CN208805555U - A kind of cable connector partial discharge detection capacitance sensor - Google Patents
A kind of cable connector partial discharge detection capacitance sensor Download PDFInfo
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- CN208805555U CN208805555U CN201820888558.1U CN201820888558U CN208805555U CN 208805555 U CN208805555 U CN 208805555U CN 201820888558 U CN201820888558 U CN 201820888558U CN 208805555 U CN208805555 U CN 208805555U
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- cable connector
- partial discharge
- capacitance sensor
- discharge detection
- copper mesh
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Abstract
The utility model relates to a kind of cable connector partial discharge detection capacitance sensors, are arranged in inside the copper mesh wrapping layer of cable connector.Partial discharge sensor front is made using flexible PCB, and install the buffer zone of copper mesh covering additional, for controlling capacitor back gauge, it prevents from contacting with the copper mesh wrapping layer of cable connector, cause the change and short circuit of capacitor, partial discharge sensor front is connected with back side through hole, guarantee electric conductivity, the back side of capacitance sensor is connected with cable connector copper mesh wrapping layer, ensure the electric conductivity with cable connector copper mesh, reticular structure is used on cable connector built-in capacitance sensor, both increase area of detection in this way, also reduce capacitance, setting is outside cable connector silastic-layer and in copper mesh wrapping layer, it is easily installed.The utility model utilizes modern production process, the bound edge of conductive ring is realized in capacitance sensor periphery, to solve the stability problem of cable connector partial discharge sensor.
Description
Technical field
The utility model relates to High-Voltage Technology fields, and in particular to a kind of cable connector partial discharge detecting system capacitance sensing
Device.
Background technique
The shelf depreciation problem of high-tension cable is to cause the principal element of high-tension cable accident, carries out high-voltage cable joint
Work is detected, is to ensure that the primary work that high-tension cable operates normally.To find out its cause, mainly since the insulating element of cable is deposited
In defect, the micro electric discharge in part is generated.And the discharge process accelerates insulating performance of cable deterioration, eventually leads to cable breakdown.
The early stage partial discharge phenomenon for how measuring cable is of great significance to prevention cable fault.On the other hand, due to electric power electricity
The electric field stress of cable transition joint is more concentrated, and is the weak link of power cable insulation, it is easier to generate insulation fault.According to system
Meter, joint area between most cable insulation breakdown problem occurs in the cable.Therefore, the shelf depreciation state of cable connector
Detection is to improve the major tasks of cable running safety.
With the continuous development of power grid, power cable using more and more extensive, cable insulation monitoring technology has become
The important topic of power industry, cable partial discharge detection are the important channel that detection cable insulation whether there is defect, high pressure
Cable partial discharge detection is always the important indicator of the breakdown judge of cable connector.
Number of patent application is that the patent of CN2015210018872 discloses a kind of cable partial discharge detection sensor, but this
Kind device can be spliced into the semicircle magnetic catheter of annulus using two, wind inductor wire on magnetic catheter, and structure is complicated, at
This is higher, to make simple for structure, must reduce the capacitance of capacitance sensor, but capacitance sensor is too small, detects electric discharge
Range is with regard to small, because the randomness of discharge position causes small-sized capacitance sensor that cannot detect the electric discharge position of cable connector completely
It sets；Second is that if capacitance sensor done greatly, broad covered area, then capacitance also corresponding increase；According to Q=CV, cable discharge
One timing of Q value is measured, capacitor C value is bigger, and voltage V value is smaller；Detection device passes through detection voltage value V and fixed capacitance C, meter
Calculate discharge capacity Q；After capacitance C becomes larger, faint Partial discharge signal, it is impossible to be examined and come out.So how to accomplish both
It can guarantee that the examination scope of high-voltage cable joint partial discharge detection sensor is broad, reduce the capacitance of sensor again, this is existing
Stage needs the technological difficulties solved.
Utility model content
As described above, how exist in the prior art should guarantee that the detection range of capacitance sensor is broad, subtract again
The technical issues of capacitance of small sensor is capacitance sensor.In order to solve the above-mentioned technical problem, the utility model provides one
Kind cable connector partial discharge detection capacitance sensor, the partial discharge detection capacitance sensor are reticular structure, and front is flexible PCB,
And install the buffer zone of copper mesh covering additional, and the back side is connected with cable connector copper mesh wrapping layer, is made of copper foil, it is designed using leakage copper,
Position naked copper.
Preferably, the partial discharge detection capacitance sensor be all wrapped in the cable connector silastic-layer is outer and institute
It states in copper mesh wrapping layer.
In any of the above-described technical solution preferably, partial discharge detection capacitance sensor front uses flexible PCB.
In any of the above-described technical solution preferably, to guarantee that the capacitor of capacitance sensor is not influenced by installing,
The outer edge of the flexible PCB has installed buffer zone additional, which is covered using copper mesh, and the copper mesh with the flexible PCB back side
It is connected.
In any of the above-described technical solution preferably, the partial discharge detection capacitance sensor back side is made of copper foil, is adopted
With leakage copper design.
In any of the above-described technical solution preferably, the capacitance sensor uses reticular structure.
In any of the above-described technical solution preferably, the partial discharge detection capacitance sensor is reticular structure by conductor wire
Material is made.
In any of the above-described technical solution preferably, the electric wire is copper.
In any of the above-described technical solution preferably, the partial discharge detection capacitance sensor reticular structure uses circular net
Lattice or polygonal mesh.
In any of the above-described technical solution preferably, the partial discharge detection capacitance sensor polygonal mesh is using square
Shape grid or hexagonal mesh.
In any of the above-described technical solution preferably, the reticular structure is tight type reticular structure, mesh size
No more than 1 square centimeter.
In any of the above-described technical solution preferably, the partial discharge detection capacitance sensor is by the soft of different volumes size
Property PCB copper foil layer constitute multiple groups capacitance sensor.
It compared with prior art, is the cable connector office according to the preferred embodiment of the above-mentioned technical proposal of the utility model
Detection capacitance sensor is put using reticular structure, front is made for flexible PCB, and installs the buffer zone of copper mesh covering additional, back
Face is connected with cable connector copper mesh wrapping layer, is made of copper foil, using leakage copper design；And detection device is wrapped in cable connector
In silastic-layer is outer and copper mesh wrapping layer, and according to the technical solution of the utility model capacitance sensor is improved to netted
Structure, the reticular structure are made of electric wire, and the electric wire uses copper, and the partial discharge detection capacitance sensor is netted
Structure uses roundness mess or other polygonal mesh, and polygonal mesh mostly uses square net, hexagonal mesh；The net
Shape structure is tight type reticular structure, and mesh size is not more than 1 square centimeter；The partial discharge detection capacitance sensor is by difference
The flexible PCB copper foil layer of volume size constitutes multiple groups capacitance sensor.The partial discharge detection capacitance sensor can also detect it
Its high-tension apparatus, such as 110KV secondary terminal head, 220KV secondary terminal head.
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, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the preferred implementation according to the flexible PCB of the cable connector partial discharge detection capacitance sensor of the utility model
The scheme of installation of example.
The netted 3 cable connector silastic-layer of capacitance sensor of 1 cable connector copper mesh wrapping layer 2
Fig. 2 is the flexible PCB capacitance sensor according to the cable connector partial discharge detection capacitance sensor of the utility model
Tiling schematic diagram in front after the installation of one preferred embodiment.
After Fig. 3 is the installation according to the cable connector partial discharge detection capacitance sensor embodiment illustrated in fig. 2 of the utility model
Tile schematic diagram at the back side.
Fig. 4 is the capacitor according to the square net state of the cable connector partial discharge detection capacitance sensor of the utility model
The schematic diagram of one preferred embodiment of sensor.
1 cable connector copper mesh wrapping layer, 2 square net state capacitance sensor
3 cable connector silastic-layers
Fig. 5 is to pass according to the capacitor of the roundness mess state of the cable connector partial discharge detection capacitance sensor of the utility model
The schematic diagram of one preferred embodiment of sensor.
1 cable connector copper mesh wrapping layer, 2 square net state capacitance sensor
3 cable connector silastic-layers
Fig. 6 is the flexible PBC capacitance sensor according to the cable connector partial discharge detection capacitance sensor of the utility model
The installation trailing flank schematic diagram of one preferred embodiment.
The netted 3 cable connector silastic-layer of capacitance sensor of 1 cable connector copper mesh wrapping layer 2.
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
It clearly and completely describes, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
In order to overcome cable partial discharge detection technique the problems of in the prior art, the utility model embodiment is proposed
A kind of cable connector partial discharge detection capacitance sensor.
Fig. 1 is the scheme of installation according to one preferred embodiment of flexible PCB of the utility model.Cable connector partial discharge detection
Capacitance sensor 2 is made of one piece of reticular structure, and the capacitance sensor of reticular structure is made using flexible PCB, netted
Structure is made of electric wire, and electric wire uses copper；Netted capacitance sensor 2 is all wrapped in the silastic-layer of cable connector
Between 3 and copper mesh wrapping layer 1.
In the present embodiment, the netted capacitance sensor is made using flexibility PBC.
In the present embodiment, the netted capacitance sensor be mounted on cable connector silastic-layer 3 is outer and cable connector
In copper mesh wrapping layer 1.
In the present embodiment, the capacitance sensor built in cable connector uses reticular structure, both increases area of detection,
Capacitance is reduced, it is simple for structure, convenient for being installed outside the silastic-layer 3 of cable connector and in copper mesh wrapping layer 1.
Fig. 2 is front tiling after the installation according to a preferred embodiment of the flexible PCB capacitance sensor of the utility model
Schematic diagram.Cable connector partial discharge detection sensor front is made using flexible PCB, to guarantee the capacitor of capacitance sensor not
It is influenced by installing, installing copper mesh buffer zone additional in flexible PCB outer edge prevents flexible PCB and cable for controlling capacitor back gauge
The copper mesh wrapping layer of connector contacts, and causes the change and short circuit of capacitor, and buffer zone is covered using copper mesh, and carries on the back with flexible PCB
The copper mesh in face is connected, and guarantees electric conductivity.
In the present embodiment, the capacitance sensor front is made using flexibility PBC.
In the present embodiment, the capacitance sensor is reticular structure, using multiple-piece distributed arrangement
In the present embodiment, copper mesh buffer zone is installed additional in flexible PCB outer edge, not only controlled capacitor back gauge, but also prevent flexibility
PCB is contacted with the copper mesh wrapping layer of cable connector, causes the change and short circuit of capacitor.
In the present embodiment, the buffer zone is covered using copper mesh, is connected with the copper mesh at the flexible PCB back side, is guaranteed to lead
Electrically.
Fig. 3 is the schematic diagram that tiles according to the back side after the installation of the embodiment illustrated in fig. 2 of the utility model.The flexible PCB back side
It is connected with the copper mesh wrapping layer of cable connector, is made of copper foil, using leakage copper design, it is ensured that the conduction with cable connector copper mesh
Property.
In the present embodiment, the flexible PCB back side is connected with the copper mesh wrapping layer of cable connector.
In the present embodiment, the flexible PCB back side is made of copper foil.
In the present embodiment, using leakage copper design, it is ensured that the electric conductivity with cable connector copper mesh.
Fig. 4 is the schematic diagram according to one preferred embodiment of capacitance sensor of the square net state of the utility model.
The utility model embodiment cable connector partial discharge detection capacitance sensor is reticular structure, and reticular structure uses square net,
Reticular structure is tight type reticular structure, and mesh size is not more than 1 square centimeter, and square net state capacitance device 2 is placed on
Between cable connector copper mesh wrapping layer 1 and cable connector silastic-layer 3, the capacitance sensor is made of muti-piece reticular structure,
The capacitance sensor of muti-piece reticular structure composition is laid out is mounted on outside cable connector silastic-layer 3 in a distributed manner, cable copper mesh around
In covering 1.
In the present embodiment, the cable connector partial discharge detection capacitance sensor reticular structure is made of electric wire.
In the present embodiment, the electric wire is copper.
In the present embodiment, the reticular structure uses square net.
In the present embodiment, the reticular structure be tight type reticular structure, mesh size no more than 1 square centimeter with
It is interior.
In the present embodiment, the cable connector partial discharge detection capacitance sensor is made of muti-piece reticular structure, muti-piece net
The capacitance sensor of shape structure composition is laid out outside the silastic-layer 3 for being mounted on cable connector in a distributed manner and cable copper mesh wrapping layer
In 1.
Fig. 5 is the schematic diagram according to one preferred embodiment of capacitance sensor of the roundness mess state of the utility model.This
Utility model embodiment cable connector partial discharge detection capacitance sensor is reticular structure, and reticular structure is using round shape grid, net
Shape structure is tight type reticular structure, and mesh size is not more than 1 square centimeter, and roundness mess state capacitance device 2 is placed on cable
Between connector copper mesh wrapping layer 1 and cable connector silastic-layer 3, the capacitance sensor is made of muti-piece reticular structure, muti-piece
The capacitance sensor of reticular structure composition is laid out in a distributed manner to be mounted on outside cable connector silastic-layer 3, cable copper mesh wrapping layer 1
It is interior.
In the present embodiment, the cable connector partial discharge detection capacitance sensor reticular structure is made of electric wire.
In the present embodiment, the electric wire is copper.
In the present embodiment, the reticular structure uses roundness mess.
In the present embodiment, the reticular structure be tight type reticular structure, mesh size no more than 1 square centimeter with
It is interior.
In the present embodiment, the cable connector partial discharge detection capacitance sensor is made of muti-piece reticular structure, muti-piece net
The capacitance sensor of shape structure composition is laid out outside the silastic-layer 3 for being mounted on cable connector in a distributed manner and cable copper mesh wrapping layer
In 1.
Fig. 6 is to illustrate according to the installation trailing flank of a preferred embodiment of the flexible PBC capacitance sensor of the utility model
Figure.The utility model embodiment cable connector partial discharge detection capacitance sensor 2 by be all wrapped in cable connector silastic-layer 3 with
Between cable connector copper mesh wrapping layer 1, the capacitance sensor is made of muti-piece reticular structure, the electricity of muti-piece reticular structure composition
Hold sensor to be laid out in a distributed manner outside the silastic-layer 3 for being mounted on cable connector and in cable copper mesh wrapping layer 1.
In the present embodiment, the cable connector partial discharge detection capacitance sensor is made of muti-piece reticular structure, muti-piece
The capacitance sensor of reticular structure composition is laid out in a distributed manner.
In the present embodiment, it is outer and electric to be all wrapped in cable connector silastic-layer 3 for the netted capacitance sensor of the muti-piece
In cable copper mesh wrapping layer 1.
In conclusion the cable connector partial discharge detection capacitance sensor of the utility model has the advantage that the capacitor
Sensor uses reticular structure, and front is made for flexible PCB, and installs the buffer zone of copper mesh covering additional in its outer edge, this
Sample had both controlled capacitor back gauge, and having prevents flexible PCB from contacting with the copper mesh wrapping layer of cable connector, caused the change of capacitor and short
Road.
The above is only that preferred embodiments of the present invention are described, and is not the model to the utility model
It encloses and is defined；The foregoing is merely specific embodiment of the present utility model, it is not used to limit the utility model
Protection scope；Under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel is practical new to this
Any modification, equivalent substitution, improvement and etc. that the technical solution of type is made should all fall into the guarantor that claims of the present invention determines
It protects in range.
Claims (9)
1. a kind of cable connector partial discharge detection capacitance sensor, is set in the copper mesh wrapping layer of cable connector, it is characterised in that:
The partial discharge detection capacitance sensor be reticular structure, front be flexible PCB, and install additional copper mesh covering buffer zone, the back side with
The copper mesh wrapping layer of cable connector is connected, and is made of copper foil, using leakage copper design.
2. cable connector partial discharge detection capacitance sensor as described in claim 1, it is characterised in that: the partial discharge detection capacitor
Sensor is all wrapped in outside the silastic-layer of the cable connector and in the copper mesh wrapping layer.
3. cable connector partial discharge detection capacitance sensor as described in claim 1, it is characterised in that: in the flexible PCB
Outer edge installs buffer zone additional, which is covered using copper mesh, and is connected with the copper mesh at the flexible PCB back side.
4. cable connector partial discharge detection capacitance sensor as described in claim 1, it is characterised in that: the reticular structure is by leading
Electric wire material is made.
5. cable connector partial discharge detection capacitance sensor as claimed in claim 4, it is characterised in that: the electric wire is
Copper.
6. cable connector partial discharge detection capacitance sensor as described in claim 1, it is characterised in that: the partial discharge detection capacitor
Sensor reticular structure uses roundness mess or polygonal mesh.
7. cable connector partial discharge detection capacitance sensor as claimed in claim 6, it is characterised in that: the partial discharge detection capacitor
Sensor polygonal mesh uses square net or hexagonal mesh.
8. cable connector partial discharge detection capacitance sensor as described in claim 1, it is characterised in that: the partial discharge detection capacitor
The reticular structure of sensor is tight type reticular structure, and mesh size is less than 1 square centimeter.
9. cable connector partial discharge detection capacitance sensor as described in claim 1, it is characterised in that: the partial discharge detection capacitor
Sensor constitutes multiple groups capacitance sensor by the flexible PCB copper foil layer of different volumes size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820888558.1U CN208805555U (en) | 2018-06-08 | 2018-06-08 | A kind of cable connector partial discharge detection capacitance sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820888558.1U CN208805555U (en) | 2018-06-08 | 2018-06-08 | A kind of cable connector partial discharge detection capacitance sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208805555U true CN208805555U (en) | 2019-04-30 |
Family
ID=66225081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820888558.1U Active CN208805555U (en) | 2018-06-08 | 2018-06-08 | A kind of cable connector partial discharge detection capacitance sensor |
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| Country | Link |
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| CN (1) | CN208805555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784793A (en) * | 2019-10-29 | 2020-02-11 | 歌尔股份有限公司 | Wear detector and wearing formula electronic equipment |
| CN111103515A (en) * | 2019-12-10 | 2020-05-05 | 国网上海市电力公司 | Built-in cable partial discharge detection device and method |
| CN113252742A (en) * | 2021-03-09 | 2021-08-13 | 浙江新图维电子科技有限公司 | Lead sealing damage detection device and method based on distributed capacitance detection technology |
-
2018
- 2018-06-08 CN CN201820888558.1U patent/CN208805555U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784793A (en) * | 2019-10-29 | 2020-02-11 | 歌尔股份有限公司 | Wear detector and wearing formula electronic equipment |
| CN111103515A (en) * | 2019-12-10 | 2020-05-05 | 国网上海市电力公司 | Built-in cable partial discharge detection device and method |
| CN113252742A (en) * | 2021-03-09 | 2021-08-13 | 浙江新图维电子科技有限公司 | Lead sealing damage detection device and method based on distributed capacitance detection technology |
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