CN205003248U - GIS partial discharge position determination device - Google Patents
GIS partial discharge position determination device Download PDFInfo
- Publication number
- CN205003248U CN205003248U CN201520794804.3U CN201520794804U CN205003248U CN 205003248 U CN205003248 U CN 205003248U CN 201520794804 U CN201520794804 U CN 201520794804U CN 205003248 U CN205003248 U CN 205003248U
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- CN
- China
- Prior art keywords
- operational amplifier
- metallic shield
- ground connection
- gis
- sensing electrode
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model provides a GIS partial discharge position determination device, the device includes the GIS casing, the sensing electrode, ground resistance, the ground connection inductance, the metallic shield cover, operational amplifier, the wave filter, signal amplifier and measuring apparatu, the surface subsides of GIS casing are equipped with insulating film, sensing electrode package draws together the medium base plate, metal paster and feeder pillar, metal paster and insulating film contact, feeder pillar fixes in the medium base plate, feeder pillar is connected with metal paster and operational amplifier's positive going input end respectively, the metallic shield cover is located on the outer wall of GIS casing, metallic shield covers ground connection, the GIS casing, ground resistance, the ground connection inductance is established ties and ground connection mutually, insulating film, the sensing electrode, ground resistance, ground connection inductance and operational amplifier all hold in the metallic shield cover, operational amplifier's reverse input end ground connection, the wave filter is connected to operational amplifier's output, the wave filter passes through signal amplifier and connects the measuring apparatu. The utility model discloses can improve partial discharge monitoring's reliability.
Description
Technical field
The utility model relates to high-tension electricity detection technique field, particularly relates to a kind of GIS partial discharge position measuring device.
Background technology
Shelf depreciation refers to the electric discharge phenomena that the insulation system of power equipment occurs in regional area under enough strong electric field action.Although this shelf depreciation only can cause, the subrange of insulation system is breakdown causes local short circuit, and the insulation between the conductor of power equipment penetrability does not occur and punctures, and shelf depreciation all can have some to affect on insulating medium each time.In addition, the impact of slight shelf depreciation on Electric Power Equipment Insulation is less, and the decline of dielectric strength is comparatively slow, and strong shelf depreciation, then dielectric strength can be made to decline very soon.
Therefore, in power equipment runs, need to detect partial discharge position and position is determined, to ensure insulation quality.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of GIS partial discharge position measuring device, can improve the reliability of partial discharge monitoring.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of GIS partial discharge position measuring device, comprise GIS housing, sensing electrode, stake resistance, grounded inductor, metallic shield, operational amplifier, wave filter, signal amplifier and measuring instrument, the outside surface of described GIS housing has been sticked insulation film, described sensing electrode comprises medium substrate, metal patch and feeder pillar, described metal patch be sticked described medium substrate upper surface and contact with described insulation film, described feeder pillar is fixed in described medium substrate, one end of described feeder pillar is connected with described metal patch, the other end of described feeder pillar passes the lower surface of described medium substrate and is connected with the positive input of described operational amplifier, described metallic shield covers on the outer wall of described GIS housing, described metallic shield ground connection, described stake resistance is connected with described GIS housing, described stake resistance is by described grounded inductor ground connection, described insulation film, sensing electrode, stake resistance, grounded inductor and operational amplifier are all contained in described metallic shield, the reverse input end of described operational amplifier is connected with described metallic shield, the output terminal of described operational amplifier is connected with described wave filter, described wave filter connects described measuring instrument by described signal amplifier.
Be different from the situation of prior art, the beneficial effects of the utility model are: carry out partial discharge monitoring by sensing electrode to GIS device, can realize fault pre-alarming, hidden danger of fixing a breakdown in advance, thus the reliability that can improve partial discharge monitoring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment GIS partial discharge position measuring device.
Fig. 2 is the structural representation of the sensing electrode of the GIS partial discharge position measuring device shown in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In the lump see Fig. 1 and Fig. 2, the GIS partial discharge position measuring device of the utility model embodiment comprises GIS housing 1, sensing electrode 2, stake resistance 3, grounded inductor 4, metallic shield 5, operational amplifier 6, wave filter 7, signal amplifier 8 and measuring instrument 9.
The outside surface of GIS housing 1 has been sticked insulation film 11, sensing electrode 2 comprises medium substrate 21, metal patch 22 and feeder pillar 23, metal patch 22 be sticked medium substrate 21 upper surface and contact with insulation film 11, feeder pillar 23 is fixed in medium substrate 21, one end of feeder pillar 23 is connected with metal patch 22, the other end of feeder pillar 23 passes the lower surface of medium substrate 21 and is connected with the positive input of operational amplifier 6, metallic shield 5 is located on the outer wall of GIS housing 1, metallic shield 5 ground connection, stake resistance 3 is connected with GIS housing 1, stake resistance 3 is by grounded inductor 4 ground connection, insulation film 11, sensing electrode 2, stake resistance 3, grounded inductor 4 and operational amplifier 6 are all contained in metallic shield 5, the reverse input end of operational amplifier 6 is connected with metallic shield 5, the output terminal of operational amplifier 6 is connected with wave filter 7, wave filter 7 connects measuring instrument 9 by signal amplifier 8.
Wherein, metal patch 22 and GIS housing 1 form electric capacity, utilize this electric capacity can extract the pulse signal of shelf depreciation, and after being amplified by filtering and signal, measuring instrument 9 just can obtain local discharge signal and determine discharge position.
By the way, the GIS partial discharge position measuring device of the utility model embodiment carries out partial discharge monitoring by sensing electrode to GIS device, fault pre-alarming can be realized, to fix a breakdown in advance hidden danger, thus the reliability of partial discharge monitoring can be improved, there is volume little, lightweight, easy to carry, the advantages such as antijamming capability is strong.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. a GIS partial discharge position measuring device, it is characterized in that, comprise GIS housing, sensing electrode, stake resistance, grounded inductor, metallic shield, operational amplifier, wave filter, signal amplifier and measuring instrument, the outside surface of described GIS housing has been sticked insulation film, described sensing electrode comprises medium substrate, metal patch and feeder pillar, described metal patch be sticked described medium substrate upper surface and contact with described insulation film, described feeder pillar is fixed in described medium substrate, one end of described feeder pillar is connected with described metal patch, the other end of described feeder pillar passes the lower surface of described medium substrate and is connected with the positive input of described operational amplifier, described metallic shield covers on the outer wall of described GIS housing, described metallic shield ground connection, described stake resistance is connected with described GIS housing, described stake resistance is by described grounded inductor ground connection, described insulation film, sensing electrode, stake resistance, grounded inductor and operational amplifier are all contained in described metallic shield, the reverse input end of described operational amplifier is connected with described metallic shield, the output terminal of described operational amplifier is connected with described wave filter, described wave filter connects described measuring instrument by described signal amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520794804.3U CN205003248U (en) | 2015-10-14 | 2015-10-14 | GIS partial discharge position determination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520794804.3U CN205003248U (en) | 2015-10-14 | 2015-10-14 | GIS partial discharge position determination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205003248U true CN205003248U (en) | 2016-01-27 |
Family
ID=55160131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520794804.3U Expired - Fee Related CN205003248U (en) | 2015-10-14 | 2015-10-14 | GIS partial discharge position determination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205003248U (en) |
-
2015
- 2015-10-14 CN CN201520794804.3U patent/CN205003248U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 |