CN105067979A - SF6 electrical equipment partial discharge decomposition product comprehensive detector and control method thereof - Google Patents
SF6 electrical equipment partial discharge decomposition product comprehensive detector and control method thereof Download PDFInfo
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- CN105067979A CN105067979A CN201510484705.XA CN201510484705A CN105067979A CN 105067979 A CN105067979 A CN 105067979A CN 201510484705 A CN201510484705 A CN 201510484705A CN 105067979 A CN105067979 A CN 105067979A
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Abstract
The invention relates to an SF6 electrical equipment partial discharge decomposition product comprehensive detector and a control method thereof. The detector comprises a partial discharge detection module and a decomposition product detection module. The partial discharge detection module comprises a partial discharge sensor, a noise sensor and a signal processing unit. The partial discharge sensor is arranged to the corresponding place of detected equipment, and the signal is sent to the processing unit. The decomposition product detection module comprises a gas-guide tube, a flow regulation unit and an electrochemical detection unit. An exhaust port of the detected equipment is connected with the gas-guide tube, and the gas-guide tube guides the gas to the instrument and is connected to the electrochemical detection unit through the flow regulation unit; the partial discharge signal processing unit and the electrochemical detection unit are connected to a main board unit; the main board unit obtains detection data and analysis opinions correspondingly according to information input by a user; and a display unit displays the detection result. The partial discharge detection technology and decomposition product detection technology are organically combined and are subjected to comprehensive diagnosis, so that detection rate of internal faults is improved effectively, and scientific basis is provided for condition-based maintenance of the equipment.
Description
Technical field
The present invention relates to a kind of SF
6analyte comprehensive detector and control method thereof are put in electrical equipment office.
Background technology
As everyone knows, SF
6the insulating material such as gas and epoxy resin, teflon and tygon have the insulating property of good chemical stability and excellence, high voltage electric equipment is widely used in after the eighties from last century, as insulation and arc-extinguishing medium, effectively improve the safety and economic operation of electrical production.But owing to there are some weak links in the design of equipment, material, mounting process and operation maintenance etc., make equipment may there are some insulation defects, and detection means conventional is at present difficult to be detected, after putting equipment in service, under heat and electric effect, insulation reduces gradually, defect constantly expands, until have an accident, seriously threaten the safety and economic operation of electrical production, cause bad social influence.
Shelf depreciation is because non-uniform electric or solid insulation air entrapment, crackle, surface contamination etc. cause the electric discharge phenomena in insulating medium in subrange in the insulation system of electrical equipment, shelf depreciation is the important sign of insulation ag(e)ing, it is the important indicator of reflection insulation of electrical installation state, the sensitivity of shelf depreciation is very high, inner low-yield insulation hidden danger can be detected, be widely applied in electric system.But due to substation field circumstance complication, there is various Electromagnetic Interference, had a strong impact on its stability and accuracy, make it apply and bring negative effect.Decomposition product to be reflection insulating material occur when overheated or electric discharge chemical reaction and the characteristic component that produces, the good stability that analyte detects, sensitivity is also higher, and the accuracy rate of failure judgement is high, causes the great attention of power industry.Partial Discharge Detecting Technology Sum decomposition quality testing survey technology is organically combined by the present invention, from electrically carrying out comprehensive diagnos with chemical two aspects, the recall rate of the inner Hidden fault of effective raising, for the State Maintenance of equipment provides scientific basis, its application will improve SF effectively
6the safety and economic operation of electrical equipment, brings huge social economic effect, has good application prospect.
Summary of the invention
The object of the present invention is to provide a kind of SF
6analyte comprehensive detector and control method thereof are put in electrical equipment office, to overcome existing defects in prior art.
For achieving the above object, technical scheme of the present invention is: a kind of SF
6analyte comprehensive detector is put in electrical equipment office, comprises Partial Discharge Detection module Sum decomposition thing detection module; The Partial discharge signal processing unit that described Partial Discharge Detection module comprises local discharge sensor, noise transducer and is connected with described noise transducer with described local discharge sensor; Described analyte detection module comprises the wireway, flow regulating unit and the Electrochemical Detection unit that are connected with tested electrical equipment exhausr port; Described wireway is connected to described Electrochemical Detection unit through described flow regulating unit; Described Partial discharge signal processing unit and described Electrochemical Detection unit are all connected to board unit.
In an embodiment of the present invention, described Electrochemical Detection unit also comprises a gas outlet; Described gas outlet is connected with described Electrochemical Detection unit, discharges for the gas that will enter after described Electrochemical Detection unit inspection.
In an embodiment of the present invention, also display unit is comprised; Described display unit is connected with described board unit.
In an embodiment of the present invention, also power supply unit is comprised; Described power supply unit is connected with described Partial discharge signal processing unit, described Electrochemical Detection unit, described display unit and described board unit respectively.
Further, in an embodiment of the present invention, a kind of SF is also provided
6the control method of analyte comprehensive detector is put in electrical equipment office, realizes in accordance with the following steps:
Step S1: place noise transducer at tested electrical equipment place, on the periphery of tested electrical equipment disc insulator or switch cubicle surface local discharge sensor is set, and respectively noise transducer and local discharge sensor are connected to Partial discharge signal processing unit; Wireway is connected to tested electrical equipment exhausr port, detected gas is introduced instrument, be connected to Electrochemical Detection unit through flow regulating unit;
Step S2: judge the key entry information of user with described Partial discharge signal processing unit and the described Electrochemical Detection unit project detection module be connected in board unit respectively, if described key entry information is office put detection, then proceed to step S3; Detect if described key entry information is analyte, then proceed to step S4; Put the survey of detection Sum decomposition quality testing if described key entry information is office, then proceed to step S5;
Step S3: described board unit obtains the Partial Discharge Data after process by described Partial discharge signal processing unit, and the comprehensive analysis module in described board unit is analyzed, generates Analysis of Partial Discharge suggestion, and is stored to memory module; Described display unit obtains Analysis of Partial Discharge suggestion through described memory module, and testing result is put in display office;
Step S4: described board unit obtains the analyte after process by described Electrochemical Detection unit and detects data, and the comprehensive analysis module in described board unit is analyzed, and generates analyte and analyzes suggestion, and be stored to memory module; Described display unit obtains analyte through described memory module and analyzes suggestion, and shows analyte testing result;
Step S5: described board unit obtains the Partial Discharge Data after process respectively by described Partial discharge signal processing unit and described Electrochemical Detection unit correspondence and analyte detects data, comprehensive analysis module in described board unit is analyzed, corresponding generation Analysis of Partial Discharge suggestion and analyte analyze suggestion, and are stored to memory module; Described display unit obtains Analysis of Partial Discharge suggestion through described memory module and analyte analyzes suggestion, and testing result Sum decomposition thing testing result is put in display office.
In an embodiment of the present invention, in described step S3 and described step S5, described Partial discharge signal processing unit obtains noise signal and local discharge signal from the described noise transducer of acquisition and described local discharge sensor correspondence respectively, and compares through described Partial discharge signal processing unit, filtering, generates described Partial Discharge Data after amplification and data processing; This Partial Discharge Data comprises: electric discharge amplitude, discharge time and PHASE DISTRIBUTION.
In an embodiment of the present invention, in described step S4 and described step S5, the tested gas obtained through described wireway and described flow regulating unit is carried out electrochemical signals conversion process by described Electrochemical Detection unit, generates described analyte and detects data; This analyte detects data and comprises: analyte kind and analyte content.
In an embodiment of the present invention, in described step S3 to described step S5, default normal Partial Discharge Data in described Partial Discharge Data or described analyte detection data and described memory module or default normal analyte are detected data and compare by described integerated analytic unit, corresponding generation partial discharges fault reference information or analyte fault reference information; Described integerated analytic unit is according to partial discharges fault reference information or analyte fault reference information correspondence generates Analysis of Partial Discharge suggestion or analyte analyzes suggestion.
In an embodiment of the present invention, described partial discharges fault reference information comprises: partial discharges fault character, partial discharges fault energy and partial discharges fault position; Described analyte fault reference information comprises: analyte nature of trouble, analyte fault energy and analyte abort situation.
Compared to prior art, the present invention has following beneficial effect: SF proposed by the invention
6analyte comprehensive detector and control method thereof are put in electrical equipment office, Partial Discharge Detecting Technology Sum decomposition quality testing survey technology is organically combined, from electrically carrying out comprehensive diagnos with chemical two aspects, the recall rate of the inner Hidden fault of effective raising, for the State Maintenance of equipment provides scientific basis, its application will improve SF effectively
6the safety and economic operation of electrical equipment, brings huge social economic effect, has good application prospect.
Accompanying drawing explanation
Fig. 1 is a kind of SF in the present invention
6the theory diagram of analyte comprehensive detector is put in electrical equipment office.
Fig. 2 is a kind of SF in the present invention
6the theory diagram of board unit in analyte comprehensive detector is put in electrical equipment office.
[label declaration]: sensor is put in 1-office; 2-noise transducer; 3-Partial discharge signal processing unit; 4-wireway; 5-flow regulating unit; 6-gas outlet; 7-Electrochemical Detection unit; 8-board unit; 9-display unit; 10-power supply unit.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is specifically described.
The invention provides a kind of SF
6analyte comprehensive detector is put in electrical equipment office, as shown in Figure 1, comprises Partial Discharge Detection module Sum decomposition thing detection module.
Described Partial Discharge Detection module comprises on the periphery establishing and be positioned over tested electrical equipment disc insulator or the local discharge sensor 1 on switch cubicle surface, the noise transducer 2 being positioned over tested electrical equipment place and the Partial discharge signal processing unit 3 be connected with noise transducer with local discharge sensor respectively.In the present embodiment, noise transducer 2 is steadily positioned over tested near electrical equipment.Office puts the office that sensor comprises ultrahigh frequency, ultrasound wave, high-frequency current and the transient state ground types such as electric wave and puts sensor.
Described analyte detection module comprises the wireway 4, flow regulating unit 5 and the Electrochemical Detection unit 7 that are connected with tested electrical equipment exhausr port; Described wireway 4 is connected to Electrochemical Detection unit 7 through flow regulating unit 5; Described Partial discharge signal processing unit 3 and described Electrochemical Detection unit 7 are all connected to board unit 8.
Further, in the present embodiment, as shown in Figure 1, described analyte detection module also comprises gas outlet 6; Described exhaust unit 6 is connected with described Electrochemical Detection unit 7, discharges for the gas after being detected by Electrochemical Detection unit 7.
Further, in the present embodiment, as shown in Figure 1, display unit 9 is also comprised; Described display unit 9 is connected with described board unit 8.
Further, in the present embodiment, as shown in Figure 1, also comprise power supply unit 10 to be connected with Partial discharge signal processing unit 3, Electrochemical Detection unit 7, board unit 8 and display unit 9 respectively.
Further, in the present embodiment, a kind of SF is also provided
6the control method of analyte comprehensive detector is put in electrical equipment office, and adopt Partial Discharge Detecting Technology, it is highly sensitive, by detecting the size of local discharge signal, quantity and PHASE DISTRIBUTION, judges discharge energy and character.Analyte detection technique is adopted to detect SO in gas
2, H
2s and CO equal size, its good stability, by detecting kind and the content size of analyte, can the accurately energy of failure judgement, character and may position, as shown in Figure 2, specifically realize in accordance with the following steps:
Step S1: on the periphery of tested electrical equipment GIS disc insulator or switch cubicle surface place local discharge sensor 1, steadily place noise transducer 2 at tested electrical equipment place, and respectively local discharge sensor 1 and noise transducer 2 are connected to Partial discharge signal processing unit 3; Connect wireway 4 at tested electrical equipment exhausr port, another termination instrument air intake opening of wireway 4, detect gas and enter Electrochemical Detection unit 7 through flow regulating unit 5;
Step S2: the project detection module in the board unit 8 be connected with described Partial discharge signal processing unit 3 and described Electrochemical Detection unit 7 respectively, judge that user keys in information, if key entry information is office put detection, then proceed to step S3, detect if described key entry information is analyte, then proceed to step S4, put the survey of detection Sum decomposition quality testing if described key entry information is office, then proceed to step S5; In the present embodiment, project detection module provides a key entry interface for keying in, and user, according to " test item " prompting, selects " office puts ", " analyte " or "-analyte is put in office ";
Step S3: described board unit obtains the Partial Discharge Data after process by described Partial discharge signal processing unit, and the comprehensive analysis module in described board unit is analyzed, generates Analysis of Partial Discharge suggestion, and is stored to memory module; By display unit display, testing result is put in office;
Step S4: described board unit obtains the analyte after process by described Electrochemical Detection unit and detects data, and the comprehensive analysis module in described board unit is analyzed, and generates analyte and analyzes suggestion, and be stored to memory module; Analyte testing result is shown by display unit;
Step S5: described board unit obtains the Partial Discharge Data after process respectively by described Partial discharge signal processing unit and described Electrochemical Detection unit correspondence and analyte detects data, comprehensive analysis module in described board unit is analyzed, corresponding generation Analysis of Partial Discharge suggestion and analyte analyze suggestion, and Analysis of Partial Discharge data and analyte analysis data are stored to memory module; Sum decomposition thing testing result is put by display unit display office.
Further, in the present embodiment, in described step S3 and described step S5, in described step S3 and described step S5, described Partial discharge signal processing unit obtains noise signal and local discharge signal from the described noise transducer of acquisition and described local discharge sensor correspondence respectively, and compares through described Partial discharge signal processing unit, filtering, generates described Partial Discharge Data after amplification and data processing; This Partial Discharge Data comprises: electric discharge amplitude, discharge time and PHASE DISTRIBUTION.
Further, in the present embodiment, in described step S4 and described step S5, described Electrochemical Detection unit 7 by the analyte in the tested gas that obtains through described wireway 4 and described flow regulating unit 5, as SO
2, H
2s and CO etc. carry out electrochemical signals, convert corresponding electric signal to, and generate described analyte detection data, and after detecting, gas is discharged from gas outlet 6; This analyte detects data and comprises: analyte kind and analyte content.
Further, in the present embodiment, in described step S3 to described step S5, default normal Partial Discharge Data in described Partial Discharge Data or described analyte detection data and described memory module or default normal analyte are detected data and compare by described integerated analytic unit, corresponding generation partial discharges fault reference information or analyte fault reference information; In the present embodiment, the office in integerated analytic unit puts analytic unit and electric discharge amplitude, discharge time and the PHASE DISTRIBUTION in Partial Discharge Data is compared analysis with the regular picture amplitude preset in normal Partial Discharge Data, regular picture number of times and normal PHASE DISTRIBUTION respectively.Analyte analytic unit in integerated analytic unit analyte is detected analyte kind in data and analyte content respectively with preset normal analyte and detect the kind of the normal analyte in data and normal contents size thereof and carry out analysis and judge.Described integerated analytic unit generates Analysis of Partial Discharge suggestion or electrochemical analysis suggestion according to partial discharges fault reference information or analyte fault reference information correspondence.
Further, in the present embodiment, described partial discharges fault reference information comprises: partial discharges fault character, partial discharges fault energy and partial discharges fault position; Described analyte fault reference information comprises: analyte nature of trouble, analyte fault energy and analyte abort situation.
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (9)
1. a SF
6analyte comprehensive detector is put in electrical equipment office, it is characterized in that, comprises Partial Discharge Detection module Sum decomposition thing detection module; The Partial discharge signal processing unit that described Partial Discharge Detection module comprises local discharge sensor, noise transducer and is connected with described noise transducer with described local discharge sensor; Described analyte detection module comprises the wireway, flow regulating unit and the Electrochemical Detection unit that are connected with tested electrical equipment exhausr port; Described wireway is connected to described Electrochemical Detection unit through described flow regulating unit; Described Partial discharge signal processing unit and described Electrochemical Detection unit are all connected to board unit.
2. SF according to claim 1
6analyte comprehensive detector is put in electrical equipment office, it is characterized in that, described Electrochemical Detection unit also comprises a gas outlet; Described gas outlet is connected with described Electrochemical Detection unit, discharges for the gas that will enter after described Electrochemical Detection unit inspection.
3. SF according to claim 1
6analyte comprehensive detector is put in electrical equipment office, it is characterized in that, also comprises display unit; Described display unit is connected with described board unit.
4. SF according to claim 3
6analyte comprehensive detector is put in electrical equipment office, it is characterized in that, also comprises power supply unit; Described power supply unit is connected with described Partial discharge signal processing unit, described Electrochemical Detection unit, described display unit and described board unit respectively.
5. one kind based on the SF described in any one of Claims 1-4
6the control method of analyte comprehensive detector is put in electrical equipment office, it is characterized in that, realizes in accordance with the following steps:
Step S1: place noise transducer at tested electrical equipment place, on the periphery of tested electrical equipment disc insulator or switch cubicle surface local discharge sensor is set, and respectively noise transducer and local discharge sensor are connected to Partial discharge signal processing unit; Wireway is connected to tested electrical equipment exhausr port, detected gas is introduced instrument, be connected to Electrochemical Detection unit through flow regulating unit;
Step S2: judge the key entry information of user with described Partial discharge signal processing unit and the described Electrochemical Detection unit project detection module be connected in board unit respectively, if described key entry information is office put detection, then proceed to step S3; Detect if described key entry information is analyte, then proceed to step S4; Put the survey of detection Sum decomposition quality testing if described key entry information is office, then proceed to step S5;
Step S3: described board unit obtains the Partial Discharge Data after process by described Partial discharge signal processing unit, and the comprehensive analysis module in described board unit is analyzed, generates Analysis of Partial Discharge suggestion, and is stored to memory module; Described display unit obtains Analysis of Partial Discharge suggestion through described memory module, and testing result is put in display office;
Step S4: described board unit obtains the analyte after process by described Electrochemical Detection unit and detects data, and the comprehensive analysis module in described board unit is analyzed, and generates analyte and analyzes suggestion, and be stored to memory module; Described display unit obtains analyte through described memory module and analyzes suggestion, and shows analyte testing result;
Step S5: described board unit obtains the Partial Discharge Data after process respectively by described Partial discharge signal processing unit and described Electrochemical Detection unit correspondence and analyte detects data, comprehensive analysis module in described board unit is analyzed, corresponding generation Analysis of Partial Discharge suggestion and analyte analyze suggestion, and are stored to memory module; Described display unit obtains Analysis of Partial Discharge suggestion through described memory module and analyte analyzes suggestion, and testing result Sum decomposition thing testing result is put in display office.
6. SF according to claim 5
6the control method of analyte comprehensive detector is put in electrical equipment office, it is characterized in that, in described step S3 and described step S5, described Partial discharge signal processing unit obtains noise signal and local discharge signal from the described noise transducer of acquisition and described local discharge sensor correspondence respectively, and compares through described Partial discharge signal processing unit, filtering, generates described Partial Discharge Data after amplification and data processing; This Partial Discharge Data comprises: electric discharge amplitude, discharge time and PHASE DISTRIBUTION.
7. SF according to claim 5
6the control method of analyte comprehensive detector is put in electrical equipment office, it is characterized in that,
In described step S4 and described step S5, the tested gas obtained through described wireway and described flow regulating unit is carried out electrochemical signals conversion process by described Electrochemical Detection unit, generates described analyte and detects data; This analyte detects data and comprises: analyte kind and analyte content.
8. SF according to claim 5
6the control method of analyte comprehensive detector is put in electrical equipment office, it is characterized in that, in described step S3 to described step S5, default normal Partial Discharge Data in described Partial Discharge Data or described analyte detection data and described memory module or default normal analyte are detected data and compare by described integerated analytic unit, corresponding generation partial discharges fault reference information or analyte fault reference information; Described integerated analytic unit is according to partial discharges fault reference information or analyte fault reference information correspondence generates Analysis of Partial Discharge suggestion or analyte analyzes suggestion.
9. SF according to claim 8
6the control method of analyte comprehensive detector is put in electrical equipment office, it is characterized in that, described partial discharges fault reference information comprises: partial discharges fault character, partial discharges fault energy and partial discharges fault position; Described analyte fault reference information comprises: analyte nature of trouble, analyte fault energy and analyte abort situation.
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Application publication date: 20151118 |