CN204314424U - A kind of GIL device interior fault auxiliary judgment device - Google Patents
A kind of GIL device interior fault auxiliary judgment device Download PDFInfo
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- CN204314424U CN204314424U CN201420731455.6U CN201420731455U CN204314424U CN 204314424 U CN204314424 U CN 204314424U CN 201420731455 U CN201420731455 U CN 201420731455U CN 204314424 U CN204314424 U CN 204314424U
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Abstract
The utility model provides a kind of GIL device interior fault auxiliary judgment device, comprise the antenna, filtering and amplifying circuit module, analog-to-digital conversion module and the storer that are electrically connected successively, the end of described antenna is provided with the can for gathering the vibration amplitude harmony audio domain that GIL apparatus local discharge produces, and also comprises the power module of powering to described can, filtering and amplifying circuit module, analog-to-digital conversion module and storer.This apparatus structure is simple, easy to operate, can gather the relevant information of shelf depreciation from the fault zone of GIL equipment and store, facilitate subsequent analysis process, play auxiliary judgment GIL equipment failure point, improve the effect judging precision, practical.
Description
Technical field
The utility model relates to the technical field of GIL equipment operation maintenance, particularly relates to a kind of GIL device interior fault auxiliary judgment device.
Background technology
As shown in Figure 1, for 500kV current conversion station typical case GIL equipment form, GIL equipment i.e. " gas-insulated metal closed power transmission line ", it is one new force in extra-high voltage transmission, its structural form is completely different from traditional power cable, advantages such as having that transmission line capability is large, capacitance is little, dielectric loss is little, take up an area less, be safe and reliable, is specially adapted to a varied topography, that drop is large, area is narrow and small occasion.Through the development of nearly 50 years, the application of GIL equipment is increasingly extensive, consequential fault also gets more and more, and electric system is required more and more stricter to the operational reliability of extra-high voltage transmission GIL equipment, also more and more higher to the technical requirement of GIL device interior breakdown judge.
In general, most faults of GIL equipment are insulation failure, not only comprise the insulation degradation that electric stress effect causes, and in the effect of mechanical force or heat, or under the common effect of their and electric field, finally also can develop into insulation failure.If GIL device interior insulation fault is not found early, gently then cause the loss of supply, heavy then to blast and on fire, cause casualties.
The insulating property of GIL system guarantee the essential condition of its safe and stable operation, the conductive impurities such as the metal particle in GIL device interior, powder and moisture cause the major reason of GIL fault, when there is conductive impurities in GIL device interior, shelf depreciation can be caused, and then send the abnormal occurrencies such as abnormal sound, vibration, discharge charge, decomposition gas, therefore, shelf depreciation is one of important evidence judging GIL fault.
At present, the technology that utilization realizes the monitoring of GIL apparatus local discharge based on supercritical ultrasonics technology and ultrahigh frequency method is the most extensive, but the accuracy of its failure judgement is larger by the impact of sensor performance, equipment peripheral electromagnetic field environment, and there is no corresponding breakdown judge reference and foundation, can only across comparison be carried out, pass through micro-judgment.In addition, longer owing to leading in GIL equipment, utilize the method for testing such as supercritical ultrasonics technology, ultrahigh frequency method to be all difficult at short notice accurately fault point, bring puzzlement to breakdown judge, cause the repair time long.
Summary of the invention
The purpose of this utility model is to propose a kind of GIL device interior fault auxiliary judgment device, with fault point quickly and accurately, help equipment operation maintenance personnel carries out defect analysis, trouble shooting, arrangement interruption maintenance etc. early, improves specific aim and the reliability of Diagnostic Examination And Repair of Electric Power Facilities.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of GIL device interior fault auxiliary judgment device, comprise the antenna, filtering and amplifying circuit module, analog-to-digital conversion module and the storer that are electrically connected successively, the end of described antenna is provided with the can for gathering the vibration amplitude harmony audio domain that GIL apparatus local discharge produces, and also comprises the power module of powering to described can, filtering and amplifying circuit module, analog-to-digital conversion module and storer.
When finding that GIL equipment exists fault, hand-holdable above-mentioned GIL device interior fault auxiliary judgment device is to suspected malfunctions region, vibration amplitude harmony audio domain is gathered by can, recycling filtering and amplifying circuit and analog-to-digital conversion module, the simulating signal of the vibration amplitude harmony audio domain collected is amplified, filtering and analog to digital conversion, then be stored in reservoir, to judge concrete trouble spot leaving suspected malfunctions region post analysis.This apparatus structure is simple, easy to operate, can gather the relevant information of shelf depreciation from the fault zone of GIL equipment and store, facilitate subsequent analysis process, play auxiliary judgment GIL equipment failure point, improve the effect judging precision, practical.
Described GIL device interior fault auxiliary judgment device also comprises the processing module for data compression, and the input end of this processing module is connected with described analog-to-digital conversion module, and output terminal is connected with described storer.The digital signal be converted to can be compressed, reduce the size of data stored, improve storage speed.
Described GIL device interior fault auxiliary judgment device also comprises the housing described antenna, filtering and amplifying circuit module, analog-to-digital conversion module, storer, processing module and power module integrated.Integrate the volume that can reduce package unit, be convenient to transport and carry.
Described housing is also provided with the display panel for showing described vibration amplitude harmony audio domain, described can is connected with display panel.Directly can represent vibration amplitude harmony audio domain, be convenient to operation maintenance personnel and tentatively judge.
The root of described antenna is connected with described housing, and this antenna also comprises the body of rod that is scalable and that can rotate along described root.The scope of data acquisition can be expanded, and make more convenient to operate.
Described housing is also provided with braces.More be convenient to transport and carry.
Described housing is also provided with the earphone jack be connected with analog-to-digital conversion module.Be convenient to the signal that operation maintenance personnel listens to collection, tentatively to judge.
Described storer is the storage card be connected with analog-to-digital conversion module or processing module.Be convenient to read the vibration amplitude harmony audio domain stored.
The utility model has the advantages that: this apparatus structure is simple, can the relevant information of shelf depreciation be gathered from the fault zone of GIL equipment and store easily, facilitate subsequent analysis process, play auxiliary judgment GIL equipment failure point, improve the effect judging precision, it is convenient to transport and carries, easy to operate, practical.
Accompanying drawing explanation
Fig. 1 is 500kV current conversion station typical case GIL equipment form schematic diagram in background technology;
Fig. 2 is structural representation of the present utility model;
Description of reference numerals: 1, antenna; 2, can; 3, filtering and amplifying circuit module; 4, analog-to-digital conversion module; 5, storer; 6, power module; 7, processing module; 8, housing; 9, display panel; 10, braces; 11, earphone jack.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail the utility model below in conjunction with the drawings and specific embodiments.
Embodiment
As shown in Figure 1, a kind of GIL device interior fault auxiliary judgment device, comprise the antenna 1, filtering and amplifying circuit module 3, analog-to-digital conversion module 4 and the storer 5 that are electrically connected successively, the end of described antenna 1 is provided with the can 2 for gathering the vibration amplitude harmony audio domain that GIL apparatus local discharge produces, and it also comprises the power module 6 to the power supply of described can 2, filtering and amplifying circuit module 3, analog-to-digital conversion module 4 and storer 5.
Can be there is a certain amount of shelf depreciation when normal operation in GIL equipment, the electric power that shelf depreciation produces can produce a certain amount of vibration amplitude harmony audio domain.GIL device interior fault auxiliary judgment device of the present utility model, it is a set of off-line device being deep into GIL device context, be mainly used in the sampling of vibration amplitude harmony audio domain, carry out data conversion and store after, the information collected is read by software analysis program, through the contrast, calculating etc. of characteristic quantity, find out concrete trouble spot, failure cause etc.
When finding that GIL equipment exists fault, hand-holdable above-mentioned GIL device interior fault auxiliary judgment device is to suspected malfunctions region, vibration amplitude harmony audio domain is gathered by can 2, recycling filtering and amplifying circuit and analog-to-digital conversion module 4, the simulating signal of the vibration amplitude harmony audio domain collected is amplified, filtering and analog to digital conversion, then be stored in reservoir, to judge concrete trouble spot leaving suspected malfunctions region post analysis.
Wherein, filtering and amplifying circuit module 3, analog-to-digital conversion module 4 are more common data processing circuit modules, the amplification of its correspondence, filtering circuit, and the change-over circuit of analog quantity and digital quantity has much in prior art, repeats no more herein.
Preferably, described GIL device interior fault auxiliary judgment device also comprises the processing module 7 for data compression, and the input end of this processing module 7 is connected with described analog-to-digital conversion module 4, and output terminal is connected with described storer 5.This processing module 7 can take data compression scheme in prior art, repeats no more herein.
Further, described GIL device interior fault auxiliary judgment device also comprises the housing 8 described antenna 1, filtering and amplifying circuit module 3, analog-to-digital conversion module 4, storer 5, processing module 7 and power module 6 integrated; Described housing 8 is also provided with the display panel 9 for showing described vibration amplitude harmony audio domain, described can 2 is connected with display panel 9; The root of described antenna 1 is connected with described housing 8, and this antenna 1 also comprises the body of rod that is scalable and that can rotate along described root; Described housing 8 is also provided with braces 10; Described housing 8 is also provided with the earphone jack 11 be connected with analog-to-digital conversion module 4; Described storer 5 is the storage card be connected with analog-to-digital conversion module 4 or processing module 7.
Be described below in conjunction with a practical application scene.
In transformer station, operation maintenance personnel can utilize ultrasound wave/high-frequency local discharging tester to carry out live testing to GIL equipment, during as found that GIL equipment a certain form partial discharge quantity is bigger than normal, this tester just can send GIL equipment a certain form partial discharge quantity alarm signal bigger than normal, operation maintenance personnel this GIL device interior fault auxiliary judgment device hand-held, device for opening near the form that office is high-volume bigger than normal, on ground, the can 2 of device antenna 1 end is aimed at suspected malfunctions region, its air line distance controls in 3m scope, then operation maintenance personnel can be vibrated GIL equipment suspected malfunctions region, the scan-type collection (constant speed moves can 2 and gathers) of sound characteristic amount, the data of collection are saved in storage card, after leaving GIL device context, storage card is taken out from this GIL device interior fault auxiliary judgment device, inserting is equipped with in the computing machine of routine analyzer, open routine analyzer, and the data read in storage card, analyze, then can demonstrate the maximum point of frequency amplitude in the T/F amplitude coordinate system interface of these data, by the time of the maximum some correspondence of frequency amplitude, calculate position of failure point, namely the location of GIL apparatus local discharge trouble spot is completed.
This apparatus structure is simple, can gather the relevant information of shelf depreciation from the fault zone of GIL equipment and store easily, facilitate subsequent analysis process, play auxiliary judgment GIL equipment failure point, improve the effect judging precision, it is convenient to transport and carries, easy to operate, practical.
Above-listed detailed description is illustrating for the utility model possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present utility model, does not allly depart from the equivalence that the utility model does and implements or change, and all should be contained in the scope of the claims of this case.
Claims (8)
1. a GIL device interior fault auxiliary judgment device, it is characterized in that, comprise the antenna, filtering and amplifying circuit module, analog-to-digital conversion module and the storer that are electrically connected successively, the end of described antenna is provided with the can for gathering the vibration amplitude harmony audio domain that GIL apparatus local discharge produces, and also comprises the power module of powering to described can, filtering and amplifying circuit module, analog-to-digital conversion module and storer.
2. GIL device interior fault auxiliary judgment device according to claim 1, it is characterized in that, also comprise the processing module for data compression, the input end of this processing module is connected with described analog-to-digital conversion module, and output terminal is connected with described storer.
3. GIL device interior fault auxiliary judgment device according to claim 2, is characterized in that, also comprise the housing described antenna, filtering and amplifying circuit module, analog-to-digital conversion module, storer, processing module and power module integrated.
4. GIL device interior fault auxiliary judgment device according to claim 3, is characterized in that, described housing is also provided with the display panel for showing described vibration amplitude harmony audio domain, described can is connected with display panel.
5. the GIL device interior fault auxiliary judgment device according to claim 3 or 4, it is characterized in that, the root of described antenna is connected with described housing, and this antenna also comprises the body of rod that is scalable and that can rotate along described root.
6. the GIL device interior fault auxiliary judgment device according to claim 3 or 4, is characterized in that, described housing is also provided with braces.
7. the GIL device interior fault auxiliary judgment device according to claim 3 or 4, is characterized in that, described housing is also provided with the earphone jack be connected with analog-to-digital conversion module.
8. the GIL device interior fault auxiliary judgment device according to claim 1-4 any one, it is characterized in that, described storer is the storage card be connected with analog-to-digital conversion module or processing module.
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| CN201420731455.6U CN204314424U (en) | 2014-11-27 | 2014-11-27 | A kind of GIL device interior fault auxiliary judgment device |
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| CN201420731455.6U CN204314424U (en) | 2014-11-27 | 2014-11-27 | A kind of GIL device interior fault auxiliary judgment device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589022A (en) * | 2016-03-15 | 2016-05-18 | 国家电网公司 | Transformer fault auscultation instrument |
| CN105738788A (en) * | 2016-05-13 | 2016-07-06 | 国网山东省电力公司枣庄供电公司 | 10 kV line discharge point detection device |
| CN106017664A (en) * | 2016-06-21 | 2016-10-12 | 中国电力科学研究院 | Extra-high voltage alternating-current mixed GIL segment vibration monitoring method |
| CN106124928A (en) * | 2016-06-21 | 2016-11-16 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment temperature monitoring method |
| CN107677938A (en) * | 2016-08-02 | 2018-02-09 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment Partial discharge signal measuring methods |
| CN107677937A (en) * | 2016-08-02 | 2018-02-09 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment Partial discharge signal Fault Locating Methods |
| CN109683071A (en) * | 2018-12-24 | 2019-04-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Fast-positioning device and method after a kind of three support insulator discharge fault of GIL equipment |
| CN110082655A (en) * | 2019-05-13 | 2019-08-02 | 国网北京市电力公司 | Visualization device detection method and instrument and its application in smart grid |
| CN112578230A (en) * | 2020-12-28 | 2021-03-30 | 广东电网有限责任公司佛山供电局 | Fault positioning method and device for gas insulated metal enclosed transmission line |
-
2014
- 2014-11-27 CN CN201420731455.6U patent/CN204314424U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589022A (en) * | 2016-03-15 | 2016-05-18 | 国家电网公司 | Transformer fault auscultation instrument |
| CN105738788A (en) * | 2016-05-13 | 2016-07-06 | 国网山东省电力公司枣庄供电公司 | 10 kV line discharge point detection device |
| CN106017664A (en) * | 2016-06-21 | 2016-10-12 | 中国电力科学研究院 | Extra-high voltage alternating-current mixed GIL segment vibration monitoring method |
| CN106124928A (en) * | 2016-06-21 | 2016-11-16 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment temperature monitoring method |
| CN107677938A (en) * | 2016-08-02 | 2018-02-09 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment Partial discharge signal measuring methods |
| CN107677937A (en) * | 2016-08-02 | 2018-02-09 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment Partial discharge signal Fault Locating Methods |
| CN109683071A (en) * | 2018-12-24 | 2019-04-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Fast-positioning device and method after a kind of three support insulator discharge fault of GIL equipment |
| CN110082655A (en) * | 2019-05-13 | 2019-08-02 | 国网北京市电力公司 | Visualization device detection method and instrument and its application in smart grid |
| CN112578230A (en) * | 2020-12-28 | 2021-03-30 | 广东电网有限责任公司佛山供电局 | Fault positioning method and device for gas insulated metal enclosed transmission line |
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