CN207183917U - A kind of gas tank structure of environmentally friendly gas-insulated switchgear - Google Patents

Abstract

The utility model discloses a gas box structure of an environment-friendly gas insulated switchgear, which is characterized in that it comprises a gas box shell, and the inner wall of the gas box shell is fixed with a grounding contact and an incoming and outgoing line casing, and the grounding contact is connected through a screw rod. The contact tube, the bottom of the contact tube is connected to the vacuum bubble through a flexible connection, one end of the vacuum bubble is connected to one end of the insulating rod, the other end of the insulating rod passes through the air box shell, the other end of the vacuum bubble and the lower busbar respectively It is connected with the bushing of the incoming and outgoing lines, the contact tube is connected with the static contact, and the static contact is respectively connected with the three main bus bushings through the three upper busbars, and the three main bus bushings are distributed in the shape of a character. The utility model has the advantages of simple and exquisite structure, small size, safety and reliability, and high space utilization rate. It adopts the character distribution of the upper main busbar bushing, which increases the distance between each busbar and increases the safety distance; the layout structure is exquisite and can Save the use of copper bars; the main circuit is assembled to form a whole, which is easy to disassemble and install.

Description

Gas box structure of an environment-friendly gas insulated switchgear

technical field

The utility model relates to a gas box structure of an environment-friendly gas insulated switchgear, which belongs to the field of medium and high voltage switch cabinets.

Background technique

In the patent CN105244798A "an environmentally friendly gas-insulated ring network cabinet", the structural layout characteristics of the environmentally friendly gas-insulated ring network cabinet were published. As shown in Figure 1, the disadvantages of the main circuit layout of this environmentally friendly gas-insulated cabinet are: three-phase The poles are arranged in a straight line along the width of the cabinet, resulting in a small distance between the incoming terminals of the main busbar and a narrow insulation distance.

Contents of the invention

The technical problem to be solved by the utility model is: to provide a safe, reliable, small volume, and high space utilization gas tank structure of an environmentally friendly gas insulated switchgear, which solves the problem that the three-phase poles are arranged in a line along the cabinet width direction, As a result, the distance between the incoming terminals of the main busbar is small and the insulation distance is very narrow.

In order to solve the above technical problems, the technical solution of the present invention is to provide a gas box structure of an environmentally friendly gas insulated switchgear, which is characterized in that it includes a gas box shell, and the inner wall of the gas box shell is fixed with a grounding contact and an incoming and outgoing line The bushing and the grounding contact are connected to the contact tube through a screw rod, and the bottom of the contact tube is connected to the vacuum bubble through a flexible connection. One end of the vacuum bubble is connected to one end of the insulating rod, and the other end of the insulating rod passes through the air box shell. The other end of the bubble is respectively connected to the inlet and outlet bushings through the lower busbar, the contact tube is connected to the static contact, the static contact is respectively connected to the three main busbars through the three upper busbars, and the three main busbars are connected to each other. It is distributed in a character shape.

The utility model has the advantages of simple and exquisite structure, small size, safety and reliability, and high space utilization rate. It adopts the character distribution of the upper main bus bushing, the middle three-position switch is combined with the circuit breaker switch, and the lower cable bushing is connected through the branch bus. The layout of the connection increases the distance between each busbar and increases the safety distance; the layout structure is exquisite, which can save the use of copper bars; the main circuit is assembled to form a whole, which is easy to disassemble and install.

Description of drawings

Fig. 1 is a structural schematic diagram of an existing environment-friendly gas-insulated ring main unit;

Fig. 2 is a left view of the gas box structure of an environmentally friendly gas insulated switchgear;

Fig. 3 is a rear view of a gas box structure of an environment-friendly gas insulated switchgear.

Detailed ways

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

The utility model is a gas box structure of an environment-friendly gas insulated switchgear, as shown in Fig. 2 and Fig. 3, comprising a gas box shell 1, and the inner wall of the gas box shell 1 is fixed with a grounding contact 6 and an inlet and outlet line sleeve 12 , the ground contact 6 is connected to the contact tube 5 through the screw rod 7, the bottom of the contact tube 5 is connected to the vacuum bubble 9 through the soft connection 8, one end of the vacuum bubble 9 is connected to one end of the insulating pull rod 10, and the other end of the insulating pull rod 10 Through the air box shell 1, the other end of the vacuum bubble 9 is respectively connected to the inlet and outlet bushing 12 through the lower busbar 11, the contact tube 5 is connected to the static contact 4, and the static contact 4 is connected to the three upper busbars 3 respectively. It is connected with three main busbar bushings 2, and the three main busbar bushings 2 are distributed in the shape of a character.

The utility model adopts the combination of the upper product-shaped parallel cabinet busbar, the middle three-position switch (the middle three-position switch includes the static contact 4, the contact tube 5, the ground contact 6, and the screw rod 7) and the combination of the vacuum circuit breaker switch 1. The layout of the main circuit of the lower cable bushing: on the basis of rational use of the width and depth of the cabinet, the main busbar inlet terminals are arranged in a square shape, which increases the distance between the busbars and increases the insulation safety distance . In addition, the character-shaped main busbar and the three-position switch are connected in a straight line, the copper bar is easy to process, the installation is exquisite, and the amount of copper bar can be saved. The three-position switch and the vacuum circuit breaker are assembled and installed outside the air box, and then installed in the air box by moving as a whole. The installation is convenient and efficient, and the error rate is low.

Claims (1)

1. A gas box structure for an environmentally friendly gas insulated switchgear, characterized in that it comprises a gas box shell (1), and the inner wall of the gas box shell (1) is fixed with a grounding contact (6) and an incoming and outgoing line sleeve (12 ), the grounding contact (6) is connected to the contact tube (5) through a screw rod (7), and the bottom of the contact tube (5) is connected to the vacuum bulb (9) through a soft connection (8), and the vacuum bulb (9) One end is connected to one end of the insulating pull rod (10), the other end of the insulating pull rod (10) passes through the air box shell (1), and the other end of the vacuum bubble (9) passes through the lower busbar (11) and the inlet and outlet bushing ( 12) connection, the contact tube (5) is connected with the static contact (4), the static contact (4) is respectively connected with the three main bus bushings (2) through the three upper bus bars (3), and the three main bus bars The busbar bushings (2) are distributed in the shape of a Chinese character.