CN201740843U - SF6 equipment electrical failure location device - Google Patents
SF6 equipment electrical failure location device Download PDFInfo
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- CN201740843U CN201740843U CN2010201957277U CN201020195727U CN201740843U CN 201740843 U CN201740843 U CN 201740843U CN 2010201957277 U CN2010201957277 U CN 2010201957277U CN 201020195727 U CN201020195727 U CN 201020195727U CN 201740843 U CN201740843 U CN 201740843U
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Abstract
The utility model discloses an SF6 equipment electrical failure location device consisting of a gas sampling part and a gas detection processing part, wherein the gas sampling part comprises a self-sealing air inlet (1), a measuring pipe (2), an automatic flow control valve (3), a pressure sensor (4), a humidity sensor (5), a standard replacing module (6), a flow sensor (7) and a self-sealing air outlet (8); the gas detection processing part comprises a power supply module (9) and a signal processing plate (14); the automatic flow control valve (3) is arranged on the measuring pipe (2) between the self-sealing air inlet (1) and the pressure sensor (4); the self-sealing air inlet (1), the automatic flow control valve (3), the pressure sensor (4), the humidity sensor (5), the standard replacing module (6), the flow sensor (7) and the self-sealing air outlet (8) are connected with the signal processing plate (14) through cables respectively; and the power supply module (9) supplies power for the signal processing plate (14). The device is applicable for electrical equipment failure monitoring and diagnosis using SF6 gas as the insulation and extinguishing medium in the electrical power system, and can fast locate the failure cause of a failure gas chamber and an aided analysis gas chamber.
Description
Technical field
The utility model belongs to a kind of SF
6The electrical equipment failure locating device specifically is a kind of SF that comprises expert diagnostic system based on multisensor
6The electrical equipment failure locating device.
Background technology
SF
6Because of its superior insulation, arc-extinguishing medium are widely used in the high voltage electric equipment.Along with developing rapidly of domestic power industry, from eighties of last century after the eighties, SF
6Electrical equipment replaces traditional oil-filled electrical equipment gradually, for safety and stability, the economical operation of electric system obtains good effect.But, therefore in time detect SF because equipment has influenced the normal operation of equipment, even led to a disaster in some defective that aspects such as design, manufacturing, installation and operation maintenance exist
6The inside electric appliance defective has crucial meaning to the safe operation of assurance equipment and electrical network.Detect SF early
6Electrical equipment malfunction improves and sends out power supply reliability and judge SF
6Whether electrical equipment needs to overhaul is the major issue that power department is paid close attention to.At present, the early diagnosis SF for how
6Electrical equipment malfunction, traditional electrical test method seems unable to do what one wishes sometimes.By detecting SF
6The content of other gases judges whether electrical equipment breaks down in the electrical equipment.Diagnosing electrical equipment malfunction with this, is following developing direction, and huge market potential and using value are arranged
SF
6Decomposition product during the inside electric appliance fault mainly is sulfide and fluoride.Sulfide mainly contains SO
2, H
2S, SF
4, SO2F
2, SOF
2Deng; Fluoride mainly contains HF, CF
4And metal fluoride.Remove SO in the above-mentioned analyte
2, H
2Outside S and CF4 toxicity were little, other all is a violent in toxicity, and was few at the content of device interior, unstable again, wherein SF
4, SOF
2Deng again can hydrolysis producing stable SO
2And HF, therefore, the SO of detection
2Concentration is the total amount of directly decomposition and hydrolysate.H
2S is the characteristic component that solid insulating material decomposes, and just can produce when the fault energy is big.HF corrosivity is very strong, sensor costliness, life-span weak point, and the on-the-spot necessity that detects is not very big.CF
4Whether the 200 μ l/L content of having an appointment in new gas decompose if estimate insulating material with the added value of so big content, and its reliability just greatly reduces.Along with the widespread use of GIS, the new detection method and the raising of detection means, SF
6The gas discharge decomposition component detects and analyzes and certainly will will become SF
6A kind of effective means of electrical equipment malfunction monitoring and diagnosis.Purpose as preventive trial is to detect inherent vice in early days, therefore there is no need at the scene also can not all analyze various pyrolysis products but not carry out comprehensive diagnos.
The utility model content
The utility model purpose is the defective that exists at prior art, and mainly by the detection of gas sample laboratory, sense cycle is long for classic method, can not on-line measurement; Or adopt non-exchange structure, and sensor is easily poisoned, and device must return more emat sensor of factory; Shortcomings such as no intelligent expert system and the device developed.
The utility model adopts following technical scheme for achieving the above object:
The utility model SF
6The electrical equipment failure locating device, comprise gas sample part and gas detection processing section, wherein gas sampling partly comprises the self-sealing air intake opening, measuring channel, automatic flow control valve, pressure transducer, humidity sensor, standard is changed module, flow sensor, the self-sealing gas outlet, the gas detection processing section comprises supply module and signal-processing board, the self-sealing air intake opening is connected in series pressure transducer successively by measuring channel, humidity sensor, standard is changed module, flow sensor, the self-sealing gas outlet, on the measuring channel between self-sealing air intake opening and the pressure transducer automatic flow control valve is set, the self-sealing air intake opening, automatic flow control valve, pressure transducer, humidity sensor, standard is changed module, flow sensor links to each other with signal-processing board 14 by cable respectively with the self-sealing gas outlet, and supply module is powered to signal-processing board.
Preferably, described standard replacing module comprises SO
2Sensor, preamplification board, H
2S sensor, harmful gas filter chamber and standard are changed module by signal interface, SO
2Sensor is by measuring channel and H
2The S sensor links to each other, SO
2Sensor links to each other with preamplification board by cable, H
2The S sensor links to each other H by measuring channel with the harmful gas filter chamber
2The S sensor links to each other with preamplification board by cable, and preamplification board is changed module by signal interface (19) back by standard and is connected with signal-processing board by cable.
Preferably; described supply module comprises lithium battery group, battery protecting plate, charging panel and voltage finishing plate; external power source links to each other with charging panel by power supply interface; charging panel links to each other with battery protecting plate by cable; battery protecting plate is by cable and lithium battery group connecting plate mutually; the lithium battery group links to each other with battery protecting plate by cable, and battery protecting plate links to each other with the voltage finishing plate by cable, and the voltage finishing plate links to each other with signal-processing board by cable.
Preferably, touch-screen and display screen are set also on the described signal-processing board, signal-processing board is connected with display screen with touch-screen respectively.
The utility model passes through SO
2And H
2The detection of S, humidity, thus diagnose out the device interior fault.The main application: localization of fault, the customary detection, monitoring is put in office, and monitoring is filtered in gas purification, and the fault high-voltage contact is checked, SF
6Decomposition product detects, and checks the generation of decomposition product in the switch.
Compared with prior art the utlity model has following advantage:
A) SF
6The self-sealing structure is adopted in electrical equipment failure locating device gas sampling partial-air admission, gas outlet, can guarantee that in non-measurement state sampling section and isolate from outer air sampling sensor is in optimum condition.
B) SF
6Automatic flow control valve is partly adopted in the gas sampling of electrical equipment failure locating device, can regulate the air inflow size automatically under the duty, simple operation, and can reduce the consumption of measurement gas, and can reduce pollution.
C) SF
6Electrical equipment failure locating device sampling section employing standard is changed module, and this module electric interfaces, external dimensions unification can be changed under sensor poisoning situation, and contain the gas purification drying device in this module.Can absorb SO in working order
2H
2The S toxic gas, the drying of maintenance gas piping under off working state.
D) SF6 electrical equipment failure locating device signal-processing board 14 expert diagnostic system that has part ownership, can be the site operation personnel provides the trouble spot of science to judge.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that standard is changed module diagram;
Fig. 3 is the supply module synoptic diagram.
Number in the figure: 1, self-sealing air intake opening 2, measuring channel 3, automatic flow control valve 4, pressure transducer 5, humidity sensor 6, standard are changed module 7, flow sensor 8, self-sealing gas outlet 9, supply module 10, power supply interface 11, touch-screen 12, are uploaded interface 13, display screen 14, signal-processing board 15, SO
2Sensor 16, preamplification board 17, H
2S sensor, 18, harmful gas filter chamber 19, standard are changed module by signal interface 20, lithium battery group 21, battery protection plate 22, charging panel, 23 voltage finishing plates.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to utility model:
As shown in Figure 1, SF
6The electrical equipment failure locating device comprises the gas sample part, the gas detection processing section.Gas sampling partly comprises self-sealing air intake opening 1, measuring channel 2, automatic flow control valve 3, pressure transducer 4, humidity sensor 5, standard replacing module 6, flow sensor 7, self-sealing gas outlet 8.Self-sealing air intake opening 1 links to each other with automatic flow control valve 3 by measuring channel 2, self-sealing air intake opening 1 links to each other with signal-processing board 14 by cable by the cable automatic flow control valve 3 that links to each other with signal-processing board 14, automatic flow control links to each other with pressure transducer 4 by measuring channel 2, pressure transducer 4 links to each other with signal-processing board 14 by cable, pressure transducer 4 links to each other with humidity sensor 5 by measuring channel 2, humidity sensor 5 links to each other with signal-processing board 14 by cable, standard is changed module 6 and is linked to each other with flow sensor 7 by measuring channel 2, gas standard is changed module 6 and is linked to each other with signal-processing board 14 by cable, flow sensor 7 is by measuring channel 2 and self-sealing gas outlet 8, flow sensor 7 links to each other with signal-processing board 14 by cable, and self-sealing gas outlet 8 links to each other with signal-processing board 14 by cable.The gas detection processing section comprises supply module 9, power supply interface 10, touch-screen 11, upload interface 12, display screen 13, signal-processing board 14, power supply interface 10 links to each other with supply module 9 by cable, supply module 9 is by cable and signal-processing board 14, and link to each other with display screen 13 touch-screens 11 by signal-processing board 14, signal-processing board 14 is by cable and self-sealing air intake opening 1, measuring channel 2, automatic flow control valve 3, pressure transducer 4, humidity sensor 5, standard is changed module 6, flow sensor 7, self-sealing gas outlet 8, supply module 9, touch-screen 11, upload interface 12, display screen 13 links to each other.
Each sensor signal by cable entering signal disposable plates 14 by amplification, analog-to-digital conversion process, enter expert diagnostic system, provide failure-description, data are shown, store and can upload by uploading interface 12.Signal processing module carries out charge flow rate by cable control automatic flow control valve 3 to be regulated, and controls the break-make of self-styled air intake opening 1, self-sealing gas outlet 8, guarantees to measure the sealing of pipeline 2.
Standard replacing module comprises SO as shown in Figure 2
2Sensor 15, preamplification board 16, H
2S sensor 17, harmful gas filter chamber 18, standard are changed module by signal interface 19, SO
2Sensor 15 is by measuring channel 2 and H
2S sensor 17 links to each other SO
2Sensor 15 links to each other with preamplification board 16 by cable.H
2S sensor 17 links to each other H by measuring channel 2 with harmful gas filter chamber 18
2S sensor 17 links to each other with preamplification board 16 by cable, and preamplification board 16 is changed module by signal interface 19 backs by standard and is connected 14 by cable with signal-processing board.SO
2Sensor 15 and H
2S sensor 17 signals are nursed one's health into unified signal entering signal disposable plates 14 by the circuit on the preamplification board 16 and are handled, and gas to be measured enters harmful gas filter chamber 18 by measuring channel 2, and is measurable simultaneously to SO
2, H
2S gas carries out a certain amount of absorption to be handled, and reduces the pollution to environment.
Supply module shown in Figure 3 comprises lithium battery group 20, charging panel 22, voltage finishing plate 23, battery protecting plate 21.Power supply interface 10 links to each other with charging panel 22 by cable, and charging panel 22 links to each other with battery protecting plate 21 by cable, and battery protecting plate 21 is by cable and lithium battery group 20 connecting plate mutually.Lithium battery group 20 links to each other with battery protecting plate 21 by cable, and battery protecting plate 21 links to each other with voltage finishing plate 23 by cable, and voltage finishing plate 23 links to each other with signal-processing board 14 by cable.Electric current enters charging panel 22 by power supply interface 10 between charge period; enter battery protection 21 to 20 chargings of lithium battery group through the overcommutation step-down; electric current enters voltage finishing plate 23 by lithium battery group 20 through battery protecting plate 21 during the power supply, by giving signal-processing board 14 power supplies to handling.
Claims (4)
1. SF
6The electrical equipment failure locating device, it is characterized in that: comprise gas sample part and gas detection processing section, wherein gas sampling partly comprises self-sealing air intake opening (1), measuring channel (2), automatic flow control valve (3), pressure transducer (4), humidity sensor (5), standard is changed module (6), flow sensor (7), self-sealing gas outlet (8), the gas detection processing section comprises supply module (9) and signal-processing board (14), self-sealing air intake opening (1) is connected in series pressure transducer (4) successively by measuring channel (2), humidity sensor (5), standard is changed module (6), flow sensor (7), self-sealing gas outlet (8), on the measuring channel (2) between self-sealing air intake opening (1) and the pressure transducer (4) automatic flow control valve (3) is set, self-sealing air intake opening (1), automatic flow control valve (3), pressure transducer (4), humidity sensor (5), standard is changed module (6), flow sensor (7) links to each other with signal-processing board 14 by cable respectively with self-sealing gas outlet (8), and supply module (9) is given signal-processing board (14) power supply.
2. SF according to claim 1
6The electrical equipment failure locating device is characterized in that: described standard is changed module (6) and is comprised SO
2Sensor (15), preamplification board (16), H
2S sensor (17), harmful gas filter chamber (18) and standard are changed module by signal interface (19), SO
2Sensor (15) is by measuring channel (2) and H
2S sensor (17) links to each other, SO
2Sensor (15) links to each other H by cable with preamplification board (16)
2S sensor (17) links to each other H by measuring channel (2) with harmful gas filter chamber (18)
2S sensor (17) links to each other with preamplification board (16) by cable, and preamplification board (16) is changed module by signal interface (19) back by standard and is connected with signal-processing board (14) by cable.
3. SF according to claim 1
6The electrical equipment failure locating device; it is characterized in that: described supply module (9) comprises lithium battery group (20); battery protecting plate (21); charging panel (22) and voltage finishing plate (23); external power source links to each other with charging panel (22) by power supply interface (10); charging panel (22) links to each other with battery protecting plate (21) by cable; battery protecting plate (21) is by cable and lithium battery group (20) connecting plate mutually; lithium battery group (20) links to each other with battery protecting plate (21) by cable; battery protecting plate (21) links to each other with voltage finishing plate (23) by cable, and voltage finishing plate (23) links to each other with signal-processing board (14) by cable.
4. according to the described SF of claim 1 to 3
6The electrical equipment failure locating device is characterized in that: touch-screen (11) and display screen (13) also are set on the described signal-processing board (14), and signal-processing board (14) is connected with display screen (13) with touch-screen (11) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201957277U CN201740843U (en) | 2010-05-18 | 2010-05-18 | SF6 equipment electrical failure location device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201957277U CN201740843U (en) | 2010-05-18 | 2010-05-18 | SF6 equipment electrical failure location device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740843U true CN201740843U (en) | 2011-02-09 |
Family
ID=43556121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201957277U Expired - Lifetime CN201740843U (en) | 2010-05-18 | 2010-05-18 | SF6 equipment electrical failure location device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794089A (en) * | 2019-10-22 | 2020-02-14 | 国网浙江省电力有限公司绍兴供电公司 | Rapid detector and method for gas marker decomposition products after SF6 equipment failure |
| CN112415342A (en) * | 2020-11-04 | 2021-02-26 | 广西电网有限责任公司桂林供电局 | Intermediate joint system and partial discharge monitoring method |
-
2010
- 2010-05-18 CN CN2010201957277U patent/CN201740843U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794089A (en) * | 2019-10-22 | 2020-02-14 | 国网浙江省电力有限公司绍兴供电公司 | Rapid detector and method for gas marker decomposition products after SF6 equipment failure |
| CN112415342A (en) * | 2020-11-04 | 2021-02-26 | 广西电网有限责任公司桂林供电局 | Intermediate joint system and partial discharge monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |