CN201993384U - Optical fiber Bragg grating high-voltage contact type sensor with insulator protection - Google Patents
Optical fiber Bragg grating high-voltage contact type sensor with insulator protection Download PDFInfo
- Publication number
- CN201993384U CN201993384U CN2010206554145U CN201020655414U CN201993384U CN 201993384 U CN201993384 U CN 201993384U CN 2010206554145 U CN2010206554145 U CN 2010206554145U CN 201020655414 U CN201020655414 U CN 201020655414U CN 201993384 U CN201993384 U CN 201993384U
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- China
- Prior art keywords
- optical fiber
- insulator
- bragg grating
- fiber bragg
- contact type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 61
- 239000012212 insulator Substances 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 229920000260 silastic Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The utility model relates to an optical fiber Bragg grating high-voltage contact type sensor with insulator protection, which comprises an insulator unit and an optical fiber, wherein the outer surface of the optical fiber (3) is packaged with a hydrophobic material packaging body (2) which is provided with a single or multiple optical fiber insulators, the top end of the optical fiber (3) is welded with an optical fiber Bragg grating sensing device (4), and the tail part of the optical fiber (3) is connected with an optical fiber connector (1). The optical fiber Bragg grating high-voltage contact type sensor with insulator protection solves the problems of safety and stability of an optical fiber Bragg grating detecting system under the environments of outdoor natural dirtiness and humidity in a foggy day. The integrally-molding optical fiber Bragg grating sensing structure has hydrophobicity and can normally work under the environments of outdoor natural dirtiness and humidity in the foggy day, and the electrical resistance is strong. The insulator structure increases the creep distance of the sensor.
Description
Technical field
But the utility model belongs to optical fiber Bragg raster contact high voltage measuring sensing device technical field.
Background technology
Along with Automation of Electric Systems develops rapidly, power supply reliability improves day by day, thereby the stability that detects link has been proposed more strict requirement.In order to adapt to this demand, necessarily require detection system under outdoor filthy naturally condition and greasy weather moisture conditions, can be safely and accurately detect the problem place of electric system.Therefore proposed to have the optical fiber Bragg raster high voltage contact type sensor of insulator protection.
Chinese patent 200520026255 discloses a kind of application of silicon rubber optical fiber insulator, the structure of its silicon rubber optical fiber insulator is: at the outside surface suit monolithic or the multi-disc silicon rubber optical fiber insulator of optical fiber, the top welding sensing device of optical fiber is provided with fiber connector at the afterbody of optical fiber.This structure is at optical fiber surface suit monolithic or multi-disc insulator, the encapsulation defective has appearred in insulator and optical fiber interface place, excessive and the issuable breakdown problem of local voltage on the seam appears in this defective very easily under high pressure, adverse weather condition, thereby threatens power system security.
Summary of the invention
The purpose of this utility model provides a kind of security, reliability and stability good just in order to overcome the weak point that above-mentioned prior art exists, optical fibre Bragg grating sensing structure with insulator, but this sensing arrangement can be applicable to the contact type measurement under the high voltage condition.
The purpose of this utility model is achieved by the following technical solution.
Optical fiber Bragg raster high voltage contact type sensor with insulator protection; comprise insulator unit and optical fiber; be provided with the hydrophobic material packaging body of monolithic or multi-disc optical fiber insulator at the outside surface parcel of optical fiber; the top welding optic fibre Bragg grating sensing device of optical fiber is at the afterbody connection fiber connector of optical fiber.
Insulator described in the utility model is arranged to the slightly disc portion of tapering, and the edge of disc portion has the convex edge.
The utility model optical fiber insulator is one-body molded by silastic material, and silicon rubber insulator adopts hydrophobic material, its role is to improve the insulating property under filthy condition of nature and the greasy weather moisture conditions.According to the system under test (SUT) electric pressure, select the optical fiber insulator of suitable quantity, make itself and Fibre Optical Sensor one-body molded.
The outside surface suit of the utility model optical fiber has the one-body molded encapsulation of monolithic or multi-disc insulator, and the top welding optic fibre Bragg grating sensing structure of optical fiber is provided with fiber connector at the afterbody of optical fiber, and utilizes the compression moulding of hydrophobic elastomeric material one.Insulator sheet number can make up according to the needs of the operational outfit class of insulation.
The dielectric level of electric transmission line isolator depends on that kind, shape, physical dimension and the string of insulator is long, and under the prerequisite that insulator kind shape and physical dimension are determined, the sheet number of every insulator string is determined by formula (1-1):
m≥λU
m/K
eL
0 (1-1)
In the formula, m is the sheet number of every insulator string; U
mRated line voltage (depending on the definition of λ) for the highest travel line voltage of system or system; λ is the creepage distance that compares of insulator; L
0How much creepage distances for every suspended insulator; K
eCoefficient of efficiency for the insulator creepage distance.
The beneficial effect of utility model is: optical fibre Bragg grating sensing structure and insulator are one-body molded under the silicon rubber elastomeric material, the insulator of silastic material and encapsulating material are hydrophobic material, have further improved optical fiber detecting element humidity, resistant sudden strain of a muscle and proof voltage level.Integrated formed structure has solved the excessive and issuable breakdown problem of local voltage on the seam, thereby strengthens security, the reliability and stability of monitoring system operation.
Effect of the present utility model is that the use of optical fiber insulator has strengthened the creepage distance of optical fibre Bragg grating sensing structure, and has strengthened its security and stability under complicated physical environment.The one-shot forming of hydrophobic material, optical fibre Bragg grating sensing structure insulating property, electric durability energy and waterproof, protection against the tide, anti-filthy ability are strengthened, thereby obviously improve the intensity of anti-power-frequency voltage, switching overvoltage and the lightning surge of optical fibre Bragg grating sensing structure, and solved the excessive and issuable breakdown problem of local voltage on the seam, thereby strengthen security, the reliability and stability of detection system operation.
Below the utility model is described in further detail by embodiment.
Description of drawings
Fig. 1 is the utility model structure principle chart;
Fig. 2 is the structure principle chart of optical fiber insulator unit.
Embodiment
The optical fiber Bragg raster high voltage contact type sensor that has the insulator protection as shown in Figure 1; comprise insulator unit and optical fiber; be provided with the hydrophobic material packaging body 2 of monolithic or multi-disc optical fiber insulator at the outside surface parcel of optical fiber 3; the top welding optic fibre Bragg grating sensing device 4 of optical fiber 3 is at the afterbody connection fiber connector 1 of optical fiber 3.Insulator is arranged to the slightly disc portion 5 of tapering as shown in Figure 2, and the edge of disc portion has convex edge 7, stretches along the top corner part on disc portion tapering surface and establishes the stem 6 that installs optical fiber.According to the system under test (SUT) electric pressure, select the optical fiber insulator of suitable quantity.Optical fiber insulator adopts integrated mode to encapsulate, and solves high voltage detects under filthy naturally condition and greasy weather moisture conditions security and integrity problem.
With the optical fiber insulator that is applicable to the 110kV electric pressure is embodiment, and concrete parameter is as follows:
A. insulator sheet number is 5;
B. insulator, dimensional parameters: the insulator disk diameter is 60mm;
C. the technical parameter of optical fiber Bragg raster is: centre wavelength is λ
B=1550nm.
To be suitable for electric pressure 220kV, concrete parameter is as follows:
A. insulator sheet number is 10;
B. insulator, dimensional parameters: insulator disk diameter 60mm;
C. the technical parameter of optical fiber Bragg raster is: centre wavelength is λ
B=1550nm.
Claims (2)
1. have the optical fiber Bragg raster high voltage contact type sensor of insulator protection, comprise insulator unit and optical fiber; It is characterized in that, be provided with the hydrophobic material packaging body (2) of monolithic or multi-disc optical fiber insulator at the outside surface of optical fiber (3) parcel, the top welding optic fibre Bragg grating sensing device (4) of optical fiber (3) connects fiber connector (1) at the afterbody of optical fiber (3).
2. the optical fiber Bragg raster high voltage contact type sensor with insulator protection as claimed in claim 1 is characterized in that described insulator is arranged to the slightly disc portion of tapering (5), and the edge of disc portion has convex edge (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206554145U CN201993384U (en) | 2010-12-13 | 2010-12-13 | Optical fiber Bragg grating high-voltage contact type sensor with insulator protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206554145U CN201993384U (en) | 2010-12-13 | 2010-12-13 | Optical fiber Bragg grating high-voltage contact type sensor with insulator protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993384U true CN201993384U (en) | 2011-09-28 |
Family
ID=44669870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206554145U Expired - Lifetime CN201993384U (en) | 2010-12-13 | 2010-12-13 | Optical fiber Bragg grating high-voltage contact type sensor with insulator protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037334A (en) * | 2017-04-08 | 2017-08-11 | 国网河南省电力公司安阳供电公司 | High-voltage transmission line insulator all -fiber monitoring network |
-
2010
- 2010-12-13 CN CN2010206554145U patent/CN201993384U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037334A (en) * | 2017-04-08 | 2017-08-11 | 国网河南省电力公司安阳供电公司 | High-voltage transmission line insulator all -fiber monitoring network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |