CN207664599U - A kind of closed high-pressure sides 72.5kV neutral point complexes - Google Patents
A kind of closed high-pressure sides 72.5kV neutral point complexes Download PDFInfo
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- CN207664599U CN207664599U CN201721618291.6U CN201721618291U CN207664599U CN 207664599 U CN207664599 U CN 207664599U CN 201721618291 U CN201721618291 U CN 201721618291U CN 207664599 U CN207664599 U CN 207664599U
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- gas chamber
- arrester
- switch blade
- earthing switch
- neutral point
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Abstract
A kind of closed high-pressure sides 72.5kV neutral point complexes, including：Closed type connecting structure, and the current transformer, earthing switch blade and the arrester that are arranged in the closed type connecting structure；The closed type connecting structure is separately connected the high-pressure side and ground of main transformer, forms full-closed structure；It after the high-pressure side neutral lead of main transformer is connected with current transformer, then connects respectively with earthing switch blade and arrester, earthing switch blade and arrester are all grounded.Current transformer is included in the neutral point complexes of high-pressure side by the utility model, using full-closed structure, then there is no bare exposed conductors, without considering the factors such as electrification safe distance, therefore 110kV main transformer of transformer substation room floor height and room width can effectively be reduced, and then reach saving space, save the purpose of construction investment.
Description
Technical field
The utility model is related to a kind of closed high-pressure sides 72.5kV neutral point complexes.
Background technology
Since key city land resource is more nervous, building is intensive, the site face of a considerable amount of 110kV substations
Product is limited, it has to use the arrangement form of main transformer and radiator two-piece unit.Main transformer two-piece unit cloth postpones, and builds
Object height is built to dramatically increase compared with General design scheme.
With more and more 110kV substations and periphery commercial building close neighbour or joint construction, it is unfavorable that depth of building increases
In with neighboring buildings and environment coordination, be also unfavorable for control engineering cost.
Utility model content
The utility model provides a kind of closed high-pressure sides 72.5kV neutral point complexes, using full-closed structure, nothing
It need to consider to charge the factors such as safe distance, can effectively reduce 110kV main transformer of transformer substation room floor height and room width, in turn
Reach saving space, saves the purpose of construction investment.
In order to achieve the above object, the utility model provides a kind of closed high-pressure sides 72.5kV neutral point complexes,
Including：Closed type connecting structure, and the current transformer, the earthing switch blade and lightning-arrest that are arranged in the closed type connecting structure
Device；
The closed type connecting structure is separately connected the high-pressure side and ground of main transformer, forms full-closed structure；
After the high-pressure side neutral lead of main transformer is connected with current transformer, then respectively with earthing switch blade and lightning-arrest
Device is connected, and earthing switch blade and arrester are all grounded.
The closed type connecting structure includes：The neutral point inlet wire sleeve of sealed connection, current transformer gas chamber, ground connection
Plug-in strip gas chamber and arrester gas chamber；
The neutral point inlet wire sleeve is used to accommodate the high-pressure side neutral lead of main transformer, and both ends connect respectively
Connect high-pressure side and the current transformer gas chamber of main transformer；
The current transformer gas chamber for accommodating current transformer, both ends be separately connected neutral point inlet wire sleeve and
Earthing switch blade gas chamber；
The earthing switch blade gas chamber is separately connected current transformer gas chamber and takes shelter from the thunder for accommodating earthing switch blade, both ends
Device gas chamber；
For the arrester gas chamber for accommodating arrester, both ends are separately connected earthing switch blade gas chamber and ground.
The height of the earthing switch blade gas chamber is less than 800mm.
The height of the arrester gas chamber is less than 1000mm.
Earthing switch blade and arrester are connected to grounded screen by grounding copper bar respectively.
Current transformer is included in the neutral point complexes of high-pressure side by the utility model, using full-closed structure, then
There is no bare exposed conductors, without considering the factors such as electrification safe distance, therefore can effectively reduce 110kV main transformer of transformer substation
Room floor height and room width, and then reach saving space, save the purpose of construction investment.
Description of the drawings
Fig. 1 is main transformer high-pressure side neutral point lead-out structure schematic diagram.
Fig. 2 is a kind of front view of the closed high-pressure sides 72.5kV neutral point complexes provided by the utility model.
Fig. 3 is that a kind of internal circuit of the closed high-pressure sides 72.5kV neutral point complexes provided by the utility model connects
Line chart.
Specific implementation mode
Below according to Fig. 1~Fig. 3, the preferred embodiment of the utility model is illustrated.
As shown in Figure 1, the 72.5kV neutral leads of main transformer high-pressure side are connected with current transformer, then with arrester
With earthing switch blade parallel connection, neutral point complexes used at present are mostly open type arrangement, and current transformer belongs to main transformer
Component is had exposed conductor in being arranged due to open type, in order to ensure safety, needs that safe distance is arranged between conductor, from
And constrain the floor height reduction of main transformer room.
In order to solve this problem, the utility model provides a kind of closed high-pressure sides 72.5kV neutral point complexes,
As shown in Figures 2 and 3, which includes：Closed type connecting structure, and the electric current being arranged in the closed type connecting structure are mutual
Sensor CT, earthing switch blade ES and arrester LA；
The closed type connecting structure is separately connected the high-pressure side and ground of main transformer, forms full-closed structure；
After the high-pressure side neutral lead of main transformer is connected with Current Transmit, then respectively with earthing switch blade ES and
Arrester LA series connection, earthing switch blade ES and arrester LA are grounded.
Further, the closed type connecting structure includes：Neutral point inlet wire sleeve 1, the current transformer of sealed connection
Gas chamber 2, earthing switch blade gas chamber 3 and arrester gas chamber 4；
The neutral point inlet wire sleeve 1 is used to accommodate the high-pressure side neutral lead of main transformer, both ends difference
Connect high-pressure side and the current transformer gas chamber 2 of main transformer；
For the current transformer gas chamber 2 for accommodating Current Transmit, both ends are separately connected neutral point inlet wire set
Cylinder 1 and earthing switch blade gas chamber 3；
For the earthing switch blade gas chamber 3 for accommodating earthing switch blade ES, both ends are separately connected 2 He of current transformer gas chamber
Arrester gas chamber 4；
For the arrester gas chamber 4 for accommodating arrester LA, both ends are separately connected earthing switch blade gas chamber 3 and ground.
Further, the grounded part of earthing switch blade ES and arrester LA pass through grounding copper bar respectively（It is not shown in figure）Under drawing
Line is to grounded screen.
In one embodiment of the utility model, for the closed high-pressure sides the 72.5kV neutral point complexes, it is
Achieve the purpose that effectively to reduce building floor height, the height for limiting arrester gas chamber 4 is less than 1000mm, the height of earthing switch blade gas chamber 3
Degree is less than 800mm, and then the height of the entire closed high-pressure sides 72.5kV neutral point complexes is less than 1800mm.
Current transformer is included in the neutral point complexes of high-pressure side by the utility model, using full-closed structure, then
There is no bare exposed conductors, without considering the factors such as electrification safe distance, therefore can effectively reduce 110kV main transformer of transformer substation
Room floor height and room width, and then reach saving space, save the purpose of construction investment.
Although the content of the utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read the above, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the scope of protection of the utility model should be by appended
Claim limit.
Claims (5)
1. a kind of closed high-pressure sides 72.5kV neutral point complexes, which is characterized in that include：Closed type connecting structure, with
And the current transformer in the closed type connecting structure is set（CT）, earthing switch blade（ES）And arrester（LA）；
The closed type connecting structure is separately connected the high-pressure side and ground of main transformer, forms full-closed structure；
The high-pressure side neutral lead of main transformer and current transformer（CT）After series connection, then respectively with earthing switch blade（ES）With
Arrester（LA）Series connection, earthing switch blade（ES）And arrester（LA）All it is grounded.
2. the closed high-pressure sides 72.5kV neutral point complexes as described in claim 1, which is characterized in that the closing
Formula connection structure includes：The neutral point inlet wire sleeve of sealed connection（1）, current transformer gas chamber（2）, earthing switch blade gas chamber（3）
With arrester gas chamber（4）；
The neutral point inlet wire sleeve（1）High-pressure side neutral lead for accommodating main transformer, both ends connect respectively
Connect high-pressure side and the current transformer gas chamber of main transformer（2）；
The current transformer gas chamber（2）For accommodating current transformer（CT）, both ends are separately connected neutral point inlet wire set
Cylinder（1）With earthing switch blade gas chamber（3）；
The earthing switch blade gas chamber（3）For accommodating earthing switch blade（ES）, both ends are separately connected current transformer gas chamber（2）
With arrester gas chamber（4）；
The arrester gas chamber（4）For accommodating arrester（LA）, both ends are separately connected earthing switch blade gas chamber（3）The ground and
Face.
3. the closed high-pressure sides 72.5kV neutral point complexes as claimed in claim 2, which is characterized in that the ground connection
Plug-in strip gas chamber（3）Height be less than 800mm.
4. the closed high-pressure sides 72.5kV neutral point complexes as claimed in claim 2, which is characterized in that described is lightning-arrest
Device gas chamber（4）Height be less than 1000mm.
5. the closed high-pressure sides the 72.5kV neutral point complexes as described in any one of claim 1-4, feature exist
In earthing switch blade（ES）And arrester（LA）Grounded screen is connected to by grounding copper bar respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618291.6U CN207664599U (en) | 2017-11-28 | 2017-11-28 | A kind of closed high-pressure sides 72.5kV neutral point complexes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618291.6U CN207664599U (en) | 2017-11-28 | 2017-11-28 | A kind of closed high-pressure sides 72.5kV neutral point complexes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664599U true CN207664599U (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721618291.6U Active CN207664599U (en) | 2017-11-28 | 2017-11-28 | A kind of closed high-pressure sides 72.5kV neutral point complexes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834510A (en) * | 2017-11-28 | 2018-03-23 | 国网上海市电力公司 | A kind of closed 72.5kV high-pressure sides neutral point complexes |
-
2017
- 2017-11-28 CN CN201721618291.6U patent/CN207664599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834510A (en) * | 2017-11-28 | 2018-03-23 | 国网上海市电力公司 | A kind of closed 72.5kV high-pressure sides neutral point complexes |
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