CN106706721A - Transformer oil moisture detecting system - Google Patents
Transformer oil moisture detecting system Download PDFInfo
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- CN106706721A CN106706721A CN201510783793.3A CN201510783793A CN106706721A CN 106706721 A CN106706721 A CN 106706721A CN 201510783793 A CN201510783793 A CN 201510783793A CN 106706721 A CN106706721 A CN 106706721A
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- sensor
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- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000003993 interaction Effects 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 5
- 238000009834 vaporization Methods 0.000 abstract description 3
- 230000008016 vaporization Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 239000012159 carrier gas Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention provides a transformer oil moisture detecting system which includes an automatic quantitative sampling part, an oil-water separation part, a moisture content detection part and a human-computer interaction part, the automatic quantitative sampling part adopts a quantitative tube, the oil-water separation part adopts an oil-water separation column, the human-computer interaction part comprises a display unit and a keyboard; the moisture detection part includes a main control module and a sampling module, the sampling module includes a sampling unit, a control unit and a data communication unit, the sampling unit includes a temperature sensor, a humidity sensor and a flow rate sensor, the temperature sensor, the humidity sensor and the flow rate sensor are respectively connected with the control unit, and the control unit is connected with the main control module through the data communication unit. The transformer oil moisture detecting system is simple in operation, fast in detection speed, free of preparation and preservation of a chemical reagent, and capable of realizing automatic quantitative sampling, oil water separation, moisture vaporization, moisture detection and micro-water content calculation.
Description
Technical field
The present invention relates to technical field of water detection, more particularly to a kind of Micro-Moisture in Transformer Oil detection system
System.
Background technology
Gaseous impurity and micro-moisture in transformer oil can reduce the insulating properties of transformer oil, accelerate insulation
System aging, can also result in partial discharge of transformer and punctures and produce bubble, and this not only shortens transformer
Normal service life, can cause security incident to occur when serious, cause huge loss and harm, therefore become
Depressor was required for carrying out micro- water detection before putting into operation.Water content detection side in the transformer oil studied at present
Method mainly has the way of distillation, Karl_Fischer method, gravimetric method and Method of Dielectric Coefficient, and various methods respectively have advantage and disadvantage.
Way of distillation principle is simple, but detection time is long, and affected by environment big, analysis efficiency and the degree of accuracy are low, detection
Error is big；Karl_Fischer method analyze speed is fast, and sensitivity is high, and the degree of accuracy is high, but during detection titration cell it is clear
The pseudotitration terminal phenomenon and the relative humidity of air occurred once in a while in cleanliness, titration parameters and titration are all
The chemical reagent used in testing result, and detection can be influenceed to contain certain toxicity, misoperation can influence
The health of experimenter, discarded reagent can also cause certain pollution to environment；Gravimetric method principle is simpler,
But foreign gas often is mixed with oil, causes precision not high；Method of Dielectric Coefficient can be applied to the online of micro- water in oil
Detection, the degree of accuracy is higher, can directly obtain moisture, but testing result easily by capacitive sensitivity and
Ambient temperature effect.
The content of the invention
It is an object of the invention to solve above technical problem, there is provided one kind does not need chemical reagent, without any
Chemical reaction, environmentally safe to operating personnel's nonhazardous, the low transformer oil moisture inspection of operating cost
Examining system.
In order to solve the above technical problems, present invention employs a kind of transformer oil MOISTURE MEASUREMENT SYSTEM, including from
Dynamic quantitative sampling part, water-oil separating part, moisture detection part and man-machine interaction part, it is described from
Dynamic quantitative sampling part uses quantity tube, and the water-oil separating part uses oil-water separation column, the man-machine friendship
Mutually part includes display unit and keyboard；The water content detection part includes main control module and sampling module,
The sampling module includes sampling unit, control unit, data communication units, and the sampling unit includes temperature
Degree sensor, humidity sensor and flow sensor, the temperature sensor, humidity sensor and flow are passed
Sensor connects control unit respectively, and described control unit connects main control module by data communication units.
The moisture detection part is arranged in constant temperature control box, and the temperature sensor is used to detect perseverance
Temperature control the temperature inside the box, described control unit connection heating pipe device, for entering trip temperature to constant temperature control box
Control.
The device have the advantages that：Simple to operate, detection speed is fast, it is not necessary to prepare and preserve chemistry
Reagent, can be automatically obtained quantitative sampling, water-oil separating, moisture vaporization, water content detection, micro-water content calculating；
Ensure that efficient detection in time and realize environmental protection.
Brief description of the drawings
Fig. 1 is present system operation principle block diagram.
Fig. 2 is water content detection fractional hardware structured flowchart of the present invention.
Fig. 3 is sampling module structured flowchart in the present invention.
Specific embodiment
The operation principle of transformer oil MOISTURE MEASUREMENT SYSTEM of the present invention is as shown in figure 1, main included certainly
Dynamic quantitative sampling part, water-oil separating part, moisture detection part and man-machine interaction part.It is described from
The core component of dynamic quantitative sampling part is high-precision fixed buret, accessory have pouring orifice, seal, oil spilling mouthful,
Oil spilling discharge pipe etc.；Oil sample to be measured enters quantity tube from pouring orifice, and oil sample to be measured is full of in quantity tube, unnecessary
Oil from oil spilling discharge line discharge；The volume of quantity tube is standard value, to ensure the consistent of each sampling amount.
The core component of the water-oil separating part is oil-water separation column, including hollow outer tube, import and
Outlet.The separating pipe and evaporation tube being communicated with outer tube, separating pipe are connected with import, evaporation tube with go out
Mouth connection, is provided with water-oil separating particle in separating pipe.Using 99.99% high pure nitrogen as load in oil-water separation column
Gas, the carrier gas for carrying quantitatively tested oil sample enters separating pipe, by the centrifugation of water-oil separating particle, will
Oil and water are separated, and oil is sticked on water-oil separating particle, and the carrier gas for carrying moisture is arranged from evaporation tube
Go out, into water content detection part.By after water-oil separating and evaporation, the moisture in standard oil sample enters with carrier gas
Enter test chamber, a gas humidity sensor and a gas flow sensor, real time high-speed are installed in cavity
Detect the humidity and flow of carrier gas.Whole test chamber is placed in constant temperature control box, it is ensured that water-oil separating, water
Divide vaporization, water content detection is not influenceed by environment temperature.
As shown in Fig. 2 the moisture detection part mainly includes sampling module and main control module；Institute
State sampling module and be connected with gas humidity sensor, gas flow sensor, heating pipe device etc., it is main complete
Into temperature, gas flow, gas humidity sampling, in thermostat the control of heating tube and with master control molding
The functions such as block data exchange.Main control module mainly complete the treatment of sampled data, correspondence with foreign country, LCD show,
The functions such as keyboard scan.
The main control module receives temperature, humidity, flow signal, and temperature signal is used to judge whether to reach
Constant temperature, after temperature reaches detection requirement, can start oiling detection.Humidity and flow signal are recorded during detection,
Calculated by the moisture of sensor using integral algorithm；Detection termination condition, reaching condition are judged simultaneously
Detection afterwards terminates；Moisture can calculate water content in oil content divided by injection flow.
The main control module uses the ARM7 Series Controller LPC2478FBD208 of NXP companies, the control
Device has abundant Peripheral Interface, its peripheral hardware IO, UART, lcd controller, SPI and JTAG, ASP etc..
The display unit uses 4.3 cun of TFT LCD liquid crystal displays LD043W01-TD05 of LG company.
As shown in figure 3, the sampling module mainly include sampling unit, control unit, data communication units,
Reset and power unit, program debugging part.Sampling unit includes three sensors, is respectively used to detect gas
Body humidity, gas flow, the temperature of insulating box；Control unit uses microprocessor LPC2119FBD64, bears
Duty is processed these three sensor signals, and wherein temperature signal is used to be controlled the temperature of insulating box,
Humidity, flow, temperature signal are given main control module by sampling module.
The gas humidity sensor uses capacitor type thin polymer film humidity sensor, humidity sensor output
The current signal of 4~20mA, after being converted into data signal through converter AD7738BRU, is available to adopt
LPC2119 processors in egf block are processing and analyze.The gas flow sensor uses Honeywell
The AWM43300V of company, the sensor is 0~1000sccm to the detection range of gas flow, can be with system
Detection needs.
Claims (2)
1. transformer oil MOISTURE MEASUREMENT SYSTEM, including automatic ration sampling part, water-oil separating part, moisture
Content detection part and man-machine interaction part, the automatic ration sampling part use quantity tube, the profit
Separate section uses oil-water separation column, and the man-machine interaction part includes display unit and keyboard；Its feature exists
In：The water content detection part includes main control module and sampling module, and the sampling module includes that sampling is single
Unit, control unit, data communication units, the sampling unit include temperature sensor, humidity sensor and
Flow sensor, the temperature sensor, humidity sensor and flow sensor connect control unit respectively,
Described control unit connects main control module by data communication units.
2. transformer oil MOISTURE MEASUREMENT SYSTEM according to claim 1, it is characterised in that：The moisture
Content detection part is arranged in constant temperature control box, and the temperature sensor is used to detect temperature in constant temperature control box
Degree, described control unit connection heating pipe device, for carrying out temperature control to constant temperature control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783793.3A CN106706721A (en) | 2015-11-16 | 2015-11-16 | Transformer oil moisture detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783793.3A CN106706721A (en) | 2015-11-16 | 2015-11-16 | Transformer oil moisture detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706721A true CN106706721A (en) | 2017-05-24 |
Family
ID=58931965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783793.3A Pending CN106706721A (en) | 2015-11-16 | 2015-11-16 | Transformer oil moisture detecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106706721A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459539A (en) * | 2018-12-29 | 2019-03-12 | 苏州金宏气体股份有限公司 | The detection method and detection system of micro-moisture in a kind of high-purity ethyl orthosilicate |
| CN111289935A (en) * | 2020-02-25 | 2020-06-16 | 国网江苏省电力有限公司泰州供电分公司 | Moisture distribution testing system of inverted oil-immersed current transformer |
| CN116165370A (en) * | 2023-02-27 | 2023-05-26 | 西安热工研究院有限公司 | Oil product moisture content detection system and method |
| WO2024178816A1 (en) * | 2023-02-27 | 2024-09-06 | 西安热工研究院有限公司 | Online gear oil moisture measurement method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360006A (en) * | 2011-08-05 | 2012-02-22 | 郑州光力科技股份有限公司 | Method for measuring trace water in oil |
| CN103464953A (en) * | 2013-08-20 | 2013-12-25 | 四川航达机电技术开发服务中心 | Pressing device |
| CN104459411A (en) * | 2014-12-17 | 2015-03-25 | 国网上海市电力公司 | Double-cavity transformer thermal ageing real-time simulation measuring device and application thereof |
| CN104678834A (en) * | 2014-11-26 | 2015-06-03 | 康龙 | Device for detecting water in transformer |
| CN205301228U (en) * | 2015-11-16 | 2016-06-08 | 四川航达机电技术开发服务中心 | Transformer oil moisture detecting system |
-
2015
- 2015-11-16 CN CN201510783793.3A patent/CN106706721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360006A (en) * | 2011-08-05 | 2012-02-22 | 郑州光力科技股份有限公司 | Method for measuring trace water in oil |
| CN103464953A (en) * | 2013-08-20 | 2013-12-25 | 四川航达机电技术开发服务中心 | Pressing device |
| CN104678834A (en) * | 2014-11-26 | 2015-06-03 | 康龙 | Device for detecting water in transformer |
| CN104459411A (en) * | 2014-12-17 | 2015-03-25 | 国网上海市电力公司 | Double-cavity transformer thermal ageing real-time simulation measuring device and application thereof |
| CN205301228U (en) * | 2015-11-16 | 2016-06-08 | 四川航达机电技术开发服务中心 | Transformer oil moisture detecting system |
Non-Patent Citations (1)
| Title |
|---|
| 王凯 等: "变压器油中微量水分检测装置的设计", 《现代电子技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459539A (en) * | 2018-12-29 | 2019-03-12 | 苏州金宏气体股份有限公司 | The detection method and detection system of micro-moisture in a kind of high-purity ethyl orthosilicate |
| CN109459539B (en) * | 2018-12-29 | 2024-03-22 | 金宏气体股份有限公司 | Method and system for detecting trace moisture in high-purity ethyl silicate |
| CN111289935A (en) * | 2020-02-25 | 2020-06-16 | 国网江苏省电力有限公司泰州供电分公司 | Moisture distribution testing system of inverted oil-immersed current transformer |
| CN116165370A (en) * | 2023-02-27 | 2023-05-26 | 西安热工研究院有限公司 | Oil product moisture content detection system and method |
| WO2024178816A1 (en) * | 2023-02-27 | 2024-09-06 | 西安热工研究院有限公司 | Online gear oil moisture measurement method and system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
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| WD01 | Invention patent application deemed withdrawn after publication |