CN107564700B - Method for fixing optical fiber in wiring process inside transformer - Google Patents
Method for fixing optical fiber in wiring process inside transformer Download PDFInfo
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- CN107564700B CN107564700B CN201710835762.7A CN201710835762A CN107564700B CN 107564700 B CN107564700 B CN 107564700B CN 201710835762 A CN201710835762 A CN 201710835762A CN 107564700 B CN107564700 B CN 107564700B
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- optical fiber
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Abstract
The invention discloses a method for fixing an optical fiber in a wiring process inside a transformer, which comprises the following steps: A. penetrating optical fibers into a gap of a transformer winding, manufacturing a plurality of optical fiber bending parts, and temporarily fixing two ends of each optical fiber bending part by using insulating tapes; B. the surface tension of the optical fiber is gradually reduced from one end positioned inside the transformer to one end positioned outside the transformer; C. when the two optical fibers are in a region which is parallel to each other and the distance between the two optical fibers is smaller than the threshold value, the surface tensions of the two optical fibers keep linear correlation; D. when the two sections of optical fibers are crossed with each other, the optical fiber at the lower part passes through any optical fiber bending part of the optical fiber at the upper part; E. after the optical fiber is completely penetrated in place, secondarily adjusting the surface tension of the optical fiber; F. and adhering and fixing the optical fiber. The invention can improve the defects of the prior art and improve the working stability of the optical fiber in the transformer.
Description
Technical Field
The invention relates to the technical field of transformer assembly, in particular to a fixing method for an optical fiber in a wiring process inside a transformer.
Background
In the prior art, the working parameters such as the temperature of the coil in the transformer are mostly measured by a fiber probe. This requires routing the optical fibers inside the transformer. The prior art has no special design for optical fiber arrangement, so that the optical fiber is easily influenced by the internal environment of the transformer in the working process of the transformer, and signal transmission interference and interruption are caused.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for fixing an optical fiber in the process of routing in a transformer, which can solve the defects of the prior art and improve the working stability of the optical fiber in the transformer.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A fixing method for an optical fiber in a wiring process inside a transformer comprises the following steps:
A. penetrating an optical fiber into a gap of a transformer winding, manufacturing an optical fiber bending part every 30-50 cm, and temporarily fixing two ends of the optical fiber bending part by using insulating tapes;
B. the surface tension of the optical fiber is gradually reduced from one end positioned inside the transformer to one end positioned outside the transformer; the surface tension of each optical fiber bending part area is smaller than that of the two end areas;
C. when the two optical fibers are in a region which is parallel to each other and the distance between the two optical fibers is smaller than the threshold value, the surface tensions of the two optical fibers keep linear correlation;
D. when the two sections of optical fibers are crossed with each other, the optical fiber at the lower part passes through any optical fiber bending part of the optical fiber at the upper part;
E. after the optical fiber is completely penetrated in place, secondarily adjusting the surface tension of the optical fiber;
F. and (4) removing the insulating adhesive tape, and adhering and fixing the optical fiber by using insulating glue.
Preferably, in the step A, the distance between the fixed position of the insulating tape and the two ends of the bending part of the optical fiber is 1.5-3 cm.
Preferably, in step B, the surface tension of the straight section of fiber is linearly reduced.
Preferably, in step B, the surface tension of any one of the fiber bends at different positions is kept uniform, the surface tension of the fiber bend is,
wherein F is the surface tension of the bent part of the optical fiber, F1And F2Respectively the surface tension of the two end regions of the bent portion of the optical fiber.
Preferably, in step C, the threshold value of the distance between the two optical fibers is 10 cm.
Preferably, in step D, spacers are provided between the optical fiber passing through the lower portion of the optical fiber bending portion and the optical fiber bending portion, and the spacers are respectively interference-fitted to the upper optical fiber bending portion and the lower optical fiber.
Preferably, in the step E, the surface tension of the straight-line section optical fiber is adjusted section by section from inside to outside to keep the linear reduction trend, and the surface tension change rate is reduced to 30% of that in the laying process; and then adjusting the surface tension of the optical fiber bending part according to the relation between the surface tension of the optical fiber bending part and the surface tension of the two ends of the optical fiber bending part determined in the step B.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention reduces the reduction of the transmission quality of the optical fiber caused by environmental factors such as the internal temperature of the transformer by improving the method for fixing the routing of the optical fiber in the transformer. The optical fiber bending part not only provides sufficient buffer allowance for the optical fiber in the transformer, but also can realize the cross arrangement between the optical fibers. The surface tension control range of each section of the optical fiber can effectively improve the change uniformity of the whole surface tension during working after the optical fiber is laid, and reduce the signal transmission problem caused by overlarge change of the surface tension of the optical fiber.
Drawings
Fig. 1 is a structural view of a jig according to an embodiment of the present invention.
Fig. 2 is a structural diagram of a first buckle in an embodiment of the present invention.
Fig. 3 is a structural view of a second buckle in an embodiment of the present invention.
Fig. 4 is a structural diagram of a third buckle in an embodiment of the invention.
In the figure: 1. a fixture; 2. a first through hole; 3. a second through hole; 4. a first buckle; 5. a first limit groove; 6. a first spring body; 7. a first adjusting bolt; 8. pulling a rope; 9. a second adjusting bolt; 10. a second buckle; 11. a third adjusting bolt; 12. a support frame; 13. locking the bolt; 14. a support arm; 15. a third buckle; 16. a second limit groove.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
One embodiment of the present invention comprises the steps of:
A. penetrating an optical fiber into a gap of a transformer winding, manufacturing an optical fiber bending part every 45cm, and temporarily fixing two ends of the optical fiber bending part by using an insulating tape;
B. the surface tension of the optical fiber is gradually reduced from one end positioned inside the transformer to one end positioned outside the transformer; the surface tension of each optical fiber bending part area is smaller than that of the two end areas;
C. when the two optical fibers are in a region which is parallel to each other and the distance between the two optical fibers is smaller than the threshold value, the surface tensions of the two optical fibers keep linear correlation;
D. when the two sections of optical fibers are crossed with each other, the optical fiber at the lower part passes through any optical fiber bending part of the optical fiber at the upper part;
E. after the optical fiber is completely penetrated in place, secondarily adjusting the surface tension of the optical fiber;
F. and (4) removing the insulating adhesive tape, and adhering and fixing the optical fiber by using insulating glue.
In the step A, the distance between the fixed position of the insulating tape and the two ends of the bent part of the optical fiber is 2 cm.
In step B, the surface tension of the straight-line segment fiber is linearly reduced.
In the step B, the surface tension of different positions of any one optical fiber bending part is kept consistent, the surface tension of the optical fiber bending part is,
wherein F is the surface tension of the bent part of the optical fiber, F1And F2Respectively the surface tension of the two end regions of the bent portion of the optical fiber.
In the step C, the threshold value of the distance between the two sections of optical fibers is 10 cm.
And D, arranging a cushion block between the optical fiber passing through the lower part of the optical fiber bending part and the optical fiber bending part, wherein the cushion block is in interference fit with the optical fiber bending part above and the optical fiber below respectively.
Step E, adjusting the surface tension of the straight-line section optical fiber section by section from inside to outside to keep the linear reduction trend of the straight-line section optical fiber, and reducing the surface tension change rate to 30% of that of the straight-line section optical fiber during arrangement; and then adjusting the surface tension of the optical fiber bending part according to the relation between the surface tension of the optical fiber bending part and the surface tension of the two ends of the optical fiber bending part determined in the step B.
The applicant finds in practical work that the method for fixing the optical fiber by using the insulating glue has the problems that the glue is easy to age, and the adjustment is not easy after the deviation of the fixing position occurs. Furthermore, the applicant developed a fixture specifically for routing optical fibers in a transformer in response to this practical problem.
Referring to fig. 1-4, two first through holes 2 parallel to each other are arranged in a fixture 1, a first buckle 4 is arranged at the bottom of each first through hole 2, a first limit groove 5 is arranged in each first buckle 4 in a sliding manner, optical fibers are in clearance fit with the first limit grooves 5, first spring bodies 6 are connected to two sides of each first limit groove 5, the first spring bodies 6 are connected with first adjusting bolts 7, pull ropes 8 are connected to the bottoms of the first limit grooves 5, and the pull ropes 8 are fixed on second adjusting bolts 9. Be provided with a second through-hole 3 in the fixture 1, second through-hole 3 and left first through-hole 2 mutually perpendicular just run through left first through-hole 2, are provided with third buckle 15 on the left side wall of left first through-hole 2, fixedly connected with second spacing groove 16 on the third buckle 15, optic fibre and the interference fit of second spacing groove 16. Be provided with second buckle 10 on the right side wall of first through-hole 2 on right side, threaded connection has third adjusting bolt 11 on the second buckle 10, and support frame 12 has been cup jointed in the slip on third adjusting bolt 11, and support frame 12 is connected with support arm 14 through locking bolt 13.
When two optic fibre parallel laying, penetrate two optic fibre respectively in first through-hole 2, first buckle 4 is used for adjusting the horizontal position of two optic fibres. When two optical fibers need to be crossed and distributed, the fixture 1 is erected, the first through hole 2 on the left side is located on the lower side, the optical fiber bending portion is arranged in the first through hole 2 on the upper side, the optical fibers penetrating through the optical fiber bending portion are arranged in the second through hole 3, the bending degree and the tension of the optical fiber bending portion are adjusted through the second buckle 10, and the straight line sections of the optical fibers are fixed through the third buckle 15.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A method for fixing optical fibers in the process of routing inside a transformer is characterized by comprising the following steps:
A. penetrating an optical fiber into a gap of a transformer winding, manufacturing an optical fiber bending part every 30-50 cm, and temporarily fixing two ends of the optical fiber bending part by using insulating tapes; a straight-line optical fiber is arranged between two adjacent optical fiber bending parts;
B. the surface tension of the optical fiber is gradually reduced from one end positioned inside the transformer to one end positioned outside the transformer; the surface tension of each optical fiber bending part area is smaller than that of the two end areas;
C. when the two optical fibers are in a region which is parallel to each other and the distance between the two optical fibers is smaller than the threshold value, the surface tensions of the two optical fibers keep linear correlation;
D. when the two sections of optical fibers are crossed with each other, the optical fiber at the lower part passes through any optical fiber bending part of the optical fiber at the upper part;
E. after the optical fiber is completely penetrated in place, secondarily adjusting the surface tension of the optical fiber;
F. and (4) removing the insulating adhesive tape, and adhering and fixing the optical fiber by using insulating glue.
2. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: in the step A, the distance between the fixed position of the insulating tape and the two ends of the bent part of the optical fiber is 1.5-3 cm.
3. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: in step B, the surface tension of the straight-line segment fiber is linearly reduced.
4. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 2, wherein: in the step B, the surface tension of different positions of any one optical fiber bending part is kept consistent, the surface tension of the optical fiber bending part is,
wherein F is the surface tension of the bent part of the optical fiber, F1And F2Respectively the surface tension of the two end regions of the bent portion of the optical fiber.
5. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: in the step C, the threshold value of the distance between the two sections of optical fibers is 10 cm.
6. The method for fixing the optical fiber in the process of routing inside the transformer according to claim 1, wherein: and D, arranging a cushion block between the optical fiber passing through the lower part of the optical fiber bending part and the optical fiber bending part, wherein the cushion block is in interference fit with the optical fiber bending part above and the optical fiber below respectively.
7. The method for fixing the optical fiber during the routing process inside the transformer according to claim 4, wherein: step E, adjusting the surface tension of the straight-line section optical fiber section by section from inside to outside to keep the linear reduction trend of the straight-line section optical fiber, and reducing the surface tension change rate to 30% of that of the straight-line section optical fiber during arrangement; and then adjusting the surface tension of the optical fiber bending part according to the relation between the surface tension of the optical fiber bending part and the surface tension of the two ends of the optical fiber bending part determined in the step B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835762.7A CN107564700B (en) | 2017-09-16 | 2017-09-16 | Method for fixing optical fiber in wiring process inside transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835762.7A CN107564700B (en) | 2017-09-16 | 2017-09-16 | Method for fixing optical fiber in wiring process inside transformer |
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| Publication Number | Publication Date |
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| CN107564700A CN107564700A (en) | 2018-01-09 |
| CN107564700B true CN107564700B (en) | 2020-03-13 |
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| CN201710835762.7A Expired - Fee Related CN107564700B (en) | 2017-09-16 | 2017-09-16 | Method for fixing optical fiber in wiring process inside transformer |
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| CN110739136B (en) * | 2019-10-23 | 2022-05-03 | 泗洪钰磁电子科技有限公司 | Inductor subassembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445527A (en) * | 2003-04-29 | 2003-10-01 | 上海交通大学 | Optical fiber sensor for measuring electrification quantity of transformer oil |
| CN103791848A (en) * | 2014-01-16 | 2014-05-14 | 云南电力试验研究院（集团）有限公司电力研究院 | Transformer winding monitoring system based on optical fiber sensing technology |
| CN204855019U (en) * | 2015-07-01 | 2015-12-09 | 广东电网有限责任公司电力科学研究院 | A optic fibre temperature measurement structure for 10kV distribution transformer is last |
| CN105675167A (en) * | 2016-02-03 | 2016-06-15 | 昆明理工光智检测科技有限公司 | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device |
-
2017
- 2017-09-16 CN CN201710835762.7A patent/CN107564700B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445527A (en) * | 2003-04-29 | 2003-10-01 | 上海交通大学 | Optical fiber sensor for measuring electrification quantity of transformer oil |
| CN103791848A (en) * | 2014-01-16 | 2014-05-14 | 云南电力试验研究院（集团）有限公司电力研究院 | Transformer winding monitoring system based on optical fiber sensing technology |
| CN204855019U (en) * | 2015-07-01 | 2015-12-09 | 广东电网有限责任公司电力科学研究院 | A optic fibre temperature measurement structure for 10kV distribution transformer is last |
| CN105675167A (en) * | 2016-02-03 | 2016-06-15 | 昆明理工光智检测科技有限公司 | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device |
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Address after: No. 619 Yonghuabei Street, Lianchi District, Baoding City, Hebei Province Applicant after: North China Electric Power University (Baoding) Applicant after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Applicant after: ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant after: SHANDONG ELECTRICAL ENGINEERING & EQUIPMENT GROUP CO., LTD. Applicant after: STATE GRID INNER MONGOLIA EASTERN POWER CO., LTD. Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143 Applicant before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Applicant before: North China Electric Power University (Baoding) Applicant before: ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant before: SHANDONG ELECTRICAL ENGINEERING & EQUIPMENT GROUP CO., LTD. Applicant before: STATE GRID INNER MONGOLIA EASTERN POWER CO., LTD. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yunpeng Inventor after: Wu Peng Inventor after: Liu Haibo Inventor after: Li Jun Inventor after: Yan Guanfeng Inventor after: Jiang Guoyi Inventor after: Chen Cheng Inventor after: Hu Shengnan Inventor after: Pi Benxi Inventor after: Cheng Lin Inventor after: Tian Yuan Inventor after: Nie Dexin Inventor after: Lu Yuncai Inventor after: Cao Xu Inventor after: Jiang Yi Inventor after: Liao Caibo Inventor before: Pi Benxi Inventor before: Wu Peng Inventor before: Liu Haibo Inventor before: Li Jun Inventor before: Yan Guanfeng Inventor before: Jiang Guoyi Inventor before: Chen Cheng Inventor before: Hu Shengnan Inventor before: Liu Yunpeng Inventor before: Cheng Lin Inventor before: Tian Yuan Inventor before: Nie Dexin Inventor before: Lu Yuncai Inventor before: Cao Xu Inventor before: Jiang Yi Inventor before: Liao Caibo |
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Granted publication date: 20200313 Termination date: 20200916 |