CN203148991U - Shielding mounting structure for partial discharge test of transformer substation - Google Patents
Shielding mounting structure for partial discharge test of transformer substation Download PDFInfo
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- CN203148991U CN203148991U CN 201320376215 CN201320376215U CN203148991U CN 203148991 U CN203148991 U CN 203148991U CN 201320376215 CN201320376215 CN 201320376215 CN 201320376215 U CN201320376215 U CN 201320376215U CN 203148991 U CN203148991 U CN 203148991U
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- mounting structure
- insulator
- sensor
- screen layer
- shielding
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Abstract
The utility model discloses a shielding mounting structure for the partial discharge test of a transformer substation. The shielding mounting structure comprises an insulator, a sensor, a signal transmission line and a shielding layer, wherein the outer surface of the insulator is completely wrapped by the shielding layer; the sensor is arranged between the insulator and the shielding layer; the sensor is wrapped by the shielding layer; and the signal transmission line is led out from the shielding layer. According to the shielding mounting structure, a high-shielding performance mode, a special material and a special mounting mode are adopted, so that external interference is effectively shielded, and the effectiveness and the sensitivity of partial discharge monitoring are greatly improved.
Description
Technical field:
The utility model belongs to electrical engineering technology and electromangnetic spectrum field, is used for a kind of shielding mounting structure of the charged detection of transforming plant primary equipment shelf depreciation and on-line monitoring interference protection measure.
Background technology:
The reliability of transformer station's high pressure primary equipment directly influences the safe operation of electrical network.High pressure primary equipment defective and fault are based on the insulativity fault, and its common ground is to insulate to be in for a long time under high voltage, the highfield environment to move, and is very responsive to partial discharge phenomenon.Shelf depreciation is the reason of insulation degradation, is again tendency and the form of expression of insulation degradation.Therefore, Partial Discharge Detecting Technology becomes the primary equipment insulating property and detects very effective monitoring method.
But often there is the feature similarity of electromagnetic interference signal even identical in the inner local discharge signal that produces of high pressure primary equipment with transformer station, and the validity that causes measuring reduces even is invalid.Detect in the GIS shelf depreciation in the superfrequency method, the sensor at disc insulator place also receives a large amount of electromagnetic interference signals from GIS device external space in the electromagnetic wave signal that the reception internal discharge inspires, be interfered thereby make to measure, even flood useful signal because of undesired signal and cause and measure failure.
The utility model adopts a kind of high-performance shielding mode, by adopting special material and mounting means, has effectively shielded sensor undesired signal in addition, the validity and the sensitivity that improve Partial Discharge Detection greatly.Project achievement may extend to all primary equipments that adopt the superfrequency methods, for the safe operation of transforming plant primary equipment provides safeguard, has important practical value.
The utility model content:
At the problems referred to above, the special shielding mounting structure that proposes in the shelf depreciation test of a kind of transformer station, its concrete technical scheme is:
Shielding mounting structure in transformer station's shelf depreciation test, comprise insulator, sensor, signal transmssion line and screen layer, screen layer is coated on the insulator outside surface fully, and sensor places between insulator and the screen layer, screen layer envelopes sensor, and signal transmssion line is drawn in screen layer.
Screen layer comprises three-decker, is followed successively by soft material screen layer, soft material adhesion layer and hard material layer from inside to outside, and the soft material screen layer is coated on the insulator outside surface.
Sensor coats for the soft material screen layer.
Having the gap between sensor and the insulator, is gas in the gap.
Sensor contacts with insulator.
Insulator is disc insulator.
Signal transmssion line is the high frequency cable.
Sensor is for being used for receiving the antenna of local discharge signal.
Adopt technique scheme that following advantage is arranged:
1. sensor is completely enclosed within the shielding material, and the electromagnetic signal that has thoroughly shielded transformer station is disturbed.
2. disc insulator is wrapped up fully, thoroughly shielded extraneous electromagnetic interference signal and entered in the primary equipment by disc insulator, eliminate and disturb measuring to produce.
3. soft material is easy to install.
4. the existing shielding action of hard material also plays a protective role to soft material.
Description of drawings:
Fig. 1 for this reason shielding mode at the application synoptic diagram of disc insulator.
Fig. 2 is the sectional view of screen layer lapping.
Wherein, 1-disc insulator; The 2-sensor; 3-high frequency cable; The 4-screen layer; 5-soft material screen layer; 6-soft material adhesion layer; The 7-hard material layer.
Embodiment:
With reference to shown in Figure 1, sensor 2 is wrapped in the screen layer 4, screen layer 4 covers the outside surface of disc insulator 1 fully, disc insulator 1 two ends connection bus shell, disc insulator 1 outside surface is covered fully, see from the outside and not expose any part, guaranteed shielding fully, high frequency cable 3 connects sensor 2 and draws in screen layer 4, and be connected with next stage equipment, next stage equipment is generally data processing circuit, wherein, sensor 2, high frequency cable 3 and screen layer 4 are an integral body when installing, cover the outside surface of disc insulator 1, sensor 2 places between disc insulator 1 and the screen layer 4, between sensor 2 and the disc insulator 1 certain spacing the best is arranged, be air therebetween, the two also can contact with each other.
With reference to shown in Figure 2; screen layer 4 comprises three parts; soft material screen layer 5 is in the position of pressing close to most disc insulator 1; soft material adhesion layer 6 is in the outside of soft material screen layer 5; be used for fixedly connected soft material layer 5 and hard material layer 7, also play certain buffer action, hard material layer 7 is at outermost layer; the effect of playing protection and reinforcing also has certain shielding action simultaneously.
Above embodiment only is preferred embodiment of the present utility model; the utility model is not limited to above-described embodiment; for persons skilled in the art; the any apparent change of under the prerequisite that does not deviate from the utility model principle it being done all belongs to protection domain of the present utility model.
Claims (8)
1. the shielding mounting structure during transformer station's shelf depreciation is tested, comprise insulator, sensor, signal transmssion line and screen layer, it is characterized in that screen layer is coated on the insulator outside surface fully, sensor places between insulator and the screen layer, screen layer envelopes sensor, and signal transmssion line is drawn in screen layer.
2. the shielding mounting structure during a transformer station as claimed in claim 1 shelf depreciation is tested, it is characterized in that screen layer comprises three-decker, be followed successively by soft material screen layer, soft material adhesion layer and hard material layer from inside to outside, the soft material screen layer is coated on the insulator outside surface.
3. the shielding mounting structure during a transformer station as claimed in claim 2 shelf depreciation is tested is characterized in that sensor is that the soft material screen layer coats.
4. the shielding mounting structure during a transformer station as claimed in claim 3 shelf depreciation is tested is characterized in that having the gap between sensor and the insulator, is gas in the gap.
5. the shielding mounting structure during a transformer station as claimed in claim 3 shelf depreciation is tested is characterized in that sensor contacts with insulator.
6. one kind as the shielding mounting structure in claim 1,2,3, the test of 4 or 5 described transformer stations shelf depreciations, it is characterized in that insulator is disc insulator.
7. one kind as the shielding mounting structure in claim 1,2,3, the test of 4 or 5 described transformer stations shelf depreciations, it is characterized in that signal transmssion line is the high frequency cable.
8. one kind as the shielding mounting structure in claim 1,2,3, the test of 4 or 5 described transformer stations shelf depreciations, it is characterized in that sensor is for the antenna that receives local discharge signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320376215 CN203148991U (en) | 2013-06-28 | 2013-06-28 | Shielding mounting structure for partial discharge test of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320376215 CN203148991U (en) | 2013-06-28 | 2013-06-28 | Shielding mounting structure for partial discharge test of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148991U true CN203148991U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320376215 Expired - Fee Related CN203148991U (en) | 2013-06-28 | 2013-06-28 | Shielding mounting structure for partial discharge test of transformer substation |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148991U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291266A (en) * | 2015-05-25 | 2017-01-04 | 国家电网公司 | A kind of shelf depreciation In-circiut tester |
| CN107833705A (en) * | 2017-09-26 | 2018-03-23 | 杭州西湖电子研究所 | A kind of totally-enclosed disc insulators of GIS of built-in extra-high video sensor |
| CN112557855A (en) * | 2020-12-23 | 2021-03-26 | 武汉华威众科电力有限公司 | On-line partial discharge shielding type sensor and implementation method thereof |
| CN113325274A (en) * | 2021-03-10 | 2021-08-31 | 浙江徕米物联网科技有限公司 | Online partial discharge monitoring equipment installation method |
| CN113851282A (en) * | 2021-11-09 | 2021-12-28 | 南方电网科学研究院有限责任公司 | GIS basin-type insulator surface charge shielding device |
-
2013
- 2013-06-28 CN CN 201320376215 patent/CN203148991U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291266A (en) * | 2015-05-25 | 2017-01-04 | 国家电网公司 | A kind of shelf depreciation In-circiut tester |
| CN107833705A (en) * | 2017-09-26 | 2018-03-23 | 杭州西湖电子研究所 | A kind of totally-enclosed disc insulators of GIS of built-in extra-high video sensor |
| CN107833705B (en) * | 2017-09-26 | 2023-07-07 | 杭州西湖电子研究所 | GIS totally-enclosed basin-type insulator with built-in ultrahigh frequency sensor |
| CN112557855A (en) * | 2020-12-23 | 2021-03-26 | 武汉华威众科电力有限公司 | On-line partial discharge shielding type sensor and implementation method thereof |
| CN113325274A (en) * | 2021-03-10 | 2021-08-31 | 浙江徕米物联网科技有限公司 | Online partial discharge monitoring equipment installation method |
| CN113851282A (en) * | 2021-11-09 | 2021-12-28 | 南方电网科学研究院有限责任公司 | GIS basin-type insulator surface charge shielding device |
| CN113851282B (en) * | 2021-11-09 | 2024-01-09 | 南方电网科学研究院有限责任公司 | GIS basin-type insulator surface charge shielding device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Xiaonan Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Xiaonan Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |