CN115116719A - Oil plug detection device for power transformer - Google Patents
Oil plug detection device for power transformer Download PDFInfo
- Publication number
- CN115116719A CN115116719A CN202210714997.1A CN202210714997A CN115116719A CN 115116719 A CN115116719 A CN 115116719A CN 202210714997 A CN202210714997 A CN 202210714997A CN 115116719 A CN115116719 A CN 115116719A
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- China
- Prior art keywords
- temperature
- power transformer
- transformer
- heat dissipation
- oil
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- 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
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- 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
- H01F27/08—Cooling; Ventilating
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- 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
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
-
- 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
- H01F2027/406—Temperature sensor or protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Protection Of Transformers (AREA)
Abstract
The invention provides an oil plug detection device for a power transformer, which structurally comprises: the device comprises a power transformer body provided with a heat dissipation strip, a heat dissipation strip temperature monitoring system, a transformer oil temperature detection device, a management system and a control system, wherein the management system and the control system are arranged in a control room. The invention can accurately judge whether the oil plug at the heat dissipation strip in each power transformer influences the operation of the power transformer.
Description
Technical Field
The invention belongs to the technical field of electric power, and relates to an oil plug detection device for a power transformer.
Background
At present, in the transformer substation, through the mode of transformer oil a plurality of heat dissipation strip inner loop on transformer body, make the transformer reach the effect of cooling, transformer oil forms the embolism easily after a period of time and is "the oil plug".
The oil plug has great harm to the transformer, the formation of the oil plug can weaken the heat dissipation effect of the transformer and shorten the service life of the transformer, the oil plug is attached to the heat dissipation strip to reduce the contact surface between the heat radiator and the transformer oil, so that the heat dissipation efficiency of the transformer oil is reduced, the transformer accident is easily caused, and the power loss of a user is caused.
The number of power transformers in a transformer substation cannot accurately judge whether the oil plug at the heat dissipation strip in each power transformer affects the operation of the power transformer, so that a monitoring device is needed for estimating the content of the oil plug on the heat dissipation strip in the power transformer.
Disclosure of Invention
In order to solve the above problems, the invention provides a device for detecting oil slugs in a power transformer, which can determine whether the content of the oil slugs at the heat dissipation strips inside a plurality of power transformers affects the normal operation of the power transformers.
The invention provides an oil plug detection device for a power transformer, which structurally comprises:
the power transformer comprises a power transformer body provided with a heat dissipation strip, wherein the upper end of the power transformer body is provided with a plurality of temperature detection holes, and the heat dissipation strip is in contact with transformer oil in the power transformer and is used for reducing the temperature of the power transformer oil;
the heat dissipation strip temperature monitoring system is used for monitoring the temperature of a heat dissipation strip in the power transformer;
the transformer oil temperature detection device comprises a metal rod body with a cylindrical structure, the metal rod body is arranged in a temperature detection hole in the upper end of the power transformer body, and the bottom of the metal rod is provided with a temperature detection sensor for detecting the temperature value of transformer oil in the power transformer;
a management system installed in the control room, the management system having a communication module;
the control system comprises an operation panel, a signal detection module and a communication module, wherein the operation panel has the functions of setting parameter values and displaying parameter values, the signal detection module is connected with a temperature detection sensor in the heat dissipation strip temperature monitoring system and the transformer oil temperature detection device, and the communication module establishes remote communication with the management system.
The heat dissipation strip temperature monitoring system further comprises a temperature sensing device, the temperature value of the radiator can be monitored in real time, the temperature sensing device is further provided with a signal transmission end, and the signal transmission end is connected with a signal detection module of the control system through a connecting wire, so that the control system can receive the temperature parameter value detected by the heat dissipation strip temperature monitoring system.
Further after the transformer oil temperature detection device is installed on the power transformer body, the temperature detection sensor at the bottom can detect the temperature parameter value of the transformer oil in the power transformer in real time, the temperature detection sensor is further provided with a signal transmission end, and the signal transmission end is connected with a signal detection module of the control system through a connecting wire, so that the control system can receive the temperature parameter value in the temperature detection sensor.
Furthermore, an internal thread through hole is formed in a temperature detection hole in the upper end of the power transformer body, so that the transformer oil temperature detection device can be conveniently taken out of the power transformer.
Further the upper end of the metal rod body is provided with an external thread, the external thread is connected with an internal thread at a temperature detection hole at the upper end of the power transformer body, and the position of the temperature detection sensor at the bottom of the metal rod in the power transformer is adjusted by rotating the metal rod.
And further, after receiving real-time temperature parameter values of temperature detection sensors in the heat dissipation strip temperature monitoring system and the transformer oil temperature detection device, the control system collects the two groups of parameter values and transmits the two groups of parameter values to the management system.
The management system further compiles the two groups of parameter values into a table according to time, the table can count the temperature difference between the two groups of parameter values, and whether the heat dissipation strip can dissipate the transformer oil in the transformer or not is judged according to the temperature difference between the two groups of parameter values in the table, so that whether the oil slug on the surface of the heat radiator affects the heat dissipation of the power transformer or not is judged.
The invention has the beneficial effects that: firstly, replacing the transformer oil temperature detection device in time to ensure that an oil plug is not contaminated at the temperature detection end of the transformer oil temperature detection device and the temperature value of the transformer oil in the power transformer body can be accurately measured; the second, the temperature detection device of installation in a plurality of temperature detection holes on the power transformer body, can detect the temperature value of the inside each department transformer oil of power transformer, and the third, control system detects the temperature value that temperature detection device detected and heat dissipation strip temperature monitoring system detect the temperature value and compare, can judge that the heat dissipation strip carries out radiating efficiency with the temperature of transformer oil, according to long-time data reference, judge the size of heat dissipation strip oily bolt on the surface.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an oil plug detection device for a power transformer according to the present invention;
fig. 2 is a schematic structural diagram of a transformer oil temperature detection device in an oil plug detection device for a power transformer.
In the figure: 1. a power transformer body; 2. a heat dissipating strip; 3. a temperature detection hole; 4. a heat sink strip temperature monitoring system; 5. a transformer oil temperature detection device; 6. a management system; 7. a control system; 8. a metal rod body.
Detailed Description
The following describes in detail an embodiment of an oil plug detection device for a power transformer according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides an oil plug detection device for a power transformer, which comprises:
the power transformer comprises a power transformer body 1 provided with heat dissipation strips 2, wherein the upper end of the power transformer body is provided with a plurality of temperature detection holes 3, and the heat dissipation strips 2 on the power transformer body 1 are in contact with transformer oil in the power transformer and used for reducing the temperature of the power transformer oil;
the heat dissipation strip temperature monitoring system 4 is used for monitoring the temperature of the heat dissipation strip 2 in the power transformer;
as shown in fig. 2, the transformer oil temperature detection device 5 includes a metal rod 8 having a cylindrical structure, the metal rod 8 is installed in a temperature detection hole 3 at the upper end of the power transformer body 1, and a temperature detection sensor is disposed at the bottom of the metal rod and used for detecting a temperature value of transformer oil in the power transformer;
a management system 6 installed in the control room, the management system 6 having a communication module;
the control system 7 comprises an operation panel, a signal detection module and a communication module, the operation panel has the functions of setting parameter values and displaying parameter values, the signal detection module is connected with temperature detection sensors in the heat dissipation strip temperature monitoring system 4 and the transformer oil temperature detection device 5, and the communication module establishes remote communication with the management system 6.
According to the above, the heat dissipation strip temperature monitoring system 4 includes a temperature sensing device capable of monitoring the temperature value of the heat sink in real time, and the temperature sensing device further includes a signal transmission end connected to the signal detection module of the control system 7 through a connection line, so that the control system 7 can receive the temperature parameter value detected by the heat dissipation strip temperature monitoring system 4.
According to the above, after the transformer oil temperature detection device 5 is installed on the power transformer body 1, the temperature detection sensor at the bottom can detect the temperature parameter value of the transformer oil in the power transformer in real time, and the temperature detection sensor also has a signal transmission end, and the signal transmission end is connected with the signal detection module of the control system 7 through a connection line, so that the control system 7 can receive the temperature parameter value in the temperature detection sensor.
As shown in fig. 2, an internal threaded through hole is further formed in the temperature detection hole 3 at the upper end of the power transformer body 1, so that the transformer oil temperature detection device 5 can be conveniently taken out of the power transformer.
According to the above, wherein the upper end of the metal rod body 8 is provided with an external thread, the external thread is connected with the internal thread at the position of the temperature detection hole 3 at the upper end of the power transformer body 1, and the position of the temperature detection sensor at the bottom of the metal rod in the power transformer is adjusted by rotating the metal rod.
According to the above, after receiving the real-time temperature parameter values of the temperature detection sensors in the heat dissipation strip temperature monitoring system 4 and the transformer oil temperature detection device 5, the control system 7 summarizes the two sets of parameter values and transmits the two sets of parameter values to the management system 6.
According to the above, the management system 6 compiles the two sets of parameter values into a table according to time, the table can count the temperature difference between the two sets of parameter values, and according to the temperature difference between the two sets of parameter values in the table, whether the heat dissipation strip 2 can dissipate the transformer oil in the transformer is judged, so as to judge whether the oil slug on the surface of the heat sink affects the heat dissipation of the power transformer.
The working principle of the oil plug detection device for the power transformer is as follows:
the control system 7 is connected to a plurality of power transformers, and the control system 7 can monitor the plurality of power transformers.
When the power transformer just runs, the control system 7 monitors the temperature of the transformer oil and the temperature of the heat dissipation strip 2, the monitored temperature is drawn into a table, and the heat dissipation efficiency of the heat dissipation strip 2 is evaluated.
The staff formulates work plan, plans to demolish transformer oil temperature-detecting device 5, clears away the oil plug on its surface, ensures that transformer oil temperature-detecting device 5 can accurately detect the temperature value of transformer oil.
Can detect the temperature value of transformer oil in the power transformer body 1 through transformer oil temperature-detecting device 5 to, this transformer oil temperature-detecting device 5 can control the ascending position of vertical direction in power transformer body 1, makes transformer oil temperature-detecting device 5 can detect the temperature value of each position in the 3 vertical directions in this temperature detection hole.
After power transformer operation a period, the oily plug of inside heat dissipation strip 2 surface adhesion influences transformer oil's heat dissipation function, and control system 7 is after the temperature in detecting power transformer body 1 this moment, compares with data between, judges whether its heat dissipation strip 2's radiating efficiency reduces, according to the change of radiating efficiency, estimates the oily plug thickness on its heat dissipation strip 2.
The control system 7 sends the thickness of the oil plug in the power transformer to the management system 6, and the worker finds the power transformer and removes the oil plug in the power transformer body, so that the power transformer can normally run.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A slug detection device for a power transformer, comprising:
the power transformer comprises a power transformer body provided with a heat dissipation strip, wherein the upper end of the power transformer body is provided with a plurality of temperature detection holes, and the heat dissipation strip is in contact with transformer oil in the power transformer and is used for reducing the temperature of the power transformer oil;
the heat dissipation strip temperature monitoring system is used for monitoring the temperature of a heat dissipation strip in the power transformer;
the transformer oil temperature detection device comprises a metal rod body with a cylindrical structure, the metal rod body is arranged in a temperature detection hole in the upper end of the power transformer body, and the bottom of the metal rod is provided with a temperature detection sensor for detecting the temperature value of transformer oil in the power transformer;
a management system installed in the control room, the management system having a communication module;
the control system comprises an operation panel, a signal detection module and a communication module, wherein the operation panel has the functions of setting parameter values and displaying parameter values, the signal detection module is connected with a temperature detection sensor in the heat dissipation strip temperature monitoring system and the transformer oil temperature detection device, and the communication module establishes remote communication with the management system.
2. The oil plug detection device for the power transformer as claimed in claim 1, wherein the heat dissipation strip temperature monitoring system comprises a temperature sensing device capable of monitoring the temperature value at the heat sink in real time, and the temperature sensing device further comprises a signal transmission terminal connected to the signal detection module of the control system through a connection line, so that the control system can receive the temperature parameter value detected by the heat dissipation strip temperature monitoring system.
3. The oil plug detection device for the power transformer as claimed in claim 2, wherein after the transformer oil temperature detection device is installed on the power transformer body, the bottom temperature detection sensor can detect the temperature parameter value of the transformer oil in the power transformer in real time, and the temperature detection sensor further has a signal transmission end, and the signal transmission end is connected with the signal detection module of the control system through a connection line, so that the control system can receive the temperature parameter value in the temperature detection sensor.
4. The oil plug detection device for the power transformer as claimed in claim 1, wherein the temperature detection hole at the upper end of the power transformer body is internally provided with an internally threaded through hole for facilitating the transformer oil temperature detection device to be taken out from the power transformer.
5. The apparatus as claimed in claim 4, wherein the metal rod body has an external thread at an upper end thereof, the external thread being connected to an internal thread at the temperature detecting hole at the upper end of the power transformer body, and the metal rod is rotated to adjust a position of the temperature detecting sensor at the bottom of the metal rod in the power transformer.
6. The oil plug detection device for the power transformer as claimed in claim 3, wherein the control system collects two sets of parameter values after receiving the real-time temperature parameter values of the temperature detection sensors in the heat dissipation strip temperature monitoring system and the transformer oil temperature detection device, and transmits the two sets of parameter values to the management system.
7. The device according to claim 6, wherein the management system compiles two sets of parameter values into a table according to time, the table can count the temperature difference between the two sets of parameter values, and determines whether the heat dissipation strip can dissipate the transformer oil inside the transformer according to the temperature difference between the two sets of parameter values in the table, thereby determining whether the oil plug on the surface of the heat sink affects the heat dissipation of the power transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714997.1A CN115116719A (en) | 2022-06-23 | 2022-06-23 | Oil plug detection device for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714997.1A CN115116719A (en) | 2022-06-23 | 2022-06-23 | Oil plug detection device for power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115116719A true CN115116719A (en) | 2022-09-27 |
Family
ID=83329166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210714997.1A Pending CN115116719A (en) | 2022-06-23 | 2022-06-23 | Oil plug detection device for power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115116719A (en) |
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2022
- 2022-06-23 CN CN202210714997.1A patent/CN115116719A/en active Pending
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