CN111370212A - Oil-immersed transformer - Google Patents
Oil-immersed transformer Download PDFInfo
- Publication number
- CN111370212A CN111370212A CN202010189948.1A CN202010189948A CN111370212A CN 111370212 A CN111370212 A CN 111370212A CN 202010189948 A CN202010189948 A CN 202010189948A CN 111370212 A CN111370212 A CN 111370212A
- Authority
- CN
- China
- Prior art keywords
- oil
- level gauge
- oil level
- groove
- pipe body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
-
- 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
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses an oil-immersed transformer, which comprises an oil storage tank and a cover plate arranged above the oil storage tank, wherein a detection device and a power supply for supplying power to the detection device are arranged on the cover plate, the detection device comprises an oil level gauge, a thermometer and a pressure release valve, the oil level gauge comprises a pipe body and a buoy arranged in the pipe body, the oil level gauge is outwards extended and provided with two installation seats on the outer wall of the pipe body, the two installation seats are respectively provided with a pressure sensor and a temperature sensor, the cover plate is provided with a groove for embedding the oil level gauge, heat-resistant silica gel is filled in the groove, the bottom wall of the groove is provided with a first through hole, a second through hole and a third through hole, the pressure release valve is fixedly arranged above the oil level gauge and is communicated with the oil storage tank through the pipe body of the oil level gauge, the thermometer. The oil-immersed transformer provided by the invention is convenient to install, convenient and fast to measure temperature, better in sealing performance and capable of effectively improving the safety performance.
Description
Technical Field
The invention designs an oil-immersed transformer.
Background
The oil-immersed transformer is a new type high-performance transformer with more reasonable structure and better performance, and uses oil as main insulating means of the transformer and depends on oil as cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation. The main parts of the transformer comprise an iron core, a winding, an oil tank, an oil conservator, a respirator, a pressure relief valve, a radiator, an insulating sleeve, a tap switch, a gas relay, a thermometer, an oil purifier, an oil level indicator and the like.
Traditional oil-immersed transformer carries out the measured mode to inside oil temperature through at oil-immersed transformer case lid welding one with the sleeve pipe of inside oil storage chamber intercommunication, and at intraductal grease of pouring into of cover, the temperature of oil storage intracavity passes through on the sleeve pipe transmits the intraductal grease of cover this moment, then stretch into the temperature of the intraductal grease of cover with the measurement sleeve through the thermometer, thereby obtain the temperature of oil storage intracavity, this kind of mode is complex operation not only, measuring error is big, and because through welded connection between sleeve pipe and the case lid, the oil leak phenomenon appears easily in the long-time use, lead to the oil storage chamber oil leak, and then easily cause the incident.
In addition, the pressure release valve and the oil level gauge on the oil-immersed transformer are both opened on the tank cover, and the pressure release valve and the oil level gauge are fixed on the tank cover through a flange plate connecting structure at the opening position or are fixed at the opening position in a welding mode, so that the pressure release valve and the oil level gauge are fixedly arranged on the tank cover. The design has poor sealing performance and troublesome installation, and the arrangement of the pressure relief valve and the oil level gauge increases leakage points on the tank cover, so that the probability of oil leakage is improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the oil-immersed transformer which is convenient to install, convenient and fast to measure the temperature, better in sealing performance and capable of effectively improving the safety performance.
In order to achieve the purpose, the invention adopts the technical scheme that: an oil-immersed transformer comprises an oil storage tank and an cover plate arranged above the oil storage tank, wherein a detection device and a power supply used for supplying power to the detection device are arranged on the cover plate, the detection device comprises an oil level gauge, a thermometer and a pressure release valve, the oil level gauge comprises a pipe body and a buoy arranged inside the pipe body, the oil level gauge is outwards extended from the outer wall of the pipe body and provided with two installation seats, the two installation seats are respectively provided with a pressure sensor and a temperature sensor, the pressure sensor is in electrical signal connection with the pressure release valve, the temperature sensor is in electrical signal connection with the thermometer, the cover plate is provided with a groove used for embedding the oil level gauge, the groove is internally filled with heat-resistant silica gel, the bottom wall of the groove is provided with a first through hole used for inserting the buoy of the oil level gauge into the oil storage tank, a second through hole used for inserting the pressure sensor into the oil storage tank and a third through hole used, the pressure release valve is fixedly arranged above the oil level gauge and communicated with the oil storage tank through the oil level gauge pipe body, the thermometer is fixedly arranged above the pressure release valve, and the pressure sensor and the temperature sensor are both electrically connected with the power supply.
As a further arrangement of the invention, a sealing gasket is arranged between the groove and the oil level gauge, and the sealing gasket is matched with the shape and the size of the groove.
As a further arrangement of the invention, the power supply is a photovoltaic power supply.
The technical effect that can reach through adopting above-mentioned scheme is: the oil level, the temperature and the pressure can be detected respectively through the detection device arranged on the cover plate, more detection data are provided, and the safety performance is improved. And the pressure release valve sets up in oil level gaugember top, through the inside intercommunication of body and the batch oil tank of oil level gaugember, when the batch oil tank internal pressure was too big, pressure sensor sensed pressure too big, and then made the pressure release valve open, and the pressure that goes out in the oil tank this moment can be followed the body and passed through the pressure release valve release, has further improved the security performance. In addition, set up the thermometer in pressure release valve top to through the oil temperature of temperature sensor response batch oil tank, can implement the response oil temperature, detect the oil temperature, it is more convenient that prior art is compared to the measuring means, and intelligent degree is higher. The oil level gaugember, pressure relief valve and thermometer three unification are established on the apron, can reduce the leakage point of apron, and this scheme is through setting up the recess on the apron, inlays the oil level gaugember in the recess to seal the processing simultaneously through pouring heat-resisting silica gel in the recess to first through-hole, second through-hole and third through-hole, effectively improved sealing performance. In addition, in order to further improve the sealing performance, a sealing gasket can be filled in the groove when the oil level gauge is embedded, so that the sealing performance is further improved. The power of adopting in this scheme is photovoltaic power, and it has passive wireless having a bit, is about to light energy transformation electric energy, can reach the purpose of long-time incessant detection.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic exterior view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic external view of a detecting device according to an embodiment of the present invention.
Detailed Description
Detailed description of the inventionas shown in fig. 1 to 4, an oil-immersed transformer includes an oil storage tank 1 and a cover plate 2 disposed above the oil storage tank 1, the cover plate 2 is provided with a detection device 3 and a power supply 4 for supplying power to the detection device 3, the detection device 3 includes an oil level gauge 31, a thermometer 32 and a pressure relief valve 33, the oil level gauge 31 includes a tube 311 and a float 312 disposed inside the tube 311, wherein an observation window 313 for observing an oil level is further disposed at an upper end of a side wall of the tube 311, the oil level gauge 31 is provided with two mounting seats 314 extending outward from an outer wall of the tube 311, the two mounting seats 314 are respectively provided with a pressure sensor 331 and a temperature sensor 321, the pressure sensor 331 is electrically connected to the pressure relief valve 33, the temperature sensor 321 is electrically connected to the thermometer 32, the cover plate 2 is provided with a groove 21 for embedding the oil level gauge 31, the recess 21 is filled with heat-resistant silicone (not shown), the bottom wall of the recess 21 is provided with a first through hole 211 for inserting and extending the float 312 of the oil level gauge 31 into the oil storage tank 1, a second through hole 212 for inserting and extending the pressure sensor 331 into the oil storage tank 1, and a third through hole 213 for inserting and extending the temperature sensor 321 into the oil storage tank 1, the pressure relief valve 33 is fixedly installed above the oil level gauge 31 and is communicated with the oil storage tank 1 through the pipe body 311 of the oil level gauge 31 (namely, the interface of the pressure relief valve 33 is in sealed connection with the pipe body and then can be communicated with the inside of the oil storage tank 1), the pressure relief port 332 of the pressure relief valve 33 is disposed on the sidewall of the pressure relief valve 33, the thermometer 32 is fixedly mounted above the pressure relief valve 33, the pressure sensor 331 and the temperature sensor 321 are both electrically connected to the power source 4.
In this embodiment, the two mounting seats 314 are symmetrically disposed on two sides of the tube 311, which is to facilitate the installation and reduce signal interference between the sensors to some extent.
In this embodiment, a gasket 5 is disposed between the groove 21 and the oil level gauge 31, and the gasket 5 is adapted to the shape and size of the groove 21.
The power 4 is a photovoltaic power supply, and the upper end face of the photovoltaic power supply is provided with a photovoltaic panel 41 for absorbing light energy.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention.
Claims (3)
1. The utility model provides an oil-immersed transformer, includes the batch oil tank and sets up the apron in the batch oil tank top, its characterized in that: the cover plate is provided with a detection device and a power supply for supplying power to the detection device, the detection device comprises an oil level gauge, a thermometer and a pressure release valve, the oil level gauge comprises a pipe body and a buoy arranged in the pipe body, the oil level gauge is outwards extended from the outer wall of the pipe body and provided with two mounting seats, a pressure sensor and a temperature sensor are respectively arranged on the two mounting seats, the pressure sensor is in electrical signal connection with the pressure release valve, the temperature sensor is in electrical signal connection with the thermometer, the cover plate is provided with a groove for embedding the oil level gauge, heat-resistant silica gel is filled in the groove, the bottom wall of the groove is provided with a first through hole for inserting the buoy of the oil level gauge into the oil storage tank, a second through hole for inserting the pressure sensor into the oil storage tank and a third through hole for inserting the temperature sensor into the oil storage tank, the pressure release valve is fixedly arranged above the oil level gauge and communicated with the oil storage tank through the oil level gauge pipe body, the thermometer is fixedly arranged above the pressure release valve, and the pressure sensor and the temperature sensor are both electrically connected with the power supply.
2. Oil filled transformer according to claim 1, characterized in that: and a sealing gasket is arranged between the groove and the oil level gauge, and the shape and the size of the sealing gasket are matched with those of the groove.
3. Oil filled transformer according to claim 1, characterized in that: the power supply is a photovoltaic power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189948.1A CN111370212A (en) | 2020-03-18 | 2020-03-18 | Oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189948.1A CN111370212A (en) | 2020-03-18 | 2020-03-18 | Oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111370212A true CN111370212A (en) | 2020-07-03 |
Family
ID=71210567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010189948.1A Pending CN111370212A (en) | 2020-03-18 | 2020-03-18 | Oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111370212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498316A (en) * | 2022-01-19 | 2022-05-13 | 巨邦集团有限公司 | Transformer monitoring system and cloud control box-type substation |
-
2020
- 2020-03-18 CN CN202010189948.1A patent/CN111370212A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498316A (en) * | 2022-01-19 | 2022-05-13 | 巨邦集团有限公司 | Transformer monitoring system and cloud control box-type substation |
| CN114498316B (en) * | 2022-01-19 | 2022-11-08 | 巨邦集团有限公司 | Transformer monitoring system and cloud control box-type substation |
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