CN211605746U - Heavy-current medium-voltage alternating-current metal armored fixed switch cabinet - Google Patents
Heavy-current medium-voltage alternating-current metal armored fixed switch cabinet Download PDFInfo
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- CN211605746U CN211605746U CN202020456512.XU CN202020456512U CN211605746U CN 211605746 U CN211605746 U CN 211605746U CN 202020456512 U CN202020456512 U CN 202020456512U CN 211605746 U CN211605746 U CN 211605746U
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- circuit breaker
- bus
- door
- cabinet body
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 title claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a heavy current type medium voltage alternating current metal armor fixed switch cabinet, which comprises a cabinet body, wherein a circuit breaker chamber, a secondary instrument chamber, a small bus chamber, an isolating switch, a current transformer and an isolating switch supporting frame are arranged in the cabinet body, a circuit breaker chamber baffle, a fan box and an axial flow fan are arranged in the circuit breaker, and the circuit breaker is arranged on the circuit breaker chamber baffle; the isolating switch is arranged on the isolating switch support frame; the cabinet body is provided with a rear lower door and a rear upper door, and axial flow fans are arranged at the rear lower door and the rear upper door; the top of the cabinet body is provided with a bus chamber box body, a bus chamber is arranged in the bus chamber box body, and a bus chamber copper busbar is arranged in the bus chamber.
Description
Technical Field
The utility model relates to a cubical switchboard field, concretely relates to fixed cubical switchboard of heavy current type middling pressure alternating-current metal armor.
Background
A high-current medium-voltage AC metal-armored fixed switch cabinet is mainly used for power distribution of power consumers in power plants, metallurgical mines and the like, power receiving and transmission of secondary substations of power system devices, starting of large high-voltage motors and the like, and is used for control, protection and monitoring.
The cubical switchboard of generator export and the cubical switchboard of metallurgical industry substation transformer export all are the heavy current type cabinet body, and the cabinet body adopts channel-section steel welded type structure mostly, and the welding installation is time-consuming and labouring, and the appearance is bulky pleasing to the eye not, and protection level is lower, and the matching nature is very poor when installing with other cabinet body series.
Disclosure of Invention
The utility model aims to solve the technical problem that a can solve the fixed cubical switchboard of heavy current type middling pressure alternating-current metal armor of above-mentioned problem.
The utility model discloses a realize through following technical scheme: a large-current medium-voltage alternating-current metal armored fixed switch cabinet comprises a cabinet body, wherein a circuit breaker chamber, a secondary instrument chamber, a small bus chamber, an isolating switch, a current transformer and an isolating switch supporting frame are arranged in the cabinet body; the isolating switch is arranged on the isolating switch support frame; the cabinet body is provided with a rear lower door and a rear upper door, and axial flow fans are arranged at the rear lower door and the rear upper door; the top of the cabinet body is provided with a bus chamber box body, a bus chamber is arranged in the bus chamber box body, and a bus chamber copper busbar is arranged in the bus chamber.
As a preferred technical scheme, the isolating switch is of a double-blade type for each phase and is arranged at the middle upper part of the switch cabinet.
As a preferable technical scheme, the current transformer is a primary 5000/5 and a secondary 4 winding, and the shape of the current transformer is a bus type.
As an optimal technical scheme, the isolating switch support frame is formed by cutting a thick steel plate by using laser equipment, bending the thick steel plate by using numerical control equipment and finally welding; the circuit breaker chamber partition plate is formed by cutting a thick steel plate by laser, bending and forming by numerical control, welding and spraying.
As a preferred technical scheme, a shutter is installed at the circuit device chamber.
As the preferred technical scheme, the front part of the cabinet body is provided with an instrument room door, a push-pull type observation window, a ventilation grid plate, a lighting lamp, an emergency opening button box, a front door electromagnetic lock and an electrified display; the ventilation grid plate is provided with a plurality of ventilation openings which are communicated with the axial flow fan.
As the preferred technical scheme, the rear upper door, the rear middle door, the rear lower door and the shutter are arranged at the rear part of the cabinet body.
As a preferred technical scheme, the bus chamber box body is made of stainless steel.
The utility model has the advantages that:
1. the isolating switch support frame is formed by cutting a thick steel plate by laser equipment, bending by numerical control equipment and welding, and the machining process is much better than that of channel steel, so that the time is saved; the middle partition plate of the breaker chamber is also made of a thick steel plate through laser cutting, numerical control bending forming and welding spraying, so that the manufactured partition plate is high in strength, good in manufacturability and short in manufacturing time.
2. The other parts of the cabinet body are mostly made of an aluminum-coated zinc plate and an anti-vortex stainless steel plate, CNC (computer numerical control) equipment and laser equipment can be used for batch production, the cabinet body is short in assembly time and good in universality, and the switch cabinet can be well matched with other cabinet bodies and can be series.
3. Forced air cooling is adopted in the cabinet, a special fan box is arranged in a breaker room, a special fan protective cover is arranged on a rear lower door and a rear upper door of the switch cabinet, the marketability of fan equipment is high, the universality is good, and a main loop of the switch cabinet can be not powered off when a fan is replaced.
4. The special louver design can prevent the high-pressure gas from spraying and hurting people. The top bus chamber box body is a stainless steel box body, the problem of heating of the cabinet body of the heavy-current switch cabinet can be effectively solved, and compared with a middle-arranged switch cabinet bus chamber, the bus chamber is good in ventilation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a side view of a switch cabinet of the present invention;
FIG. 2 is a front structure view of the switch cabinet of the present invention;
FIG. 3 is a rear structure view of the switch cabinet of the present invention;
fig. 4 is a front structure diagram of the switch cabinet of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 to 4, the cabinet comprises a cabinet body 1, wherein a circuit breaker chamber a, a secondary instrument chamber B, a small bus chamber D, an isolating switch 2, a current transformer 3 and an isolating switch support frame 5 are arranged in the cabinet body, a circuit breaker 6, a circuit breaker chamber partition plate 7, a fan box 8 and an axial flow fan 9 are arranged in the circuit breaker chamber a, and a circuit breaker is arranged on the circuit breaker chamber partition plate; the isolating switch is arranged on the isolating switch support frame; the cabinet body is provided with a rear lower door 12 and a rear upper door 13, and axial flow fans 9 are arranged at the rear lower door and the rear upper door; the top of the cabinet body is provided with a bus chamber box body, a bus chamber C is arranged in the bus chamber box body, and a bus chamber copper busbar 11 is arranged in the bus chamber.
Wherein, the isolating switch 2 is of a double-blade type for each phase and is arranged at the middle upper part of the switch cabinet.
The current transformer is a primary 5000/5 and adopts a secondary 4 winding, and the appearance of the current transformer is a bus type.
The isolating switch support frame is formed by cutting a thick steel plate by laser equipment, bending by numerical control equipment and finally welding; the circuit breaker chamber partition plate is formed by cutting a thick steel plate by laser, bending and forming by numerical control, welding and spraying.
Wherein a shutter 22 is installed at the circuit device chamber.
Wherein, the front part of the cabinet body is provided with an instrument room door 31, a push-pull type observation window 32, a ventilation grid plate 33, a lighting lamp 35, an emergency opening button box 36, a front door electromagnetic lock 37 and an electrified display 38; the ventilation grid plate is provided with a plurality of ventilation openings which are communicated with the axial flow fan 9.
Wherein, the rear part of the cabinet body is provided with a rear upper door 55, a rear middle door 56, a rear lower door 57, a shutter 22 and a rear door electromagnetic lock 59.
Wherein, the bus chamber box body is made of stainless steel.
The method comprises the steps that according to the model GN22-12/6300A of the isolating switch with the widest appearance, the width of the switch cabinet is determined to be 1600mm by adopting the appearance size and the insulation distance required by national standard and adding a proper amount of margin; according to GN22 disconnecting switch, 5000A breaker and 5000/5 4 winding current transformer, reasonable bus installation structure size and insulation distance required by national standard, adding proper margin to determine the height and depth of the switch cabinet as 2400mm,1850 mm. The upper part of the cabinet body is a bus chamber, and the height and the depth of the cabinet body are 475mm and 1050 mm.
The positions of the disconnecting switches GN22-12/6300A need to be checked, the structures of the incoming line type switch cabinet and the bus-coupled switch cabinet need to be checked, the disconnecting switches of the two switch cabinet structures are required to be located at the same position, and it is guaranteed that the operating mechanism and the operating pull rod can be manufactured in a unified mode and debugged in a unified mode. GN22 isolator adopts and leans on the wall mounting means, installs on the support frame that 4mm thick steel plate welded becomes. The bus mounted at the upper end of the isolating switch can be a bus-bar cabinet structure which upwards penetrates through the cabinet top, and can also extend towards the rear part, and the bus-bar cabinet structure penetrates out of the cabinet top from the rear upper part of the cabinet body, so that reasonable insulating space and mounting position must be checked. The installation position of the isolating switch is arranged in the middle of the cabinet body and is arranged close to the wall at the rear upper part. Considering that the cantilever structure at the operation side of the main shaft of the isolating switch is easy to deform under the action of force, a positioning bent plate is arranged between the shaft head and the right side plate of the switch cabinet to control the deformation of the main shaft during operation.
The affirmation of circuit breaker position needs be according to GN22 isolator's front face mounted position, because 6300A isolator adopts every looks double-pole type structure, and the looks interval is 400mm, and the circuit breaker looks interval is 275mm, and the circuit breaker can't realize every relative phase with isolator and adjust well, must look for suitable position installation circuit breaker, ensures that the leading-out generating line of double-pole type isolator lower extreme can match with circuit breaker last port. The circuit breaker is arranged on the left side of the front middle part of the cabinet body.
A ventilation cooling system of the circuit breaker is arranged in a box body at the lower part of the circuit breaker, and a detachable 60W axial flow fan and a reverse-preventing shutter are adopted, so that the arc fault of the switch cabinet can be effectively prevented. Axial fans are also installed on the rear door and the rear upper part of the switch cabinet for forced air cooling. The stainless steel box of the bus chamber is provided with a shutter for heat dissipation.
The current transformer is to be installed on a support frame welded by a 4mm thick steel plate (the support frame and the GN22 isolating switch support frame are integrally manufactured), the position is determined according to the installation condition of a circuit breaker, and the bus installation rationality of a bus-coupled switch cabinet is also examined. According to the upper complaint condition, the phase transformers A, B and C of the switch cabinet are obliquely installed, the upper left is an A phase, the middle is a B phase, and the lower right is a C phase. Each phase is mounted on a support frame with a separate stainless steel plate to ensure no eddy current interference.
The disconnecting switch operating mechanism of the switch cabinet adopts an electric mechanism, is positioned on the right side of the circuit breaker and is responsible for operating the GN22 disconnecting switch. The mechanism is installed on the support that 8# channel-section steel was made, and the channel-section steel lower part links to each other with the median septum of installation circuit breaker, and the median septum will have sufficient thickness and bearing structure and just can guarantee that circuit breaker and operating device can not produce destructive deformation under very big effort. The middle clapboard adopts a 4mm steel plate U-shaped bending structure. A manual operation hole is required to be formed in the right front upright post of the switch cabinet, so that manual operation in the absence of an operation power supply is guaranteed. The operation hole is closed by a special small door and cannot be opened at will, and the special small door is provided with a closing and opening button, an emergency stop button and other components.
The main bus of the switch cabinet penetrates through a stainless steel box of a bus chamber, a three-phase bus of a 12kV main loop adopts a 125 x 10mm pure copper rectangular bus, and 4 buses of each phase penetrate through the stainless steel bus box at the upper part of the cabinet body. The bus is threaded through the cabinet top, insulation is guaranteed by protection of an insulating sheath, and the cabinet top plate is made of an anti-vortex stainless steel plate. 4 copper buses traversing each phase of the bus box need to be fixed on the insulator by a special bus hardware fitting, so that the insulation distance and the support strength are ensured.
The bus in the cabinet is supported by 50X 50mm bakelite columns for a high-temperature electric furnace, and the cross arm is arranged between the side plates of the cabinet body, so that the cabinet has high mechanical strength, high insulating property and durability.
The bus insulation sheath from the lower rear side of the cabinet body to the adjacent cabinet is arranged on a stainless steel plate, the phases A, B and C are arranged in an upper-middle-lower structure, the transverse main bus adopts a 125-x 10mm pure copper rectangular bus, 4 buses in each phase need to be supported by a special hardware fitting and an insulator, and the strength and the relative position are ensured.
The observation windows of the front middle door and the lower door of the switch cabinet adopt a sliding window structure sliding left and right, can be hung and locked fixedly and are used for infrared temperature measurement.
The rear upper door and the rear middle door of the cabinet body adopt cover plates; the back lower door adopts a split type and is provided with a middle door frame, and a fan is arranged on the door.
The secondary connection of the cabinet body is completely protected by adopting a metal buckle box.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (8)
1. The utility model provides a fixed cubical switchboard of heavy current type middling pressure metal armor which characterized in that: the intelligent cabinet comprises a cabinet body, wherein a circuit breaker chamber, a secondary instrument chamber, a small bus chamber, an isolating switch, a current transformer and an isolating switch supporting frame are arranged in the cabinet body, a circuit breaker chamber partition plate, a fan box and an axial flow fan are arranged in the circuit breaker, and the circuit breaker is arranged on the circuit breaker chamber partition plate; the isolating switch is arranged on the isolating switch support frame; the cabinet body is provided with a rear lower door and a rear upper door, and axial flow fans are arranged at the rear lower door and the rear upper door; the top of the cabinet body is provided with a bus chamber box body, a bus chamber is arranged in the bus chamber box body, and a bus chamber copper busbar is arranged in the bus chamber.
2. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the isolating switch is of a double-blade type for each phase and is arranged on the middle upper part of the switch cabinet.
3. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the current transformer is a primary 5000/5 and adopts a secondary 4 winding, and the appearance of the current transformer is a bus type.
4. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the isolating switch support frame is formed by cutting a thick steel plate by laser equipment, bending the thick steel plate by numerical control equipment and finally welding; the circuit breaker chamber partition plate is formed by cutting a thick steel plate by laser, bending and forming by numerical control, welding and spraying.
5. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the circuit device chamber is provided with a shutter.
6. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the front part of the cabinet body is provided with an instrument room door, a push-pull type observation window, a ventilation grid plate, an illuminating lamp, an emergency opening button box, a front door electromagnetic lock and an electrified display; the ventilation grid plate is provided with a plurality of ventilation openings which are communicated with the axial flow fan.
7. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the rear part of the cabinet body is provided with a rear upper door, a rear middle door, a rear lower door and a shutter.
8. A high-current medium-voltage ac metal-clad fixed switch cabinet according to claim 1, wherein: the bus chamber box body is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456512.XU CN211605746U (en) | 2020-04-01 | 2020-04-01 | Heavy-current medium-voltage alternating-current metal armored fixed switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020456512.XU CN211605746U (en) | 2020-04-01 | 2020-04-01 | Heavy-current medium-voltage alternating-current metal armored fixed switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN211605746U true CN211605746U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020456512.XU Active CN211605746U (en) | 2020-04-01 | 2020-04-01 | Heavy-current medium-voltage alternating-current metal armored fixed switch cabinet |
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| Country | Link |
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| CN (1) | CN211605746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649752A (en) * | 2020-12-17 | 2022-06-21 | 浙江衢能电气有限公司 | A KYN28 cabinet emergency stop device |
| CN116885571A (en) * | 2023-09-05 | 2023-10-13 | 山东捷远电气股份有限公司 | Mining double-circuit high-voltage switch cabinet |
-
2020
- 2020-04-01 CN CN202020456512.XU patent/CN211605746U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649752A (en) * | 2020-12-17 | 2022-06-21 | 浙江衢能电气有限公司 | A KYN28 cabinet emergency stop device |
| CN114649752B (en) * | 2020-12-17 | 2024-12-03 | 浙江衢能电气有限公司 | A KYN28 cabinet emergency stop device |
| CN116885571A (en) * | 2023-09-05 | 2023-10-13 | 山东捷远电气股份有限公司 | Mining double-circuit high-voltage switch cabinet |
| CN116885571B (en) * | 2023-09-05 | 2023-12-12 | 山东捷远电气股份有限公司 | Mining double-circuit high-voltage switch cabinet |
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