CN104142188A - Transformer winding temperature measuring device - Google Patents
Transformer winding temperature measuring device Download PDFInfo
- Publication number
- CN104142188A CN104142188A CN201410416574.7A CN201410416574A CN104142188A CN 104142188 A CN104142188 A CN 104142188A CN 201410416574 A CN201410416574 A CN 201410416574A CN 104142188 A CN104142188 A CN 104142188A
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- CN
- China
- Prior art keywords
- transformer
- temperature
- interface board
- fiber
- optical
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- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 5
- 238000006424 Flood reaction Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to measuring equipment for temperature of windings inside a transformer, in particular to a transformer winding temperature measuring device. The device comprises an interface board, fiber bragg grating temperature sensors and a fiber bragg grating demodulation instrument, wherein the interface board is fixed to a transformer box body, and the fiber bragg grating temperature sensors are fixedly embedded between the windings inside the transformer. Optical fiber connectors are fixed to the board surface of the interface board, optical fiber connector joints at the tail ends of the fiber bragg grating temperature sensors extend out of the transformer box body to be connected with one ends of the optical fiber connectors on the interface board, and the fiber bragg grating demodulation instrument is connected with the other ends of the optical fiber connectors on the interface board through optical fibers. The transformer winding temperature measuring device can safely monitor the temperature of the windings on line, is not disturbed by extremely strong electromagnetism inside the transformer, is high in measuring precision, and solves the problem that the temperature of the windings inside the transformer cannot be effectively measured.
Description
Technical field
The measuring equipment that the present invention relates to the inner winding temperature of transformer, is specially a kind of temperature of transformer winding device.
Background technology
In power industry equipment, high-power transformer is being undertaken the conversion of voltage, electric current and the vital role of power delivery, the directly safe and stable operation of the whole electric system of impact of his performance quality.Transformer is owing to being in for a long time oepration at full load state, adopt again full-enclosed structure, often cause its each position heating, staff cannot measure inner some the narrow and small position of transformer under many circumstances, particularly cannot measure the temperature on the winding of frequent heating, if transformer long-time running, causes heat generating components aging, directly threaten the safety of whole electrical network; Transformer Winding temperature determines the serviceable life of transformer, for the transformer temperature of AA class B insulation, insulation operation life be it is generally acknowledged and followed six degree rules: year-round average temperature has ordinary life while being 98 DEG C, 6 DEG C of the every increases of year-round average temperature, Transformer Insulation Aging speed doubles, reduce half the serviceable life of transformer, therefore Transformer Winding hottest spot temperature is the determinative in safety, economical operation and the serviceable life of transformer.
In power equipment, temperature of transformer winding method used mainly contains Thermistor Temperature Measurement at present, thermocouple thermometric, oil thermometer is in conjunction with calculating current method thermometric and infrared measurement of temperature, but winding is in high voltage, high-temperature, in the particular surroundings of highfield, thermal resistance, thermocouple is all used again plain conductor signal transmission, can produce electromagnetic interference (EMI) to environment, plain conductor is in oil for a long time, plain conductor is easily aging, easily produce short circuit, infrared thermometer cannot be arranged in transformer surface temperature that can only measuring transformer, and measurement result is influenced by ambient temperature, the shortcoming that the oil temperature tabular form indirect method of measurement exists error can not directly measure greatly, therefore cannot effectively measure Transformer Winding temperature now.
Summary of the invention
The problem that the present invention can not effectively be measured in order to solve the inner winding temperature of transformer, provides a kind of temperature of transformer winding device.
The present invention adopts following technical scheme to realize: a kind of temperature of transformer winding device, comprise the interface board that is fixed on transformer-cabinet, be mounted in fiber-optical grating temperature sensor and fiber Bragg grating (FBG) demodulator between winding in transformer, on the plate face of interface board, be also fixed with the joints of optical fibre, joints of optical fibre joint on fiber-optical grating temperature sensor tail end stretches out transformer-cabinet and is connected with one end of the joints of optical fibre on interface board, and fiber Bragg grating (FBG) demodulator is connected with the other end of the joints of optical fibre on interface board by optical fiber.
The fiber-optical grating temperature sensor being mounted between winding can record the temperature on winding, and by the light signal of fiber Bragg grating (FBG) demodulator demodulating fiber bragg grating temperature sensor transmission, obtains the temperature on winding; Fiber-optical grating temperature sensor has the incomparable advantage of traditional sensors, have the interference of electromagnetic field of not being subject to, response time fast, measure accurately high, pliability is good, flexible and erosion-resisting advantage, therefore the present invention is preferred fiber-optical grating temperature sensor, it can be installed in the interior rugged environment of transformer, realizes the on-line monitoring of winding temperature; Due to fiber-optical grating temperature sensor output be light signal, need fiber Bragg grating (FBG) demodulator solution dim signal, understand out the temperature value of fiber-optical grating temperature sensor region; The joints of optical fibre are used for the flexible connection between optical fiber and optical fiber, and then realize the connection of fiber-optical grating temperature sensor and fiber Bragg grating (FBG) demodulator.
Above-mentioned a kind of temperature of transformer winding device, is also lined with O-ring seal between interface board and transformer-cabinet, prevent that the oil leakage in transformer-cabinet from going out.
Above-mentioned a kind of temperature of transformer winding device, the material package of insulating oil-resisting dipping for fiber-optical grating temperature sensor, sensor meets the breakdown voltage resistant requirement of transformer.
Temperature of transformer winding device provided by the invention can be realized the on-line monitoring of winding temperature, be not subject to extremely strong electromagnetic interference (EMI) in transformer, and measuring accuracy is high, has solved the problem that the inner winding temperature of transformer can not effectively be measured.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of interface board.
Fig. 3 is the scheme of installation of fiber-optical grating temperature sensor.
In figure: 1-fiber-optical grating temperature sensor, 2-transformer-cabinet, 3-O-ring seal, 4-interface board, 5-bolt, 6-optical fiber, 7-fiber Bragg grating (FBG) demodulator, the 8-joints of optical fibre, 9-winding.
Embodiment
A kind of temperature of transformer winding device, comprise the interface board 4 that is fixed on transformer-cabinet 2, be mounted in fiber-optical grating temperature sensor 1 and fiber Bragg grating (FBG) demodulator 7 between winding 9 in transformer, on the plate face of interface board 4, be also fixed with the joints of optical fibre 8, joints of optical fibre joint on fiber-optical grating temperature sensor 1 tail end stretches out transformer-cabinet 2 and is connected with one end of the joints of optical fibre 8 on interface board 4, and fiber Bragg grating (FBG) demodulator 7 is connected with the other end of the joints of optical fibre 8 on interface board 4 by optical fiber 6.
Above-mentioned a kind of temperature of transformer winding device, is also lined with O-ring seal 3 between interface board 4 and transformer-cabinet 2.
Above-mentioned a kind of temperature of transformer winding device, the material package of fiber-optical grating temperature sensor 1 use insulating oil-resisting dipping.
When concrete enforcement, first chock is inserted in the gap between winding, then fiber-optical grating temperature sensor is put into winding space, extract chock after winding fiber-optical grating temperature sensor will be fixedly clamped; Interface board is fixed on transformer-cabinet 2 by bolt 5, and optical fiber 6 is selected the optical fiber without metal reinforcement, and on optical fiber 6, also cover has oversheath, and oversheath is made up of the material of nylon, silicon rubber insulation anti-tracking; The encapsulating material of fiber-optical grating temperature sensor can be selected pottery and Teflon.
Claims (3)
1. a temperature of transformer winding device, it is characterized in that comprising the interface board (4) being fixed on transformer-cabinet (2), be mounted in fiber-optical grating temperature sensor (1) and fiber Bragg grating (FBG) demodulator (7) between winding (9) in transformer, on the plate face of interface board (4), be also fixed with the joints of optical fibre (8), joints of optical fibre joint on fiber-optical grating temperature sensor (1) tail end stretches out transformer-cabinet (2) and is connected with one end of the joints of optical fibre (8) on interface board (4), fiber Bragg grating (FBG) demodulator (7) is connected with the other end of the joints of optical fibre (8) on interface board (4) by optical fiber (6).
2. a kind of temperature of transformer winding device according to claim 1, is characterized in that being also lined with O-ring seal (3) between interface board (4) and transformer-cabinet (2).
3. a kind of temperature of transformer winding device according to claim 1 and 2, is characterized in that the material package that fiber-optical grating temperature sensor (1) insulating oil-resisting floods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416574.7A CN104142188B (en) | 2014-08-22 | 2014-08-22 | A kind of temperature of transformer winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416574.7A CN104142188B (en) | 2014-08-22 | 2014-08-22 | A kind of temperature of transformer winding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104142188A true CN104142188A (en) | 2014-11-12 |
| CN104142188B CN104142188B (en) | 2016-09-07 |
Family
ID=51851432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410416574.7A Active CN104142188B (en) | 2014-08-22 | 2014-08-22 | A kind of temperature of transformer winding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104142188B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467965A (en) * | 2020-10-26 | 2021-03-09 | 苏州浪潮智能科技有限公司 | Temperature control method, device and system of multiphase power supply and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949745A (en) * | 2010-09-08 | 2011-01-19 | 国网电力科学研究院武汉南瑞有限责任公司 | Monitoring system of internal temperature and stress of power transformer winding and monitoring method thereof |
| CN202221693U (en) * | 2011-08-22 | 2012-05-16 | 三变科技股份有限公司 | Fiber temperature measurement transformer |
| CN204007932U (en) * | 2014-08-22 | 2014-12-10 | 国家电网公司 | A kind of temperature of transformer winding device |
-
2014
- 2014-08-22 CN CN201410416574.7A patent/CN104142188B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949745A (en) * | 2010-09-08 | 2011-01-19 | 国网电力科学研究院武汉南瑞有限责任公司 | Monitoring system of internal temperature and stress of power transformer winding and monitoring method thereof |
| CN202221693U (en) * | 2011-08-22 | 2012-05-16 | 三变科技股份有限公司 | Fiber temperature measurement transformer |
| CN204007932U (en) * | 2014-08-22 | 2014-12-10 | 国家电网公司 | A kind of temperature of transformer winding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467965A (en) * | 2020-10-26 | 2021-03-09 | 苏州浪潮智能科技有限公司 | Temperature control method, device and system of multiphase power supply and storage medium |
| CN112467965B (en) * | 2020-10-26 | 2022-05-06 | 苏州浪潮智能科技有限公司 | Temperature control method, device and system of multiphase power supply and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104142188B (en) | 2016-09-07 |
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