CN1877751A - Pollution flashover preventing insulator - Google Patents
Pollution flashover preventing insulator Download PDFInfo
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- CN1877751A CN1877751A CN 200610028557 CN200610028557A CN1877751A CN 1877751 A CN1877751 A CN 1877751A CN 200610028557 CN200610028557 CN 200610028557 CN 200610028557 A CN200610028557 A CN 200610028557A CN 1877751 A CN1877751 A CN 1877751A
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- insulator
- coat
- organosilicon
- equipment
- pollution flashover
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Abstract
The invention discloses an antipollution flashover insulator in the high-pressure transmission equipment, which contains a layer of organosilicon coating layer on the surface of insulator. The invention possesses cheap price and reliable property, which can be applied without condition limit.
Description
Technical field
The present invention relates to high voltage power transmission equipment, relate in particular to a kind of insulator.
Background technology
Insulator is the defeated vitals that becomes in the station equipment of high pressure, is mainly used among high voltage power transmission and transforming circuit and the various electric equipment, plays insulation, mechanical connection and support effect.The insulator that adopts on transmission line has plate-shaped suspension type and excellent type suspension type two big classes by the version branch, and presses dielectric substance classification, and three types of porcelain, glass, composite organic insulator are arranged.The power transmission and transformation equipment outer insulation pollution flashover that air pollution causes has caused serious harm to electric power system.China is vast in territory, and geographic climate changes greatly, and 2/3 area belongs to the high altitude localities, and also having a lot of places is the multiple districts of thunder and lightning, and icing, salt fog, birds droppings etc. cause that the problem of insulator string flashover is also very outstanding, have a strong impact on safe operation of power system.After pollution flashover accident took place, reclosing was difficult for, and causes large tracts of land to have a power failure for a long time, tends to cause great economic loss.。In the high voltage power transmission and transforming station track road in several insulator arc-over accidents to electric power system harm maximum to calculate pollution flashover accident.When pollution flashover took place, lightning arrester can not move, and the circuit breaker reclosing is difficult for successfully, and the loss that causes thus is nearly 10 times of lightning accident.
Traditional anti-pollution flashover measure: increase creep distance, clean insulator, install the full skirt cover additional, be coated with silicone oil, silicone grease, coating such as cured.
Adjustment equipment is creepage than apart from (be called for short transfer climb), transfers being extensive use of because of following reason restriction of the measure of climbing: transfer the expense of climbing to be difficult to bear; Change the higher equipment of structure height outside former leaded long, the sag of line conductor and converting equipment is increased, cause alternate or distance to the ground reduces; The site operation intractability of equipment replacement is very big, as not handling and will bringing hidden danger to safe operation.
The equipment cleaning, it is the original insulation level of restorer that power transmission and transforming equipment porcelain surface filth cleans, prevent the effective measures that pollution flashover accident takes place.But the cleaning overwhelming majority of grid equipment is adopt to have a power failure cleaning and meeting stops the measure that must sweep, and this kind behave is not only cleaned not thorough, and expends huge man power and material; Living water washing is subjected to washing used water quality, purging method, is rinsed insulator surface contamination amount, the strictness restriction of conditions such as charging equipment installation site and ambient temperature, wind direction on every side, takes place by the flashover fault towards equipment or nearby device; Compressed air piping and druming insulator surface is adopted in charged air-blowing cleaning, but air temperature rising after compression produces condensation, reduces the performance of facility main insulation, has a strong impact on the fail safe of live line working; There is not the problem in Living water washing, the charged air-blowing facility in charged mechanical dry cleaning, but existing charged mechanical sweeper adopts the pistol electric drill as power source, and the weight of facility is big, easily worn part is many, cleaning strength is little, the cleaning weak effect.Influenced by the weight etc. of implement structure design, insulating material, pistol electric drill formula scavenging machine can't be applicable to the cleaning work of 220kv and above equipment.
Install the full skirt cover additional, being coated with antifouling paint or installing the full skirt cover additional on equipment porcelain spare surface is the effective remedial measure that prevents the equipment pollution flashover, but the different and bonding quality problem of the material of full skirt cover, the full skirt that occurs in service overlaps phenomenons such as distortion, the limit of collapsing, bonding plane cracking, thereby influences be extensive use of [18] of this measure.
Before the eighties, be to improve converting equipment external insulation resistant and dodge ability, areas such as North China, northeast, Shandong once extensively adopted silicone oil, silicone grease, coating such as cured, anti-pollution flashover is played better effect, but the useful life of silicone oil is shorter, and ground is cured not to be suitable for limitation such as dust pollution district.
Summary of the invention
The problem to be solved in the present invention is existing insulator dirt-proof method expense height, and poor stability is subjected to the objective condition restriction, proposes a kind of antifouling flash insulator.Antifouling flash insulator of the present invention is cheap, and dependable performance is used not limited by objective condition.
The present invention is achieved in that a kind of antifouling flash insulator, comprises an insulator, it is characterized in that, there is one deck organosilicon coat on the surface of described insulator.
Described organosilicon coat is a nano-metal-oxide modified organic silicon coat.
Described organosilicon coat is nano-titanium dioxide modified organosilicon coat.
Described coat thickness is the 0.1-1 millimeter.
The present invention utilizes this coating to prevent insulator and causes the power transmission and transformation equipment outer insulation pollution flashover owing to be subjected to air pollution, thereby prevent that electric power system from causing serious harm at former insulator surface coating one deck organic silicon coating.Because complete coated insulation of coating, the insulator electric property is reliable, and because organosilicon material has fabulous weatherability, and is just coating before insulator is installed, and uses very conveniently, not limited by objective condition at all.
Description of drawings
Below in conjunction with accompanying drawing, provide the specific embodiment of the present invention:
Fig. 1 is a cutaway view of the present invention.
Embodiment
As shown in Figure 1: a kind of antifouling flash insulator, comprise an insulator 1, there is one deck organosilicon coat 2 on the surface of described insulator.
Described organosilicon coat 2 is a nano-metal-oxide modified organic silicon coat, has intensity preferably.
Described organosilicon coat 2 is nano-titanium dioxide modified organosilicon coat, has excellent mechanical intensity and electric property.
In order to guarantee that coat 2 has certain intensity and electric property, described coat thickness is the 0.1-1 millimeter.
Claims (4)
1. an antifouling flash insulator comprises an insulator, it is characterized in that, there is one deck organosilicon coat on the surface of described insulator.
2. antifouling flash insulator according to claim 1 is characterized in that, described organosilicon coat is a nano-metal-oxide modified organic silicon coat.
3. antifouling flash insulator according to claim 2 is characterized in that, described organosilicon coat is nano-titanium dioxide modified organosilicon coat.
4. according to claim 1,2 or 3 described arbitrary antifouling flash insulators, described coat thickness is the 0.1-1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610028557 CN1877751A (en) | 2006-07-03 | 2006-07-03 | Pollution flashover preventing insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610028557 CN1877751A (en) | 2006-07-03 | 2006-07-03 | Pollution flashover preventing insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1877751A true CN1877751A (en) | 2006-12-13 |
Family
ID=37510148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610028557 Pending CN1877751A (en) | 2006-07-03 | 2006-07-03 | Pollution flashover preventing insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1877751A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101265B (en) * | 2007-08-02 | 2010-09-01 | 国网电力科学研究院 | Power transmission and transformation equipment outer insulation equivalent ash deposit density measuring method and device |
| CN102254647A (en) * | 2011-05-12 | 2011-11-23 | 清华大学 | Composite insulating material and preparation method thereof |
| CN102568713A (en) * | 2012-03-09 | 2012-07-11 | 江苏新澳电力技术有限公司 | Bird droppings prevention insulator |
-
2006
- 2006-07-03 CN CN 200610028557 patent/CN1877751A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101265B (en) * | 2007-08-02 | 2010-09-01 | 国网电力科学研究院 | Power transmission and transformation equipment outer insulation equivalent ash deposit density measuring method and device |
| CN102254647A (en) * | 2011-05-12 | 2011-11-23 | 清华大学 | Composite insulating material and preparation method thereof |
| CN102254647B (en) * | 2011-05-12 | 2013-05-29 | 清华大学 | Composite insulating material and preparation method thereof |
| CN102568713A (en) * | 2012-03-09 | 2012-07-11 | 江苏新澳电力技术有限公司 | Bird droppings prevention insulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |