CN112735787A - Method for arranging optical fiber sensors of power transformer - Google Patents
Method for arranging optical fiber sensors of power transformer Download PDFInfo
- Publication number
- CN112735787A CN112735787A CN202011528296.6A CN202011528296A CN112735787A CN 112735787 A CN112735787 A CN 112735787A CN 202011528296 A CN202011528296 A CN 202011528296A CN 112735787 A CN112735787 A CN 112735787A
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- Prior art keywords
- optical fiber
- distributed
- fiber sensor
- power transformer
- transformer
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 14
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
Abstract
The application discloses a power transformer optical fiber sensor arrangement method, wherein an optical fiber sensor comprises a first distributed optical fiber sensor, a second distributed optical fiber sensor and a third distributed optical fiber sensor; the first distributed optical fiber sensors are distributed around the upper gasket of the transformer winding and sequentially penetrate through the first cushion blocks of the upper gasket so as to be embedded in the first cushion blocks; the second distributed optical fiber sensors are distributed around the lower gasket of the transformer winding and sequentially penetrate through the second gaskets of the lower gasket so as to be embedded in the second gaskets; and the third distributed optical fiber sensors sequentially penetrate through the third cushion blocks between the adjacent cakes of the transformer winding from bottom to top so as to be embedded in the third cushion blocks. The original design structure of the transformer winding is not influenced, the overall conditions of the winding state and the cushion block state of the power transformer can be accurately fed back, and the on-site main transformer state evaluation and fault diagnosis work can be favorably carried out.
Description
Technical Field
The application relates to the technical field of transformers, in particular to an arrangement method of optical fiber sensors of a power transformer.
Background
In the power production, the running power transformer is influenced by transient through short-circuit current, and the problems of winding deformation, winding cushion block displacement and the like are easy to occur. The optical fiber sensor is arranged in the winding cushion block, so that the state of the winding cushion block of the power transformer can be monitored on line, and abnormal conditions such as the position and the structural form of the winding can be reflected. The transformer fault management and control system is beneficial for field operation and maintenance personnel to timely take corresponding management and control measures for the defects and faults of the transformer, and ensures safe and stable operation of the power system.
At present, an optical fiber sensor built in a power transformer winding is mostly directly laid along the winding, and the original winding insulation structure or the form of a wire needs to be changed. And built-in optical fiber sensor in the power transformer winding cushion block is mostly in a point-taking arrangement mode, and can only reflect the parameter change condition of the position of the winding part, and can not accurately feed back the overall conditions such as the winding state and the cushion block state.
Disclosure of Invention
In view of this, an object of the present application is to provide an arrangement method for optical fiber sensors of a power transformer, which does not affect an original design structure of a transformer winding, can accurately feed back an overall situation of a winding state and a cushion block state of the power transformer, and is beneficial to performing main transformer state evaluation and fault diagnosis work on site.
In order to achieve the technical purpose, the application provides a power transformer optical fiber sensor arrangement method, wherein the optical fiber sensor comprises a first distributed optical fiber sensor, a second distributed optical fiber sensor and a third distributed optical fiber sensor;
the first distributed optical fiber sensors are distributed around the upper gasket of the transformer winding and sequentially penetrate through the first cushion blocks of the upper gasket so as to be embedded in the first cushion blocks;
the second distributed optical fiber sensors are distributed around the lower gasket of the transformer winding and sequentially penetrate through the second gaskets of the lower gasket so as to be embedded in the second gaskets;
and the third distributed optical fiber sensor sequentially penetrates through third cushion blocks between adjacent cakes of the transformer winding from bottom to top so as to be embedded in the third cushion blocks.
Furthermore, a first optical fiber hole of the first cushion block is arranged in the middle of the first cushion block.
Furthermore, a second optical fiber hole of the second cushion block is arranged in the middle of the second cushion block.
Further, the number of the third distributed optical fiber sensors is two;
two third optical fiber holes are formed in each third cushion block;
and the two third distributed optical fiber sensors are distributed at intervals and sequentially penetrate through the third cushion block from bottom to top.
Further, two third optical fiber holes are distributed at one end part, far away from the winding inner insulation cylinder, of the third cushion block.
Furthermore, the two third optical fiber holes are respectively distributed at two corner end positions of one end part of the third cushion block.
According to the technical scheme, the optical fiber sensors for burying all adopt distributed optical fiber sensors, and particularly comprise a first distributed sensor, a second distributed sensor and a third distributed sensor; the first distributed sensors are distributed around the upper gasket of the transformer winding in a circle and sequentially penetrate through the first cushion blocks of the upper gasket so as to be embedded in the first cushion blocks; correspondingly, the second distributed sensors are distributed around the lower gasket of the transformer winding and sequentially penetrate through the second gaskets of the lower gasket so as to be embedded in the second gaskets; and the third distributed sensor sequentially penetrates through the third cushion blocks between every two adjacent cakes of the transformer winding from bottom to top to be embedded in the third cushion blocks. Compared with a conventional point-arranged optical fiber sensor, the distributed optical fiber sensor can detect more comprehensively and accurately, and is embedded in the cushion blocks of the upper gasket and the lower gasket in a surrounding penetrating mode; the cushion blocks between the adjacent cakes are embedded in a penetrating way from bottom to top. The method can realize accurate feedback of the overall conditions of the winding state and the cushion block state of the power transformer, and is favorable for carrying out main transformer state evaluation and fault diagnosis on site. Moreover, the embedding modes only need to be realized by forming holes in the cushion blocks, the original design structure and the insulation strength of the power transformer winding cannot be influenced, and the safe and stable operation of the power transformer is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a partial cross-sectional view of a transformer winding provided in the present application employing a method of power transformer fiber optic sensor placement;
FIG. 2 is a schematic diagram of an upper washer structure for applying a method of arranging an optical fiber sensor of a power transformer according to the present application;
fig. 3 is a schematic diagram of a first spacer structure of a transformer winding provided in the present application;
fig. 4 is a schematic diagram of a third pad structure of a transformer winding provided in the present application;
in the figure: 100. a first distributed fiber optic sensor; 200. a second distributed fiber optic sensor; 300. a third distributed fiber optic sensor; 1. an upper gasket; 11. a first cushion block; 111. a first fiber hole; 2. a lower gasket; 21. a second cushion block; 3. a cake body; 31. a third cushion block; 311. a third fiber hole; 4. an inner insulating cylinder.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a method for arranging optical fiber sensors of a power transformer.
Referring to fig. 1, an embodiment of a method for arranging an optical fiber sensor of a power transformer provided in an embodiment of the present application includes:
the optical fiber sensors comprise a first distributed optical fiber sensor 100, a second distributed optical fiber sensor 200 and a third distributed optical fiber sensor 300; the first distributed optical fiber sensors 100 are distributed around the upper gasket 1 of the transformer winding, sequentially penetrate through the first cushion blocks 11 of the upper gasket 1, and are embedded in the first cushion blocks 11; the second distributed optical fiber sensors 200 are distributed around the lower gasket 2 of the transformer winding, sequentially penetrate through the second cushion blocks 21 of the lower gasket 2, and are embedded in the second cushion blocks 21; the third distributed optical fiber sensor 300 sequentially penetrates through the third cushion blocks 31 between the adjacent cakes 3 of the transformer winding from bottom to top so as to be embedded in the third cushion blocks 31.
According to the technical scheme, compared with a conventional point-arranged optical fiber sensor, the distributed optical fiber sensor can detect more comprehensively and accurately, and is embedded in the cushion blocks of the upper gasket 1 and the lower gasket 2 in a surrounding penetrating mode; the cushion blocks between the adjacent cakes are embedded in a penetrating way from bottom to top. The method can realize accurate feedback of the overall conditions of the winding state and the cushion block state of the power transformer, and is favorable for carrying out main transformer state evaluation and fault diagnosis on site. Moreover, the embedding modes only need to be realized by forming holes in the cushion blocks, the original design structure and the insulation strength of the power transformer winding cannot be influenced, and the safe and stable operation of the power transformer is facilitated.
The above is a first embodiment of the method for arranging the optical fiber sensor of the power transformer according to the embodiment of the present application, and the following is a second embodiment of the method for arranging the optical fiber sensor of the power transformer according to the embodiment of the present application, specifically referring to fig. 1 to 4.
The scheme based on the first embodiment is as follows:
further, as shown in fig. 2 and 3, the first fiber hole 111 of the first mat 11 for passing the first distributed fiber sensor 100 may be opened at a middle position thereof. Similarly, the second fiber hole (not shown) of the second spacer 21 may also be opened at the middle position thereof. Of course, it is not limited to the middle position, and those skilled in the art can make appropriate adjustments based on this.
Further, in order to further improve the accuracy of detection feedback, two or more third distributed optical fiber sensors 300 may be specifically used, and are not limited; taking two as an example, two third fiber holes 311 on each corresponding third pad 31 are also shown in fig. 4, and correspond to the third distributed fiber sensors 300 one to one. The two third distributed fiber sensors 300 are distributed at intervals and both sequentially pass through the third cushion block 31 from bottom to top.
Further, as shown in fig. 4, two third fiber holes 311 may be distributed at an end of the third spacer 31 away from the winding inner insulating cylinder 4. Specifically, the two third fiber holes 311 are respectively distributed at two corner positions of one end of the third pad 31, and those skilled in the art can make appropriate changes based on the positions, and are not limited in particular.
While the method for arranging the optical fiber sensor of the power transformer provided by the present application has been described in detail, for a person skilled in the art, according to the concepts of the embodiments of the present application, the specific implementation and the application scope may be changed, and in summary, the content of the present application should not be construed as limiting the present application.
Claims (6)
1. A power transformer optical fiber sensor arrangement method is characterized in that the optical fiber sensor comprises a first distributed optical fiber sensor, a second distributed optical fiber sensor and a third distributed optical fiber sensor;
the first distributed optical fiber sensors are distributed around the upper gasket of the transformer winding and sequentially penetrate through the first cushion blocks of the upper gasket so as to be embedded in the first cushion blocks;
the second distributed optical fiber sensors are distributed around the lower gasket of the transformer winding and sequentially penetrate through the second gaskets of the lower gasket so as to be embedded in the second gaskets;
and the third distributed optical fiber sensor sequentially penetrates through third cushion blocks between adjacent cakes of the transformer winding from bottom to top so as to be embedded in the third cushion blocks.
2. The arrangement method of the optical fiber sensor of the power transformer as claimed in claim 1, wherein the first optical fiber hole of the first cushion block is opened at a middle position of the first cushion block.
3. The arrangement method of the optical fiber sensor of the power transformer as claimed in claim 2, wherein the second optical fiber hole of the second cushion block is opened at a middle position of the second cushion block.
4. The arrangement method of the optical fiber sensors of the power transformer as claimed in claim 1, wherein the number of the third distributed optical fiber sensors is two;
two third optical fiber holes are formed in each third cushion block;
and the two third distributed optical fiber sensors are distributed at intervals and sequentially penetrate through the third cushion block from bottom to top.
5. A power transformer optical fiber sensor arrangement method according to claim 4, wherein two third optical fiber holes are distributed at one end of the third cushion block far from the winding inner insulation cylinder.
6. A power transformer optical fiber sensor arrangement method according to claim 5, wherein two third optical fiber holes are respectively distributed at two corner positions of one end of the third cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011528296.6A CN112735787A (en) | 2020-12-22 | 2020-12-22 | Method for arranging optical fiber sensors of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011528296.6A CN112735787A (en) | 2020-12-22 | 2020-12-22 | Method for arranging optical fiber sensors of power transformer |
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| Publication Number | Publication Date |
|---|---|
| CN112735787A true CN112735787A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011528296.6A Pending CN112735787A (en) | 2020-12-22 | 2020-12-22 | Method for arranging optical fiber sensors of power transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116027227A (en) * | 2023-03-30 | 2023-04-28 | 南方电网科学研究院有限责任公司 | Transformer winding cushion block and transformer monitoring device with same |
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|---|---|---|---|---|
| CN106646097A (en) * | 2016-11-28 | 2017-05-10 | 华北电力大学 | Transformer winding deformation on-line monitoring system by employing fiber grating strain sensors |
| WO2018014675A1 (en) * | 2016-07-19 | 2018-01-25 | 国网电力科学研究院武汉南瑞有限责任公司 | Securing apparatus for optical fibre temperature measurement probe of oil-immersed transformer |
| CN208595928U (en) * | 2018-07-13 | 2019-03-12 | 中铁二院工程集团有限责任公司 | A kind of twisted steel anchor rod resultant stress optical fiber monitoring device |
| CN208889455U (en) * | 2018-12-03 | 2019-05-21 | 保定天威保变电气股份有限公司 | A kind of transformer coil fiber retention structures |
| CN110520947A (en) * | 2017-04-05 | 2019-11-29 | Abb瑞士股份有限公司 | Static Electro sensing device including winding and for monitoring the sensing system of temperature in winding |
-
2020
- 2020-12-22 CN CN202011528296.6A patent/CN112735787A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014675A1 (en) * | 2016-07-19 | 2018-01-25 | 国网电力科学研究院武汉南瑞有限责任公司 | Securing apparatus for optical fibre temperature measurement probe of oil-immersed transformer |
| CN106646097A (en) * | 2016-11-28 | 2017-05-10 | 华北电力大学 | Transformer winding deformation on-line monitoring system by employing fiber grating strain sensors |
| CN110520947A (en) * | 2017-04-05 | 2019-11-29 | Abb瑞士股份有限公司 | Static Electro sensing device including winding and for monitoring the sensing system of temperature in winding |
| US20200381175A1 (en) * | 2017-04-05 | 2020-12-03 | Abb Schweiz Ag | Static Electric Induction Apparatus Comprising A Winding And A Sensor System For Monitoring The Temperature In The Winding |
| CN208595928U (en) * | 2018-07-13 | 2019-03-12 | 中铁二院工程集团有限责任公司 | A kind of twisted steel anchor rod resultant stress optical fiber monitoring device |
| CN208889455U (en) * | 2018-12-03 | 2019-05-21 | 保定天威保变电气股份有限公司 | A kind of transformer coil fiber retention structures |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116027227A (en) * | 2023-03-30 | 2023-04-28 | 南方电网科学研究院有限责任公司 | Transformer winding cushion block and transformer monitoring device with same |
| CN116027227B (en) * | 2023-03-30 | 2023-08-29 | 南方电网科学研究院有限责任公司 | Transformer winding cushion block and transformer monitoring device with same |
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Application publication date: 20210430 |