阅读说明：本技术 高压柜及高压柜组合结构 (High-voltage board and high-voltage board combined structure ) 是由 孙伟 贺未 王富忠 陆荣德 蔡宗光 于 2019-09-26 设计创作，主要内容包括：本发明涉及一种高压柜及高压柜组合结构,包括柜体,柜体的顶面开设有沿柜体的宽度方向错开设置的第一过线孔、第二过线孔和第三过线孔；及A相跨接母排、B相跨接母排和C相跨接母排,A相跨接母排设置于柜体内部且其引出端从第一过线孔内穿出,B相跨接母排设置于柜体内部且其引出端从第二过线孔内穿出,C相跨接母排设置于柜体内部且其引出端从第三过线孔内穿出；其中,A相跨接母排的引出端、B相跨接母排的引出端与C相跨接母排的引出端中任意两者之间均间隔形成有安全间隙,所述安全间隙大于或等于125mm。三个引出端能够相互错开排布,能够适应柜体800mm的柜宽尺寸,且三个引出端之间相互形成大于125mm的安全间隙,能够防止电气放电现象发生。(The invention relates to a high-voltage cabinet and a high-voltage cabinet combined structure, which comprises a cabinet body, wherein the top surface of the cabinet body is provided with a first wire passing hole, a second wire passing hole and a third wire passing hole which are staggered along the width direction of the cabinet body; the phase A cross-over busbar is arranged in the cabinet body, the leading-out end of the phase A cross-over busbar penetrates through the first wire passing hole, the phase B cross-over busbar is arranged in the cabinet body, the leading-out end of the phase B cross-over busbar penetrates through the second wire passing hole, the phase C cross-over busbar is arranged in the cabinet body, and the leading-out end of the phase C cross-over busbar penetrates through the third wire passing hole; and safety gaps are formed at intervals between any two of the leading-out end of the A-phase cross-connection busbar, the leading-out end of the B-phase cross-connection busbar and the leading-out end of the C-phase cross-connection busbar, and the safety gaps are larger than or equal to 125 mm. The three terminals of drawing forth can stagger each other and arrange, can adapt to the cabinet width size of the cabinet body 800mm, and form the safety clearance that is greater than 125mm each other between the three terminal of drawing forth, can prevent that the electric discharge phenomenon from taking place.)

1. A high-voltage board is characterized by comprising

The top surface of the cabinet body is provided with a first wire passing hole, a second wire passing hole and a third wire passing hole which are staggered along the width direction of the cabinet body; and

The cabinet body comprises a cabinet body, a first threading hole, a second threading hole, a phase A bridging busbar, a phase B bridging busbar and a phase C bridging busbar, wherein the phase A bridging busbar is arranged in the cabinet body, a leading-out end of the phase A bridging busbar penetrates out of the first threading hole, the phase B bridging busbar is arranged in the cabinet body, a leading-out end of the phase B bridging busbar penetrates out of the second threading hole, the phase C bridging busbar is arranged in the cabinet body, and a leading-out end of the phase C bridging busbar penetrates out of the third threading hole; and safety gaps are formed at intervals between any two of the leading-out end of the A-phase cross-connection busbar, the leading-out end of the B-phase cross-connection busbar and the leading-out end of the C-phase cross-connection busbar, and the safety gaps are larger than or equal to 125 mm.

2. The high-voltage cabinet according to claim 1, wherein the leading-out end of the A-phase cross-over busbar, the leading-out end of the B-phase cross-over busbar and the leading-out end of the C-phase cross-over busbar are arranged in a triangular shape.

3. The high-voltage cabinet according to claim 1, wherein a first safety gap is formed between the leading-out end of the A-phase cross-over busbar and the leading-out end of the B-phase cross-over busbar, and the value of the first safety gap is 255 mm.

4. the high-voltage cabinet according to claim 1, wherein a second safety gap is formed between the leading-out end of the B-phase cross-over busbar and the leading-out end of the C-phase cross-over busbar, and the value of the second safety gap is 234 mm.

5. The high-voltage cabinet according to any one of claims 1 to 4, further comprising a first wall bushing inserted and fixed in the first wire passing hole, a second wall bushing inserted and fixed in the second wire passing hole, and a third wall bushing inserted and fixed in the third wire passing hole, wherein the phase A cross-over busbar passes through the first wall bushing, the phase B cross-over busbar passes through the second wall bushing, and the phase C cross-over busbar passes through the third wall bushing.

6. The high-voltage cabinet according to claim 5, wherein a bus chamber, a cable chamber and a breaker chamber are respectively arranged in the cabinet body, a first pressure relief opening, a second pressure relief opening and a third pressure relief opening are further formed in the side wall of the cabinet body, the first pressure relief opening is communicated with the cable chamber, the second pressure relief opening is communicated with the breaker chamber, and the third pressure relief opening is communicated with the bus chamber.

7. A high-voltage cabinet combined structure is characterized by comprising a transition cabinet and two high-voltage cabinets according to any one of claims 1 to 6, wherein two ends of the transition cabinet are communicated with each other, one end of the transition cabinet is arranged on the top surface of one of the high-voltage cabinets, the other end of the transition cabinet is arranged on the top surface of the other high-voltage cabinet, and the A-phase cross-over busbar, the B-phase cross-over busbar and the C-phase cross-over busbar led out from the tops of the two high-voltage cabinets are respectively arranged in the transition cabinet in a penetrating manner and are correspondingly connected in the same phase.

8. The high-voltage cabinet according to claim 7, wherein two ends of the transition cabinet are detachably connected with the top surface of the high-voltage cabinet through fasteners respectively, and a sealing gasket is pressed on a matching surface.

9. The high-voltage cabinet according to claim 7, wherein the transition cabinet comprises a first cabinet section, a second cabinet section and a telescopic adjusting assembly, and the first cabinet section is movably connected with the second cabinet section through the telescopic adjusting assembly.

10. The high-voltage cabinet according to claim 7, wherein the side walls of the transition cabinet are provided with heat dissipation parts.

Technical Field

The invention relates to the technical field of high-voltage electrical equipment, in particular to a high-voltage cabinet and a high-voltage cabinet combined structure.

Background

For a 10KV high-voltage cabinet used in the current market, the width of the cabinet is usually 800mm and is a fixed value; when wiring, the A, B, C three-phase jumper busbars typically extend from the top of the cabinet and are arranged in a row. However, according to the requirement of safety standard, it is required to ensure that the electrical gap in the 10KV high-voltage cabinet is at least 125mm, and the row width of the A, B, C three-phase cross-over busbar is 125mm, so that under the condition that the cabinet width is 800mm and cannot be changed, if A, B, C three-phase cross-over busbars are arranged in parallel in a row, it is impossible to ensure that the safe electrical gaps larger than 125mm are formed between the three-phase cross-over busbars and the cabinet wall, which makes the electrical discharge phenomenon easily occur, and the personal safety of the equipment and the staff is affected.

Disclosure of Invention

The invention aims to provide a high-voltage cabinet and a high-voltage cabinet combined structure, and aims to solve the problem that the electrical discharge is caused by unreasonable arrangement of three-phase bridging busbars, so that the equipment and personal safety are affected.

In one aspect, the present application provides a high voltage cabinet comprising

The top surface of the cabinet body is provided with a first wire passing hole, a second wire passing hole and a third wire passing hole which are staggered along the width direction of the cabinet body; and

The cabinet body comprises a cabinet body, a first threading hole, a second threading hole, a phase A bridging busbar, a phase B bridging busbar and a phase C bridging busbar, wherein the phase A bridging busbar is arranged in the cabinet body, a leading-out end of the phase A bridging busbar penetrates out of the first threading hole, the phase B bridging busbar is arranged in the cabinet body, a leading-out end of the phase B bridging busbar penetrates out of the second threading hole, the phase C bridging busbar is arranged in the cabinet body, and a leading-out end of the phase C bridging busbar penetrates out of the third threading hole; and safety gaps are formed at intervals between any two of the leading-out end of the A-phase cross-connection busbar, the leading-out end of the B-phase cross-connection busbar and the leading-out end of the C-phase cross-connection busbar, and the safety gaps are larger than or equal to 125 mm.

In one embodiment, the leading-out ends of the A-phase cross-connection busbar, the B-phase cross-connection busbar and the C-phase cross-connection busbar are arranged in a triangular mode.

In one embodiment, a first safety gap is formed between the leading-out end of the phase a cross-over busbar and the leading-out end of the phase B cross-over busbar, and the value of the first safety gap is 255 mm.

In one embodiment, a second safety gap is formed between the leading-out end of the B-phase cross-over busbar and the leading-out end of the C-phase cross-over busbar, and the value of the second safety gap is 234 mm.

In one embodiment, the high-voltage board further includes a first wall bushing inserted and fixed in the first wire passing hole, a second wall bushing inserted and fixed in the second wire passing hole, and a third wall bushing inserted and fixed in the third wire passing hole, the phase a cross-over busbar passes through the first wall bushing, the phase B cross-over busbar passes through the second wall bushing, and the phase C cross-over busbar passes through the third wall bushing.

In one embodiment, the cabinet body is internally provided with a bus chamber, a cable chamber and a breaker chamber, the side wall of the cabinet body is further provided with a first pressure relief opening, a second pressure relief opening and a third pressure relief opening, the first pressure relief opening is communicated with the cable chamber, the second pressure relief opening is communicated with the breaker chamber, and the third pressure relief opening is communicated with the bus chamber.

On the other hand, this application still provides a high-voltage board integrated configuration, its transition cabinet that includes that both ends link up and two as above the high-voltage board, the one end of transition cabinet sets up in one of them the top surface of high-voltage board, the other end sets up in another the top surface of high-voltage board, two the top of high-voltage board is drawn forth A looks cross-over connection female arranging B looks cross-over connection female arranging and C looks cross-over connection female arranging wears to locate respectively in the transition cabinet and in phase correspondence connection.

In one embodiment, two ends of the transition cabinet are detachably connected with the top surface of the high-voltage cabinet through fasteners respectively, and a sealing gasket is pressed on a matching surface.

In one embodiment, the transition cabinet comprises a first cabinet section, a second cabinet section and a telescopic adjusting assembly, wherein the first cabinet section is movably connected with the second cabinet section through the telescopic adjusting assembly.

In one embodiment, the side walls of the transition cabinet are provided with heat dissipation parts.

the embodiment of the invention has the following beneficial effects:

In the high-voltage cabinet of the proposal, because the top of the cabinet body is provided with the first wire passing hole, the second wire passing hole and the third wire passing hole which are arranged in a staggered way along the width direction, so that the A, B, C three-phase cross-over bus bar arranged in the cabinet body can be respectively led out from the first wire passing hole, the second wire passing hole and the third wire passing hole, and specifically, the leading-out end of the A-phase cross-over bus bar can be led out from the first wire passing hole, the B-phase cross-over bus bar can be led out from the second wire passing hole, and the C-phase cross-over bus bar can be led out from the third wire passing hole, and the three leading-out ends can be arranged in a staggered way, so that the reasonable optimized layout of the three-phase bridging busbar can be realized, thereby adapt to the cabinet width size of the cabinet body 800mm, and form the safety clearance that is greater than 125mm between the three leading-out terminal this moment each other, can prevent that the electric discharge phenomenon from taking place, avoid causing the injury to equipment and staff's person.

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.

Wherein: 10. the cabinet body, 11, first wire hole, 12, the second wire hole is crossed, 13, the third wire hole is crossed, 14, the generating line room, 15, the cable chamber, 16, the circuit breaker room, 17, first pressure release mouth, 18, the second pressure release mouth, 20, female arranging is crossed over mutually to A looks, 30, female arranging is crossed over mutually to B looks, 40, female arranging is crossed over mutually to C, 50, first wall bushing, 60, the second wall bushing, 70, the third wall bushing, 100, the high-voltage board, 200, high-voltage board integrated configuration, 300, the transition cabinet, 310, first cabinet section, 320, the second cabinet section, 330, flexible adjusting part, 340, the radiating part.

Fig. 1 is a schematic structural diagram of a high voltage cabinet according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

Fig. 3 is a schematic structural diagram of a high-voltage board assembly structure according to an embodiment of the invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, a high voltage cabinet 100 according to an embodiment of the present invention includes a cabinet body 10, a phase a cross-over busbar 20, a phase B cross-over busbar 30, and a phase C cross-over busbar 40. The cabinet body 10 is a cubic structure and is formed by bending, welding and other processes of stainless steel plates. The leading flank below of the cabinet body 10 is equipped with the access door, installs the electromagnetic lock on the access door, so can guarantee that the access door can not be opened by the inspection personnel when the cabinet body 10 is electrified, only need overhaul and when having a power failure, the access door just can be opened by the inspection personnel and get into and operate in the cabinet to reach the mesh of guaranteeing personal safety.

The a-phase cross-over busbar 20, the B-phase cross-over busbar 30 and the C-phase cross-over busbar 40 are fixed on the inner side wall of the cabinet 10 through insulators, and in order to prevent electrical power generation, safety spaces are formed between the safety spaces and the inner side wall of the cabinet 10. In one embodiment, the safety distance is 420mm, which is larger than 125mm required by safety regulations, thereby providing higher safety and reliability.

the top surface of the cabinet body 10 is provided with a first wire passing hole 11, a second wire passing hole 12 and a third wire passing hole 13 which are staggered along the width direction of the cabinet body 10; the phase a cross-over busbar 20 is arranged inside the cabinet 10, and a leading-out end of the phase a cross-over busbar passes through the first wire passing hole 11, the phase B cross-over busbar 30 is arranged inside the cabinet 10, and a leading-out end of the phase B cross-over busbar passes through the second wire passing hole 12, and the phase C cross-over busbar 40 is arranged inside the cabinet 10, and a leading-out end of the phase C cross-over busbar passes through the third wire passing hole 13; and safety gaps are formed at intervals between any two of the leading-out end of the A-phase cross-connection busbar 20, the leading-out end of the B-phase cross-connection busbar 30 and the leading-out end of the C-phase cross-connection busbar 40, and the safety gaps are larger than or equal to 125 mm.

The embodiment of the invention has the following beneficial effects: in the high voltage cabinet 100 of the present scheme, since the top of the cabinet body 10 is provided with the first wire passing hole 11, the second wire passing hole 12 and the third wire passing hole 13 which are arranged in a staggered manner along the width direction thereof, A, B, C three-phase cross-over busbar arranged inside the cabinet body 10 can be respectively led out from the first wire passing hole 11, the second wire passing hole 12 and the third wire passing hole 13, specifically, a leading-out end of the a-phase cross-over busbar 20 can be formed to penetrate out from the first wire passing hole 11, a B-phase cross-over busbar 30 can penetrate out from the second wire passing hole 12, a C-phase cross-over busbar 40 can penetrate out from the third wire passing hole 13, and the three leading-out ends can be arranged in a staggered manner, so that the reasonable optimized layout of the three-phase cross-over busbar can be realized, thereby adapting to the 800mm cabinet width size of the cabinet body 10, and at this time, a safety gap larger than 125mm, avoid causing injury to equipment and staff's personal.

In order to fully utilize the cabinet width size of the cabinet body 10 and form safety gaps between the cross-over busbar and the cabinet wall, the leading-out end of the phase a cross-over busbar 20, the leading-out end of the phase B cross-over busbar 30 and the leading-out end of the phase C cross-over busbar 40 are arranged in a triangular shape. Preferably, three end of drawing forth is the article style of calligraphy and arranges, so can synthesize and the size of two directions of rational utilization cabinet width and cabinet length, can avoid again that the female row of three-phase cross-over connection too disperses and takes too much arrangement space.

Of course, in other embodiments, the three leading ends may also be arranged in an obtuse triangle, where the leading end of the a-phase cross-connected busbar 20 and the leading end of the B-phase busbar are arranged vertically in parallel, and the C-phase cross-connected busbar 40 is arranged below the left side of the B-phase cross-connected busbar 30. At this time, the a-phase jumper bus bar 20 and the B-phase jumper bus bar 30 can fully utilize the cabinet width dimension, and the C-phase jumper bus bar 40 and the B-phase jumper bus bar 30 can fully utilize the cabinet length dimension and simultaneously take account of the cabinet width dimension, thereby forming an optimal arrangement scheme taking account of both the size arrangement and the electrical safety.

Referring to fig. 2, optionally, in an embodiment, a first safety gap is formed between the leading-out end of the phase a cross-connected busbar 20 and the leading-out end of the phase B cross-connected busbar 30, and a value of the first safety gap is 255 mm. A second safety gap is formed between the leading-out end of the B-phase cross-over busbar 30 and the leading-out end of the C-phase cross-over busbar 40, and the value of the second safety gap is 234 mm. So can prevent effectively that the female electrical discharge phenomenon of drawing forth between the end of arranging of three-phase cross-over connection from taking place, guarantee equipment and staff personal safety. At this time, the leading-out ends of the A, B, C three-phase cross-connection busbar are arranged in an obtuse triangle, and a connecting line between the leading-out end of the a-phase cross-connection busbar 20 and the leading-out end of the C-phase cross-connection busbar 40 is a long edge of the obtuse triangle, so that a third safety gap formed between the leading-out end of the a-phase cross-connection busbar and the leading-out end of the C-phase cross-connection busbar is far larger than 125mm, and specifically, the value.

Meanwhile, the gap between the leading-out end of the A-phase cross-connection busbar 20 and the cabinet wall is 180 mm; the gap between the leading-out end of the B-phase cross-connection busbar 30 and the cabinet wall is 174 mm; the gap between the leading-out end of the C-phase cross-connection busbar 40 and the cabinet wall is 190 mm. The three clearance values are all larger than the specification of the safety standard of 125mm, so that the safety specification requirements are met, and safety and reliability are ensured.

The cabinet body 10 is also provided with A, B, C three-phase branch buses (vertically arranged) and A, B, C three-phase horizontal buses, and when the three-phase branch buses are connected with the contact box, the requirement that enough electrical gaps larger than 125mm are kept between the three-phase branch buses and the cabinet body 10 and between the three-phase branch buses and different phase bridging buses is also met.

Further, in an embodiment, the high voltage cabinet 100 further includes a first wall bushing 50 fixedly inserted into the first wire passing hole 11, a second wall bushing 60 fixedly inserted into the second wire passing hole 12, and a third wall bushing 70 fixedly inserted into the third wire passing hole 13, where the phase a cross-over busbar 20 passes through the first wall bushing 50, the phase B cross-over busbar 30 passes through the second wall bushing 60, and the phase C cross-over busbar 40 passes through the third wall bushing 70. Therefore, through installing each wall bushing, the insulation performance of the perforated line passing part of the cabinet body 10 can be effectively enhanced, and the safety of equipment is improved.

With reference to fig. 1, in addition, a bus chamber 14, a cable chamber 15 and a circuit breaker chamber 16 are respectively disposed inside the cabinet 10, a first pressure relief port 17, a second pressure relief port 18 and a third pressure relief port are further formed in a side wall of the cabinet 10, the first pressure relief port 17 is communicated with the cable chamber 15, and the second pressure relief port 18 is communicated with the circuit breaker chamber 16; the third relief port communicates with the bus bar compartment 14. Therefore, by arranging the pressure relief ports, the gas pressure and the arcing inside the cabinet body 10 can be guaranteed to be released to the outside of the cabinet body 10 when arcing faults occur, and the safety in the cabinet is guaranteed.

As shown in fig. 3, in addition to the above, the present application also provides a high voltage cabinet combination structure 200, which includes a transition cabinet 300 with two ends penetrating through and two high voltage cabinets 100 as described in any of the above embodiments. The two high-voltage cabinets 100 are arranged oppositely at a certain distance, one end of the transition cabinet 300 is arranged on the top surface of one of the high-voltage cabinets 100, the other end of the transition cabinet 300 is arranged on the top surface of the other high-voltage cabinet 100, and the a-phase cross-over busbar 20, the B-phase cross-over busbar 30 and the C-phase cross-over busbar 40 led out from the tops of the two high-voltage cabinets 100 are respectively arranged in the transition cabinet 300 in a penetrating manner and are correspondingly connected in phase. Thus, the two high-voltage cabinets 100 can be combined for use, and the requirements of specific power utilization occasions are met.

The transition cabinet 300 is of a U-shaped bridge structure and is made of stainless steel plates through bending and tailor welding processes, so that the transition cabinet has a long service life. When the high-voltage switch cabinet is installed, two ends of the transition cabinet 300 are detachably connected with the top surface of the high-voltage switch cabinet 100 through fasteners, so that the high-voltage switch cabinet is convenient to assemble and disassemble and has high connection strength. The fitting surface intervally of the both ends of transition cabinet 300 and the top surface of high-voltage board 100 is equipped with sealed the pad, and sealed pad can improve the sealing capacity of assembled cabinet structure, possesses stronger waterproof, dustproof performance.

Alternatively, the gasket may be, but is not limited to, rubber, foam, or the like.

Referring to fig. 3, in practical applications, the two high voltage cabinets 100 may need to be arranged at different intervals for different working places, which are limited by terrain conditions and equipment use conditions. Thus, in a further embodiment, the transition cabinet 300 includes a first cabinet section 310, a second cabinet section 320, and a telescoping adjustment assembly 330, the first cabinet section 310 being movably coupled to the second cabinet section 320 via the telescoping adjustment assembly 330. Thus, by adjusting the telescopic adjusting assembly 330, the first cabinet section 310 can move relative to the second cabinet section 320, and transition cabinets 300 with different lengths are obtained, so that the purpose of reliably connecting two high-voltage cabinets 100 when being placed at different intervals is met. Specifically, the telescopic adjusting assembly 330 includes a bolt assembly, a slotted hole is formed in the end wall of the first cabinet section 310 opposite to the second cabinet section 320, when the first cabinet section 310 and the second cabinet section 320 are relatively close to or far away from each other, the bolt assembly slides in the slotted hole, and after the length is adjusted, the bolt is locked. Convenient, fast and labor-saving operation.

In addition, the side wall of the transition cabinet 300 is provided with a heat dissipation part 340. The heat dissipation part 340 is of a louver structure arranged in an array, so that heat generated during working can be timely discharged, and the safety of equipment is guaranteed. Particularly, the transition cabinet 300 is welded with a gauze on the inner wall of the louver structure, so that foreign matters such as external insects and impurities can be prevented from entering the cabinet to affect the operation safety of the equipment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.