CN206400020U - High voltage direct current cable dry type easily-testing terminal - Google Patents
High voltage direct current cable dry type easily-testing terminal Download PDFInfo
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- CN206400020U CN206400020U CN201621322950.7U CN201621322950U CN206400020U CN 206400020 U CN206400020 U CN 206400020U CN 201621322950 U CN201621322950 U CN 201621322950U CN 206400020 U CN206400020 U CN 206400020U
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- direct current
- connecting rod
- high voltage
- voltage direct
- dry type
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- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Testing Relating To Insulation (AREA)
- Cable Accessories (AREA)
Abstract
High voltage direct current cable dry type easily-testing terminal, is related to high voltage direct current cable system test field.At present, the experimental study of complexity can not be carried out using the dumb terminal of cable delivery test, if installing actual track terminal needs not only to need professional install but also need higher cost.The technical program includes test sleeve pipe, DC stress cone and spring, testing sleeve pipe includes insulating coating, the high-tension shielding electrode sleeve of middle and upper part, the fixed connecting rod located at high-tension shielding electrode sleeve center in insulating coating, insulating part is provided between insulating coating, high-tension shielding electrode sleeve and fixed connecting rod, lower insulating member center in insulating coating is provided with the jatharapanvartanasana cavity of lower ending opening, and the top and bottom of test sleeve pipe are respectively equipped with upper flange and lower flange.The technical program need not be vacuumized, inflated or oiling, simplified terminal structure, reduced the set-up time, and simple to operate, energy-conserving and environment-protective, so as to improve operating efficiency, can also be reused, and reduce experimentation cost.
Description
Technical field
The utility model is related to high voltage direct current cable system test field, more particularly to a kind of high voltage direct current cable dry type
Easily-testing terminal.
Background technology
With the rise of the generations of electricity by new energy such as wind energy, solar energy, limitation of the modern city to aerial transmission of electricity corridor is added, it is soft
Property HVDC Transmission Technology also increasingly attract attention, in addition the progress of Chinese flexible direct current commutation technique and direct current cables technology and
The successful research and development of product, China's high pressure flexible direct current transmission of electricity demonstration project construction since 2012.What south electric network was built
Nan ' ao Island ± 160kV multiterminal flexible direct currents engineering puts into operation in December, 2013.Zhoushan ± 200kV the multiterminal that national grid is built
Engineering puts into operation in June, 2014.Xiamen DC engineering also puts into operation in December, 2015.And direct current cables circuit and cable accessory
As the part that direct current cables transmission line of electricity is essential, the quality of its performance directly affects the fortune of whole direct current transmission and distribution system
Row reliability.Direct current cables system is product out newly developed recent years, both at home and abroad ununified measuring means pair
The electric property of direct current cables system is estimated, and most enterprises voluntarily carry out exfactory inspection before cable dispatches from the factory.For direct current
Cable product, dispatch from the factory it is previous as simple cable terminal can be installed directly on product and tested, such a method is simulation
The actual running situation of finished product, is only applicable the exfactory inspection with routine, if can not meet requirement for some complicated experiments.
Before being dispatched from the factory for cable accessory products, it is typically mounted at the device for specializing in experiment or is tested on simulation annex.This device
Or simulation annex provides the electrode needed for experiment, the electric-field intensity on subject prefabricated component is reached not less than finished cable annex
In its electric-field intensity under providing test voltage.If the terminal-pair cable system developed using cable accessory factory carries out complicated
Experiment, not only increases the R＆D cycle but also increases experimentation cost.It can not be carried out according to the dumb terminal of cable delivery test
Complicated experimental study, if installing actual track terminal needs not only to need professional install but also need higher cost.
Therefore, it is necessary to develop a set of brief test terminal for meeting above-mentioned experiment demand.
Utility model content
The technical problems to be solved in the utility model and propose technical assignment be to prior art carry out improve with
Improve there is provided high voltage direct current cable dry type easily-testing terminal, to realize that a series of research under the conditions of dry run are tried
For the purpose of testing.Therefore, the utility model takes following technical scheme.
High voltage direct current cable dry type easily-testing terminal, including test sleeve pipe, DC stress cone and spring, described survey
Trying sleeve pipe includes insulating coating, located at the high-tension shielding electrode sleeve of middle and upper part in insulating coating, in high-tension shielding electrode sleeve
Insulating part is provided between the fixed connecting rod of the heart, described insulating coating, high-tension shielding electrode sleeve and fixed connecting rod, it is described
Lower insulating member center in insulating coating is provided with the jatharapanvartanasana cavity of lower ending opening, and the top and bottom of test sleeve pipe are set respectively
There are dismountable upper flange and lower flange；The lower end of described fixed connecting rod, which is electrically connected with, is detachably connected bar, detachably connects
The lower end of extension bar is used to be connected with the core of tested direct current cables end, and described DC stress cone and spring are used to be coated at directly
Flow the fixing bolt for being provided with around the end of cable, described lower flange centre bore and being used for holding out against spring.In use, will be tested straight
Stream cable insulation is simply polished, and is inserted in after DC stress cone, will be detachably connected bar and fixed with cable core, be inserted into survey
Try in sleeve pipe, the bar that is detachably connected being connected with direct current cables core is electrically connected with fixed connecting rod, finally installs spring, and lead to
Fixing bolt is crossed by spring-compressed to meet requirement, test voltage is introduced at the fixed connecting rod on test terminal top, can be real
Now effective corresponding test or correlative study is carried out to direct current cables system to test.
As further improving and supplementing to above-mentioned technical proposal, it is special that the utility model also includes following supplementary technology
Levy.
The centre bore of upper flange is stretched out in the upper end of described fixed connecting rod, and fixed connecting rod be located at upper flange with
On position provided with connecting hole axially vertical with it.It is easy to connecting wire, facilitates the introduction of test voltage.
The bottom of described fixed connecting rod, which is provided with, to be used to connect the blind hole for being detachably connected bar.It is easy to inscribed detachable
Connecting rod.
The blind hole of described fixed connecting rod is electrically connected with being detachably connected between bar by watchband-shaped contactor.Watchband-shaped contactor
Electric connection mode is reliable and stable.
It is integrally connected, and is fixedly connected by insulating part between fixed connecting rod and upper flange and high-tension shielding electrode sleeve
It is to electrically connect between bar and upper flange and high-tension shielding electrode sleeve.Integrally connected, without dismounting during work, electrical connection is easy to survey
Voltage-drop loading is tried to high-tension shielding electrode sleeve.
Described being detachably connected between bar and the core of tested direct current cables is electrically connected by bolt.Due to being tested direct current
Cable end needs frequent plug, and uncoupling phenomenon easily occurs in generic connectivity, is electrically connected by bolt simple and convenient, firmly may be used
Lean on.
The lower end position of described high-tension shielding electrode sleeve is less than the lower end for being detachably connected bar.High-tension shielding electrode sleeve compared with
It is long, it is therefore an objective to can to shield and there is air-gap between fixed connecting rod, this partial air gap, will not shadow due to being shielded
Ring the electric property of test terminal.
Insulating coating is stretched out in the lower end of described insulating part, and described lower flange is coated at outside insulating part.It is easy to lower flange
It is fixed on insulating part.
Described insulating coating is rubber full skirt；Described insulating part is epoxy resin.Rubber full skirt increases creep age distance,
Tune climbs that effect is good, the probability of happening of the failure such as reduction electric leakage, electric discharge；Epoxy resin is easy to the manufacture of the techniques such as injection, is conveniently used for
It is molded between gap.
Beneficial effect：The easily-testing terminal not only has the electric property of conventional products terminal, with existing test terminal
Compare, without vacuumizing, inflating or oiling, simplify terminal structure, reduce the set-up time, simple to operate, energy-conserving and environment-protective,
It so as to improve operating efficiency, can also reuse, reduce experimentation cost.
Brief description of the drawings
Fig. 1 is the utility model cross-sectional view.
Fig. 2 is the utility model test sleeve pipe cross-sectional view.
In figure：1- tests sleeve pipe；2- is detachably connected bar；3- direct current cables；4- DC stress is bored；5- springs；6- is fixed
Bolt；101- fixed connecting rods；102- upper flanges；103- high-tension shielding electrode sleeves；104- rubber-covered full skirts；105- epoxies portion
Part；106- lower flanges；107- jatharapanvartanasana cavitys；108- connecting holes；109- blind holes.
Embodiment
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figure 1-2, high voltage direct current cable dry type easily-testing terminal, including test sleeve pipe 1, DC stress cone 4
With spring 5, the described high-tension shielding electrode for testing the middle and upper part including insulating coating 104, in insulating coating 104 of sleeve pipe 1
Set 103, the fixed connecting rod 101 located at the center of high-tension shielding electrode sleeve 103, described insulating coating 104, high-tension shielding electrode
The center of lower insulating member 105 in insulating part 105, described insulating coating 104 is provided between set 103 and fixed connecting rod 101
Jatharapanvartanasana cavity 107 provided with lower ending opening, the top and bottom of test sleeve pipe 1 are respectively equipped with dismountable He of upper flange 102
Lower flange 106；The lower end of described fixed connecting rod 101, which is electrically connected with, is detachably connected bar 2, is detachably connected the lower end of bar 2
It is connected for the core with the tested end of direct current cables 3, described DC stress cone 4 and spring 5 are used to be coated at direct current cables 3
End, the fixing bolt 6 for being used for holding out against spring 5 is provided with around the described centre bore of lower flange 106.
The centre bore of upper flange 102 is stretched out in connecting wire for convenience, the upper end of described fixed connecting rod 101, and
And fixed connecting rod 101 is located at the position of upper flange more than 102 provided with a connecting hole 108 axially vertical with it.It is easy to connect
Wire is connect, test voltage is facilitated the introduction of.
For the ease of electrical connection, the bottom of described fixed connecting rod 101, which is provided with to be used to connect, is detachably connected bar 2
Blind hole 109.It is easy to be inscribed and is detachably connected bar 2.
In order to preferably realize electrical connection, the blind hole 109 of described fixed connecting rod 101 and it is detachably connected between bar 2
Electrically connected by watchband-shaped contactor.The electric connection mode of watchband-shaped contactor is reliable and stable.
For the ease of safeguarding and simplifying structure, fixed connecting rod 101 and upper flange 102 and high-tension shielding electrode sleeve 103 it
Between be integrally connected by insulating part 105, and be between fixed connecting rod 101 and upper flange 102 and high-tension shielding electrode sleeve 103
Electrical connection.Integrally connected, without dismounting during work, electrical connection is easy in test voltage loading to high-tension shielding electrode sleeve 103,
Connected without other wire, simplify structure.
In order that tested direct current cables 3 and being detachably connected bar 2 and can firmly realize and electrically connect, described detachably connects
Electrically connected between extension bar 2 and the core of tested direct current cables 3 by bolt.Because the tested end of direct current cables 3 needs often to insert
Pull out, uncoupling phenomenon easily occurs in generic connectivity, electrically connected by bolt it is simple and convenient, it is solid and reliable.
In order to not influence the electric property for testing terminal, the lower end position of described high-tension shielding electrode sleeve 103 is less than can
Dismantle the lower end of connecting rod 2.High-tension shielding electrode sleeve 103 is longer, it is therefore an objective to can shield and exist between fixed connecting rod 101
Air-gap, this partial air gap will not affect that the electric property of test terminal due to being shielded.
Fixed for the ease of installing, insulating coating 104, described lower flange 106 are stretched out in the lower end of described insulating part 105
It is coated at outside insulating part 105.It is easy to lower flange 106 to be fixed on insulating part 105.
In order to lift electric property, obtain preferably insulation and tune and climb effect, described insulating coating 104 is rubber umbrella
Skirt；Described insulating part 105 is epoxy resin.Rubber full skirt increases creep age distance, and tune climbs effect is good, and reduction is leaked electricity, discharged etc.
The probability of happening of failure；Epoxy resin is easy to the manufacture of the techniques such as injection, is conveniently used for shaping between gap.
In use, the tested insulating barrier of direct current cables 3 is simply polished, it is inserted in after DC stress cone 4, bar will be detachably connected
2 fix with cable core, are inserted into test sleeve pipe 1, and what is be connected with the core of direct current cables 3 is detachably connected bar 2 with fixing
Connecting rod 101 is electrically connected, and finally installs spring 5, and is compressed spring 5 by fixing bolt 6 to meet requirement, from test terminal
Test voltage is introduced at the fixed connecting rod 101 on top, can be achieved to carry out corresponding test effectively or phase to the system of direct current cables 3
Close investigation test.
High voltage direct current cable dry type easily-testing terminal shown in figure 1 above -2 is specific implementation of the present utility model
Example, has embodied the utility model substantive distinguishing features and progress, can be opened according to actual use needs of the present utility model
Under showing, carry out the equivalent modifications in terms of shape, structure to it, this programme protection domain row.
Claims (10)
1. high voltage direct current cable dry type easily-testing terminal, it is characterised in that：Including test sleeve pipe（1）, DC stress cone
（4）And spring（5）, described test sleeve pipe（1）Including insulating coating（104）, located at insulating coating（104）The height of interior middle and upper part
Press bucking electrode set（103）, located at high-tension shielding electrode sleeve（103）The fixed connecting rod at center（101）, described insulating coating
（104）, high-tension shielding electrode sleeve（103）And fixed connecting rod（101）Between be provided with insulating part（105）, described insulating coating
（104）Interior lower insulating member（105）Center is provided with the jatharapanvartanasana cavity of lower ending opening（107）, test sleeve pipe（1）Upper end connect
It is connected to upper flange（102）, lower end be provided with dismountable lower flange（106）；Described fixed connecting rod（101）Lower end electrical connection
It is detachably connected bar（2）, it is detachably connected bar（2）Lower end be used for and tested direct current cables（3）The core connection of end, institute
The DC stress cone stated（4）And spring（5）For being coated at direct current cables（3）End, described lower flange（106）Centre bore
Surrounding, which is provided with, to be used to hold out against spring（5）Fixing bolt（6）.
2. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Described fixation
Connecting rod（101）Upper end stretch out upper flange（102）Centre bore, and fixed connecting rod（101）Positioned at upper flange（102）
Position above is provided with a connecting hole axially vertical with it（108）.
3. high voltage direct current cable dry type easily-testing terminal according to claim 2, it is characterised in that：Described fixation
Connecting rod（101）Bottom provided with being detachably connected bar for connection（2）Blind hole（109）.
4. high voltage direct current cable dry type easily-testing terminal according to claim 3, it is characterised in that：Described fixation
Connecting rod（101）Blind hole（109）With being detachably connected bar（2）Between electrically connected by watchband-shaped contactor.
5. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Fixed connecting rod
（101）With upper flange（102）And high-tension shielding electrode sleeve（103）Between pass through insulating part（105）It is integrally connected, and fixed company
Extension bar（101）With upper flange（102）And high-tension shielding electrode sleeve（103）Between for electrical connection.
6. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Described is removable
Unload connecting rod（2）With tested direct current cables（3）Core between electrically connected by bolt.
7. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Described high pressure
Bucking electrode set（103）Lower end position less than being detachably connected bar（2）Lower end.
8. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Described insulation
Part（105）Lower end stretch out insulating coating（104）, described lower flange（106）Be coated at insulating part（105）Outside.
9. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Described revolution
Shape cavity（107）Provided with inside gradient, jatharapanvartanasana cavity（107）Top gradient be more than middle and lower part.
10. high voltage direct current cable dry type easily-testing terminal according to claim 1, it is characterised in that：Described is exhausted
Edge overcoat（104）For rubber full skirt；Described insulating part（105）For epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322950.7U CN206400020U (en) | 2016-12-05 | 2016-12-05 | High voltage direct current cable dry type easily-testing terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322950.7U CN206400020U (en) | 2016-12-05 | 2016-12-05 | High voltage direct current cable dry type easily-testing terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206400020U true CN206400020U (en) | 2017-08-11 |
Family
ID=59510239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621322950.7U Active CN206400020U (en) | 2016-12-05 | 2016-12-05 | High voltage direct current cable dry type easily-testing terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206400020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469579A (en) * | 2018-05-04 | 2018-08-31 | 扬州森源电力科技有限公司 | Switchgear male-tapered casing high pressure tests terminal |
-
2016
- 2016-12-05 CN CN201621322950.7U patent/CN206400020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469579A (en) * | 2018-05-04 | 2018-08-31 | 扬州森源电力科技有限公司 | Switchgear male-tapered casing high pressure tests terminal |
| CN108469579B (en) * | 2018-05-04 | 2024-04-30 | 扬州森源电力科技有限公司 | High-voltage testing terminal for external conical sleeve of switch cabinet |
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