CN211151072U

CN211151072U - High-voltage switch cabinet

Info

Publication number: CN211151072U
Application number: CN201921985328.8U
Authority: CN
Inventors: 单亦磊; 叶理克; 万明华; 黄小丽
Original assignee: Cnc Group Shanghai Co ltd
Current assignee: Cnc Group Shanghai Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-31
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a high-voltage distribution technical field especially relates to a flat top formula high tension switchgear that high-voltage distribution used. In order to improve the safety of the high-voltage switch cabinet and the dynamic stability of the A-phase branch bus, the utility model provides a high-voltage switch cabinet, in the bus chamber, the three-phase horizontal bus is arranged in a structure like the Chinese character pin, the A-phase horizontal bus and the C-phase horizontal bus are close to the left side wall of the bus chamber, the A-phase horizontal bus is positioned above the C-phase horizontal bus, and the B-phase horizontal bus is close to the right side wall of the bus chamber; the three-phase contact box is located the right side wall of generating line room and is close to the bottom of generating line room, and A looks contact box is connected with A looks horizontal bus through the A looks branch generating line that is the slope setting, and B looks contact box is connected with B looks horizontal bus through the B looks branch generating line that is vertical setting, and C looks contact box is connected with C looks horizontal bus through the C looks branch generating line that is the level setting. The utility model discloses high tension switchgear security is high and A looks branch generating line dynamic stability is good.

Description

High-voltage switch cabinet

Technical Field

The utility model relates to a high-voltage distribution technical field especially relates to a flat top formula high tension switchgear that high-voltage distribution used.

Background

In the flat top type high voltage switch cabinet shown in fig. 1, the horizontal bus 01 of the a phase, the horizontal bus 02 of the B phase and the horizontal bus 03 of the C phase are arranged in a vertical shape and are located in the same vertical plane, and the horizontal bus of the a phase is located at the top, so that the horizontal bus 01 of the a phase in the horizontal bus structure is far away from the contact box of the a phase, and the branch bus 04 of the a phase is too long, and the dynamic stability is poor. In order to solve the problem of poor dynamic stability of the phase a branch bus 04, a person skilled in the art usually sets a high-voltage insulator in the middle of the phase a branch bus 04 to support the phase a branch bus 04. However, when the high-voltage insulator supports the phase a branch bus 04, the high-voltage insulator is not only difficult to be mounted and fixed, but also easily interferes with other parts in the bus chamber, and the use is affected. In addition, because the specification (cross-sectional area) of the branch bus is small, the loop resistance of the phase a branch bus 04 is too large, and when a large current is passed through for a long time, the phase a branch bus 04 may heat seriously, so that the high-voltage switch cabinet has potential safety hazards, and even safety accidents occur.

SUMMERY OF THE UTILITY MODEL

In order to improve the safety of the flat-top high-voltage switch cabinet and the dynamic stability of the A-phase branch bus, the utility model provides a high-voltage switch cabinet, in the bus chamber of the high-voltage switch cabinet, the A-phase horizontal bus, the B-phase horizontal bus and the C-phase horizontal bus are arranged in a structure like a Chinese character pin, the A-phase horizontal bus and the C-phase horizontal bus are close to the left side wall of the bus chamber, the A-phase horizontal bus is positioned above the C-phase horizontal bus, and the B-phase horizontal bus is close to the right side wall of the bus chamber; a looks contact box, B looks contact box and C looks contact box are located on the right side wall of generating line room and be close to the bottom of generating line room, just A looks contact box through be the slope set up A looks branch generating line with A looks horizontal bus bar is connected, B looks contact box through be vertical set up B looks branch generating line with B looks horizontal bus bar is connected, C looks contact box through be the level set up C looks branch generating line with C looks horizontal bus bar is connected. Like this, A looks horizontal generating line, B looks horizontal generating line and C looks horizontal generating line are "article" style of calligraphy structure and arrange, compare in prior art, the utility model discloses the distance between A looks horizontal generating line and the A looks contact box among the high tension switchgear shortens greatly, and the A looks branch generating line of connecting A looks horizontal generating line and A looks contact box is the slope setting, can effectively shorten the length of A looks branch generating line, thereby improve the dynamic stability of A looks branch generating line, and reduce the loop resistance of A looks branch generating line greatly under the unchangeable condition of branch generating line specification, avoid A looks branch generating line to seriously generate heat when long-time circular telegram and arouse the incident, improve high tension switchgear's security. In addition, the length of the A-phase branch bus is shortened, and the manufacturing cost of the high-voltage switch cabinet can be reduced.

Preferably, the C-phase horizontal bus and the a-phase horizontal bus are located in the same vertical plane, and the B-phase horizontal bus and the a-phase horizontal bus are located in the same horizontal plane. In this way, the C-phase horizontal bus bar and the contact box can be positioned in the same plane, so that the distance between the A-phase horizontal bus bar and the A-phase contact box can be further shortened.

Preferably, the joint ends of the phase a horizontal bus, the phase B horizontal bus and the phase C horizontal bus are provided with insulating sleeves. Therefore, the insulation among the A-phase horizontal bus, the B-phase horizontal bus and the C-phase horizontal bus can be enhanced through the insulating sleeve, and the use safety of the high-voltage switch cabinet is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a conventional high-voltage switch cabinet;

fig. 2 is a schematic structural diagram of the high-voltage switch cabinet of the present invention.

Detailed Description

The high-voltage switch cabinet of the present invention will be described in detail with reference to fig. 2.

As shown in fig. 2, in the bus bar room of the high voltage switch cabinet of the present invention, the a-phase horizontal bus bar 21, the B-phase horizontal bus bar 22 and the C-phase horizontal bus bar 23 are arranged in a "pin" shape, and the a-phase horizontal bus bar 21 and the C-phase horizontal bus bar 23 are close to the left sidewall 11 of the bus bar room, and the a-phase horizontal bus bar 21 is located above the C-phase horizontal bus bar 23, and the B-phase horizontal bus bar 22 is close to the right sidewall 12 of the bus bar room; the A-phase contact box 31, the B-phase contact box 32 and the C-phase contact box 33 are located on the right side wall 12 of the bus bar room and are close to the bottom of the bus bar room, the A-phase contact box 31 is connected with the A-phase horizontal bus bar 21 through an A-phase branch bus bar 41 which is obliquely arranged, the B-phase contact box 32 is connected with the B-phase horizontal bus bar 22 through a B-phase branch bus bar 42 which is vertically arranged, and the C-phase contact box 33 is connected with the C-phase horizontal bus bar 23 through a C-phase branch bus bar 43 which is horizontally arranged. Like this, a looks horizontal generating line 21, B looks horizontal generating line 22 and C looks horizontal generating line 23 are "article" style of calligraphy structure and arrange, compare in prior art, the utility model discloses the distance between A looks horizontal generating line and the A looks contact box among the high tension switchgear shortens greatly, and the A looks branch generating line 41 of connecting A looks horizontal generating line 21 and A looks contact box 31 is the slope setting, can effectively shorten A looks branch generating line 41's length, thereby improve A looks branch generating line 41's dynamic stability, and reduce A looks branch generating line 41's loop resistance greatly under the unchangeable condition of branch generating line specification, avoid A looks branch generating line 41 to seriously generate heat when long-time circular telegram and arouse the incident, improve high tension switchgear's security. In addition, the length of the branch bus bar 41 of the phase A is shortened, and the manufacturing cost of the high-voltage switch cabinet can be reduced. Preferably, the C-phase horizontal bus bar 23 and the a-phase horizontal bus bar 21 are located in the same vertical plane, and the B-phase horizontal bus bar 22 and the a-phase horizontal bus bar 21 are located in the same horizontal plane. In this way, the C-phase horizontal bus bar 23 and the contact box can be located in the same plane, so that the distance between the a-phase horizontal bus bar 21 and the a-phase contact box 31 can be further shortened. Preferably, the joint ends of the phase a horizontal bus bar 21, the phase B horizontal bus bar 22 and the phase C horizontal bus bar 23 are all provided with an insulating sleeve 5. Thus, the insulation between the a-phase horizontal bus 21, the B-phase horizontal bus 22, and the C-phase horizontal bus 23 can be enhanced by the insulating sleeve 5, and the safety of use of the high-voltage switchgear can be further improved.

Claims

1. A high-voltage switch cabinet is characterized in that in a bus chamber of the high-voltage switch cabinet, an A-phase horizontal bus, a B-phase horizontal bus and a C-phase horizontal bus are arranged in a structure like a Chinese character pin, the A-phase horizontal bus and the C-phase horizontal bus are close to the left side wall of the bus chamber, the A-phase horizontal bus is located above the C-phase horizontal bus, and the B-phase horizontal bus is close to the right side wall of the bus chamber; a looks contact box, B looks contact box and C looks contact box are located on the right side wall of generating line room and be close to the bottom of generating line room, just A looks contact box through be the slope set up A looks branch generating line with A looks horizontal bus bar is connected, B looks contact box through be vertical set up B looks branch generating line with B looks horizontal bus bar is connected, C looks contact box through be the level set up C looks branch generating line with C looks horizontal bus bar is connected.

2. The high voltage switchgear cabinet according to claim 1, wherein the C-phase horizontal bus bar and the a-phase horizontal bus bar are located in the same vertical plane, and the B-phase horizontal bus bar and the a-phase horizontal bus bar are located in the same horizontal plane.

3. The high-voltage switch cabinet according to claim 1 or 2, wherein the joint ends of the A-phase horizontal bus bar, the B-phase horizontal bus bar and the C-phase horizontal bus bar are provided with insulating sleeves.