CN218448956U - Layout-compact prefabricated substation and power generation system - Google Patents

Abstract

The utility model discloses a compact layout's prepackage type transformer substation and power generation system, it includes the box, and low-voltage chamber, high-voltage chamber and transformer room in the box are used for installing first high tension switchgear, first transformer main part and first low tension switchgear respectively, just first high tension switchgear passes through cable connection with first transformer main part, first transformer main part passes through the copper bar with first low tension switchgear and is connected to constitute prepackage type transformer substation's foundation structure, through setting up a first inlet wire cable junction unit and two first circuit breaker units on first high tension switchgear, thereby realize that prepackage type transformer substation can have two tunnel outgoing lines, when one of them circuit trouble, another circuit is not disturbed, thereby reduces the power generation loss of the power generation system who uses this prepackage type transformer substation.

Description

Layout-compact prefabricated substation and power generation system

Technical Field

The utility model discloses substation equipment technical field, in particular to compact prepackage type transformer substation of overall arrangement and power generation system.

Background

At present, DV structures are generally used in high-voltage switchgear parts of box-type substations used in the fields of new energy resources such as wind power, photovoltaic and the like, namely, an incoming cable connecting unit and a breaker unit are arranged on the high-voltage switchgear, as shown in figure 1, looped network outgoing lines are generally realized by connecting loop cables in the cable connecting unit, and a plurality of transformer boxes are connected into a string to form a line to be connected into a booster station.

If a plurality of transformer boxes are wired as shown in fig. 1, when one transformer box needs to be maintained or breaks down, the number of the transformer boxes needing power failure can be greatly increased, or when a power transmission line breaks down, the whole line needs power failure, and huge power generation loss is caused to a wind power plant and a photovoltaic electric field.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a prefabricated substation and a power generation system with compact layout, which can reduce power generation loss in line fault and have simple and practical structure.

In order to achieve the above purpose, the technical scheme of the utility model has:

a compact layout pre-installed substation comprising:

the transformer device comprises a box body, a low-pressure chamber, a high-pressure chamber and a transformer chamber are arranged in the box body in a distinguishing manner through partition plates, and the low-pressure chamber, the high-pressure chamber and the transformer chamber are distributed in a shape like a Chinese character 'pin';

a first high voltage switchgear disposed within the high voltage chamber;

a first transformer body disposed within the transformer chamber;

a first low voltage switching device disposed within the low voltage chamber;

the first high-voltage switch equipment is connected with the first transformer main body through a cable, and the first transformer main body is connected with the first low-voltage switch equipment through a copper bar;

the first high-voltage switch equipment is provided with an incoming cable connecting unit and a breaker unit, and the first incoming cable connecting unit and the two first breaker units are correspondingly arranged on the high-voltage switch equipment.

Compared with the prior art, the utility model discloses a compact prepackage type transformer substation of overall arrangement, it includes the box, and low-voltage chamber, high-voltage chamber and transformer room in the box are used for installing first high tension switchgear, first transformer main part and first low tension switchgear respectively, just first high tension switchgear passes through cable junction with first transformer main part, first transformer main part passes through the copper bar with first low tension switchgear and is connected to constitute prepackage type transformer substation's foundation structure, through set up a first inlet wire cable junction unit and two first circuit breaker units on first high tension switchgear, thereby realize that prepackage type transformer substation can have two tunnel and be qualified for the next round of competitions, when one of them circuit trouble, another circuit is undisturbed to reduce the power generation loss who uses this prepackage type transformer substation's power generation system.

Further, high tension switchgear is provided with three, every high tension switchgear all has a first inlet wire cable junction unit and two first circuit breaker units to correspond the setting.

Furthermore, the high-voltage switch equipment also comprises an isolating switch, a grounding switch and a circuit breaker arc extinguish chamber;

the isolating switch, the grounding switch and the arc extinguish chamber of the circuit breaker are sealed in an air box.

As an optimized scheme of the utility model, still provide a power generation system, its characterized in that, power generation system uses like foretell prepackage type transformer substation.

Further, the power generation system includes:

one of said prefabricated substations; and

a plurality of power transformation boxes, said power transformation boxes comprising a second high voltage switchgear, said second high voltage switchgear having a second incoming cable connection unit and a second circuit breaker unit;

the plurality of transformer boxes are sequentially connected with the second breaker unit through the second incoming cable connecting unit, and the second incoming cable unit of one transformer box positioned at the end part is connected with the first breaker unit of the prefabricated substation.

Further, the power generation system includes:

a plurality of pre-installed substations; and

a plurality of power transformation boxes, said power transformation boxes comprising a second high voltage switchgear, said second high voltage switchgear having a second incoming cable connection unit and a second circuit breaker unit;

the two first circuit breaker units of the pre-installed substation can be connected with the second incoming cable connecting unit of the substation box;

a first incoming cable unit of the pre-installed substation can be connected with a second circuit breaker unit of a substation box; and the two pre-installed substations can be connected in series with the first breaker unit through the first incoming cable unit.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a connection structure of a high-voltage switchgear of a transformer substation to a transformer box in the prior art;

fig. 2 is a schematic structural diagram of a preassembled transformer substation in the present embodiment;

fig. 3 is a schematic connection structure diagram of a preassembled transformer substation connecting transformer box in the power generation system using the preassembled transformer substation according to the present embodiment;

fig. 4 is a schematic view of another connection structure of a preassembled transformer substation to a substation box in the power generation system using the preassembled transformer substation in the present embodiment;

Detailed Description

In order to better illustrate the invention, the invention is described in further detail below with reference to the accompanying drawings.

It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

At present, DV structures are generally used in high-voltage switchgear parts of box-type substations used in the fields of new energy resources such as wind power, photovoltaic and the like, namely, an incoming cable connecting unit and a breaker unit are arranged on the high-voltage switchgear, as shown in figure 1, looped network outgoing lines are generally realized by connecting loop cables in the cable connecting unit, and a plurality of transformer boxes are connected into a string to form a line to be connected into a booster station.

If a plurality of transformer boxes are wired as shown in fig. 1, when one transformer box needs to be maintained or breaks down, the number of the transformer boxes needing power failure can be greatly increased, or when a power transmission line breaks down, the whole line needs power failure, and huge power generation loss is caused to a wind power plant and a photovoltaic electric field.

Therefore, the utility model discloses the technical problem who actually solves lies in how to improve the line structure of transformer substation.

As an illustrative example in the present embodiment, as shown in fig. 2, a compact-layout prefabricated substation includes:

the transformer box comprises a box body 1, wherein a low-pressure chamber 12, a high-pressure chamber 11 and a transformer chamber 13 are arranged in the box body 1 in a distinguishing manner through partition plates, and the low-pressure chamber 12, the high-pressure chamber 11 and the transformer chamber 13 are arranged in a shape like a Chinese character 'pin';

a first high voltage switchgear 111, said first high voltage switchgear 111 being arranged within the high voltage chamber 11;

a first transformer body 131, the first transformer body 131 being disposed within the transformer chamber 13;

a first low voltage switching device 121, said first low voltage switching device 121 being disposed within the low voltage chamber 12;

the first high-voltage switch device 111 is connected with the first transformer main body 131 through a cable, and the first transformer main body 131 is connected with the first low-voltage switch device 121 through a copper bar;

wherein, be provided with first inlet wire cable connection unit 1111 and first circuit breaker unit 1112 on the first high tension switchgear 111, and on high tension switchgear, a first inlet wire cable connection unit 1111 and two first circuit breaker units 1112 correspond the setting, and two first circuit breaker units 1112 can correspond respectively and have two routes to be qualified for the next round of competitions, and it is used for connecting transformer box 200.

The prefabricated substation with compact layout in the embodiment comprises a box body 1, wherein a low-voltage chamber 12, a high-voltage chamber 11 and a transformer chamber 13 in the box body 1 are respectively used for installing a first high-voltage switch device 111, a first transformer main body 131 and a first low-voltage switch device 121, the first high-voltage switch device 111 is connected with the first transformer main body 131 through a cable, the first transformer main body 131 is connected with the first low-voltage switch device 121 through a copper bar, so that a basic structure of the prefabricated substation is formed, and a first incoming cable connection unit 1111 and two first breaker units 1112 are arranged on the first high-voltage switch device 111, so that the prefabricated substation can have two outgoing lines, and when one line fails, the other line is not interfered, so that the power generation loss of a power generation system using the prefabricated substation is reduced.

The specific structure of the preassembled transformer substation applied in this embodiment is shown in fig. 1, three first high-voltage switchgear 111 are provided, and each first high-voltage switchgear 111 has one first incoming cable connection unit 1111 disposed corresponding to two first breaker units 1112.

In addition, the first high voltage switchgear 111 further comprises a disconnector, an earthing switch and a circuit breaker arc chute;

wherein, isolator, earthing switch and circuit breaker explosion chamber are sealed in an air box, the preferred SF6 air box of air box, it is used for preventing isolator, earthing switch and circuit breaker explosion chamber contact air and leads to corroding to improve high tension switchgear's life.

As another illustrative example in the present embodiment, there is also provided a power generation system using the preassembled transformer substation as described above, and since the power generation system includes the preassembled transformer substation as described above, the power generation system has all the advantages of the preassembled transformer substation, which are not stated herein.

As an example of this example, as shown in fig. 3, the power generation system includes:

one of the preassembled substations 100; and

a plurality of power transformation boxes 200, said power transformation boxes 200 comprising a second high voltage switchgear having one second incoming cable connection unit and one second circuit breaker unit;

the plurality of transformer boxes 200 are sequentially connected with the second breaker unit through the second incoming cable connection unit, and the second incoming cable unit of one transformer box 200 located at the end is connected with the first breaker unit 1112 of the pre-installed substation.

Specifically, the number of the transformer boxes 200 is 6, three transformer boxes 200 are connected in series with a second breaker unit through a second incoming cable connection unit, and two of the second incoming cable units of the transformer boxes 200 located at the end portions are connected with two breaker units of the pre-installed substation.

As a second example of this example, as shown in fig. 4, the power generation system includes:

a plurality of pre-installed substations; and

a plurality of power transformation boxes 200, said power transformation boxes 200 comprising a second high voltage switchgear having one second incoming cable connection unit and one second circuit breaker unit;

wherein, both the two first breaker units 1112 of the pre-installed substation can be connected with the second incoming cable connection unit of the substation box 200;

a first incoming cable unit of the pre-installed substation can be connected with a second breaker unit of the substation box 200; and two of said pre-installed substations can be connected in series via a first incoming cable unit and a first breaker unit 1112.

Two prefabricated substations are arranged, and each prefabricated substation comprises a first prefabricated substation and a second prefabricated substation, and the first prefabricated substation is connected with three transformer boxes 200 in series through a corresponding first breaker unit 1112; the first preassembled transformer substation is connected with the first incoming cable unit of the second preassembled transformer substation through another first breaker unit 1112, the second preassembled transformer substation is connected with two transformer boxes 200 in series through the corresponding first breaker unit 1112, and the second preassembled transformer substation is connected with one transformer box 200 in series through the corresponding another first breaker unit 1112.

Variations and modifications to the above-described embodiments may occur to those skilled in the art based upon the disclosure and teachings of the above specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (6)

1. A compact layout prefabricated substation, comprising:

the transformer device comprises a box body, a low-pressure chamber, a high-pressure chamber and a transformer chamber are arranged in the box body in a distinguishing manner through a partition plate, and the low-pressure chamber, the high-pressure chamber and the transformer chamber are arranged in a shape of Chinese character 'pin';

a first high voltage switchgear disposed within the high voltage chamber;

a first transformer body disposed within the transformer chamber;

a first low voltage switching device disposed within the low voltage chamber;

the first high-voltage switch equipment is connected with the first transformer main body through a cable, and the first transformer main body is connected with the first low-voltage switch equipment through a copper bar;

the first high-voltage switch equipment is provided with an incoming cable connecting unit and a breaker unit, and the first incoming cable connecting unit and the two first breaker units are correspondingly arranged on the high-voltage switch equipment.

2. A compact layout pre-assembled substation according to claim 1, characterized in that:

first high tension switchgear is provided with three, every first high tension switchgear all has a first inlet wire cable junction unit and two first circuit breaker units to correspond the setting.

3. A compact layout pre-assembled substation according to claim 1, characterized in that:

the first high-voltage switch equipment also comprises an isolating switch, a grounding switch and a circuit breaker arc extinguish chamber;

the isolating switch, the grounding switch and the arc extinguish chamber of the circuit breaker are sealed in an air box.

4. A power generation system using a compact layout pre-packaged substation as claimed in any one of claims 1 to 3.

5. The power generation system of claim 4, comprising:

one said pre-assembled substation; and

a plurality of power transformation boxes, said power transformation boxes comprising a second high voltage switchgear, said second high voltage switchgear having a second incoming cable connection unit and a second circuit breaker unit;

the plurality of transformer boxes are sequentially connected with the second breaker unit through the second incoming cable connecting unit, and the second incoming cable unit of one transformer box positioned at the end part is connected with the first breaker unit of the prefabricated substation.

6. The power generation system of claim 4, comprising:

a plurality of pre-installed substations; and

a plurality of power transformation boxes, said power transformation boxes comprising a second high voltage switchgear, said second high voltage switchgear having a second incoming cable connection unit and a second circuit breaker unit;

the two first circuit breaker units of the pre-installed substation can be connected with the second incoming cable connecting unit of the substation box;

a first incoming cable unit of the pre-installed substation can be connected with a second circuit breaker unit of a substation box;

and two prefabricated substations can be connected in series through the first incoming cable unit and the first breaker unit.

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