CN216251169U

CN216251169U - Transformer substation bus bridge grounding device

Info

Publication number: CN216251169U
Application number: CN202122896207.XU
Authority: CN
Inventors: 郭佳强; 唐一程; 沙鹏飞; 刘聪
Original assignee: PowerChina Chongqing Engineering Corp Ltd
Current assignee: PowerChina Chongqing Engineering Corp Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-08
Anticipated expiration: 2031-11-24

Abstract

The utility model provides a grounding device of a bus bridge of a transformer substation, which comprises a contact panel, wherein the contact panel is arranged on the contact panel; the first end face of the contact panel is used for being attached to the bus bar, the second end face of the contact panel is integrally provided with a conducting ring used for hanging a ground wire, and the conducting ring is provided with a conducting part which can be in conducting connection with the ground wire; and the other outer surfaces of the contact panel except the first end surface are subjected to insulation treatment, and the other outer surfaces of the conductive ring except the conductive part are subjected to insulation treatment. The grounding wire and the conducting ring are convenient and firm to articulate, and the technical problems that the traditional electricity testing operation efficiency is low and the grounding wire and the conductor are easy to fall off are solved.

Description

Transformer substation bus bridge grounding device

Technical Field

The utility model relates to the technical field of grounding of transformer substations, in particular to a grounding device for a transformer substation bus bridge.

Background

The grounding wire is connected to the outer shell of the electrical equipment and can lead out unsafe electric charges or leakage current generated due to various reasons. In the process of overhauling the transmission line, the ground wire must be connected after the line is powered off.

In an electric power system, in order to prevent a main transformer short circuit in a near area from causing damage to a transformer, when a 10KV bus bridge of a main transformer of a transformer substation is totally insulated and encapsulated, at present, when the bus bridge of the transformer substation is powered off and a ground wire is hooked, an insulated encapsulating sheath can only be broken to expose a conductor, and the ground wire is hooked on the conductor.

The problems existing in the prior art are as follows: (1) when a worker needs to test electricity, the insulating packaging sheath needs to be broken, although the electricity can be tested, the protection of a grounding wire is avoided, and the danger of induction electric shock exists; (2) after the equipment is overhauled, the exposed conductor part needs to be insulated and encapsulated again; (3) the connection wire and the conductor are not installed in place and are easy to fall off, so that the hidden danger of influencing personal safety exists.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a grounding device for a bus bridge of a transformer substation, which has a simple structure, is convenient for grounding of the bus bridge and has high maintenance operation efficiency.

In order to achieve the above object, the present invention provides a grounding device for a bus bridge of a transformer substation, comprising a contact panel; the first end face of the contact panel is used for being attached to the bus bar, the second end face of the contact panel is integrally provided with a conducting ring used for hanging a ground wire, and the conducting ring is provided with a conducting part which can be in conducting connection with the ground wire; and the other outer surfaces of the contact panel except the first end surface are subjected to insulation treatment, and the other outer surfaces of the conductive ring except the conductive part are subjected to insulation treatment.

Furthermore, the contact panel is provided with a plurality of penetrating first bolt holes, the busbar is provided with corresponding second bolt holes, and the fastening bolt sequentially penetrates through the contact panel and the busbar to be screwed with the fastening nut.

Further, the number of the first bolt holes is eight, and the first bolt holes are arranged in two rows.

Further, the touch panel is of a rectangular structure.

Furthermore, the conducting ring is of a U-shaped structure and comprises two parallel vertical rods and a cross rod integrally connected between the two vertical rods, and the conducting part is configured on the cross rod.

Further, the middle portion of the crossbar is a conductive portion.

Furthermore, the cross rod is connected with the two vertical rods in a smooth transition mode.

Further, the grounding device of the transformer substation bus bridge further comprises a shell, wherein the shell comprises a shell body and a bus bar fixing body; the shell body is coated outside the connecting part of the contact panel and the bus bar, and the shell body is provided with a through hole for the conducting ring to pass through; the bus bar fixing body extends out of the shell body and is fixed on the bus bar

Further, the number of the bus bar fixing bodies is two, and the bus bar fixing bodies are respectively arranged at the front end portion and the rear end portion of the housing body.

The utility model has the following beneficial effects:

the current path is provided through the contact panel, the conducting ring is used for grounding, grounding of the bus bar can be quickly achieved by only mounting the grounding wire on the conducting ring when the circuit is overhauled, mounting is convenient, and overhauling operation efficiency is high. Therefore, the technical problems that the insulation package needs to be broken firstly in the traditional electricity testing process, and the exposed conductor needs to be insulated and packaged again after the overhaul is finished are solved. In addition, the grounding wire and the conducting ring are connected in a hanging mode, hanging is firm, and the technical problem that the traditional grounding wire and the conductor are easy to fall off is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a touch panel and a conductive ring according to the present invention;

FIG. 2 is a schematic view of a contact panel and a conductive ring with an insulating layer according to the present invention;

FIG. 3 is a schematic view of an assembly process of the contact panel and bus bar of the present invention;

FIG. 4 is a schematic view of the assembled contact panel and bus bar of the present invention;

FIG. 5 is a schematic view of the grounding device for hanging the electric wire according to the present invention;

fig. 6 is a cross-sectional view of the grounding device of the present invention assembled with a bus bar.

Reference numerals

1-a touch panel; 1 a-a first end face; 1 b-a second end face; 1 c-first bolt hole; 2-conducting ring; 2 a-a conductive portion; 2 b-a vertical bar; 2 c-a cross-bar; 3-bus bar; 4-a ground line; 5-bolt; 6-a nut; 7-a housing; 7 a-a housing body; 7 b-a busbar fixing body; 7 c-via.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the following further detailed description of the embodiments of the present application with reference to the drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1, the present invention discloses a substation bus bridge grounding device, which includes a contact panel 1, wherein a first end surface 1a of the contact panel 1 is used for being attached to a bus bar 3 (see fig. 3) and being electrically connected to the bus bar 3, a second end surface 1b of the contact panel 1 is integrally provided with a conductive ring 2 for hanging a ground wire 4 (see fig. 5), and the conductive ring 2 has a conductive portion 2a capable of being electrically connected to the ground wire 4.

As shown in fig. 2, the outer surfaces of the touch panel 1 except the first end surface 1a in contact with the bus bar 3 are insulated, and the outer surfaces of the conductive ring 2 except the conductive portion 2a are also insulated. In an embodiment, the corresponding outer surfaces of the touch panel 1 and the conductive ring 2 may be covered with an insulating sheath or subjected to an insulating vulcanization treatment.

As shown in fig. 3 and 4, the contact panel 1 is provided with a plurality of first bolt holes 1c therethrough, the bus bar 3 is provided with corresponding second bolt holes, and the fastening bolt 5 is screwed with the nut 6 through the contact panel 1 and the bus bar 3 in sequence, thereby fixedly connecting the contact panel 1 and the bus bar 3.

As shown in fig. 4 and 5, the contact panel 1 is attached to the bus bar 3 to provide a current path, the conductive ring 2 is used for grounding, and when the circuit is overhauled, the grounding of the bus bar 3 can be quickly realized only by mounting the grounding wire 4 on the conductive ring, so that the mounting is convenient, and the overhauling operation efficiency is high. Therefore, the technical problems that the insulation package needs to be broken firstly in the traditional electricity testing process, and the exposed conductor needs to be insulated and packaged again after the overhaul is finished are solved.

In addition, the contact panel 1 and the bus bar 3 are fastened and installed through bolts, the installation is convenient and rapid, the connection is firm, and the hanging connection mode is adopted between the grounding wire 4 and the conducting ring, so that the technical problem that the traditional connecting wire and the conductor are easy to fall off is solved.

Further, as shown in fig. 1 and 2, the number of the first bolt holes 1c is eight, and two rows are provided, so that the contact panel 1 and the bus bar can be firmly mounted.

Further, the contact panel 1 is of a rectangular structure, so that the contact panel is matched with the bus bar 3 in shape, and the degree of adhesion between the bus bar 3 and the contact panel 1 is improved.

Further, as shown in fig. 2, the conductive ring 2 is a U-shaped structure, and includes two parallel vertical rods 2b and a cross rod 2c integrally connected between the two vertical rods 2b, the cross rod 2c is smoothly and transitionally connected with the two vertical rods 2b, and the conductive portion 2a is disposed on the cross rod 2 c. More preferably, the intermediate portion of the crossbar 2c is configured as a conductive portion, thereby facilitating mounting of the ground wire 4.

Further, the grounding device for the bus bridge of the transformer substation further comprises a shell 7, and the shell comprises a shell body 7a and a bus bar fixing body 7 b. The casing body 7a covers the outside of the connection part of the contact panel 1 and the bus bar 3, and the casing body 7a is provided with a via hole 7c for the conductive ring 2 to pass through. The housing body 7a covers the connecting portion of the contact panel 1 and the bus bar 3, thereby enhancing the overall appearance of the bus bridge.

The bus bar fixing body 7b is protruded from the housing body 7a and fixed on the bus bar 3. In an embodiment, the number of the bus bar fixing bodies 7b may be two, and the two bus bar fixing bodies are respectively disposed at the front and rear end portions of the housing body 7a, so that the housing 7 and the bus bar 3 are conveniently and fixedly connected.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A grounding device of a bus bridge of a transformer substation is characterized by comprising a contact panel; the first end face of the contact panel is used for being attached to the bus bar, the second end face of the contact panel is integrally provided with a conducting ring used for hanging a ground wire, and the conducting ring is provided with a conducting part which can be in conducting connection with the ground wire; and the other outer surfaces of the contact panel except the first end surface are subjected to insulation treatment, and the other outer surfaces of the conductive ring except the conductive part are subjected to insulation treatment.

2. The substation bus bridge grounding device according to claim 1, wherein the contact panel is provided with a plurality of first bolt holes therethrough, the bus bar is provided with corresponding second bolt holes, and the fastening bolt sequentially penetrates through the contact panel and the bus bar to be screwed with the fastening nut.

3. The substation bus bridge grounding device of claim 2, wherein the number of the first bolt holes is eight and is configured in two rows.

4. The substation bus bridge grounding device of claim 1, wherein the contact panel is of a rectangular body structure.

5. The grounding device for a substation bus bridge as claimed in claim 1, wherein the conductive ring is U-shaped and includes two parallel vertical rods and a cross rod integrally connected between the two vertical rods, and the conductive part is disposed on the cross rod.

6. The substation bus bridge grounding arrangement of claim 5, wherein the middle portion of the crossbar is configured as a conductive portion.

7. The substation bus bridge grounding device of claim 5, wherein the cross bar is in smooth transition connection with both of the vertical bars.

8. The substation bus bridge grounding device of claim 1, further comprising a housing body and a bus bar fixture; the shell body is coated outside the connecting part of the contact panel and the bus bar, and the shell body is provided with a through hole for the conducting ring to pass through; the bus bar fixing body extends out of the shell body and is fixed on the bus bar.

9. The substation bus bridge grounding device according to claim 8, wherein the number of the bus bar fixing bodies is two, and the bus bar fixing bodies are respectively arranged at the front end and the rear end of the housing body.