CN202172009U - Shielding device for contact box type current transformer - Google Patents
Shielding device for contact box type current transformer Download PDFInfo
- Publication number
- CN202172009U CN202172009U CN2011202874717U CN201120287471U CN202172009U CN 202172009 U CN202172009 U CN 202172009U CN 2011202874717 U CN2011202874717 U CN 2011202874717U CN 201120287471 U CN201120287471 U CN 201120287471U CN 202172009 U CN202172009 U CN 202172009U
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- CN
- China
- Prior art keywords
- ring
- current transformer
- shielding structure
- fixed
- low pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The technical scheme of the utility model provides a shielding device for a contact box type current transformer. The shielding device comprises a high voltage shielding structure and a low voltage shielding structure, wherein the high voltage shielding structure is fixed on a static contact of the contact box type current transformer, the low voltage shielding structure is fixed on a secondary coil support of the contact box type current transformer, and the low voltage shielding structure is grounded. The shielding device is characterized in that the altitude difference delta H between the high voltage shielding structure and the low voltage shielding structure is 35-45 mm, the height of the high voltage shielding structure H1 is 90-100 mm, and the height of the low voltage shielding structure H2 is 35-45 mm. The shielding device for t contact box type current transformer solves the problem that the static contact of the contact box type current transformer discharges so as to improve the performance of the current transformer and reduce the local discharging.
Description
Technical field
The utility model relates to a kind of screening arrangement that is used for contact boxlike current transformer.
Background technology
High-tension switch cabinet is used for electric power system generating, transmission of electricity, distribution, electric energy conversion and consumes, and it plays effects such as break-make, control or protection.Current transformer is electric elements commonly used in the high-tension switch cabinet.And contact boxlike current transformer is meant that an end of a high-pressure side is the contact box form.Can produce the discharge problem around the fixed contact of existing contact boxlike current transformer, reduce the performance of current transformer, improve office and put.
Summary of the invention
The purpose of the utility model provides the screening arrangement of the problem of discharging around a kind of fixed contact that solves contact boxlike current transformer.
In order to achieve the above object; The technical scheme of the utility model has provided a kind of contact boxlike current transformer screening arrangement; Comprise high-tension shielding structure and low pressure shielding construction, the high-tension shielding structure is fixed on the fixed contact of contact boxlike current transformer, and the low pressure shielding construction is fixed on the secondary coil support of contact boxlike current transformer; The low pressure shielding construction links to each other with ground; It is characterized in that: the difference in height △ H=35～45mm between high-tension shielding structure and the low pressure shielding construction, the height H 1=90 of high-tension shielding structure～100mm, the height H 2=35 of low pressure shielding construction～45mm.
Preferably; Said high-tension shielding structure comprises retainer ring and the circle copper ring that is positioned at top and below; Between retainer ring and circle copper ring, be fixed with at least five first vertical copper rods; The two ends up and down of the first cylindric copper mesh are separately fixed on retainer ring and the circle copper ring, on the circle copper ring, are fixed with a circular spiral body, and the distance between retainer ring and the circle copper ring is the height H 1 of said high-tension shielding structure.
Preferably; Said low pressure shielding construction comprises ring, on ring, is provided with at least five second vertical copper rods, and the second cylindric copper mesh covers the surface of ring and fixes with ring; On second copper rod and the second cylindric copper mesh, be fixed with the epoxy fixed block; Fixedly an end and the ring of iron wire fix, and the other end is provided with nut, and the height of ring is the height H 2 of said low pressure shielding construction.
A kind of screening arrangement that the utility model provides has solved discharge problem around the fixed contact of contact boxlike current transformer, has improved the performance of current transformer, has reduced office and has put.
Description of drawings
A kind of contact boxlike current transformer screening arrangement general structure sketch map that Fig. 1 provides for the utility model;
Fig. 2 A is the vertical view of high-tension shielding structure;
Fig. 2 B is the side sectional view of high-tension shielding structure;
Fig. 3 A is the vertical view of low pressure shielding construction;
Fig. 3 B is the side sectional view of low pressure shielding construction.
Embodiment
For making the utility model more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
As shown in Figure 1; A kind of contact boxlike current transformer screening arrangement that the utility model provides comprises high-tension shielding structure 1 and low pressure shielding construction 2, high-tension shielding structure 1 is fixed on the fixed contact of contact boxlike current transformer; Adjust distance; Low pressure shielding construction 2 is being fixed on the secondary coil support of contact boxlike current transformer, and low pressure shielding construction 2 links to each other with ground, the difference in height △ H=35～45mm between high-tension shielding structure 1 and the low pressure shielding construction 2; In the present embodiment, difference in height △ H is taken as 40mm
Shown in Fig. 2 A and Fig. 2 B, high-tension shielding structure 1 comprises retainer ring 1-4 and the circle copper ring 1-1 that is positioned at top and below, many first vertical copper rod 1-2 of welding between retainer ring 1-4 and circle copper ring 1-1.The copper mesh that to cut out again is rolled into the first cylindric copper mesh 1-3 on wooden roller; With the two ends up and down of the first cylindric copper mesh 1-3 respectively flanging be welded on retainer ring 1-4 and the circle copper ring 1-1; Welding one circular spiral body 1-5 on circle copper ring 1-1; Distance between retainer ring 1-4 and the circle copper ring 1-1 is height H 1=90～100mm of said high-tension shielding structure 1, and in the present embodiment, height H 1 is taken as 95mm.
Shown in Fig. 3 A and Fig. 3 B; Low pressure shielding construction 2 comprises ring 2-3; Many second vertical copper rod 2-5 of welding on ring 2-3; The second cylindric copper mesh 2-4 covers the surface of ring 2-3 and fixes with ring 2-3 welding, on the second copper rod 2-5 and the second cylindric copper mesh 2-4, is fixed with epoxy fixed block 2-6.Fixedly during epoxy fixed block 2-6; With mixture of epoxy resins epoxy fixed block 2-6 is bonded on the second copper rod 2-5 and the second cylindric copper mesh 2-4 earlier; After air-heater blows two minutes initial solidifications again, be put into baking curing in about 10 hours in 120 ℃～130 ℃ baking ovens.Fixedly the end of iron wire 2-2 fixes with ring 2-3, and the other end is provided with nut 2-1, and the height of ring 2-3 is height H 2=35～45mm of low pressure shielding construction 2, and in the present embodiment, height H 2 is taken as 40mm.
Claims (3)
1. contact boxlike current transformer screening arrangement; Comprise high-tension shielding structure (1) and low pressure shielding construction (2); High-tension shielding structure (1) is fixed on the fixed contact of contact boxlike current transformer; Low pressure shielding construction (2) is fixed on the secondary coil support of contact boxlike current transformer, and low pressure shielding construction (2) links to each other with ground, it is characterized in that: the difference in height △ H=35～45mm between high-tension shielding structure (1) and the low pressure shielding construction (2); Height H 1=90～the 100mm of high-tension shielding structure (1), the height H 2=35～45mm of low pressure shielding construction (2).
2. a kind of contact boxlike current transformer screening arrangement as claimed in claim 1; It is characterized in that: said high-tension shielding structure (1) comprises retainer ring (1-4) and the circle copper ring (1-1) that is positioned at top and below; Between retainer ring (1-4) and circle copper ring (1-1), be fixed with at least five vertical first copper rods (1-2); The two ends up and down of the first cylindric copper mesh (1-3) are separately fixed on retainer ring (1-4) and the circle copper ring (1-1); On circle copper ring (1-1), be fixed with a circular spiral body (1-5), the distance between retainer ring (1-4) and the circle copper ring (1-1) is the height H 1 of said high-tension shielding structure (1).
3. a kind of contact boxlike current transformer screening arrangement as claimed in claim 1; It is characterized in that: said low pressure shielding construction (2) comprises ring (2-3); On ring (2-3), be provided with at least five vertical second copper rods (2-5); The second cylindric copper mesh (2-4) covers the surface of ring (2-3) and fixes with ring (2-3), on second copper rod (2-5) and the second cylindric copper mesh (2-4), is fixed with epoxy fixed block (2-6), and fixedly an end of iron wire (2-2) and ring (2-3) fix; The other end is provided with nut (2-1), and the height of ring (2-3) is the height H 2 of said low pressure shielding construction (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202874717U CN202172009U (en) | 2011-08-09 | 2011-08-09 | Shielding device for contact box type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202874717U CN202172009U (en) | 2011-08-09 | 2011-08-09 | Shielding device for contact box type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172009U true CN202172009U (en) | 2012-03-21 |
Family
ID=45830199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202874717U Withdrawn - After Issue CN202172009U (en) | 2011-08-09 | 2011-08-09 | Shielding device for contact box type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172009U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360894A (en) * | 2011-08-09 | 2012-02-22 | 正泰电气股份有限公司 | Shielding device for contact box type current transformer |
| CN107799290A (en) * | 2017-12-04 | 2018-03-13 | 大连北方互感器集团有限公司 | Voltage transformer low pressure screening arrangement and preparation method thereof |
-
2011
- 2011-08-09 CN CN2011202874717U patent/CN202172009U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360894A (en) * | 2011-08-09 | 2012-02-22 | 正泰电气股份有限公司 | Shielding device for contact box type current transformer |
| CN107799290A (en) * | 2017-12-04 | 2018-03-13 | 大连北方互感器集团有限公司 | Voltage transformer low pressure screening arrangement and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120321 Effective date of abandoning: 20130619 |
|
| RGAV | Abandon patent right to avoid regrant |