CN106569107A - Partial discharge determining method combining sulfur hexafluoride centralized analysis and ultrahigh frequency - Google Patents
Partial discharge determining method combining sulfur hexafluoride centralized analysis and ultrahigh frequency Download PDFInfo
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- CN106569107A CN106569107A CN201610940320.4A CN201610940320A CN106569107A CN 106569107 A CN106569107 A CN 106569107A CN 201610940320 A CN201610940320 A CN 201610940320A CN 106569107 A CN106569107 A CN 106569107A
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- sulfur hexafluoride
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N Sulfur hexafluoride Chemical compound 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FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 42
- 238000004458 analytical methods Methods 0.000 title claims abstract description 37
- 238000004587 chromatography analysis Methods 0.000 claims abstract description 34
- 239000007789 gases Substances 0.000 claims abstract description 33
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 239000012141 concentrates Substances 0.000 claims description 43
- 238000000034 methods Methods 0.000 claims description 14
- 239000003570 air Substances 0.000 claims description 13
- LSJNBGSOIVSBBR-UHFFFAOYSA-N Thionyl fluoride Chemical compound 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FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002923 metal particles Substances 0.000 claims description 6
- 229910052751 metals Inorganic materials 0.000 claims description 6
- 239000002184 metals Substances 0.000 claims description 6
- 229910001512 metal fluorides Inorganic materials 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000000354 decomposition reactions Methods 0.000 abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound 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[S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 230000034303 cell budding Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound 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[Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000203 mixtures Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
Abstract
The invention provides a partial discharge determining method combining sulfur hexafluoride centralized analysis and ultrahigh frequency. The method comprises the steps that online centralized sampling is carried out on sulfur hexafluoride gas in a number of adjacent spaced GIS devices; a decomposition product online centralized chromatographic analysis device carries out online chromatographic analysis on a sampled decomposition product; and when the suspicious signal of the decomposition product online centralized chromatographic analysis device or an online ultrahigh frequency partial discharge device is monitored, latent partial discharge in the GIS devices is accurately predicted. A partial discharge determining system which combines sulfur hexafluoride centralized analysis and ultrahigh frequency and is used by the method comprises GIS devices (1) filled with sulfur hexafluoride gas, a GIS device gas taking valve (2), the decomposition product online centralized chromatographic analysis device (3), a monitoring data processing and analysis background (4) and the online ultrahigh frequency partial discharge device (5). The method provided by the invention is applicable to the GIS electrical devices with insulating sulfur hexafluoride and arc-extinguishing medium, and can monitor the discharge type, the discharge position and the discharge quantity of the partial discharge of the GIS devices in real time.
Description
Technical field
The present invention relates to a kind of sulfur hexafluoride decomposer concentrates online chromatography to put analysis with online superfrequency office mutually tie Conjunction judges the method that GIS device office puts, category transformer station's online measuring technique field.
Background technology
With Cubicle Gas-Insulated Switchgear（GIS）It is increasing, the consumption of sulfur hexafluoride gas is also more next It is bigger.The shelf depreciation of GIS device inner part as one of defect during gas insulated high voltage electric equipment operation, not only The dielectric strength of equipment can be affected, unplanned power failure will be also caused, power grid security is affected.Therefore, GIS equipment partial discharge is judged Detection work it is extremely important.
Power industry for the power equipment that there is shelf depreciation in GIS transformer stations, mainly using offline superfrequency, super Sound wave live detection, and aid in detecting sulfur hexafluoride gas decomposition product, so as to judge in equipment with the presence or absence of electric discharge； Part transformer station is mounted with online extra-high video sensor, but is put with the presence or absence of office to consider in terms of electric parameters, is deposited unavoidably In unilateral, the inaccurate situation of test, and mutually confirm without other means.Current detection method is all difficult in GIS device Latency shelf depreciation carry out accurate anticipation, timely and effectively equipment fault could not be strangled in the budding stage, particularly also The detection technique of on-line chromatograph analysis is not carried out to sulfur hexafluoride decomposer.
Based on above-mentioned condition, a kind of sulfur hexafluoride decomposer concentrates online chromatography to put analysis phase with online superfrequency office With reference to judging that the method that GIS device office puts can well solve the problem, by the detection method can by it is adjacent it is relatively near between Every GIS device in sulfur hexafluoride gas carry out concentration sampling, then carry out the on-line chromatograph analysis of catabolite, and will detection knot In combination with analysis result is put in online superfrequency office, finding a kind of method can intuitively reflect GIS equipment partial discharge to fruit very much Electric discharge type, discharge position, discharge capacity size etc..
The content of the invention
The purpose of the present invention is that, for the problem that existing judgement GIS equipment partial discharge detection is present, the present invention discloses one Plant sulfur hexafluoride to concentrate analysis and the method that judgement office puts is combined with superfrequency.
Technical scheme is as follows, and a kind of sulfur hexafluoride concentrates analysis and the side that judgement office puts is combined with superfrequency Method, including：
Sulfur hexafluoride gas in the GIS device at adjacent multiple intervals are carried out with online concentration to sample.
Catabolite concentrates online chromatographic analysis device to carry out on-line chromatograph analysis to the catabolite for sampling.
When concentrating chromatographic analysis device or online superfrequency office to put device monitoring to questionable signal catabolite, to GIS Latency shelf depreciation in equipment carries out accurate anticipation.
The sulfur hexafluoride that methods described is adopted concentrates analysis and judgement office place system is combined with superfrequency to be included filling lithium The GIS device of sulphur gas, GIS device gas take air valve, catabolite and concentrate chromatographic analysis device, Monitoring Data process online And device is put in analysis backstage and online superfrequency office.GIS device gas takes air valve and fills sulfur hexafluoride gas by pipeline connection GIS device；And the F that will be gathered6S gas samples concentrate online chromatographic analysis device to carry out point by Pipeline transport to catabolite Analysis；Catabolite concentrates online chromatographic analysis device that analysis result is delivered to into Monitoring Data and processes and analyze backstage；It is arranged on and fills In the GIS device of sulfur hexafluoride gas line superfrequency office put device by wire connect Monitoring Data process and analyze after Platform；Monitoring Data process and the expert diagnostic system software on analysis backstage, to the latency shelf depreciation in GIS device standard is carried out Really anticipation, and electric discharge type, discharge position, the discharge capacity size of real-time monitoring GIS equipment partial discharge.
The anticipation includes whether the equipment in GIS occurs the affiliated type of shelf depreciation or electric discharge：
（1）Free metal particle discharges：When signal numerical value that device to test goes out is put higher than background value, monitoring figure in online superfrequency office When spectrum is tentatively judged as that free metal particle discharges, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2With SOF20.5 L/L is all higher than, and contains metal fluoride, be then judged as that free metal particle discharges；
（2）Floating potential discharge：
When online superfrequency office puts, the discharge pulse amplitude stability that device to test goes out, numerical value are larger, and electric discharge collection of illustrative plates is tentatively judged as During floating potential discharge, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2And SOF21.0 L/L are all higher than, And SOF2Content compare SO2F2Greatly, then it is judged as floating potential discharge；
（3）Insulating part internal air gap or creeping discharge：
When online superfrequency office puts, the discharge pulse amplitude dispersiveness that device to test goes out is larger, and electric discharge collection of illustrative plates is tentatively judged as insulation When part internal air gap or creeping discharge, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2And SOF2It is all higher than 0.5 L/L, and contain CF4, then it is judged as insulating part internal air gap or creeping discharge；
（4）Metal tip is discharged：
When online superfrequency office puts, the discharge time interval that device to test goes out is uniform, and discharge time is more, and collection of illustrative plates is tentatively judged as When metal tip is discharged, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2And SOF21.0 L/L are all higher than, And SOF2Content compare SO2F2Greatly, containing metal fluoride, then it is judged as that metal tip is discharged.
The online superfrequency office puts device and puts sensor to be mounted on GIS device inner tubal wall online superfrequency office；It is described Catabolite concentrates online chromatographic analysis device and concentrates analytical chromatograph for sulfur hexafluoride decomposer.
The invention has the beneficial effects as follows, the present invention concentrates online chromatography extra-high with online for sulfur hexafluoride decomposer Frequency office puts and analyzes the method for judging that GIS device office puts that combines, and can carry out concentration sampling to the sulfur hexafluoride gas in GIS, The on-line chromatograph analysis of catabolite is carried out again, and by testing result in combination with analysis result is put in online superfrequency office, to GIS Latency shelf depreciation in equipment carries out accurate anticipation, timely and effectively equipment fault is strangled in the budding stage.
The present invention is applied to sulfur hexafluoride as insulation and the GIS electrical equipments of arc-extinguishing medium, can real-time monitoring GIS device The electric discharge type of shelf depreciation, discharge position and discharge capacity size.
Description of the drawings
Fig. 1 is that sulfur hexafluoride of the present invention concentrates analysis and the schematic device that judgement office puts is combined with superfrequency；
In figure, 1 is the GIS device for filling sulfur hexafluoride gas；2 is that GIS device gas takes air valve；3 is that catabolite collects online Middle chromatographic analysis device；4 is that Monitoring Data processes and analyze backstage；5 is that device is put in online superfrequency office.
Specific embodiment
With reference to embodiments and compare accompanying drawing the present invention is described in detail.
As shown in figure 1, a kind of sulfur hexafluoride of the present embodiment concentrates analysis and the method that judgement office puts is combined with superfrequency, wrap Including sulfur hexafluoride gas in the GIS device to adjacent multiple intervals carries out online concentration sampling.
Catabolite concentrates chromatographic analysis device to carry out on-line chromatograph analysis to the catabolite for sampling.
When concentrating chromatographic analysis device or online superfrequency office to put device monitoring to questionable signal catabolite, to GIS Latency shelf depreciation in equipment carries out accurate anticipation.
A kind of sulfur hexafluoride of the present embodiment concentrates analysis and the system that judgement office puts is combined with superfrequency to be included filling lithium The GIS device 1 of sulphur gas, GIS device gas take air valve 2, catabolite and concentrate chromatographic analysis device 3, Monitoring Data online Process and analyze backstage 4, online superfrequency office and put device 5.
The GIS device 1 for filling sulfur hexafluoride gas at adjacent multiple intervals takes air valve 2 by gas by GIS device gas Take out, and these gas samples are concentrated into online chromatographic analysis device 3 by the catabolite on Pipeline transport to monitoring platform, these F6S gas samples can be analyzed according to the program of setting into chromatograph, and catabolite concentrates online chromatographic analysis device 3, online Superfrequency office puts the data-out port connection Monitoring Data process of device 5 and analyzes backstage 4 and is monitored, at Monitoring Data In reason and analysis backstage, it is mounted with to concentrate chromatographic analysis device, online superfrequency office to put device analysis number online by catabolite The expert diagnostic system that GIS device office puts is judged according to combining, the latency shelf depreciation in GIS device is carried out accurately pre- Sentence, it is possible to electric discharge type, discharge position, discharge capacity size of real-time monitoring GIS equipment partial discharge etc..
Online superfrequency office puts device and puts sensor for online superfrequency office in the present embodiment；Catabolite concentrates online color Analysis of spectrum device is that sulfur hexafluoride decomposer concentrates analytical chromatograph.
As shown in figure 1, install sulfur hexafluoride decomposer to concentrate the position of analytical chromatograph is adjacent multiple in GIS device Sulfur hexafluoride gas in a shared monitoring platform, these intervals concentrate on monitoring platform by probe tube, and Chromatograph is being filled in air-conditioned fixed board house；In Monitoring Data process and analysis backstage, it is mounted with by lithium sulphur content Solution thing concentrates online chromatogram analysis data, online superfrequency office to put analyze data and combine to judge that the expert that GIS device office puts examines Disconnected system, online superfrequency office therein puts sensor and is mounted on the tube wall in GIS device.
Claims (4)
1. a kind of sulfur hexafluoride concentrates analysis and the method that judgement office puts is combined with superfrequency, it is characterised in that methods described bag
Include：
Sulfur hexafluoride gas in the GIS device at adjacent multiple intervals are carried out with online concentration to sample；
Catabolite concentrates online chromatographic analysis device to carry out on-line chromatograph analysis to the catabolite for sampling；
When device monitoring is put to questionable signal in concentration chromatographic analysis device online to catabolite or online superfrequency office, to GIS
Latency shelf depreciation in equipment carries out accurate anticipation.
2. according to claim 1 a kind of sulfur hexafluoride concentrates analysis and the method that judgement office puts is combined with superfrequency, described
The sulfur hexafluoride that method is adopted concentrates analysis and judgement office place system is combined with superfrequency includes that the GIS for filling sulfur hexafluoride gas sets
Standby, GIS device gas take air valve, catabolite concentrate online chromatographic analysis device, Monitoring Data process and analyze backstage and
Device is put in online superfrequency office；GIS device gas takes the GIS device that air valve fills sulfur hexafluoride gas by pipeline connection；And
By the F of collection6S gas samples concentrate online chromatographic analysis device to be analyzed by Pipeline transport to catabolite；Catabolite exists
Line concentrates chromatographic analysis device that analysis result is delivered to into Monitoring Data and processes and analyze backstage；It is arranged on and fills sulfur hexafluoride gas
Online superfrequency office in GIS device puts device and connects Monitoring Data process by wire and analyze backstage；Monitoring Data process
And the expert diagnostic system software on analysis backstage, accurate anticipation is carried out to the latency shelf depreciation in GIS device, and supervise in real time
Survey electric discharge type, discharge position and the discharge capacity size of GIS equipment partial discharge.
3. according to claim 1 a kind of sulfur hexafluoride concentrates analysis and the method that judgement office puts is combined with superfrequency, described
Anticipation includes whether the equipment in GIS occurs the affiliated type of shelf depreciation or electric discharge：
（1）Free metal particle discharges：When signal numerical value that device to test goes out is put higher than background value, monitoring figure in online superfrequency office
When spectrum is tentatively judged as that free metal particle discharges, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2With
SOF20.5 L/L is all higher than, and contains metal fluoride, be then judged as that free metal particle discharges；
（2）Floating potential discharge：
When online superfrequency office puts, the discharge pulse amplitude stability that device to test goes out, numerical value are larger, and electric discharge collection of illustrative plates is tentatively judged as
During floating potential discharge, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2And SOF21.0 L/L are all higher than,
And SOF2Content compare SO2F2Greatly, then it is judged as floating potential discharge；
（3）Insulating part internal air gap or creeping discharge：
When online superfrequency office puts, the discharge pulse amplitude dispersiveness that device to test goes out is larger, and electric discharge collection of illustrative plates is tentatively judged as insulation
When part internal air gap or creeping discharge, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2And SOF2It is all higher than
0.5 L/L, and contain CF4, then it is judged as insulating part internal air gap or creeping discharge；
（4）Metal tip is discharged：
When online superfrequency office puts, the discharge time interval that device to test goes out is uniform, and discharge time is more, and collection of illustrative plates is tentatively judged as
When metal tip is discharged, catabolite concentrates online the SO that chromatographic analysis device is monitored2、SO2F2And SOF21.0 L/L are all higher than,
And SOF2Content compare SO2F2Greatly, containing metal fluoride, then it is judged as that metal tip is discharged.
4. according to claim 1 a kind of sulfur hexafluoride concentrates analysis and the method that judgement office puts is combined with superfrequency, described
Online superfrequency office puts device and puts sensor to be mounted on GIS device inner tubal wall online superfrequency office；The catabolite is online
Chromatographic analysis device is concentrated to be that sulfur hexafluoride decomposer concentrates analytical chromatograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940320.4A CN106569107B (en) | 2016-11-02 | 2016-11-02 | A kind of sulfur hexafluoride concentrates the method for analyzing and judging in conjunction with superfrequency partial discharge |
Applications Claiming Priority (1)
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