CN201788256U - Oil clearance partial discharge detecting device in X-ray radiation - Google Patents
Oil clearance partial discharge detecting device in X-ray radiation Download PDFInfo
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- CN201788256U CN201788256U CN201020508635XU CN201020508635U CN201788256U CN 201788256 U CN201788256 U CN 201788256U CN 201020508635X U CN201020508635X U CN 201020508635XU CN 201020508635 U CN201020508635 U CN 201020508635U CN 201788256 U CN201788256 U CN 201788256U
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Abstract
The utility model discloses an oil clearance partial discharge detecting device in X-ray radiation, which comprises an X-ray unit, an experimental transformer and an oil clearance experimental apparatus. The oil clearance experimental apparatus comprises a high voltage electrode and oil immersed insulating cloth, the oil immersed insulating cloth covers and is fixed to the lower portion of the high voltage electrode, the lower portion of the high voltage electrode together with the oil immersed insulating cloth is disposed on an organic glass sheet in an organic glass container, the upper portion of the high voltage electrode penetrates through the top wall of the organic glass container, the organic glass sheet is arranged at the upper end of a grounding electrode, the lower end of the grounding electrode penetrates through the bottom wall of the organic glass container, and transformer oil is filled in the lower portion of the organic glass container, the upper end of the high voltage electrode is connected with the experimental transformer, the lower end of the grounding electrode is grounded after passing through an detection impedor, and the detection impedor is connected with a detection memory. The oil clearance partial discharge detecting device is novel in design, simple in structure, easy in implementation and fine in detection effect, and capable of finding out hidden dangers in advance and removing hidden dangers in time.
Description
One, technical field: the utility model relates to a kind of local discharge detection device, particularly relates to oil-gap local discharge detection device under a kind of x-ray bombardment.
Two. background technology: oil/paper insulation is the citation form of oil immersed type insulation of electrical installation, compare with other insulation forms, the detection of shelf depreciation can reflect the insulation status of electrical equipment in advance, the insulation defect of discovering device inside timely and effectively, the generation of prevention latency and sudden accident, therefore, the research of carrying out oil/paper insulation system shelf depreciation has crucial meaning.
Because the restriction of existing detection method, technology and external environmental interference, improve at present further Partial Discharge Detection and location technology and still have certain degree of difficulty, so the new method of exploratory development measurement of partial discharge, new equipment are crucial for solving the problem that exists in transformer and even whole high voltage electric equipment Partial Discharge Detection and the location.
Three. the content of utility model:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of modern design, simple in structure, implement and detect oil-gap local discharge detection device under the effective x-ray bombardment easily.
The technical solution of the utility model is: oil-gap local discharge detection device under a kind of x-ray bombardment, contain X-ray production apparatus, testing transformer and oil-gap tester, described oil-gap tester contains high-field electrode and oil immersion empire cloth, described oil immersion empire cloth is wrapped on the bottom of described high-field electrode, the bottom of described high-field electrode is placed on the poly (methyl methacrylate) plate in the organic glass container together with described oil immersion empire cloth, its top is run through the roof of described organic glass container and is gone out, described poly (methyl methacrylate) plate is placed on the upper end of ground-electrode, the lower end of this ground-electrode is run through the diapire of described organic glass container and is gone out, and transformer oil is equipped with in described organic glass container bottom; The upper end of described high-field electrode is connected with described testing transformer, and the lower end of described ground-electrode is by detecting ground connection after the impedance, and described detection impedance is connected with the detection of stored device.
Described detection of stored device is Partial discharge detector and digital storage oscilloscope.Described high-field electrode is made by the stainless steel conductor.Described oil immersion insulation is furnished with the 4-5 layer.
The beneficial effects of the utility model are:
1, the utility model is according to the flow characteristics of oil in the form of oil-gap in the oil-immersed and high-voltage electrical equipment and the oil-gap, under the alternating voltage effect, produce positive and negative charge in the oil-gap of oil immersion empire cloth, by x-ray bombardment, positive and negative charge generation fast moving causes oil-gap generation shelf depreciation, and the starting potential of oil-gap discharge is lower than the starting potential of nature discharge, be convenient to like this detect shelf depreciation early, scent a hidden danger in advance, in time get rid of hidden danger.
2, the utility model adopts the little stainless steel conductor of radius-of-curvature as high-field electrode, can obtain comparatively concentrated electric field intensity, and then simulate the higher position of electric field intensity in fuel-displaced/paper insulation, is convenient to detect.
3, the utility model adopts oil immersion empire cloth parcel high-field electrode, and parcel 4-5 layer, and high-field electrode and oil immersion empire cloth together are immersed in the transformer oil, constitute closed structure, detect effective.
4, the utility model modern design, simple in structure, implement easily and detect effectively, have good economic benefit after the popularization.
Four. description of drawings:
Fig. 1 is a structural representation of the present utility model.
Five. embodiment:
Embodiment: referring to Fig. 1, among the figure, 1-organic glass container, the 2-transformer oil, the 3-poly (methyl methacrylate) plate, the 4-high-field electrode, 5-oil immersion empire cloth, the 6-ground-electrode, the 7-X X-ray machine X, 8-detects impedance, 9-detection of stored device, 10-testing transformer, 11-coupling capacitance.
The oil-gap local discharge detection device contains X-ray production apparatus 7 under the x-ray bombardment, testing transformer 10 and oil-gap tester, the oil-gap tester contains high-field electrode 4 and oil immersion empire cloth 5, oil immersion empire cloth 5 is wrapped on the bottom of high-field electrode 4, the bottom of high-field electrode 4 is placed on the poly (methyl methacrylate) plate 3 in the organic glass container 1 together with oil immersion empire cloth 5, its top is run through the roof of organic glass container 1 and is gone out, poly (methyl methacrylate) plate 3 is placed on the upper end of ground-electrode 6, and (ground-electrode 6 upper ends can be provided with a top board, be convenient to place poly (methyl methacrylate) plate 3), the lower end of this ground-electrode 6 is run through the diapire of organic glass container 1 and is gone out, and transformer oil 2 is equipped with in organic glass container 1 bottom.The upper end of high-field electrode 4 is connected with testing transformer 10, and the lower end of ground-electrode 6 is detected impedance 8 and is connected with detection of stored device 9 by detecting impedance 8 back ground connection.
High-field electrode 4 is made by the stainless steel conductor, can obtain the electric field intensity of comparatively concentrating.Oil immersion empire cloth 5 has the 4-5 layer, can choose different quantity as required, and it is tight more, thick more that oil immersion empire cloth 5 wraps up, and the gap that high-field electrode 4 and oil immersion empire cloth are 5 is more little, and the amplitude that the starting potential of shelf depreciation reduces is big more.
Under the alternating voltage effect, produce positive and negative charge in the oil-gap of oil immersion empire cloth 5, by X-ray production apparatus 7 irradiations, positive and negative charge generation fast moving, cause oil-gap generation shelf depreciation, and the starting potential of oil-gap discharge is lower than the starting potential of nature discharge, is convenient to detect early shelf depreciation like this, scent a hidden danger in advance, in time get rid of hidden danger.
Claims (4)
1. oil-gap local discharge detection device under the x-ray bombardment, contain X-ray production apparatus, testing transformer and oil-gap tester, it is characterized in that: described oil-gap tester contains high-field electrode and oil immersion empire cloth, described oil immersion empire cloth is wrapped on the bottom of described high-field electrode, the bottom of described high-field electrode is placed on the poly (methyl methacrylate) plate in the organic glass container together with described oil immersion empire cloth, its top is run through the roof of described organic glass container and is gone out, described poly (methyl methacrylate) plate is placed on the upper end of ground-electrode, the lower end of this ground-electrode is run through the diapire of described organic glass container and is gone out, and transformer oil is equipped with in described organic glass container bottom; The upper end of described high-field electrode is connected with described testing transformer, and the lower end of described ground-electrode is by detecting ground connection after the impedance, and described detection impedance is connected with the detection of stored device.
2. oil-gap local discharge detection device under the x-ray bombardment according to claim 1 is characterized in that: described detection of stored device is Partial discharge detector and digital storage oscilloscope.
3. oil-gap local discharge detection device under the x-ray bombardment according to claim 1 is characterized in that: described high-field electrode is made by the stainless steel conductor.
4. oil-gap local discharge detection device under the x-ray bombardment according to claim 1 is characterized in that: described oil immersion insulation is furnished with the 4-5 layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020508635XU CN201788256U (en) | 2010-08-30 | 2010-08-30 | Oil clearance partial discharge detecting device in X-ray radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020508635XU CN201788256U (en) | 2010-08-30 | 2010-08-30 | Oil clearance partial discharge detecting device in X-ray radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788256U true CN201788256U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020508635XU Expired - Fee Related CN201788256U (en) | 2010-08-30 | 2010-08-30 | Oil clearance partial discharge detecting device in X-ray radiation |
Country Status (1)
| Country | Link |
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| CN (1) | CN201788256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508133A (en) * | 2011-11-22 | 2012-06-20 | 云南电力试验研究院（集团）有限公司电力研究院 | Method and device for detecting power insulating material under irradiation of X rays |
| CN113514741A (en) * | 2021-07-21 | 2021-10-19 | 北京石油化工学院 | Experimental device for liquid electrode partial discharge simulation under direct current excitation |
-
2010
- 2010-08-30 CN CN201020508635XU patent/CN201788256U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508133A (en) * | 2011-11-22 | 2012-06-20 | 云南电力试验研究院（集团）有限公司电力研究院 | Method and device for detecting power insulating material under irradiation of X rays |
| CN113514741A (en) * | 2021-07-21 | 2021-10-19 | 北京石油化工学院 | Experimental device for liquid electrode partial discharge simulation under direct current excitation |
| CN113514741B (en) * | 2021-07-21 | 2023-09-15 | 北京石油化工学院 | Experimental device for liquid electrode partial discharge simulation under direct current excitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120830 |