CN216819320U

CN216819320U - Transformer substation based on HGIS equipment

Info

Publication number: CN216819320U
Application number: CN202123133051.6U
Authority: CN
Inventors: 金忠德; 吴俊�; 杜江波; 刘宇; 林天津
Original assignee: NR Electric Co Ltd; NR Engineering Co Ltd
Current assignee: NR Electric Co Ltd; NR Engineering Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-24
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a transformer substation based on HGIS equipment, which comprises a transformer substation body and an extension transformer substation, wherein the extension transformer substation is arranged close to the transformer substation body, and an isolation barrier is arranged between the transformer substation body and the extension transformer substation; and the high-voltage side of the extension substation is electrically connected with the high-voltage side bus of the substation body through the HGIS equipment. The technical scheme of the utility model realizes the electrical connection between the transformer substation body and the extension transformer substation, and the transformer substation body can complete the connection between the HGIS equipment sleeve and the overhead bus only by short power failure time.

Description

Transformer substation based on HGIS equipment

Technical Field

The utility model relates to a transformer substation, in particular to a transformer substation based on HGIS equipment.

Background

In the field of construction of domestic photovoltaic, wind power and other new energy power generation boosting substations, due to the limitation of the number of power grid access points, different new energy projects often share the same power grid access point, two boosting substations of different new energy projects are constructed at the same site, and are combined at the high-voltage side into the same point to be accessed to a power grid company. The mode can effectively save land data and improve the power transmission efficiency. When a substation is newly built and expanded beside an established substation, the convenience of access of a high-voltage side grid-connected point needs to be fully considered, the influence on an opinion substation is ensured to be small, and the power failure time is reduced. Under a conventional construction mode, if a high-voltage side bus of a constructed transformer substation is an outdoor overhead bus, the extension overhead bus needs to be extended from the extension transformer substation and connected with the overhead bus of the constructed transformer substation so as to achieve the purpose of connection. The overhead bus and the framework not only occupy larger occupied area, but also require longer power failure time when the high-voltage side is accessed, and the construction period and the construction amount of the whole project are larger.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a transformer substation based on HGIS equipment, which can reduce the floor area and shorten the power failure time of the transformer substation when a sleeve of the HGIS equipment is connected with an overhead bus.

The technical scheme is as follows: the transformer substation comprises a transformer substation body and an extension transformer substation, wherein the extension transformer substation is arranged close to the transformer substation body, and an isolation barrier is arranged between the transformer substation body and the extension transformer substation; and the high-voltage side of the extension substation is electrically connected with a high-voltage side bus of the substation body through HGIS equipment.

The whole HGIS equipment is of an L-shaped structure, a main body part and a wire outlet sleeve at one end of the HGIS equipment are positioned in the extension substation, and a wire outlet sleeve at the other end of the HGIS equipment extends to the lower part of a framework in the substation body.

The outgoing line sleeve at one end of the HGIS equipment is connected with the main transformer) and the outgoing line sleeve at the other end of the HGIS equipment is connected with the framework through flexible wires.

The high-voltage side bus of the transformer substation body is an overhead bus, and a framework at the end part of the overhead bus is close to the extension transformer substation.

And a container type SVG device, an HGIS device, a main transformer and a steel structure prefabricated assembly type distribution box are sequentially arranged in the extension substation from an inlet along the length direction of the extension substation.

And a maintenance channel is arranged between the container type SVG equipment and the HGIS equipment.

A switch equipment room, a secondary equipment room, a monitoring room, a storage battery room and a small-resistance grounding complete equipment room are arranged in the steel structure prefabricated distribution box, and the equipment rooms are connected through a channel; wherein the switchgear cabinet equipment is arranged indoors.

The main transformer adopts an outdoor integrated double-ring transformer, and a low-voltage side sleeve of the main transformer is connected with the switch cabinet equipment through a copper bar.

Compared with the prior art, the utility model has the beneficial effects that: (1) the quick and simple connection of the high-voltage sides of two transformer substations which are co-constructed at the same site is realized; (2) the optimal design of the electrical connection and the physical layout of the equipment is realized, and the steel structure assembly type building and the container are adopted, so that the floor area is saved to the maximum extent, and the construction time of the transformer substation is saved.

Drawings

FIG. 1 is a top view of the present invention;

fig. 2 is a schematic diagram of the electrical connection of the HGIS plant of fig. 1 on the side of the substation body;

fig. 3 is a schematic diagram of the electrical connections inside the extension substation according to the present invention.

Detailed Description

The technical scheme of the utility model is described in detail in the following with the combination of the specific embodiment and the attached drawings of the specification.

As shown in fig. 1 to 3, the present invention includes a substation body 100 and an extension substation 200, and the extension substation 200 is disposed closely to the substation body 100. An isolation barrier 5 is arranged between the substation body 100 and the extension substation 200, so that physical isolation of a substation area is realized. The high-voltage side of the extension substation 200 is electrically connected with the high-voltage side bus of the substation body 100 through the HGIS device 220. In this embodiment, the HGIS device 220 is integrally L-shaped, a main body portion and one end of the HGIS device 220 are located in the extension substation 200, and the other end of the HGIS device 220 extends to a position below the framework 4 in the substation body 100. The outgoing line sleeve at one end of the HGIS device 220 is connected with the main transformer 230, and the outgoing line sleeve at the other end of the HGIS device 220 is connected with the framework 4 through flexible wires 1. In this embodiment, the flexible conductor 1 is an aluminum conductor with steel core. The transformer substation body 100 is a 220kV transformer substation, a 220kV high-voltage side bus adopts an overhead bus 3, and a framework 4 at the end part of the overhead bus 3 is close to the extension transformer substation 200. No electrical equipment is arranged below the framework 4, so that a 220kV L-shaped HGIS equipment 220 one-end outlet sleeve is conveniently arranged below the framework 4 and is electrically connected with the transformer substation body 100 at a 220kV high-voltage side. The extension substation 200 is internally provided with a container type SVG device 210, an HGIS device 220, a main transformer 230 and a steel structure prefabricated distribution box 240 in sequence along the length direction from an entrance. A maintenance channel is arranged between the container type SVG device 210 and the HGIS device 220.

A switching equipment room 241, a secondary equipment room 242, a monitoring room 243, a storage battery room 244 and a small-resistance grounding complete equipment room 246 are arranged in the steel-structure prefabricated distribution box 240, and all the equipment rooms are connected through a channel 245; wherein a switchgear device 250 is arranged in the switchgear room 241.

The main transformer 230 is an outdoor integrated double-coil transformer, specifically a 220kV/35kV double-coil transformer. The high-voltage side sleeve of the main transformer 230 is connected with one end sleeve of the HGIS equipment 220 through a flexible conductor 1, and the low-voltage side sleeve of the main transformer 230 is connected with the switch cabinet equipment 250 in the steel structure prefabricated assembly type distribution box 240 through a copper bar 2.

Container formula SVG equipment 210 contains a 30 chi standard container and arranges the direct hanging SVG complete sets of 35kV in the container, and complete sets accomplishes capability test and experiment in the mill to install in the container, the container is wholly supplied goods to the field installation and can accomplish equipment fixing on the container basis.

Claims

1. A transformer substation based on HGIS equipment, includes transformer substation body (100), its characterized in that: the transformer substation structure is characterized by further comprising an extension transformer substation (200), wherein the extension transformer substation (200) is arranged in a manner of being tightly attached to the transformer substation body (100), and an isolation barrier (5) is arranged between the transformer substation body (100) and the extension transformer substation (200); and the high-voltage side of the extension substation (200) is electrically connected with a high-voltage side bus of the substation body (100) through the HGIS equipment (220).

2. An HGIS plant based substation according to claim 1, characterized in that: the HGIS equipment (220) is integrally of an L-shaped structure, a main body part and one end outlet sleeve of the HGIS equipment (220) are positioned in the extension substation (200), and the other end outlet sleeve of the HGIS equipment (220) extends to the lower part of a framework (4) in the substation body (100).

3. An HGIS plant based substation according to claim 2, characterized in that: and the outgoing line sleeve at one end of the HGIS equipment (220) is connected with the main transformer (230), and the outgoing line sleeve at the other end of the HGIS equipment (220) is connected with the framework (4) through flexible wires (1).

4. An HGIS plant based substation according to claim 1, characterized in that: the high-voltage side bus of the transformer substation body (100) adopts an overhead bus (3), and a framework (4) at the end part of the overhead bus (3) is close to the extension transformer substation (200).

5. An HGIS plant based substation according to claim 1, characterized in that: the expansion transformer substation (200) is internally provided with a container type SVG device (210), an HGIS device (220), a main transformer (230) and a steel structure prefabricated assembly type distribution box (240) in sequence along the length direction of the expansion transformer substation from an inlet.

6. An HGIS plant based substation according to claim 5, characterized in that: and a maintenance channel is arranged between the container type SVG equipment (210) and the HGIS equipment (220).

7. An HGIS plant based substation according to claim 5, characterized in that: a switch equipment room (241), a secondary equipment room (242), a monitoring room (243), a storage battery room (244) and a small-resistance grounding complete equipment room (246) are arranged in the steel-structure prefabricated distribution box (240), and all the equipment rooms are connected through a channel (245); wherein a switchgear device (250) is arranged within the switchgear room (241).

8. An HGIS plant based substation according to claim 7, characterized in that: the main transformer (230) adopts an outdoor integrated double-coil transformer, and a low-voltage side sleeve of the transformer is connected with the switch cabinet equipment (250) through a copper bar (2).