CN204287260U - Existing during Partial Discharge Test for Transformer double ring type shielding cap - Google Patents
Existing during Partial Discharge Test for Transformer double ring type shielding cap Download PDFInfo
- Publication number
- CN204287260U CN204287260U CN201420709863.1U CN201420709863U CN204287260U CN 204287260 U CN204287260 U CN 204287260U CN 201420709863 U CN201420709863 U CN 201420709863U CN 204287260 U CN204287260 U CN 204287260U
- Authority
- CN
- China
- Prior art keywords
- ring
- aluminum pipe
- connection aluminum
- shielding cap
- partial discharge
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of double ring type shielding cap, particularly relates to a kind of Existing during Partial Discharge Test for Transformer double ring type shielding cap.Comprise sleeve, the upper end of described sleeve outer wall is provided with upwards equally distributed upper connection aluminum pipe, the top of described upper connection aluminum pipe is connected by main ring, the lower end of described sleeve outer wall is provided with downward equally distributed lower connection aluminum pipe, the bottom of described lower connection aluminum pipe is connected by secondary ring, the top of described sleeve is provided with top board, equipotential binding post is provided with in described top board, described equipotential binding post is connected with equipotential link bare copper wire, the ring footpath of described main ring xsect be greater than secondary ring xsect ring footpath, temperature sensor is provided with in described sleeve.Existing during Partial Discharge Test for Transformer double ring type shielding cap compact conformation, all presses effect outstanding, increases work efficiency.
Description
Technical field
The utility model relates to a kind of double ring type shielding cap, particularly relates to a kind of Existing during Partial Discharge Test for Transformer double ring type shielding cap.
Background technology
In Existing during Partial Discharge Test for Transformer process, because cannula tip exists wedge angle, the uneven distribution of Analysis of End Electric Field can be caused, cause point effect that corona and the electric discharge phenomena of crack in Pi occur, have a strong impact on carrying out and the measuring accuracy of test, existing shielding cap is tub structure, this structure is only applicable to 110kV and following electric pressure, in 330kV grade Existing during Partial Discharge Test for Transformer process, to the uneven field intensity caused by the voltage that shielding high pressure line end is responded to, the radius-of-curvature of so used shield assembly needs enough large, excessive radius-of-curvature will certainly make all to press the volume and weight of shield assembly excessive, installation and removal can be very difficult.Excessive cylindrical probably makes the distance between high pressure line end be less than minimum safe distance, thus the office making line end produce non-test product puts, and even punctures, and has a strong impact on test effect and experimental safe.
Utility model content
The utility model mainly solves the deficiencies in the prior art, and provide a kind of compact conformation, quality is little, easy for installation, and applicable electric pressure is higher, and structure is attractive in appearance, all presses the Existing during Partial Discharge Test for Transformer double ring type shielding cap of better effects if.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals:
A kind of Existing during Partial Discharge Test for Transformer double ring type shielding cap, comprise sleeve, the upper end of described sleeve outer wall is provided with upwards equally distributed upper connection aluminum pipe, the top of described upper connection aluminum pipe is connected by main ring, the lower end of described sleeve outer wall is provided with downward equally distributed lower connection aluminum pipe, the bottom of described lower connection aluminum pipe is connected by secondary ring, the top of described sleeve is provided with top board, equipotential binding post is provided with in described top board, described equipotential binding post is connected with equipotential link bare copper wire, the ring footpath of described main ring xsect be greater than secondary ring xsect ring footpath, temperature sensor is provided with in described sleeve.
As preferably, the thickness of described top board is 4mm, and the material thickness of described sleeve outer wall, upper connection aluminum pipe, lower connection aluminum pipe is respectively 2mm, is provided with preformed hole in described top board.
This equipment adopts aluminum alloy materials, and entirety carries out seamless welding, to sanding burr polishing, easy for installation, and shielding all presses effect very good.Employing bare copper wire carries out grading ring and terminal binding post carries out equipotential link, greatly strengthens the reliability of equipment.
The radius-of-curvature footpath design checking of this equipment grading ring meets the product testing requirement of 550kV electric pressure, and without audible external discharge in 330kV product testing process, corona sound is little and stable, has good experimental performance.
Employing bare copper wire carries out grading ring and terminal binding post carries out equipotential link, greatly strengthens the reliability of equipment.
In sleeve, increase temperature sensor, effectively can monitor the temperature of sleeve, the ruuning situation of facilities for observation.
Therefore, Existing during Partial Discharge Test for Transformer double ring type shielding cap of the present utility model, compact conformation, all presses effect outstanding, increases work efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional structure schematic diagram of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, a kind of Existing during Partial Discharge Test for Transformer double ring type shielding cap, comprise sleeve 1, the upper end of described sleeve 1 outer wall is provided with upwards equally distributed upper connection aluminum pipe 2, the top of described upper connection aluminum pipe 2 is connected by main ring 3, the lower end of described sleeve 1 outer wall is provided with downward equally distributed lower connection aluminum pipe 4, the bottom of described lower connection aluminum pipe 4 is connected by secondary ring 5, the top of described sleeve 1 is provided with top board 6, equipotential binding post 7 is provided with in described top board 6, described equipotential binding post 7 is connected with equipotential link bare copper wire 8, the ring footpath of described main ring 3 xsect be greater than secondary ring 5 xsect ring footpath, temperature sensor 9 is provided with in described sleeve 1.
The thickness of described top board 6 is 4mm, and the material thickness of described sleeve 1 outer wall, upper connection aluminum pipe 2, lower connection aluminum pipe 4 is respectively 2mm, is provided with preformed hole 10 in described top board 6.
Claims (2)
1. an Existing during Partial Discharge Test for Transformer double ring type shielding cap, it is characterized in that: comprise sleeve (1), the upper end of described sleeve (1) outer wall is provided with upwards equally distributed upper connection aluminum pipe (2), the top of described upper connection aluminum pipe (2) is connected by main ring (3), the lower end of described sleeve (1) outer wall is provided with downward equally distributed lower connection aluminum pipe (4), the bottom of described lower connection aluminum pipe (4) is connected by secondary ring (5), the top of described sleeve (1) is provided with top board (6), equipotential binding post (7) is provided with in described top board (6), described equipotential binding post (7) is connected with equipotential link bare copper wire (8), the ring footpath of described main ring (3) xsect be greater than secondary ring (5) xsect ring footpath, temperature sensor (9) is provided with in described sleeve (1).
2. Existing during Partial Discharge Test for Transformer double ring type shielding cap according to claim 1, it is characterized in that: the thickness of described top board (6) is 4mm, the material thickness of described sleeve (1) outer wall, upper connection aluminum pipe (2), lower connection aluminum pipe (4) is respectively 2mm, is provided with preformed hole (10) in described top board (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709863.1U CN204287260U (en) | 2014-11-24 | 2014-11-24 | Existing during Partial Discharge Test for Transformer double ring type shielding cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709863.1U CN204287260U (en) | 2014-11-24 | 2014-11-24 | Existing during Partial Discharge Test for Transformer double ring type shielding cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204287260U true CN204287260U (en) | 2015-04-22 |
Family
ID=52870409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709863.1U Expired - Fee Related CN204287260U (en) | 2014-11-24 | 2014-11-24 | Existing during Partial Discharge Test for Transformer double ring type shielding cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204287260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291273A (en) * | 2016-07-26 | 2017-01-04 | 中国电力科学研究院 | All pressures radome device of ± 2400kV DC voltage generator and corona free test method |
-
2014
- 2014-11-24 CN CN201420709863.1U patent/CN204287260U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291273A (en) * | 2016-07-26 | 2017-01-04 | 中国电力科学研究院 | All pressures radome device of ± 2400kV DC voltage generator and corona free test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20191124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |