CN220627686U - Deep fusion polar column with partial discharge capacity elimination function - Google Patents

Abstract

The utility model relates to a deep fusion pole with a partial discharge capacity eliminating function. The utility model comprises a pole body; the vacuum arc-extinguishing chamber is arranged in the pole body; the voltage sensor mounting chamber is arranged in the pole body, and a copper insert is arranged at the top of the voltage sensor mounting chamber; the conducting rod assembly is arranged in the pole body and is positioned at the side between the vacuum arc extinguishing chamber and the voltage sensor mounting chamber; the insulation pull rod assembly penetrates through the conductive rod assembly along the bottom of the pole body and is connected to the bottom of the vacuum arc-extinguishing chamber; the insulating sealing piece comprises a tray, a stud extending along the upper end face of the tray and in threaded connection with the copper insert, and a locking column extending along the lower end face of the tray; the sealing gasket is arranged between the insulating sealing piece and the top of the voltage sensor mounting chamber; and the high-voltage lead is led out from the top of the vacuum arc-extinguishing chamber and is connected with the copper insert. The utility model solves the problem of overlarge partial discharge capacity caused by exposing the copper insert in the deep fusion polar column.

Description

Deep fusion polar column with partial discharge capacity elimination function

Technical Field

The utility model relates to the technical field of deep fusion polar posts, in particular to a deep fusion polar post with a partial discharge capacity eliminating function.

Background

Along with the continuous development of ZW32 switches, more and more technologies are fused in the pole, and as the depth-fused pole is designed to meet different configuration requirements, three positions for installing voltage sensors are reserved, sometimes the ZW32 switch does not need to install three voltage sensors according to requirements, and the copper inserts connected with the voltage sensors in the depth-fused pole are exposed to increase the local discharge capacity, so that the local discharge capacity exceeds the numerical value specified by the standard.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problem that the partial discharge capacity is overlarge due to the fact that the copper insert at the hollow installation position of the deep fusion pole is exposed to the air in the prior art.

In order to solve the above technical problems, the present utility model provides a deep fusion pole with a function of eliminating partial discharge, comprising:

a pole body;

the vacuum arc-extinguishing chamber is arranged inside the pole body;

the voltage sensor mounting chamber is arranged inside the pole body, and a copper insert is arranged at the top of the voltage sensor mounting chamber;

the conducting rod assembly is arranged in the pole body and is positioned at the side between the vacuum arc extinguishing chamber and the voltage sensor mounting chamber;

the insulation pull rod assembly penetrates through the conductive rod assembly along the bottom of the pole body and is connected to the bottom of the vacuum arc-extinguishing chamber;

the insulating sealing piece comprises a tray, a stud extending along the upper end face of the tray and in threaded connection with the copper insert, and a locking column extending along the lower end face of the tray;

a gasket disposed between the insulating seal and the top of the voltage sensor mounting chamber;

and the high-voltage lead is led out from the top of the vacuum arc-extinguishing chamber and is connected with the copper insert.

In one embodiment of the utility model, a main cavity and a transition cavity connected with the main cavity are arranged on the lower side part of the copper insert in the voltage sensor mounting chamber, and a transition disc positioned in the transition cavity is arranged between the stud and the upper end face of the tray.

In one embodiment of the utility model, the circumference of the junction of the main cavity and the transition cavity is provided with a transition cambered surface.

In one embodiment of the utility model, at least part of the surface of the sealing gasket is in contact with the upper end face of the tray, the side end face of the transition disc, the side end face of the stud portion and the transition cambered surface.

In one embodiment of the utility model, a concave connection cambered surface is arranged on the connecting part between the transition disc and the tray in the circumferential direction.

In one embodiment of the utility model, the upper end surface of the tray is circumferentially provided with an arc angle.

In one embodiment of the present utility model, the post body is filled with a casting body.

In one embodiment of the utility model, the material of the casting body comprises epoxy resin.

In one embodiment of the utility model, the gasket is a rubber gasket.

In one embodiment of the present utility model, the locking post is an external hexagonal post.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the depth fusion pole with the partial discharge capacity eliminating function has the characteristics of simple structure, small volume, convenient installation and low production cost, and solves the problem of overlarge partial discharge capacity caused by exposing the copper insert in the depth fusion pole.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

Fig. 1 is a schematic diagram of the overall structure of a depth fusion pole with a partial discharge capacity elimination function according to the present utility model.

Fig. 2 is an enlarged partial schematic view of fig. 1.

Fig. 3 is a schematic view of the structure of the insulating seal of the present utility model.

Fig. 4 is a schematic structural view of the deep fusion pole with partial discharge capacity elimination function of the present utility model, with the insulating seal omitted.

Description of the specification reference numerals:

1. a pole body; 11. casting a body;

2. a vacuum arc extinguishing chamber;

3. a voltage sensor installation chamber; 31. a main chamber; 32. a transition chamber; 33. a transitional cambered surface;

4. a copper insert;

5. a conductive rod assembly;

6. an insulating pull rod assembly;

7. an insulating seal; 71. a tray; 72. a stud; 73. locking the column; 74. a transition disc; 75. a connecting cambered surface; 76. arc angle;

8. a sealing gasket;

9. high voltage leads.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

Referring to fig. 1 to 4, the deep fusion pole with the partial discharge capacity eliminating function has excellent insulating property and higher safety performance, can effectively eliminate the partial discharge phenomenon, and improves the operation stability and reliability of a power system. The utility model comprises the following steps:

a pole body 1;

the vacuum arc-extinguishing chamber 2 is arranged inside the pole body 1;

the voltage sensor mounting chamber 3 is arranged inside the pole body 1, and a copper insert 4 is arranged at the top of the voltage sensor mounting chamber 3;

the conducting rod assembly 5 is arranged in the pole body 1 and is positioned at the side between the vacuum arc extinguishing chamber 2 and the voltage sensor mounting chamber 3, and is used for realizing electrical connection;

an insulating pull rod assembly 6 penetrates through the conducting rod assembly 5 along the bottom of the pole body 1 and is connected to the bottom of the vacuum arc extinguishing chamber 2;

an insulating seal 7 including a tray 71, a stud 72 extending along an upper end surface of the tray 71 and screwed with the copper insert 4, and a locking post 73 extending along a lower end surface of the tray 71;

a gasket 8 provided between the insulating seal 7 and the top of the voltage sensor mounting chamber 3;

and a high-voltage lead 9 is led out from the top of the vacuum arc-extinguishing chamber 2 and is connected with the copper insert 4.

Specifically, the lower part of the voltage sensor mounting chamber 3, which is located on the copper insert 4, is provided with a main cavity 31 and a transition cavity 32 connected with the main cavity 31, and a transition disc 74 located in the transition cavity 32 is arranged between the stud 72 and the upper end surface of the tray 71.

Specifically, a transition cambered surface 33 is arranged at the circumference of the joint part of the main cavity 31 and the transition cavity 32.

Specifically, at least a part of the surface of the gasket 8 is in contact with the upper end surface of the tray 71, the side end surface of the transition disc 74, the side end surface of the stud 72, and the transition arc surface 33.

Specifically, an inwardly concave engagement cambered surface 75 is provided on the transition plate 74 in the circumferential direction of the connecting portion with the tray 71.

Specifically, the upper end surface of the tray 71 is circumferentially provided with an arc angle 76.

Specifically, the post body 1 is filled with a casting body 11.

Specifically, the material of the casting body 11 includes epoxy resin.

Specifically, the sealing pad 8 is a rubber pad.

Specifically, the locking post 73 is an outer hexagonal post.

In use, the gasket 8 is mounted on the insulating seal 7 between the stud 72 and the tray 71, the stud 72 is screwed into the copper insert 4 by an external hexagonal wrench through an external hexagonal locking post 73, at least part of the surface of the gasket 8 is contacted with the upper end face of the tray 71, the side end face of the transition disc 74, the side end face of the stud 72 and the transition cambered surface 33, and then the voltage sensor is mounted in the voltage sensor mounting chamber 3. When power is needed, the insulating pull rod assembly 6 moves upwards to enable the movable end and the static end of the vacuum arc-extinguishing chamber 2 to be combined, contact pressure exists between the movable end and the static end, and at the moment, the circuit is electrified and is conducted; after the vacuum arc extinguishing chamber 2 is opened, the moving contact and the fixed contact are separated, the arc is extinguished in vacuum in a zero crossing way, the voltage at the position of a fracture is increased, and the arc is led to the insulating sealing member 7 through the high-voltage lead 9, so that the problem of overlarge partial discharge is solved.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.

Claims (4)

1. The utility model provides a degree of depth fuses utmost point post with partial discharge volume elimination function which characterized in that includes:

a pole body (1);

the vacuum arc-extinguishing chamber (2) is arranged inside the pole body (1);

the voltage sensor mounting chamber (3) is arranged inside the pole body (1), and a copper insert (4) is arranged at the top of the voltage sensor mounting chamber (3);

the conducting rod assembly (5) is arranged in the pole body (1) and is positioned at the side between the vacuum arc extinguishing chamber (2) and the voltage sensor mounting chamber (3);

an insulating pull rod assembly (6) penetrates through the conducting rod assembly (5) along the bottom of the pole body (1) and is connected to the bottom of the vacuum arc-extinguishing chamber (2);

an insulating sealing member (7) comprising a tray (71), a stud (72) extending along the upper end surface of the tray (71) and in threaded connection with the copper insert (4), and a locking post (73) extending along the lower end surface of the tray (71);

a gasket (8) provided between the insulating seal (7) and the top of the voltage sensor mounting chamber (3);

a high-voltage lead (9) is led out from the top of the vacuum arc-extinguishing chamber (2) and is connected with the copper insert (4);

the voltage sensor mounting chamber (3) is positioned at the lower side part of the copper insert (4) and is provided with a main cavity (31) and a transition cavity (32) connected with the main cavity (31), and a transition disc (74) positioned in the transition cavity (32) is arranged between the stud (72) and the upper end surface of the tray (71);

a transition cambered surface (33) is arranged at the circumference of the joint part of the main cavity (31) and the transition cavity (32);

at least part of the surface of the sealing gasket (8) is in contact with the upper end surface of the tray (71), the side end surface of the transition disc (74), part of the side end surface of the stud (72) and the transition cambered surface (33);

a concave connection cambered surface (75) is circumferentially arranged at the connecting part between the transition disc (74) and the tray (71);

an arc angle (76) is circumferentially arranged on the upper end surface of the tray (71);

the locking column (73) is an outer hexagonal column.

2. The deep fusion pole with partial discharge capacity elimination function according to claim 1, wherein the pole body (1) is filled with a casting body (11).

3. A depth fusion pole with partial discharge capacity cancellation according to claim 2, characterized in that the material of the casting body (11) comprises epoxy resin.

4. The deep fusion pole with partial discharge capacity elimination function according to claim 1, characterized in that the sealing gasket (8) is a rubber gasket.