KR-20220080944-A - UNDERGROUND-LAID ELECTRIC TRANSFORMER, SWITCH AND FOUNDATION STRUCTURE THEREOF

Abstract

An underground power device is provided. A structure for an underground buried power device according to some embodiments of the present invention includes a power device installation box in which a power device is installed, a cable entry box that is located on one side of the power device installation box and a first cable is introduced from the outside, and the and a cable take-out box located on the other side of the power device installation box and through which a second cable is drawn out, wherein the internal space of the power device installation box is a space separated from the cable entry box or the cable exit box, and the first cable is introduced into the power device through the cable entry box, and the second cable is withdrawn from the power device through the cable exit box.

Inventors

• LEE JU EOK

Assignees

• SHINSUNG IND ELECTRIC CO LTD

Dates

Publication Date

20220615

Application Date

20201208

Priority Date

20201208

Claims (14)

1. Electrical equipment installation box where electrical equipment is installed; a cable entry box located on one side of the power device installation box and into which a first cable is introduced from the outside; and It is located on the other side of the power equipment installation box and includes a cable take-out box from which a second cable is drawn out, The internal space of the power device installation box is a space separated from the cable entry box or the cable exit box, The first cable is introduced into the electrical equipment through the cable entry box, The second cable is drawn out from the electrical equipment through the cable take-out box, Structures for underground power equipment.
2. According to claim 1, The cable entry box is an inlet located at a lower portion of the cable entry box and through which the first cable is introduced from the outside; and It is located on the upper portion of the cable entry box and includes a passage groove through which the first cable introduced through the inlet is introduced into the power device installation box, Structures for underground power equipment.
3. According to claim 1, The cable withdrawal is a passage groove located at the upper portion of the cable take-out box and through which the second cable is drawn out from the power device installation box; and It is located in the lower portion of the cable take-out box and includes an outlet through which the second cable drawn out through the passage groove is drawn out. Structures for underground power equipment.
4. 4. The method according to any one of claims 2 to 3, The through groove is formed in a 'U' shape, Structures for underground power equipment.
5. 4. The method according to any one of claims 2 to 3, It is mounted on the passage groove, further comprising a waterproof block preventing water from entering into the installation of the power device, Structures for underground power equipment.
6. According to claim 1, an upper cover covering the upper part of the electric power equipment installation box; and Further comprising a sealing portion mounted between the power equipment installation box and the upper cover, Structures for underground power equipment.
7. 7. The method of claim 6, In the upper cover, A pipe for inducing a flow of air is formed so that the air inside the power device installation box can be circulated to the outside, Structures for underground power equipment.
8. 8. The method of claim 7, At one end of the pipe, A foreign substance inflow prevention body to prevent the inflow of rainwater from the outside is provided, Structures for underground power equipment.
9. In the transformer installed in the underground type structure, a transformer including a transformer core; an independent space positioned on the side of the transformer and forming a closed space separated from the transformer; and and a transformer protection device installed in the independent space and electrically connected to the transformer to protect the transformer, Transformers.
10. 10. The method of claim 9, The transformer protection device, Including Hallyu fuse and Bay-O-net fuse, The current-limiting fuse and the bayonet fuse are connected in series to each other, Transformers.
11. 11. The method of claim 10, Further comprising a fuse box upper hole located in the upper portion of the independent space, The Korean current fuse or the bayonet fuse is replaceable through the upper hole of the fuse box, Transformers.
12. 11. The method of claim 10, a first bushing to which a first cable is introduced from the outside; and Further comprising a second bushing from which a second cable is drawn to the outside, The first bushing and the second bushing are electrically connected to each other through a conductor, The conductor is electrically connected to one end of the current-limiting fuse, The other end of the current-limiting fuse is formed as an insulating bushing and is introduced into the transformer, Transformers.
13. 10. The method of claim 9, The transformer and the independent space, Installed in the power equipment installation box of the underground buried structure, The underground buried structure, a cable entry box located on one side of the power device installation box and into which a first cable is introduced from the outside; and It is located on the other side of the power equipment installation box and includes a cable take-out box from which a second cable is drawn out, Transformers.
14. In the opening/closing device installed in an underground buried structure, a plurality of two-way switchgear bushings located on opposite sides of each other; and a switchgear manipulator positioned between the plurality of two-way switchgear bushings, The plurality of two-way opening and closing device bushings and the opening and closing device manipulator, Installed in the power equipment installation box of the underground buried structure, The underground buried structure, a cable entry box located on one side of the power device installation box and into which a first cable is introduced from the outside; and It is located on the other side of the power equipment installation box and includes a cable take-out box from which a second cable is drawn out, opening and closing device.

Description

Underground type transformer, switchgear and its installation foundation The present invention relates to a transformer, a switchgear, and a basic structure for installing the same, which can be safely waterproofed while simplifying installation, operation, and maintenance when installing high-voltage equipment such as a transformer and a switchgear underground. When the distribution line is buried underground, the distribution line is mainly constructed along the roadside. When installing a transformer or switchgear, the concrete base is first installed underground, then the cables are drawn in and out, and the transformer or switchgear is installed again on the base. will do However, if the transformer or switchgear is installed underground, it is difficult to completely waterproof the cable inlet and outlet, and if the cable connection is performed from the front, the foundation becomes large and there are problems in maintenance. have done On the other hand, when a transformer or switchgear is installed on the ground, it is necessary to install a large volume of electrical equipment on the road, which interferes with pedestrians and harms the aesthetics of the city. causes this to be raised. In order to solve these conflicting problems, a method of installing a relatively wide manhole underground and installing, constructing, and maintaining a transformer or a switchgear therein has been proposed. However, in order to apply this method, it is difficult to waterproof not only the underground electrical equipment, but also the cable inlet and outlet, and the foundation cover must be drained. Sufficient working space should be provided, but there is a problem in that it is difficult to secure a wide space for the foundation because water or gas pipes are installed underground along the actual roadside. 1 is an exemplary installation view of a conventional ground-type transformer. 2 is an exemplary installation view of a conventional ground-type switchgear. 3 is an exemplary view of an existing underground installation type switchgear. 4 is an exemplary installation view of the underground installation type transformer of the present invention. 5 is an exemplary installation view of the underground installation type switchgear of the present invention. 6 is an exemplary structural diagram of the underground installation type transformer of the present invention. 7 is a structural exemplary view of the underground installation type switchgear of the present invention. 8 is an exemplary view of the cable installation box of the present invention, the power equipment installation box. 9 is a top view of an underground installation type transformer of the present invention. 10 is a front view of an underground installation type transformer installation of the present invention. 11 is a front view of the installation of the underground installation type transformer of the present invention. 12 is an installation top view of the underground installation type switchgear of the present invention. 13 is a front view of the installation of the underground installation type switchgear of the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the technical spirit of the present invention is not limited to the following embodiments, but may be implemented in various different forms, and only the following embodiments complete the technical spirit of the present invention, and in the technical field to which the present invention belongs It is provided to fully inform those of ordinary skill in the art of the scope of the present invention, and the technical spirit of the present invention is only defined by the scope of the claims. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also incl