CN113300265A - SF6 anti-flaming arc looped network cabinet - Google Patents
SF6 anti-flaming arc looped network cabinet Download PDFInfo
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- CN113300265A CN113300265A CN202110462276.1A CN202110462276A CN113300265A CN 113300265 A CN113300265 A CN 113300265A CN 202110462276 A CN202110462276 A CN 202110462276A CN 113300265 A CN113300265 A CN 113300265A
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- 238000005192 partition Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000013022 venting Methods 0.000 claims description 38
- 238000004880 explosion Methods 0.000 claims description 35
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 8
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Patch Boards (AREA)
Abstract
The invention provides an SF6 anti-burning arc ring net cabinet, which comprises a cable chamber, wherein the cable chamber comprises a bottom plate, side plates, a mechanism chamber partition plate, a pressure relief chamber partition plate and a cabinet door, the side plates are arranged on two opposite side edges of the bottom plate in parallel, the same sides of the two side plates are fixedly connected through the pressure relief chamber partition plate, one ends of the two side plates, far away from the bottom plate, are fixedly connected through the mechanism chamber partition plate, one sides of the side plates, far away from the pressure relief chamber partition plate, are detachably connected with the cabinet door, and the SF6 anti-burning arc ring net cabinet also comprises a protection plate, wherein the side plates, close to the inner side of the cable chamber, the side of the mechanism chamber partition plate, close to the inner side of the cable chamber and the side of the cabinet door, close to the inner side of the cable chamber, are respectively provided with the protection plate.
Description
Technical Field
The invention relates to the technical field of switch cabinets, in particular to an SF6 anti-flaming arc looped network cabinet.
Background
The arc-burning-prevention ring main unit can temporarily block a fault electric arc when the fault electric arc occurs in the main unit body, the existing national power grid provides requirements for the arc-burning performance of an SF6 ring main unit which is connected to the network, enough insulation is considered, the generation of the internal electric arc is avoided, a reliable interlocking device for preventing misoperation and a device for reliably releasing electric arc energy are required to be adopted, a flame-retardant insulating material is required to be adopted, the damage of high-temperature gas is reduced, the existing ring main unit body is thin, partition baffles of each interval are arranged inside a cable chamber, the arc-burning-prevention effect is poor, the box body can be punctured by the arc-burning in a short time, the adjacent partitions are affected, and the test requirements cannot be met.
In view of this, an SF6 arc-protection ring main unit structure with longer protection time under the arc-protection effect is needed.
Disclosure of Invention
In view of this, the invention provides an SF6 arc-proof looped network cabinet capable of effectively prolonging the protection time and having a better protection effect on adjacent compartments.
The technical scheme is that the SF6 anti-flaming arc looped network cabinet comprises a cable chamber, wherein the cable chamber comprises a bottom plate, side plates, a mechanism chamber partition plate, a pressure relief chamber partition plate and a cabinet door, the side plates are arranged on two opposite side edges of the bottom plate in parallel, the same sides of the two side plates are fixedly connected through the pressure relief chamber partition plate, one ends of the two side plates, far away from the bottom plate, are fixedly connected through the mechanism chamber partition plate, and one sides of the side plates, far away from the pressure relief chamber partition plate, are detachably connected with the cabinet door.
On the basis of above technical scheme, it is preferred, the guard plate is all installed to the one side that the cable chamber inboard was kept away from to the curb plate and the one side that the mechanism room baffle kept away from the cable chamber inboard.
On the basis of the technical scheme, preferably, the protection plate comprises an insulation plate and an aluminum-zinc-coated plate, the insulation plate is attached to the surface of the aluminum-zinc-coated plate, and the insulation plate is located between the aluminum-zinc-coated plate and the inner wall or the outer wall of the cable chamber.
On the basis of the technical scheme, preferably, the surface of the side plate is provided with a limiting protrusion, and the protection plate is tightly mounted on the limiting protrusion, so that a gap exists between the surface of the side plate and the protection plate.
Still further preferably, the cable chamber structure further comprises a fastening cap, the fastening cap is fastened and installed on one surface, away from the cable chamber, of the mechanism chamber partition plate, a cavity structure is formed between the fastening cap and the mechanism chamber partition plate, the cavity structure is communicated with the outside, and a wiring through hole is formed in the position, located below the fastening cap, of the mechanism chamber partition plate.
On the basis of the technical scheme, preferably, insulating mud is filled in a cavity between the fastening cap and the mechanism chamber partition plate.
On the basis of the technical scheme, the explosion venting device is preferred to further comprise an explosion venting sheet, a pressure venting opening is formed in the pressure venting chamber partition plate, and the explosion venting sheet is fixedly installed at the pressure venting opening.
On above technical scheme's basis, it is preferred, the one end of letting out the piece that explodes is equipped with the joint arch, and the protruding outstanding edge of letting out the piece that explodes of joint is on the plane and letting out the piece that explodes, lets out the piece lid and establishes when the one side of keeping away from the cable chamber at the pressure release opening, and the joint arch is supported selectively and is held the one side that lies in the cable chamber inboard at the pressure release chamber baffle, let out the piece that explodes and keep away from the one side fastening connection that the bellied one end of joint and pressure release chamber baffle kept away from the cable chamber.
On the basis of the technical scheme, preferably, the explosion venting sheet and the clamping protrusions are adjacent, reinforcing ribs are arranged along the length direction of the two side edges, and the reinforcing ribs are vertically and fixedly installed on the surface of the explosion venting sheet.
On the basis of the technical scheme, preferably, a clamping groove is formed in one end, close to the cabinet door, of the side plate, a buckle is fixedly installed at the position, corresponding to the clamping groove, of the cabinet door, the buckle protrudes out of the surface of the cabinet door, a supporting protrusion is arranged below one end, away from the cabinet door, of the buckle, the cabinet door is embedded into the clamping groove through the buckle, and the cabinet door is supported on the inner side surface of the clamping groove through the supporting protrusion to achieve the fastening installation of the cabinet door.
Compared with the prior art, the SF6 anti-arcing ring main unit has the following beneficial effects:
(1) the SF6 anti-arcing ring main unit structure adopts the protection plate to protect the inner side of the cable chamber, so that the mechanical strength of the inner wall is enhanced, and the anti-arcing capability is enhanced;
(2) in order to further improve the capability of resisting the arcing accident, the protective plate structure arranged on the side plate is improved, and the limiting protrusion structure is arranged, so that an air gap structure is formed between the protective plate and the side plate, on one hand, the difficulty of the arcing breakdown of the side plate is increased, on the other hand, the air gap can play a role in buffering, and the protective plate is prevented from being in direct contact with the side plate, so that a better buffering effect is achieved;
(3) in the invention, a fastening cap is also arranged between the mechanism chamber and the cable chamber so as to protect a wire channel, and insulating mud can be arranged in the fastening cap, so that the sealing function is realized on one hand, and the insulating mud can also play a role in insulating and buffering on the other hand, so that the arc burning prevention capability is improved;
(4) the cabinet door is installed in a hanging buckle mode, so that the cabinet door is prevented from being easily linked with a cable chamber in the conventional hinged installation, and the cabinet body is also impacted and damaged in the arcing accident.
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 the drawings without creative efforts.
Fig. 1 is an axonometric view of an SF6 arc-proof ring main unit according to the invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is an exploded view of the SF6 arc-proof ring main unit according to the present invention;
fig. 4 is an exploded view of a pressure relief chamber partition plate in the SF6 arc protection ring main unit according to the present invention;
fig. 5 is a cross-sectional view of a side plate of the SF6 arc-proof ring main unit according to the present invention;
fig. 6 is a front view of a buckle 9 in the SF6 arcing prevention ring main unit according to the present invention;
fig. 7 is a partially enlarged view of a portion a in fig. 2.
In the figure: 1-bottom plate, 2-side plate, 21-limit bulge, 22-clamping groove, 3-mechanism chamber partition plate, 31-wiring through hole, 4-pressure relief chamber partition plate, 41-pressure relief opening, 5-cabinet door, 6-protection plate, 61-insulation plate, 62-aluminum-zinc-coated plate, 7-fastening cap, 8-explosion relief sheet, 81-clamping bulge, 82-reinforcing rib, 9-buckle and 91-abutting bulge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, with reference to fig. 2-7, the SF6 anti-flaming arc looped network cabinet of the invention comprises a bottom plate 1, side plates 2, a mechanism chamber partition plate 3, a pressure relief chamber partition plate 4, a cabinet door 5 and a protection plate 6, wherein the side plates 2 are arranged in parallel on two opposite side edges of the bottom plate 1 and are perpendicular to the bottom plate 1, the same side edges of the two side plates 2 are fixedly connected through the pressure relief chamber partition plate 4, one ends of the two side plates 2 far away from the bottom plate 1 are fixedly connected through the mechanism chamber partition plate 3, one side of the side plate 2 far away from the pressure relief chamber partition plate 4 is detachably connected with the cabinet door, the bottom plate 1, the two side plates 2, the mechanism chamber partition plate 3, the pressure relief chamber partition plate 4 and the cabinet door 5 enclose to form a cable chamber, and the protection plate 6 is fixedly installed on one side of the side plates 2, the mechanism chamber partition plate 3 and the cabinet door 5 close to the inner side of the cable chamber.
In the above embodiment, the arc-burning accident is easily generated in the cable chamber, so that the protection plate 6 is installed on the other partitions except the pressure relief chamber partition 4 and the bottom plate 1, thereby playing the role of arc-burning prevention.
In the specific embodiment, the protection plate 6 is installed on one surface of the side plate 2 away from the inner side of the cable chamber and one surface of the mechanism chamber partition plate 3 away from the inner side of the cable chamber.
In the above embodiment, because the mechanism room sets up adjacent with the cable chamber, and the indoor complicated transmission switch structure of structure that generally is provided with of mechanism, in order to avoid the arcing accident to cause the damage to the transmission switch structure, consequently strengthen the processing to mechanism room baffle 3, guard plate 6 is all installed to the inside and outside two sides of mechanism room baffle department, thereby play better enhancement and the effect of preventing arcing to mechanism room baffle 3, the curb plate 2 of cable chamber can be adjacent with adjacent other functional cavity, consequently also have higher intensity and prevent arcing performance in order to guarantee curb plate 2, guard plate 6 is all installed to the inside and outside both sides at curb plate 2.
In a specific embodiment, the shielding plate 6 comprises an insulating plate 61 and an aluminum-clad zinc plate 62, wherein the insulating plate 61 is attached to the surface of the aluminum-clad zinc plate 62, and the insulating plate 61 is positioned between the aluminum-clad zinc plate 62 and the inner wall or the outer wall of the cable chamber.
In the above embodiment, the aluminum-coated zinc plate 62 located at the outer side can absorb the high-heat gas and impact generated during the arcing accident, and the subsequent residual wave can be absorbed by the insulating plate 61 or the inner wall of the corresponding cable chamber.
In the embodiment, the surface of the side plate 2 is provided with a limit protrusion 21, and the shielding plate 6 is mounted on the limit protrusion 21, so that a gap exists between the appearance of the side plate 2 and the shielding plate 6.
In the above embodiments, the gap is covered by the aluminum-zinc-coated plate 62, and the insulating plate 61 and the side plate 2 are separated by the limiting protrusion 21, so as to form a certain gap space, which can increase the difficulty of arc breakdown on the one hand, and on the other hand, the impact generated during the arc accident can be buffered through a section of air gap after passing through the aluminum-zinc-coated plate 62 and the insulating plate 61, so as to enhance the buffering effect, in fact, in the conventional technology, the protection plate 6 is directly and tightly attached to the side plate 2, and the arc impact is more easily transmitted to the side plate 2 when acting on the protection plate 6, so that the reinforcing effect and the buffering effect of the protection plate 6 are actually not large, and a good safety protection effect is really desired to be achieved, and the strength requirement on the side plate 2 is higher, therefore, the air gap structure in the above embodiments can solve the problem, and no sacrifice is made in the material and cost of the side panels 2 and the corresponding protective panels 6.
In the above embodiment, specifically, the limiting protrusion 21 is formed by press-molding the side plate 2, the limiting protrusion 21 has a hollow structure, the material consumption can be reduced by the press-molding, and the hollow structure formed after the press-molding can also enhance the cushioning effect.
In the specific embodiment, the cable compartment structure further comprises a fastening cap 7, the fastening cap 7 is fixedly mounted on one surface, away from the cable compartment, of the mechanism compartment partition plate 3, a cavity structure is formed between the fastening cap 7 and the mechanism compartment partition plate 3, the cavity structure is communicated with the outside, and a wiring through hole 31 is formed in the position, below the fastening cap 7, of the mechanism compartment partition plate 3.
In the above embodiment, need set up wiring channel between cable chamber and the mechanism room, in order to avoid pressure release in-process pressure directly to cause the impact to the mechanism room inner structure through wiring channel and destroy well, consequently keep away from the one side installation fastening cap 7 of cable chamber at mechanism room baffle 3, wiring through-hole 31 is used for through the wiring, fastening cap 7 then shelters from wiring through-hole 31 to can effectively prevent to strike and directly get into the people and say that the mechanism is indoor through wiring through-hole 31.
In a specific embodiment, the cavity between the fastening cap 7 and the mechanism chamber partition 3 is filled with insulating mud.
In the above embodiment, in order to avoid the impact wave from the side outlet to the mechanism chamber after entering the fastening cap 7, the insulating mud is adopted to fill the inside of the fastening cap 7, so that the sealing effect is achieved, and the impact wave is prevented from entering the fastening cap 7.
In the specific embodiment, the explosion venting sheet 8 is further included, the pressure venting chamber partition plate 4 is provided with a pressure venting opening 41, and the explosion venting sheet 8 is tightly installed at the pressure venting opening 41.
In the above embodiment, pressure release chamber partition 4 is not provided with protection plate 6 on its surface because it needs to be used for the pressure release, and pressure release opening 41 has been seted up on pressure release chamber partition 4, and pressure release opening 41 is used for communicating cable chamber and pressure release chamber, and detachable mounting lets out explosion piece 8 on pressure release opening 41, lets out explosion piece 8 and is used for the pressure release, and detachable connected mode can change, reduces the maintenance cost.
In a specific embodiment, one end of the explosion venting sheet 8 is provided with a clamping protrusion 81, the clamping protrusion 81 protrudes from the plane where the explosion venting sheet 8 is located and the edge of the explosion venting sheet 8, when the explosion venting sheet 8 is to be arranged on a surface of the pressure relief opening 41 away from the cable chamber, the clamping protrusion 81 selectively abuts against a surface of the pressure relief chamber partition plate 4 located on the inner side of the cable chamber, and one end of the explosion venting sheet 8 away from the clamping protrusion 81 is fixedly connected with a surface of the pressure relief chamber partition plate 4 away from the cable chamber.
In the above embodiments, as shown in fig. 4, the bottom of the explosion venting sheet 8 is provided with a clamping protrusion 81, the clamping protrusion 81 is used for being clamped on one side surface of the pressure relief chamber partition plate 4 opposite to the explosion venting sheet 8, so that the clamping protrusion 81 and the body of the explosion venting sheet 8 are respectively abutted against two side surfaces of the pressure relief chamber partition plate 4 opposite to each other, thereby achieving the purpose of limiting installation, the end of the explosion venting sheet 8 opposite to the end provided with the clamping protrusion 18 is fastened and connected with the pressure relief chamber partition plate 4 through a bolt structure, in the above embodiments, the explosion venting sheet 8 can be directly positioned and installed on the pressure relief opening 41 through a plugging mode, and then the explosion venting sheet 8 is fastened and installed through a bolt structure, it should be understood that the width of the explosion venting sheet 8 is greater than the width of the pressure relief opening 41, and the length of the explosion venting sheet 8 is also greater than the length of the pressure relief opening 41.
In a specific embodiment, reinforcing ribs 82 are arranged along the length direction on two sides of the explosion venting sheet 8 adjacent to the clamping protrusions 81, and the reinforcing ribs 82 are vertically and fixedly installed on the surface of the explosion venting sheet 8.
In the above embodiment, in order to achieve a good pressure relief effect and prevent the explosion venting sheet 8 from deforming and failing under the action of pressure, the reinforcing ribs 82 are arranged on two adjacent sides of the multiple explosion venting sheets 8 along the clamping protrusion 81 in the present application, so that the explosion venting sheets 8 can be prevented from being bent along the length direction of the reinforcing ribs 82, and the clamping protrusion 81 can slide out of the pressure relief opening 41 to fail.
In a specific embodiment, a clamping groove 22 is formed in one end, close to the cabinet door 5, of the side plate 2, a buckle 9 is fixedly installed at a position, corresponding to the clamping groove 22, of the cabinet door 5, the buckle 9 protrudes out of the surface of the cabinet door 5, a supporting protrusion 91 is arranged below one end, far away from the cabinet door 5, of the buckle 9, the cabinet door 5 is embedded into the clamping groove 22 through the buckle 9, and therefore the cabinet door is installed at an opening of a cable chamber, after the buckle 9 is embedded into the clamping groove 22, the supporting protrusion 91 at the tail end of the buckle 9 is arranged to selectively support the inner wall of the clamping groove 22, and therefore the buckle 9 is prevented from being separated from the cabinet door 5 and the cable chamber, and the purpose of fixedly connecting the cabinet door 5 and the cable chamber is achieved.
Among the prior art, cabinet door 5 is connected with the cable chamber through the mode of articulated connection more, therefore, the impact that the arcing accident produced very easily destroys the coupling mechanism of cabinet door 5, thereby lead to whole cabinet body to scrap, if adopt the mounting means among the above-mentioned embodiment, when cabinet door 5 receives the impact, the effort then conducts to buckle 9 and the joint groove 22 that corresponds on, buckle 9 is an independent structure of fastening installation, consequently, can change when it destroys, and joint groove 22 suffers to destroy the part that can correspond to joint groove 22 and dismantle the change, buckle 9 is in cabinet door 5's both sides evenly distributed simultaneously, the atress is also more even, can directly not lead to the whole destruction of cable chamber.
By adopting the ring main unit, the fault current of the ring main unit can reach 1s under 20kA, which is higher than the 20kA and 0.5s requirements of the national network arcing test.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a SF6 anti-flaming arc looped netowrk cabinet, includes the cable chamber, the cable chamber includes bottom plate (1), curb plate (2), mechanism room baffle (3), pressure release room baffle (4) and cabinet door (5), curb plate (2) parallel arrangement is on bottom plate (1) relative both sides limit, and the same one side of two curb plates (2) is through pressure release room baffle (4) fixed connection, and mechanism room baffle (3) fixed connection is passed through to the one end that bottom plate (1) were kept away from in two curb plates (2), and one side that pressure release room baffle (4) were kept away from in curb plate (2) can be dismantled with cabinet door (5) and be connected, its characterized in that still includes guard plate (6), guard plate (6) are all installed to the one side that curb plate (2) are close to the cable chamber inside, the one side that mechanism room baffle (3) are close to the cable chamber inside and the one side that cabinet door (5) are close to the cable chamber inside.
2. The SF6 ring main unit of claim 1, wherein a surface of the side plate (2) far away from the inside of the cable chamber and a surface of the mechanism chamber partition plate (3) far away from the inside of the cable chamber are both provided with a protection plate (6).
3. The SF6 ring main unit for preventing arcing in claim 1, wherein the protection plate (6) comprises an insulation plate (61) and an aluminum-coated zinc plate (62), the insulation plate (61) is attached to the surface of the aluminum-coated zinc plate (62), and the insulation plate (61) is located between the aluminum-coated zinc plate (62) and the inner wall or the outer wall of the cable chamber.
4. The SF6 ring main unit for preventing arcing in claim 1, wherein the surface of the side plate (2) is provided with a limiting protrusion (21), and the protection plate (6) is tightly fixed on the limiting protrusion (21), so that a gap exists between the surface of the side plate (2) and the protection plate (6).
5. The SF6 anti-arcing ring main unit as recited in claim 1, further comprising a fastening cap (7), wherein the fastening cap (7) is fastened and installed on a surface of the mechanism chamber partition plate (3) far away from the cable chamber, a cavity structure is formed between the fastening cap (7) and the mechanism chamber partition plate (3), the cavity structure is communicated with the outside, and a wiring through hole (31) is formed in a position of the mechanism chamber partition plate (3) below the fastening cap (7).
6. The SF6 arcing proof ring main unit as claimed in claim 5, wherein the cavity between the fastening cap (7) and the mechanism room partition plate (3) is filled with insulating mud.
7. The SF6 arcing-proof ring main unit as recited in claim 1, further comprising a pressure relief sheet (8), wherein the pressure relief chamber partition plate (4) is provided with a pressure relief opening (41), and the pressure relief sheet (8) is fastened and installed at the pressure relief opening (41).
8. The SF6 anti-flaming arc-ring net cabinet as claimed in claim 7, wherein a clamping protrusion (81) is disposed at one end of the explosion venting sheet (8), the clamping protrusion (81) protrudes out of the plane of the explosion venting sheet (8) and the edge of the explosion venting sheet, the explosion venting sheet (8) covers the surface of the pressure-releasing opening (41) away from the cable chamber, the clamping protrusion (81) selectively abuts against the surface of the pressure-releasing chamber partition plate (4) located inside the cable chamber, and the end of the explosion venting sheet (8) away from the clamping protrusion (81) is tightly connected with the surface of the pressure-releasing chamber partition plate (4) away from the cable chamber.
9. The SF6 arc-proof ring main unit as recited in claim 8, wherein the explosion venting sheet (8) is provided with a reinforcing rib (82) along the length direction at two side edges adjacent to the clamping protrusion (81), and the reinforcing rib (82) is vertically and fixedly installed on the surface of the explosion venting sheet (8).
10. The SF6 anti-arcing ring main unit as claimed in claim 1, wherein a clamping groove (22) is formed in one end of the side plate (2) close to the cabinet door (5), a buckle (9) is fixedly installed at a position of the cabinet door (5) corresponding to the clamping groove (22), the buckle (9) protrudes out of the surface of the cabinet door (5), a supporting protrusion (91) is arranged below one end of the buckle (9) away from the cabinet door (5), and the cabinet door (5) is embedded into the clamping groove (22) through the buckle (9) and supported on the inner side surface of the clamping groove (22) through the supporting protrusion (91) to realize the fastening installation of the cabinet door (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110462276.1A CN113300265A (en) | 2021-04-27 | 2021-04-27 | SF6 anti-flaming arc looped network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110462276.1A CN113300265A (en) | 2021-04-27 | 2021-04-27 | SF6 anti-flaming arc looped network cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113300265A true CN113300265A (en) | 2021-08-24 |
Family
ID=77320351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110462276.1A Pending CN113300265A (en) | 2021-04-27 | 2021-04-27 | SF6 anti-flaming arc looped network cabinet |
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| CN211182885U (en) * | 2019-12-27 | 2020-08-04 | 南京紫苹果电气有限公司 | Over-and-under type switch board |
| CN211556444U (en) * | 2020-04-17 | 2020-09-22 | 翟思远 | Auxiliary device is used in electric power engineering construction |
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| CN103401172A (en) * | 2013-07-27 | 2013-11-20 | 广西银河迪康电气有限公司 | Arcing protective cabinet body for ring main cabinet |
| CN204068532U (en) * | 2014-09-05 | 2014-12-31 | 中州华起电机有限公司 | A kind of fire-proof motor insulator |
| CN206976835U (en) * | 2017-06-26 | 2018-02-06 | 北京合纵科技股份有限公司 | A kind of sandwich IAC level high-tension switch cabinet bodies |
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| CN211182885U (en) * | 2019-12-27 | 2020-08-04 | 南京紫苹果电气有限公司 | Over-and-under type switch board |
| CN211556444U (en) * | 2020-04-17 | 2020-09-22 | 翟思远 | Auxiliary device is used in electric power engineering construction |
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Application publication date: 20210824 |
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