CN209027623U - 750kV transformer oil level monitoring device - Google Patents
750kV transformer oil level monitoring device Download PDFInfo
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- CN209027623U CN209027623U CN201821955884.6U CN201821955884U CN209027623U CN 209027623 U CN209027623 U CN 209027623U CN 201821955884 U CN201821955884 U CN 201821955884U CN 209027623 U CN209027623 U CN 209027623U
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- level detection
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 54
- 239000000446 fuel Substances 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to electric power monitoring technical fields, are a kind of 750kV transformer oil level monitoring device, including A phase oil level detection unit, B phase oil level detection unit, C phase oil level detection unit and display and alarm unit；A phase oil level detection unit, B phase oil level detection unit and C phase oil level detection unit include oil level acquisition module, wireless transmitter module and oil level judgment module, display and alarm unit include display alarm module, wireless receiving module and control module, oil level acquisition module is connect with oil level judgment module, and oil level judgment module is connect with wireless transmitter module.The utility model can in real time, in accurate detection 750kV transformer every phase transformer oil level, it is numbered and is compared by oil level judgment module, the level height of each phase transformer of centralized displaying in real time, oil level abnormal alarm is targetedly carried out simultaneously, make staff in time and the transformer that oil level exception occurs is well understood, to quickly and targetedly repair.
Description
Technical field
The utility model relates to electric power monitoring technical fields, are a kind of 750kV transformer oil level monitoring devices.
Background technique
The features such as transformer oil has dielectric strength big, and specific heat is big, not only can be improved dielectric strength, is also equipped with heat dissipation function
Can: the heat that oil circulation generates when can be by transformer station high-voltage side bus is shed by radiator；In addition, also having arc-suppression function.
With the operation of transformer, oil level can be gradually decreased.When the oil level in conservator is higher than the 90% or low of conservator capacity
When the 10% of conservator capacity, we are defined as transformer oil level exception.In existing oil-immersed transformer, oil storage system
What the monitoring of middle oil level was completed often through artificial detection or using lever principle.Due to 750kV transformer when artificial detection
It is usually made of three single-phase transformers, three single-phase transformers need to carry out independent oil level detection, to cause live O&M
Personnel often will appear in more 750kV transformers of artificial detection mispronounce, skip；When being detected using lever principle, mainly exist
The gauge outfit of installation for transformer bottom loading position table, gauge outfit connection table bar, the tail portion of table bar are equipped with floating ball, in the oil using floating ball
Buoyancy drive link motion, connecting rod drive gauge outfit in gear movement, gear drive oil meter indicators turn, show the oil of conservator
Position variation, such detection mode is there are mechanical, precision is low, alarm free prompt facility, therefore staff can only check one by one
The oil meter pointer of each transformer, and it is low to obtain the targetedly prompt of oil level abnormal alarm, working efficiency.
Summary of the invention
The utility model provides a kind of 750kV transformer oil level monitoring device, overcomes the defects of the prior art,
It can effectively solve the existing measurement inaccuracy of existing artificial 750kV transformer oil level detection, asking without specific aim warning note
Topic.
The technical solution of the utility model is realized by following measures: a kind of 750kV transformer oil level monitoring dress
It sets, including A phase oil level detection unit, B phase oil level detection unit, C phase oil level detection unit and positioned at the display and alarm of distal end
Unit；A phase oil level detection unit, B phase oil level detection unit and C phase oil level detection unit include oil level acquisition module, wireless
Transmitting module and it can judge the oil level judgment module whether level height transfinites, display and alarm unit include display alarm mould
Block, wireless receiving module and the control module for controlling display and alarm, oil level acquisition module are connect with oil level judgment module,
Oil level judgment module is connect with wireless transmitter module, and wireless transmitter module is connect with wireless receiving module, wireless receiving module with
Control module connection, control module are connect with display alarm module.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned display alarm module includes display module and broadcasting module, and display module and broadcasting module are and control module
Electrical connection.
Above-mentioned oil level acquisition module includes fuel level sensor and A/D converter, and the fuel level sensor and A/D converter are electric
Connection, A/D converter are electrically connected with oil level judgment module.
Above-mentioned A phase oil level detection unit, B phase oil level detection unit, C phase oil level detection unit and display and alarm unit are equal
It further include power supply unit, power supply unit includes power supply and DC/DC converter, and power supply is electrically connected with DC/DC converter.
The utility model reasonable and compact in structure, it is easy to use, can in real time, every phase in accurate detection 750kV transformer
The oil level of transformer is numbered by oil level judgment module and is compared, in real time the level height of each phase transformer of centralized displaying, simultaneously
Oil level abnormal alarm is targetedly carried out, make staff in time and the transformer that oil level exception occurs is well understood, thus
Quickly and targetedly maintenance, therefore the utility model has that safety is good, accuracy is high, strong operability, time saving and energy saving
The characteristics of；The utility model oil level detection part and display alarm portion separate simultaneously, facilitate operation maintenance personnel detection oil level.
Detailed description of the invention
Attached drawing 1 is the electrical block diagram of the best embodiment of the utility model.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
The utility model is further described below with reference to examples and drawings:
As shown in Fig. 1, the 750kV transformer oil level monitoring device, including A phase oil level detection unit, B phase oil level detection
Unit, C phase oil level detection unit and display and alarm unit positioned at distal end；A phase oil level detection unit, B phase oil level detection list
Member and C phase oil level detection unit include oil level acquisition module, wireless transmitter module and can judge whether level height transfinites
Oil level judgment module, display and alarm unit include showing alarm module, wireless receiving module and for controlling display and alarm
Control module, oil level acquisition module connect with oil level judgment module, and oil level judgment module is connect with wireless transmitter module, wirelessly
Transmitting module is connect with wireless receiving module, and wireless receiving module is connect with control module, control module and display alarm module
Connection.
Here, since 750kV transformer includes the independent transformer of three-phase, every phase transformer has an oil level detection list
Member, i.e. A phase oil level detection unit, B phase oil level detection unit, C phase oil level detection unit；Oil level acquisition module is existing known skill
Art can be contact or contactless liquid level sensor, for acquiring the level height information in installation for transformer, and by information
It is sent to oil level judgment module；Oil level judgment module is existing well-known technique, and SIEMENS PLC S7-200 can be selected, and is become in 750kV
The oil level judgment module of every phase transformer is provided with number in depressor, and oil level judgment module, which is used to receive oil level acquisition module, to be adopted
The oil level data of collection, and judge whether oil level transfinites according to oil level data；Wireless transmitter module is existing well-known technique, be can be selected
Full duplex NRF905 wireless chip is mainly used to send out the number of specific oil level data, judging result, corresponding oil level judgment module
It send to control module；Wireless receiving module is existing well-known technique, and full duplex NRF905 wireless chip can be selected, be mainly used to connect
The information that wireless transmitter module is sent is received, and the information received is sent to control module；Control module is existing known skill
STC12C5A60S2 chip can be selected in art, for handling the information received, and the oil level judgment module that will be received
Number compared with the number of each oil level judgment module stored in the control module in advance pair, to control display alarm mould
Block carries out targetedly alarm and display, informs that the transformer of oil level exception occurs in staff.
Detailed process is as follows when use:
1, oil level acquisition module acquires level height in installation for transformer in real time, and level height information is sent to oil level
Judgment module；
2, oil level judgment module is handled after receiving level height information, and is set in oil level judgment module with shifting to an earlier date
The highest threshold value and lowest threshold set are compared；
3, if collected level height is greater than highest threshold value or is less than lowest threshold, oil level judgment module generates alarm
Instruction, and the number of alarm command, real-time level height, the oil level judgment module is passed through into wireless transmitter module and wireless receiving
Module is sent to control module；If collected level height is less than highest threshold value and is greater than lowest threshold, oil level judges mould
Real-time level height, oil level judgment module number are only sent to control by wireless transmitter module and wireless receiving module by block
Module；
4, control module receives all information, and by information oil level judgment module number in advance in the control module
The number of each oil level judgment module in each 750kV transformer of storage is set compared to pair, is compared successfully, then controls display alarm
Module carries out targetedly alarm and display, and comparison is unsuccessful not to be broadcasted, and is only shown.
The utility model can in real time, in accurate detection 750kV transformer every phase transformer oil level, judged by oil level
Module number compares, in real time the level height of each phase transformer of centralized displaying, while targetedly carrying out oil level abnormal alarm,
Make staff in time and the transformer that oil level exception occurs is well understood, to quickly and targetedly repair, therefore
The utility model has the characteristics that safety is good, accuracy is high, strong operability, time saving and energy saving；The utility model oil level simultaneously
Detection part is separated with display alarm portion, facilitates operation maintenance personnel detection oil level.
Detection warning device, which makes further optimization and/or improvements, can be shown to above-mentioned transformer oil level according to actual needs:
As shown in Fig. 1, the display alarm module includes display module and broadcasting module, display module and broadcasting module
It is electrically connected with control module.
Here, display module is for showing real-time level height and warning message；Broadcasting module is existing well-known technique, is used
In casting warning message.
As shown in Fig. 1, the oil level acquisition module includes fuel level sensor and A/D converter, the fuel level sensor
It is electrically connected with A/D converter, A/D converter is electrically connected with oil level judgment module.
Here, fuel level sensor is existing well-known technique, and fuel level sensor need to be placed on installation for transformer and worked as by when use
In acquire level height, fuel level sensor can convert voltage signal for collected level height, and voltage signal is sent out
Give A/D converter；A/D converter is existing well-known technique, ADC0809 analog-digital converter can be selected, for sensing oil level
The voltage signal that device is sent is converted into analog signal, and is sent to oil level judgment module.
As shown in Fig. 1, the A phase oil level detection unit, B phase oil level detection unit, C phase oil level detection unit and display
And alarm unit further includes power supply unit, power supply unit includes power supply and DC/DC converter, and power supply and DC/DC converter are electric
Connection.
Here, power supply is the utility model power supply by DC/DC converter, and DC/DC converter is mainly used to change power supply
The voltage of input simultaneously effectively exports fixed voltage；Power supply is existing well-known technique, optional firmly emerging ER34615 type 3.6VDC lithium electricity
Pond；The existing well-known technique of DC/DC converter, can be selected gold rising Yang E0305XT-1WAR2 power module, and input voltage range is
2.97VDC-3.63VDC exports as ± 5V dual power supply.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (5)
1. a kind of 750kV transformer oil level monitoring device, it is characterised in that including A phase oil level detection unit, B phase oil level detection list
Member, C phase oil level detection unit and display and alarm unit positioned at distal end；A phase oil level detection unit, B phase oil level detection unit
It include oil level acquisition module, wireless transmitter module and the oil that can judge whether level height transfinite with C phase oil level detection unit
Position judgment module, display and alarm unit include showing alarm module, wireless receiving module and for controlling display and alarm
Control module, oil level acquisition module are connect with oil level judgment module, and oil level judgment module is connect with wireless transmitter module, wireless to send out
It penetrates module to connect with wireless receiving module, wireless receiving module is connect with control module, and control module and display alarm module connect
It connects.
2. transformer oil level monitoring device according to claim 1, it is characterised in that the display alarm module includes aobvious
Show that module and broadcasting module, display module and broadcasting module are electrically connected with control module.
3. transformer oil level monitoring device according to claim 1 or 2, it is characterised in that the oil level acquisition module includes
Fuel level sensor and A/D converter, the fuel level sensor are electrically connected with A/D converter, A/D converter and oil level judgment module
Electrical connection.
4. transformer oil level monitoring device according to claim 1 or 2, it is characterised in that the A phase oil level detection unit,
B phase oil level detection unit, C phase oil level detection unit and display and alarm unit further include power supply unit, and power supply unit includes
Power supply and DC/DC converter, power supply are electrically connected with DC/DC converter.
5. transformer oil level monitoring device according to claim 3, it is characterised in that the A phase oil level detection unit, B phase
Oil level detection unit, C phase oil level detection unit and display and alarm unit further include power supply unit, and power supply unit includes power supply
With DC/DC converter, power supply is electrically connected with DC/DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821955884.6U CN209027623U (en) | 2018-11-26 | 2018-11-26 | 750kV transformer oil level monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821955884.6U CN209027623U (en) | 2018-11-26 | 2018-11-26 | 750kV transformer oil level monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209027623U true CN209027623U (en) | 2019-06-25 |
Family
ID=66910024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821955884.6U Active CN209027623U (en) | 2018-11-26 | 2018-11-26 | 750kV transformer oil level monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209027623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926528A (en) * | 2019-11-20 | 2020-03-27 | 广东电网有限责任公司 | Monitoring method and monitoring device for operation condition of external oil type metal corrugated oil conservator |
| CN110987127A (en) * | 2019-12-30 | 2020-04-10 | 西安大易电子科技有限公司 | Online liquid level monitoring method and system for oil-immersed transformer |
-
2018
- 2018-11-26 CN CN201821955884.6U patent/CN209027623U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926528A (en) * | 2019-11-20 | 2020-03-27 | 广东电网有限责任公司 | Monitoring method and monitoring device for operation condition of external oil type metal corrugated oil conservator |
| CN110926528B (en) * | 2019-11-20 | 2024-04-16 | 广东电网有限责任公司 | Monitoring method and monitoring device for operation condition of external oil type metal corrugated oil conservator |
| CN110987127A (en) * | 2019-12-30 | 2020-04-10 | 西安大易电子科技有限公司 | Online liquid level monitoring method and system for oil-immersed transformer |
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