CN202485744U - Oil level indication detection device of transformer - Google Patents
Oil level indication detection device of transformer Download PDFInfo
- Publication number
- CN202485744U CN202485744U CN2012200073672U CN201220007367U CN202485744U CN 202485744 U CN202485744 U CN 202485744U CN 2012200073672 U CN2012200073672 U CN 2012200073672U CN 201220007367 U CN201220007367 U CN 201220007367U CN 202485744 U CN202485744 U CN 202485744U
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- Prior art keywords
- transformer
- oil
- oil level
- sensor
- data processing
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- Expired - Lifetime
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Abstract
The utility model relates to an oil level indication detection device of a transformer. An oil tank is arranged above the transformer, an oil needle used for indicating oil level height in the oil tank and an oil discharge valve used for discharging oil are arranged on the oil tank, and the oil discharge valve stretches into the transformer. The detection device comprises a sensor used for detecting temperature and pressure, a laser range finder used for measuring oil needle position and a data processing module. The laser range finder is aligned at the oil needle, the sensor is arranged at the position of an outlet of the oil discharge valve, and the sensor and the laser range finder are both connected with the data processing module. Compared with the prior art, the oil level indication detection device can conveniently, quickly and effectively measure actual oil level in the transformer in operation, and overhauling workers are not required to climb the transformer in operation, so that safety of the overhauling workers is ensured. The oil level indication detection device is wide in using range and enables the workers to correctly detect whether the oil level indication of the transformer is correct or not.
Description
Technical field
The utility model relates to a kind of pick-up unit, especially relates to a kind of pick-up unit that is used to detect transformer oil level indication accuracy.
Background technology
Will have hundreds of that transformer is carried out charged repairing and the maintenance task of draining the oil every year in many big cities.During maintenance, often find the oil level indication and the phenomenon that actual oil level is not inconsistent of oil conservater, be commonly called as false oil level phenomenon.
At present; The method of measuring transformer oil level in service has two kinds; A kind of is to adopt plastics communicating pipe to detect the transformer oil level, and another kind is to adopt infrared thermometry to detect the transformer oil level, but these the two kinds methods of measuring oil level all have its limitation; Can't accurately judge whether to exist false oil level phenomenon, maintenance has considerable influence to reality.
The utility model content
The purpose of the utility model is exactly to provide a kind of transformer oil level that can accurately detect to indicate whether correct pick-up unit for the defective that overcomes above-mentioned prior art existence.
The purpose of the utility model can realize through following technical scheme:
A kind of transformer oil level indication pick-up unit; Described transformer top is provided with fuel tank; This fuel tank is provided with and is used to indicate the spindle of level height in the fuel tank and is used for fuel-displaced fuel outlet valve; This fuel outlet valve stretches in the transformer, and described pick-up unit comprises the sensor that is used for detected temperatures and pressure, laser range finder and the data processing module that is used to measure oil-pin position, and described laser range finder is aimed at spindle; Described sensor is located at the exit of fuel outlet valve, and sensor all is connected with data processing module with laser range finder;
The detected temperature and pressure information of data processing module receiving sensor according to the relation between oil liquid temperature and the fluid density, combines pressure information can calculate actual level height again; And laser range finder is through detecting oil-pin position; This positional information place is sent to data processing module handles, obtain the indication level height, actual level height and indication level height are compared; If its error is less than preset threshold value; The indicated oil level of spindle is correct, if its error is greater than preset threshold value, then there is false oil level phenomenon in explanation.
Described data processing module is provided with the A/D converting unit; Described sensor is connected with the A/D converting unit of data processing module; Sensor to the pressure and temperature signal be simulating signal, handle by data processing module again through after the A/D modular converter conversion.
Described sensor is connected with fuel outlet valve through flange.
Described laser range finder is through the tripod location, and laser range finder is located on the The Cloud Terrace of tripod.
This pick-up unit also comprises portable power source, and this portable power source connects sensor and data processing module respectively.
Compared with prior art, the utility model can be measured the actual oil level of transformer in service convenient, quickly and efficiently through sensor, does not need the maintainer to climb on the operating transformer; Can directly measure on the ground; Guaranteed maintainer's safety, do not received environment, space, temperature and effects of load, usable range is comparatively extensive; When not having civil power to insert; Can use portable power source to move work continuously more than 3 hours, increase substantially work efficiency, reduce the cost of overhaul.
Description of drawings
Fig. 1 is the structured flowchart of the utility model;
Fig. 2 is the arrangement synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of transformer oil level indication pick-up unit comprises laser range finder 6, is provided with data processing module 1, sensor 5 and the portable power source 3 of A/D converting unit 2.Portable power source 3 connects sensor 5 and data processing module respectively, for it provides power supply.Sensor 5 all is connected with data processing module 1 with laser range finder 6; Detected data are sent to data processing module 1 to be handled; Wherein, need carry out handling again after the digital-to-analog conversion through A/D converting unit 2 because sensor 5 produces is simulating signal.In order to improve the portability of a whole set of detection system, data processing module 1 can use panel computer.
Because fuel tank 10 is located at the top of transformer 8, this fuel tank 10 is provided with and is used to indicate the spindle 9 of level height in the fuel tank 10 and be used for fuel-displaced fuel outlet valve 11, and this fuel outlet valve 11 stretches in the transformer 8, and then the concrete layout of pick-up unit is as shown in Figure 2.Sensor 5 is located at the exit of fuel outlet valve 11, and is fixing with fuel outlet valve 11 through flange 4, and laser range finder 6 is through tripod 7 location; Laser range finder 6 is located on the The Cloud Terrace of tripod 7; When on The Cloud Terrace, rotating, the reference point of measurement is constant, makes that measurement is more accurate.
During detection, data processing module 1 receiving sensor 5 detected temperature and pressure information according to the relation between oil liquid temperature and the fluid density, combine pressure information can calculate actual level height again.Laser range finder 6 is aimed at spindle 9, detects the position of spindle 9, this positional information place is sent to data processing module 1 handles; Obtain the indication level height; Actual level height and indication level height are compared, if its error is less than preset threshold value, the indicated oil level of spindle is correct; If its error is greater than preset threshold value, then there is false oil level phenomenon in explanation.Do not need the maintainer to climb on the operating transformer 8, can directly measure on the ground, guaranteed maintainer's safety, and do not receive environment, space, temperature and effects of load, usable range is comparatively extensive.
Claims (5)
1. a transformer oil level is indicated pick-up unit; Described transformer top is provided with fuel tank; This fuel tank is provided with and is used to indicate the spindle of level height in the fuel tank and be used for fuel-displaced fuel outlet valve, and this fuel outlet valve stretches in the transformer, it is characterized in that; Described pick-up unit comprises the sensor that is used for detected temperatures and pressure, laser range finder and the data processing module that is used to measure oil-pin position; Described laser range finder is aimed at spindle, and described sensor is located at the exit of fuel outlet valve, and sensor all is connected with data processing module with laser range finder.
2. a kind of transformer oil level indication pick-up unit according to claim 1 is characterized in that described data processing module is provided with the A/D converting unit, and described sensor is connected with the A/D converting unit of data processing module.
3. a kind of transformer oil level indication pick-up unit according to claim 1 is characterized in that described sensor is connected with fuel outlet valve through flange.
4. a kind of transformer oil level indication pick-up unit according to claim 1 is characterized in that described laser range finder is through the tripod location, and laser range finder is located on the The Cloud Terrace of tripod.
5. a kind of transformer oil level indication pick-up unit according to claim 1 is characterized in that this pick-up unit also comprises portable power source, and this portable power source connects sensor and data processing module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200073672U CN202485744U (en) | 2012-01-09 | 2012-01-09 | Oil level indication detection device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200073672U CN202485744U (en) | 2012-01-09 | 2012-01-09 | Oil level indication detection device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485744U true CN202485744U (en) | 2012-10-10 |
Family
ID=46960160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200073672U Expired - Lifetime CN202485744U (en) | 2012-01-09 | 2012-01-09 | Oil level indication detection device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485744U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033286A (en) * | 2012-12-11 | 2013-04-10 | 广州供电局有限公司 | Environment temperature detecting device for transformer temperature rise test |
| CN103674163A (en) * | 2013-12-18 | 2014-03-26 | 中国西电电气股份有限公司 | Oil level monitoring method and monitoring system of oil storage system of oil-immersed transformer |
| CN104316134A (en) * | 2014-11-06 | 2015-01-28 | 山东理工大学 | Method and system for monitoring oil level of oil-immersed high-voltage electrical apparatus |
| CN109489770A (en) * | 2018-11-29 | 2019-03-19 | 国网上海市电力公司 | Intelligent transformer oil level detection system based on pressure capsule system |
| CN110779597A (en) * | 2019-11-13 | 2020-02-11 | 国网甘肃省电力公司检修公司 | High-precision measuring device and method for liquid level of transformer oil tank based on pressure sensor |
-
2012
- 2012-01-09 CN CN2012200073672U patent/CN202485744U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033286A (en) * | 2012-12-11 | 2013-04-10 | 广州供电局有限公司 | Environment temperature detecting device for transformer temperature rise test |
| CN103033286B (en) * | 2012-12-11 | 2015-08-05 | 广州供电局有限公司 | The ambient temperature detection device of transformer temperature rise test |
| CN103674163A (en) * | 2013-12-18 | 2014-03-26 | 中国西电电气股份有限公司 | Oil level monitoring method and monitoring system of oil storage system of oil-immersed transformer |
| CN103674163B (en) * | 2013-12-18 | 2016-08-24 | 中国西电电气股份有限公司 | The oil level monitoring method of a kind of oil-filled transformer oil storage system and monitoring system |
| CN104316134A (en) * | 2014-11-06 | 2015-01-28 | 山东理工大学 | Method and system for monitoring oil level of oil-immersed high-voltage electrical apparatus |
| CN104316134B (en) * | 2014-11-06 | 2017-08-01 | 山东理工大学 | Oil-immersed and high-voltage Oil-filled Electrical Equipments position monitoring method |
| CN109489770A (en) * | 2018-11-29 | 2019-03-19 | 国网上海市电力公司 | Intelligent transformer oil level detection system based on pressure capsule system |
| CN110779597A (en) * | 2019-11-13 | 2020-02-11 | 国网甘肃省电力公司检修公司 | High-precision measuring device and method for liquid level of transformer oil tank based on pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |