CN115000833A - Double-loop compact medium-voltage switch cabinet - Google Patents

Abstract

The invention discloses a double-loop compact medium-voltage switch cabinet, which belongs to the field of switch cabinets and comprises a cabinet body, wherein a bus chamber, an upper cabinet, a lower cabinet and a cable chamber are arranged inside the cabinet body; the bus chamber, the upper cabinet, the lower cabinet and the cable chamber are isolated by clapboards; the upper cabinet and the lower cabinet are positioned in front of the interior of the cabinet body; the upper cabinet is positioned above the lower cabinet; the bus chamber and the cable chamber are positioned at the rear of the interior of the cabinet body; the bus chamber is located in the middle of the cable chamber. The double-loop compact medium-voltage switch cabinet disclosed by the invention has a heater structure, solves the problem of limited traditional space, solves the problem of cost saving, solves the problem of equipment capacity-increasing power supply wire inlet, solves the problem of reducing operation cost, solves the problem of carbon emission, and improves the economic benefit for enterprises.

Description

Double-loop compact medium-voltage switch cabinet

Technical Field

The invention relates to a switch cabinet, in particular to a double-loop compact medium-voltage switch cabinet.

Background

Newly-built, reconstruction, extension engineering need be built the distribution substation of transformer, need the switch board to accept and the use of distribution electric energy, the shortcoming of traditional switch board is that a cabinet occupies certain space, take a return circuit of being qualified for the next round of competitions, every cabinet cost is higher and the transformation project space is limited, can't realize increasing the return circuit, for example GG1A cabinet, KYN28 cabinet also need occupy big space, in order to effectively save space, make effective space make full use of, accomplish to practice thrift the space, practice thrift the cost, because it can't realize to increase the return circuit to change extension engineering needs, the space is limited, user's demand has turned to the requirement of high reliability, high security and reduction running cost from the requirement gradually to basic function, parameter etc. simultaneously need to reduce greenhouse gas's emission, satisfy "two carbon" target requirements. Considering from the aspects of ensuring the operation continuity, the use safety and the maintenance economy of users, the reconstruction and extension project needs to change the original space from one outgoing line loop to two outgoing line loops, so that the reconstruction and extension project has wide requirements.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a double-loop compact medium-voltage switch cabinet, solve the problem of limited traditional space, solve the problem of cost saving, solve the problem of capacity-increasing power supply incoming line of equipment, solve the problem of operation cost reduction, solve the problem of carbon emission and improve the economic benefit of enterprises.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a double-loop compact medium-voltage switch cabinet which comprises a cabinet body, wherein a pressure relief device is arranged at the top of the cabinet body; a bus chamber, an upper cabinet, a lower cabinet and a cable chamber are arranged in the cabinet body; the bus chamber, the upper cabinet, the lower cabinet and the cable chamber are isolated by clapboards; the upper cabinet and the lower cabinet are positioned in front of the interior of the cabinet body; the upper cabinet is positioned above the lower cabinet; the bus chamber and the cable chamber are positioned at the rear of the interior of the cabinet body; the bus chamber is located in the middle of the cable chamber.

The invention has the further technical scheme that the upper cabinet comprises an upper handcart room and an upper instrument room; the upper instrument room is positioned above the upper handcart room.

The invention has the further technical scheme that the lower cabinet comprises a lower handcart room and a lower instrument room; the lower instrument room is positioned above the lower handcart room.

The further technical scheme of the invention is that two static contact boxes are arranged in the cable chamber; one end of the static contact box is connected with one end of the upper handcart chamber; one end of the other static contact box is connected with one end of the lower handcart room; the other ends of the two static contact boxes are connected with one end of a branch bus; the other ends of the branch buses are connected with one end of a current transformer; the other ends of the current transformers are connected with one end of the grounding switch; the other ends of the grounding switches are connected with one end of a cable; and a grounding main bus is arranged on the inner side of the bottom of the cable chamber.

The invention has the further technical scheme that two static contact boxes are arranged on one side inside the bus chamber; a plurality of main buses which are arranged in a vertical line are arranged on the other side in the bus chamber; one end of the main bus is connected with one end of each of the two static contact boxes; the other end of the static contact box is connected with the other end of the upper handcart chamber; the other end of the static contact box is connected with the other end of the lower handcart room.

The invention has the beneficial effects that:

the double-loop compact medium voltage switch cabinet provided by the invention shares one incoming bus chamber and one incoming bus bar, and two outgoing loops are respectively fed out by two handcart type circuit breakers, so that the double-loop compact medium voltage switch cabinet is novel in design, saves space, reduces occupied area and cost, gradually turns to the requirements of high reliability, high safety and reduced operation and maintenance cost from meeting the requirements of basic functions, parameters and the like, and has the characteristics that all medium voltage switch cabinets do not have. The space of a cabinet comes out the effect of two cabinets, practices thrift the space of a cabinet, and one set of system of two return circuits sharing is controlled two return circuits respectively with circuit breaker, ground connection etc. and open simultaneously and stop, can open and stop alone, solve the limited problem in traditional space, solve and practice thrift the cost problem, solve equipment increase-volume power inlet wire problem, solve and reduce the running cost problem, solve carbon emission problem, for the enterprise improves economic benefits.

Drawings

Fig. 1 is a schematic view of the internal structure of a dual-circuit compact medium voltage switchgear of the present invention.

Fig. 2 is a schematic view of the external structure of the double-circuit compact medium voltage switchgear of the present invention.

In the figure:

a bus bar room 1; a main bus bar 11; an upper cabinet 2; an upper hand car chamber 21; an upper instrument room 22; a lower cabinet 3; a lower hand truck compartment 31; a lower instrument room 32; a cable chamber 4; two stationary contact boxes 41; a branch bus 42; a current transformer 43; a ground switch 44; a cable 45; a ground main bus bar 46; a pressure relief device 5.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

The first embodiment is as follows:

the embodiment is described below with reference to fig. 1 and 2, and the invention relates to a switch cabinet, in particular to a double-loop compact medium-voltage switch cabinet, which comprises a cabinet body, wherein the top of the cabinet body is provided with a pressure relief device 5; a bus chamber 1, an upper cabinet 2, a lower cabinet 3 and a cable chamber 4 are arranged in the cabinet body; the bus chamber 1, the upper cabinet 2, the lower cabinet 3 and the cable chamber 4 are isolated by partition boards; the upper cabinet 2 and the lower cabinet 3 are positioned in front of the inner part of the cabinet body; the upper cabinet 2 is positioned above the lower cabinet 3; the bus chamber 1 and the cable chamber 4 are positioned at the rear part of the interior of the cabinet body; the busbar compartment 1 is located in the middle of the cable compartment 4. The problem of traditional space is limited is solved, the cost is practiced thrift in the solution, solves the equipment increase-volume power inlet wire problem, solves and reduces the running cost problem, solves the carbon emission problem, improves economic benefits for the enterprise.

The second embodiment is as follows:

the present embodiment will be described with reference to fig. 1 and 2, and the present embodiment further describes the first embodiment, in which the upper cabinet 2 includes an upper hand truck room 21 and an upper instrument room 22; the upper instrument room 22 is located above the upper hand truck room 21.

The third concrete implementation mode:

the present embodiment is described below with reference to fig. 1 and 2, and the present embodiment further describes the first embodiment, in which the lower cabinet 3 includes a lower hand truck room 31 and a lower instrument room 32; the lower instrument room 32 is located above the lower hand truck room 31.

The fourth concrete implementation mode is as follows:

the present embodiment is described below with reference to fig. 1 and 2, and the present embodiment further describes the first embodiment, two stationary contact boxes 41 are provided inside the cable chamber 4; one end of a static contact box 41 is connected with one end of the upper handcart room 21; one end of the other static contact box 41 is connected with one end of the lower handcart room 31; the other ends of the two static contact boxes 41 are connected with one end of a branch bus 42; the other ends of the branch buses 42 are connected with one end of a current transformer 43; the other ends of the current transformers 43 are connected with one end of a grounding switch 44; the other ends of the grounding switches 44 are connected with one end of a cable 45; the inside of the bottom of the cable chamber 4 is provided with a grounded main bus bar 46.

The fifth concrete implementation mode:

the present embodiment is described below with reference to fig. 1 and 2, and the present embodiment further describes the first embodiment, two stationary contact boxes 41 are arranged on one side inside the bus bar room 1; a plurality of main buses 11 which are arranged in a straight line up and down are arranged on the other side in the bus chamber 1; one end of the main bus 11 is connected with one end of the two stationary contact boxes 41; the other end of the static contact box 41 is connected with the other end of the upper handcart room 21; the other end of the static contact box 41 is connected with the other end of the lower handcart room 31.

The working principle is as follows: the novel medium-voltage cabinet has the advantages that one incoming line bus chamber is shared, one incoming line bus bar is shared, two paths of outgoing circuits are respectively fed out by the two handcart type circuit breakers, the novel design is novel, the space is saved, the occupied area is reduced, the cost is saved, the requirements of high reliability, high safety and reduction of operation and maintenance cost are gradually changed from meeting the basic requirements of functions, parameters and the like, and the novel medium-voltage cabinet has the characteristic that all medium-voltage cabinets do not have. The space of a cabinet comes out the effect of two cabinets, practices thrift the space of a cabinet, and one set of system of two return circuits sharing, two return circuits are controlled respectively to control and circuit breaker, ground connection etc. can open simultaneously and stop, can open alone and stop, solve traditional space limited problem, solve and practice thrift the cost problem, solve the equipment increase-volume power inlet wire problem, solve and reduce the running cost problem, solve carbon emission problem, for enterprise improvement economic benefits.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims (5)

1. A double-loop compact medium-voltage switch cabinet is characterized by comprising a cabinet body, wherein the top of the cabinet body is provided with a pressure relief device (5);

a bus chamber (1), an upper cabinet (2), a lower cabinet (3) and a cable chamber (4) are arranged in the cabinet body;

the bus chamber (1), the upper cabinet (2), the lower cabinet (3) and the cable chamber (4) are isolated by partition boards;

the upper cabinet (2) and the lower cabinet (3) are positioned in front of the interior of the cabinet body;

the upper cabinet (2) is positioned above the lower cabinet (3);

the bus chamber (1) and the cable chamber (4) are positioned at the rear part of the interior of the cabinet body;

the bus chamber (1) is positioned in the middle of the cable chamber (4).

2. The dual circuit compact medium voltage switchgear according to claim 1, characterized in that:

the upper cabinet (2) comprises an upper handcart room (21) and an upper instrument room (22);

the upper instrument room (22) is located above the upper handcart room (21).

3. The dual circuit compact medium voltage switchgear according to claim 2, characterized in that:

the lower cabinet (3) comprises a lower handcart room (31) and a lower instrument room (32);

the lower instrument room (32) is positioned above the lower handcart room (31).

4. The dual circuit compact medium voltage switchgear according to claim 2 or 3, characterized in that:

two static contact boxes (41) are arranged in the cable chamber (4);

one end of the static contact box (41) is connected with one end of the upper handcart room (21);

one end of the other static contact box (41) is connected with one end of the lower handcart room (31);

the other ends of the two static contact boxes (41) are connected with one end of a branch bus (42);

the other ends of the branch buses (42) are connected with one ends of current transformers (43);

the other ends of the current transformers (43) are connected with one end of a grounding switch (44);

the other end of the grounding switch (44) is connected with one end of a cable (45);

and a grounding main bus (46) is arranged on the inner side of the bottom of the cable chamber (4).

5. The dual circuit compact medium voltage switchgear according to claim 4, characterized in that:

two static contact boxes (41) are arranged on one side inside the bus chamber (1);

a plurality of main buses (11) which are arranged in a vertical line are arranged on the other side in the bus chamber (1);

one end of each main bus (11) is connected with one end of each static contact box (41);

the other end of the static contact box (41) is connected with the other end of the upper handcart room (21);

the other end of the static contact box (41) is connected with the other end of the lower handcart room (31).

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