CN107367584A - Gases Dissolved in Transformer Oil on-line monitoring system - Google Patents
Gases Dissolved in Transformer Oil on-line monitoring system Download PDFInfo
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- CN107367584A CN107367584A CN201710670789.5A CN201710670789A CN107367584A CN 107367584 A CN107367584 A CN 107367584A CN 201710670789 A CN201710670789 A CN 201710670789A CN 107367584 A CN107367584 A CN 107367584A
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- oil
- transformer
- gas
- monitoring system
- gases dissolved
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- 239000007789 gas Substances 0.000 title claims abstract description 85
- 238000012544 monitoring process Methods 0.000 title claims abstract description 74
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 14
- 230000001351 cycling effect Effects 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920006362 Teflon® Polymers 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229920006358 Fluon Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to technical field of electric power, a kind of more particularly to Gases Dissolved in Transformer Oil on-line monitoring system, the gas bottle being connected including monitoring main frame and with the monitoring main frame, the gas bottle is built with calibration gas mixture body, the gas bottle is used to test the gas that the monitoring main frame is separated from transformer insulation oil, to calibrate the monitoring main frame.The present invention carries out high-precision self calibration by carrying gas bottle, can obtain higher measurement reproducibility and lower minimum detection concentration, greatly improve the accuracy of on-line monitoring system.
Description
Technical field
The present invention relates to technical field of electric power, more particularly to a kind of Gases Dissolved in Transformer Oil on-line monitoring system.
Background technology
Hydraulic oil immersion power transformer is the nucleus equipment of load-center substation, its critical role be it is self-evident, it
Safe operation to ensure power supply reliability, reduce test and maintenance human and material resources it is all very crucial.Event once occurs for transformer
Barrier, influences that face is big, repair time length, so reliability index is an important factor for influenceing whole Power System Reliability, to it
The improvement of reliability will bring huge benefit to the safe and reliable property of whole power system and economical operation.Accordingly, it is capable in time
It was found that the failure hidden in transformer, can prevent the generation of great pernicious failure, ensure the safe and stable operation of power network.It is and sharp
Oil dissolved gas is detected with gas chromatography, carry out diagnostic device internal fault turns into maximally efficient method, and turning into ensures
The essential means of the safe operation of high-power transformer.
As national economy requires that continuous improvement, high-power transformer quantity are continuously increased to power supply reliability, existing color
Spectrum research and application means still suffer from certain limitation, mainly include Monitoring Data inaccuracy, poor repeatability, finally directly affect
Judgement for transformer problem brings erroneous judgement or false alarm universal, it is impossible to timely and effectively monitors the failure of transformer.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of Gases Dissolved in Transformer Oil on-line monitoring system
System, high-precision self calibration is carried out by carrying gas bottle, to obtain higher measurement reproducibility and lower minimum detection concentration,
Improve the accuracy of on-line monitoring system.
The invention provides a kind of Gases Dissolved in Transformer Oil on-line monitoring system, including monitor main frame and led with monitoring
The gas bottle of machine connection, built with calibration gas mixture body, gas bottle is used for monitoring main frame from transformer insulation oil gas bottle
The gas separated is tested, to calibrate monitoring main frame.
Further, monitoring main frame includes oily cycling element, and oily cycling element is used to extract oil sample from transformer.
Further, oily cycling element includes electromagnetic pump, and electromagnetic pump is connected by pipeline of pumping with the insulating oil in transformer
Connect.
Further, monitoring main frame also includes flow monitoring unit, and flow monitoring unit is used for the oil sample for monitoring extraction
Flow.
Further, monitoring main frame also includes intelligent temperature control unit, and intelligent temperature control unit is used for the oil sample of extraction is automatic
It is heated or cooled to the normal temperature of setting.
Further, intelligent temperature control unit includes temp-controlling element, and intelligent temperature control unit is by changing the polarity of temp-controlling element
Oil temperature is controlled.
Further, the Oil-temperature control scope of intelligent temperature control unit is 40-200 degrees Celsius.
Further, monitoring main frame also includes Oil-gas Separation unit, and Oil-gas Separation unit is using teflon tube to extraction
Oil sample carries out Oil-gas Separation.
Further, monitoring main frame also includes detection of gas unit, and detection of gas unit is used to detect what Oil-gas Separation went out
Gas, obtain the running state data of transformer.
Further, monitoring main frame also includes wireless transmission unit, and wireless transmission unit is used for the operation shape of transformer
State data transfer is to remote monitoring center.
By such scheme, Gases Dissolved in Transformer Oil on-line monitoring system, high accuracy is carried out by carrying gas bottle
Self calibration, higher measurement reproducibility and lower minimum detection concentration can be obtained, greatly improves on-line monitoring system
Accuracy, reduce the erroneous judgement to running state of transformer and false alarm, improve the investigation efficiency of transformer hidden danger, improve
The safety management level of transformer.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is the structural representation of Gases Dissolved in Transformer Oil on-line monitoring system of the present invention；
Fig. 2 is the structural representation of Gases Dissolved in Transformer Oil on-line monitoring system monitoring main frame of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Join shown in Fig. 1, present embodiments provide a kind of portable Gases Dissolved in Transformer Oil on-line monitoring system, wrap
Monitoring main frame 10 and the gas bottle 20 being connected with monitoring main frame 10 are included, gas bottle 20 is built with calibration gas mixture body, gas bottle 20
Gas for being separated to monitoring main frame 10 from transformer insulation oil is tested, and main frame 10 is monitored with calibration.
Can be to solution gas in transformer oil by the Gases Dissolved in Transformer Oil on-line monitoring system for carrying gas bottle
Body carries out the splendid measurement of high accuracy, continuously repeating property, and provides certified calibration gas mixture body, utilizes the gas of laboratory
The gas that insulating oil is separated is tested, is equivalent to be that a laboratory has been moved to working site, realizes and is
The automatic dynamic calibration function of system, it is ensured that the precision and accuracy of monitoring.
The calibration of the system is dynamic, the difference of testing standard can be entered according to the repeatability and operator of test
Row adjustment.Operator can realize the control to calibration cycle；In the case that calibration cycle is one day/time of calibration, this in upper figure
Individual slight gas bottle can provide the usage time not less than 2 years；The replacing of gas can be completed online, and method is easy
Fast.
Join shown in Fig. 2, in the present embodiment, monitoring main frame 10 includes oily cycling element 11, oily cycling element 11 for from
Oil sample is extracted in transformer.Oily cycling element includes electromagnetic pump, and electromagnetic pump is connected by pipeline of pumping with the insulating oil in transformer
Connect.In order to disturbance can reliable recognition and quick corresponding, system is by the high reliability electromagnetic pump of inside continuously from transformer
Extract representative oil sample.The mobile monitoring system of oil ensures that any moment all maintains oil to have enough flowings.
In the present embodiment, monitoring main frame 10 also includes flow monitoring unit 12, and flow monitoring unit, which is used to monitor, to be extracted
Oil sample flow.
In the present embodiment, monitoring main frame 10 also includes intelligent temperature control unit 13, and intelligent temperature control unit is used for extraction
Oil sample is heated or cooled to the normal temperature of setting automatically.Intelligent temperature control unit includes temp-controlling element, and intelligent temperature control unit passes through
The polarity for changing temp-controlling element is controlled to oil temperature.The Oil-temperature control scope of intelligent temperature control unit is 40-200 degrees Celsius.
The internal system has the accurate automatic regulating system of multi-step temperature.Heating control and the dynamic of 40-200 degree are tested
Realized by the temperature control system of precision.The change of oil temperature determines the precision of online gasmetry.Gaseous solubility and diffusivity
The significant changes with temperature, and this change is relevant with oily type, life-span and purity.Oil is heated or cooled to one in system
Accurate normal temperature, so as to eliminate the influence that brings of oil temperature change, so ensure that the high sensitivity of measurement, stability and
Precision.Internal system temperature control region is controlled in the scope of a very little, and intelligent temperature control unit is by changing the pole of temperature control original paper
Property enters the accurate control of trip temperature to realize heat or cool.
In the present embodiment, monitoring main frame 10 also includes Oil-gas Separation unit 14, and Oil-gas Separation unit uses teflon tube
Oil-gas Separation is carried out to the oil sample of extraction.The system carries out Oil-gas Separation using teflon (Teflon) pipe, considerably increases spy
The vapor permeation area of fluon tube bank, effectively shortens the ventilative time, reaches the purpose of the dissolved gas Fast-Balance in oil, compared to biography
System carries out oil and gas separation method using film osmosis process, substantially increases the efficiency of Oil-gas Separation, while avoid permeable membrane
The problem of causing malfunction monitoring to lag installed in the region of bypassed oil that oil circuit does not circulate.
In the present embodiment, monitoring main frame 10 also includes detection of gas unit, and detection of gas unit is used to detect oil gas point
The gas separated out, obtain the running state data of transformer.The detection of gas unit is visited using twin-stage electric discharge electronics capture gas
Survey technology.Test interval can meet at least 1 hour once.The detection of gas unit can continuously accurate monitoring hydrogen, an oxygen
Change carbon, methane, acetylene, ethene, ethane, carbon dioxide, oxygen, nitrogen.
In the present embodiment, monitoring main frame 10 also includes wireless transmission unit, and wireless transmission unit is used for transformer
Running state data is transmitted to remote monitoring center.Meanwhile monitoring main frame live can check all related arrange parameters and number
According to.
The present embodiment is carried out by the portable Gases Dissolved in Transformer Oil on-line monitoring system to live transformer
On-line monitoring, can save time and the shipment and delivery cost for coming that loopback is drawn oil sample, substantially increase the validity of on-Line Monitor Device
And reliability, the accuracy of defect analysis is improved, the erroneous judgement to running state of transformer and false alarm is reduced, improves transformation
The investigation efficiency of device hidden danger, the safety management level of transformer is improved, specifically includes following technique effect：
1) packaged type accurately monitors all failure gas online, either very low to arrive especially high concentration, Neng Goujian
Survey 9 kinds of gases (seven kinds of failure gas and oxygen, nitrogen).
2) possess the advantages of measuring accuracy height, reproducible, the abnormal Precise Diagnosis of inside transformer and alarm can be achieved；
3) the accurate of multi-step temperature can be carried out to automatically adjust, heating control and the dynamic of 40-200 degree are tested；
4) there is automatic dynamic calibration function, and gas automatic regulation function, it can be ensured that test has highest every time
Accuracy and accuracy；
5) the service intervals time, air consumption was small more than 2 years；
6) there is the communication unit for adapting to transformer station's electrical characteristic；
7) oil circulation and flow monitoring unit built in；
8) moisture of customary insulation oil and dissolving property coefficient etc. built in；
9) installation is simple.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (10)
- A kind of 1. Gases Dissolved in Transformer Oil on-line monitoring system, it is characterised in that including monitoring main frame and with the monitoring The gas bottle of main frame connection, the gas bottle built with calibration gas mixture body, the gas bottle be used for the monitoring main frame from The gas separated in transformer insulation oil is tested, to calibrate the monitoring main frame.
- 2. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 1, it is characterised in that the monitoring master Machine includes oily cycling element, and the oily cycling element is used to extract oil sample from transformer.
- 3. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 2, it is characterised in that the oil circulation Unit includes electromagnetic pump, and the electromagnetic pump is connected by pipeline of pumping with the insulating oil in transformer.
- 4. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 3, it is characterised in that the monitoring master Machine also includes flow monitoring unit, and the flow monitoring unit is used for the flow for monitoring the oil sample extracted.
- 5. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 4, it is characterised in that the monitoring master Machine also includes intelligent temperature control unit, and the intelligent temperature control unit is used for the mark that the oil sample of extraction is heated or cooled to setting automatically Quasi- temperature.
- 6. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 5, it is characterised in that the intelligent temperature Control unit includes temp-controlling element, and the intelligent temperature control unit is controlled by changing the polarity of the temp-controlling element to oil temperature.
- 7. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 6, it is characterised in that the intelligent temperature The Oil-temperature control scope for controlling unit is 40-200 degrees Celsius.
- 8. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 7, it is characterised in that the monitoring master Machine also includes Oil-gas Separation unit, and the Oil-gas Separation unit carries out Oil-gas Separation using teflon tube to the oil sample of extraction.
- 9. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 8, it is characterised in that the monitoring master Machine also includes detection of gas unit, and the detection of gas unit is used to detect the gas that Oil-gas Separation goes out, and obtains the fortune of transformer Row status data.
- 10. Gases Dissolved in Transformer Oil on-line monitoring system according to claim 9, it is characterised in that the monitoring Main frame also includes wireless transmission unit, and the wireless transmission unit is used to transmit the running state data of transformer to long-range prison Control center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670789.5A CN107367584A (en) | 2017-08-08 | 2017-08-08 | Gases Dissolved in Transformer Oil on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670789.5A CN107367584A (en) | 2017-08-08 | 2017-08-08 | Gases Dissolved in Transformer Oil on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107367584A true CN107367584A (en) | 2017-11-21 |
Family
ID=60310169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710670789.5A Pending CN107367584A (en) | 2017-08-08 | 2017-08-08 | Gases Dissolved in Transformer Oil on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107367584A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539283A (en) * | 2011-01-06 | 2012-07-04 | 北京盈胜泰科技术有限公司 | System for monitoring ingredient change of insulating oil of transformer |
| CN202870660U (en) * | 2012-10-18 | 2013-04-10 | 北京朝阳高科应用技术研究所有限公司 | Temperature and humidity automatic control system of diesel oil lubricity testing machine |
| CN104502488A (en) * | 2015-01-06 | 2015-04-08 | 国家电网公司 | Method for evaluating insulation aging degree of oil-immersed type power transformer |
| CN205003132U (en) * | 2015-08-28 | 2016-01-27 | 广西电网有限责任公司电力科学研究院 | Dissolved gas on -line monitoring device in high accuracy oil |
| CN207198118U (en) * | 2017-08-08 | 2018-04-06 | 大唐东北电力试验研究所有限公司 | Gases Dissolved in Transformer Oil on-line monitoring system |
-
2017
- 2017-08-08 CN CN201710670789.5A patent/CN107367584A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539283A (en) * | 2011-01-06 | 2012-07-04 | 北京盈胜泰科技术有限公司 | System for monitoring ingredient change of insulating oil of transformer |
| CN202870660U (en) * | 2012-10-18 | 2013-04-10 | 北京朝阳高科应用技术研究所有限公司 | Temperature and humidity automatic control system of diesel oil lubricity testing machine |
| CN104502488A (en) * | 2015-01-06 | 2015-04-08 | 国家电网公司 | Method for evaluating insulation aging degree of oil-immersed type power transformer |
| CN205003132U (en) * | 2015-08-28 | 2016-01-27 | 广西电网有限责任公司电力科学研究院 | Dissolved gas on -line monitoring device in high accuracy oil |
| CN207198118U (en) * | 2017-08-08 | 2018-04-06 | 大唐东北电力试验研究所有限公司 | Gases Dissolved in Transformer Oil on-line monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 吕方军等, 华中科技大学出版社 * |
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Application publication date: 20171121 |