CN203965578U - A kind of for coaxial configuration solid insulation partial discharge test terminal - Google Patents
A kind of for coaxial configuration solid insulation partial discharge test terminal Download PDFInfo
- Publication number
- CN203965578U CN203965578U CN201420517067.8U CN201420517067U CN203965578U CN 203965578 U CN203965578 U CN 203965578U CN 201420517067 U CN201420517067 U CN 201420517067U CN 203965578 U CN203965578 U CN 203965578U
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- coaxial configuration
- configuration solid
- solid insulation
- insulation
- partial discharge
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- 238000009413 insulation Methods 0.000 title claims abstract description 97
- 239000007787 solid Substances 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 22
- 230000005684 electric field Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 9
- 235000010210 aluminium Nutrition 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses and a kind ofly for coaxial configuration solid insulation partial discharge test terminal, comprise the insulating sleeve that is built-in with liquid insulating medium, in insulating sleeve, be provided with coaxial configuration solid insulation structure; Coaxial configuration solid insulation structure comprises that outside is coated with the conductor thread core of insulation course, insulation course outside is coated with insulation screen and copper shield successively, the end, two ends of insulation screen and copper shield is coated with electric field stress and controls band, one end of coaxial configuration solid insulation structure is arranged in the liquid insulating medium of insulating sleeve, and the conductor thread core of this end of coaxial configuration solid insulation structure is connected with base by screw, and base and insulating sleeve lower end are tightly connected; The other end of coaxial configuration solid insulation structure is in air.The utility model can be realized the Partial Discharge Detection for assessment of insulation status, has advantages of that technique is simple, Production Time is short and cost is low simultaneously.
Description
Technical field
The utility model relates to a kind of midium voltage cable partial discharge test apparatus, relates in particular to a kind of for coaxial configuration solid insulation partial discharge test terminal.
Background technology
At present, along with as more deep in the electric property research of cable insulation to coaxial configuration solid insulation, for assessment of the Partial Discharge Detection of insulation status, become an important detection means.For coaxial configuration solid insulation, be sandwich construction, apply after voltage Electric Field Distribution complicated, the electric field distortion therefore being caused by hierarchy is by the effect affecting in normal insulation Partial Discharge Detection.Meanwhile, in laboratory, collect the interference that coaxial configuration solid insulation defect shelf depreciation information also needs to get rid of other parts outside fault location.And existing partial discharge test terminal all cannot meet the demands.
Utility model content
The purpose of this utility model is to provide and a kind ofly for coaxial configuration solid insulation partial discharge test terminal, can realizes the Partial Discharge Detection for assessment of insulation status, has advantages of that technique is simple, Production Time is short and cost is low simultaneously.
The utility model adopts following technical proposals:
For a coaxial configuration solid insulation partial discharge test terminal, comprise the insulating sleeve that is built-in with liquid insulating medium, in insulating sleeve, be provided with coaxial configuration solid insulation structure; Coaxial configuration solid insulation structure comprises that outside is coated with the conductor thread core of insulation course, insulation course outside is coated with insulation screen and copper shield successively, the end, two ends of insulation screen and copper shield is coated with electric field stress and controls band, one end of coaxial configuration solid insulation structure is arranged in the liquid insulating medium of insulating sleeve, and the conductor thread core of this end of coaxial configuration solid insulation structure is connected with base by screw, and base and insulating sleeve lower end are tightly connected; The other end of coaxial configuration solid insulation structure is in air.
The termination of copper shield is extended forward in the termination of described insulation screen, and electric field stress control band envelopes the termination of insulation screen and the termination of copper shield.
The termination of described insulation screen and insulation course outside surface are provided with chamfering.
Described base edge employing semi-circular structure can efficient balance internal field.
The length that described electric field stress is controlled band is 45mm-50mm, and it is 8mm-10mm with the length of the contact site of copper shield that electric field stress is controlled band, and it is 20mm-25mm with the length of the contact site of insulation course that electric field stress is controlled band.
Be arranged in one end of the coaxial configuration solid insulation structure of insulating sleeve liquid insulating medium, its conductor thread core extends forward insulation course termination and the length that is exposed in liquid insulating medium is 5mm-7mm.
The termination 20mm of copper shield is extended forward in the termination of described insulation screen.
Described insulating sleeve adopts organic glass cylinder, and the height of insulating sleeve is 240mm-250mm.
Described liquid insulating medium adopts insulating oil.
Described screw and base adopt aluminum all to press screw and aluminum base.
The utility model is positioned over coaxial configuration solid insulation structure in the insulating sleeve that is contained with liquid insulating medium, coaxial configuration solid insulation structure comprises that outside is coated with the conductor thread core of insulation course, insulation course outside is coated with insulation screen and copper shield successively, the end, two ends of insulation screen and copper shield is coated with electric field stress and controls band, one end of coaxial configuration solid insulation structure, one end conductor thread core that is arranged in the coaxial configuration solid insulation structure of liquid insulating medium connects base by screw, the other end of coaxial configuration solid insulation structure is in air, as defect, making region can prefabricated various artificial defect.The utility model is not subject to the restriction of solid insulation size when carrying out partial discharge test, and convenience quick for installation, has improved test efficiency, gets rid of disturbing factor, has improved the accuracy of partial discharge test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, described in the utility modelly for coaxial configuration solid insulation partial discharge test terminal, comprise the insulating sleeve 1 that is built-in with liquid insulating medium 7, in insulating sleeve 1, be provided with coaxial configuration solid insulation structure; Coaxial configuration solid insulation structure comprises that outside is coated with the conductor thread core 3 of insulation course 2, insulation course 2 outsides are coated with insulation screen 4 and copper shield 5 successively, the end, two ends of insulation screen 4 and copper shield 5 is coated with electric field stress control and is with 6, one end of coaxial configuration solid insulation structure is arranged in the liquid insulating medium 7 of insulating sleeve 1, and the conductor thread core 3 of this end of coaxial configuration solid insulation structure is connected with base 9 by screw 8, and base 9 is tightly connected with insulating sleeve 1 lower end; The other end of coaxial configuration solid insulation structure is in air, and as defect, making region 10 can prefabricated various artificial defect.
In the utility model, the termination 20mm of copper shield 5 is extended forward in the termination of insulation screen 4, and electric field stress control envelopes the termination of insulation screen 4 and the termination of copper shield 5 with 6, and the termination of insulation screen 4 and insulation course 2 outside surfaces are provided with the chamfering 11 seamlessly transitting.The length that electric field stress is controlled with 6 is 45mm-50mm, electric field stress control with 6 with the length of the contact site of copper shield 5 be 8mm-10mm, electric field stress control with 6 with the length of the contact site of insulation course 2 be 20mm-25mm.One end of coaxial configuration solid insulation structure in the interior liquid insulating medium 7 of insulating sleeve 1, its conductor thread core 3 extends forward insulation course 2 terminations and the length that is exposed in liquid insulating medium 7 is 5mm-7mm.Insulating sleeve 1 adopts organic glass cylinder, and the height of insulating sleeve 1 is 240mm-250mm, and the liquid insulating medium 7 in insulating sleeve 1 adopts insulating oil.Base that insulating sleeve 1 lower end is tightly connected 9 edges adopt the semi-circular structure can efficient balance internal field, and screw 8 and base 9 adopt aluminums all to press screw and aluminum base, and surface uniform is smooth.
While using the utility model to carry out partial discharge test, by copper shield 5 ground connection, screw 8 is connect to noble potential, guarantee that coaxial configuration solid insulation structure fixes in insulating sleeve 1, by external partial discharging detection device, can detect the local discharge signal that defect is made 10 places, region, different structure defect obtains different shelf depreciation statistical informations.The utility model has following characteristics when carrying out partial discharge test: (1) is not subject to the restriction of solid insulation size, and convenience quick for installation can improve test efficiency; (2) get rid of the disturbing factors such as corona, sliding sudden strain of a muscle, improved the accuracy of partial discharge test; (3) divide defect and make region, can be used for the compartment analysis of different insulative defect shelf depreciation information; (4) coaxial solid insulation structured material used is few, saves testing expenses.
Claims (10)
1. for a coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: comprise the insulating sleeve that is built-in with liquid insulating medium, in insulating sleeve, be provided with coaxial configuration solid insulation structure; Coaxial configuration solid insulation structure comprises that outside is coated with the conductor thread core of insulation course, insulation course outside is coated with insulation screen and copper shield successively, the end, two ends of insulation screen and copper shield is coated with electric field stress and controls band, one end of coaxial configuration solid insulation structure is arranged in the liquid insulating medium of insulating sleeve, and the conductor thread core of this end of coaxial configuration solid insulation structure is connected with base by screw, and base and insulating sleeve lower end are tightly connected; The other end of coaxial configuration solid insulation structure is in air.
2. according to claim 1 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: the termination of copper shield is extended forward in the termination of described insulation screen, and electric field stress control band envelopes the termination of insulation screen and the termination of copper shield.
3. according to claim 2 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: the termination of described insulation screen and insulation course outside surface are provided with chamfering.
4. according to claim 3 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: described base edge employing semi-circular structure can efficient balance internal field.
5. according to claim 4 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: the length that described electric field stress is controlled band is 45mm-50mm, it is 8mm-10mm with the length of the contact site of copper shield that electric field stress is controlled band, and it is 20mm-25mm with the length of the contact site of insulation course that electric field stress is controlled band.
6. according to claim 5 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: be arranged in one end of the coaxial configuration solid insulation structure of insulating sleeve liquid insulating medium, its conductor thread core extends forward insulation course termination and the length that is exposed in liquid insulating medium is 5mm-7mm.
7. according to claim 6 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: the termination 20mm of copper shield is extended forward in the termination of described insulation screen.
8. according to claim 7 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: described insulating sleeve adopts organic glass cylinder, and the height of insulating sleeve is 240mm-250mm.
9. according to claim 8 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: described liquid insulating medium adopts insulating oil.
10. according to claim 9 for coaxial configuration solid insulation partial discharge test terminal, it is characterized in that: described screw and base adopt aluminum all to press screw and aluminum base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517067.8U CN203965578U (en) | 2014-09-10 | 2014-09-10 | A kind of for coaxial configuration solid insulation partial discharge test terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517067.8U CN203965578U (en) | 2014-09-10 | 2014-09-10 | A kind of for coaxial configuration solid insulation partial discharge test terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965578U true CN203965578U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420517067.8U Active CN203965578U (en) | 2014-09-10 | 2014-09-10 | A kind of for coaxial configuration solid insulation partial discharge test terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203965578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841953A (en) * | 2017-03-29 | 2017-06-13 | 国家电网公司 | Cable accessory partial discharge test terminal for measuring Embedded defect |
-
2014
- 2014-09-10 CN CN201420517067.8U patent/CN203965578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841953A (en) * | 2017-03-29 | 2017-06-13 | 国家电网公司 | Cable accessory partial discharge test terminal for measuring Embedded defect |
| CN106841953B (en) * | 2017-03-29 | 2019-10-25 | 国家电网公司 | For measuring the cable accessory partial discharge test terminal of Embedded defect |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |