CN214957999U - Heavy current high-voltage switch equipment - Google Patents
Heavy current high-voltage switch equipment Download PDFInfo
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- CN214957999U CN214957999U CN202121438535.9U CN202121438535U CN214957999U CN 214957999 U CN214957999 U CN 214957999U CN 202121438535 U CN202121438535 U CN 202121438535U CN 214957999 U CN214957999 U CN 214957999U
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Abstract
The utility model discloses a heavy current high tension switchgear belongs to the high-voltage apparatus field, including generating line room, cable chamber, circuit breaker room. The phase spacing of the circuit breakers is 440mm, the pole spacing is 400mm, and the push stroke is 560 mm; the air insulation switch cabinet structure has the advantages that the rated continuous current of the air insulation clear distance not less than 300mm is 3150A1680mm width KYN61-40.5, the rated continuous current is 3150A, the requirement of the continuous current (temperature rise) 1.1X3150A is met, the problem of switch cabinet supply when the altitude is between 1000 and 2000 meters is thoroughly solved, and the power supply reliability is improved. The utility model discloses switchgear compact structure, flexible operation, use and overhaul very safety.
Description
Technical Field
The utility model belongs to the high-voltage apparatus field relates to a heavy current high tension switchgear.
Background
With the rapid development of economy, the power consumption is larger and larger, and a part of industrial user systems of 40.5kV high-voltage switch cabinets require that the rated continuous current reaches 3150A, so that the large-current contract requirements of 40.5kV national networks and user projects are met, and KYN61-40.5kV high-voltage switch cabinets with the rated continuous current of 3150A and the width of 1680mm are required to be developed.
According to major counter accidents of a power grid, the installation of a switch cabinet requires that an insulating partition plate is forbidden, even if an insulating sheath and a thermal shrinkage material are additionally arranged on a bus, the requirement of air clear distance is met, and the air clear distance of the switch cabinet is not less than 300mm, namely 40.5 KV. In most manufacturers in the industry, the developed rated continuous current reaches 3150A switch cabinet, or is a fixed cabinet, or is a switch cabinet which does not meet the material purchasing standard and the requirement of countermeasures, and the using environment is 1000 meters above sea level and below.
SUMMERY OF THE UTILITY MODEL
In order to overcome above-mentioned prior art, the cubical switchboard is the shortcoming of fixed cabinet or can not satisfy the clean distance requirement of air, the utility model aims to provide a heavy current high tension switchgear.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a high-current high-voltage switch device comprises a cabinet body, wherein a cable chamber, a bus chamber and a breaker chamber are separated from the cabinet body by a partition plate; the cabinet body has the following overall dimensions: the width is 1680mm, the height is 2600mm, and the depth is 3150 mm;
a lower contact box, a current transformer, a first lower branch bus and a first upper branch bus are arranged in the cable chamber; a first exhaust fan is installed at the top end of the outer part of the cable chamber;
a second upper supporting bus and an upper contact box are arranged in the bus chamber; a second exhaust fan is arranged at the top end of the outside of the bus chamber;
breaker and valve mechanism are installed to the circuit breaker indoor, and the looks interval of circuit breaker is 440mm, the utmost point interval is 400mm, pushes away the journey and is 560mm, and the parameter of circuit breaker is: the rated continuous current is 3150A, and the cut-off current is 31.5kA or 25 kA; and a third exhaust fan is installed at the top end of the outer part of the breaker chamber.
Preferably, the distance between the current transformers is 420 mm;
the interphase distances of the first lower branch bus, the first upper branch bus and the second upper branch bus are all 420 mm.
Preferably, the cable chamber is also internally provided with an insulator, a first bus sleeve mounting plate and a lower contact box mounting beam;
and a second bus sleeve, a second bus sleeve mounting plate and an upper contact box mounting beam are also arranged in the bus chamber.
Preferably, the first busbar bushing mounting plate and the second busbar bushing mounting plate are both made of stainless steel plates.
Preferably, the circuit breaker is a clamped pole type circuit breaker.
Preferably, the cabinet body is an aluminum-zinc-coated steel plate with a bending assembly type structure.
Preferably, the first lower support busbar, the first upper support busbar and the second upper support busbar are all TMY100X12 fillet busbars;
preferably, the number of the first exhaust fans, the number of the second exhaust fans and the number of the third exhaust fans are three respectively;
the first exhaust fan, the second exhaust fan and the third exhaust fan are 87W exhaust fans.
Preferably, the cabinet body is provided with a front door plate and a rear door plate, and the front door plate and the rear door plate are respectively provided with a shutter;
the valve mechanism is a folding valve mechanism.
Preferably, the diameter of the contact in the lower contact box and the diameter of the contact in the upper contact box are both 109 mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a heavy current high tension switchgear, including generating line room, cable chamber, circuit breaker room. The phase spacing of the circuit breakers is 440mm, the pole spacing is 400mm, and the push stroke is 560 mm; the air insulation switch cabinet structure has the advantages that the rated continuous current of the air insulation clear distance not less than 300mm is 3150A1680mm width KYN61-40.5, the rated continuous current is 3150A, the requirement of the continuous current (temperature rise) 1.1X3150A is met, the problem of switch cabinet supply when the altitude is between 1000 and 2000 meters is thoroughly solved, and the power supply reliability is improved. The utility model discloses switchgear compact structure, flexible operation, use and overhaul very safety.
Furthermore, the cabinet body is made of high-quality aluminum-zinc coated steel plates, a bending assembly type structure is adopted, and the structure of the cabinet body is specially designed, so that the protection grade IP4X of the armored handcart type high-voltage cabinet shell and the grade IP2X between chambers in the cabinet are met; the plate is processed by numerical control equipment to ensure the material precision, thereby achieving the high precision of the cabinet body.
Furthermore, the cabinet body is internally provided with a five-prevention locking device which has complete and complete functions and can reliably realize the locking of the switch cabinet.
Furthermore, the contact box mounting beam and the bus sleeve mounting plate are designed into an integral stainless steel plate in the switch design, so that eddy current is prevented from being generated when current passes through the integral stainless steel plate.
Further, 3 exhaust fans of 87W are respectively installed on a breaker chamber, a bus chamber and a cable chamber of the switch cabinet, air inlets for shutters are additionally installed on a front door and a rear door plate of the switch cabinet, so that an air channel is smooth, air draft is performed on the air inlets below, hot air in the cabinet can be pumped away from the top of the cabinet during a temperature rise test, and the switch cabinet is unlikely to generate heat.
Drawings
Fig. 1 is a schematic structural diagram of the circuit breaker of the present invention in a test position;
fig. 2 is a schematic structural view of the circuit breaker of the present invention in an operating position;
wherein: 1-a cable chamber; 2-lower contact box; 3-a current transformer; 4-a first lower branch bus; 5-mounting the beam on the lower contact box; 6-a first upper support busbar; 7, an insulator; 8-a first busbar bushing; 9-a first busbar bushing mounting plate; 10-a first exhaust fan; 11-bus bar chamber; 12-a second busbar bushing; 13-a second busbar bushing mounting plate; 14-a second upper support busbar; 15-a second exhaust fan; 16-upper contact box; 17-a breaker chamber; 18-a third exhaust fan; 19-a shutter mechanism; 20-a circuit breaker; 21-a static contact; 22-fixed contact fixing bolt; 23-breaker advance screw.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution 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 obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
eighteen major measures against accidents of the power grid of the national grid company limited (revised version) are issued by the national grid company 11 months in 2018, and the requirement that the insulating partition plate is forbidden to be used by the newly-installed switch cabinet is met, even if the insulating sheath and the heat-shrinkable material are additionally arranged on the bus, the requirement on the air clear distance is met. The air clear distance of the switch cabinet is 40.5KV, and the phase-to-ground distance and the relative ground distance are not less than 300mm ".
Example 1
Referring to fig. 1 and 2, a high-current high-voltage switch device includes a cabinet body, in which a cable chamber 1, a bus chamber 11 and a breaker chamber 17 are partitioned by a partition board; the cabinet body has the following overall dimensions: the width is 1680mm, the height is 2600mm, and the depth is 3150 mm. A lower contact box 2, a current transformer 3, a first lower branch bus 4 and a first upper branch bus 6 are arranged in the cable chamber 1; a first exhaust fan 10 is arranged at the top end of the outer part of the cable chamber 1; a second upper supporting bus 14 and an upper contact box 16 are arranged in the bus chamber 11; a second exhaust fan 15 is arranged at the top end of the outside of the bus chamber 11; a breaker 21 and a valve mechanism 19 are arranged in the breaker chamber 17, the phase spacing of the breakers is 440mm, the pole spacing is 400mm, and the pushing distance is 560 mm; a third exhaust blower 18 is installed at the outer top end of the breaker chamber 17. The parameters of the circuit breaker 21 are: the rated continuous current is 3150A, and the breaking current is 31.5kA or 25 kA.
Example 2
The contents are the same as those of example 1 except for the following.
The circuit breaker 21 is a fixed-sealed pole type circuit breaker; the distance between the phases of the current transformer 3 is 420 mm. The distance between the first lower supporting bus bar 4 and the first upper supporting bus bar 6 and the distance between the second upper supporting bus bar 14 are all 420 mm. The diameter of the contact in the lower contact box 2 and the upper contact box 16 is 109 mm.
Example 3
The contents are the same as those of example 1 except for the following.
The number of the first exhaust fans 10, the number of the second exhaust fans 15 and the number of the third exhaust fans 18 are three respectively; the first blower 10, the second blower 15 and the third blower 18 are all 87W blowers.
Example 4
The contents are the same as those of example 1 except for the following.
An insulator 7, a first bus sleeve 8, a first bus sleeve mounting plate 9 and a lower contact box mounting beam 5 are further mounted in the cable chamber 1; and a second bus sleeve 12, a second bus sleeve mounting plate 13 and an upper contact box mounting beam are also mounted in the bus chamber 11.
The inside of the breaker chamber 17 is also provided with a static contact 21, a static contact fixing bolt 22 and a breaker propelling screw 23.
The first busbar bushing mounting plate 9 and the second busbar bushing mounting plate 13 are both made of stainless steel plates; the cabinet body is an aluminum-zinc coated steel plate with a bending assembly structure. The first lower supporting busbar 4, the first upper supporting busbar 6 and the second upper supporting busbar 14 are all TMY100X12 fillet busbars; a shutter is additionally arranged on a front door plate and a rear door plate of a switch cabinet body respectively; the shutter mechanism 19 is a folding shutter mechanism. The cabinet body is internally provided with the five-prevention locking device which has complete and complete functions and can reliably realize the locking of the switch cabinet.
In conclusion, the insulation board in the switch cabinet is removed, the air clear distance in the cabinet is not less than 300mm, and the parts 1 of ' meeting eighteen major measures of electric network (revised version) (2018.979) documents of national electric network Limited company and ' purchasing standard of 12Kv-40.5kV high-voltage switch cabinet ': general technical Specification "Q/GDW 13088.1-2018). Simultaneously the utility model discloses a design can guarantee again that the height above sea level uses in 2000 meters and following service environment.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (10)
1. A high-current high-voltage switch device is characterized by comprising a cabinet body, wherein a cable chamber (1), a bus chamber (11) and a breaker chamber (17) are separated from the cabinet body by a partition plate; the cabinet body has the following overall dimensions: the width is 1680mm, the height is 2600mm, and the depth is 3150 mm;
a lower contact box (2), a current transformer (3), a first lower branch bus (4) and a first upper branch bus (6) are arranged in the cable chamber (1); a first exhaust fan (10) is installed at the top end of the outer part of the cable chamber (1);
a second upper supporting bus (14) and an upper contact box (16) are arranged in the bus chamber (11); a second exhaust fan (15) is installed at the top end of the outer part of the bus chamber (11);
install circuit breaker (21) and valve mechanism (19) in circuit breaker room (17), the looks interval of circuit breaker is 440mm, the utmost point interval is 400mm, pushes away the journey and is 560mm, and the parameter of circuit breaker (21) is: the rated continuous current is 3150A, and the cut-off current is 31.5kA or 25 kA; and a third exhaust fan (18) is arranged at the top end of the outer part of the breaker chamber (17).
2. A high current high voltage switchgear according to claim 1, characterized in that the phase distance of the current transformers (3) is 420 mm;
the interphase distances among the first lower supporting bus (4), the first upper supporting bus (6) and the second upper supporting bus (14) are all 420 mm.
3. A high-current high-voltage switch equipment according to claim 1, wherein an insulator (7), a first bus bar sleeve (8), a first bus bar sleeve mounting plate (9) and a lower contact box mounting beam (5) are further mounted in the cable chamber (1);
and a second bus sleeve (12), a second bus sleeve mounting plate (13) and an upper contact box mounting beam are further mounted in the bus chamber (11).
4. A high current high voltage switchgear according to claim 3, characterized in that the first busbar bushing mounting plate (9) and the second busbar bushing mounting plate (13) are both stainless steel plates.
5. A high current high voltage switching device according to claim 1, wherein the circuit breaker (21) is a clamped pole circuit breaker.
6. A high current high voltage switch apparatus according to claim 1, wherein the cabinet is an aluminum-zinc-coated steel plate with a bent assembly structure.
7. A high current high voltage switchgear according to claim 1, characterized in that the first lower busbar (4), the first upper busbar (6) and the second upper busbar (14) are TMY100X12 rounded busbars.
8. A high current high voltage switchgear according to claim 1, characterized in that there are three first suction fans (10), three second suction fans (15) and three third suction fans (18), respectively;
the first exhaust fan (10), the second exhaust fan (15) and the third exhaust fan (18) are 87W exhaust fans.
9. A large current high voltage switch device according to claim 1, wherein the cabinet body is provided with a front door panel and a rear door panel, and shutters are respectively installed on the front door panel and the rear door panel;
the valve mechanism (19) is a folding valve mechanism.
10. A high current high voltage switchgear according to claim 1, characterized in that the diameter of the contacts in the lower contact box (2) and the upper contact box (16) are 109mm each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121438535.9U CN214957999U (en) | 2021-06-25 | 2021-06-25 | Heavy current high-voltage switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121438535.9U CN214957999U (en) | 2021-06-25 | 2021-06-25 | Heavy current high-voltage switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214957999U true CN214957999U (en) | 2021-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121438535.9U Active CN214957999U (en) | 2021-06-25 | 2021-06-25 | Heavy current high-voltage switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214957999U (en) |
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2021
- 2021-06-25 CN CN202121438535.9U patent/CN214957999U/en active Active
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