CN104748918A - Oil leak detector of power capacitor - Google Patents
Oil leak detector of power capacitor Download PDFInfo
- Publication number
- CN104748918A CN104748918A CN201510170951.8A CN201510170951A CN104748918A CN 104748918 A CN104748918 A CN 104748918A CN 201510170951 A CN201510170951 A CN 201510170951A CN 104748918 A CN104748918 A CN 104748918A
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- China
- Prior art keywords
- oil
- power capacitor
- vessel
- oil leakage
- unit according
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
- G01N2021/1704—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids in gases
Abstract
The invention relates to an oil leak detector of a power capacitor. The oil leak detector comprises an oil collection container gathering leaky oil of the power capacitor, a power source and a photoacoustic spectrometry detector, wherein the oil collection container is arranged beneath the power capacitor, the power source applies voltage to liquid in the oil collection container and is connected with the oil collection container, and the photoacoustic spectrometry detector detects gas generated after voltage is applied and is arranged at a container mouth of the oil collection container. Compared with the prior art, the oil leak detector has the advantages of reliable detecting results, simple structure, low cost, convenience in operation and the like.
Description
Technical field
The present invention relates to a kind of monitoring device, especially relate to a kind of oil leakage of power capacitor pick-up unit.
Background technology
The power capacitor that current China uses, because the porcelain bushing shell of capacitor is different with the expansion coefficient of metal shell, causes the phenomenon of capacitor ceramic sleeve pipe root leakage of oil.Existing a kind of common method solves by manual patrol, but personal monitoring's method not only wastes manpower, and find that oil leakage of power capacitor exists very large uncertainty and instability, if there is no Timeliness coverage oil leakage of power capacitor, then can decline because of the power capacitor dielectric level after leakage of oil, cause punch through damage, cause the accident, directly affect electrical production, harm personal safety.In addition, Chinese patent CN201561844U provides a kind of oil leakage of power capacitor on-Line Monitor Device, and this device includes infrared monitoring probe group, server and computing machine, and server is connected with infrared monitoring probe group by transmission line; In infrared monitoring probe group, the quantity of infrared monitoring device probe is 5; Transmission line is optical fiber.This device can carry out real time on-line monitoring to power capacitor, but it is more to there is component, the deficiency that cost is higher.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and the oil leakage of power capacitor pick-up unit that a kind of testing result is reliable, structure is simple, cost is low, easy to operate is provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of oil leakage of power capacitor pick-up unit, comprising:
One collect the oil that power capacitor leaks out connect oil vessel, be located at below power capacitor;
Liquid in one docking oil vessel executes alive power supply, and connects oil vessel and is connected;
The optoacoustic spectroscopy detection instrument of the gas produced after one detection applies voltage, is arranged on the vessel port connecing oil vessel.
The described oil vessel that connects comprises funnel back cover container or oil drain pan.
Described power supply comprises accumulator.
Described power supply comprises miniature transformer, and this miniature transformer is connected with electric system primary side.
Described optoacoustic spectroscopy detection instrument adopts PGS-2 type optoacoustic gas sensor.
Compared with prior art, the present invention has the following advantages:
(1) the present invention detects the gas change connecing the vessel port of oil vessel by optoacoustic spectroscopy detection instrument, thus judges whether oil leakage phenomenon occurs, and testing result is reliable, effective;
(2) apparatus of the present invention structure is simple, and cost is low, easy to operate.
(3) apparatus of the present invention reaction velocity is fast, can Timeliness coverage fault reporting to the police.
(4) the present invention adopts optoacoustic gas sensor, highly sensitive in minimum gas detection, accuracy is high, reliability is high, have that sensing range is wide, response is fast, be applicable to on-line checkingi, do not need consume carrier gas, the advantage such as detection while multicomponent gas can be realized.
(5) the present invention adopts PGS-2 type photo-acoustic spectrometer to adopt single beam structure and carries out collection to the normalized of spectral sources and acoustical signal, process, storage and display by microcomputer; Structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of oil leakage of power capacitor pick-up unit, comprise and connect oil vessel 1, power supply 2 and optoacoustic spectroscopy detection instrument 3, wherein, connecing oil vessel 1 is located at below power capacitor 4, for collecting the oil that power capacitor leaks out, power supply 2 with connect oil vessel and be connected, apply voltage for the liquid docked in oil vessel, the liquid in container is discharged; Optoacoustic spectroscopy detection instrument 3 is arranged on the vessel port connecing oil vessel, for detecting the gas applying to produce after voltage, judges whether leakage of oil.In the present embodiment, connect oil vessel 4 and can be funnel back cover container, also can be oil drain pan etc.Power supply 2 adopts accumulator.Optoacoustic spectroscopy detection instrument 3 adopts PGS-2 type optoacoustic gas sensor.
The principle of work of above-mentioned oil leakage of power capacitor pick-up unit is:
(1) before coming into operation, record is carried out to the data that optoacoustic spectroscopy detection instrument exports---by the Output rusults of detection instrument detecting air as standard;
(2) after coming into operation, if power capacitor does not have oil seepage out, the data that so now optoacoustic spectroscopy detection instrument exports should be similar to the result in (1), can judge that power capacitor does not leak oil condition and occurs thus;
(3) after coming into operation, if power capacitor has oil seepage out, the data that so now optoacoustic spectroscopy detection instrument exports should have larger discrepancy with the result in (1), can judge oil leakage of power capacitor thus, should staff be sent immediately to go to maintenance.
(4) if encounter rainy day, after water electric discharge so in container, a large amount of gas can not be produced, also only hydrogen and oxygen is produced at most, gaseous species is less, the data exported by optoacoustic spectroscopy detection instrument and the contrast of result in (1), can avoid situation about judging by accident completely.And if now have oil in container, by the effect of electric discharge, still can produce a large amount of various gases, now optoacoustic spectroscopy detection instrument just can judge whether power capacitor has seepage oil condition to occur easily.
Embodiment 2
Shown in figure 1, in the present embodiment, power supply 2 adopts miniature transformer, and this miniature transformer is connected with electric system primary side, draws and gets relevant voltage, for connecing the liquid carrying voltage supplied in oil vessel.All the other are with embodiment 1.
Claims (5)
1. an oil leakage of power capacitor pick-up unit, is characterized in that, comprising:
One collect the oil that power capacitor leaks out connect oil vessel, be located at below power capacitor;
Liquid in one docking oil vessel executes alive power supply, and connects oil vessel and is connected;
The optoacoustic spectroscopy detection instrument of the gas produced after one detection applies voltage, is arranged on the vessel port connecing oil vessel.
2. oil leakage of power capacitor pick-up unit according to claim 1, is characterized in that, described in connect oil vessel and comprise funnel back cover container or oil drain pan.
3. oil leakage of power capacitor pick-up unit according to claim 1, is characterized in that, described power supply comprises accumulator.
4. oil leakage of power capacitor pick-up unit according to claim 1, is characterized in that, described power supply comprises miniature transformer, and this miniature transformer is connected with electric system primary side.
5. oil leakage of power capacitor pick-up unit according to claim 1, is characterized in that, described optoacoustic spectroscopy detection instrument adopts PGS-2 type optoacoustic gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170951.8A CN104748918B (en) | 2015-04-10 | 2015-04-10 | Oil leakage detection device for power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510170951.8A CN104748918B (en) | 2015-04-10 | 2015-04-10 | Oil leakage detection device for power capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104748918A true CN104748918A (en) | 2015-07-01 |
| CN104748918B CN104748918B (en) | 2020-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510170951.8A Active CN104748918B (en) | 2015-04-10 | 2015-04-10 | Oil leakage detection device for power capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104748918B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146814A (en) * | 2020-09-25 | 2020-12-29 | 国网安徽省电力有限公司电力科学研究院 | Gas relay sealing performance test device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561844U (en) * | 2009-10-30 | 2010-08-25 | 国网运行有限公司宜昌超高压管理处 | Online monitoring device for oil leakage of power capacitor |
| CN202305494U (en) * | 2011-10-18 | 2012-07-04 | 广州领步电气技术有限公司 | On-line chromatograph monitoring system for oil immersing type transformer |
| CN102539338A (en) * | 2011-12-30 | 2012-07-04 | 昆山和智电气设备有限公司 | Online monitoring system for gas content in transformer oil by using photoacoustic spectrum |
| CN104165880A (en) * | 2014-08-20 | 2014-11-26 | 国家电网公司 | Online detecting method of dissolved gas in transformer oil |
-
2015
- 2015-04-10 CN CN201510170951.8A patent/CN104748918B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561844U (en) * | 2009-10-30 | 2010-08-25 | 国网运行有限公司宜昌超高压管理处 | Online monitoring device for oil leakage of power capacitor |
| CN202305494U (en) * | 2011-10-18 | 2012-07-04 | 广州领步电气技术有限公司 | On-line chromatograph monitoring system for oil immersing type transformer |
| CN102539338A (en) * | 2011-12-30 | 2012-07-04 | 昆山和智电气设备有限公司 | Online monitoring system for gas content in transformer oil by using photoacoustic spectrum |
| CN104165880A (en) * | 2014-08-20 | 2014-11-26 | 国家电网公司 | Online detecting method of dissolved gas in transformer oil |
Non-Patent Citations (2)
| Title |
|---|
| 方大千: "《简明实用电工查算手册》", 31 July 2014 * |
| 王然: "变压器油溶解气的激光光声光谱分析", 《电子世界》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146814A (en) * | 2020-09-25 | 2020-12-29 | 国网安徽省电力有限公司电力科学研究院 | Gas relay sealing performance test device |
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| CN104748918B (en) | 2020-08-11 |
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