CN202305738U - Insulating oil compression online monitoring system - Google Patents
Insulating oil compression online monitoring system Download PDFInfo
- Publication number
- CN202305738U CN202305738U CN2011204105269U CN201120410526U CN202305738U CN 202305738 U CN202305738 U CN 202305738U CN 2011204105269 U CN2011204105269 U CN 2011204105269U CN 201120410526 U CN201120410526 U CN 201120410526U CN 202305738 U CN202305738 U CN 202305738U
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- China
- Prior art keywords
- oil
- online monitoring
- monitoring device
- oily
- monitor device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 title abstract 4
- 238000007906 compression Methods 0.000 title abstract 4
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 239000000446 fuel Substances 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012806 monitoring device Methods 0.000 abstract 6
- 239000007788 liquid Substances 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 10
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Abstract
The utility model discloses an insulating oil compression online monitoring system. The system is characterized by comprising an oil inlet valve, an oil online monitoring device and an oil drain valve, wherein the oil inlet valve is communicated with the oil online monitoring device; a waste oil tank is arranged between the oil online monitoring device and the oil drain valve; an oil drain pump a is arranged on a pipeline connected with the oil online monitoring device and the waste oil tank; an oil drain pump b is arranged at the rear end of the oil drain valve; the oil online monitoring device comprises an oil sample acquisition device and an oil sample compression testing device; and the oil online monitoring device is provided with a liquid level switch. The system has the advantages of monitoring the compression value of the insulating oil on line, realizing real-time sensing, monitoring, analysis, prediction and fault diagnosis of the running state of transformer equipment, estimating the working state of power equipment by means of a production management information system (PMS), raising an overhauling strategy, controlling fault development, eliminating faults, avoiding accidents of the power equipment, and ensuring safe, reliable and normal operation of the equipment.
Description
Technical field
The utility model relates to the withstand voltage on-line monitoring system of insulating oil.
Background technology
Transformer is a most important electrical equipment in the electric substation, and the vital role that the loaded tap-off transformer is being brought into play in electric system and got in touch with electrical network, regulating reactive power flow and steady load center voltage is widely used in electrical network.For guaranteeing the stable of system voltage, the frequent change action of on-load tap changers of transformers descends the oil of insulating oil; Oil descends and causes switch insulation spare decreasing insulating again, and loaded tap switch oil chamber uncombined carbon and heavy metal particle gather many more more, and this will have a strong impact on the integral insulation level of shunting switch; Along with the carbon granules and the increase of micro-water content that are suspended in the oil; The dielectric strength of oil will reduce greatly, cause alternate puncture of shunting switch even blast, seriously jeopardize equipment safety operation.Therefore, should provide a kind of new technical scheme to address the above problem.
The utility model content
The purpose of the utility model is: to above-mentioned deficiency, the withstand voltage in a kind of ability on-line monitoring insulating oil is provided, realizes the withstand voltage on-line monitoring system of insulating oil to real-time perception, supervision, analysis, prediction and the fault diagnosis of transformer equipment running status.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: the withstand voltage on-line monitoring system of insulating oil; Comprise the inlet valve, oily on-Line Monitor Device and the fuel outlet valve that are arranged at the oil-in below, said inlet valve is communicated with oily on-Line Monitor Device, is provided with dirty oil tank between said oily on-Line Monitor Device and the fuel outlet valve; The pipeline that connects oily on-Line Monitor Device and dirty oil tank is provided with drainage pump a; The rear end of fuel outlet valve is provided with drainage pump b, and said oily on-Line Monitor Device comprises oil sample harvester and oil sample pressure resistant testing device, and said oily on-Line Monitor Device is provided with level switch.
The withstand voltage on-line monitoring system of the utility model insulating oil, wherein oily on-Line Monitor Device comprises oil sample harvester and oil sample pressure resistant testing device, oily on-Line Monitor Device is carried out automatic frequency breakdown voltage (effective value) test to the transformer oil sample.All processes moves control automatically; Have the test of boosting automatically, stir automatically, handle automatically, measure accurately the advantage that test process is safe and reliable; Can be used to judge the moisture degree of polluting with other suspensions of insulating oil, and the check of and degree of filtration dry to oil product before the injection device.
The utility model has the advantages that: withstand voltage in the ability on-line monitoring insulating oil; Realization relies on production management infosystem (PMS) that the power equipment duty is made assessment to real-time perception, supervision, analysis, prediction and the fault diagnosis of transformer equipment running status; Propose the maintenance strategy, control fault development and elimination fault have and avoid the power equipment accident that device security, reliable, the normal advantage of moving take place, guarantee.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Fig. 1 is the utility model theory diagram.
Wherein: 1, oil-in, 2, inlet valve, 3, oily on-Line Monitor Device, 4, fuel outlet valve, 5, dirty oil tank, 6, drainage pump a, 7, drainage pump b, 8, level switch, 9, the oil sample harvester, 10, the oil sample pressure resistant testing device.
Embodiment
As shown in Figure 1; The withstand voltage on-line monitoring system of the utility model insulating oil; Comprise the inlet valve 2, oily on-Line Monitor Device 3 and the fuel outlet valve 4 that are arranged at oil-in 1 below, inlet valve 2 is communicated with oily on-Line Monitor Device 3, is provided with dirty oil tank 5 between oily on-Line Monitor Device 3 and the fuel outlet valve 4; The pipeline that connects oily on-Line Monitor Device 3 and dirty oil tank 5 is provided with drainage pump a 6; The rear end of fuel outlet valve 4 is provided with drainage pump b 7, and oily on-Line Monitor Device 3 comprises oil sample harvester 9 and oil sample pressure resistant testing device 10, and oily on-Line Monitor Device 3 is provided with level switch 8.
The work thinking and the principle analysis of the withstand voltage on-line monitoring system of the utility model insulating oil are following: the voltage of the input of insulating oil withstand voltage test equipment is alternating current 220V; Start from scratch during test and boost; Through level and smooth the regulating of pressure regulation motor drives pressure regulator; By the voltage that testing transformer promotes by a relatively large margin, be added to the two poles of the earth of insulation lubricating cup through the voltage behind the pressure regulator, boost with the speed of 3kV/s.The voltage that raises gradually is in the negative pole end meeting emitting electrons of voltage, when electronics has enough energy; Can make the disassociation of littleization of oil molecule, after reaching some voltage, can produce a large amount of conduction currents and form electric arc; Punch-through takes place, and voltage at this moment is voltage breakdown.
If when having water or solids to exist in the oil, voltage breakdown is diminished.It is the dangerous signal of electric equipment work such as transformer that the breakdown potential of oil in service is forced down.According to stipulating in the domestic and international standard of transformer oil that voltage breakdown is generally at 40～80kV; The high 110kV that reaches; Can the output ceiling voltage of experimental transformer be designed to 120kV, guarantee the accurate measurement of the withstand voltage level of insulating oil accurately, when insulating oil is broken down by high-voltage; The voltage table reading sharply drops to zero, reometer reading fast rise.To puncture the uncombined carbon that produces in order reducing, should breakdown current to be limited in below the 5mA.
After insulating oil is breakdown, stirs the motor start-up rotation and drive oil sample pressure resistant testing device lubricating cup internal magnet stirring insulating oil, and write down the value of voltage breakdown, static then 5min repeats above-mentioned steps 5 times.Calculate the mean value Uav=(U1+U2+U3+U4+U5)/5 that tests the voltage breakdown that obtains for 5 times, calculate fuel-displaced dielectric strength, E=Uav/d.With the test findings electrical strength comparison of insulating oil with it, the person of satisfying is qualified, otherwise is defective.
When voltage reaches 110kV and keeps one minute insulating oil not have under the breakdown situation, pressure regulator carries out step-down with the speed of 3kV/s and makes zero, and exports the withstand voltage qualified conclusion of insulating oil simultaneously.
Use the withstand voltage on-line monitoring system of the utility model insulating oil that insulating oil is monitored, operation steps is following:
A, open inlet valve 2, insulating oil to be measured is imported in the lubricating cup of oil sample pressure resistant testing device 10, after the level switch 8 of treating the lubricating cup vertical direction detects insulating oil, close inlet valve 2;
B, startup stirring apparatus stirred static 10 minutes 5 minutes;
C, startup oil sample pressure resistant testing device 10, record oil sample withstand voltage;
D, startup stirring apparatus 30 seconds, static 5 minutes, start pressure resistant testing device 10 once more, write down oily withstand voltage;
E, repetition are stirred for 2 times, static, oily voltage-withstand test;
F, 4 oily voltage-withstand test data mean values of calculating draw this test insulating oil withstand voltage;
G, start drainage pump a 6, open fuel outlet valve 4 simultaneously, the insulating oil in the lubricating cup of oil sample pressure resistant testing device is entered dirty oil tank drainage pump a 6 out of service after 5,8 minutes, shut-off valve fuel outlet valve 4;
It is 40 test oil samples that h, dirty oil tank 5 are deposited the waste oil capacity, treat that 40 test counts arrive after, device drains Residual oil in the dirty oil tank automatically, and out of service;
I, manually opened dirty oil tank 5 drain cocks after Residual oil all enters the waste oil tube through drainage pump b7 in the dirty oil tank 5, are closed the dirty oil tank drain cock, and so far, whole observation process is accomplished.
Claims (1)
1. the withstand voltage on-line monitoring system of insulating oil; It is characterized in that: comprise the inlet valve, oily on-Line Monitor Device and the fuel outlet valve that are arranged at the oil-in below; Said inlet valve is communicated with oily on-Line Monitor Device; Be provided with dirty oil tank between said oily on-Line Monitor Device and the fuel outlet valve, the pipeline that connects oily on-Line Monitor Device and dirty oil tank is provided with drainage pump a, and the rear end of fuel outlet valve is provided with drainage pump b; Said oily on-Line Monitor Device comprises oil sample harvester and oil sample pressure resistant testing device, and said oily on-Line Monitor Device is provided with level switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204105269U CN202305738U (en) | 2011-10-25 | 2011-10-25 | Insulating oil compression online monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204105269U CN202305738U (en) | 2011-10-25 | 2011-10-25 | Insulating oil compression online monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305738U true CN202305738U (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204105269U Expired - Fee Related CN202305738U (en) | 2011-10-25 | 2011-10-25 | Insulating oil compression online monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305738U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973315A (en) * | 2016-07-28 | 2016-09-28 | 国家电网公司 | On-load switch insulating oil online detection device |
| CN109451457A (en) * | 2018-11-09 | 2019-03-08 | 国网四川省电力公司天府新区供电公司 | A kind of automatic uploading system of power equipment test data |
| CN111190082A (en) * | 2020-01-09 | 2020-05-22 | 华北电力大学 | Liquid steam dielectric strength testing arrangement |
| CN112748316A (en) * | 2020-12-31 | 2021-05-04 | 安徽新皖能检测有限公司 | Withstand voltage detection device for insulating oil and withstand voltage detection method thereof |
-
2011
- 2011-10-25 CN CN2011204105269U patent/CN202305738U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973315A (en) * | 2016-07-28 | 2016-09-28 | 国家电网公司 | On-load switch insulating oil online detection device |
| CN109451457A (en) * | 2018-11-09 | 2019-03-08 | 国网四川省电力公司天府新区供电公司 | A kind of automatic uploading system of power equipment test data |
| CN111190082A (en) * | 2020-01-09 | 2020-05-22 | 华北电力大学 | Liquid steam dielectric strength testing arrangement |
| CN112748316A (en) * | 2020-12-31 | 2021-05-04 | 安徽新皖能检测有限公司 | Withstand voltage detection device for insulating oil and withstand voltage detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY STATE ELECTRIC NET Effective date: 20130411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130411 Address after: 226006 Jiangsu Province, Nantong City Chongchuan District Youth Road No. 111 Patentee after: Nantong Power Supply Company, Jiangsu Electric Power Co., Ltd. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 226006 Jiangsu Province, Nantong City Chongchuan District Youth Road No. 111 Patentee before: Nantong Power Supply Company, Jiangsu Electric Power Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20191025 |