CN-224233143-U - Compact type switch equipment using sleeve type current transformer

CN224233143UCN 224233143 UCN224233143 UCN 224233143UCN-224233143-U

Abstract

The utility model discloses compact type switching equipment applying a sleeve type current transformer, and relates to the technical field of alternating current closed switching equipment. The utility model specifically comprises a cabinet body with two connected side walls, wherein the side walls of the cabinet body connected with the cabinet body are provided with mounting holes, the mounting holes are provided with mounting components, the mounting components are used for fixing the sleeve type current transformer, and the two ends of the sleeve type current transformer are respectively positioned in the two cabinet bodies. The utility model is based on the structural improvement of the cabinet body of the existing switch equipment, so that the sleeve type current transformer can be installed in the existing cabinet body without customizing the widened cabinet body again, thereby achieving the effect of reducing the cost.

Inventors

XING ZHIGANG
LI TINGCHUN
LIN KUN
PENG HONG
Qiu Houping
YAN MIN
WANG CHUNAI
HE ZONGZHI
LUO TAO
Man Ruiqian
GAO JIQIANG
WANG BI

Assignees

川开电气有限公司
青岛特锐德电气股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250409

Claims (10)

1. The compact type switch device applying the sleeve type current transformer (2) is characterized by comprising a cabinet body (1) with two side walls (3) connected, wherein the side walls (3) of the cabinet body (1) connected with the cabinet body (1) are provided with mounting holes, mounting components are arranged at the mounting holes and used for fixing the sleeve type current transformer (2), and two ends of the sleeve type current transformer (2) are respectively located in the two cabinet bodies (1).
2. Compact switchgear device employing a bushing current transformer (2) according to claim 1, characterized in that the mounting assembly comprises a back plate (8), the back plate (8) being provided with a through hole (11) for the bushing current transformer (2) to pass through, the bushing current transformer (2) being fixed to the back plate (8).
3. A compact switchgear device employing a bushing type current transformer (2) according to claim 2, wherein the back plate (8) is fixedly connected to the side wall (3) where the mounting hole is located, and wherein the back plate (8) closes the mounting hole when connected to the side wall (3).
4. The compact switchgear using the bushing type current transformer (2) according to claim 2, wherein the installation assembly further comprises a spacer (9), the bushing type current transformer (2) is fixedly connected with the spacer (9), the spacer (9) is fixedly connected with the back plate (8), and the spacer (9) is used for changing the distance between the bushing type current transformer (2) and the side wall (3) where the installation hole is located.
5. Compact switchgear employing a bushing type current transformer (2) according to claim 4, characterized in that the bushing type current transformer (2) side wall (3) is provided with an ear plate (10), the ear plate (10) is provided with a fixing hole, the pad (9) is provided with a connecting hole corresponding to the fixing hole position, and the fixing hole and the connecting hole are used for fastening the bushing type current transformer (2) and the pad (9).
6. Compact switchgear employing a bushing current transformer (2) according to claim 5, characterized in that the two opposite sides of the bushing current transformer (2) are provided with ear plates (10) respectively, and that the ear plates (10) of the two sides are connected with two pads (9) respectively.
7. Compact switchgear using bushing type current transformer (2) according to claim 5, characterized in that the spacer (9) is an edge-folded sheet, the sheet edge being folded to form a three-dimensional structure.
8. The compact switchgear using the telescopic current transformer (2) according to claim 5, wherein three-phase branch busbar is arranged in the cabinet body (1), the three-phase branch busbar comprises an A-phase branch busbar (4), a B-phase branch busbar (5) and a C-phase branch busbar (6), the telescopic current transformer (2) and the branch busbar with the closest corresponding distance are respectively positioned at two sides of the backboard (8) based on the distance between the telescopic current transformer (2) and the corresponding two branch busbars, and a gasket (9) is arranged between the telescopic current transformer (2) and the backboard (8).
9. Compact switchgear employing a bushing type current transformer (2) according to claim 6, characterized in that the pad (9) comprises a first pad (91) and a second pad (92), the first pad (91) and the second pad (92) being adapted to be connected with the ear plate (10) close to the back plate (8) and to the sides remote from the back plate (8), respectively.
10. Compact switchgear device employing bushing current transformers (2) according to claim 9, characterized in that the ear plates (10) are provided with interfaces (12) for external wires, the interfaces (12) of each bushing current transformer (2) being located on the same side of the corresponding ear plate (10).

Description

Compact type switch equipment using sleeve type current transformer Technical Field The utility model relates to the technical field of alternating current closed switch equipment, and particularly provides compact switch equipment applying a sleeve type current transformer. Background The alternating-current type switch cabinet is internally provided with a three-phase alternating-current system, the three-phase alternating-current system comprises conductive components for current distribution and connection, and the conductive components are an A-phase branch busbar, a B-phase branch busbar and a C-phase branch busbar. When two switch cabinets in the switch equipment are connected, the A-phase branch busbar is connected with the A-phase branch busbar, the B-phase branch busbar is connected with the B-phase branch busbar, the C-phase branch busbar is connected with the C-phase branch busbar, and a current transformer is required to be configured when the branch busbars are connected. The existing KYN28A-12 alternating current metal-enclosed switchgear has a mature current transformer installation mode, but sleeve type current transformers can be selected in a large current project or a special project with the system current exceeding 2500A. When the sleeve type current transformer is adopted, the sleeve type current transformer is usually arranged in a cabinet body. When the sleeve type current transformer is installed in a cabinet body, the size of the internal space of the original cabinet body is insufficient for installing the sleeve type current transformer, so that the size of the cabinet body needs to be widened, and the cabinet body needs to be additionally manufactured. Therefore, this conventional installation method makes the general cabinet unusable, and requires additional customization of the cabinet, resulting in a significant increase in cost. Disclosure of utility model The utility model provides compact type switching equipment applying a sleeve type current transformer, which is used for solving the problem that the cost is increased because a cabinet body with a widened size is required to be customized during the installation of the sleeve type current transformer. The technical scheme of the utility model is as follows: The utility model provides an use compact switchgear of bushing type current transformer, includes the cabinet body that two lateral walls link to each other, and the cabinet body is provided with the mounting hole with the lateral wall that the cabinet body links to each other, mounting hole department is provided with the installation component, the installation component is used for fixed bushing type current transformer, and the installation component makes bushing type current transformer's both ends be located two cabinets respectively internal. In this scheme, because the through-hole has been seted up to the lateral wall between the cabinet body and the cabinet body for the installation component can be when fixed sleeve type current transformer, makes sleeve type current transformer's both ends be located two cabinets internal respectively. The installation mode fully utilizes the space between the internal structure of the cabinet body and the side wall, and the space between the structures at the two sides of the installation hole can be used for accommodating the sleeve type current transformer. The arrangement mode can be directly processed on the cabinet body of the existing switch equipment, does not need to additionally customize and widen the cabinet body, and achieves the effect of reducing cost. The installation assembly comprises a back plate, wherein the back plate is provided with a through hole for the bushing type current transformers to pass through, and the bushing type current transformers are fixed on the back plate. In the scheme, each sleeve type current transformer can be firstly installed and fixed on the backboard, and then the backboard is connected with the side wall of the cabinet body. The installation mode has the advantages of high installation efficiency, and because each sleeve type current transformer can be installed at an open position when being installed on the back plate, the installation mode is more convenient to install and operate in a narrow space inside the cabinet body, and therefore the installation efficiency is improved. Preferably, the back plate is fixedly connected with the side wall where the mounting hole is located, and the mounting hole is sealed when the back plate is connected with the side wall. In this scheme, backplate seals the mounting hole after the installation, makes two cabinet bodies still keep the state of mutual isolation, can not lead to two cabinet bodies direct intercommunication, can ensure that the cabinet body is overall arrangement originally does not change. The back plate is connected with the side wall of the cabinet body, so that the position of the back plate is fixed. And a plu