CN201804638U - Gas composite insulator - Google Patents
Gas composite insulator Download PDFInfo
- Publication number
- CN201804638U CN201804638U CN2010201437817U CN201020143781U CN201804638U CN 201804638 U CN201804638 U CN 201804638U CN 2010201437817 U CN2010201437817 U CN 2010201437817U CN 201020143781 U CN201020143781 U CN 201020143781U CN 201804638 U CN201804638 U CN 201804638U
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- Prior art keywords
- gas
- composite insulator
- umbrella
- insulator
- flashover
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Abstract
The utility model discloses a gas composite insulator which comprises a core rod and an umbrella skirt sheath connected with the core rod, wherein the umbrella skirt sheath is filled with gas. By adopting the technical scheme in the utility model, the silicone rubber umbrella skirt sheath is filled with gas that is hard to dissolve in water, so that the usage amount of silicone rubber and the manufacture cost are reduced under the premise that the favorable hydrophobic property and the pollution flashover and wet flashover resistant properties of the composite insulator are ensured. Therefore, leaving out the cost factor, the composite insulator can be enlarged in size, and then the umbrella skirt diameter and the umbrella space are enlarged, so as to reduce the incidence of flashover phenomenon.
Description
Technical field
The utility model belongs to the transmission line field, especially relates to a kind of synthetic insulator.
Background technology
In power circuit construction and transformation in recent years, the consumption of synthetic insulator is more and more, and scope is also more and more wider, and 10kV is newly-built to the circuit of each electric pressure of 500kV, and the antifouling accent of particularly operating transmission line is climbed, and selects synthetic insulator usually for use.
During on 04 10th, 2002 05:48; the Puyang development station 110kVII line I switch zero-sequenceprotection would trip successful reclosing clearly that shakes; after carefully step on the bar inspection; be confirmed to be at the B of No. 3 tangent towers phase insulator; because of birds droppings causes flashover institute extremely; all found fresh birds droppings on on-the-spot iron tower, insulator and the ground, distant spark tracking has been arranged on the insulator.II shakes clearly that line is the new line that puts into operation September calendar year 2001, has all used synthetic insulator, and model is FXBW2-110/70.Current accident has exposed the structural defective of synthetic insulator once more, should cause the attention that power supply department is enough.
Synthetic insulator claims silicon rubber insulator again, and the main cause that can extensively be promoted the use of is that it has good hydrophobicity performance, resistant is dodged and moisture-proof dodges performance.But, because its full skirt diameter and umbrella spacing are less, and under long wet spells the structural reasons such as forfeiture of hydrophobicity performance, the unidentified flashover rate of synthetic insulator is apparently higher than other type insulator.
Tsing-Hua University finds when the flashover experiment that the simulation birds droppings causes, the birds droppings path is during apart from tens centimetres of synthetic insulator outer rims, than directly being dropped in easier flashover on the umbrella edge, its main cause is exactly because the full skirt spacing of synthetic insulator is too small, arcing short circuit phenomenon between full skirt easily takes place, this puncture through air duct does not mostly do great damage to insulator itself, and its reclosing success rate is very high, and can not find tangible fault point after the fault.
In the preparation because the price of silicon rubber is higher, so usually synthetic insulator is made less, thereby make its full skirt diameter and umbrella spacing less, caused the arcing short circuit phenomenon between full skirt.
Summary of the invention
The purpose of this utility model provides the gas synthetic insulator of a kind of increase full skirt spacing, minimizing " flashover " phenomenon.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises plug and the umbrella sheath that is connected with plug, blanketing gas in the described umbrella sheath.
Described gas is nitrogen.
Described plug is a fiber reinforced plastics rod.
Described plug is high-strength porcelain core rod.
Described umbrella sheath is a silicone rubber jacket.
Adopt the utility model of technique scheme, owing to will be filled with gas not soluble in water in the silicon rubber umbrella sheath, guaranteeing that synthetic insulator has good hydrophobicity performance, resistant is dodged and moisture-proof dodges under the prerequisite of performance, has reduced the use of silicon rubber, has reduced manufacturing cost like this.Therefore, under the prerequisite of having got rid of cost factor, synthetic insulator can increase its size, and then increases full skirt diameter and umbrella spacing, has reduced the generation of " flashover " phenomenon.
Description of drawings
Accompanying drawing is an overall structure schematic diagram of the present utility model.
Embodiment
The utility model comprises plug 1 and the umbrella sheath 2 that is connected with plug 1, is filled with gas not soluble in water 3 in the described umbrella sheath 2, as nitrogen, oxygen, hydrogen or the like.Guaranteeing that synthetic insulator has good hydrophobicity performance, resistant is dodged and moisture-proof dodges under the prerequisite of performance, reduced the use amount of silicon rubber, thereby reduced manufacturing cost like this.Therefore, under the prerequisite of having got rid of cost factor, synthetic insulator can increase its size, and then increases full skirt diameter and umbrella spacing, has reduced the generation of " flashover " phenomenon.
Above-mentioned plug 1 both can be fiber reinforced plastics rod, also can be high-strength porcelain core rod.In addition, umbrella sheath 2 is a silicone rubber jacket.
Claims (5)
1. gas synthetic insulator, it comprises plug (1) and the umbrella sheath (2) that is connected with plug (1), it is characterized in that: the interior blanketing gas of described umbrella sheath (2) (3).
2. gas synthetic insulator according to claim 1 is characterized in that: described gas (3) is nitrogen.
3. according to claims 1 described gas synthetic insulator, it is characterized in that: described plug (1) is a fiber reinforced plastics rod.
4. according to claims 1 described gas synthetic insulator, it is characterized in that: described plug (1) is high-strength porcelain core rod.
5. according to claims 1 described gas synthetic insulator, it is characterized in that: described umbrella sheath (2) is a silicone rubber jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201437817U CN201804638U (en) | 2010-03-30 | 2010-03-30 | Gas composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201437817U CN201804638U (en) | 2010-03-30 | 2010-03-30 | Gas composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804638U true CN201804638U (en) | 2011-04-20 |
Family
ID=43874140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201437817U Expired - Fee Related CN201804638U (en) | 2010-03-30 | 2010-03-30 | Gas composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198897A (en) * | 2014-07-30 | 2014-12-10 | 国家电网公司 | Composite insulator interface breakdown fault simulation method |
-
2010
- 2010-03-30 CN CN2010201437817U patent/CN201804638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198897A (en) * | 2014-07-30 | 2014-12-10 | 国家电网公司 | Composite insulator interface breakdown fault simulation method |
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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: 20110420 Termination date: 20120330 |