CN215681474U - High-voltage switch equipment - Google Patents
High-voltage switch equipment Download PDFInfo
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- CN215681474U CN215681474U CN202121429685.3U CN202121429685U CN215681474U CN 215681474 U CN215681474 U CN 215681474U CN 202121429685 U CN202121429685 U CN 202121429685U CN 215681474 U CN215681474 U CN 215681474U
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- circuit breaker
- vacuum circuit
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Abstract
The utility model discloses high-voltage switch equipment.A meter chamber and a vacuum circuit breaker chamber are arranged on the left side in a cabinet body, a cable chamber and a main bus chamber are arranged on the right side in the cabinet body, the meter chamber is arranged at the upper left corner of the cabinet body, and the main bus chamber is arranged above the cable chamber; the vacuum circuit breaker is arranged in a vacuum circuit breaker chamber, the bottom of the cabinet body is provided with an air inlet, and the top of the cabinet body is provided with an air outlet; make air outlet and air intake at the internal air convection channel that forms of cabinet, wherein, the convection channel crosses vacuum circuit breaker room, cable chamber and main bus-bar room, and this convection channel can form the chimney effect, when inside components and parts produced heat promptly, the hot-air can rise to in rising in-process, the external cold air of cabinet can get into the cabinet from cabinet body bottom internally, and the hot-air that rises then can pass through the air outlet and discharge, in order to satisfy the temperature rise performance requirement of each components and parts in the cabinet body.
Description
Technical Field
The utility model relates to the field of high-voltage electrical appliances, in particular to high-voltage switch equipment.
Background
The high-voltage switch equipment is an electric appliance with rated voltage of 1kV or above, is mainly used for switching on and off a conductive loop, is a general term formed by the high-voltage switch, corresponding control, measurement, protection and regulation devices, auxiliary parts, shells, supports and other parts and electrical and mechanical connection of the high-voltage switch, and is important control equipment for switching on and off the loop, cutting off and isolating faults. The device is mainly used for power stations, power transmission of small and medium-sized generators, power distribution of industrial and mining enterprises and public institutions, power receiving and power transmission of secondary substations of power systems, starting of large-sized high-voltage motors and the like, and is particularly suitable for frequent operation places.
However, the existing high-voltage switchgear cannot reach a large capacity of 12KV, so that the rated current cannot meet the transformer substation with a large demand on the load of power supply in an important power supply place, and therefore, it is urgently needed to design a transformer substation with a high-voltage switchgear rated current that can meet the large demand on the load of power supply in an important power supply place.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a high voltage switchgear, so as to solve a problem that a rated current of an existing high voltage switchgear cannot meet a transformer substation with a large demand on an important power supply place and a power supply load.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a high voltage switchgear comprising: a cabinet body and a vacuum circuit breaker;
an instrument room and a vacuum circuit breaker room are arranged on the left side in the cabinet body, and a cable room and a main bus room are arranged on the right side in the cabinet body;
the instrument room is arranged at the upper left corner of the cabinet body, and the main bus room is arranged above the cable room;
the vacuum circuit breaker is arranged in the vacuum circuit breaker chamber;
the bottom of the cabinet body is provided with an air inlet, and the top of the cabinet body is provided with an air outlet;
the air outlet and the air inlet form an air convection channel in the cabinet body, and the convection channel passes through the vacuum circuit breaker chamber, the cable chamber and the main bus chamber.
Preferably, the vacuum circuit breaker adopts a solid-sealed pole.
Preferably, the method further comprises the following steps: the multi-layer upper support bus is arranged in the main bus chamber, and the multi-layer lower support bus is arranged in the cable chamber.
Preferably, the distance between two adjacent layers of upper supporting busbars is greater than 55 nm;
and/or the distance between two adjacent lower support bus bars is greater than 55 nm.
Preferably, the method further comprises the following steps: and the zinc oxide lightning arrester is arranged in the main bus chamber.
Preferably, the method further comprises the following steps: the electric chassis vehicle is arranged at the bottom of the cabinet body.
Preferably, the method further comprises the following steps: a plurality of air exhaust devices arranged on the cabinet body;
the air exhaust device is used for increasing the flow velocity of air in the convection channel.
Preferably, the air exhaust device is a fan.
Preferably, the cabinet includes: side plates, a bottom plate and a top cover;
the side plate comprises the bottom plate and the top cover.
Preferably, the side plate and/or the top cover further comprise reinforcing ribs arranged on the side plates and/or the top cover;
the reinforcing ribs comprise a plurality of transverse ribs and/or vertical ribs.
The utility model discloses high-voltage switch equipment.A meter chamber and a vacuum circuit breaker chamber are arranged on the left side in a cabinet body, a cable chamber and a main bus chamber are arranged on the right side in the cabinet body, the meter chamber is arranged at the upper left corner of the cabinet body, and the main bus chamber is arranged above the cable chamber; a vacuum circuit breaker is arranged in the vacuum circuit breaker chamber, an air inlet is formed in the bottom of the cabinet body, and an air outlet is formed in the top of the cabinet body; make the air outlet with the air intake is in the internal air convection channel that forms of cabinet, wherein, the convection channel is crossed the vacuum circuit breaker room the cable chamber with main bus-bar room, this convection channel can form the chimney effect, when inside components and parts produced heat promptly, the hot-air can rise to in-process is rising, the external cold air of cabinet can be followed cabinet body bottom and get into the cabinet internally, and the hot-air that rises then can be discharged through the air outlet to satisfy the temperature rise performance requirement of each components and parts in the cabinet body.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high voltage switchgear according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of the cabinet according to the embodiment of the present invention;
fig. 3 is a right side view of a high voltage switchgear provided in an embodiment of the present invention;
fig. 4 is a front view of a high voltage switchgear provided in an embodiment of the present invention;
fig. 5 is a left side view of a high voltage switchgear provided in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a side plate according to an embodiment of the present invention.
Wherein, A is an instrument room, B is a vacuum circuit breaker room, C is a cable room, and D is a main bus room;
1 is the cabinet body, 101 is the curb plate, 1011 is perpendicular muscle, 1012 is horizontal muscle, 102 is the bottom plate, 103 is the top cap, 2 is the bus-bar bushing, 3 is last generating line, 4 is the insulator and supports, 5 is last contact box, 6 is vacuum circuit breaker, 7 is lower contact box, 8 is lower generating line, 9 is current transformer, 10 is the zinc oxide arrester, 11 is built on stilts female arranging, 12 is the sensor support, 13 is the insulator and supports, 14 is built on stilts bus-bar bushing, 15 is electronic chassis car, 16 is exhaust equipment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a high voltage switchgear, referring to fig. 1 to 3, the system includes: a cabinet body 1 and a vacuum circuit breaker 6;
an instrument room A and a vacuum circuit breaker room B are arranged on the left side in the cabinet body 1, and a cable room C and a main bus room D are arranged on the right side;
the instrument room A is arranged at the upper left corner of the cabinet body 1, and the main bus room D is arranged on the cable room C;
the vacuum circuit breaker 6 is installed in the vacuum circuit breaker chamber B;
the bottom of the cabinet body 1 is provided with an air inlet, and the top of the cabinet body 1 is provided with an air outlet;
the air outlet and the air inlet form an air convection channel in the cabinet body 1, and the convection channel passes through the vacuum circuit breaker chamber B, the cable chamber C and the main bus chamber D.
It should be noted that the high-voltage switchgear of the present application needs to achieve a large capacity of 12KV, the current reaches 5000A to 50KA, and can be used as receiving and distributing electric energy in a 3.6KV to 12KV three-phase ac 50Hz single bus and single bus segment system, therefore, the high-voltage switchgear can generate a large amount of heat in the working process, and the instrument room a and the vacuum circuit breaker room B are arranged on the left side, the cable room C and the main bus room D are arranged on the right side inside the cabinet body 1, the instrument room a is arranged at the upper left corner of the cabinet body 1, and the main bus room D is arranged above the cable room C; a vacuum circuit breaker 6 is arranged in the vacuum circuit breaker chamber B, an air inlet is formed in the bottom of the cabinet body 1, and an air outlet is formed in the top of the cabinet body 1; make the air outlet with the air intake is in form the air convection channel in the cabinet body 1, wherein, the convection channel is crossed vacuum circuit breaker room B cable chamber C with main bus-bar room D, this convection channel can form the chimney effect, when inside components and parts produced heat promptly, the hot-air can rise to in-process, the cold air of the external 1 of cabinet body can be followed cabinet body 1 bottom and got into in the cabinet body, and the hot-air that rises then can be discharged through the air outlet, in order to satisfy the temperature rise performance requirement of each components and parts in the cabinet body 1.
Further, the vacuum circuit breaker 6 adopts a solid-sealed pole.
It should be noted that, the vacuum circuit breaker 6 is provided with the solid-sealed pole, so that the tolerance of the vacuum circuit breaker 6 in a high-temperature environment can be improved, the vacuum circuit breaker 6 can be effectively ensured to normally work in the high-temperature environment, and the service life of the vacuum circuit breaker 6 can be prolonged.
Further, the high voltage switchgear further comprises: the multi-layer upper supporting bus 3 is arranged in the main bus chamber D, and the multi-layer lower supporting bus 8 is arranged in the cable chamber C.
It should be noted that, by setting the upper supporting bus bar 3 and the lower supporting bus bar into multiple layers, the upper supporting bus bar 3 is set in the main bus bar chamber D, the lower supporting bus bar 8 is set in the cable chamber C, and by setting the upper supporting bus bar 3 and the lower supporting bus bar 8 in a layered manner and in different areas, the upper supporting bus bar 3 and the lower supporting bus bar 8 can be conveniently overhauled by a worker, and the heat dissipation can be conveniently guided, so that a fire hazard is avoided.
Specifically, the distance between two adjacent layers of upper supporting busbars is greater than 55 nm;
and/or the distance between two adjacent lower support bus bars is greater than 55 nm.
It should be noted that, the distance between the two adjacent layers of the upper supporting buses is greater than 55nm, and/or the distance between the two adjacent layers of the lower supporting buses is greater than 55nm, so that the partial discharge value of the cabinet body is less than or equal to 50PC at 13.2kV test voltage, and the requirement of high-quality products is met.
Further, the high voltage switchgear further comprises: and the zinc oxide arrester 10 is arranged in the main bus chamber D.
It should be noted that the zinc oxide arrester is an arrester having good protective performance. The current flowing through the lightning arrester is extremely small (microampere or milliampere) at normal working voltage by utilizing the good nonlinear volt-ampere characteristic of the zinc oxide; when overvoltage acts, the resistance drops sharply, and the energy of the overvoltage is released, so that the protection effect is achieved. The difference between the lightning arrester and the traditional lightning arrester is that the lightning arrester has no discharge gap and plays a role in current leakage and disconnection by utilizing the nonlinear characteristic of zinc oxide, so that the components in the cabinet body 1 can be effectively protected from being damaged by lightning by arranging the zinc oxide lightning arrester 10 in the main bus chamber D.
Further, the high voltage switchgear further comprises: and the electric chassis vehicle 15 is arranged at the bottom of the cabinet body 1.
It should be noted that, by arranging the electric chassis vehicle 15 at the bottom of the cabinet body 1, the cabinet body 1 can move back and forth between the working position and the testing position, and the working personnel can conveniently overhaul the cable chamber C and the vacuum circuit breaker chamber B in the cabinet body 1.
Further, the high voltage switchgear further comprises: a plurality of air discharge devices 16 provided in the cabinet 1;
the exhaust device 16 is used to increase the flow rate of air in the convection passage.
It should be noted that, through setting up a plurality of exhaust equipment 16 at the cabinet body 1, exhaust equipment 16 can increase the air flow velocity in the convection current passageway, and then can be more effective cool down in the cabinet body 1, avoid the cabinet body 1 internal stability too high to lead to the internal components and parts of cabinet body 1 to damage.
Specifically, the exhaust device 16 is a fan.
Further, the cabinet 1 includes: side panels 101, bottom panel 102 and top cover 103;
the side plate 101 is installed to cover the bottom plate 102 and the top cover 103.
It should be noted that, the side wrapping bottom plate and the top cover are installed, so that the installed screws can be hidden, the overall attractiveness of the cabinet body 1 is increased, installation and maintenance of workers can be facilitated, and the installation and maintenance efficiency of the workers is improved.
Further, the high-voltage switch equipment further comprises reinforcing ribs arranged on the side plates 101 and/or the top cover 103;
the reinforcing ribs comprise a plurality of vertical ribs 1011 and/or transverse ribs 1012.
It should be noted that, by adding the reinforcing ribs to the side plate 101, the performance requirement during internal arcing can be effectively reduced, and the rigidity of the side plate 101 can be increased, so that the side plate 101 is prevented from deforming;
through the top cap 103 increases the strengthening rib, performance requirement when can effectively reducing inside arcing, and can also increase the rigidity of top cap 103, avoids top cap 103 to produce deformation.
To facilitate understanding of the above solution, the solution is further described below with reference to fig. 1 to 3.
A high-voltage switch device comprises a cabinet body 1, a bus sleeve 2, an upper bus 3, an insulator support 4, an upper contact box 5, a vacuum circuit breaker 6, a lower contact box 7, a lower bus 8, a current transformer 9, a zinc oxide arrester 10, an overhead bus 11, a sensor support 12, an insulator support 13 and an overhead bus sleeve 14;
the cabinet body is divided into an instrument room A, a vacuum circuit breaker room B, a cable room C and a main bus room D;
the vacuum circuit breaker 6 is arranged in a vacuum circuit breaker chamber B, the upper contact box 5 and the upper supporting bus bar 3 are arranged in a main bus bar chamber D, the lower contact box 7 and the lower supporting bus bar 8 are arranged in a cable chamber D, the overhead bus bar 11 extends out of the cabinet body 1 from an upper bridge box of the cable chamber C, and a main conductive circuit is formed by connecting the main bus bar in series through the upper supporting bus bar 3, the vacuum circuit breaker 6, the lower supporting bus bar 8, the current transformer 9, the overhead bus bar 11 and the like.
And a mechanical locking is adopted between the vacuum circuit breaker 6 and the front middle door to realize the door closing operation function.
The cabinet body 1 adopts a mode that the bottom plate and the top cover are wrapped by the side plates, no bolt is exposed on two sides of the cabinet body, the appearance is attractive, and the installation and maintenance are convenient.
The insulating part in the cabinet body 1 adopts the self-carrying air duct type, the optimized air duct design can form the chimney effect, and the natural air cooling reinforced air cooling mode is adopted, so that the requirement of 5500A temperature rise performance is completely met.
The panel structure and the top cover box frame of the cabinet body 1 specially designed adopt a labyrinth corrugated plate type structure, the strength of air flow during internal arcing is effectively reduced, and the arcing performance requirements of 1s and 50kA are met.
The cabinet body 1 is internally provided with four layers of fillet buses, and the distance between the 2 nd layer and the 3 rd layer at the main bus and the overhead bus is larger than 55 mm. The optimized conductive loop process design ensures that the partial discharge value of the whole cabinet is less than or equal to 50PC at the test voltage of 13.2kV, thereby meeting the requirement of high-quality products.
The 5000A self-contained heat dissipation channel type solid-sealed pole is firstly adopted in China in the vacuum circuit breaker, so that the temperature rise performance of the switch is stable and reliable.
The application has the following advantages:
1. the current level can reach 5000A/50 kA.
2. The vacuum circuit breaker adopts a brand-new embedded pole technology, has strong environment tolerance, adopts a flexible connection structure and is provided with a heat dissipation channel.
3. The mechanical service life of the vacuum circuit breaker can reach 1 ten thousand times, and the full capacity breaking frequency can reach 30 times.
4. Adopt novel fire-retardant insulating part, the value is put in whole cabinet office and satisfies the requirement that national grid quality product is less than 50 pc.
5. The cabinet body heat dissipation channel adopts the innovative design, and the contact box adopts the increase heat dissipation type, and the whole cabinet satisfies 1.1 times temperature rise performance requirement.
6. The configuration electronic chassis car can realize remote operation unmanned on duty.
7. The cabinet body structure adopts the latest standardized design scheme, and the structure is fully assembled, so that the maintenance is convenient, the interchangeability is good, and the overall performance is superior.
External dimensions of the high-voltage switchgear of the present application (width × depth × height mm): 1000X 2050X 2400.
The special design of the cabinet body structure of this application satisfies the requirement of armor removal type high-voltage board shell protection grade IP4X, grade IP2X between the interior compartment of cabinet.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high voltage switchgear, comprising: the device comprises a cabinet body (1) and a vacuum circuit breaker (6);
an instrument room (A) and a vacuum circuit breaker room (B) are arranged on the left side in the cabinet body (1), and a cable room (C) and a main bus room (D) are arranged on the right side;
the instrument room (A) is arranged at the upper left corner of the cabinet body (1), and the main bus room (D) is arranged above the cable room (C);
the vacuum circuit breaker (6) is mounted in the vacuum circuit breaker chamber (B);
the bottom of the cabinet body (1) is provided with an air inlet, and the top of the cabinet body (1) is provided with an air outlet;
the air outlet with the air intake is in form the air convection channel in cabinet body (1), the convection channel passes vacuum circuit breaker room (B), cable chamber (C) and main bus-bar room (D).
2. High voltage switchgear according to claim 1, characterized in that the vacuum circuit breaker (6) employs solid encapsulated poles.
3. The high voltage switching device of claim 1, further comprising: the multi-layer upper supporting bus (3) is arranged in the main bus chamber (D), and the multi-layer lower supporting bus (8) is arranged in the cable chamber (C).
4. The high voltage switchgear of claim 3 wherein adjacent two layers of said upper busbars are spaced more than 55nm apart;
and/or the distance between two adjacent lower support bus bars is greater than 55 nm.
5. The high voltage switching device of claim 1, further comprising: and the zinc oxide lightning arrester (10) is arranged in the main bus chamber (D).
6. The high voltage switching device of claim 1, further comprising: and the electric chassis vehicle (15) is arranged at the bottom of the cabinet body (1).
7. The high voltage switching device of claim 1, further comprising: a plurality of air exhaust devices (16) arranged on the cabinet body (1);
the air exhaust device (16) is used for increasing the flow speed of air in the convection channel.
8. The high-voltage switchgear according to claim 7, characterized in that the exhaust device (16) is a fan.
9. High voltage switchgear, according to claim 1, characterized in that said cabinet (1) comprises: a side plate (101), a bottom plate (102) and a top cover (103);
the side plate (101) is installed by wrapping the bottom plate (102) and the top cover (103).
10. The high voltage switchgear according to claim 9, further comprising a reinforcement provided to said side plate (101) and/or said top cover (103);
the reinforcing ribs comprise a plurality of vertical ribs (1011) and/or transverse ribs (1012).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121429685.3U CN215681474U (en) | 2021-06-25 | 2021-06-25 | High-voltage switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121429685.3U CN215681474U (en) | 2021-06-25 | 2021-06-25 | High-voltage switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215681474U true CN215681474U (en) | 2022-01-28 |
Family
ID=79977013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121429685.3U Active CN215681474U (en) | 2021-06-25 | 2021-06-25 | High-voltage switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215681474U (en) |
-
2021
- 2021-06-25 CN CN202121429685.3U patent/CN215681474U/en active Active
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