CN207234369U - One kind ± 500kV direct current cables outdoor terminals - Google Patents
One kind ± 500kV direct current cables outdoor terminals Download PDFInfo
- Publication number
- CN207234369U CN207234369U CN201721309493.2U CN201721309493U CN207234369U CN 207234369 U CN207234369 U CN 207234369U CN 201721309493 U CN201721309493 U CN 201721309493U CN 207234369 U CN207234369 U CN 207234369U
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- Prior art keywords
- stress cone
- cover
- cone
- direct current
- bottom plate
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- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 229910052573 porcelain Inorganic materials 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010931 gold Substances 0.000 claims description 10
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 7
- 229920002943 EPDM rubber Polymers 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 5
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 125000002619 bicyclic group Chemical group 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000005611 electricity Effects 0.000 description 5
- 238000002788 crimping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model discloses one kind ± 500kV direct current cables outdoor terminals, including binding post, head cover, insulating sleeve, stress cone cover, stress cone, cone support, bottom plate and tail pipe；Head cover and bottom plate seal the two-port for being fixed on insulating sleeve respectively, and cable, which axially penetrates through, to be arranged in insulating sleeve, and binding post is crimped with the core of cable one end and is fixedly connected with head cover, and tail pipe is bolted on the lower end of stress cone cover；Stress cone cover is arranged in insulating sleeve and is fixedly connected with bottom plate, stress cone is sleeved on the cable inside insulating sleeve, stress cone is assemblied in the inner cavity of stress cone cover by the conical surface of mutual wedge sum, and cone support is arranged between stress cone and bottom plate, will mutually be held out against between stress cone and stress cone cover；Insulating compound is filled with the seal cavity of insulating sleeve.The outdoor terminal of the utility model can adapt to super-pressure grade flexible DC power transmission use, can in DC power transmission line wide popularization and application.
Description
Technical field
The utility model belongs to cable accessory, and in particular to one kind ± 500kV direct current cables outdoor terminals.
Background technology
In recent years, as international community is surging to the cry of environmental protection requirement, various countries are to regenerative resource, clean energy resource
Exploitation also becomes the hot spot of power exploi-tation.Coastal waters wind-powered electricity generation, Li Island wind-powered electricity generation and solar power generation will become east China and southern edge
The power exploi-tation direction in sea, and these energy developments are because taking off farther out, and must be conveyed with extra large cable, using high voltage direct current extra large cable
Transmission of electricity will be best-of-breed technology selection, and not only transmission capacity is 2 times of ac cable to high voltage direct current cable, but also electric energy loss of transmitting electricity
Only the 40% of ac cable, its transmission distance lengthen significantly, and D.C. high voltage transmission cost has been effectively controlled, and is more easy to
In ensureing the stabilization of power grids, there is practical significance for quality, stability and the reliability for improving electric power.
In DC power transmission line, outdoor terminal is as the transition connection portion part between direct current cables and ground connection, at present
The conveying voltage of the direct current power of mainstream is ± 160kV, ± 200kV, the DC power transmission line of ± 320kV, ± 500kV belong to super
HVDC transmission line, it is stringenter for outdoor terminal requirement, it is above-mentioned normal due to the voltage rise between high-pressure and low-pressure pole
Direct current cables outdoor terminal on rule voltage circuit is applied more holds breakdown, ring outdoors on ± 500kV DC power transmission lines
The failures such as high electric-field intensity, Leakage Current are caused under border.
Utility model content
The utility model solve technical problem be：Cannot for the outdoor terminal of existing conventional voltage DC power transmission line
A kind of the shortcomings that enough meeting super high voltage direct current electricity transmission line requirement, there is provided new ± 500kV direct current cables outdoor terminals.
The utility model adopts the following technical solution realizes：
One kind ± 500kV direct current cables outdoor terminals, it is characterised in that：Including binding post 3, head cover 4, insulating sleeve,
Stress cone cover 8, stress cone 9, cone support 10, bottom plate 11 and tail pipe 12；
The head cover 4 and bottom plate 11 seal the two-port for being fixed on insulating sleeve respectively, and cable, which axially penetrates through, to be arranged on absolutely
In edge casing, the binding post 3 is crimped with the core of cable one end and is fixedly connected with head cover 4；
The stress cone cover 8 is arranged in insulating sleeve, and is fixedly connected with bottom plate 11, and the stress cone 9 is sleeved on absolutely
On the cable of edge inside pipe casing, the stress cone 9 is assemblied in the inner cavity of stress cone cover 8, the cone by the conical surface of mutual wedge sum
Support 10 is arranged between stress cone 9 and bottom plate 11, will mutually be held out against between stress cone and stress cone cover；
The tail pipe 12 is bolted on the lower end of stress cone cover 8；
Insulating compound is filled with the seal cavity surrounded between the head cover 4, bottom plate 11, stress cone cover 8 and insulating sleeve
7。
As a kind of preferred solution of the utility model, the insulating sleeve is porcelain bushing shell, the porcelain bushing shell be it is tapered, outside
Wall is equipped with the umbrella skirt construction that size is alternately arranged.
As another preferred solution of the utility model, the insulating sleeve is silicone rubber material or glass fiber impregnated
The composite bushing of epoxy resin, the composite bushing are straight barrel type, and outer wall is equipped with the umbrella skirt construction that size is alternately arranged.
In one kind ± 500kV direct current cables outdoor terminals of the utility model, the stress cone 9 uses Nano filling
Modified EPT elastomeric material, the stress cone cover 8 use epoxide resin material.
Further, fixing sleeve is equipped with shading ring 1 on the binding post 3, and is locked by outlet gold utensil 2.
Further, the shading ring 1 is bicyclic shading ring, and the shielding space of shading ring is by binding post 3 and outlet gold utensil 2
Circumferential masking.
Further, the periphery of the bottom plate 11 is uniformly installed with support insulator 13.
Further, the cone support 10 is similarly cone match using spring compression cone support between cone support and stress cone.
In one kind ± 500kV direct current cables outdoor terminals of the utility model, the insulating compound 7 is silicone oil.
The utility model provides the outdoor terminal of two kinds of materials of porcelain bushing shell and composite bushing, can be according to different outdoor environments
Selected.Stress cone in the utility model is core component, using nano-filler modified ethylene propylene diene rubber insulating materials,
Improve the performance of ethylene propylene diene rubber by nano modified material, the generation of space charge can be suppressed, efficiently solve absolutely
The accumulation problem of edge medium interface space charge, effectively improves the electric field distribution of cable incision position, realizes outdoor terminal
Application in ± 500kV direct current conveying circuits.
From the above mentioned, the utility model is a kind of flexible DC power transmission outdoor terminal that can adapt to super-pressure grade,
Particularly it is used for ± 500kV direct current cables the outdoor terminals of standard, can be in direct current transportation such as the marine power supply in city, city net capacity-increasing transformations
Wide popularization and application in circuit.
The utility model is further described below in conjunction with the drawings and specific embodiments.
Brief description of the drawings
Fig. 1 is the ± 500kV direct current cables outdoor terminal sectional views that porcelain bushing shell is used in embodiment one.
Fig. 2 is the ± 500kV direct current cables outdoor terminal sectional views that composite bushing is used in embodiment two.
Figure label：1- shading rings, 2- outlets gold utensil, 3- binding posts, 4- head covers, 5- cables, 6- porcelain bushing shells, 6 '-compound
Casing, 7- insulating compounds, 8- stress cones cover, 9- stress cones, 10- cones support, 11- bottom plates, 12- tail pipes, 13- support insulators.
Embodiment
Embodiment one
Referring to Fig. 1, it is illustrated that in one kind ± 500kV direct current cables with a kind of preferred side that outdoor terminal is the utility model
Case, specifically include shading ring 1, outlet gold utensil 2, binding post 3, head cover 4, porcelain bushing shell 6, insulating compound 7, stress cone cover 8, stress cone 9,
Bore support 10, bottom plate 11, tail pipe 12 and support insulator 13.Wherein head cover 4, bottom plate 11 and porcelain bushing shell 6 form the whole of outdoor terminal
Body case, is the top of outdoor terminal in one end of head cover 4, which is provided with outlet gold utensil 2, binding post 3 and shading ring 1, bottom plate
11 one end is the bottom of outdoor terminal, which is provided with stress cone cover 8 and support insulator 13 with cable socket, binding post 3
Aperture and the core outside diameter of cable 5 it is supporting, it be clearance fit when being sleeved on 5 core of cable to ensure binding post 3, and using pressing
Mode is connect to carry out crimping fixation with cable core.
The present embodiment uses insulating sleeve of the porcelain bushing shell 6 as outdoor terminal, and porcelain bushing shell 6 is using high-strength electroporcelain material one
Shaping, shape are tapered, are equipped with umbrella skirt construction in the outer wall of porcelain bushing shell 6, umbrella skirt construction is handed over using big ring full skirt and small ring full skirt
The arrangement replaced.The two-port of porcelain bushing shell 6 passes through 11 pressurizing window of head cover 4 and bottom plate respectively.Head cover 4 and bottom plate 11 can pass through
The flange terminal pad of flange connection and porcelain bushing shell both ends fixing bolt is fixed, and is respectively equipped with head cover 4 and bottom plate 11 logical
Hole, the wherein core of 5 one end of cable are fixed with binding post 3 and are crimped, and binding post 3 is fixedly connected by pressing sleeve with head cover 4, head cover 4,
Flange position between binding post 3 and porcelain bushing shell 6 is sealed by O-ring seal, between stress cone cover 8 and porcelain bushing shell 6
Flange position is sealed again by O-ring seal, and the bottom plate 11 of terminal bottom is propped up by six support insulators 13
Support is fixed, and cable 5 is fixed inside porcelain bushing shell 6 by stress cone cover 8, stress cone 9, cone support 10, wherein, stress cone cover 8 is set
In insulating sleeve, it has a circular cone inner cavity, and stress cone cover 8 is fixedly connected with bottom plate 11, head cover 4, bottom plate 11, stress cone
A seal cavity for being used to fill insulating compound is surrounded between cover 8 and insulating sleeve.Stress cone 9 is sleeved on inside porcelain bushing shell 6
On cable, the upper semisection of stress cone 9 is to be assembled with 8 matched cone of stress cone cover, stress cone 9 by the conical surface of mutual wedge sum
In the interior intracavitary of stress cone cover 8, cone support 10 is arranged between stress cone 9 and bottom plate 11, and the present embodiment is held in the palm using spring compression cone,
Stress cone 9 is held out against on the inner cavity conical surface of stress cone cover 8 by elastic force.
The lower half of stress cone 9 is similarly cone, which matches with cone support 10, can make cone by Cone fit
It is more reliably axial between support and stress cone, stress cone and stress cone cover to hold out against.
The stress cone 9 of the present embodiment uses nano-filler modified ethylene propylene diene monomer (EPDM) material, and internal orifice dimension insulate according to cable 5
Outside diameter is supporting, is interference fit when proof stress cone 9 is sleeved in the insulation of cable 5.Stress cone cover 8 uses epoxide resin material.
Silicone oil conduct is filled with the seal cavity surrounded between head cover 4, bottom plate 11, stress cone cover 8 and insulating sleeve
Insulating compound 7, in order to prevent silicone oil reveal, the present embodiment is between binding post 3 and head cover 4, between head cover 4 and porcelain bushing shell 6, stress
Between cone cover 8 and bottom plate 11, it is each equipped with O-ring seal between bottom plate 11 and porcelain bushing shell 6 and is sealed, stress cone cover 8 and should
The conical surface compressed between power cone 9 can ensure the sealing effect to silicone oil.
Six groups of support insulators 13 are fixed at the periphery of bottom plate 11 using circumferential equally distributed mode, for family
Outer terminal forms secure support and fixes.
Tail pipe 12 is bolted on bottom plate 11, to forming sealing protection between outdoor terminal bottom and cable, and
One ground connection leading point is provided on tail pipe 12.
The aperture of binding post 3 and the core outside diameter of cable 5 are supporting, ensure between being when binding post 3 is sleeved on 5 core of cable
Gap coordinates, and carries out crimping fixation using crimping mode.Shading ring 1 is set with binding post 3, shading ring 1 is using double-deck
Circular ring structure, 3 top outlet gold utensil 2 of binding post fix, and outlet gold utensil 2 is fastened with binding post 3 by bolt lock
Fixed, the shielding space of shading ring circumferentially covers binding post 3 and outlet gold utensil 2.
Embodiment two
Referring to Fig. 2, it is illustrated that in outdoor terminal be the utility model another preferred solution, its structure and embodiment one
Identical, difference is：The present embodiment is made using the composite bushing 6 ' of silicone rubber material or glass fiber impregnated epoxy resin
For the insulating sleeve of outdoor terminal, composite bushing 6 ' is straight barrel type, and outer wall is equipped with the umbrella skirt construction that size is alternately arranged.
It these are only that case explanation is embodied in the utility model, it is impossible to the rights protection model of the utility model is limited with this
Enclose.All equivalence changes made according to present utility model application claims and description and modification, all in this practicality
In novel protected scope.
Above example is the explanation to the utility model, not to the restriction of the utility model, the technology people of the industry
Member it should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe
The concrete operating principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model can also
There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention, and the utility model will
Protection domain is asked to be defined by the appending claims and its equivalent thereof.
Claims (9)
1. one kind ± 500kV direct current cables outdoor terminals, it is characterised in that：Including binding post (3), head cover (4), insulation sleeve
Pipe, stress cone cover (8), stress cone (9), cone support (10), bottom plate (11) and tail pipe (12)；
The head cover (4) and bottom plate (11) seal the two-port for being fixed on insulating sleeve respectively, and cable, which axially penetrates through, to be arranged on absolutely
In edge casing, the binding post (3) crimps with the core of cable one end and is fixedly connected with head cover (4)；
The stress cone cover (8) is arranged in insulating sleeve, and is fixedly connected with bottom plate (11), and the stress cone (9) is sleeved on
On cable inside insulating sleeve, the stress cone (9) is assemblied in the inner cavity of stress cone cover (8) by the conical surface of mutual wedge sum,
The cone support (10) is arranged between stress cone (9) and bottom plate (11), will mutually be held out against between stress cone and stress cone cover；
The tail pipe (12) is bolted on the lower end of stress cone cover (8)；
Insulation is filled with the seal cavity that the head cover (4), bottom plate (11), stress cone cover (8) surround between insulating sleeve
Agent (7).
2. one kind ± 500kV direct current cables outdoor terminals according to claim 1, the insulating sleeve is porcelain bushing shell,
The porcelain bushing shell is tapered, and outer wall is equipped with the umbrella skirt construction that size is alternately arranged.
3. one kind ± 500kV direct current cables outdoor terminals according to claim 1, the insulating sleeve is silicon rubber material
The composite bushing of matter or glass fiber impregnated epoxy resin, the composite bushing are straight barrel type, and outer wall is alternately arranged equipped with size
Umbrella skirt construction.
4. one kind ± 500kV direct current cables outdoor terminals according to Claims 2 or 3, the stress cone (9) uses and receives
The filler modified ethylene propylene diene monomer (EPDM) material of rice, the stress cone cover (8) use epoxide resin material.
5. one kind ± 500kV direct current cables outdoor terminals according to claim 4, fixing sleeve on the binding post (3)
It is locked equipped with shading ring (1), and by outlet gold utensil (2).
6. one kind ± 500kV direct current cables outdoor terminals according to claim 5, the shading ring (1) is bicyclic screen
Ring is covered, the shielding space of shading ring circumferentially covers binding post (3) and outlet gold utensil (2).
7. one kind ± 500kV direct current cables outdoor terminals according to claim 6, the periphery of the bottom plate (11) is uniform
It is installed with support insulator (13).
8. one kind ± 500kV direct current cables outdoor terminals according to claim 1, the cone support (10) uses spring pressure
Tight cone support, cone match is similarly between cone support and stress cone.
9. one kind ± 500kV direct current cables outdoor terminals according to claim 1, the insulating compound (7) is silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309493.2U CN207234369U (en) | 2017-10-11 | 2017-10-11 | One kind ± 500kV direct current cables outdoor terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309493.2U CN207234369U (en) | 2017-10-11 | 2017-10-11 | One kind ± 500kV direct current cables outdoor terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234369U true CN207234369U (en) | 2018-04-13 |
Family
ID=61851430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721309493.2U Active CN207234369U (en) | 2017-10-11 | 2017-10-11 | One kind ± 500kV direct current cables outdoor terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207234369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728529A (en) * | 2018-12-29 | 2019-05-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Complete indoor direct current terminal station |
-
2017
- 2017-10-11 CN CN201721309493.2U patent/CN207234369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728529A (en) * | 2018-12-29 | 2019-05-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Complete indoor direct current terminal station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 410000 No. 223, tongzipo West Road, Lugu Industrial Park, high tech Development Zone, Changsha, Hunan Patentee after: Long Cable Technology Group Co.,Ltd. Country or region after: China Address before: No. 223 Tongzipo West Road, Lugu Industrial Park, High tech Zone, Changsha City, Hunan Province, 410205 Patentee before: CHANGLAN CABLE ACCESSORIES Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |