阅读说明：本技术 一种新型挂接式开关柜结构 (Novel hanging type switch cabinet structure ) 是由 丁年礼 毛雄飞 严鹏波 夏小红 于 2021-09-01 设计创作，主要内容包括：本发明适用于开关柜技术领域,提供了一种新型挂接式开关柜结构,包括变压器室以及位于所述变压器室左右两侧的高压配电室和低压配电室,所述低压配电室分为三个区域分别为位于中间的主母线布置区以及位于所述主母线布置区前后两侧的进线与电容器安装区、出线安装区,其中所述主母线布置区可以同时通过一次电缆束与左右隔板上的空开连接并且将主母线的高度设置较低,同时在所述出线安装区安装多块防护板；箱变低压系统如果采用元器件挂式结构,采用模块化设计工艺,在制作成本、质量控制与制作效率等方面有明显的竞争优势；更重要的是箱变的占地面积在同等的配置情况下,可以节约1/4左右的占地面积,为箱变的“小型化”提供了支撑。(The invention is suitable for the technical field of switch cabinets, and provides a novel hanging type switch cabinet structure which comprises a transformer chamber, a high-voltage distribution chamber and a low-voltage distribution chamber, wherein the high-voltage distribution chamber and the low-voltage distribution chamber are positioned on the left side and the right side of the transformer chamber, the low-voltage distribution chamber is divided into three areas, namely a main bus arrangement area positioned in the middle, an incoming line and capacitor installation area and an outgoing line installation area, the incoming line and capacitor installation area and the outgoing line installation area are positioned on the front side and the rear side of the main bus arrangement area, the main bus arrangement area can be simultaneously connected with an air switch on a left partition plate and a right partition plate through a primary cable bundle, the height of a main bus is set to be lower, and meanwhile, a plurality of protection plates are installed in the outgoing line installation area; if the box transformer low-voltage system adopts a component hanging structure and adopts a modular design process, the low-voltage system has obvious competitive advantages in the aspects of manufacturing cost, quality control, manufacturing efficiency and the like; more importantly, the floor area of the box transformer substation can be saved by about 1/4 under the condition of the same configuration, and support is provided for the miniaturization of the box transformer substation.)

1. The utility model provides a novel articulate formula cubical switchboard structure which characterized in that: including transformer room (1) and being located the high-voltage distribution room (2) and the low-voltage distribution room (3) of transformer room (1) left and right sides, low-voltage distribution room (3) divide into three region and arrange district (31) and be located for being located the main bus in the middle of respectively the main bus arranges inlet wire and capacitor installing zone (32), the installing zone (33) of being qualified for the next round of competitions of both sides around district (31), wherein main bus arranges that district (31) can be connected and highly set up the lower with main bus through the sky on the cable harness and the left and right sides baffle simultaneously, is in simultaneously the installing zone (33) of being qualified for the next round of competitions installs polylith guard plate (331).

2. A novel hanging type switch cabinet structure as claimed in claim 1, wherein: the total height of the switch cabinet transformer substation is 2500mm, and the depth of the frame is only 300 mm; wherein the low voltage distribution room is 2150mm long by 2000mm wide by 2500mm high, and wherein the height of the main bus bar is 1500 mm.

3. A novel hanging type switch cabinet structure as claimed in claim 1, wherein: two parts about inlet wire and condenser installing zone (32) divide into, and the left side from the top down is instrument room (321) and measurement room (322), isolator (323), mutual-inductor (324), copper bar (325) and condenser (326) in proper order, and the right side from the top down is inlet wire circuit breaker (327) and baffle trompil (328) in proper order, and wherein the trough bypasses inlet wire circuit breaker (327) is connected two parts about inlet wire and condenser installing zone (32).

4. A novel hanging type switch cabinet structure as claimed in claim 1, wherein: the outgoing line mounting area (33) is provided with N rows, PE rows and wiring grooves surrounding the N rows and the PE rows.

5. A novel hanging type switch cabinet structure as claimed in claim 3, wherein: the installation of the primary and secondary electric components in the low-voltage distribution room (3):

the isolating switch (323) adopts a 'wiring after board' mode and a front operation structure;

the incoming line breaker (327) is in a conventional structural configuration of a drawout type or a fixed type;

a metering box or a low-pressure box of a meter in the metering chamber (322) can be independently hung on a left partition plate and a right partition plate on the low-pressure side of the box transformer substation;

the current transformer (324) adopts an epoxy resin casting type structure, is directly arranged on a box transformer low-voltage side partition plate and is opposite to the position of the outgoing cable hole, so that the air switch, the CT and the cable hole are ensured to be in the same line;

the capacitor (326) may be a conventional single-phase or intelligent capacitor.

6. A novel hanging type switch cabinet structure as claimed in claim 1, wherein: and a plurality of rectangular protection plates (331) are arranged in parallel from top to bottom outside the wire outlet mounting area (33), and the protection plates (331) can be galvanized plates.

7. A novel hanging type switch cabinet structure as claimed in claim 1, wherein: the shell of the switch cabinet is assembled in a modularized mode, and electrical elements in the shell are installed and the shell is spliced and formed before leaving a factory.

Technical Field

The invention belongs to the technical field of switch cabinets, and particularly relates to a novel hanging type switch cabinet structure.

Background

The complete equipment of the box-type transformer substation mainly comprises four parts, namely a box body, a high-voltage cabinet, a power transformer and a low-voltage switch cabinet, and most of the structures of the high-voltage switch cabinet and the low-voltage switch cabinet adopt a cabinet type structure to arrange all power supply units so as to meet the requirements of power supply and distribution safety and reliability.

The greatest advantage of the box-type substation is good preassembly or complete set, a factory completes integration in the factory before delivery according to one-time scheme design requirements of users, and after the box is changed to a project place, only cable connection and joint debugging before power transmission are completed. However, with the continuous improvement of the urban power grid, the floor area of the power equipment is an important index, and "miniaturization, low cost and high reliability" become an important index of future power equipment, so for the box-type substation structure, whether the "miniaturization" index is realized is also an important aspect for verifying whether the box-type substation structure can meet the market demand.

The miniaturization of the box body is realized, besides the miniaturization of the product appearance and the structural optimization arrangement of three major components of the box transformer substation (delta-shaped and mu-shaped), the low-voltage power distribution part is designed into a direct hanging type power supply unit structure (such as incoming line, outgoing line, compensation, communication and the like), and the overall dimension of the box transformer substation can be further reduced.

Disclosure of Invention

The invention provides a novel hanging type switch cabinet structure, and aims to solve the problems in the background technology.

The invention is realized in such a way that a novel hanging type switch cabinet structure comprises a transformer chamber, a high-voltage distribution chamber and a low-voltage distribution chamber, wherein the high-voltage distribution chamber and the low-voltage distribution chamber are positioned on the left side and the right side of the transformer chamber, the low-voltage distribution chamber is divided into three areas, namely a main bus arrangement area in the middle, an incoming line and capacitor installation area and an outgoing line installation area, the incoming line and capacitor installation area and the outgoing line installation area are positioned on the front side and the rear side of the main bus arrangement area, the main bus arrangement area can be simultaneously connected with an air switch on a left partition board and a right partition board through a primary cable harness, the height of a main bus is set to be lower, and meanwhile, a plurality of protection plates are installed in the outgoing line installation area.

Preferably, the total height of the switch cabinet is 2500mm, and the depth of the frame is only 300 mm; wherein the low voltage distribution room is 2150mm long by 2000mm wide by 2500mm high, and wherein the height of the main bus bar is 1500 mm.

Preferably, two parts about inlet wire and condenser installing zone divide into, and the left side from the top down is instrument room and measurement room, isolator, mutual-inductor, copper bar and condenser in proper order, and the right side from the top down is inlet wire circuit breaker and baffle trompil in proper order, and wherein the trough bypasses the inlet wire circuit breaker is connected two parts about inlet wire and condenser installing zone.

Preferably, the outgoing line installation area is provided with N rows and PE rows and a wiring groove surrounding the N rows and the PE rows.

Preferably, the installation of the primary and secondary electrical components in the low-voltage distribution room is as follows:

the isolating switch adopts a 'board rear wiring' mode and a front operation structure;

the incoming line breaker adopts a conventional structure configuration of a drawout type or a fixed type;

a metering box or a low-pressure box of a meter in the metering chamber can be independently hung on a left partition plate and a right partition plate on the low-pressure side of the box transformer substation;

the current transformer adopts an epoxy resin casting type structure, is directly arranged on a box transformer low-voltage side partition plate and is opposite to the position of an outgoing cable hole, so that the air switch and the CT are ensured to be in the same line with the cable hole;

the capacitor can be selected from conventional single-phase type or intelligent type.

Preferably, a plurality of rectangular protective plates are arranged in parallel from top to bottom outside the outgoing line mounting area, and the protective plates can be galvanized plates.

Preferably, the switch cabinet shell is assembled in a modularized mode, electric appliance elements in the switch cabinet shell are installed, and the switch cabinet shell is formed in a splicing mode before leaving a factory.

Compared with the prior art, the invention has the beneficial effects that: the invention relates to a novel hanging type switch cabinet structure which comprises the following components:

firstly, if the box transformer low-voltage system adopts a component hanging structure and adopts a modular design process, the box transformer low-voltage system has obvious competitive advantages in the aspects of manufacturing cost, quality control, manufacturing efficiency and the like;

and more importantly, the floor area of the box transformer substation can be saved by about 1/4 under the condition of the same configuration, so that support is provided for the miniaturization of the box transformer substation, and the construction and transformation projects of urban power distribution are facilitated.

Drawings

FIG. 1 is a schematic view of the internal arrangement of the present invention;

FIG. 2 is a schematic structural view of the lead-in line A and the capacitor mounting area in FIG. 1;

FIG. 3 is a schematic structural diagram of a B-direction outgoing line mounting area in FIG. 1;

in the figure: 1. a transformer chamber; 2. a high voltage distribution room; 3. a low voltage distribution room; 31. a main bus arrangement zone; 311. a main bus; 32. an incoming line and capacitor mounting area; 321. an instrument room; 322. a metering chamber; 323. an isolating switch; 324. a transformer; 325. copper bars; 326. a capacitor; 327. an incoming line breaker; 328. the partition plate is provided with holes; 33. an outgoing line mounting area; 331. a protection plate; 332. a wiring groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a novel articulate formula cubical switchboard structure, including transformer room 1 and be located the high voltage electricity distribution room 2 and the low voltage electricity distribution room 3 of the 1 left and right sides of transformer room, low voltage electricity distribution room 3 divide into three region respectively for being located the main bus in the middle of arrange district 31 and be located the main bus and arrange the inlet wire and the condenser installing zone 32 of district 31 front and back both sides, the installing zone 33 of being qualified for the next round of competitions, wherein main bus arranges that district 31 can be connected and lower with main bus 311's high setting through the sky on the baffle of a cable harness and left and right sides simultaneously, install polylith guard plate 331 in the installing zone 33 of being qualified for the next round of competitions simultaneously.

Main bus chamber: arrange in the middle part space of box transformer substation low pressure electricity distribution room 3, can be connected through the empty switch on cable harness and the left and right sides baffle simultaneously to reduce the intermediate bus bar bridge structure that the biserial of former cabinet type structure was arranged, the structure is simpler, and main bus 311's height is only 1500, draws down the busbar to isolator 323's copper bar 325 consumption and reduces.

Only need make installation guard plate 331 (can adopt galvanized sheet, environmental protection), need not the processing of cabinet body structural component, cabinet body course of working can omit completely, low carbon environmental protection, safety guard plate 331 is on-the-spot to be prepared, artifical and equipment processing cost also can greatly reduced.

The total height of the switch cabinet transformer substation is 2500mm, and the depth of the frame is only 300 mm; wherein the low voltage distribution room 3 is 2150mm long by 2000mm wide by 2500mm high, and wherein the main bus bar 311 is 1500mm high.

Original cubical switchboard is compared with the formula cubical switchboard that articulates of this application:

please refer to fig. 2: the incoming line and capacitor installation area 32 is divided into a left part and a right part, wherein the left part is provided with an instrument room 321, a metering room 322, an isolating switch 323, a mutual inductor 324, a copper bar 325 and a capacitor 326 from top to bottom, the right part is provided with an incoming line breaker 327 and a partition plate opening 328 from top to bottom, and the wiring groove 332 bypasses the incoming line breaker 327 to connect the left part and the right part of the incoming line and capacitor installation area 32.

Installation of the components of the primary and secondary electric appliances in the low-voltage distribution room 3:

the isolating switch 323 adopts a 'wiring after board' mode and a front-front operation structure;

the incoming line breaker 327 is configured in a conventional structure such as a drawout type or a fixed type;

a metering box or a low-pressure box of a meter in the metering chamber 322 can be independently hung on a left partition plate and a right partition plate on the low-pressure side of the box transformer substation;

the current transformer 324 is of an epoxy resin casting type structure, is directly arranged on a box transformer low-voltage side partition plate and is opposite to the position of the outgoing cable hole, so that the air switch, the CT and the cable hole are ensured to be in the same line;

the capacitor 326 may be a single-phase capacitor or a smart capacitor.

The further explanation is that: the hanging structure can be designed according to a modular structure, such as an incoming line module, an outgoing line module and a reactive compensation module. The circuit breaker, the mutual inductor 324, the isolating switch 323, the main bus 311, the metering box, the meter box and the insulating cover plate for installing each outgoing line can be designed according to respective positions, realize modular design and standardized installation, greatly improve production efficiency, reduce production cost and create value for users.

The outlet mounting area 33 is provided with N rows and PE rows and a routing channel 332 surrounding both.

A plurality of rectangular protection plates 331 are installed in parallel from top to bottom outside the outgoing line installation area 33, and the protection plates 331 may be galvanized plates.

It should be noted that, what is described with reference to fig. 3 is a spatial position relationship of primary main components of each outgoing line loop (including the position of the secondary wiring duct 332), in order to ensure the personal safety of an operator, each exposed live body needs to be additionally provided with a protection plate 331 structure for increasing the safety factor (rivet nuts are already installed on the shelves at the installation positions of the frame, and are specially used for installing an insulation plate structure), and the upper part of each loop is provided with a meter box (used for installing current and voltage meter meters, loop switch switches, closing state display and the like of each loop) corresponding to the loop.

When the secondary low-voltage apparatus components and parts adopt direct "hanging type" structure to arrange on the mounting panel, to the electrified body that exposes, there is the potential safety hazard. In order to ensure the personal safety during operation or maintenance, safety protection measures must be adopted: a grounded metal partition plate or an insulating plate is adopted to separate the protective plates 331 for safety (such as the protective plate 331 in the drawing area in fig. 3), 5 protective plates 331 are required to be installed from top to bottom, and the protection grade of the sealing plate can reach IP4X after the installation; after the safety protection board 331 is installed, the protection level of the charged body should be the standard of the cabinet type IP3X and above.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.