CN203180418U

CN203180418U - Breaker chamber used for gas insulation switch equipment

Info

Publication number: CN203180418U
Application number: CN 201320146515
Authority: CN
Inventors: 杜北江; 阙银中; 林大喜
Original assignee: ABB T&D Technology AG
Current assignee: ABB Schweiz AG
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-09-04
Anticipated expiration: 2023-03-28

Abstract

The utility model provides a breaker chamber used for gas insulation switch equipment. Three groups of current transformers are distributed in the breaker chamber. A user can select a quantity of the current transformers according to a demand. Simultaneously, the breaker chamber adopts a new structure design. The needed current transformers are arranged reasonably, support of the conventional breaker chamber is improved and original support compartments are reduced. Through adopting a mode that the current transformers are preassembled into modules and then are assembled to the breaker chamber, installation of the partial current transformers is convenient and rapid.

Description

Be used for the breaker chamber on the gas-insulated switchgear

Technical field

The utility model belongs to the power product technical field, is specifically related to a kind of breaker chamber that is applied to gas-insulated switchgear, is particularly useful on the sulfur hexafluoride gas-insulating switchgear.

Background technology

Generally, provide maximum three groups of instrument transformers because the restriction of original breaker chamber, can only built-in one group of instrument transformer, and with other two groups be placed on outside the air chamber.

Fig. 1 is an existing circuit breaker chamber, during work, its below has a compartment frame to support, and two bus-bar rooms are arranged on it, bus-bar room and back bus-bar room before being respectively, housing 18 links to each other with two bus-bar rooms respectively, electric current arrives copper bar 12, through circuit breaker 13, copper bar 14, block current transformer 15, copper bar 16, copper bar 17 again through the wall bushing 11 of band instrument transformer, to the wall bushing 11 of second band instrument transformer, link the back bus-bar room more at last.

Because the restriction of each side such as cabinet structure and installation, it is little to be placed on the outer instrument transformer volume of air chamber, and insulation level is limited, and capacity is very low, usually can not meet customer need.

The utility model content

It is a kind of for the breaker chamber on the gas-insulated switchgear that the purpose of this utility model is to provide, and its structure is more reasonable, and capacity is bigger, the breaker chamber of assembling more convenient and quicker.Of the present utility model for the breaker chamber on the gas-insulated switchgear, current transformer all is positioned at breaker chamber inside, and is connected with the breaker chamber home loop.

According to most preferred embodiment of the present utility model, described current transformer comprises first current transformer, second current transformer and the 3rd current transformer.The current transformer module of described first and second current transformers for dressing up in advance.

According to most preferred embodiment of the present utility model, the breaker chamber below does not have the compartment of support.

Breaker chamber of the present utility model inserts the air chamber home loop with being placed on two groups of outer current transformers of air chamber originally, has solved and has been placed on the problem that air chamber foreign current instrument transformer capacity is little, insulation is poor originally; Adopt current transformer to dress up module in advance simultaneously and be assembled into mode on the air chamber again, make the installation of current transformer easier to be faster.

Description of drawings

Fig. 1 is existing for breaker chamber structural representation on the gas-insulated switchgear;

Fig. 2 is of the present utility model for the breaker chamber structural representation on the gas-insulated switchgear;

Fig. 3 is prepackage transformer component figure;

Fig. 4 is present breaker chamber and the splicing figure that supports compartment.

Embodiment

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

Fig. 2 is schematic diagram of the present utility model.Of the present utility model for the breaker chamber on the gas-insulated switchgear, first current transformer 23 and second current transformer 27 are linked into the home loop of breaker chamber, and namely three groups of current transformers 23,27,29 all are positioned at the home loop of breaker chamber.

As shown in Figure 2, breaker chamber of the present utility model comprises that specifically wall bushing 21, sleeve pipe are connected copper bar 22, first current transformer 23, instrument transformer and are connected copper bar 24, circuit breaker 25, instrument transformer with circuit breaker first and are connected copper bar 26, second current transformer 27 with circuit breaker second, connect copper bar 28 and be connected copper bar 210, housing 211 with the 3rd current transformer 29, sleeve pipe with instrument transformer second with instrument transformer first.Each parts is linked in sequence, and returns another wall bushing and forms the loop.

First current transformer 23 in the breaker chamber of the present utility model, second current transformer 27 and the 3rd current transformer 29 can adopt identical current transformer, also can adopt different current transformers.

As shown in Figure 3, each of first current transformer 23 pre-installed with transducer bracket 232 earlier mutually, forms sub-assembly and lifts air chamber again; Second current transformer 27 is adopted in the same way, with the transducer bracket prepackage, forms sub-assembly and lifts air chamber more earlier.

Adopt bigger air chamber also to save the support compartment is installed under the breaker chamber again, make whole cabinet more succinct, saved installation time simultaneously.During work, be supported on ground below the housing, link to each other with two bus-bar rooms above.

Be illustrated in figure 4 as original breaker chamber 31 and the installation diagram that supports compartment 32, the effect of supporting compartment 32 is that the height of breaker chamber 31 can be reached always with the breaker chamber height of other switch cubicles, thereby carries out the breaker chamber splicing.No longer need to support compartment 32 after adopting scheme of the present utility model, it highly can be directly reaches always with breaker chamber height with other switch cubicles.

Of the present utility model for the breaker chamber structure on the gas-insulated switchgear, the instrument transformer capacity has promoted.Owing to adopt new air chamber structure, all instrument transformers are built in the air chamber, solved insulation and the capacity problem of original instrument transformer fully, make that simultaneously the assembling of whole cabinet is simple more, convenient.

Although disclose preferred embodiment of the present utility model and accompanying drawing for the purpose of illustration, 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. a breaker chamber that is used on the gas-insulated switchgear comprises that it is characterized in that, current transformer (23,27,29) all is positioned at breaker chamber inside, and is connected with the breaker chamber home loop.

2. according to claim 1 for the breaker chamber on the gas-insulated switchgear, it is characterized in that: described current transformer comprises first current transformer (23), second current transformer (27) and the 3rd current transformer (29).

3. according to claim 1 and 2 for the breaker chamber on the gas-insulated switchgear, it is characterized in that: described first current transformer (23) and second current transformer (27) are respectively the current transformer module of dressing up in advance.

4. according to claim 3 for the breaker chamber on the gas-insulated switchgear, it is characterized in that: the breaker chamber below does not have the compartment of support.