when placed higher. So, the oil drain trough need the vertical wall arounded of the transformer, for the higher protection coverage.
  • Example 3 The horizontal bars can be rigidly attached to the groove created on the side walls of the pillar to take advantage of the recess and use as a climbing ladder, while the groove is also made to stiffen the pillar and reduce extra space inside the pillar, and also to create a slot next to the RMU compartment for cooling and also a space for medium-voltage cable.
  • the horizontal bars can be separate from the pillar and then linked to the pillar in such a way that it can be opened to climb, and can be closed to the outside of the pillar, or pushed into the pillar to reduce the size of the substation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

La présente invention concerne une sous-station à colonne unique qui est une sous-station de distribution avec un transformateur placé sur une structure de support dans laquelle se trouvent deux compartiments adjacents pour agencer des équipements de moyenne et basse tension à la même hauteur. La délimitation de deux espaces à moyenne et basse tension n'est qu'une convention pour agencer des équipements, ou elle peut être divisée en deux compartiments distincts. La hauteur de ladite structure à partir de la surface inférieure placée sur la fondation jusqu'à la surface supérieure pour placer le transformateur est bien inférieure à 2,4 mètres. Les niveaux spécifiques sont : 2,25 mètres, 2,20 mètres, 2,15 mètres... 1,60 mètre, chaque niveau diminuant de 0,05 mètre à partir du niveau supérieur le plus proche. L'intérieur de la structure mentionnée peut contenir un espace commun pour y disposer les ensembles à moyenne et basse tension si au moins l'un des ensembles mentionnés a le couvercle arrière. L'espace à l'intérieur de ladite structure peut être divisé en deux compartiments pour agencer un ensemble à moyenne tension et un ensemble à basse tension. La sous-station a une auge pour éviter les fuites d'huile et limiter les blessures infligées aux personnes en cas de défaillance du transformateur.
PCT/VN2021/000001 2020-01-17 2021-01-12 Sous-station à colonne unique WO2021146759A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
VN202000374 2020-01-17
VN1-2020-00374 2020-01-17

Publications (1)

Publication Number Publication Date
WO2021146759A1 true WO2021146759A1 (fr) 2021-07-22

Family

ID=76863607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/VN2021/000001 WO2021146759A1 (fr) 2020-01-17 2021-01-12 Sous-station à colonne unique

Country Status (1)

Country Link
WO (1) WO2021146759A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115762984A (zh) * 2022-12-06 2023-03-07 南通志和电气有限公司 一种变压器油箱用固定座
CN116742498A (zh) * 2023-06-01 2023-09-12 江苏特建技术股份有限公司 一种新型安全防护效果好的箱式变电站箱体及使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7352564B2 (en) * 2004-10-16 2008-04-01 Eaton Corporation Power distribution substation
EP1533877B1 (fr) * 2002-07-25 2010-03-31 Grupo Ormazabal, S.A. Poste de transfomation compact
CN204179545U (zh) * 2014-09-30 2015-02-25 北京合纵实科电力科技有限公司 一种10kV节能型欧变
CN209217550U (zh) * 2019-01-05 2019-08-06 湖北赛瑞迪电气设备有限公司 立体式积木箱式变电站
CN209823262U (zh) * 2019-05-17 2019-12-20 海鸿电气有限公司 一种快速接入的移动变电站

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533877B1 (fr) * 2002-07-25 2010-03-31 Grupo Ormazabal, S.A. Poste de transfomation compact
US7352564B2 (en) * 2004-10-16 2008-04-01 Eaton Corporation Power distribution substation
CN204179545U (zh) * 2014-09-30 2015-02-25 北京合纵实科电力科技有限公司 一种10kV节能型欧变
CN209217550U (zh) * 2019-01-05 2019-08-06 湖北赛瑞迪电气设备有限公司 立体式积木箱式变电站
CN209823262U (zh) * 2019-05-17 2019-12-20 海鸿电气有限公司 一种快速接入的移动变电站

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115762984A (zh) * 2022-12-06 2023-03-07 南通志和电气有限公司 一种变压器油箱用固定座
CN115762984B (zh) * 2022-12-06 2023-10-27 南通志和电气有限公司 一种变压器油箱用固定座
CN116742498A (zh) * 2023-06-01 2023-09-12 江苏特建技术股份有限公司 一种新型安全防护效果好的箱式变电站箱体及使用方法
CN116742498B (zh) * 2023-06-01 2023-12-26 江苏特建技术股份有限公司 一种新型安全防护效果好的箱式变电站箱体及使用方法

Similar Documents

Publication Publication Date Title
US6233137B1 (en) Compact power distribution substation
WO2021146759A1 (fr) Sous-station à colonne unique
CN104917086A (zh) 户外预装式变电站
DK2923015T3 (en) TRANSFER STATION FOR INTRODUCING ELECTRIC ENERGY AND WINDOW ENERGY PARK WITH SUCH A TRANSFER STATION
CN106532534A (zh) 一种城镇用小型化预装式变电站
CN2503649Y (zh) 预制式地下箱式变电站
JP6005995B2 (ja) 変電設備ユニット
JP2010158153A (ja) 中高層集合住宅向け高圧受電設備の設置構造及び設置方法
CN205159875U (zh) 低压配电箱
US20200106274A1 (en) Electrical substation, installation and method of implemention
EP4367761A1 (fr) Sous-station de transformation électrique
CN208797450U (zh) 一种全地埋箱式变电站
CN109742652B (zh) 贯流式水电站发电机主引出线的改进结构
RU2219630C1 (ru) Способ возведения блочной распределительной трансформаторной подстанции
RU73130U1 (ru) Компактная электрическая подстанция
RU2335050C1 (ru) Электрическая подстанция
Beltran ITER Electrical Design Handbook. Earthing and Lightning Protection
KR200197601Y1 (ko) 전력 수급용 계기용 변압,변류기
RU2240638C1 (ru) Способ электроснабжения возводимого или реконструируемого сооружения, комплекса сооружений, способ электроснабжения населенного пункта, микрорайона, района города, промышленного, агропромышленного комплекса, мегаполиса, сеть электроснабжения возводимого или реконструируемого сооружения, комплекса сооружений и сеть электроснабжения населенного пункта, микрорайона, района города, промышленного, агропромышленного комплекса, мегаполиса
RU2240639C1 (ru) Способ эксплуатации сети электроснабжения района, города, мегаполиса, способ эксплуатации сети электроснабжения при возведении строительных объектов района, города, мегаполиса, способ эксплуатации сети электроснабжения при ремонте и/или реконструкции здания, сооружения, комплекса зданий, сооружений, объектов промышленного комплекса и способ эксплуатации сети электроснабжения при реконструкции и/или возведении объектов транспортного комплекса района, города, мегаполиса
WO2021049957A1 (fr) Sous-station modulaire de puissance et son procédé de construction
RU68796U1 (ru) Электрическая подстанция
RU76177U1 (ru) Электрическая подстанция компактная
RU79354U1 (ru) Пункт коммерческого учета электроэнергии
Kirby et al. Konti-Skan HVDC refurbishment and life extension methods for other HVDC projects

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21741884

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21741884

Country of ref document: EP

Kind code of ref document: A1