CN106950401A - Direct current cables test terminal device - Google Patents
Direct current cables test terminal device Download PDFInfo
- Publication number
- CN106950401A CN106950401A CN201710364067.7A CN201710364067A CN106950401A CN 106950401 A CN106950401 A CN 106950401A CN 201710364067 A CN201710364067 A CN 201710364067A CN 106950401 A CN106950401 A CN 106950401A
- Authority
- CN
- China
- Prior art keywords
- stress control
- direct current
- current cables
- insulating sleeve
- extension layer
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000003137 locomotive effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Insulating Bodies (AREA)
Abstract
Direct current cables test terminal device, is related to direct current cables attachment technique research field, the problem of in order to solve expensive existing cable test terminal, poor repeatable Utilization ability, poor practicability.Direct current cables axially penetrates through insulating sleeve, two flanges are fixed at the two ends of insulating sleeve, sealed between flange and direct current cables using seal, form sealed chamber, extension layer and the outer skeleton of Stress Control are in insulating sleeve in Stress Control, and be both secured on the flange of insulating sleeve one end, extension layer is closely surrounded on direct current cables in Stress Control, and the outer skeleton of Stress Control is closely surrounded in Stress Control on extension layer.The present invention is applied to high voltage direct current cable experiment.
Description
Technical field
The present invention relates to direct current cables attachment technique research field.
Background technology
Today's society is to electrical energy demands sustainable growth so that high pressure, super-pressure even extra-high voltage direct-current cable transfer electric energy
More and more urgent, high voltage dc transmission technology is increasingly taken seriously.To grinding for the accessories apparatus in HVDC transmission system
It is an important topic to study carefully.The terminal installation tested for high-voltage alternating cable can not directly carry out high voltage direct current cable experiment；
Prefabricated cable test terminal device one side preparation technology is complicated, expensive, and on the other hand repeatable Utilization ability is poor.It is right
In possess to a certain degree repeat Utilization ability, for high voltage direct current cable test terminal system in 500kV voltages or thunder and lightning
Under pulse voltage effect, electric-field intensity distortion is serious at semiconductive shielding layer stripping, causes the destruction to terminal system.For height
In 500kV high voltage direct current cables experiment, it is still necessary to explore it is cheap, using the flexible and repeatable terminal system utilized.
The content of the invention
The present invention in order to solve that existing cable test terminal is expensive, repeatable Utilization ability is poor, poor practicability ask
Topic, so as to provide direct current cables test terminal device.
Direct current cables test terminal device of the present invention, including extension layer, stress control in insulating sleeve, Stress Control
The outer skeleton of system, two flanges, two seals；
Direct current cables axially penetrates through insulating sleeve, and two flanges are fixed at the two ends of insulating sleeve, flange and direct current cables it
Between using seal sealing, form sealed chamber, in Stress Control extension layer and the outer skeleton of Stress Control in insulating sleeve, and
On the flange for being both secured to insulating sleeve one end, extension layer is closely surrounded on direct current cables in Stress Control, Stress Control dermoskeleton
Frame is closely surrounded in Stress Control on extension layer.
Preferably, extension layer is full skirt shape in Stress Control, and the main body of full skirt shape is covered in the outer skeleton of Stress Control
On inwall, the edge of full skirt shape is bent outwardly and is covered in the outer edge of the outer skeleton of Stress Control.
Preferably, extension layer and seal are fixed on flange by root fixings in the Stress Control.
Preferably, also including lumbar mount, lumbar mount is located at extension layer waist in Stress Control, and waist is fixed
Part is used to extension layer in Stress Control being fixed on the outer skeleton of control.
Preferably, dielectric is full of in insulating sleeve, dielectric is SF or silicone oil.
Preferably, extension layer is semi-conductive silicone rubber layer in Stress Control.
Preferably, also including two grading shields；Two grading shields are respectively outside the two ends of insulating sleeve, and fixed
On flange.
Preferably, also including device for regulating rotary, support frame, locomotive and retainer ring；
Device for regulating rotary is used for the gradient for adjusting insulating sleeve；
Fixing shrink ring is fixed on support frame on the outer wall of insulating sleeve on insulating sleeve by retainer ring, support frame
On locomotive.
Preferably, the outer skeleton of Stress Control is aluminum frame.
Compared with prior art, the invention has the advantages that：
1. the outer skeleton of Stress Control can form the stable support to extension layer in Stress Control so that the present apparatus is being installed
During stability it is stronger, electric field stress control effect more stablize.
2. according to the direct current cables size for carrying out HVDC TEST, extension layer in the Stress Control of different inner diameters is selected,
So that the application of high voltage direct current cable test terminal is significantly increased.
3. it is applied to extension layer in the Stress Control of different cable dimensions inside insulating sleeve so that high voltage direct current cable is tried
Testing terminal replaceability significantly strengthens.
4th, device of the invention is repeatable utilizes, and material is cheap, with being easily installed, debugging, operates flexible feature.
Brief description of the drawings
Fig. 1 is the axial sectional view of direct current cables test terminal device.
Fig. 2 is the structural representation that the structural separation in insulating sleeve is opened；
Fig. 3 is the dimensional structure diagram of direct current cables test terminal device；
Fig. 4 is a kind of structural representation of extension layer in Stress Control of size；
Fig. 5 is the structural representation of extension layer in the Stress Control of another size.
Embodiment
Embodiment one：Present embodiment, the direct current described in present embodiment are illustrated referring to figs. 1 to Fig. 5
Cable test terminal device include insulating sleeve 1, the outer skeleton 3 of extension layer 2, Stress Control in Stress Control, two flanges 4, two
Seal 5；
Direct current cables 7 axially penetrates through insulating sleeve 1, and two flanges 4, flange 4 and direct current are fixed in the two ends of insulating sleeve 1
Sealed between cable 7 using seal 5, form extension layer 2 and the outer skeleton 3 of Stress Control in sealed chamber, Stress Control and insulating
In sleeve 1, and it is both secured on the flange 4 of the one end of insulating sleeve 1, extension layer 2 closely surrounds direct current cables 7 in Stress Control
On, the outer skeleton 3 of Stress Control is closely surrounded in Stress Control on extension layer 2.
Extension layer has different dimensional thickness in Stress Control, goes for different size high voltage direct current cables experiments and surveys
Examination.Flange is close to be used to close insulating sleeve 1 together with seal.
In present embodiment, extension layer 2 is full skirt shape in Stress Control, and the main body of full skirt shape is covered in Stress Control dermoskeleton
On the inwall of frame 3, the edge of full skirt shape is bent outwardly and is covered in the outer edge of the outer skeleton 3 of Stress Control.
The two is worked in coordination, and forms the stress wimble structure being similar to inside prefabricated high voltage direct current cable test terminal.
In present embodiment, extension layer 2 and seal 5 are fixed on flange 4 by root fixings 6 in Stress Control
On.
In present embodiment, also including lumbar mount 8, lumbar mount 8 is positioned at extension layer 2 in Stress Control in
At portion, lumbar mount 8 is used to extension layer in Stress Control 2 being fixed on the outer skeleton 3 of control.
Extension layer in the Stress Control of suitable direct current cables size is assembled to outside Stress Control on skeleton, engagement process note
Extension layer and fixed stress control the lumbar mount and root fixings of outer skeleton in meaning alignment Stress Control.Lumbar mount
8 make the fixation of extension layer in Stress Control more stablize.
In present embodiment, dielectric is full of in insulating sleeve 1, dielectric is SF4Or silicone oil.
Insulating sleeve 1 is provided with hand-hole and steam vent, and dielectric is injected by hand-hole.
In present embodiment, extension layer 2 is semi-conductive silicone rubber layer in Stress Control.
Semi-conductive silicone rubber semiconductive and non-swelling in silicone oil.
In present embodiment, also including two grading shields 9；Two grading shields 9 are respectively outside the two ends of insulating sleeve 1
Portion, and be fixed on flange 4.
In present embodiment, also including device for regulating rotary 10, support frame 11, locomotive 12 and retainer ring 13；
Device for regulating rotary 10 is used for the gradient for adjusting insulating sleeve 1；
Retainer ring 13 is enclosed within the outer wall of insulating sleeve 1, and support frame 11 is fixed on by retainer ring 13 on insulating sleeve 1
On, support frame 11 is on locomotive 12.
In present embodiment, the outer skeleton 3 of Stress Control is aluminum frame.
The outer skeleton of Stress Control is used to support extension layer in the softer Stress Control of material, and branch can not only be played using aluminum frame
The effect of support, and it is light.
During installation, skeleton outside Stress Control 3 is fixed on flange 4 by root fixings 6 first.
Then, according to extension layer in the size selection Stress Control of cable under test, in Stress Control extension layer be semiconductive,
The non-swelling silicon rubber material in silicone oil.Skeleton outside extension layer in Stress Control and Stress Control is coordinated and installed, and by answering
Power controls the lumbar mount 8 of outer skeleton waist to fix extension layer in Stress Control.For various sizes of high voltage direct current
Cable is tested, and can select extension layer in the Stress Control of different inner diameters size.
Next, flange to be arranged on to the two ends of insulating sleeve.It is equipped with and contains and stress on the flange of insulating sleeve one end
The seal that extension layer coordinates in control.Root fixings are housed with the sealing device that extension layer in Stress Control coordinates, are used for
The base portion of extension layer in fixed stress control so that direct current cables insertion direct current cables test terminal internal procedure is more stablized.
According to the length of high-voltage direct-current cable terminal and the structure determination direct current cables major insulation of Stress Control intramedullary expansion layer
Peel off position and the stripping position of semiconductive external shielding layer.Need to be cut according to experiment.Outer semiconducting layer end is polished
It is sloping, it is seamlessly transitted with major insulation, and do not allow to remain with tool marks or exploitation vestige on semiconductive slope, its surface should
It is smooth, it is not allow for pit or step.Uniformly smear silicone grease in cable surface, through grading shield by insertion direct current cables
Inside test terminal, and sealed by the seal at two ends, the grading shield at direct current cables test terminal two ends is finally installed.
Dielectric is injected into direct current cables test terminal finally by the hand-hole on insulating sleeve and steam vent
Portion, and close hand-hole and steam vent.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. direct current cables test terminal device, it is characterised in that including extension layer (2) in insulating sleeve (1), Stress Control, should
Power controls outer skeleton (3), two flanges (4), two seals (5)；
Direct current cables (7) axially penetrates through insulating sleeve (1), and two flanges (4) are fixed at the two ends of insulating sleeve (1), flange (4) with
Sealed between direct current cables (7) using seal (5), form sealed chamber, in Stress Control outside extension layer (2) and Stress Control
Skeleton (3) is both secured on the flange (4) of insulating sleeve (1) one end, extension layer in Stress Control in insulating sleeve (1)
(2) closely surround on direct current cables (7), the outer skeleton (3) of Stress Control is closely surrounded on extension layer in Stress Control (2).
2. direct current cables test terminal device according to claim 1, it is characterised in that extension layer in the Stress Control
(2) it is full skirt shape, the main body of full skirt shape is covered on the inwall of the outer skeleton (3) of Stress Control, and the edge of full skirt shape is bent outwardly
And it is covered in the outer edge of the outer skeleton (3) of Stress Control.
3. direct current cables test terminal device according to claim 1, it is characterised in that extension layer in the Stress Control
(2) it is fixed on seal (5) by root fixings (6) on flange (4).
4. direct current cables test terminal device according to claim 1, it is characterised in that also including lumbar mount (8),
Lumbar mount (8) is located at extension layer (2) waist in Stress Control, and lumbar mount (8) is used for extension layer in Stress Control
(2) it is fixed on the outer skeleton (3) of control.
5. direct current cables test terminal device according to claim 1, it is characterised in that filled in the insulating sleeve (1)
Full dielectric, dielectric is SF4Or silicone oil.
6. direct current cables test terminal device according to claim 1, it is characterised in that extension layer in the Stress Control
(2) it is semi-conductive silicone rubber layer.
7. direct current cables test terminal device according to claim 4, it is characterised in that also including two grading shields (9)；
Two grading shields (9) are respectively outside the two ends of insulating sleeve (1), and be fixed on flange (4).
8. the direct current cables test terminal device according to claim 1,4 or 7, it is characterised in that also including rotating regulation
Device (10), support frame (11), locomotive (12) and retainer ring (13)；
Device for regulating rotary (10) is used for the gradient for adjusting insulating sleeve (1)；
Retainer ring (13) is enclosed within the outer wall of insulating sleeve (1), and support frame is fixed on by retainer ring (13) on insulating sleeve (1)
(11) on, support frame (11) is on locomotive (12).
9. direct current cables test terminal device according to claim 1, it is characterised in that the outer skeleton of the Stress Control
(3) it is aluminum frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364067.7A CN106950401A (en) | 2017-05-22 | 2017-05-22 | Direct current cables test terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364067.7A CN106950401A (en) | 2017-05-22 | 2017-05-22 | Direct current cables test terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106950401A true CN106950401A (en) | 2017-07-14 |
Family
ID=59479905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710364067.7A Pending CN106950401A (en) | 2017-05-22 | 2017-05-22 | Direct current cables test terminal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106950401A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169622A (en) * | 2017-12-18 | 2018-06-15 | 中国电力科学研究院有限公司 | Direct current cables test terminal |
| CN110031731A (en) * | 2019-04-10 | 2019-07-19 | 上海交通大学 | Puncture test macro and method for cables with extruded insulation direct current |
| CN110531231A (en) * | 2019-09-12 | 2019-12-03 | 南京地中缆科技有限公司 | A kind of alternating current-direct current cable voltage test terminal installation |
-
2017
- 2017-05-22 CN CN201710364067.7A patent/CN106950401A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169622A (en) * | 2017-12-18 | 2018-06-15 | 中国电力科学研究院有限公司 | Direct current cables test terminal |
| CN110031731A (en) * | 2019-04-10 | 2019-07-19 | 上海交通大学 | Puncture test macro and method for cables with extruded insulation direct current |
| CN110031731B (en) * | 2019-04-10 | 2021-06-11 | 上海交通大学 | System and method for testing direct current breakdown of extruded insulated cable |
| CN110531231A (en) * | 2019-09-12 | 2019-12-03 | 南京地中缆科技有限公司 | A kind of alternating current-direct current cable voltage test terminal installation |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170714 |