CN220822273U - Step type high-voltage switch cabinet - Google Patents
Step type high-voltage switch cabinet Download PDFInfo
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- CN220822273U CN220822273U CN202322363091.2U CN202322363091U CN220822273U CN 220822273 U CN220822273 U CN 220822273U CN 202322363091 U CN202322363091 U CN 202322363091U CN 220822273 U CN220822273 U CN 220822273U
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- 238000005192 partition Methods 0.000 claims abstract description 44
- 230000001012 protector Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 21
- 238000009434 installation Methods 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a step-type high-voltage switch cabinet, which comprises a cabinet body, wherein the cabinet body is divided into a left chamber and a right chamber, the step-type high-voltage switch cabinet comprises a middle partition board, and the middle partition board divides the left chamber into an upper chamber and a lower chamber; the middle partition plate is of an integrated structure and comprises a horizontal high-level plate, a horizontal low-level plate and an inclined plate which is arranged between the high-level plate and the low-level plate and connects the high-level plate with the low-level plate, and a step structure is formed among the high-level plate, the low-level plate and the inclined plate; according to the step-type high-voltage switch cabinet, the space structure of the high-voltage switch cabinet is changed, the original planar middle partition plate is replaced by the step-type middle partition plate, the middle partition plate is in a step shape, and the steps are lifted near the lower touch box, so that the distance between the middle partition plate and the lower touch box can be effectively increased under the condition that the installation of original elements is not affected, the electric field intensity distribution in the cabinet is relatively balanced, and adverse high-strength electric fields are prevented from being formed locally.
Description
Technical Field
The utility model relates to a switch cabinet, in particular to a stepped high-voltage switch cabinet.
Background
The high-voltage switch cabinet is the most important electrical equipment in a power distribution room, plays a role in connecting and disconnecting an electrical circuit, and integrates a plurality of functions such as measurement, protection and the like. Therefore, it has a significant role in the safe operation of the power distribution system. However, in actual operation, we find that the high-voltage switch cabinet is one of devices with more operation faults, and the fault parts of the high-voltage switch cabinet mostly appear on the lower contact box of the circuit breaker. The reason is that the traditional planar middle partition board is difficult to balance electric fields in terms of space separation due to more circuits and elements in the cabinet, so that the distance between the lower touch box and the middle partition board is even less than 40mm (the distance between the upper touch box and the middle partition board is 180 mm). This unbalanced arrangement results in a higher electric field strength in the lower contact box area. Although the lower contact box itself has a high electrical strength, the field strength does not break down the lower contact box during a certain period of time. However, the aging speed of the insulating medium is greatly affected by temperature and field intensity, the aging of the insulating material of the lower contact box is accelerated by the action of a long-term strong electric field and various factors such as high temperature, humidity and the like, the insulating strength is reduced, breakdown is formed under the action of the strong electric field, and electric accidents are caused.
Therefore, under the existing technical conditions, how to ensure that the lines and elements in the cabinet are not affected by the improvement of the structure, the field intensity distribution in the cabinet is relatively balanced, and the local high-intensity electric field is avoided. The method for reducing the electric field intensity in the cabinet and guaranteeing the service function and the service life of the insulating medium is a problem to be solved urgently by those skilled in the art at present.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to provide a stepped high-voltage switch cabinet. The purpose of designing the high-voltage switch cabinet is to reduce the electric field intensity in the cabinet.
In order to solve the technical problems, the utility model is realized by the following scheme: the utility model relates to a step-type high-voltage switch cabinet, which comprises a cabinet body, wherein the cabinet body is divided into a left chamber and a right chamber, the step-type high-voltage switch cabinet comprises a middle partition board, and the middle partition board divides the left chamber into an upper chamber and a lower chamber;
The middle partition plate is of an integrated structure and comprises a horizontal high-level plate, a horizontal low-level plate and an inclined plate which is arranged between the high-level plate and the low-level plate and connects the high-level plate with the low-level plate, and a step structure is formed among the high-level plate, the low-level plate and the inclined plate;
The high-level plate, the low-level plate and both sides of the sloping plate are vertically bent upwards to form side wings, wherein the side wings on the high-level plate and the side wings on the low-level plate are provided with a plurality of side wing assembly holes;
The high-level plate is connected with a back beam connecting plate at one end far away from the sloping plate, and a plurality of back beam assembly holes are formed in the back beam connecting plate;
The lower plate extends outwards to form a front beam connecting plate at one end far away from the inclined plate, and a plurality of front beam assembly holes are formed in the front beam connecting plate.
Further, a vacuum circuit breaker is installed in the right chamber;
The upper chamber is internally provided with a plurality of first insulating struts, an upper touch box and an overcurrent protector, wherein each first insulating strut is provided with a bus sleeve, the upper touch box is electrically connected with each bus sleeve, the upper touch box is also electrically connected with the overcurrent protector, the overcurrent protector is fixed on the middle partition plate, and the upper touch box is electrically connected with the first end of the vacuum circuit breaker;
In the lower cavity, install down touch box, current transformer, ground sword, second insulating pillar and arrester respectively, current transformer install in the middle septum lower bottom surface, its first end with it touches the box electricity down and is connected, its second end electricity is connected the first end of ground sword, ground sword second end is connected the arrester, go up touch the box, it with vacuum circuit breaker's second end electricity is connected.
Further, in the right chamber, a handcart is also installed.
Further, the middle separator is a galvanized steel sheet.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the step-type high-voltage switch cabinet, the space structure of the high-voltage switch cabinet is changed, the original planar middle partition plate is replaced by the step-type middle partition plate, the middle partition plate is in a step shape, and the steps are lifted near the lower touch box, so that the distance between the middle partition plate and the lower touch box can be effectively increased under the condition that the installation of original elements is not affected, the electric field intensity distribution in the cabinet is relatively balanced, and adverse high-strength electric fields are prevented from being formed locally.
2. The middle partition plate is formed by punching and bending galvanized steel plates, and the front and rear mounting holes can enable the middle partition plate to be mounted on the front and rear cross beams, the left and right sides of the middle partition plate are bent, the bending strength of the middle partition plate is enhanced, and the mounting requirements of other elements are met. The left and right bent side wings are provided with the assembly holes, and the assembly holes can be assembled with the convex nails on the side plates of the switch cabinet through holes, so that the installation is convenient, and the step type middle partition plate and the cabinet body are integrally formed to improve the strength.
3. The step-type high-voltage switch cabinet is easy to assemble, the overall strength is improved, the space division in the cabinet is more reasonable, the formation of a local high-strength electric field is avoided, and the electric field strength distribution is more balanced.
4. The step-type high-voltage switch cabinet also reduces the aging speed of the lower touch box under the action of a strong electric field, ensures the service function and the service life of insulating materials of the lower touch box, and ensures the safe operation of electric products.
Drawings
Fig. 1 is a block diagram of a stepped high voltage switchgear of the present utility model.
Fig. 2 is a structural view of a separator plate according to the present utility model.
The reference numerals in the drawings: the upper contact box 1, the vacuum circuit breaker 2, the handcart 3, the lower contact box 4, the bus sleeve 5, the insulating support column 6, the overcurrent protector 7, the middle partition 8, the current transformer 9, the ground knife 10, the lightning arrester 11, the cable 12, the rear beam connecting plate 81, the lower plate 82, the side wings 83, the side wing assembly holes 84, the upper plate 85 and the front beam connecting plate 86.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the present utility model, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, and thus the protection scope of the present utility model is more clearly and clearly defined. It should be apparent that the described embodiments of the utility model are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1: the specific structure of the utility model is as follows:
Referring to fig. 1-2, the stepped high voltage switch cabinet of the present utility model includes a cabinet body, the cabinet body is divided into a left chamber and a right chamber, the stepped high voltage switch cabinet includes a middle partition board 8, the middle partition board 8 divides the left chamber into an upper chamber and a lower chamber;
The middle partition plate 8 is an integral structure, and comprises a horizontal high-level plate 85, a horizontal low-level plate 82 and an inclined plate which is arranged between the high-level plate 85 and the low-level plate 82 and connects the high-level plate 85 with the low-level plate 82, wherein a step structure is formed among the high-level plate 85, the low-level plate 82 and the inclined plate;
The two sides of the high-level plate 85, the low-level plate 82 and the sloping plate are vertically bent upwards to form side wings 83, wherein the side wings 83 on the high-level plate 85 and the side wings 83 on the low-level plate 82 are respectively provided with a plurality of side wing assembly holes 84;
The end of the high-level plate 85, which is far away from the sloping plate, is connected with a back beam connecting plate 81, and a plurality of back beam assembly holes are formed in the back beam connecting plate 81;
The lower plate 82 has an end far from the inclined plate extending outwards to form a front beam connecting plate 86, and a plurality of front beam assembly holes are formed in the front beam connecting plate 86.
A preferred technical scheme of the embodiment is as follows: in the right chamber, a vacuum circuit breaker 2 is installed;
A plurality of first insulating struts 6, an upper contact box 1 and an overcurrent protector 7 are respectively arranged in the upper chamber, wherein each first insulating strut 6 is provided with a bus sleeve 5, the upper contact box 1 is respectively electrically connected with each bus sleeve 5, the upper contact box 1 is also electrically connected with the overcurrent protector 7, the overcurrent protector 7 is fixed on the middle partition plate 8, and the upper contact box 1 is electrically connected with the first end of the vacuum circuit breaker 2;
In the lower cavity, install down and touch box 4, current transformer 9, ground sword 10, second insulating pillar 13 and arrester 11 respectively, current transformer 9 install in the middle septum 8 lower bottom surface, its first end with touch box 4 electricity down, its second end electricity is connected the first end of ground sword 10, ground sword 10 second end is connected arrester 11, go up touch box 1, it is with the second end electricity of vacuum circuit breaker 2 is connected.
A cable 12 is connected to a circuit node between the current transformer 9 and the earth blade 10, and the cable 12 extends to an external power supply.
A preferred technical scheme of the embodiment is as follows: in the right chamber, a trolley 3 is also mounted.
A preferred technical scheme of the embodiment is as follows: the middle partition plate 8 is a galvanized steel plate.
Example 2:
The step-type high-voltage switch cabinet can solve the problems that: under the condition of ensuring that circuits and elements in the cabinet are not affected, the field intensity in the cabinet is relatively balanced, and the local high-strength electric field is avoided so as to reduce the electric field intensity in the cabinet.
In order to solve the above technical problems, a middle partition plate 8 is installed in the cabinet body, and the middle partition plate 8 is arranged in a step structure to replace the traditional planar middle partition plate. The middle partition plate 8 is arranged in the cabinet body, the space structure of the high-voltage switch cabinet can be changed, the middle partition plate 8 is in a step shape, and the steps are raised near the lower contact box 4, so that the distance between the middle partition plate 8 and the lower contact box 4 can be effectively increased under the condition that the installation of original elements is not affected, the electric field intensity distribution in the cabinet is relatively balanced, and adverse high-strength electric fields are prevented from being formed locally. The step type middle partition plate is formed by punching and bending galvanized steel plates, the front and rear mounting holes can enable the middle partition plate 8 to be mounted on the front and rear cross beams, the left side and the right side of the middle partition plate 8 are bent, the bending strength of the middle partition plate is enhanced, and the mounting requirements of other elements are met. The left and right bent side wings 83 are provided with side wing assembly holes which can be assembled with convex nails on the side plates of the switch cabinet through holes, so that the assembly is convenient, and the overall strength of the assembled stepped middle partition plate and the cabinet body can be improved.
In summary, the step-type high-voltage switch cabinet is easy to assemble and the overall strength is improved. 2. The stepped high-voltage switch cabinet provided by the utility model has the advantages that the space division in the cabinet is more reasonable, the formation of a local high-strength electric field is avoided, and the electric field intensity distribution is more balanced. 3. The step-type high-voltage switch cabinet reduces the aging speed of the lower touch box under the action of a strong electric field, ensures the use function and the service life of insulating materials of the lower touch box, and ensures the safe operation of electric products.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.
Claims (4)
1. The step-type high-voltage switch cabinet comprises a cabinet body, wherein the cabinet body is divided into a left chamber and a right chamber, and is characterized by comprising a middle partition plate (8), and the middle partition plate (8) divides the left chamber into an upper chamber and a lower chamber;
The middle partition plate (8) is of an integrated structure and comprises a horizontal high-level plate (85), a horizontal low-level plate (82) and an inclined plate which is arranged between the high-level plate (85) and the low-level plate (82) and connects the high-level plate (85) with the low-level plate (82), and a step structure is formed among the high-level plate (85), the low-level plate (82) and the inclined plate;
The high-level plate (85), the low-level plate (82) and two sides of the inclined plate are vertically bent upwards to form side wings (83), wherein the side wings (83) on the high-level plate (85) and the side wings (83) on the low-level plate (82) are respectively provided with a plurality of side wing assembly holes (84);
The high-level plate (85) is connected with a back beam connecting plate (81) at one end far away from the inclined plate, and a plurality of back beam assembly holes are formed in the back beam connecting plate (81);
the lower plate (82) extends outwards to form a front beam connecting plate (86) at one end far away from the inclined plate, and a plurality of front beam assembly holes are formed in the front beam connecting plate (86).
2. A stepped high voltage switchgear according to claim 1, characterized in that in the right chamber a vacuum circuit breaker (2) is installed;
A plurality of first insulating struts (6), an upper contact box (1) and an overcurrent protector (7) are respectively arranged in the upper cavity, wherein bus bushing (5) is respectively arranged on each first insulating strut (6), the upper contact box (1) is respectively electrically connected with each bus bushing (5), the upper contact box (1) is also electrically connected with the overcurrent protector (7), the overcurrent protector (7) is fixed on the middle partition plate (8), and the upper contact box (1) is electrically connected with the first end of the vacuum circuit breaker (2);
In the lower cavity, install down touch box (4), current transformer (9), ground sword (10), second insulating pillar (13) and arrester (11) respectively, current transformer (9) install in the lower bottom surface of middle septum (8), its first end with touch box (4) electricity down and be connected, its second end electricity is connected the first end of ground sword (10), ground sword (10) second end is connected arrester (11), go up touch box (1), it with the second end electricity of vacuum circuit breaker (2) is connected.
3. A stepped high voltage switchgear according to claim 1, characterized in that in the right chamber a trolley (3) is also mounted.
4. A stepped high voltage switchgear according to claim 1, characterized in that the intermediate barrier (8) is a galvanized steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322363091.2U CN220822273U (en) | 2023-09-01 | 2023-09-01 | Step type high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322363091.2U CN220822273U (en) | 2023-09-01 | 2023-09-01 | Step type high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220822273U true CN220822273U (en) | 2024-04-19 |
Family
ID=90698043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322363091.2U Active CN220822273U (en) | 2023-09-01 | 2023-09-01 | Step type high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220822273U (en) |
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2023
- 2023-09-01 CN CN202322363091.2U patent/CN220822273U/en active Active
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