CN217607488U - Frame-type shunt capacitor group indoor grouping arrangement structure - Google Patents
Frame-type shunt capacitor group indoor grouping arrangement structure Download PDFInfo
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- CN217607488U CN217607488U CN202220886066.5U CN202220886066U CN217607488U CN 217607488 U CN217607488 U CN 217607488U CN 202220886066 U CN202220886066 U CN 202220886066U CN 217607488 U CN217607488 U CN 217607488U
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Abstract
The application provides an indoor grouping arrangement structure of a frame-type parallel capacitor bank, which comprises the frame-type parallel capacitor bank, a cable shaft, an operation and maintenance access port, at least two safety fences and at least three partition walls; at least two frame-type parallel capacitor banks are arranged in parallel inside the at least three partition walls; the cable shaft is arranged between at least two frame-type parallel capacitor banks; the operation and maintenance access port is arranged between at least two frame-type parallel capacitor banks; at least two safety fences are respectively arranged on one side of at least two frame-type parallel capacitor banks. This application is through grouping frame-type parallel capacitor group according to its main transformer low pressure side generating line that connects, and frame-type parallel capacitor group of different groups arranges in different independent rooms, and the operation and maintenance of frame-type parallel capacitor group and power cable inlet wire in different independent rooms overhauls mutual noninterference, has reduced the transformer substation construction engineering volume, increases transformer substation construction flexibility and operation and maintenance and overhaul convenience.
Description
Technical Field
The application relates to the technical field of power supply, in particular to an indoor grouping arrangement structure of a frame-type parallel capacitor bank.
Background
In the urban electric power construction process, site selection and construction of the transformer substation are difficult. Due to the influence of urban environment and land factors, the transformer substation is mostly set as an indoor transformer substation. Meanwhile, in order to provide capacitive reactive power which can be adjusted in a stepped manner for a power grid to supplement redundant inductive reactive power, reduce active power loss of the power grid and improve voltage of the power grid, a frame-type parallel capacitor bank needs to be configured on the low-voltage side of the transformer substation.
In the prior art, a frame-type parallel capacitor bank mainly includes two arrangement structures. The first arrangement structure is an outdoor independent arrangement structure, and the specific mode is that the parallel capacitor banks and the auxiliary equipment thereof are arranged in a security fence outdoors, and all the parallel capacitor banks are isolated by a firewall. The second arrangement is an indoor independent arrangement, in which the parallel capacitor banks and their accessories are arranged in independent rooms, and the parallel capacitor banks are independent of each other.
In the technical scheme, however, the outdoor independent arrangement structure is not unified with the overall planning of the urban indoor transformer substation, so that the planning uniformity of the urban transformer substation is reduced; the indoor independent arrangement structure causes a large amount of construction engineering, and reduces the construction flexibility and operation and maintenance rationality of the urban transformer substation.
SUMMERY OF THE UTILITY MODEL
The application provides an indoor grouping and arranging structure of a frame-type parallel capacitor bank, which aims to solve the problem that an outdoor independent arranging structure in the prior art is not unified with the integral planning of an indoor transformer substation of a city, and reduces the planning uniformity of the city transformer substation; the indoor independent arrangement structure causes a large amount of construction engineering, and reduces the construction flexibility and operation and maintenance rationality of the urban transformer substation.
The application provides an indoor grouping arrangement structure of frame-type shunt capacitor group includes: the system comprises at least two frame-type parallel capacitor banks, a cable shaft, an operation and maintenance access port, at least two safety fences and at least three partition walls;
the at least two frame-type parallel capacitor banks are arranged inside the at least three partition walls in parallel, and the frame-type parallel capacitor banks are grouped according to the main transformer low-voltage side buses connected with the frame-type parallel capacitor banks;
the cable shaft is arranged between at least two frame-type parallel capacitor banks and is arranged close to one side of the partition wall;
the operation and maintenance access port is arranged between at least two frame-type parallel capacitor banks and is close to the other side of the partition wall;
the at least two safety fences are respectively arranged on one side of the at least two frame-type parallel capacitor banks, and the safety fences are arranged close to the operation and maintenance inlet and outlet.
In a preferred embodiment of the application, at least two of said framed shunt capacitor banks, when belonging to the same group, share the same cable shaft.
In a preferred embodiment of the present application, the cable shaft is used to connect a power cable incoming line to an external electrical interface, and the power cable incoming line is a power cable line from a frame-type parallel capacitor bank to a main transformer low-voltage side switch cabinet.
In a preferred embodiment of the present application, when at least two of the frame-type parallel capacitor banks belong to different groups, the frame-type parallel capacitor banks in the different groups operate independently and do not interfere with each other.
In a preferred embodiment of the present application, the partition wall arranges at least two of the framed parallel capacitor banks as independent rooms.
The application provides a frame-type indoor group arrangement structure of shunt capacitor group compares in prior art, has following beneficial effect:
(1) This application is through grouping frame-type shunt capacitor group according to its main transformer low pressure side generating line that connects, and frame-type shunt capacitor group of different groups arranges in the independent room of difference, and the operation and maintenance of frame-type shunt capacitor group and power cable inlet wire in the different independent rooms overhauls mutual noninterference, has reduced the engineering volume of transformer substation construction, has increased the flexibility and the operation and maintenance convenience of transformer substation construction.
(2) According to the indoor grouping arrangement structure of the parallel capacitor banks, when operation and maintenance of a certain main transformer or the parallel capacitor banks are required, the operation and maintenance of the parallel capacitor banks of different banks are not interfered with each other; for example, when an electrical accident occurs to a certain group of parallel capacitor banks or an internal power cable thereof, secondary accidents at the low-voltage side of other main transformers cannot be caused due to the mutual independence of the parallel capacitor banks of different groups.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an indoor grouping arrangement of a frame-type parallel capacitor bank according to an embodiment of the present application;
fig. 2 is a schematic diagram of an indoor group arrangement of a frame-type parallel capacitor bank according to an application example of the present application;
description of reference numerals:
1-frame type parallel capacitor bank, 10-first parallel capacitor bank, 11-second parallel capacitor bank, 12-third parallel capacitor bank, 13-fourth parallel capacitor bank, 14-fifth parallel capacitor bank, 15-sixth parallel capacitor bank; 2-a cable shaft; 3-operation and maintenance inspection of the inlet and outlet; 4-a security fence; 5-partition wall.
Detailed Description
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
In order to facilitate the technical solution of the present application, some concepts related to the present application will be described below.
In this application, terms such as "first," "second," "third," and "fourth," as well as "fifth," "sixth," etc., are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprising," "including," "providing," "for," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that it includes not only the elements that are explicitly listed, but also other elements not explicitly listed. Moreover, the words "upper", "lower", "one side", "the other side", "inside", and the like in this application describe the orientation of the product as it is being used in practice or the position of the figures in this application and therefore do not make the solution of this application unclear.
Examples
Referring to fig. 1, an embodiment of the present application provides an indoor grouping arrangement of a frame-type parallel capacitor bank 1, including: the system comprises at least two frame-type parallel capacitor banks 1, a cable shaft 2, an operation and maintenance access port 3, at least two safety fences 4 and at least three partition walls 5;
at least two frame-type parallel capacitor banks 1 are arranged inside at least three partition walls 5 in parallel, and the frame-type parallel capacitor banks 1 are grouped according to main transformer low-voltage side buses connected with the frame-type parallel capacitor banks 1;
the cable shaft 2 is arranged between at least two frame-type parallel capacitor banks 1 and is close to one side of the partition wall 5;
the operation and maintenance access port 3 is arranged between at least two frame-type parallel capacitor banks 1 and is close to the other side of the partition wall 5;
at least two safety fences 4 are respectively arranged on one side of at least two frame-type parallel capacitor banks 1, and the safety fences 4 are arranged close to the operation and maintenance access port 3.
It should be noted that, in the above scheme, the two frame-type parallel capacitor banks 1 belong to the same group and are both connected to the same main transformer low-voltage side bus, and the frame-type parallel capacitor banks 1 of the same group are all arranged in the same independent room. In fig. 1, the lowermost black line also indicates the partition wall 5, but the black line is not marked in fig. 1.
Further, in an embodiment of the present embodiment, at least two of the frame-type parallel capacitor banks 1 share the same cable shaft 2 when they belong to the same group.
Further, in a specific implementation manner of this embodiment, when at least two of the frame-type parallel capacitor banks 1 belong to different groups, the frame-type parallel capacitor banks 1 in the different groups operate independently and do not interfere with each other.
Further, in a specific implementation manner of this embodiment, the cable shaft 2 is used to connect a power cable incoming line to an external electrical interface, where the power cable incoming line is a power cable from the frame-type parallel capacitor bank 1 to the main transformer low-voltage side switch cabinet.
Further, in a specific implementation manner of the present embodiment, the partition wall 5 arranges at least two of the frame-type parallel capacitor banks 1 as independent rooms.
It should be particularly noted that, as shown in fig. 1, in the embodiment of the present application, the frame-type parallel capacitor banks 1 of the indoor substation are grouped according to the main transformer low-voltage side bus to which they are connected, the frame-type parallel capacitor banks 1 that are grouped together by the partition wall 5, that is, two frame-type parallel capacitor banks 1 belong to the same group in the same room, and then the safety fence 4, the operation and maintenance access 3, and the cable shaft 2 are disposed between the two frame-type parallel capacitor banks 1 in the same room, so that when the frame-type parallel capacitor bank 1 in a certain room (on a certain main transformer low-voltage side) fails, the operation of the frame-type parallel capacitor banks 1 in other rooms (on other main transformer low-voltage sides) is not affected, the construction of the substation is more flexible, and the operation and maintenance are more convenient and reasonable.
Application example
Fig. 2 is a schematic structural diagram of indoor arrangement of 330 kv substations in a city by using the indoor group arrangement structure of the application example of the present application. In order to provide the power grid with capacitive reactive power which can be adjusted in a step mode, redundant inductive reactive power is supplemented, the active power loss of the power grid is reduced, and the voltage of the power grid is increased. The schematic diagram of the indoor arrangement structure of the urban 330 kv substation shown in fig. 2 includes 3 main transformers (not marked in the drawing), each independent room is a main transformer, and includes a first main transformer, a second main transformer and a third main transformer, 2 groups of 40Mvar parallel capacitor banks are configured on the 35 kv side (low voltage side) of each main transformer, two sets of parallel capacitor banks are provided on the low voltage side of the first main transformer, and includes a first parallel capacitor bank 10 and a second parallel capacitor bank 11, two sets of parallel capacitor banks are provided on the low voltage side of the second main transformer, and includes a third parallel capacitor bank 12 and a fourth parallel capacitor bank 13, and two sets of parallel capacitor banks are provided on the low voltage side of the third main transformer, and includes a fifth parallel capacitor bank 14 and a sixth parallel capacitor bank 15.
It should be noted that the parallel capacitor banks (including the first parallel capacitor bank 10, the second parallel capacitor bank 11, the third parallel capacitor bank 12, and the like) in the application example of the present application use frame-type equipment, and the parallel capacitor banks are arranged on the two above-ground layers according to the overall layout of the substation.
According to the scheme of the embodiment of the application, the parallel capacitor banks are grouped according to the connected main transformer low-voltage side buses, namely two sets of parallel capacitor banks on the low-voltage side of one main transformer are grouped into one group, and the two sets of parallel capacitor banks in each group are arranged in an independent room. As shown in fig. 2, the first parallel capacitor bank 10 and the second parallel capacitor bank 11 on the kilovolt side (low voltage side) of the first main transformer 35 are grouped and arranged in an independent room, the third parallel capacitor bank 12 and the fourth parallel capacitor bank 13 on the kilovolt side (low voltage side) of the second main transformer 35 are grouped and arranged in an independent room, and the fifth parallel capacitor bank 14 and the sixth parallel capacitor bank 15 on the kilovolt side (low voltage side) of the third main transformer 35 are grouped and arranged in an independent room; each independent room is partitioned by a partition wall 5. Moreover, two safety fences 4, an operation and maintenance access port 3 and a cable shaft 2 are arranged between two sets of parallel capacitor banks in the same group, as can be seen from fig. 2, two safety fences 4, an operation and maintenance access port 3 and a cable shaft 2 are respectively arranged between a first parallel capacitor bank 10 and a second parallel capacitor bank 11, between a third parallel capacitor bank 12 and a fourth parallel capacitor bank 13, and between a fifth parallel capacitor bank 14 and a sixth parallel capacitor bank 15, and the two safety fences 4 are respectively arranged close to the two frame-type parallel capacitor banks 1 and are arranged in parallel; the operation and maintenance access 3 and the cable shaft 2 are respectively arranged on two side partition walls 5 between two sets of parallel capacitor banks in an independent room, for example, on two side partition walls 5 of a first parallel capacitor bank 10 and a second parallel capacitor bank 11 on 35 kilovolt side (low voltage side) of a first main transformer in a first room.
The cable shaft 2 arranged in each independent room is used for connecting power cables of external electrical interfaces through power cable inlet wires, and all the power cable inlet wires in the two sets of parallel capacitor banks in the same group share one cable tunnel.
According to the technical scheme, the parallel capacitor equipment body and the external interface can execute work according to the grouping of the main transformers, and different main transformers are independent and do not interfere with each other. By adopting the indoor grouping arrangement structure of the parallel capacitor banks, when operation and maintenance of a certain main transformer or the parallel capacitor banks are required, the operation and maintenance of the parallel capacitor banks of different banks are not interfered with each other; for example, when an electrical accident occurs to a certain group of parallel capacitor banks or an internal power cable thereof, secondary accidents at the low-voltage side of other main transformers cannot be caused due to the mutual independence of the parallel capacitor banks of different groups.
In addition, the specific structure of the parallel capacitor banks (including the frame-type parallel capacitor bank 1 of fig. 1 and the first parallel capacitor bank 10 of fig. 2, etc.) in fig. 1 and fig. 2 of the embodiments and application examples of the present application is not clear, and the specific structure of the parallel capacitor banks belongs to the common knowledge of those skilled in the art, and the structure does not affect the indoor grouping arrangement of the capacitor banks according to the scheme of the present application, so the specific structure of the parallel capacitor banks does not limit the protection scope of the present application.
It should be particularly noted that the numbers of the frame-type parallel capacitor banks 1, the partition walls 5, the safety fences 4, etc. in the present application are only the optimal numbers selected for more clearly illustrating the arrangement structure of the present application, but those skilled in the art can also select the numbers of the components different from the present application according to actual needs, and the operation principle is the same as that of the present application, so that the application scheme of simply changing the numbers on the basis of the present application is within the protection scope of the present application.
Claims (5)
1. An indoor grouping arrangement of a frame-type shunt capacitor bank, comprising: the system comprises at least two frame-type parallel capacitor banks, a cable shaft, an operation and maintenance access port, at least two safety fences and at least three partition walls;
the at least two frame-type parallel capacitor banks are arranged inside the at least three partition walls in parallel, and the frame-type parallel capacitor banks are grouped according to the main transformer low-voltage side buses connected with the frame-type parallel capacitor banks;
the cable shaft is arranged between at least two frame-type parallel capacitor banks and is arranged close to one side of the partition wall;
the operation and maintenance access port is arranged between at least two frame-type parallel capacitor banks and is close to the other side of the partition wall;
at least two safety fences are respectively arranged on one side of at least two frame-type parallel capacitor banks, and the safety fences are arranged close to the operation and maintenance inlet and outlet.
2. A frame-type shunt capacitor bank indoor group arrangement as claimed in claim 1, wherein at least two of said frame-type shunt capacitor banks, when belonging to the same group, share the same cable shaft.
3. The indoor group layout structure of a frame-type shunt capacitor bank as claimed in claim 2, wherein said cable shaft is used to connect the power cable incoming line to the external electrical interface, said power cable incoming line being the power cable line from the frame-type shunt capacitor bank to the main transformer low side switchgear.
4. A framed indoor bank arrangement of parallel capacitor banks as claimed in claim 2, wherein at least two of said framed parallel capacitor banks belong to different groups, said framed parallel capacitor banks within different groups operate independently of each other without interfering with each other.
5. A framed indoor bank arrangement of shunt capacitors as claimed in claim 1, wherein said partition wall arranges at least two of said framed shunt capacitor banks as separate rooms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220886066.5U CN217607488U (en) | 2022-04-18 | 2022-04-18 | Frame-type shunt capacitor group indoor grouping arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220886066.5U CN217607488U (en) | 2022-04-18 | 2022-04-18 | Frame-type shunt capacitor group indoor grouping arrangement structure |
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| Publication Number | Publication Date |
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| CN217607488U true CN217607488U (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220886066.5U Active CN217607488U (en) | 2022-04-18 | 2022-04-18 | Frame-type shunt capacitor group indoor grouping arrangement structure |
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- 2022-04-18 CN CN202220886066.5U patent/CN217607488U/en active Active
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