CN209044008U - A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device - Google Patents
A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device Download PDFInfo
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- CN209044008U CN209044008U CN201821428357.XU CN201821428357U CN209044008U CN 209044008 U CN209044008 U CN 209044008U CN 201821428357 U CN201821428357 U CN 201821428357U CN 209044008 U CN209044008 U CN 209044008U
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Abstract
The utility model discloses a kind of high-voltage cable insulating connectors of built-in very high frequency(VHF) partial discharge sensing device; it include: the very high frequency(VHF) partial discharge sensing device that can be adapted to fastening with the first protective case and the second protective case respectively and be linked together, very high frequency(VHF) partial discharge sensing device includes: dead ring；It is placed in the very high frequency(VHF) partial discharge sensor being linked together inside dead ring with dead ring, the binding post of very high frequency(VHF) partial discharge sensor is emerging in the outside of dead ring；And dead ring can be fastened on respectively to the clamping position on assembly connection end together with binding post；The adapter component being installed on the second protective shell.Implement the high-voltage cable insulating connector of the built-in very high frequency(VHF) partial discharge sensing device of the utility model, being able to solve very high frequency(VHF) Partial discharge signal long range propagation attenuation causes can't detect, and leads to not the problem of finding high-voltage cable insulating internal defect of joint in time；Structure arrangement is more compact, is conducive to maintenance, maintenance and control cost.
Description
Technical field
The utility model relates to appliances field more particularly to a kind of high-voltage electricity of built-in very high frequency(VHF) partial discharge sensing device
Cable insulating joint.
Background technique
In the prior art, shelf depreciation parameter is one of the important indicator of high-voltage cable insulating joint health.
When carrying out partial discharge detection using very high frequency(VHF) method, since very high frequency(VHF) Partial discharge signal is weaker, signal propagation attenuation is with distance
Increase and dramatically increases, meanwhile, Partial discharge signal inside high-voltage cable insulating connector issues from inside and reaches exterior space, need to wear
It crosses same net shielded layer and insulating materials, signal strength is weakened；In addition, when high-voltage cable insulating connector is laid in channel,
It is protected using back-up sand plus protective cover plate, therefore, to be detected outside actual cable run high-voltage cable insulating connector small
Very high frequency(VHF) Partial discharge signal is highly difficult.For this purpose, very high frequency(VHF) Partial discharge signal inside high-voltage cable insulating connector how is found earlier, from
And defect is found early, it is one of high-voltage cable insulating connector field problem to be solved.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of high pressures of built-in very high frequency(VHF) partial discharge sensing device
Cable insulated joint, being able to solve very high frequency(VHF) Partial discharge signal long range propagation attenuation causes can't detect, and leads to not send out in time
The problem of existing high-voltage cable insulating internal defect of joint；Structure arrangement is more compact, is conducive to maintenance, maintenance and control cost.
In order to solve the above-mentioned technical problem, the embodiments of the present invention provide a kind of built-in very high frequency(VHF) partial discharge sensing dress
The high-voltage cable insulating connector set, comprising: the first protective shell；Removably it is adapted to the second protection being connected on the first protective shell
The chamber that there is current supply cable to pass through for the inside of shell, the first protective shell and the second protection shell phase assembly；It can be socketed in chamber respectively
The end of the first protective case and the second protective case on inside cable, the first protective case and the second protective case is respectively equipped with assembly and connects
Connect end；The very high frequency(VHF) partial discharge sensing device that fastening is linked together can be adapted to the first protective case and the second protective case respectively, very
High frequency partial discharge sensing device includes: dead ring；It is placed in the very high frequency(VHF) partial discharge sensor being linked together inside dead ring with dead ring,
The binding post of very high frequency(VHF) partial discharge sensor is emerging in the outside of dead ring；And dead ring can be fastened respectively together with binding post
Clamping position on assembly connection end；The adapter component being installed on the second protective shell, in which: pass through assembly connection end and card
Very high frequency(VHF) partial discharge sensing device, the first protective case and the second protective case are linked together by the adaptation connection for holding position, and binding post is connected
It connects on adapter component, it is external to carry out signal.
Wherein, assembly connection end is several through holes, and clamping position is several screw holes；Open up the through hole at assembly connection end with
The quantity and position for opening up the screw hole of clamping position correspond.
Wherein, further includes: coaxial cable connecting line, coaxial cable connecting line include: wire body, be located at wire body one end to
The connecting ear that is connected on binding post and the SMA connector for being located at the wire body other end.
Wherein, rubber pad is assembled between the first protective shell and the second protective shell.
Wherein, the inside and chamber that the first protective case, the second protective case and very high frequency(VHF) partial discharge sensing device are linked together
Prefabricated straight-through part device is additionally provided between internal cable.
Wherein, the first protective shell and the second protective shell are respectively glass reinforced plastic protection
The high-voltage cable insulating connector for implementing the built-in very high frequency(VHF) partial discharge sensing device of the utility model has with following
Beneficial effect:
The first, very high frequency(VHF) partial discharge sensing device is adapted to fastening with the first protective case, the second protective case and is linked together, will be very high
Frequency partial discharge sensing device is built in the inside of high-voltage cable insulating connector, solves very high frequency(VHF) Partial discharge signal long range propagation attenuation and leads
Cause can't detect, and lead to not the problem of finding high-voltage cable insulating internal defect of joint in time；Can discovery early it is small
Partial discharge defect, and carry out defect elimination early effectively avoids high voltage insulation joint from causing failure because of the expansion of partial discharge defect,
It is the strong technical guarantee of safe and reliable operation of Voltage Cable Lines Construction.
The second, structure design is more simplified, and arrangement is more compact, is conducive to maintenance, maintenance and control cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the explosion knot of the high-voltage cable insulating connector of very high frequency(VHF) partial discharge sensing device built in the utility model embodiment
Structure schematic diagram.
Fig. 2 is that the utility model embodiment very high frequency(VHF) partial discharge sensing device is adapted to tightly with the first protective case, the second protective case
The structural schematic diagram being fixed with one.
Fig. 3 is the blasting arrangement schematic diagram of the utility model embodiment very high frequency(VHF) partial discharge sensing device.
Fig. 4 is the assembling structure schematic diagram of the utility model embodiment very high frequency(VHF) partial discharge sensing device.
Fig. 5 is the structural schematic diagram of the utility model embodiment adapter component rigging position.
Fig. 6 is the structural schematic diagram at the first visual angle of the utility model embodiment adapter component.
Fig. 7 is the structural schematic diagram at the second visual angle of the utility model embodiment adapter component.
Fig. 8 is the structural schematic diagram of the utility model embodiment coaxial cable connecting line.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It as Figure 1-Figure 8, is the high-voltage cable insulating connector of very high frequency(VHF) partial discharge sensing device built in the utility model
Embodiment one.
As shown in Figs. 1-2, the high-voltage cable insulating connector of the built-in very high frequency(VHF) partial discharge sensing device in the present embodiment, can
The very high frequency(VHF) partial discharge sensing device being arranged in inside high-voltage cable insulating connector is connected to external inspection very high frequency(VHF) partial discharge detection
Instrument realizes the very high frequency(VHF) partial discharge detection of high-voltage cable insulating connector high sensitivity, can be applied to 110kV and above
High-tension cable straight coupling.
High-voltage cable insulating connector in the present embodiment includes: the first protective shell 11；Dismountable adaptation is connected to first
There is current supply cable A to wear for the inside that the second protective shell 12 on protective shell 11, the first protective shell 11 and the second protective shell 12 mutually assemble
The chamber T crossed；The first protective case 13 and the second protective case 14 that can be socketed in respectively on chamber T inside cable A, the first protection
End on set 13 and the second protective case 14 is respectively equipped with assembly connection end 132,142.Can respectively with the first protective case 13 and
The very high frequency(VHF) partial discharge sensing device 2 that the adaptation fastening of second protective case 14 is linked together, very high frequency(VHF) partial discharge sensing device 2 are located at high pressure
The inside of cable insulated joint.
Very high frequency(VHF) partial discharge sensing device 2 includes: dead ring 21；It is placed in what 21 inside of dead ring was linked together with dead ring 21
The binding post 221 of very high frequency(VHF) partial discharge sensor 22, very high frequency(VHF) partial discharge sensor 22 is emerging in the outside of dead ring 21；It can will be exhausted
Edge ring 21 is fixedly secured to the clamping position 24 on assembly connection end 132,142 together with binding post 221 respectively.
The adapter component 3 being installed on the second protective shell 12, in which: pass through assembly connection end 132,142 and clamping position
Very high frequency(VHF) partial discharge sensing device 2, the first protective case 13 and the second protective case 14 are linked together by 24 adaptation connection, by binding post
221 are connected on adapter component 3, external to carry out signal.
When it is implemented, the first protective shell 11 and the second protective shell 12 are two half-shell structures, respectively there is certain degree of hardness
Glass steel material protective shell, good protective value can be played.First protective shell 11 and 12 pairs of the second protective shell tippings
It is in the form of a column after matching, inside forms chamber T, passes through to current supply cable A.
Cable A includes cable body A1 and the prefabricated straight-through part device that is fastened on outside cable body A1 in the present embodiment
A2.Prefabricated straight-through part device A2 in the present embodiment includes: conductor connecting tube, shielding case, semi-conductive tape, copper shield net, pyrocondensation
The structures such as set, copper binding wire, scolding tin.It is to be understood that very high frequency(VHF) partial discharge sensing device 2, the first protective case 13 and second are protected
Sheath 14 is socketed in the outside of prefabricated straight-through part device A2 after being linked together.
Further, rubber pad 15 is set when the first protective shell 11 and the second protective shell 12 assemble, so to guarantee sealing
Insulation performance.In preferred embodiment, it can also be arranged in the first protective shell 11 with the end that the second protective shell 12 mutually assembles
Water-proof seal adhesive tape.
First protective case 13 and the second protective case 14 are copper pipe sleeve, and the structure and size of two components are roughly the same, assemble cloth
It sets substantially symmetric.First protective case 13 and the second protective case 14 can distinguish assembly connection very high frequency(VHF) partial discharge sensing device 2.
As shown in Figure 3-4, very high frequency(VHF) partial discharge sensing device 2 is assemblied in the inside of high-voltage cable insulating connector, very high frequency(VHF) office
Putting sensing device 2 includes: dead ring 21；It is placed in the very high frequency(VHF) partial discharge sensor that 21 inside of dead ring is linked together with dead ring 21
22, the binding post 221 of very high frequency(VHF) partial discharge sensor 22 is emerging in the outside of dead ring 21；It can be by dead ring 21 together with binding post
221 are fastened on the clamping position 24 on assembly connection end 132,142 respectively.
When it is implemented, dead ring 21 is cyclic structure, it is made of epoxide resin material.Very high frequency(VHF) partial discharge sensor 22 wraps
Two semicircular rings structural member 22a, 22b are included, are made of copper material, binding post 221 is respectively provided at two semicircular ring structural members
The end of 22a, 22b.Very high frequency(VHF) partial discharge sensor 22 is integrally formed with dead ring 21 and non-dismountable, high frequency partial discharge sensor 22
Binding post 221 be emerging in the outside of dead ring 21.
Assembly connection end 132,142 is several through holes in the present embodiment, and clamping position 24 is several screw holes, assembly connection end
132,142 through hole and the screw hole quantity of clamping position 24 and position correspond, and so in order to quick assembling, realization is torn open
Dress.
When specific assembly, a certain number of connectors, such as bolt K are each passed through assembly connection end 132,142 and one by one
In the corresponding screw hole for being fastened on clamping position 24, very high frequency(VHF) partial discharge sensing device 2, the first protective case 13 and the second protective case are realized
14 assembly.
Further, as shown in Figure 5-Figure 7, it is additionally provided with adapter component 3 on the second protective shell 12, adapter component 3
Effect is: the very high frequency(VHF) partial discharge sensing device of high-voltage cable insulating connector is connected to external inspection very high frequency(VHF) partial discharge detection instrument,
Realize high-voltage cable insulating connector very high frequency(VHF) partial discharge detection.
When it is implemented, adapter component 3 includes: the guard ring being installed on a protective shell of high-voltage cable insulating connector
31 and the protective shell 12 that is located at guard ring 31 inside on adapter 32, in which: adapter 32 is with can be assemblied in protective shell
First connector 321 of the internal very high frequency(VHF) partial discharge sensing device 2 to connect high-voltage cable insulating connector and it is located at protection
Outside shell to connect the second connector of external inspection very high frequency(VHF) partial discharge detection instrument 322.
The effect of guard ring 31 is: preventing from being damaged in transport and installation process, two side positions of guard ring 31 are equipped with
Line outlet groove 311 is convenient for cabling.In other embodiment, packaging plastic can also be perfused in guard ring 31 and be packaged protection.
Adapter 32 in the present embodiment is N/SMA-KKF type adapter, and the first connector 321 is can be with coaxial electrical
The SMA connector (mother) of the adaptation connection of cable connecting line 4, the second connector 322 are the connectivity port N/SMA-KKF.
When it is implemented, adapter 32 can be fastened on the second protective shell 12 by the way of screw-threaded coupling, meanwhile, the
It is socketed with O-ring seal 323 on the adapter 32 of one connector, 321 side, sealed insulation is enhanced with this.
Further, the connection of the very high frequency(VHF) partial discharge sensing device 2 inside high-voltage cable insulating connector and adapter 32 can
To be implemented by coaxial cable connecting line 4.
As shown in figure 8, coaxial cable connecting line 4 includes: wire body 41 in the present embodiment, be located at 41 one end of wire body to
The connecting ear 42 that is connected on binding post 221 and the SMA connector 43 for being located at 41 other end of wire body.Connecting ear 42 and binding post
221 connection can be by the way of screw locking, and SMA connector 43 is to be adapted with the SMA connector (mother) of adapter 32
SMA connector (public affairs), 50 Ω of impedance.
The high-voltage cable insulating connector of the built-in very high frequency(VHF) partial discharge sensing device of the utility model in the specific implementation, passes through
Replacement component simultaneously assembles, and the function of built-in very high frequency(VHF) partial discharge sensor may be implemented.Such as: according to above-mentioned assembly method, replacement
The second protective shell 12 with adapter component 3 carries out being adapted to installation with the first protective shell 11.Connector, such as spiral shell are used first
Bolt K is each passed through assembly connection end 132,142 and is fastened in the screw hole of clamping position 24 correspondingly, realizes very high frequency(VHF) partial discharge
The assembly of sensing device 2, the first protective case 13 and the second protective case 14 assembles very high frequency(VHF) partial discharge sensing device 2 in high-voltage electricity
The inside of cable insulating joint.Then, using coaxial cable connecting line 4 by the of very high frequency(VHF) partial discharge sensing device 2 and adapter 32
The connection of one connector 321 realizes that signal is external.Finally, the second company of external inspection very high frequency(VHF) partial discharge detection instrument and adapter 32
Connector 322 connects, and realizes the very high frequency(VHF) partial discharge detection of high-voltage cable insulating connector high sensitivity.
The high-voltage cable insulating connector for implementing the built-in very high frequency(VHF) partial discharge sensing device of the utility model has with following
Beneficial effect:
The first, very high frequency(VHF) partial discharge sensing device is adapted to fastening with the first protective case, the second protective case and is linked together, will be very high
Frequency partial discharge sensing device is built in the inside of high-voltage cable insulating connector, solves very high frequency(VHF) Partial discharge signal long range propagation attenuation and leads
Cause can't detect, and lead to not the problem of finding high-voltage cable insulating internal defect of joint in time；Can discovery early it is small
Partial discharge defect, and carry out defect elimination early effectively avoids high voltage insulation joint from causing failure because of the expansion of partial discharge defect,
It is the strong technical guarantee of safe and reliable operation of Voltage Cable Lines Construction.
The second, structure design is more simplified, and arrangement is more compact, is conducive to maintenance, maintenance and control cost.
Claims (6)
1. a kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device characterized by comprising
First protective shell；
It is removably adapted to the second protective shell being connected on first protective shell, first protective shell and described second protect
The chamber that there is current supply cable to pass through for the inside that protective case mutually assembles；
The first protective case and the second protective case that can be socketed in respectively on the chamber interior cable, first protective case and
The end of second protective case is respectively equipped with assembly connection end；
The very high frequency(VHF) partial discharge sensing that fastening is linked together can be adapted to first protective case and second protective case respectively
Device, the very high frequency(VHF) partial discharge sensing device includes: dead ring；It is placed in inside the dead ring and is linked together with the dead ring
Very high frequency(VHF) partial discharge sensor, the binding post of the very high frequency(VHF) partial discharge sensor is emerging in the outside of the dead ring；And energy
Enough clamping positions being fastened on the dead ring respectively together with the binding post on the assembly connection end；
The adapter component being installed on second protective shell, in which: pass through the assembly connection end and the clamping position
The very high frequency(VHF) partial discharge sensing device, first protective case and second protective case are linked together by adaptation connection, by institute
Binding post is stated to be connected on the adapter component, it is external to carry out signal.
2. the high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device as described in claim 1, which is characterized in that institute
Stating assembly connection end is several through holes, and the clamping position is several screw holes；
The through hole and the quantity for the screw hole for opening up the clamping position and position for opening up the assembly connection end correspond.
3. the high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device as claimed in claim 2, which is characterized in that also
Include: coaxial cable connecting line, the coaxial cable connecting line includes: wire body, be located at described wire body one end to be connected to
Connecting ear on the binding post and the SMA connector for being located at the wire body other end.
4. the high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device as claimed in claim 2, which is characterized in that institute
It states and assembles rubber pad between the first protective shell and second protective shell.
5. the high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device as claimed in claim 2, which is characterized in that institute
State the inside and the chamber that the first protective case, second protective case and the very high frequency(VHF) partial discharge sensing device are linked together
Prefabricated straight-through part device is additionally provided between internal cable.
6. the high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device as claimed in claim 2, which is characterized in that institute
Stating the first protective shell and second protective shell is respectively glass reinforced plastic protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821428357.XU CN209044008U (en) | 2018-09-03 | 2018-09-03 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821428357.XU CN209044008U (en) | 2018-09-03 | 2018-09-03 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
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| Publication Number | Publication Date |
|---|---|
| CN209044008U true CN209044008U (en) | 2019-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821428357.XU Active CN209044008U (en) | 2018-09-03 | 2018-09-03 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
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| CN (1) | CN209044008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116200A (en) * | 2018-09-03 | 2019-01-01 | 深圳供电局有限公司 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
-
2018
- 2018-09-03 CN CN201821428357.XU patent/CN209044008U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116200A (en) * | 2018-09-03 | 2019-01-01 | 深圳供电局有限公司 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
| CN109116200B (en) * | 2018-09-03 | 2024-03-19 | 深圳供电局有限公司 | High-voltage cable insulation joint with built-in very high frequency partial discharge sensing device |
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