CN111786284B - Safety double-circuit breaker room medium-voltage cabinet - Google Patents
Safety double-circuit breaker room medium-voltage cabinet Download PDFInfo
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- CN111786284B CN111786284B CN202010791122.2A CN202010791122A CN111786284B CN 111786284 B CN111786284 B CN 111786284B CN 202010791122 A CN202010791122 A CN 202010791122A CN 111786284 B CN111786284 B CN 111786284B
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- pressure relief
- bus
- voltage cabinet
- medium
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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
- 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
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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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
- 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
- H02B1/306—Accessories, e.g. windows
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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
- 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
- H02B1/38—Hinged covers or doors
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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
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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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
Abstract
The invention provides a safety double-circuit breaker room medium-voltage cabinet, which comprises: the medium-voltage cabinet body is provided with an upper breaker chamber, a lower breaker chamber, a bus chamber, an upper cable chamber and a lower cable chamber which are arranged in the medium-voltage cabinet body; the bus chamber is arranged in the middle of the medium-voltage cabinet body, and the upper part and the lower part of the bus chamber are respectively provided with a baffle plate; left and right upright posts are respectively arranged on the left and right sides of the bus chamber, and the upper and lower ends of the left and right upright posts are respectively connected with a top plate and a bottom plate of the medium-voltage cabinet body; the upper breaker chamber and the lower breaker chamber are arranged at the left side of the bus chamber and are separated by a partition plate arranged in the middle; the upper cable chamber and the lower cable chamber are arranged on the right side of the bus chamber and are separated by a partition plate arranged in the middle; each cabin is provided with an independent pressure relief structure. The technical scheme of the invention solves the problems of safety, use occasion, later maintenance, production cost and the like in the prior art, forms a brand new series, and meets the requirements of market replacement of imported products, national standard compliance, generalization and low cost.
Description
Technical Field
The invention relates to the technical field of alternating-current metal-enclosed switchgear, in particular to a safety double-circuit breaker indoor pressure cabinet.
Background
Similar distribution equipment in the current market mainly comprises the following products:
the domestic GG1A cabinet is remodeled, the double circuit breaker is fixedly arranged, and the disconnecting switch is used for the breakpoint. But this kind of product simple structure does not possess "five proofings" function, only simply prevents maloperation mechanism, and the security is poor, and the circuit breaker is fixed to be placed, and routine maintenance is inconvenient. The cabinet body is low in angle steel welding production efficiency and poor in aesthetic property, the cabinet body is rarely used, belongs to a obsolete product, and the existing product is gradually replaced.
Mitsubishi, fuji and other Japanese switch cabinets, the double circuit breaker is removable, put from top to bottom. However, the product has no grounding switch, and the five-prevention function is incomplete and does not accord with domestic standards. The switch cabinet, the circuit breaker and the operating mechanism have larger difference between the structure size and the mechanical principle and main stream products in the cabinet and internationally, and have no interchangeability. The price of the products and spare parts is high, and the cost of the user is increased.
The ZS1 cabinet type of the ABB company, the double circuit breakers are all removable, and the double circuit breakers are provided with grounding switches, so that domestic and international standards are met. However, the circuit breaker is placed in a left-right double row, the width of the cabinet body is large, the space requirement on the electric room is high, and the circuit breaker does not meet the use condition in some occasions and has high price.
In a word, the existing products have the problems of poor safety, no compliance with the national standard, high manufacturing cost, high later maintenance and manufacturing cost and the like, and can not meet the use requirements.
Disclosure of Invention
According to the technical problem, a safety double-circuit breaker indoor pressure cabinet is provided. An upper breaker chamber, a lower breaker chamber, a bus chamber, an upper cable chamber and a lower cable chamber are respectively arranged in the medium-voltage cabinet; the double circuit breakers share the bus, the space of the cabinet body is saved, and each cabin is respectively provided with an independent pressure relief structure; when a certain cabin is subjected to arcing explosion due to faults, the normal operation of other cabins is not influenced, and a safe and reliable pressure relief function is realized; meanwhile, the upper cable chamber and the lower cable chamber are respectively provided with a grounding switch, the grounding switch is interlocked with the front door and the rear door, and the five-prevention door is safe and reliable and has a complete five-prevention function.
The invention adopts the following technical means:
a safety double circuit breaker room medium voltage cabinet comprising: the medium-voltage cabinet body is arranged in an upper breaker chamber, a lower breaker chamber, a bus chamber, an upper cable chamber and a lower cable chamber in the medium-voltage cabinet body;
the bus chamber is arranged in the middle of the medium-voltage cabinet body, and the upper part and the lower part of the bus chamber are respectively provided with a baffle plate; left and right upright posts are respectively arranged on the left and right sides of the bus chamber, and the upper and lower ends of the left and right upright posts are respectively connected with the top plate and the bottom plate of the medium-voltage cabinet body;
the upper breaker chamber and the lower breaker chamber are arranged on the left side of the bus chamber and separated from the bus chamber by the left upright post, and the upper breaker chamber and the lower breaker chamber are separated by a partition plate arranged in the middle;
the upper cable chamber and the lower cable chamber are arranged on the right side of the bus chamber and separated from the bus chamber by the right upright post, and the upper cable chamber and the lower cable chamber are separated by a partition plate arranged in the middle;
the upper breaker chamber, the lower breaker chamber, the bus chamber, the upper cable chamber and the lower cable chamber are respectively provided with independent pressure relief structures.
Further, the pressure relief structure comprises an upper breaker chamber pressure relief structure, an upper cable chamber pressure relief structure, a lower breaker chamber pressure relief structure, a bus chamber pressure relief structure and a lower cable chamber pressure relief structure.
Further, the pressure release structure of the upper breaker chamber and the pressure release structure of the upper cable chamber are square through holes with pressure release covers;
the lower breaker chamber pressure relief structure comprises a first through hole formed in the lower breaker chamber and a first pressure relief channel connected with the first through hole; the first pressure relief channel is connected with the top plate; the top plate is provided with a first opening matched with the first pressure relief channel;
the bus room pressure relief structure comprises a second through hole formed in the bus room and a second pressure relief channel connected with the second through hole; the second pressure relief channel is connected with the top plate; the top plate is provided with a second opening matched with the second pressure relief channel;
the lower cable chamber pressure relief structure comprises a third through hole formed in the lower cable chamber and a third pressure relief channel connected with the third through hole; the third pressure relief channel is connected with the top plate; and a third opening matched with the third pressure relief channel is formed in the top plate.
Further, the pressure release structure of the lower breaker chamber further comprises a fourth through hole formed in the lower breaker chamber and a fourth pressure release channel connected with the fourth through hole; the fourth pressure relief channel is connected with the top plate; the top plate is provided with a fourth opening matched with the fourth pressure relief channel;
the bus room pressure relief structure further comprises a fifth through hole formed in the bus room and a fifth pressure relief channel connected with the fifth through hole; the fifth pressure relief channel is connected with the top plate; the top plate is provided with a fifth opening matched with the fifth pressure relief channel;
the lower cable chamber pressure relief structure comprises a sixth through hole and a sixth pressure relief channel, wherein the sixth through hole is formed in the lower cable chamber, and the sixth pressure relief channel is connected with the sixth through hole; the sixth pressure relief channel is connected with the top plate; and a sixth opening matched with the sixth pressure relief channel is formed in the top plate.
Further, the first opening and the fourth opening are symmetrically arranged; the second opening and the fifth opening are symmetrically arranged; the third opening and the sixth opening are symmetrically arranged.
Further, the upper cable chamber and the lower cable chamber are respectively provided with a grounding switch, the grounding switch is connected with a grounding switch operation shaft through a connecting rod, the front end of the grounding switch operation shaft is provided with a lock catch, and the front door and the rear door of the middle cabinet body are respectively provided with lock holes matched with the lock catch.
Further, three hoisting angle steels are additionally arranged at the top of the medium-voltage cabinet body.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a safety double-breaker-chamber medium-voltage cabinet which is respectively provided with an upper breaker chamber, a lower breaker chamber, a bus chamber, an upper cable chamber and a lower cable chamber, wherein each chamber is respectively provided with an independent pressure relief structure; when a certain cabin is subjected to arcing explosion due to faults, the normal operation of other cabins is not influenced, and a safe and reliable pressure relief function is realized;
2. the safety double-circuit breaker room medium-voltage cabinet provided by the invention has the advantages that the double circuit breakers share the bus, and the cabinet body space is saved.
3. The safety double-circuit breaker chamber medium-voltage cabinet provided by the invention is characterized in that the upper cable chamber and the lower cable chamber are respectively provided with the grounding switch, the grounding switch is interlocked with the front door and the rear door, and the safety double-circuit breaker chamber medium-voltage cabinet is safe and reliable and has a complete five-prevention function.
4. According to the safe double-breaker-chamber medium-voltage cabinet provided by the invention, the three lifting angle steels are additionally arranged at the top of the medium-voltage cabinet body, so that the supporting weak point of the cabinet body structure is effectively solved, when the cabinet body is lifted and transported or placed for a long time, the deformation of the upper breaker chamber is small, and the valve mechanism can normally act, so that the maintenance work is reduced.
For the reasons, the invention can be widely popularized in the fields of alternating current metal closed switch equipment and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of the compartment distribution of a safety double circuit breaker compartment medium voltage cabinet assembly of the present invention.
FIG. 2 is a schematic diagram of a pressure relief channel according to the present invention.
Fig. 3 is a schematic view of the pressure relief channel and the lifting angle steel according to the present invention.
Fig. 4 is a schematic diagram of the mechanical interlocking of the grounding switch and the cabinet door of the present invention.
In the figure: 1. an upper breaker chamber; 2. a lower breaker chamber; 3. a bus bar chamber; 4. a cable loading chamber; 5. a lower cable chamber; 6. a partition plate; 7. a left upright post; 8. a right column; 9. a top plate; 10. a bottom plate; 11. a pressure relief structure of the upper breaker chamber; 12. a pressure relief structure of the upper cable chamber; 13. a lower breaker chamber pressure relief structure; 14. a bus chamber pressure release structure; 15. a lower cable chamber pressure relief structure; 16. hoisting angle steel; 17. a grounding switch; 18. a connecting rod; 19. a ground switch operating shaft; 20. locking; 21. a lock hole.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations 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 "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown in fig. 1, the present invention provides a safety double-circuit breaker chamber medium voltage cabinet, which is formed by bolting an aluminum zinc plated plate after being processed by a CNC machine using a multiple bending process, comprising: the medium-voltage cabinet body is provided with an upper breaker chamber 1, a lower breaker chamber 2, a bus bar chamber 3, an upper cable chamber 4 and a lower cable chamber 5 which are arranged in the medium-voltage cabinet body; the bus chamber 3 is arranged in the middle of the medium-voltage cabinet body, and the upper and lower parts of the bus chamber 3 are respectively provided with a baffle 6; left and right sides of the bus room 3 are respectively provided with a left upright post 7 and a right upright post 8, and the upper and lower ends of the left upright post 7 and the right upright post 8 are respectively connected with a top plate 9 and a bottom plate 10 of the medium-voltage cabinet body; the upper breaker chamber 1 and the lower breaker chamber 2 are arranged at the left side of the bus chamber 3 and separated from the bus chamber 3 by a left upright post 7, and the upper breaker chamber 1 and the lower breaker chamber 2 are separated by a middle baffle 6; the upper cable chamber 4 and the lower cable chamber 5 are arranged on the right side of the bus bar chamber 3 and are separated from the bus bar chamber 3 by a right upright post 8, and the upper cable chamber 4 and the lower cable chamber 5 are separated by a middle baffle 6; the circuit breakers are respectively arranged in an upper circuit breaker chamber 1 and a lower circuit breaker chamber 2 at the front side of the cabinet, and are preferably handcart type vacuum circuit breakers with rated currents of 630A-3150A, the circuit breakers are convenient to install and high in universality, and only the circuit breaker trolley is pushed out during maintenance and replacement, so that power failure is not required; the device of the invention arranges a shared bus chamber 3 in the middle of the cabinet body, the incoming lines of two medium-voltage loops are completed through a set of bus system, and the upper and lower layers at the rear part are an upper cable chamber 4 and a lower cable chamber 5; the outgoing line copper bar, the cable, the mutual inductor and the grounding switch of the circuit breaker are respectively arranged in an upper cable chamber 4 and a lower cable chamber 5, and all the compartments are closed by using metal plates and are mutually independent.
As shown in fig. 2, the upper breaker chamber 1, the lower breaker chamber 2, the bus bar chamber 3, the upper cable chamber 4, and the lower cable chamber 5 are provided with independent pressure release structures, respectively. The pressure relief structure comprises an upper breaker chamber pressure relief structure 11, an upper cable chamber pressure relief structure 12, a lower breaker chamber pressure relief structure 13, a bus chamber pressure relief structure 14 and a lower cable chamber pressure relief structure 15. The upper breaker chamber pressure relief structure 11 and the upper cable chamber pressure relief structure 12 are square through holes with pressure relief covers; the lower breaker chamber pressure relief structure 13 comprises a first through hole formed in the lower breaker chamber 2 and a first pressure relief channel connected with the first through hole; the first pressure relief channel is connected with the top plate 9; the top plate 9 is provided with a first opening matched with the first pressure relief channel; the bus room pressure release structure 14 comprises a second through hole formed in the bus room 3 and a second pressure release channel connected with the second through hole; the second pressure relief channel is connected with the top plate 9; the top plate 9 is provided with a second opening matched with the second pressure relief channel; the lower cable chamber pressure release structure 15 comprises a third through hole formed in the lower cable chamber 5 and a third pressure release channel connected with the third through hole; the third pressure relief channel is connected with the top plate 9; the top plate 9 is provided with a third opening matched with the third pressure relief channel; the lower breaker chamber pressure release structure 13 further comprises a fourth through hole formed in the lower breaker chamber 2 and a fourth pressure release channel connected with the fourth through hole; the fourth pressure relief channel is connected with the top plate 9; the top plate 9 is provided with a fourth opening matched with the fourth pressure relief channel; the bus room pressure release structure 14 further comprises a fifth through hole formed in the bus room 3 and a fifth pressure release channel connected with the fifth through hole; the fifth pressure relief channel is connected with the top plate 9; the top plate 9 is provided with a fifth opening matched with the fifth pressure relief channel; the lower cable chamber pressure release structure 15 comprises a sixth through hole arranged on the lower cable chamber 5 and a sixth pressure release channel connected with the sixth through hole; the sixth pressure relief channel is connected with the top plate 9; the top plate 9 is provided with a sixth opening matching the sixth pressure relief channel. As shown in fig. 3, the first opening and the fourth opening are symmetrically arranged; the second opening and the fifth opening are symmetrically arranged; the third opening and the sixth opening are symmetrically arranged.
As shown in fig. 3, three hoisting angle steels 16 are additionally arranged at the top of the medium-voltage cabinet body. The supporting weak point of the cabinet body structure is effectively solved, when the cabinet body is hoisted and transported or placed for a long time, the deformation of the upper breaker chamber is small, and the valve mechanism can normally act, so that maintenance work is reduced.
The upper cable chamber 4 and the lower cable chamber 5 are respectively provided with a grounding switch 17, as shown in fig. 4, the grounding switch 17 is connected with a grounding switch operation shaft 19 through a connecting rod 18, the front end of the grounding switch operation shaft 19 is provided with a lock catch 20, and the front door and the rear door of the middle cabinet body are respectively provided with a lock hole 21 matched with the lock catch 20. When the grounding switch is switched on, the lock catch 20 is in the vertical direction, and the cabinet door can be opened through the oblong hole of the cabinet door. When the grounding switch is opened, the grounding switch operating shaft 19 drives the lock catch 20 to rotate 90 degrees through the connecting rod to hook the lock hole 21 of the cabinet door, and the cabinet door cannot be opened. When the cabinet door is opened, the lock catch 20 pops up, the grounding switch operation shaft 19 can not rotate and can not be opened, and the mistaken power transmission in the maintenance process is prevented, so that the safety problem occurs.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A safety double circuit breaker room medium voltage cabinet, comprising: the medium-voltage cabinet body is arranged in an upper breaker chamber, a lower breaker chamber, a bus chamber, an upper cable chamber and a lower cable chamber in the medium-voltage cabinet body;
the bus chamber is arranged in the middle of the medium-voltage cabinet body, and the upper part and the lower part of the bus chamber are respectively provided with a baffle plate; left and right upright posts are respectively arranged on the left and right sides of the bus chamber, and the upper and lower ends of the left and right upright posts are respectively connected with the top plate and the bottom plate of the medium-voltage cabinet body;
the upper breaker chamber and the lower breaker chamber are arranged on the left side of the bus chamber and separated from the bus chamber by the left upright post, and the upper breaker chamber and the lower breaker chamber are separated by a partition plate arranged in the middle;
the upper cable chamber and the lower cable chamber are arranged on the right side of the bus chamber and separated from the bus chamber by the right upright post, and the upper cable chamber and the lower cable chamber are separated by a partition plate arranged in the middle;
the upper breaker chamber, the lower breaker chamber, the bus chamber, the upper cable chamber and the lower cable chamber are respectively provided with independent pressure relief structures;
the circuit breakers are respectively arranged in an upper circuit breaker chamber and a lower circuit breaker chamber at the front side of the cabinet, and handcart type vacuum circuit breakers with rated currents of 630A-3150A are selected, and the circuit breakers are not required to be powered off when being installed; the circuit breaker outgoing copper bar, the cable, the mutual inductor and the grounding switch are respectively arranged in an upper cable chamber and a lower cable chamber, and each compartment is sealed by using metal plates and is mutually independent;
the common bus chamber is arranged in the middle of the cabinet body, two medium-voltage loop incoming wires are completed through a set of bus system, and an upper cable chamber and a lower cable chamber are arranged at the upper layer and the lower layer at the rear part;
the upper cable chamber and the lower cable chamber are respectively provided with a grounding switch, the grounding switch is connected with a grounding switch operation shaft through a connecting rod, the front end of the grounding switch operation shaft is provided with a lock catch, and the front door and the rear door of the medium-voltage cabinet body are respectively provided with lock holes matched with the lock catch.
2. The safety double circuit breaker chamber medium voltage cabinet of claim 1 wherein the pressure relief structure comprises an upper circuit breaker chamber pressure relief structure, an upper cable chamber pressure relief structure, a lower circuit breaker chamber pressure relief structure, a bus bar chamber pressure relief structure, and a lower cable chamber pressure relief structure.
3. The safety double circuit breaker chamber medium voltage cabinet according to claim 2, wherein the upper circuit breaker chamber pressure release structure and the upper cable chamber pressure release structure are square through holes with pressure release covers;
the lower breaker chamber pressure relief structure comprises a first through hole formed in the lower breaker chamber and a first pressure relief channel connected with the first through hole; the first pressure relief channel is connected with the top plate; the top plate is provided with a first opening matched with the first pressure relief channel;
the bus room pressure relief structure comprises a second through hole formed in the bus room and a second pressure relief channel connected with the second through hole; the second pressure relief channel is connected with the top plate; the top plate is provided with a second opening matched with the second pressure relief channel;
the lower cable chamber pressure relief structure comprises a third through hole formed in the lower cable chamber and a third pressure relief channel connected with the third through hole; the third pressure relief channel is connected with the top plate; and a third opening matched with the third pressure relief channel is formed in the top plate.
4. The safety double-circuit breaker chamber medium voltage cabinet according to claim 3, wherein the lower circuit breaker chamber pressure release structure further comprises a fourth through hole formed in the lower circuit breaker chamber and a fourth pressure release channel connected with the fourth through hole; the fourth pressure relief channel is connected with the top plate; the top plate is provided with a fourth opening matched with the fourth pressure relief channel;
the bus room pressure relief structure further comprises a fifth through hole formed in the bus room and a fifth pressure relief channel connected with the fifth through hole; the fifth pressure relief channel is connected with the top plate; the top plate is provided with a fifth opening matched with the fifth pressure relief channel;
the lower cable chamber pressure relief structure comprises a sixth through hole and a sixth pressure relief channel, wherein the sixth through hole is formed in the lower cable chamber, and the sixth pressure relief channel is connected with the sixth through hole; the sixth pressure relief channel is connected with the top plate; and a sixth opening matched with the sixth pressure relief channel is formed in the top plate.
5. The safety double circuit breaker room medium voltage cabinet of claim 4 wherein the first opening and the fourth opening are symmetrically arranged; the second opening and the fifth opening are symmetrically arranged; the third opening and the sixth opening are symmetrically arranged.
6. The safety double-circuit breaker chamber medium voltage cabinet according to claim 1, wherein three hoisting angle steels are additionally arranged at the top of the medium voltage cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010791122.2A CN111786284B (en) | 2020-08-07 | 2020-08-07 | Safety double-circuit breaker room medium-voltage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010791122.2A CN111786284B (en) | 2020-08-07 | 2020-08-07 | Safety double-circuit breaker room medium-voltage cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN111786284A CN111786284A (en) | 2020-10-16 |
| CN111786284B true CN111786284B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010791122.2A Active CN111786284B (en) | 2020-08-07 | 2020-08-07 | Safety double-circuit breaker room medium-voltage cabinet |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN206806230U (en) * | 2017-06-12 | 2017-12-26 | 裕丰电气有限公司 | Grounding interlocking device |
| CN212366519U (en) * | 2020-08-07 | 2021-01-15 | 大连华锐重工集团股份有限公司 | Safety medium-voltage cabinet with double circuit breaker chambers |
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2020
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| CN201247698Y (en) * | 2008-08-19 | 2009-05-27 | 汕头正超电气集团有限公司 | Grounding switch and cable house door closedown structure of switch cabinet |
| CN101982865A (en) * | 2010-11-02 | 2011-03-02 | 山东鲁亿通电气设备有限公司 | Interlocking device of earthed switch operating mechanism |
| CN202134837U (en) * | 2011-08-09 | 2012-02-01 | 上海航星通用电器有限公司 | Handcart switch cabinet provided with mistakenly-entering preventing electrified interval interlocking device |
| CN202737346U (en) * | 2012-06-11 | 2013-02-13 | 平高集团有限公司 | Switch cabinet |
| CN202840349U (en) * | 2012-09-26 | 2013-03-27 | 重庆施能电力设备有限公司 | Upper pressure release type ring main unit |
| CN103151197A (en) * | 2013-03-06 | 2013-06-12 | 中国船舶重工集团公司第七〇四研究所 | Interlocking device of cable room door and grounding switch of high-voltage switch cabinet |
| CN205489223U (en) * | 2016-02-03 | 2016-08-17 | 吉林澳奇机电集团有限公司 | Handcart -type high voltage switching device |
| CN205753140U (en) * | 2016-04-27 | 2016-11-30 | 厦门理工学院 | A kind of deepened type KYN 40.5kV high-tension switch gear |
| CN206542109U (en) * | 2017-03-01 | 2017-10-03 | 福建中网电气有限公司 | A kind of intermediate switchgear cabinet |
| CN206806230U (en) * | 2017-06-12 | 2017-12-26 | 裕丰电气有限公司 | Grounding interlocking device |
| CN212366519U (en) * | 2020-08-07 | 2021-01-15 | 大连华锐重工集团股份有限公司 | Safety medium-voltage cabinet with double circuit breaker chambers |
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|---|---|
| CN111786284A (en) | 2020-10-16 |
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