CN201820536U - Composite insulator (110 kV) with embedded optical fiber grating - Google Patents
Composite insulator (110 kV) with embedded optical fiber grating Download PDFInfo
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- CN201820536U CN201820536U CN2010205537208U CN201020553720U CN201820536U CN 201820536 U CN201820536 U CN 201820536U CN 2010205537208 U CN2010205537208 U CN 2010205537208U CN 201020553720 U CN201020553720 U CN 201020553720U CN 201820536 U CN201820536 U CN 201820536U
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Abstract
The utility model relates to a high-voltage insulator, in particular to a composite insulator (110 kV) with embedded optical fiber grating, which is implemented by embedding an optical fiber grating in an insulator core rod and can achieve the real-time on-line automatic monitoring of the stress and the temperature of the insulator. The composite insulator comprises an optical fiber, a white sleeve, a metal flexible sleeve, an outdoor armor sleeve and a core rod, wherein a grating is arranged on the optical fiber; the white sleeve is sleeved at the tail fiber part of the optical fiber; the metal flexible sleeve is sleeved on the outer side of the white sleeve; the outdoor armor sleeve is sleeved on the outer side of the metal flexible sleeve; a stepped slot is machined on the core rod and comprises a first slot, a second slot and a third slot; the metal flexible sleeve is fixedly connected inside the first slot, and the terminal cross section of the coverage area of the metal flexible sleeve is superposed with the right end surface of the first slot; the white sleeve is fixedly connected inside the second slot, and terminal cross section of the coverage area of the white sleeve is superposed with the right end surface of the second slot; the un-sleeved optical fiber part is fixedly connected inside the third slot; and the outer side of the core rod is sealed by sealant after the optical fiber is fixed.
Description
Technical field
The utility model relates to a kind of high-tension insulator, particularly a kind of fiber grating is implanted in the core rod of insulator, can be in real time, the 110kV composite insulator of the implantation fiber grating of the stress of online auto monitoring insulator and temperature.
Background technology
Safe operation to electric power system produces serious influence for the performance of high-tension insulator, particularly mechanical performance and insulation property, therefore, requires the mechanical strength and the insulation property of periodic monitoring insulator.Traditional insulator monitoring method was maked an inspection tour according to the requirement of DL/T864-2004 in every 1-2 month, and every 3-5 delivers to laboratory from shaft tower extraction insulator and carries out service check.This sampling method, exist working strength big, step on bar risk and deficiency such as very long consuming time.The whole observation process time is long, and labour intensity is big, and measurement data is disperseed, and can not follow the tracks of the time dependent situation of insulator performance again, therefore make a kind of energy in real time, the high-tension insulator of online auto monitoring, the safe operation of electric power system is seemed very important.
The life-span that can also normally move under the situations such as the exhaustion creep damage capability the when mechanical performance of composite insulator refers to the tensile failure load-bearing capacity in short-term of composite insulator and long-time running, its expression insulator do not rupture, come off; The electric property of composite insulator mainly refers to its insulation property, by the operating experience of reality as can be known, when the insulation property of insulator take place to destroy, produce conductive defect, local heating phenomenon appears, and change complete obiteration that can be not in time, in conjunction with the characteristics of heating, the local pyrexia phenomenon of monitoring insulator can capture the state that insulation property change.
Optical fiber sensing technology be accompanied by the development of optical fiber and Fibre Optical Communication Technology and develop rapidly a kind of be that carrier, optical fiber are the novel sensing technology of medium, perception and transmission outer signals with light.Fiber Bragg grating sensor is with the functional Fibre-Optic Sensors of Bragg grating as senser, its sensing principle is a light sensitivity of utilizing fiber optic materials, space interference striped with ultraviolet light forms the space phase grating in fibre core, according to extraneous physical parameter the influence of reflecting Bragg grating centre wavelength is come the extraneous physical values of inverse detection.The influential physical quantity of Bragg grating centre wavelength there are two kinds: temperature and stress.And, the variation of Bragg grating centre wavelength and temperature and stress are linear, because the insulating properties of optical fiber itself, light signal is not subject to characteristics such as electromagnetic environment influence, Fiber Bragg Grating FBG is implanted stress and the variation of temperature that can monitor insulator in the insulator effectively, do not influence the application of insulator in hyperbaric environment simultaneously.
The utility model content
Technical problem to be solved in the utility model provides a kind of for satisfying the requirement of safe operation of power system, design and production, adopt fiber grating to be implanted in the core rod of insulator, can be in real time, the 110kV composite insulator of the implantation fiber grating of the stress of online auto monitoring insulator and temperature.
For solving the problems of the technologies described above, the utility model is realized as follows: the 110kV composite insulator of implantation fiber grating described in the utility model comprises optical fiber, white sleeve pipe, metal teleflex, outdoor armouring sleeve pipe and plug; Optical fiber is provided with grating; Tail optical fiber at optical fiber partly is socketed with white sleeve pipe, is socketed with the metal teleflex in the outside of white sleeve pipe, is socketed with outdoor armouring sleeve pipe in the outside of metal teleflex; Be carved with the step trough that comprises groove one, groove two and groove three on the plug; The metal teleflex is fixedly connected in the groove one, and the metal teleflex area of coverage stops the cross section and overlaps with the right side of groove one; White sleeve pipe is fixedly connected in the groove two, and white sleeve covers district stops the cross section and overlaps with the right side of groove two; The fiber section of sleeve pipe is fixedly connected in the groove three; The plug outside that fixes optical fiber seals with fluid sealant.
The diameter of described optical fiber is 250um.
Totally 13 on described grating, it is evenly distributed on the optical fiber of 1205mm, and tail optical fiber length keeps 500mm at least.
The diameter of described white sleeve pipe is 900um, and white sleeve covers district stops the cross section apart from the initial cross section of grating area of coverage right side 150mm; Described white sleeve pipe is high temperature resistant sleeve pipe.
The diameter of described metal teleflex is 1.5mm, and the metal teleflex area of coverage stops the cross section apart from the initial cross-sectional left 5mm of the grating area of coverage.
The diameter of described outdoor armouring sleeve pipe is 3mm, and outdoor armouring cover area under control stops the cross section and stops cross-sectional left 5mm apart from the metal teleflex area of coverage.
Described diameter of mandrel is 18mm, and length overall is 1425mm; Groove one is that 2.5mm * 2.5mm is apart from the long groove of plug left end 3mm; Groove two is that 1.5mm * 1.5mm is apart from the long groove of the right-hand member 155mm of groove one; Groove three is the groove of 1mm * 1mm, and the length of groove three begins until the right-hand member of plug stops for the right-hand member from groove two.
Good effect of the present utility model: the 110kV composite insulator of implantation fiber grating described in the utility model be a kind of can be in real time, the stress of online auto monitoring insulator and the composite high voltage insulator of temperature.According to the national grid requirement of " nominal voltage is higher than 1000V interchange overhead transmission line and uses guide rule DL/T864-2004 with composite insulator ", maked an inspection tour in every 1-2 month, every 3-5 delivers to laboratory from shaft tower extraction insulator and carries out service check.Adopt the method for optical fiber composite insulator can avoid regular sampling inspection, and can monitor the composite insulator situation in real time.Simultaneously we are by the application of optical fiber composite insulator, in the hope of setting up composite insulator status monitoring net, thereby set about carrying out the scheme of " instructing insulator to change with status monitoring ", to replace the maintenance pattern of " plan sampling " " timing sampling "; Grasp the deterioration rule of electrical network main grid structure power transmission and transformation insulator, thereby prevent, reduce the generation of falling string, flashover fault.
This design under situation about not having a power failure to composite insulator carry out in real time, on-line monitoring, can prevent that string, lead land, the generation of flashover fault, operation to electrical network provides safety guarantee, and also the quality of life for development and national economy and broad masses of the people provides safeguard.This project advantage the most intuitively is to save manpower, financial resources in a large number, can also monitor accurately that the manual measurement method is difficult to or machinery and electric property during immeasurable composite insulator solid, solve the variety of issue that the manual measurement method is brought, filled up the blank in domestic this field.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a grating distribution schematic diagram of the present utility model
Fig. 2 is an optical fiber encapsulation schematic diagram of the present utility model
Fig. 3 is a plug cutting schematic diagram of the present utility model
Fig. 4 is that optical fiber of the present utility model is laid schematic diagram
Among the figure,
The initial cross section of 1 grating, the 2 grating areas of coverage
The 3 grating areas of coverage stop cutting 4 white sleeve covers districts and stop the cross section
The 5 metal teleflex areas of coverage stop 6 outdoor armouring cover areas under control, cross section and stop the cross section
7 grooves, one 8 grooves, 29 grooves three
10 plugs, 11 outdoor armouring sleeve pipe 12 metal teleflexs
13 white sleeve pipe 14 optical fiber
Embodiment
As shown in Figures 1 to 4, the 110kV composite insulator of implantation fiber grating described in the utility model comprises optical fiber, white sleeve pipe, metal teleflex, outdoor armouring sleeve pipe and plug; Optical fiber is provided with grating; Tail optical fiber at optical fiber partly is socketed with white sleeve pipe, is socketed with the metal teleflex in the outside of white sleeve pipe, is socketed with outdoor armouring sleeve pipe in the outside of metal teleflex; Be carved with the step trough that comprises groove one, groove two and groove three on the plug; The metal teleflex is fixedly connected in the groove one, and the metal teleflex area of coverage stops the cross section and overlaps with the right side of groove one; White sleeve pipe is fixedly connected in the groove two, and white sleeve covers district stops the cross section and overlaps with the right side of groove two; The fiber section of sleeve pipe is fixedly connected in the groove three; The plug outside that fixes optical fiber seals with fluid sealant.
The diameter of described optical fiber is 250um.
Totally 13 on described grating, it is evenly distributed on the optical fiber of 1205mm, and tail optical fiber length keeps 500mm at least.
The diameter of described white sleeve pipe is 900um, and white sleeve covers district stops the cross section apart from the initial cross section of grating area of coverage right side 150mm; Described white sleeve pipe is high temperature resistant sleeve pipe.
The diameter of described metal teleflex is 1.5mm, and the metal teleflex area of coverage stops the cross section apart from the initial cross-sectional left 5mm of the grating area of coverage.
The diameter of described outdoor armouring sleeve pipe is 3mm, and outdoor armouring cover area under control stops the cross section and stops cross-sectional left 5mm apart from the metal teleflex area of coverage.
Described diameter of mandrel is 18mm, and length overall is 1425mm; Groove one is that 2.5mm * 2.5mm is apart from the long groove of plug left end 3mm; Groove two is that 1.5mm * 1.5mm is apart from the long groove of the right-hand member 155mm of groove one; Groove three is the groove of 1mm * 1mm, and the length of groove three begins until the right-hand member of plug stops for the right-hand member from groove two.
The course of work of the present utility model is:
The 110kV composite insulator of implantation fiber grating described in the utility model, according to the influential physical quantity of Bragg grating centre wavelength is had two kinds: temperature and stress, and the principle that the variation of Bragg grating centre wavelength and temperature and stress are linear, Fiber Bragg Grating FBG is implanted stress and the variation of temperature that can monitor insulator in the composite insulator effectively, thereby play real-time monitoring the mechanical performance and the insulation property of composite insulator.
Claims (7)
1. implant the 110kV composite insulator of fiber grating, it is characterized in that: comprise optical fiber, white sleeve pipe, metal teleflex, outdoor armouring sleeve pipe and plug; Optical fiber is provided with grating; Tail optical fiber at optical fiber partly is socketed with white sleeve pipe, is socketed with the metal teleflex in the outside of white sleeve pipe, is socketed with outdoor armouring sleeve pipe in the outside of metal teleflex; Be carved with the step trough that comprises groove one, groove two and groove three on the plug; The metal teleflex is fixedly connected in the groove one, and the metal teleflex area of coverage stops the cross section and overlaps with the right side of groove one; White sleeve pipe is fixedly connected in the groove two, and white sleeve covers district stops the cross section and overlaps with the right side of groove two; The fiber section of sleeve pipe is fixedly connected in the groove three; The plug outside that fixes optical fiber seals with fluid sealant.
2. the 110kV composite insulator of implantation fiber grating according to claim 1 is characterized in that: the diameter of described optical fiber is 250um.
3. the 110kV composite insulator of implantation fiber grating according to claim 1 is characterized in that: totally 13 on described grating, and it is evenly distributed on the optical fiber of 1205mm, and tail optical fiber length keeps 500mm at least.
4. the 110kV composite insulator of implantation fiber grating according to claim 1 is characterized in that: the diameter of described white sleeve pipe is 900um, and white sleeve covers district stops the cross section apart from the initial cross section of grating area of coverage right side 150mm; Described white sleeve pipe is high temperature resistant sleeve pipe.
5. the 110kV composite insulator of implantation fiber grating according to claim 1 is characterized in that: the diameter of described metal teleflex is 1.5mm, and the metal teleflex area of coverage stops the cross section apart from the initial cross-sectional left 5mm of the grating area of coverage.
6. the 110kV composite insulator of implantation fiber grating according to claim 1 is characterized in that: the diameter of described outdoor armouring sleeve pipe is 3mm, and outdoor armouring cover area under control stops the cross section and stops cross-sectional left 5mm apart from the metal teleflex area of coverage.
7. the 110kV composite insulator of implantation fiber grating according to claim 1 is characterized in that: described diameter of mandrel is 18mm, and length overall is 1425mm; Groove one is that 2.5mm * 2.5mm is apart from the long groove of plug left end 3mm; Groove two is that 1.5mm * 1.5mm is apart from the long groove of the right-hand member 155mm of groove one; Groove three is the groove of 1mm * 1mm, and the length of groove three begins until the right-hand member of plug stops for the right-hand member from groove two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205537208U CN201820536U (en) | 2010-10-09 | 2010-10-09 | Composite insulator (110 kV) with embedded optical fiber grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205537208U CN201820536U (en) | 2010-10-09 | 2010-10-09 | Composite insulator (110 kV) with embedded optical fiber grating |
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| Publication Number | Publication Date |
|---|---|
| CN201820536U true CN201820536U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205537208U Expired - Fee Related CN201820536U (en) | 2010-10-09 | 2010-10-09 | Composite insulator (110 kV) with embedded optical fiber grating |
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| CN (1) | CN201820536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986398A (en) * | 2010-10-09 | 2011-03-16 | 甘肃省电力公司金昌供电公司 | Fiber Bragg grating-embedded 110kV composite insulator |
| CN102496432A (en) * | 2011-12-28 | 2012-06-13 | 甘肃省电力公司天水超高压输变电公司 | Fiber grating implanted 110kV composite coat zinc oxide lightning arrester and its preparation method |
-
2010
- 2010-10-09 CN CN2010205537208U patent/CN201820536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986398A (en) * | 2010-10-09 | 2011-03-16 | 甘肃省电力公司金昌供电公司 | Fiber Bragg grating-embedded 110kV composite insulator |
| CN101986398B (en) * | 2010-10-09 | 2016-07-20 | 甘肃省电力公司金昌供电公司 | Implant the 110kV composite insulator of fiber grating |
| CN102496432A (en) * | 2011-12-28 | 2012-06-13 | 甘肃省电力公司天水超高压输变电公司 | Fiber grating implanted 110kV composite coat zinc oxide lightning arrester and its preparation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20181009 |