CN213692745U

CN213692745U - Middle-arranged high-voltage switch cabinet

Info

Publication number: CN213692745U
Application number: CN202022508508.6U
Authority: CN
Inventors: 张太阳; 李家坤; 于超群
Original assignee: Shenyang Feichi Electrical Equipment Co ltd
Current assignee: Shenyang Feichi Electrical Equipment Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-13
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a central high-voltage switch cabinet, which comprises a cabinet body, wherein an upper contact box and a bus bar sheath are respectively arranged in a main bus bar chamber, the upper contact box is connected with the main bus bar by adopting a cylindrical branch bus bar, a lower contact box, a grounding switch and a current transformer are respectively arranged in a cable chamber, the current transformer is arranged between the lower contact box and the grounding switch, an insulating cover is arranged outside the current transformer, the current transformer is arranged below the lower contact box, the connection and the maintenance are convenient, the volume of the whole cabinet body is reduced when the operation space for connecting cables is enlarged, and the occupied space of the 24kV cabinet body in the existing market is relatively large; the utility model discloses it is less to take up an area of the space, and the equipment is firm pleasing to the eye, and each electrical component is rationally distributed, and convenient operation safe and reliable satisfies the distribution requirement of 24kV electric wire netting completely.

Description

Middle-arranged high-voltage switch cabinet

Technical Field

The utility model relates to a cubical switchboard, especially a put formula high tension switchgear in.

Background

The high-voltage switch cabinet is mainly used for receiving and distributing electric energy in power plants, substations and distribution rooms of industrial and mining enterprises, and can realize control, protection and detection of circuits. According to the principle of simplifying voltage level, reducing transformation level and optimizing network structure, in the area with high load density and large power supply range, 24kV voltage level is gradually adopted for power supply. The high-voltage switch cabinet in the prior art has the following defects: the cabinet has the advantages of large volume, large occupied space, unreasonable layout of the internal space of the cabinet body and electrical components, high power consumption, inconvenient operation and maintenance and poor safety.

SUMMERY OF THE UTILITY MODEL

The technical task of the utility model is to provide a well formula high tension switchgear to the not enough of above prior art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a put formula high tension switchgear, includes the cabinet body, the cabinet body comprises preceding cabinet case and back cabinet case, wherein be in including main bus-bar room and cable chamber in the back cabinet incasement be equipped with contact box and generating line sheath in the main bus-bar room respectively be equipped with the main bus-bar in the generating line sheath, it adopts columniform branch generating line to connect to go up between contact box and the main bus-bar be equipped with down contact box, earthing switch, current transformer in the cable chamber respectively, current transformer sets up under between contact box and earthing switch current transformer's outside is equipped with the insulating boot.

Further improvement: the lower contact box, the grounding switch and the current transformer are connected by adopting a cylindrical bus.

The utility model has the advantages that: arrange current transformer in the below of contact box down, be convenient for connect and maintain, when the operating space when having increaseed connecting cable, still reduced the volume of the whole cabinet body, 24kV cabinet body overall dimension on the existing market is: 1000 (wide) 1820 (deep) 2370 (high); the occupied space is relatively large; the utility model discloses an overall dimension does: 750 (wide) 1610 (deep) 2250 (high) is firm and beautiful in assembly, small in occupied space, reasonable in layout of each electrical component, convenient, safe and reliable in operation, and completely meets the power distribution requirement of a 24kV power grid.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in the figure, the central high-voltage switch cabinet comprises a cabinet body 1, wherein the cabinet body 1 consists of a front cabinet box 11 and a rear cabinet box 12, the rear cabinet box 12 comprises a main bus chamber 121 and a cable chamber 122, an upper contact box 2 and a bus sheath 4 are respectively arranged in the main bus chamber 121, a main bus is arranged in the bus sheath 4, the upper contact box 2 is connected with the main bus by adopting a cylindrical branch bus 3, a lower contact box 5, a grounding switch 7 and a current transformer 6 are respectively arranged in the cable chamber 122, the current transformer 6 is arranged between the lower contact box 5 and the grounding switch 7, and an insulating cover 8 is arranged outside the current transformer 6; the lower contact box 5, the grounding switch 7 and the current transformer 6 are connected by adopting a cylindrical branch bus.

The working principle is as follows: firstly, in order to ensure the safe use of the switch cabinet 1, when the distance between two adjacent buses 3 needs to meet 10KV, the bus distance is not less than 125mm, and when 24KV, the bus distance is not less than 180mm, however, in the existing switch cabinet, the buses for connecting all electric devices are all rectangular buses, and the width of the rectangular buses is larger, so that a larger space is needed when a plurality of cabinets are distributed in parallel, and finally the width of the whole cabinet is increased.

Current transformer 6 sets up in current cubical switchboard in the back cabinet door department of back cabinet case 12 to need keep certain distance between current transformer 6 and earthing switch 7 and the lower contact box 5, thereby lead to the degree of depth grow of the whole cabinet body 1, after setting up current transformer 6 between earthing switch 7 and lower contact box 5, adopt insulating boot 8 to protect current transformer 6, so not only guaranteed the safety of using, but also reduced the degree of depth of whole regulation.

Finally, the height of the cabinet body 1 can be reduced by separately arranging the main bus chamber 121 and the cable chamber 122, and finally the volume of the whole switch cabinet is reduced, and usually, 4 to 5 cabinets are needed to be arranged side by side to form a group of switch cabinets, so that after the volume of a single cabinet is reduced, the occupied space of each group of switch cabinets is greatly reduced, and the installation requirement of each group of switch cabinets is reduced.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a put formula high tension switchgear, includes the cabinet body, the cabinet body comprises preceding cabinet case and back cabinet case, its characterized in that: the rear cabinet box comprises a main bus chamber and a cable chamber, an upper contact box and a bus sheath are respectively arranged in the main bus chamber, a main bus is arranged in the bus sheath, the upper contact box is connected with the main bus through a cylindrical branch bus, a lower contact box, a grounding switch and a current transformer are respectively arranged in the cable chamber, the current transformer is arranged between the lower contact box and the grounding switch, and an insulating cover is arranged outside the current transformer.

2. The centrally-mounted high-voltage switchgear cabinet as claimed in claim 1, characterized in that: the lower contact box, the grounding switch and the current transformer are connected by adopting a cylindrical bus.