CN206057407U - A kind of high tension cable sheath non-contact voltage sensor - Google Patents
A kind of high tension cable sheath non-contact voltage sensor Download PDFInfo
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- CN206057407U CN206057407U CN201620910250.3U CN201620910250U CN206057407U CN 206057407 U CN206057407 U CN 206057407U CN 201620910250 U CN201620910250 U CN 201620910250U CN 206057407 U CN206057407 U CN 206057407U
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- voltage sensor
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- tension cable
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Abstract
This utility model is related to a kind of high tension cable sheath non-contact voltage sensor, the voltage sensor is shaped as circular tube structure, include sheath, interior electrode, intermediate dielectric layer, external electrode and outer jacket from inside to outside successively, the sheath is with diameter greater than tested cable diameter, the side of the voltage sensor is provided with the opening through whole sensor vertically, is configured on tested cable.This utility model adopts open-close type mounting means; tested cable need not be disconnected; electric field intensity cable sheath to the downlead of protective grounding case around can must be measured with noncontact; according to the dependency of electric field intensity and lead voltage; can extrapolate voltage on lead, and lead voltage namely shield voltage.
Description
Technical field
This utility model is related to a kind of sensor, more particularly to a kind of high tension cable sheath non-contact voltage sensor.
Background technology
According to national standard, in the case where cable segment length is more than one kilometer, high tension cable sheath (screen layer) needs
One end is directly grounded, other end Jing sheath protectors (Zinc-Oxide Arrester) ground connection.Monitoring to shield voltage, generally in protection
Ground connection one end is carried out, and what reality was measured is the voltage at protector two ends.Carry out traditional contact to survey to protector both end voltage
Amount, security risk are very big, it is therefore necessary to develop a kind of contactless voltage measurement sensor, to realize the safety of shield voltage
Reliably detected.
Utility model content
This utility model is in order to solve the above problems, it is proposed that a kind of high tension cable sheath non-contact voltage sensor, adopts
With non-contacting method measure cable sheath to the downlead of protective grounding case around electric field intensity, according to electric field intensity with draw
The dependency of line voltage, you can extrapolate the voltage on lead, and lead voltage namely shield voltage.
To achieve these goals, this utility model adopts following scheme：
A kind of high tension cable sheath non-contact voltage sensor, is shaped as circular tube structure, includes interior shield from inside to outside successively
Layer, interior electrode, intermediate dielectric layer, external electrode and outer jacket, the sheath are passed with diameter greater than tested cable diameter, the voltage
The side of sensor is provided with the opening through whole sensor vertically, is configured on tested cable.
There is binding post the extension of the inner and outer electrodes, riveting.
The inner and outer electrodes adopt beryllium-bronze plate, and thickness is 0.1 millimeter -1 millimeter.
The intermediate dielectric layer adopts polyvinylidene fluoride material, and its thickness meets the insulation of induced voltage under the conditions of thunder and lightning will
Ask.
The sheath adopts flexible structure.
The beneficial effects of the utility model：
(1) voltage sensor must be arranged on the outside of tested cable using the noncontact of open-close type mode, it is possible to achieve to high pressure
The non-cpntact measurement of cable sheath voltage, realizes the safety monitoring of shield voltage, easy to use succinct；
(2) this sensor adopts bipolar electrode structure, it is not necessary to connect the earth as a reference point；
(3) this sensor adopts flexible structure, adapts to the diameter of various tested cables；
(4) this sensor is installed using open-close type, it is not necessary to is disconnected tested cable and can be realized installing and using.
Description of the drawings
Fig. 1 is this utility model structural representation；
Wherein 1- sheaths, electrode in 2-, 3- intermediate dielectric layers, 4- external electrodes, 5- outer jackets.6- is open
Specific embodiment：
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
A kind of high tension cable sheath non-contact voltage sensor, it is characterised in that the voltage sensor is shaped as pipe knot
Structure, includes sheath 1, interior electrode 2, intermediate dielectric layer 3, external electrode and outer jacket 4 from inside to outside successively, and the sheath 1 is straight
Footpath is more than tested cable diameter, and the side of the voltage sensor is provided with the opening 6 through whole sensor vertically, is configured
It is on tested cable.
Sheath 1 and the whole sensor of outer jacket 5 pairs serve insulation, the effect for supporting and protecting.
There is binding post the extension of the interior electrode 2 and external electrode 4, riveting, to be connected with signal adjustment circuit；
This sensor adopts bipolar electrode structure, it is not necessary to connect the earth as a reference point.
The interior electrode 2 and external electrode 4 adopt 0.1 millimeter to 1 millimeters thick of beryllium-bronze plate.
The intermediate dielectric layer adopts polyvinylidene fluoride material, and its thickness meets the insulation of induced voltage under the conditions of thunder and lightning will
Ask.
A kind of high tension cable sheath non-contact voltage sensor, using flexible structure, the internal diameter of sheath 1 is slightly larger than
External diameter of the high tension cable sheath to the downlead of protective grounding case；Various tested cable diameters are can adapt to, can be met now
The demand for using.
The sensor adopts open-close type mounting means, it is not necessary to disconnect tested cable, it is possible to realize the coupling of signal,
Voltage sensor must fit together perfectly where not requiring opening, and tested cable size is big, slightly can be open, and tested cable is straight
Footpath is little, then have and suitably overlap, and does not affect normal measurement.
In engineering construction, high tension cable sheath is chosen to the downlead (calling lead in the following text) of protective grounding case, connect as non-
The installation site of electric shock pressure sensor.Learnt according to Theory of Electromagnetic Field and field experimentation data, the electric field intensity around lead with
Voltage on lead has a dependency, particularly near the position of lead, electric field intensity is obvious with the dependency of lead voltage,
It is stable.Therefore by measure lead it is near around electric field intensity, according to the dependency of electric field intensity and lead voltage, you can reckoning
The voltage gone out on lead, and then obtain the value of shield voltage.
It is although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model, not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel are made by need not paying creative work
Within enclosing.
Claims (5)
1. a kind of high tension cable sheath non-contact voltage sensor, it is characterised in that the voltage sensor is shaped as pipe knot
Structure, from inside to outside successively include sheath, interior electrode, intermediate dielectric layer, external electrode and outer jacket, the sheath with diameter greater than
Tested cable diameter, the side of the voltage sensor are provided with the opening through whole sensor vertically, are configured to install
On tested cable.
2. a kind of high tension cable sheath non-contact voltage sensor according to claim 1, it is characterised in that：The interior electricity
There is binding post pole and the extension of external electrode, riveting.
3. a kind of high tension cable sheath non-contact voltage sensor according to claim 1, it is characterised in that：The interior electricity
Pole and external electrode adopt beryllium-bronze plate, and thickness is 0.1 millimeter to 1 millimeter.
4. a kind of high tension cable sheath non-contact voltage sensor according to claim 1, it is characterised in that：The centre
Dielectric layer adopts polyvinylidene fluoride material, and its thickness meets the insulating requirements of induced voltage under the conditions of thunder and lightning.
5. a kind of high tension cable sheath non-contact voltage sensor according to claim 1, it is characterised in that：The interior shield
Layer adopts flexible structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910250.3U CN206057407U (en) | 2016-08-19 | 2016-08-19 | A kind of high tension cable sheath non-contact voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910250.3U CN206057407U (en) | 2016-08-19 | 2016-08-19 | A kind of high tension cable sheath non-contact voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206057407U true CN206057407U (en) | 2017-03-29 |
Family
ID=58383584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620910250.3U Active CN206057407U (en) | 2016-08-19 | 2016-08-19 | A kind of high tension cable sheath non-contact voltage sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN206057407U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597704A (en) * | 2018-06-06 | 2018-09-28 | 广州供电局有限公司 | cable protective layer protector |
| CN109799185A (en) * | 2019-02-26 | 2019-05-24 | 国网山西省电力公司晋城供电公司 | A kind of equipment and its application method that multiple groups cable voltage class continuously identifies |
| CN112730952A (en) * | 2020-12-29 | 2021-04-30 | 康威通信技术股份有限公司 | High tension cable sheath ground connection case detection device |
| CN112924746A (en) * | 2021-01-29 | 2021-06-08 | 国网宁夏电力有限公司银川供电公司 | Device and method for measuring phase voltage of high-voltage cable terminal head |
-
2016
- 2016-08-19 CN CN201620910250.3U patent/CN206057407U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597704A (en) * | 2018-06-06 | 2018-09-28 | 广州供电局有限公司 | cable protective layer protector |
| CN108597704B (en) * | 2018-06-06 | 2024-03-26 | 广东电网有限责任公司广州供电局 | Cable sheath protector |
| CN109799185A (en) * | 2019-02-26 | 2019-05-24 | 国网山西省电力公司晋城供电公司 | A kind of equipment and its application method that multiple groups cable voltage class continuously identifies |
| CN112730952A (en) * | 2020-12-29 | 2021-04-30 | 康威通信技术股份有限公司 | High tension cable sheath ground connection case detection device |
| CN112924746A (en) * | 2021-01-29 | 2021-06-08 | 国网宁夏电力有限公司银川供电公司 | Device and method for measuring phase voltage of high-voltage cable terminal head |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 250101 A203, block F, entrepreneurship square, Qilu Software Park, No.1 Shunhua Road, high tech Development Zone, Jinan City, Shandong Province Patentee after: Conway Communication Technology Co., Ltd Address before: 250101 Qilu Software Park, No. 1 Shunhua Road, Jinan High-tech Development Zone, Shandong Province, A 203 Patentee before: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |