CN219394034U

CN219394034U - High tension switchgear convenient to cable installation and maintenance

Info

Publication number: CN219394034U
Application number: CN202320004403.8U
Authority: CN
Inventors: 林耀龙; 王烟平
Original assignee: Fujian Qunlong Switch Co ltd
Current assignee: Fujian Qunlong Switch Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-07-21
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a high-voltage switch cabinet convenient for cable installation and maintenance, and relates to the technical field of high-voltage switch cabinets. The high-voltage switch cabinet comprises a high-voltage switch cabinet body, wherein a bus chamber is arranged on the upper right side of the inside of the high-voltage switch cabinet body, an insulator is arranged on the inner wall of the bus chamber, the tail end of the insulator is connected with a static contact, one end, far away from the insulator, of the static contact is provided with a static contact box, the other end of the static contact box is connected with a circuit breaker handcart, a cable chamber is arranged at the lower end of the bus chamber, and a grounding mechanism is arranged in the cable chamber. According to the utility model, the position of the current transformer can be limited by arranging the locking component, so that the current transformer is prevented from shifting, and meanwhile, the current transformer is arranged in the bus chamber, so that the space in the cable chamber can be effectively increased, the cable can be conveniently and subsequently installed and maintained, and the problem that the service life of the high-voltage switch cabinet body is influenced due to inconvenient cable overhaul is avoided.

Description

High tension switchgear convenient to cable installation and maintenance

Technical Field

The utility model belongs to the technical field of high-voltage switch cabinets, and particularly relates to a high-voltage switch cabinet convenient for cable installation and maintenance.

Background

The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of a power system and has the functions of on-off, control or protection. The high-voltage switch cabinet is used as an electric product with the voltage class of 3.6 kV-550 kV, and the high-voltage isolating switch, the grounding switch, the high-voltage load switch, the high-voltage automatic superposition and sectionalizer, the high-voltage operating mechanism, the high-voltage explosion-proof power distribution device, the high-voltage switch cabinet and the like are large.

The switch cabinet has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection and the like, plays an important role in various different places such as residential communities, high-rise buildings and the like, and the existing high-voltage switch cabinet often installs a transformer in a cable room, so that staff is inconvenient to overhaul and maintain the cable.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a high-voltage switch cabinet which is convenient for cable installation and maintenance, and can effectively solve the problems in the prior art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a high-voltage switch cabinet convenient for cable installation and maintenance, which comprises a high-voltage switch cabinet body, wherein a bus chamber is arranged on the right upper side of the inside of the high-voltage switch cabinet body, an insulator is arranged on the inner wall of the bus chamber, the tail end of the insulator is connected with a static contact, one end of the static contact, which is far away from the insulator, is provided with a static contact box, the other end of the static contact box is connected with a circuit breaker handcart, a cable chamber is arranged at the lower end of the bus chamber, and a grounding mechanism is arranged in the cable chamber.

Further, the insulator is uniformly arranged in the bus chamber, and a sleeve body is arranged on the outer side of the insulator.

Further, the insulator is electrically connected with the static contact, and the static contact box is symmetrical about the horizontal center line of the circuit breaker handcart.

Further, a current transformer is arranged at the lower end of the inside of the bus chamber, locking parts are symmetrically arranged on one side of the current transformer, the locking parts are connected with the inner wall of the bus chamber, and one end of the current transformer is connected with the fixed contact.

Further, the grounding mechanism comprises a lightning arrester, an induction type sensor and a zero sequence transformer, wherein the lightning arrester is connected to the lower end of the inside of the cable room, the induction type sensor is arranged at the upper end of the lightning arrester and is fixed with the inner wall of the cable room, the zero sequence transformer is connected to the lower end of the lightning arrester, and the zero sequence transformer is connected with the current transformer.

Further, the front surface of the high-voltage switch cabinet body is provided with an adjusting rotating shaft, the outer side of the adjusting rotating shaft is connected with a visual cabinet door, and the visual cabinet door is tightly attached to the high-voltage switch cabinet body.

The utility model has the following beneficial effects:

according to the utility model, the position of the current transformer can be limited by arranging the locking component, so that the current transformer is prevented from shifting, and meanwhile, the current transformer is arranged in the bus chamber, so that the space in the cable chamber can be effectively increased, the cable can be conveniently and subsequently installed and maintained, and the problem that the service life of the high-voltage switch cabinet body is influenced due to inconvenient cable overhaul is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic top view of a high voltage switchgear of the present utility model;

fig. 2 is a schematic diagram of the inside of the high voltage switchgear of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a high voltage switch cabinet body; 2. a bus bar chamber; 3. an insulator; 4. a sleeve body; 5. a static contact box; 6. a stationary contact; 7. a current transformer; 701. a locking member; 8. a lightning arrester; 9. an inductive sensor; 10. a zero sequence transformer; 11. a circuit breaker trolley; 12. adjusting the rotating shaft; 13. and visualizing the cabinet door.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-2, the utility model discloses a high-voltage switch cabinet convenient for cable installation and maintenance, which comprises a high-voltage switch cabinet body 1, wherein a bus chamber 2 is arranged on the right upper side of the inside of the high-voltage switch cabinet body 1, an insulator 3 is arranged on the inner wall of the bus chamber 2, the tail end of the insulator 3 is connected with a fixed contact 6, one end, far away from the insulator 3, of the fixed contact 6 is provided with a fixed contact box 5, the other end of the fixed contact box 5 is connected with a circuit breaker handcart 11, a cable chamber is arranged at the lower end of the bus chamber 2, and a grounding mechanism is arranged in the cable chamber.

Wherein as shown in fig. 1-2, insulator 3 evenly sets up in the inside of bus-bar chamber 2, and the outside of insulator 3 is provided with sleeve pipe body 4, specifically, can protect insulator 3 through sleeve pipe body 4 that sets up, and insulator 3 evenly sets up at bus-bar chamber 2 inner wall simultaneously, can guarantee the radiating effect of insulator 3.

As shown in fig. 2, the insulator 3 is electrically connected with the static contact 6, and the static contact boxes 5 are symmetrical about a horizontal center line of the circuit breaker handcart 11, specifically, the plurality of groups of static contact boxes 5 can facilitate the supply of subsequent electric quantity, and further, the subsequent treatment effect can be ensured.

Wherein as shown in fig. 2, the inside lower extreme of bus-bar chamber 2 is provided with current transformer 7, one side of current transformer 7 is the symmetry and is provided with locking part 701, and locking part 701 is connected with bus-bar chamber 2 inner wall, the one end of current transformer 7 is connected with stationary contact 6, specifically, can carry out spacingly through setting up locking part 701 to current transformer 7's position, can avoid current transformer 7 to appear shifting, simultaneously, install current transformer 7 in bus-bar chamber 2, can increase the indoor space of cable effectively, so that follow-up installation and maintenance are carried out to the cable, avoid follow-up inconvenient to the cable maintenance, and influence the life of high-voltage switch cabinet body 1.

Wherein as shown in fig. 2, grounding mechanism includes arrester 8, inductive sensor 9 and zero sequence transformer 10, arrester 8 connects the inside lower extreme at the cable chamber, inductive sensor 9 sets up the upper end at arrester 8 to fixed mutually with the cable chamber inner wall, zero sequence transformer 10 connects the lower extreme at arrester 8, and zero sequence transformer 10 is connected with current transformer 7, specifically, the arrester 8 that sets up can be grounded, and then can guarantee the security of high tension switchgear body 1, simultaneously because the space of cable chamber increases, can make things convenient for follow-up to overhaul the cable conveniently.

As shown in fig. 1 and fig. 2, an adjusting rotating shaft 12 is disposed on the front surface of the high-voltage switch cabinet body 1, a visual cabinet door 13 is connected to the outer side of the adjusting rotating shaft 12, the visual cabinet door 13 is tightly attached to the high-voltage switch cabinet body 1, specifically, the disposed adjusting rotating shaft 12 is further connected to the visual cabinet door 13, and then the high-voltage switch cabinet body 1 can be plugged.

Working principle: firstly, place the high tension switchgear body 1 in the assigned position to need know the multiunit insulator 3 that sets up in bus-bar chamber 2 inboard evenly set up at bus-bar chamber 2 inner wall, can guarantee the radiating effect of insulator 3, sleeve pipe body 4 can protect insulator 3 simultaneously, and can carry out spacingly to the position of current transformer 7 through setting up locking part 701, can avoid current transformer 7 to appear the skew, simultaneously, install current transformer 7 in bus-bar chamber 2, can increase the indoor space of cable effectively, in order to follow-up installation and maintenance to the cable, avoid follow-up inconvenience to the cable maintenance, and influence the life of high tension switchgear body 1, the arrester 8 that set up can be earthed, and then can guarantee the security of high tension switchgear body 1, simultaneously because the space increase of cable chamber, can convenient follow-up overhauls the cable.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims

1. The utility model provides a high tension switchgear convenient to cable installation and maintenance, includes high tension switchgear body (1), its characterized in that, the inside upper right side of high tension switchgear body (1) is provided with busbar room (2), the inner wall of busbar room (2) is provided with insulator (3), the tail end connection of insulator (3) has static contact (6), the one end that keeps away from insulator (3) of static contact (6) is provided with static contact box (5), the other end of static contact box (5) is connected with circuit breaker handcart (11), the lower extreme of busbar room (2) is provided with the cable room, the inside of cable room is provided with grounding mechanism.

2. The high-voltage switch cabinet convenient for cable installation and maintenance according to claim 1, wherein the insulator (3) is uniformly arranged in the bus bar chamber (2), and a sleeve body (4) is arranged on the outer side of the insulator (3).

3. A high voltage switchgear convenient for cable installation and maintenance according to claim 2, characterized in that the electrical connection between the insulator body (3) and the stationary contact (6) and the stationary contact box (5) is symmetrical with respect to the horizontal centre line of the circuit breaker trolley (11).

4. A high-voltage switch cabinet convenient for cable installation and maintenance according to claim 3, characterized in that a current transformer (7) is arranged at the lower end of the inside of the bus-bar chamber (2), locking parts (701) are symmetrically arranged on one side of the current transformer (7), the locking parts (701) are connected with the inner wall of the bus-bar chamber (2), and one end of the current transformer (7) is connected with a fixed contact (6).

5. The high-voltage switch cabinet convenient for cable installation and maintenance according to claim 1, wherein the grounding mechanism comprises a lightning arrester (8), an inductive sensor (9) and a zero sequence transformer (10), the lightning arrester (8) is connected to the lower end of the interior of the cable chamber, the inductive sensor (9) is arranged at the upper end of the lightning arrester (8) and is fixed with the inner wall of the cable chamber, the zero sequence transformer (10) is connected to the lower end of the lightning arrester (8), and the zero sequence transformer (10) is connected with the current transformer (7).

6. The high-voltage switch cabinet convenient for cable installation and maintenance according to claim 1, wherein an adjusting rotating shaft (12) is arranged on the front surface of the high-voltage switch cabinet body (1), a visual cabinet door (13) is connected to the outer side of the adjusting rotating shaft (12), and the visual cabinet door (13) is tightly attached to the high-voltage switch cabinet body (1).