CN220020983U - Electronic quick-acting oil pressure relay - Google Patents
Electronic quick-acting oil pressure relay Download PDFInfo
- Publication number
- CN220020983U CN220020983U CN202320971265.0U CN202320971265U CN220020983U CN 220020983 U CN220020983 U CN 220020983U CN 202320971265 U CN202320971265 U CN 202320971265U CN 220020983 U CN220020983 U CN 220020983U
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- China
- Prior art keywords
- oil pressure
- pressure relay
- electronic quick
- transformer
- exhaust port
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 230000006870 function Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to an electronic quick-acting oil pressure relay which comprises a shell, wherein an exhaust port, a flange and an electrical interface are arranged on the shell, the exhaust port is connected with a three-way pipe, and the other two ports of the three-way pipe are respectively connected with a pressure sensor and a valve. According to the electronic quick-acting oil pressure relay, after the pressure sensor is additionally arranged, the oil pressure inside the transformer can be monitored in real time, the problems that oil leakage does not act on site at present and the like are solved, and accurate sensing of the actual running state of the transformer can be realized. The traditional mechanical protection is improved into an electronic type and mechanical type double-protection mode.
Description
Technical Field
The utility model relates to the field of relays for transformer protection, in particular to an electronic quick-acting oil pressure relay.
Background
The quick-acting oil pressure relay is used as a core component for protecting the transformer, and can reduce loss when the transformer breaks down. The quick-acting oil pressure relay is a protective relay which can quickly act and timely send out a signal when the pressure rising rate of transformer oil in an oil tank in unit time reaches the setting limit value of the transformer (reactor) and can lead the transformer to exit from an operating state.
The existing purely mechanical quick-acting oil pressure relay has some problems, such as false action of a joint, ageing and oil leakage of a sealing ring, untimely action, incapability of remote transmission of pressure information and hysteresis of acquisition of fault information. Often, major accidents occur, and after the quick-acting oil pressure relay acts, an electric operation maintainer can only find the accident. Therefore, an electronic quick-acting oil pressure relay is urgently needed at home and abroad, the problems can be solved, the real-time monitoring and recording of the oil pressure in the transformer can be realized, and the action process of the quick-acting relay can be recorded in the background, so that early discovery and early treatment are achieved, and further, larger loss is avoided.
Disclosure of Invention
The utility model aims to provide an electronic quick oil pressure relay which can realize real-time monitoring and recording of oil pressure in a transformer and can acquire fault information in time.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the electronic quick-acting oil pressure relay comprises a shell, wherein an exhaust port, a flange and an electrical interface are arranged on the shell, the exhaust port is connected with a three-way pipe, and the other two ports of the three-way pipe are respectively connected with a pressure sensor and a valve.
Further, the housing is made of a cast aluminum alloy.
Further, a vent is further formed in the shell and is used as a test port in test.
Further, the valve is a ball valve.
Further, the first pipe section of the three-way pipe is horizontally arranged, one end of the first pipe section is connected with the exhaust port, and the other end of the first pipe section is provided with the valve.
Further, a plurality of flange holes are formed in the periphery of the flange, and the flange holes are U-shaped holes.
The utility model has the beneficial effects that:
according to the electronic quick-acting oil pressure relay, after the pressure sensor is additionally arranged, the oil pressure inside the transformer can be monitored in real time, the problem that the existing on-site oil leakage does not act, the personal danger caused by the 'creepage' misoperation of the junction box is avoided, and the accurate perception of the actual running state of the transformer can be realized. The traditional mechanical protection is improved into an electronic type and mechanical type double-protection mode. After the pressure sensor is additionally arranged, the original exhaust function is not affected.
Drawings
Fig. 1 is a schematic diagram of the structure of the electronic quick-action hydraulic relay of the present utility model.
Name corresponding to each label in the figure:
1. a flange; 11. a flange hole; 2. an electrical interface; 3. a vent; 4. a housing; 5. a pressure sensor; 6. a three-way pipe; 7. a ball valve; 8. and an exhaust port.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
Embodiments of the utility model:
as shown in fig. 1, the electronic quick-acting hydraulic relay comprises a housing 4, and an exhaust port 8, a flange 1 and an electrical interface 2 are arranged on the housing 4. The exhaust port 8 is connected with a three-way pipe 6, and the other two ports of the three-way pipe 6 are respectively connected with the pressure sensor 5 and the valve. The first pipe section of the three-way pipe 6 is horizontally arranged, one end of the first pipe section is connected with the exhaust port 8, and the other end of the first pipe section is provided with the valve; the second section of the tee 6 is perpendicular to the first section, and the pressure sensor 5 is mounted at the end of the second section.
The exhaust port 8 is of an original structure, and the original oil pressure relay is also provided with an exhaust system for exhausting gas in the relay cavity in the installation process, so that the transformer oil can be filled in the cavity. After the tee joint structure is added, the exhaust function is not affected. The valve is a ball valve 7, and can be operated when the exhaust gas is exhausted.
The electric interface 2 is provided with a wiring terminal, can output signals, and is operated after reaching the set condition when the internal pressure of the original oil pressure relay, and sends out signals for cutting off the transformer. The utility model can monitor pressure data in real time after the pressure sensor 5 is additionally arranged, and can realize the pressure remote transmission function, and the traditional mechanical protection is improved into an electronic type and mechanical type double-protection mode. By matching with corresponding software, a real-time pressure curve can be obtained, the running state of the transformer can be known in advance, and the transformer is ready for preparation.
In order to avoid corrosion damage to the components caused by the temperature of the transformer oil or condensation, the housing 4 is made of cast aluminium alloy. The reason for using cast aluminum alloy is as follows: the electronic quick-acting oil pressure relay is independently arranged on the transformer oil tank, and due to the temperature difference between the environment and the transformer oil, condensation in the cavity is easily caused, so that corrosion, peeling and blocking of metal parts for control and detection can be caused, and the internal control and detection technical effects are destroyed. In order to avoid the problems, the quick-acting oil pressure relay shell 4 can be manufactured by adopting cast aluminum alloy, and the heat conductivity of the cast aluminum alloy is 5-6 times that of ferrous metal and is nearly 10 times that of stainless steel.
The shell 4 is also provided with a ventilation opening 3 which is used as a test opening during test. Whether the relay acts or not can be judged qualitatively through an inflation mode, and the vent 3 is made of brass or copper.
The periphery of the flange 1 is provided with a plurality of flange holes 11, and the flange holes 11 are U-shaped holes, so that the installation is convenient.
The electronic quick-acting oil pressure relay can monitor the oil pressure in the transformer in real time, solves the problem that the existing on-site oil leakage does not act, the personal hazard caused by the 'creepage' misoperation of the junction box leads to the maintenance of inspection personnel, and can realize the accurate perception of the actual running state of the transformer, thereby ensuring the reliable running of the national network and the safe maintenance of personnel to a greater extent.
Claims (6)
1. The electronic quick-acting oil pressure relay comprises a shell, wherein an exhaust port, a flange and an electrical interface are arranged on the shell, and the electronic quick-acting oil pressure relay is characterized in that: the exhaust port is connected with a three-way pipe, and the other two ports of the three-way pipe are respectively connected with a pressure sensor and a valve.
2. The electronic quick oil pressure relay according to claim 1, wherein: the housing is made of a cast aluminum alloy.
3. The electronic quick oil pressure relay according to claim 1, wherein: the shell is also provided with a vent for being used as a test port during test.
4. An electronic quick oil pressure relay according to any one of claims 1 to 3, characterized in that: the valve is a ball valve.
5. An electronic quick oil pressure relay according to any one of claims 1 to 3, characterized in that: the first pipe section of the three-way pipe is horizontally arranged, one end of the first pipe section is connected with the exhaust port, and the other end of the first pipe section is provided with the valve.
6. An electronic quick oil pressure relay according to any one of claims 1 to 3, characterized in that: the periphery of the flange is provided with a plurality of flange holes, and the flange holes are U-shaped holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320971265.0U CN220020983U (en) | 2023-04-26 | 2023-04-26 | Electronic quick-acting oil pressure relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320971265.0U CN220020983U (en) | 2023-04-26 | 2023-04-26 | Electronic quick-acting oil pressure relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220020983U true CN220020983U (en) | 2023-11-14 |
Family
ID=88675598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320971265.0U Active CN220020983U (en) | 2023-04-26 | 2023-04-26 | Electronic quick-acting oil pressure relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220020983U (en) |
-
2023
- 2023-04-26 CN CN202320971265.0U patent/CN220020983U/en active Active
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