CN219842077U - Transformer temperature measurement system and transformer - Google Patents
Transformer temperature measurement system and transformer Download PDFInfo
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- CN219842077U CN219842077U CN202320582399.3U CN202320582399U CN219842077U CN 219842077 U CN219842077 U CN 219842077U CN 202320582399 U CN202320582399 U CN 202320582399U CN 219842077 U CN219842077 U CN 219842077U
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- 238000009529 body temperature measurement Methods 0.000 title claims description 17
- 239000000523 sample Substances 0.000 claims abstract description 201
- 239000013307 optical fiber Substances 0.000 claims abstract description 171
- 238000013500 data storage Methods 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000004861 thermometry Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model provides a temperature measuring system of a transformer and the transformer, the temperature measuring system of the transformer comprises: the data acquisition module comprises a plurality of optical fiber temperature sensing probes which are arranged at a plurality of positions to be tested in an oil tank of the transformer in a one-to-one correspondence manner; the optical fiber temperature sensing probes are connected with the data storage module through the data transmission module so as to transmit measured temperature data to the data storage module through the data transmission module; the state monitoring module is connected with the data storage module to read the temperature data stored in the data storage module and judge whether the temperature data is higher than a preset temperature; the abnormal alarm module is connected with the state monitoring module to give an alarm when the state monitoring module judges that the temperature data is higher than the preset temperature, and the transformer temperature measuring system, the transformer and the transformer temperature measuring method are used for solving the problem that a system for rapidly and accurately measuring the temperature state of each part inside the transformer is not available in the prior art.
Description
Technical Field
The utility model relates to the technical field of oil immersed power transformers, in particular to a transformer temperature measurement system and a transformer.
Background
The power transformer is used as one of the core devices of a modern power system, and the thermal fault of the transformer is one of the most common fault types in the operation process of the power transformer, so that the monitoring of the internal temperature in the operation process of the power transformer is very important. The temperature of the insulating oil in the transformer oil tank can change in real time along with the running state of the insulating oil, and after the natural ester insulating oil is adopted to replace the traditional mineral insulating oil, the heat dissipation of the transformer oil tank is influenced due to the high viscosity of the natural ester insulating oil, so that the temperature field in the transformer oil tank fluctuates in real time. The temperature of the internal winding of the transformer determines the insulation performance and service life aging of the insulation part, when the winding temperature is too high, the aging of the insulation part in the transformer can be accelerated, the practical service life of the transformer is reduced, the safety operation of the whole power system is endangered, and when the winding temperature is too low, the load capacity of the transformer can be influenced. It becomes particularly important to monitor the entire temperature of the transformer.
With the development of smart power grids and optical fiber technologies, the optical fiber temperature measurement technology has strong anti-interference capability and high sensitivity, and is widely applied to temperature measurement of transformers. However, the temperature measurement mode of the existing natural ester insulating oil transformer is mainly aimed at the oil temperature inside the transformer or each specific part of the winding, the temperature of the iron core clamping piece is rarely measured, the temperature inside the oil tank is not monitored in an omnibearing way, and the running state of the transformer cannot be accurately reflected. Furthermore, the temperature measured by the transformer is not recorded, archived and analyzed, and the temperature state thereof is not monitored in real time. Therefore, how to quickly and accurately measure the temperature state of each part inside the transformer, alarm abnormal temperature, locate the position with overhigh temperature according to abnormal data, and make a maintenance decision in time is a difficulty of solving the utility model patent.
Disclosure of Invention
The utility model mainly aims to provide a transformer temperature measurement system and a transformer, which are used for solving the problem that a system for rapidly and accurately measuring the temperature state of each part inside the transformer is not available in the prior art.
To achieve the above object, according to one aspect of the present utility model, there is provided a transformer temperature measurement system comprising: the data acquisition module comprises a plurality of optical fiber temperature sensing probes which are arranged at a plurality of positions to be tested in an oil tank of the transformer in a one-to-one correspondence manner; the optical fiber temperature sensing probes are connected with the data storage module through the data transmission module so as to transmit measured temperature data to the data storage module through the data transmission module; the state monitoring module is connected with the data storage module to read the temperature data stored in the data storage module and judge whether the temperature data is higher than a preset temperature; the abnormal alarm module is connected with the state monitoring module and used for giving an alarm when the state monitoring module judges that the temperature data is higher than the preset temperature.
Further, the plurality of fiber optic temperature sensing probes includes: the first optical fiber temperature sensing probe and the second optical fiber temperature sensing probe are arranged on a low-voltage coil of the transformer at intervals; and/or a third optical fiber temperature sensing probe and a fourth optical fiber temperature sensing probe which are arranged on the medium-voltage coil of the transformer at intervals; and/or a fifth optical fiber temperature sensing probe and a sixth optical fiber temperature sensing probe, wherein the fifth optical fiber temperature sensing probe and the sixth optical fiber temperature sensing probe are arranged on a high-voltage coil of the transformer at intervals; and/or a seventh optical fiber temperature sensing probe and an eighth optical fiber temperature sensing probe, wherein the seventh optical fiber temperature sensing probe and the eighth optical fiber temperature sensing probe are arranged on the voltage regulating coil of the transformer at intervals; and/or a ninth optical fiber temperature sensing probe and a tenth optical fiber temperature sensing probe, wherein the ninth optical fiber temperature sensing probe and the tenth optical fiber temperature sensing probe are arranged on a reactor coil of the transformer at intervals; and/or an eleventh optical fiber temperature sensing probe which is arranged at an oil outlet of the medium-voltage coil of the transformer; and/or a twelfth optical fiber temperature sensing probe which is arranged at an oil outlet of the high-voltage coil of the transformer; and/or a thirteenth optical fiber temperature sensing probe, the thirteenth optical fiber temperature sensing probe is arranged at the oil surface of the transformer; and/or a fourteenth optical fiber temperature sensing probe which is arranged in an iron core oil duct of the transformer; and/or a fifteenth optical fiber temperature sensing probe, the fifteenth optical fiber temperature sensing probe is arranged at the upper surface of the iron core of the transformer; and/or a sixteenth optical fiber temperature sensing probe, wherein the sixteenth optical fiber temperature sensing probe is arranged at a hot spot of a clamping piece on the iron core clamping piece of the transformer.
According to another aspect of the present utility model, there is provided a transformer adapted for the above-mentioned transformer temperature measuring system, the transformer including an optical fiber temperature sensing probe fixing plate, the optical fiber temperature sensing probe being mounted at a position to be measured through the optical fiber temperature sensing probe fixing plate, the optical fiber temperature sensing probe fixing plate being provided with: the probe mounting hole penetrates through the fixed plate thickness direction of the optical fiber temperature sensing probe and is arranged for mounting the probe of the optical fiber temperature sensing probe; the strip-shaped groove is connected with the probe mounting hole and penetrates through the width direction of the optical fiber temperature sensing probe fixing plate to be used for fixing the optical fiber of the optical fiber temperature sensing probe.
Further, the optical fiber temperature sensing probe fixed plate is connected with the position to be measured through a fastener, and the optical fiber temperature sensing probe fixed plate is provided with: the through hole is arranged at intervals with the probe mounting hole and used for allowing the fastener to pass through, a threaded hole used for being in threaded connection with the fastener is formed in the position to be tested, and one end of the fastener passes through the through hole and is then in threaded connection with the threaded hole.
Further, the optical fiber temperature sensing probe fixing plate is connected with the position to be measured through two fasteners, wherein the number of the through holes is two, the two through holes are arranged at intervals along the length direction of the optical fiber temperature sensing probe fixing plate and are respectively positioned on two opposite sides of the probe mounting hole, the number of the threaded holes is also two, and the two threaded holes and the two through holes are respectively arranged in one-to-one correspondence with the two fasteners.
Further, the position to be measured comprises an iron core clamping piece, and the optical fiber temperature sensing probe fixing plate is connected with the iron core clamping piece through a fastener.
Further, the bar-shaped groove comprises two groove sections positioned on two opposite sides of the probe mounting hole, a first chamfer is arranged at the joint of one end of each groove section and the probe mounting hole, and a second chamfer is arranged at the joint of one end of each groove section and the edge of the optical fiber temperature sensing probe fixing plate.
Further, the extending direction of the strip-shaped groove and the width direction of the optical fiber temperature sensing probe fixing plate are arranged at an acute angle.
Further, the strip-shaped groove is arranged towards one side, far away from the position to be measured, of the optical fiber temperature sensing probe fixing plate, and the transformer temperature measurement system further comprises a cover plate, wherein the cover plate is arranged on one side, far away from the position to be measured, of the optical fiber temperature sensing probe fixing plate.
Further, the thickness of the cover plate was 2mm.
The utility model provides a transformer temperature measurement system, which comprises: the data acquisition module comprises a plurality of optical fiber temperature sensing probes which are arranged at a plurality of positions to be tested in an oil tank of the transformer in a one-to-one correspondence manner; the optical fiber temperature sensing probes are connected with the data storage module through the data transmission module so as to transmit measured temperature data to the data storage module through the data transmission module; the state monitoring module is connected with the data storage module to read the temperature data stored in the data storage module and judge whether the temperature data is higher than a preset temperature; the abnormal alarm module is connected with the state monitoring module and used for giving an alarm when the state monitoring module judges that the temperature data is higher than the preset temperature. In this way, the temperature measurement system of the transformer can utilize the temperature data acquired by the optical fiber probe in the data acquisition module to be transmitted to the data storage module through the data transmission module, and utilize the state monitoring module to read the stored data so as to draw a curve of the temperature change of each part along with time, so that operation and maintenance personnel can monitor the temperature state of the transformer remotely and in real time; the failure threshold (namely preset temperature) can be set in the abnormal alarm module according to historical experience, when the real-time temperature data value exceeds the threshold, the abnormal alarm module can send out alarm signals, after receiving the alarm signals, operation and maintenance personnel can check temperature curves of different measuring points through the state monitoring module, the position of the excessive temperature is judged and is processed in time, and maintenance decision is made, so that the problem that a system for rapidly and accurately measuring the temperature state of each part inside the transformer is not available in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 shows a schematic diagram of an embodiment of a transformer thermometry system according to the utility model;
fig. 2 shows a schematic structural view of an embodiment of a transformer according to the utility model in one direction;
FIG. 3 shows a partial enlarged view of the embodiment of the transformer shown in FIG. 2 at A;
FIG. 4 shows a partial enlarged view of the embodiment of the transformer shown in FIG. 2 at B;
FIG. 5 shows a partial enlarged view of the embodiment of the transformer shown in FIG. 2 at C;
FIG. 6 shows a front view of a fiber optic temperature sensing probe mount plate of the transformer shown in FIG. 2;
FIG. 7 shows a side view of a fiber optic temperature sensing probe mount plate of the transformer shown in FIG. 2;
fig. 8 shows a schematic structural diagram of an embodiment of a transformer according to the utility model in another direction.
Wherein the above figures include the following reference numerals:
100. a data acquisition module; 200. a data transmission module; 300. a data storage module; 400. a state monitoring module; 500. an abnormality alarm module;
1. a first optical fiber temperature sensing probe; 2. a second optical fiber temperature sensing probe; 3. a third optical fiber temperature sensing probe; 4. a fourth optical fiber temperature sensing probe; 5. a fifth optical fiber temperature sensing probe; 6. a sixth fiber optic temperature sensing probe; 7. a seventh fiber optic temperature sensing probe; 8. an eighth optical fiber temperature sensing probe; 9. a ninth optical fiber temperature sensing probe; 10. a tenth optical fiber temperature sensing probe; 11. an eleventh optical fiber temperature sensing probe; 12. a twelfth optical fiber temperature sensing probe; 13. thirteenth optical fiber temperature sensing probe; 14. a fourteenth optical fiber temperature sensing probe; 15. a fifteenth optical fiber temperature sensing probe; 16. sixteenth optical fiber temperature sensing probe;
600. an optical fiber temperature sensing probe fixing plate; 610. a probe mounting hole; 620. a strip-shaped groove; 621. a trough section; 630. a through hole; 700. and the iron core clamping piece.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 8, the present utility model provides a temperature measurement system of a transformer, comprising: the data acquisition module 100 comprises a plurality of optical fiber temperature sensing probes which are arranged at a plurality of positions to be tested in an oil tank of the transformer in a one-to-one correspondence manner; the data transmission module 200 and the data storage module 300 are connected with the data storage module 300 through the data transmission module 200 by each optical fiber temperature sensing probe so as to transmit measured temperature data to the data storage module 300 through the data transmission module 200; the state monitoring module 400 is connected with the data storage module 300 to read the temperature data stored in the data storage module 300 and judge whether the temperature data is higher than a preset temperature; the abnormal alarm module 500 is connected with the state monitoring module 400, so that when the state monitoring module 400 judges that the temperature data is higher than the preset temperature, the abnormal alarm module 500 gives an alarm.
In this way, the temperature measurement system of the transformer can utilize the temperature data acquired by the optical fiber probe in the data acquisition module 100 to be transmitted to the data storage module 300 through the data transmission module 200, and utilize the state monitoring module 400 to read the stored data so as to draw a curve of the temperature change of each part along with time, so that an operation and maintenance person can monitor the temperature state of the transformer remotely and in real time; the failure threshold (i.e. preset temperature) can be set in the abnormal alarm module 500 according to historical experience, when the real-time temperature data value exceeds the threshold, the abnormal alarm module 500 can send out an alarm signal, after receiving the alarm signal, an operation and maintenance person can check the temperature curves of different measuring points through the state monitoring module, judge the position with overhigh temperature and process in time, and make maintenance decisions, so that the problem that a system for quickly and accurately measuring the temperature state of each part inside the transformer is not available in the prior art is solved.
Specifically, when the temperature change conditions of transformers with different capacities and different voltage levels are different and the failure threshold value giving out a temperature alarm is set, specific analysis and calculation are required to be performed according to the transformers with different voltage levels, and the failure threshold value of each transformer is often different.
The temperature measuring system of the transformer can be suitable for real-time monitoring of the temperature of all oil immersed transformers.
As shown in fig. 2 to 8, in order to measure the temperatures of the oil, windings, core and core clamp inside the transformer at all-around fixed points, a plurality of optical fiber temperature sensing probes include: the first optical fiber temperature sensing probe 1 is arranged between the 38.1 section and the 38.2 section of the low-voltage coil C phase of the transformer; the second optical fiber temperature sensing probe 2 is arranged between the 38.2 section and the 38.3 section of the low-voltage coil C phase of the transformer; the third optical fiber temperature sensing probe 3 is arranged between 102-103 sections of the Cm phase of the medium-voltage coil of the transformer; the fourth optical fiber temperature sensing probe 4 is arranged between 103 sections and 104 sections of the Cm phase of the medium-voltage coil of the transformer; the fifth optical fiber temperature sensing probe 5 is arranged between the 114 section and the 115 section of the high-voltage coil C phase of the transformer; the sixth optical fiber temperature sensing probe 6 is arranged between the 115 sections and the 116 sections of the high-voltage coil C phase of the transformer; the seventh optical fiber temperature sensing probe 7 is arranged between the 1 st section and the 2 nd section of the upper voltage regulating coil of the C phase of the voltage regulating coil of the transformer; the eighth optical fiber temperature sensing probe 8 is arranged between the 2 nd section and the 3 rd section of the upper voltage regulating coil of the C phase of the voltage regulating coil of the transformer; a ninth optical fiber temperature sensing probe 9, wherein the ninth optical fiber temperature sensing probe 9 is arranged between the 1 st section and the 2 nd section of the uppermost part of the C-phase coil of the reactor coil of the transformer; a tenth optical fiber temperature sensing probe 10, wherein the tenth optical fiber temperature sensing probe 10 is arranged between the 2 nd section and the 3 rd section of the uppermost part of the C-phase coil of the reactor coil of the transformer; an eleventh optical fiber temperature sensing probe 11, wherein the eleventh optical fiber temperature sensing probe 11 is arranged at an oil outlet of a medium-voltage coil of the transformer; a twelfth optical fiber temperature sensing probe 12, wherein the twelfth optical fiber temperature sensing probe 12 is arranged at an oil outlet of the high-voltage coil of the transformer; a thirteenth optical fiber temperature sensing probe 13, wherein the thirteenth optical fiber temperature sensing probe 13 is arranged at the oil surface of the transformer; a fourteenth optical fiber temperature sensing probe 14, wherein the fourteenth optical fiber temperature sensing probe 14 is arranged in an iron core oil duct of the transformer; a fifteenth optical fiber temperature sensing probe 15, the fifteenth optical fiber temperature sensing probe 15 being disposed at an upper surface of an iron core of the transformer; sixteenth fiber optic temperature sensing probe 16, sixteenth fiber optic temperature sensing probe 16 is disposed at a clip hot spot on core clip 700 of the transformer.
Specifically, taking the average value of the detection results of the first optical fiber temperature sensing probe 1 and the second optical fiber temperature sensing probe 2 as the temperature of the low-voltage coil of the transformer; taking the average value of the detection results of the third optical fiber temperature sensing probe 3 and the fourth optical fiber temperature sensing probe 4 as the temperature of a medium-voltage coil of the transformer; taking the average value of the detection results of the fifth optical fiber temperature sensing probe 5 and the sixth optical fiber temperature sensing probe 6 as the temperature of the high-voltage coil of the transformer; taking the average value of the detection results of the seventh optical fiber temperature sensing probe 7 and the eighth optical fiber temperature sensing probe 8 as the temperature of the voltage regulating coil of the transformer; the average value of the detection results of the ninth and tenth optical fiber temperature sensing probes 9 and 10 is taken as the temperature of the reactor coil of the transformer.
As shown in fig. 2 to 8, the present utility model provides a transformer, which is suitable for the above-mentioned transformer temperature measuring system, the transformer includes an optical fiber temperature sensing probe fixing plate 600, the optical fiber temperature sensing probe is installed at a position to be measured through the optical fiber temperature sensing probe fixing plate 600, and the optical fiber temperature sensing probe fixing plate 600 is provided with: the probe mounting hole 610, the probe mounting hole 610 penetrates through the thickness direction of the optical fiber temperature sensing probe fixing plate 600 to be used for mounting the probe of the optical fiber temperature sensing probe; the bar-shaped groove 620 is connected with the probe mounting hole 610 and is provided through the width direction of the optical fiber temperature sensing probe fixing plate 600 for fixing the optical fiber of the optical fiber temperature sensing probe.
The optical fiber temperature sensing probe fixing plate 600 is connected with a position to be measured through a fastener, and the optical fiber temperature sensing probe fixing plate 600 is provided with: the through hole 630, the through hole 630 and the probe mounting hole 610 are arranged at intervals for the fastener to pass through, the position to be measured is provided with a threaded hole for being in threaded connection with the fastener, and one end of the fastener passes through the through hole 630 and is in threaded connection with the threaded hole.
Specifically, the optical fiber temperature sensing probe fixing plate 600 is connected with the position to be measured by two fasteners, wherein the number of the through holes 630 is two, the two through holes 630 are arranged at intervals along the length direction of the optical fiber temperature sensing probe fixing plate 600 and are respectively located at two opposite sides of the probe mounting hole 610, the number of the threaded holes is also two, and the two threaded holes and the two through holes 630 are respectively arranged in one-to-one correspondence with the two fasteners.
As shown in fig. 2 to 8, the position to be measured includes a core clamp 700, and the optical fiber temperature sensing probe fixing plate 600 is connected to the core clamp 700 by a fastener.
As shown in fig. 2 to 8, the bar-shaped groove 620 includes two groove segments 621 located at opposite sides of the probe mounting hole 610, a first chamfer is provided at a junction of one end of each groove segment 621 with the probe mounting hole 610, and a second chamfer is provided at a junction of one end of each groove segment 621 with an edge of the optical fiber temperature sensing probe fixing plate 600.
As shown in fig. 5 to 7, the extending direction of the bar-shaped groove 620 is disposed at an acute angle with the width direction of the optical fiber temperature sensing probe fixing plate 600.
Preferably, the bar-shaped groove 620 is disposed toward one side of the optical fiber temperature sensing probe fixing plate 600, which is far away from the position to be measured, and the transformer temperature measuring system further includes a cover plate, which is disposed at one side of the optical fiber temperature sensing probe fixing plate 600, which is far away from the position to be measured, to insulate and protect the optical fiber temperature sensing probe.
Further preferably, the cover plate is a laminated wood plate having a thickness of 2mm.
Specifically, the temperature measurement system of the transformer is mainly applied to the development process of a prototype of a large-capacity natural ester insulating oil power transformer research and development project, the capacity of the transformer is 240000kVA, and the voltage class is 220kV.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the utility model provides a temperature measurement system of a transformer, which comprises: the data acquisition module 100 comprises a plurality of optical fiber temperature sensing probes which are arranged at a plurality of positions to be tested in an oil tank of the transformer in a one-to-one correspondence manner; the data transmission module 200 and the data storage module 300 are connected with the data storage module 300 through the data transmission module 200 by each optical fiber temperature sensing probe so as to transmit measured temperature data to the data storage module 300 through the data transmission module 200; the state monitoring module 400 is connected with the data storage module 300 to read the temperature data stored in the data storage module 300 and judge whether the temperature data is higher than a preset temperature; the abnormal alarm module 500 is connected with the state monitoring module 400, so that when the state monitoring module 400 judges that the temperature data is higher than the preset temperature, the abnormal alarm module 500 gives an alarm. In this way, the temperature measurement system of the transformer can utilize the temperature data acquired by the optical fiber probe in the data acquisition module 100 to be transmitted to the data storage module 300 through the data transmission module 200, and utilize the state monitoring module 400 to read the stored data so as to draw a curve of the temperature change of each part along with time, so that an operation and maintenance person can monitor the temperature state of the transformer remotely and in real time; the failure threshold (i.e. preset temperature) can be set in the abnormal alarm module 500 according to historical experience, when the real-time temperature data value exceeds the threshold, the abnormal alarm module 500 can send out an alarm signal, after receiving the alarm signal, an operation and maintenance person can check the temperature curves of different measuring points through the state monitoring module, judge the position with overhigh temperature and process in time, and make maintenance decisions, so that the problem that a system for quickly and accurately measuring the temperature state of each part inside the transformer is not available in the prior art is solved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A transformer thermometry system, comprising:
the data acquisition module (100) comprises a plurality of optical fiber temperature sensing probes which are arranged at a plurality of positions to be tested in an oil tank of the transformer in a one-to-one correspondence manner;
the optical fiber temperature sensing probes are connected with the data storage module (300) through the data transmission module (200) so as to transmit measured temperature data to the data storage module (300) through the data transmission module (200);
the state monitoring module (400) is connected with the data storage module (300) to read the temperature data stored in the data storage module (300) and judge whether the temperature data is higher than a preset temperature or not;
and the abnormality alarming module (500) is connected with the state monitoring module (400) so that the abnormality alarming module (500) gives an alarm when the state monitoring module (400) judges that the temperature data is higher than the preset temperature.
2. The transformer thermometry system of claim 1, wherein the plurality of fiber optic temperature sensing probes comprises:
the device comprises a first optical fiber temperature sensing probe (1) and a second optical fiber temperature sensing probe (2), wherein the first optical fiber temperature sensing probe (1) and the second optical fiber temperature sensing probe (2) are arranged on a low-voltage coil of the transformer at intervals; and/or
The third optical fiber temperature sensing probe (3) and the fourth optical fiber temperature sensing probe (4) are arranged on a medium-voltage coil of the transformer at intervals; and/or
A fifth optical fiber temperature sensing probe (5) and a sixth optical fiber temperature sensing probe (6), wherein the fifth optical fiber temperature sensing probe (5) and the sixth optical fiber temperature sensing probe (6) are arranged on a high-voltage coil of the transformer at intervals; and/or
A seventh optical fiber temperature sensing probe (7) and an eighth optical fiber temperature sensing probe (8), wherein the seventh optical fiber temperature sensing probe (7) and the eighth optical fiber temperature sensing probe (8) are arranged on a voltage regulating coil of the transformer at intervals; and/or
A ninth optical fiber temperature sensing probe (9) and a tenth optical fiber temperature sensing probe (10), wherein the ninth optical fiber temperature sensing probe (9) and the tenth optical fiber temperature sensing probe (10) are arranged on a reactor coil of the transformer at intervals; and/or
An eleventh optical fiber temperature sensing probe (11), wherein the eleventh optical fiber temperature sensing probe (11) is arranged at an oil outlet of a medium-voltage coil of the transformer; and/or
A twelfth optical fiber temperature sensing probe (12), wherein the twelfth optical fiber temperature sensing probe (12) is arranged at an oil outlet of a high-voltage coil of the transformer; and/or
A thirteenth optical fiber temperature sensing probe (13), wherein the thirteenth optical fiber temperature sensing probe (13) is arranged at the oil surface of the transformer; and/or
A fourteenth optical fiber temperature sensing probe (14), wherein the fourteenth optical fiber temperature sensing probe (14) is arranged in an iron core oil duct of the transformer; and/or
A fifteenth optical fiber temperature sensing probe (15), the fifteenth optical fiber temperature sensing probe (15) being disposed at an upper surface of an iron core of the transformer; and/or
A sixteenth optical fiber temperature sensing probe (16), wherein the sixteenth optical fiber temperature sensing probe (16) is arranged at a clamping piece hot spot on an iron core clamping piece (700) of the transformer.
3. A transformer, characterized in that it is suitable for the transformer temperature measurement system of claim 1 or 2, said transformer comprises an optical fiber temperature sensing probe fixing plate (600), said optical fiber temperature sensing probe is installed at the position to be measured by said optical fiber temperature sensing probe fixing plate (600), said optical fiber temperature sensing probe fixing plate (600) is provided with:
a probe mounting hole (610), wherein the probe mounting hole (610) penetrates through the thickness direction of the optical fiber temperature sensing probe fixing plate (600) to be used for mounting a probe of the optical fiber temperature sensing probe;
the strip-shaped groove (620) is connected with the probe mounting hole (610) and penetrates through the width direction of the optical fiber temperature sensing probe fixing plate (600) to be used for fixing the optical fiber of the optical fiber temperature sensing probe.
4. A transformer according to claim 3, wherein the optical fiber temperature sensing probe fixing plate (600) is connected with the position to be measured through a fastener, and the optical fiber temperature sensing probe fixing plate (600) is provided with: the through hole (630) is arranged at intervals with the probe mounting hole (610) and used for the fastener to pass through, a threaded hole used for being in threaded connection with the fastener is formed in the position to be tested, and one end of the fastener passes through the through hole (630) and then is in threaded connection with the threaded hole.
5. The transformer according to claim 4, wherein the fiber temperature sensing probe fixing plate (600) is connected with the position to be measured by two fasteners, wherein,
the number of the through holes (630) is two, the two through holes (630) are arranged at intervals along the length direction of the optical fiber temperature sensing probe fixing plate (600) and are respectively positioned on two opposite sides of the probe mounting hole (610), the number of the threaded holes is also two, and the two threaded holes and the two through holes (630) are respectively arranged in one-to-one correspondence with the two fasteners.
6. The transformer according to claim 4, wherein the position to be measured includes a core clamp (700), and the fiber optic temperature sensing probe fixing plate (600) is connected to the core clamp (700) by the fastener.
7. A transformer according to claim 3, wherein the bar-shaped groove (620) comprises two groove segments (621) located at opposite sides of the probe mounting hole (610), a first chamfer is provided at a connection of one end of each groove segment (621) with the probe mounting hole (610), and a second chamfer is provided at a connection of one end of each groove segment (621) with an edge of the optical fiber temperature sensing probe fixing plate (600).
8. A transformer according to claim 3, wherein the extending direction of the strip-shaped groove (620) is arranged at an acute angle to the width direction of the fiber optic temperature sensing probe fixing plate (600).
9. A transformer according to claim 3, wherein the strip-shaped groove (620) is arranged towards a side of the optical fiber temperature sensing probe fixing plate (600) which is far away from the position to be measured, and the transformer temperature measuring system further comprises a cover plate which is arranged on a side of the optical fiber temperature sensing probe fixing plate (600) which is far away from the position to be measured.
10. The transformer of claim 9, wherein the cover plate has a thickness of 2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320582399.3U CN219842077U (en) | 2023-03-21 | 2023-03-21 | Transformer temperature measurement system and transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582399.3U CN219842077U (en) | 2023-03-21 | 2023-03-21 | Transformer temperature measurement system and transformer |
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| CN219842077U true CN219842077U (en) | 2023-10-17 |
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