CN203351226U

CN203351226U - Current-carrying bus bar inside airtight chamber of gas insulation switch device and gas insulation switch device utilizing same current-carrying bus bar

Info

Publication number: CN203351226U
Application number: CN 201320311607
Authority: CN
Inventors: 格秀山; 李玉华; 邓显波
Original assignee: ABB T&D Technology AG
Current assignee: ABB Schweiz AG
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2013-12-18
Anticipated expiration: 2023-05-31

Abstract

The utility model provides a current-carrying bus bar inside an airtight chamber of a gas insulation switch device and the gas insulation switch device utilizing the same current-carrying bus bar. The bus bar is provided with a copper pipe bus bar body (1). Two ends of the copper pipe bus bar body are provided with flattening parts (2). Each flattening part is provided with a circular through hole (3). The circular through holes (3) are disposed at two end parts, which are adjacent to the flattening parts (2), of the copper pipe bus bar body (1). The diameter of each circular through hole ranging from 5 to 20 mm is preferred. The utility model further provides the gas insulation switch device. The device comprises any of the above-mentioned current-carrying bus bar. The current-carrying bus bar saves copper material, raises peak tolerance capability by two to three times, and greatly reduces influence to the environment.

Description

The gas-insulated switchgear of the current carrying bus on gas-insulated switchgear in sealed gas chamber and this current carrying bus of employing

Technical field

The utility model belongs to the power product technical field, is specifically related to a kind of tubulose copper busbar be applied in the gas-insulated switchgear air chamber, loaded current in distribution line.

background technology

At present, the current carrying bus in conventional gases at high pressure insulated switching installation air chamber is bar-shaped copper busbar, and this bus " collection skin " effect when loaded current makes the tubulose copper busbar become its substitute.The tubulose copper busbar, when meeting the demand of switchgear, can reduce the use amount of copper material widely, in the reduction product cost, reduces the impact on environment simultaneously.

But existing current carrying bus is being saved copper material, and lifting peak value tolerance aspect still remains to be improved.The utility model provides a kind of like this current carrying bus.

the utility model content

An aspect of the present utility model, provide the current carrying bus in sealed gas chamber on a kind of gas-insulated switchgear, the copper pipe bus main body, and the copper bus of described tubulose two ends all have flattening section of flattening section to be provided with wearing circular hole.

According to most preferred embodiment of the present utility model, described to wearing circular hole two ends near flattening section on the copper pipe bus main body.To preferably 5～20 millimeters of the diameters of wearing circular hole.

On the other hand of the present utility model, a kind of gas-insulated switchgear is provided, comprise any one current carrying bus as above.

Current carrying bus of the present utility model has been saved copper material, has promoted the peak value tolerance, 2～3 times, greatly reduces the impact on environment.

The accompanying drawing explanation

Figure 1A-1C is respectively the bus L1-L3 of the first configuration of the present utility model;

Fig. 2 A-2C is respectively the bus L1-L3 of the second configuration of the present utility model.

Embodiment

Below with reference to accompanying drawing, the specific descriptions of optional execution mode of the present utility model have been provided.

As shown in Figure 1A-1C, be respectively the bus L1-L3 of the first configuration of the present utility model; Fig. 2 A-2C is respectively the bus L1-L3 of the second configuration of the present utility model.Copper pipe bus main body 1, through first operation-clod wash processing, forms three-dimensional path; Then carry out second operation work-two ends flattening section 2; Carry out the three process-punching press slotted hole and flush after the flattening section of two ends; Finally carrying out the 4th procedure processes wearing circular hole 3 at two ends flattening section place's near-end.

The parameters such as the external diameter of copper pipe bus main body 1 and wall thickness, with respect to the peak current in short-term of the rated current that will carry and tolerance, are fixed by rigorous simulation trial.When carrying identical rated current, adopt copper pipe bus to substitute the copper rod bus, can save copper material 1/3.When the tolerance peak current, the tolerance of copper pipe bus is 2～3 times of copper rod bus.

The design of two ends flattening section 2, the connection with respect to copper rod flattening section with corresponding electric conductor, the larger and copper material of area of dissipation saves 1/3.

To the size range of wearing circular hole 3, be 5～20 millimeters of diameters, its position that is located at flattening section near-end is most important.To wearing functional 2 points that can be summarized as of circular hole 3:

One, before air chamber is filled with SF6 gas, airtight operation can be utilized and extract the air in copper pipe to wearing circular hole 3, and in the assurance air chamber, SF6 gas is pure.

Its two, when equipment moves, SF6 gas pure in air chamber can be by entering copper pipe bus to wearing circular hole 3.The alternate cycles of SF6 gas inside and outside copper pipe bus, can take away part bus heating heat, thereby reduce the temperature rise of bus.

Comprehensive above feature, copper pipe bus main body 1, two ends flattening section 2 and to wearing the reasonable disposition of circular hole 3 make current carrying bus of the present utility model have following obvious advantage with respect to the copper rod bus:

1) copper material sectional area, comprehensively save 30%.

2) copper material weight, comprehensively save 1/3.

3) peak value tolerance, promote 2～3 times.

4), in cost-saving, greatly reduce the impact on environment.

Equally, adopt the gas-insulated switchgear of current carrying bus of the present utility model, also there is above-mentioned advantage.Adopt the gas-insulated switchgear of current carrying bus of the present utility model, other structures do not need to change, and therefore, in the utility model, no longer describe in detail.

Although disclose for the purpose of illustration preferred embodiment of the present utility model and accompanying drawing, the person skilled in the art, in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and protection range of the present utility model is as the criterion with the scope that appending claims was defined.

Claims

1. the current carrying bus in sealed gas chamber on a gas-insulated switchgear, copper pipe bus main body (1) is characterized in that: described copper pipe bus main body two ends all have flattening section of flattening section (2) to be provided with wearing circular hole (3).

2. the current carrying bus in sealed gas chamber on gas-insulated switchgear according to claim 1, is characterized in that: described to wearing circular hole (3) in upper two ends near flattening section (2) of copper pipe bus main body (1).

3. the current carrying bus in sealed gas chamber on gas-insulated switchgear according to claim 1 and 2, it is characterized in that: described is 5～20 millimeters to the diameter of wearing circular hole (3).

4. a gas-insulated switchgear, is characterized in that: comprise the described current carrying bus of claim 1-3 any one.