CN215680255U - Post insulator connecting fitting and post insulator connecting structure for converter station - Google Patents
Post insulator connecting fitting and post insulator connecting structure for converter station Download PDFInfo
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- CN215680255U CN215680255U CN202120811931.5U CN202120811931U CN215680255U CN 215680255 U CN215680255 U CN 215680255U CN 202120811931 U CN202120811931 U CN 202120811931U CN 215680255 U CN215680255 U CN 215680255U
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- 239000012212 insulator Substances 0.000 title claims abstract description 124
- 230000003014 reinforcing effect Effects 0.000 description 14
- 239000010410 layer Substances 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 12
- 230000006872 improvement Effects 0.000 description 11
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000002356 single layer Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a post insulator connecting fitting and a post insulator connecting structure for a converter station, wherein the post insulator connecting fitting comprises: the support is provided with an upper supporting plate and a lower supporting plate which are arranged at intervals up and down, the upper supporting plate is used for fixedly supporting the upper post insulator, and the lower supporting plate is used for fixedly mounting on the top of the lower post insulator; the lower supporting plate is provided with at least two tubular bus supports for correspondingly supporting at least two tubular buses; the connecting fitting further comprises jumper wire assembly, so that the at least two bus bars are in conductive communication. When the support is used, the upper support plate of the support is connected with the upper support insulator, and the lower support plate of the support is connected with the lower support insulator, so that the support connection of the double-layer support insulator and the conductive communication of the corresponding tubular bus are realized.
Description
Technical Field
The utility model relates to a post insulator connecting hardware fitting and a post insulator connecting structure for a converter station.
Background
The valve hall of converter valve is the enclosure space, and inside sets up equipment such as valve tower, sleeve pipe, voltage transformer, and the pipe generating line is disposed to these equipment, and some pipe generating lines need the jumper wire bridging to realize normal current and switch on.
The existing connecting hardware fitting for realizing the tubular bus bar bridging comprises a basic support, a tubular bus bar support and a jumper wire assembly, wherein the basic support is provided with the tubular bus bar support and is used for supporting a corresponding tubular bus bar, the jumper wire assembly is used for realizing the diversion and communication of the corresponding tubular bus bar, and the jumper wire assembly specifically comprises a wire holding clamp and an aluminum stranded wire matched with the wire holding clamp. During the use, with basic support fixed mounting at corresponding post insulator top, install corresponding tub of generating line on the tub generating line support that corresponds to make corresponding tub generating line intercommunication through the jumper wire assembly, guarantee the normal of different tub generating lines and switch on.
In fact, in the existing converter station valve hall, because the horizontal area of the field is limited, the assembly of the double-layer post insulators is needed, namely, the upper and lower layers of post insulators are needed to be effectively connected, however, the existing connecting hardware fitting is only used for the single-layer post insulators and cannot be applied to the connection and assembly of the double-layer post insulators, and a new connecting hardware fitting needs to be developed in a targeted manner so as to meet the assembly requirement of the double-layer post insulators.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a post insulator connecting hardware fitting, which aims to solve the technical problem that the connecting hardware fitting in the prior art is only used for a single-layer post insulator and cannot be applied to the assembly of a double-layer post insulator; meanwhile, the utility model also provides a post insulator connecting structure for the converter station by using the post insulator connecting fitting.
In order to achieve the purpose, the technical scheme of the post insulator connecting hardware fitting provided by the utility model is as follows: a post insulator link fitting, comprising:
the support is provided with an upper supporting plate and a lower supporting plate which are arranged at intervals up and down, the upper supporting plate is used for fixedly supporting the upper post insulator, and the lower supporting plate is used for fixedly mounting on the top of the lower post insulator;
the lower supporting plate is provided with at least two tubular bus supports for correspondingly supporting at least two tubular buses;
the post insulator connecting hardware fitting further comprises jumper wire assembly used for enabling the at least two pipe buses to be in conductive communication.
The beneficial effects are that: in the support insulator connecting hardware fitting provided by the utility model, the upper support plate of the support is connected with the upper support insulator, and the lower support plate of the support is connected with the lower support insulator, so that the support connection of the double-layer support insulator is conveniently realized, the installation space of a converter station valve hall is saved, the corresponding tubular bus is supported through the tubular bus support, the jumper wire assembly communicates the corresponding tubular bus, and the conductive communication of the tubular bus is realized.
As a further improvement, two lower connecting parts are arranged on the lower supporting plate at intervals and are used for being fixedly assembled with two lower post insulators arranged at intervals, so that the lower supporting plate is fixedly arranged on the top of the lower post insulators.
The beneficial effects are that: two lower support insulators correspond two lower connecting portions respectively for the lower supporting plate can support with two lower support insulators and be connected, makes to support more stably.
As a further improvement, the lower supporting plate is T-shaped, the T-shaped lower supporting plate is provided with three mounting ends, and the mounting ends are respectively provided with the tubular nut supports.
The beneficial effects are that: the three mounting ends corresponding to the T-shaped structures are respectively provided with tubular bus supports, so that the tubular buses can be distributed conveniently.
As a further improvement, the two lower connecting portions are arranged at two of the three mounting ends in a one-to-one correspondence.
The beneficial effects are that: the two lower connecting parts are respectively in one-to-one correspondence with the two lower support insulators, so that the installation is convenient.
As a further improvement, the T-shaped lower supporting plate comprises a transverse main plate section and a vertical main plate section, the vertical main plate section is arranged in the middle of the transverse main plate section, and the upper supporting plate is supported and arranged in the middle of the transverse main plate section through a supporting structure.
The beneficial effects are that: the vertical main board section is arranged in the middle of the transverse main board section, so that the vertical main board section is convenient to intensively arrange, the whole volume is small, and the occupied space is relatively small.
As a further improvement, a grading and shielding ring is supported and installed above the upper supporting plate.
The beneficial effects are that: and voltage-sharing shielding is realized.
The technical scheme of the post insulator connecting structure for the converter station provided by the utility model is as follows:
a post insulator connection structure for a converter station, comprising:
the upper support insulator and the lower support insulator are arranged at intervals up and down;
the connecting hardware fitting is fixedly assembled with the upper support insulator and the lower support insulator;
the connecting hardware fitting comprises a support, the support is provided with an upper supporting plate and a lower supporting plate which are arranged at intervals up and down, the upper support insulator is fixedly supported on the upper supporting plate, the lower supporting plate is fixedly arranged at the top of the lower support insulator, and at least two pipe bus supports are arranged on the lower supporting plate;
at least two tubular buses, correspondingly supported and mounted on the at least two tubular bus supports;
the connecting fitting further comprises jumper wire assembly, so that the at least two bus bars are in conductive communication.
The beneficial effects are that: in the post insulator connecting structure for the converter station, the single-layer post insulator arranged in the valve hall of the converter station is changed into the double-layer post insulator, the double-layer post insulator which is inconvenient to support and connect is supported and connected through the bracket, the upper supporting plate of the bracket is connected with the upper post insulator, the lower supporting plate of the bracket is connected with the lower post insulator, the support and connection of the double-layer post insulator are convenient to realize, the installation space of the valve hall of the converter station is saved, the pipe bus is supported through the pipe bus support, and the jumper wire assembly is used for communicating the corresponding pipe bus so as to realize the conductive communication of the pipe bus.
As a further improvement, two lower support insulators are arranged at intervals, two lower connecting parts are arranged on the lower support plate at intervals, and the two lower support insulators are fixedly assembled in a one-to-one correspondence manner.
The beneficial effects are that: two lower support insulators correspond two lower connecting portions respectively for the lower supporting plate can support with two lower support insulators and be connected, makes to support more stably.
As a further improvement, the lower supporting plate is T-shaped, the T-shaped lower supporting plate is provided with three mounting ends, and the mounting ends are respectively provided with the tubular nut supports.
The beneficial effects are that: the three mounting ends corresponding to the T-shaped structures are respectively provided with tubular bus supports, so that the tubular buses can be distributed conveniently.
As a further improvement, the two lower connecting portions are arranged at two of the three mounting ends in a one-to-one correspondence.
The beneficial effects are that: the two lower connecting parts are respectively in one-to-one correspondence with the two lower support insulators, so that the installation is convenient.
As a further improvement, the T-shaped lower supporting plate comprises a transverse main plate section and a vertical main plate section, the vertical main plate section is arranged in the middle of the transverse main plate section, and the upper supporting plate is supported and arranged in the middle of the transverse main plate section through a supporting structure.
The beneficial effects are that: the vertical main board section is arranged in the middle of the transverse main board section, so that the vertical main board section is convenient to intensively arrange, the whole volume is small, and the occupied space is relatively small.
As a further improvement, a grading and shielding ring is supported and installed above the upper supporting plate.
The beneficial effects are that: and voltage-sharing shielding is realized.
Drawings
Fig. 1 is a schematic structural diagram of a post insulator connection structure for a converter station according to the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic structural view of the jumper assembly of FIG. 1;
FIG. 5 is a schematic structural view of the stent of FIG. 1;
fig. 6 is a top view of fig. 5.
Description of reference numerals:
1. a support; 11. an upper support plate; 111. an upper connecting portion; 12. a lower support section; 121. a transverse main plate section; 122 vertical main board section; 123. a pipe nut support mounting hole; 124. a lower connecting portion; 13. a cylinder; 14. an inner layer reinforcing rib plate; 15. an outer reinforcing rib plate; 2. an upper post insulator; 3. a lower post insulator; 4. a grading and shielding ring; 41. a grading and shielding ring support frame; 5. supporting the pipe nuts; 6. assembling jumpers; 61. clamping the pipe bus; 62. a wire; 7. and (4) a tubular busbar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the post insulator connection structure for a converter station provided by the present invention:
the post insulator connecting structure for the converter station is applied to the direct-current ultrahigh-voltage converter station, is different from the post insulators arranged in a single layer in a current converter station valve hall, can connect the post insulators arranged in the upper layer and the lower layer in the converter station valve hall, and can realize effective conductive communication of a pipe bus.
As shown in fig. 1 to 6, the post insulator connection structure for the converter station includes an upper post insulator (2) and a lower post insulator (3), wherein the upper post insulator (2) and the lower post insulator (3) are supported and connected by a link fitting; the tubular bus (7) is used for conveying current, and the jumper assembly (6) is used for realizing conductive communication of the corresponding tubular bus (7).
The upper supporting insulator (2) and the lower supporting insulator (3) are arranged at intervals along the up-down direction, the upper supporting insulator (2) is arranged for a single column, the lower supporting insulator (3) is arranged for double columns, and the upper supporting insulator (2) and the lower supporting insulator (3) are supported and connected through a connecting hardware fitting.
The connecting fitting specifically comprises a support (1), the support (1) is integrally of an isosceles trapezoid structure and is divided into an upper supporting plate (11) and a lower supporting plate (12), the upper supporting plate (11) and the lower supporting plate (12) are arranged at intervals along the upper direction and the lower direction, the upper supporting plate (11) is used for being connected with the bottom support of the upper supporting insulator (2), and the lower supporting plate (12) is used for being connected with the top support of the lower supporting insulator (3).
A supporting structure is arranged between the upper supporting plate (11) and the lower supporting plate (12), the supporting structure is specifically a cylinder (13) and a reinforcing rib plate, the top of the cylinder (13) is welded with the upper supporting plate (11), and the bottom of the cylinder (13) is welded with the lower supporting plate (12); the outer periphery of the cylinder (13) surrounds the cylinder (13) and is provided with reinforcing rib plates, the reinforcing rib plates are specifically divided into inner reinforcing rib plates (14) and outer reinforcing rib plates (15), the inner reinforcing rib plates (14) surround the cylinder (13) and are vertically arranged with four, the upper ends of the inner reinforcing rib plates are welded with the upper supporting plate (11), the lower ends of the inner reinforcing rib plates are welded with the lower supporting plate (12), the outer reinforcing rib plates (15) surround the cylinder (13) and are obliquely arranged with four, the upper ends of the outer reinforcing rib plates are welded with the upper supporting plate (11), the lower ends of the outer reinforcing rib plates are welded with the lower supporting plate (12), and the inner reinforcing rib plates are used for supporting and connecting the upper supporting plate (11) and the lower supporting plate (12).
The whole upper supporting plate (11) is disc-shaped, a plurality of long holes are formed in the center of the disc, one part of the long holes form an upper connecting part (111), the upper connecting part (111) is used for supporting and connecting the bottom of the upper post insulator (2) with the upper supporting plate (11) through bolts, and the other part of the long holes are used for supporting and installing the voltage-sharing shielding ring (4) and the upper supporting plate (11) through bolts.
The grading and shielding ring (4) specifically comprises a grading and shielding ring support frame (41), and the upper end of the grading and shielding ring support frame (41) is welded with the grading and shielding ring (4); the lower end of the voltage-sharing shielding ring support frame (41) is connected with a long hole support on the upper support plate (11) through a bolt, so that the voltage-sharing shielding ring (4) is installed right above the upper support plate (11), and the voltage-sharing shielding ring (4) is sleeved on the outer peripheral side of the upper post insulator (2) and used for realizing voltage-sharing shielding.
The lower supporting plate (12) is integrally of a T-shaped structure and specifically comprises a vertical main plate section (122) and a transverse main plate section (121) which are integrally designed, and the vertical main plate section (122) is arranged in the middle of the transverse main plate section (121).
The transverse main plate section (121) is provided with two mounting ends which are symmetrically arranged at intervals left and right relative to the central axis of the lower supporting plate (12), and the vertical main plate section (122) is provided with one mounting end which is arranged on the central axis of the lower supporting plate (12); each mounting end is correspondingly provided with a tubular bus support mounting hole (123), a tubular bus support (5) is mounted on each tubular bus support mounting hole (123), the tubular bus support (5) can adopt a support structure in the prior art, and can specifically adopt a tubular bus support in the connecting hardware tool disclosed in the Chinese patent with the publication number of CN105337230B, which is not described herein again.
Two installation end departments of vertical mainboard section (122) still are equipped with down connecting portion (124) respectively, and two lower connecting portion (124) and two lower support insulator (3) one-to-one arrange, and each lower connecting portion (124) are formed by a plurality of elongated holes, and two lower support insulator (3) are connected with lower backup pad (12) support through the bolt in corresponding lower connecting portion (124) department.
The post insulator connecting structure for the converter station further comprises a jumper assembly (6), wherein the jumper assembly (6) comprises three pipe bus holding clamps (61) and a lead (62) positioned between the pipe bus holding clamps (61), each pipe bus holding clamp (61) is of two semi-circular arc structures, and the two semi-circular arc structures are connected through bolt pairs and used for inserting corresponding pipe buses (7); round holes are arranged on the outer side surfaces of the semi-circular arc structures, which are parallel to the corresponding tubular buses (7), and are used for inserting and welding wires (62), so that the tubular buses are electrically communicated.
During the use, last backup pad (11) and last post insulator (2) bottom sprag of support (1) are connected, bottom sprag board (12) are connected with lower post insulator (3) top sprag, then with voltage-sharing shield ring (4) suit in the periphery side of last post insulator (2), and be connected voltage-sharing shield ring support frame (41) with last backup pad (11), be used for the voltage-sharing shielding, secondly corresponding installation department on bottom sprag board (12) installs female support of pipe (5), insert corresponding pipe generating line (7) into corresponding female support of pipe (5), it can to press from both sides (61) pair and install on corresponding pipe generating line (7) to embrace the pipe mother of jumper wire assembly (6) at last.
The post insulator connecting structure for the converter station provided by the embodiment supports and connects the post insulators arranged in the valve hall in a double-layer mode, saves the installation space in the valve hall of the converter station, and realizes the conductive communication of corresponding tubular buses.
The specific embodiment 2 of the post insulator connection structure for the converter station provided by the utility model:
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the upper support plate has a disk-like structure. In this embodiment, the upper supporting plate has a square structure, which increases the supporting area of the upper supporting plate.
The specific embodiment 3 of the post insulator connection structure for a converter station provided by the present invention:
the present embodiment is different from embodiment 1 mainly in that: in embodiment 1, the whole structure of lower support plate is "T" shape, divide into horizontal mainboard section and vertical mainboard section, is equipped with three installation end altogether on horizontal mainboard section and the vertical mainboard section. In this embodiment, the lower support plate is shaped +, three top corners of the shape are provided with one mounting end, and connecting lines of the three mounting ends are shaped +.
The specific embodiment 4 of the post insulator connection structure for a converter station provided by the present invention:
the present embodiment is different from embodiment 1 mainly in that: in example 1, the lower post insulator is a double post arrangement. In this embodiment, the lower post insulators are arranged in a single post, which simplifies the structure.
The utility model also provides an embodiment of the post insulator connecting hardware fitting:
the structure of the post insulator connecting hardware in this embodiment is the same as that of the post insulator connecting hardware in embodiment 1 of the post insulator connecting structure for a converter station, and details are not repeated here.
Of course, in other embodiments, the post insulator connecting hardware may also be the structure of the post insulator connecting hardware in any one of embodiments 2 to 4 of the post insulator connecting structure for a converter station, which is not described herein again.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. Post insulator link fitting, its characterized in that includes:
the support (1) is provided with an upper supporting plate (11) and a lower supporting plate (12) which are arranged at intervals up and down, the upper supporting plate (11) is used for fixedly supporting the upper post insulator (2), and the lower supporting plate (12) is used for fixedly mounting on the top of the lower post insulator (3);
the lower supporting plate (12) is provided with at least two tubular bus supports (5) for correspondingly supporting at least two tubular buses (7);
the post insulator connecting hardware further comprises a jumper assembly (6) for enabling the at least two tubular buses (7) to be in conductive communication.
2. The post insulator connecting fitting according to claim 1, wherein two lower connecting portions (124) are spaced apart from each other on the lower support plate (12) and are adapted to be fixedly fitted to the two spaced apart lower post insulators (3) so that the lower support plate (12) is fixedly mounted on top of the lower post insulators (3).
3. The post insulator connecting fitting according to claim 2, wherein the lower support plate (12) is T-shaped, and the T-shaped lower support plate (12) has three mounting ends, each of which is provided with the tubular busbar support (5).
4. The post insulator link fitting according to claim 3, wherein the two lower connecting portions (124) are arranged at two of the three mounting ends in a one-to-one correspondence.
5. The post insulator connecting fitting according to claim 4, wherein the T-shaped lower support plate comprises a transverse main plate section (121) and a vertical main plate section (122), the vertical main plate section (122) is arranged corresponding to the middle of the transverse main plate section (121), and the upper support plate (11) is supported and arranged in the middle of the transverse main plate section (121) through a support structure.
6. The post insulator connection fitting according to any one of claims 1 to 5, wherein a grading shield ring (4) is supportedly mounted above the upper support plate (11).
7. Post insulator connection structure for converter station, its characterized in that includes:
the upper support insulator (2) and the lower support insulator (3) are arranged at intervals up and down;
the connecting hardware fitting is fixedly assembled with the upper support insulator (2) and the lower support insulator (3);
the connecting fitting comprises a support (1), wherein the support (1) is provided with an upper supporting plate (11) and a lower supporting plate (12) which are arranged at intervals up and down, the upper supporting plate (11) is fixedly supported by the upper supporting plate (2), the lower supporting plate (12) is fixedly arranged at the top of the lower supporting plate (3), and at least two pipe nut supports (5) are arranged on the lower supporting plate (12);
at least two tubular bus bars (7) correspondingly supported and mounted on the at least two tubular bus bar supports (5);
the connecting hardware fitting further comprises a jumper assembly (6) which enables the at least two tubular buses (7) to be in conductive communication.
8. The post insulator connecting structure for a converter station according to claim 7, wherein two lower post insulators (3) are spaced apart from each other, and two lower connecting portions (124) are spaced apart from each other on the lower support plate (12), so that two lower post insulators (3) are fixedly fitted in a one-to-one correspondence.
9. The post insulator connection structure for a converter station according to claim 8, wherein the lower support plate (12) has a T-shape, and the T-shaped lower support plate (12) has three mounting ends, each of which is provided with the tubular busbar support (5).
10. The post insulator connection structure for a converter station according to claim 9, wherein the two lower connection portions (124) are arranged at two of the three mounting ends in a one-to-one correspondence.
11. The post insulator connection structure for a converter station according to claim 10, wherein the T-shaped lower support plate (12) comprises a transverse main plate section (121) and a vertical main plate section (122), the vertical main plate section (122) is arranged corresponding to the middle of the transverse main plate section (121), and the upper support plate (11) is supported and arranged at the middle of the transverse main plate section (121) through a support structure.
12. A post insulator connection structure for a converter station according to any one of claims 7-11, characterized in that a grading shield ring (4) is supportingly mounted above the upper support plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120811931.5U CN215680255U (en) | 2021-04-20 | 2021-04-20 | Post insulator connecting fitting and post insulator connecting structure for converter station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120811931.5U CN215680255U (en) | 2021-04-20 | 2021-04-20 | Post insulator connecting fitting and post insulator connecting structure for converter station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215680255U true CN215680255U (en) | 2022-01-28 |
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ID=79970681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120811931.5U Active CN215680255U (en) | 2021-04-20 | 2021-04-20 | Post insulator connecting fitting and post insulator connecting structure for converter station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215680255U (en) |
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2021
- 2021-04-20 CN CN202120811931.5U patent/CN215680255U/en active Active
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