CN203787230U - Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings - Google Patents
Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings Download PDFInfo
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- CN203787230U CN203787230U CN201420008582.3U CN201420008582U CN203787230U CN 203787230 U CN203787230 U CN 203787230U CN 201420008582 U CN201420008582 U CN 201420008582U CN 203787230 U CN203787230 U CN 203787230U
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- accessory system
- insulator
- ring
- steel pin
- chapeau
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Abstract
The utility model relates to an insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings. The insulator is characterized in that a steel leg accessory system and/or an iron cap accessory system are/is arranged at a steel leg and/or an iron cap of a porcelain or glass plate shaped suspension type insulator, a high voltage ring accessory system is arranged on a grading ring on a high voltage side, a grounding ring accessory system is arranged on a grading ring on a grounding side, the inner layer conducting parts of the steel leg accessory system, the iron cap accessory system, the high voltage ring accessory system and the grounding ring accessory system are contacted with the steel leg, the iron cap, the grading ring on the high voltage side and the grading ring on the grounding side, outer layer insulation parts are closely contacted with the inner layer conducting parts, and conducting rings are arranged on the inner sides and the upper sides of the steel leg accessory system and the iron cap accessory system. According to the insulator, the conducting parts of the insulator are isolated from outside air, so that the possibility of generating corona discharge is eliminated; when exposed parts are subjected to corona discharge, charges of the corona discharge can be attracted, and the corona starting voltage can be improved. The insulator has the advantages that leakage current can be reduced, corrosion of the steel leg, the iron cap and the grading rings can be reduced, the pollution flashover voltage can be improved, and the operation reliability of the insulator can be improved.
Description
Technical field
The utility model relates to the insulator that a kind of electric power system is used, and is specially a kind of insulator that can reduce corona loss and Electromagnetic Interference and raising gold utensil efficiency of preservation.
Background technology
Insulator is in operation, surrounding's electric field of its electrode is extremely inhomogeneous, before the air gap between electrode is punctured completely, near the electrode of insulator, particularly near the very little electrode of radius of curvature, because local electric field strength there has exceeded ionisation of gas field intensity, gas is ionized, thereby occur corona discharge.When corona discharge, can send blue halation, and with hiss, ambient air temperature be raise.There is following problem in corona discharge: can produce high-frequency pulse current, radio communication is caused to interference; Can make air generation chemical reaction, generate strong oxidizer and the corrosive agent such as ozone, can cause damage or corrosion to the insulation property of insulator and metal gold utensil; Consume energy.So ask and avoid or limit corona at ultra-high-tension power transmission line upper stress, particularly, in superhigh pressure and ultra high voltage system, energy loss and electromagnetic wave that restriction corona causes have become the major issue that must solve to wireless interference.
Generally, air can show good insulation property.The external insulation of insulator ensures the insulation between its different potentials by air.And corona discharge is near atmospherical discharges gold utensil, so near air condition gold utensil is particularly important.In recent years, because the aggravation of atmospheric environment is deteriorated, mist, haze and the muddy thing that suspends have produced adverse influence to the insulation property of air.In haze mixture, contain positive and negative ion, the aaerosol solution that contains these ions in air is wrapped in the outer surface of insulator electrode, under electric field action, very easily ionizing, thereby cause insulator corona inception voltage greatly to reduce, first there is corona discharge in the electrode place little in radius of curvature.
Be in operation, the incidental Second Problem of insulator hardware is corrosion.Gold utensil corrosion can cause that the sectional dimension of gold utensil reduces, tensile strength reduces, material becomes fragile, thereby causes the disconnection of transmission line or drop, and causes the major accident of the tripping operation that has a power failure.Need to carry out in high-altitude due to the maintenance of gold utensil and maintenance, construct extremely inconvenient, so need to carry out gold utensil effectively anticorrosionly, prevent the generation of above-mentioned accident.
At present, insulator hardware generally adopts dip galvanized anticorrosion, this anti-corrosion mode can meet requirement for anticorrosion in general area, and usually do not reach expected service life in industrial pollution area, so need to be under the prerequisite of guaranteeing dimensional accuracy, increase Zinc Coating Thickness as far as possible, can reduce again the adhesive force between gold utensil but zinc coat is too thick.
The long-term suspension insulator moving under filthy environment condition, its gold utensil seriously corroded affects the operational reliability of insulator.This corrosion appears at the position of contiguous steel pin mucilage binding conventionally, even can make steel pin diameter be reduced to original 1/2-1/3 when serious, thereby greatly reduces the mechanical strength of insulator string, the serious accident that finally can cause the fracture of steel pin, wire to land.
Research shows, the main cause of insulator hardware corrosion is that the oxidation of electrolytic corrosion, electrochemical corrosion and ozone generating causes, and these ozone are due to the partial discharge generation at steel pin place.For electric insulator steel foot etching problem; adopt near the method that installs zinc cover the mucilage binding end face of steel pin additional abroad; in the borderline region of steel pin and cement mucilage binding, set up a sacrificial corrsion gold utensil, adopt at present the protection of zinc cover selected by increasing country.
Also discovery in service, also usually there is corrosion phenomenon in the grading ring of insulator.
Summary of the invention
The purpose of this utility model is for above-mentioned present situation, aims to provide a kind of insulator that can reduce corona loss and Electromagnetic Interference and raising gold utensil efficiency of preservation.
The implementation of the utility model object is, can reduce the insulator of corona loss and Electromagnetic Interference and raising gold utensil efficiency of preservation, at steel pin and/or the chapeau de fer place of porcelain or glass cap and pin insulator, steel pin and/or chapeau de fer accessory system is set; The inner side of the outer layer segment of steel pin accessory system is provided with conducting ring; The upside of the outer layer segment of chapeau de fer accessory system is provided with conducting ring;
On the grading ring of insulator high-pressure side, high compression ring accessory system is set; On insulator ground connection side grading ring, ground loop accessory system is set;
Steel pin accessory system, chapeau de fer accessory system are made up of two parts, and internal layer current-carrying part contacts with steel pin, chapeau de fer, outer layer insulation part and internal layer current-carrying part close contact;
High compression ring accessory system, ground loop accessory system are made up of two parts, and internal layer current-carrying part contacts with high-pressure side grading ring, ground connection side grading ring, outer layer insulation part and internal layer current-carrying part close contact.
The utlity model has following advantage:
1, steel pin accessory system and chapeau de fer accessory system are divided into two parts, internal layer current-carrying part contacts with the electrode of insulator, accessory system by most of steel pin and chapeau de fer, bottom and outside air isolated, stop the possibility of this partial electrode generation corona discharge, the initial corona voltage that has improved insulator, has alleviated electromagnetic interference;
2,, in the time that the exposed part of steel pin produces corona discharge, the conducting ring of the outer layer segment inner side of steel pin accessory system can attract the electric charge of corona discharge, effectively improves the corona inception voltage of insulator;
3, in the time that the exposed part of chapeau de fer produces corona discharge, the conducting ring of the outer layer segment upside of chapeau de fer accessory system can attract the electric charge of corona discharge, effectively improves the corona inception voltage of insulator;
4, high compression ring accessory system, by isolated to the first half of high pressure grading ring and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has improved the initial corona voltage of insulator, has alleviated electromagnetic interference;
5, ground loop accessory system, by isolated to the latter half of ground equalizer ring and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has improved the initial corona voltage of insulator, has alleviated electromagnetic interference;
6, the outer layer insulation part of steel pin accessory system and chapeau de fer accessory system has hydrophobicity, and the leakage current of insulator surface pollution layer is greatly reduced, and owing to having increased creepage distance, leakage current is further reduced again, has effectively limited the generation of electrolytic corrosion;
7, the internal layer current-carrying part of steel pin accessory system and steel pin close contact, effectively weakened the generation of electrochemical corrosion; Near the regional area close contact of the cement mucilage binding outer layer insulation part of steel pin accessory system and steel pin, has effectively weakened the generation of electrochemical corrosion;
8,, the main cause of insulator hardware corrosion three be that the oxidation of ozone generating causes, and these ozone are due to the partial discharge generation at steel pin place.Steel pin accessory system, by isolated to most of steel pin and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has effectively weakened the oxidation of ozone generating; The inner side of the outer layer segment of steel pin accessory system is provided with conducting ring, has improved near the Electric Field Distribution of steel pin.In the time that the exposed part of steel pin produces corona discharge, conducting ring can attract the electric charge of corona discharge, effectively improves the corona inception voltage of insulator, effectively weakens the oxidation of ozone generating;
9, the gold utensil of cap and pin insulator corrosion usually occurs near the surface of cement glue or its.Because electric insulator steel foot place current density is large, the corrosion of steel pin than the seriously corroded of chapeau de fer lower edge many, therefore the gold utensil corrosion of this class insulation mainly occurs on steel pin.The interior layer segment of steel pin accessory system is conducting polymer composite, and it has expanded the volume of steel pin, has reduced the current density at this place, has effectively limited the corrosion of steel pin;
10, the outer layer segment of steel pin accessory system and chapeau de fer accessory system is made up of organic material, so improved the pollution flashover voltage of insulator;
11, below the full skirt of cap and pin insulator, there are multiple ribs to exist, look it is to have increased leakage distance, facts have proved but move, the pollution flashover voltage of insulator is not only relevant with leakage distance, also relevant with the moulding of insulator, under wind action, between rib, recess easily produces vortex, and groove becomes filthy easily long-pending part, and the filth at this position is also difficult for by rain-out, run into the greasy weather, these filths are made moist and are conducted electricity.Two rib close contacts of the outer layer segment of steel pin accessory system and insulator umbrella below, the filth of having stopped recess between these ribs produces, and has improved the pollution flashover voltage of insulator;
12, the in the situation that of disk-shaped suspension glass insulator, two rib close contacts of the outer layer segment of steel pin accessory system and insulator glass full skirt below, in the time there is self-destruction in glass insulator, steel pin accessory system can be bonding be lived most glass fragment, equipment and personal security near ensureing; Same reason, in the time having people's gunslinging cap and pin insulator, steel pin accessory system can be bonding be lived most glass or porcelain fragment, equipment and personal security near ensureing.
The utility model is also applicable to insulator and the grading ring of every other type.
Brief description of the drawings
Fig. 1 arranges one of structural representation of the present invention of accessory system at porcelain or glass dish type suspension insulator steel pin place,
Fig. 2 be arrange at porcelain or glass dish type suspension insulator steel pin place accessory system structural representation of the present invention two,
Fig. 3 is the structural representation of the present invention that accessory system is set at porcelain or glass dish type suspending insulator iron cap place
Fig. 4 is the structural representation of the present invention that accessory system is set on the grading ring of composite line rod insulator insulator high-pressure side,
Fig. 5 be on the grading ring of composite line rod insulator insulator high-pressure side and ground connection side grading ring on the structural representation of the present invention of accessory system is set respectively.
Embodiment
Steel pin accessory system, chapeau de fer accessory system, high compression ring accessory system, ground loop accessory system are made up of internal layer current-carrying part, outer layer insulation part, the internal layer current-carrying part of steel pin accessory system, chapeau de fer accessory system, high compression ring accessory system, ground loop accessory system is conducting polymer composite part, and outer layer insulation part is insulating polymer material part.
The utility model is described in detail in detail with reference to the accompanying drawings.
With reference to Fig. 1, at steel pin 5 places of porcelain or glass cap and pin insulator, steel pin accessory system 1 is set, steel pin accessory system 1 is made up of two parts, and internal layer current-carrying part 1-1 is conducting polymer composite part, contacts with steel pin; Outer layer insulation part 1-2 is insulating polymer material part, with interior layer segment 1-1 close contact; The inner side of the outer layer segment of steel pin accessory system 1 is provided with conducting ring 1-2.
Accessory system 1, by isolated to insulator Lower Half steel pin and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has improved the initial corona voltage of insulator, has alleviated electromagnetic interference.
The conducting ring 1-2 of the inner side of steel pin accessory system 1 outer layer segment, has improved near the Electric Field Distribution of steel pin 5.In the time that the exposed part of steel pin 5 produces corona discharge, conducting ring 1-2 can attract the electric charge of corona discharge, effectively improves the corona inception voltage of insulator.
The insulating polymer material part that the outer layer segment of steel pin accessory system 1 is hydrophobicity, the leakage current of insulator surface pollution layer is greatly reduced, because accessory system 1 has increased creepage distance, leakage current is further reduced again, effectively limited the generation of electrolytic corrosion.Internal layer conducting polymer composite part with steel pin 5 close contacts, has effectively weakened the generation of electrochemical corrosion; Outer layer insulation macromolecular material part with near the regional area close contact of cement mucilage binding steel pin 5, has effectively weakened the generation of electrochemical corrosion.
Steel pin accessory system 1, by isolated to most of steel pin and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has effectively weakened the oxidation of ozone generating; The conducting ring 1-2 of steel pin accessory system 1 outer layer insulation part inner side, has improved near the Electric Field Distribution of steel pin 5.In the time that the exposed part of steel pin 5 produces corona discharge, conducting ring can attract the electric charge of corona discharge, effectively improves the corona inception voltage of insulator, effectively weakens the oxidation of ozone generating.
The gold utensil corrosion of cap and pin insulator usually occurs near the surface of cement glue or its.Because electric insulator steel foot 5 place's current densities are large, the corrosion of steel pin 5 than the seriously corroded of chapeau de fer lower edge many, therefore the gold utensil corrosion of this class insulation mainly occurs on steel pin 5.The internal layer conducting polymer composite part of steel pin accessory system 1 has expanded the volume of steel pin 5, has reduced the current density at this place, has effectively limited the corrosion of steel pin.
Steel pin accessory system 1 outer layer insulation organic material part has improved the pollution flashover voltage of insulator.
Below the full skirt of cap and pin insulator, there are multiple ribs to exist, look it is to have increased leakage distance, facts have proved but move, the pollution flashover voltage of insulator is not only relevant with leakage distance, also relevant with the moulding of insulator, under wind action, between rib, recess easily produces vortex, and groove becomes filthy easily long-pending part, and the filth at this position is also difficult for by rain-out, run into the greasy weather, these filths are made moist and are conducted electricity.Two rib close contacts of the outer layer insulation part of steel pin accessory system 1 and insulator umbrella below, the filth of having stopped recess between these ribs produces, and has improved the pollution flashover voltage of insulator.
The in the situation that of disk-shaped suspension glass insulator, two rib close contacts of the outer layer segment of steel pin accessory system 1 and insulator glass full skirt below, when when self-destruction occurs glass insulator, steel pin accessory system 1 can be bonding be lived most glass fragment, equipment and personal security near ensureing; Same reason, in the time having people's gunslinging cap and pin insulator, steel pin accessory system 1 can be bonding be lived most glass or porcelain fragment, equipment and personal security near ensureing.
With reference to Fig. 2, the difference of Fig. 2 and Fig. 1 is only that the outer layer segment of steel pin accessory system 1 has a round hole 1-3, and in circle hole, arranged outside has conducting ring 1-4.The steel pin accessory system 1 of Fig. 2 has the repertoire of Fig. 1 steel pin accessory system 1, on this basis, circle hole 1-3 can reduce near filth steel pin, is convenient to the handling operation of on-the-spot insulator, conducting ring 1-4 can short circuit insulator surface leakage current, improve the pollution flashover voltage of insulator.
With reference to Fig. 3, at chapeau de fer 6 places of porcelain or glass cap and pin insulator, chapeau de fer accessory system 2 is set, the internal layer current-carrying part 2-1 of chapeau de fer accessory system 2 is conducting polymer composite parts, contacts with chapeau de fer 6; Outer layer insulation part is insulating polymer material part, and with internal layer current-carrying part 2-1 close contact, the upside of the outer layer segment of chapeau de fer accessory system 2 is provided with conducting ring 2-2.
Accessory system 2 by the chapeau de fer of insulator, bottom and outside air isolated, stopped this partial electrode and produced the possibility of corona discharge, improved the initial corona voltage of insulator, alleviated electromagnetic interference.
The conducting ring 2-2 of chapeau de fer accessory system outer layer insulation part upside, has improved near the Electric Field Distribution of chapeau de fer 6.In the time that the upside exposed part of chapeau de fer 6 produces corona discharge, conducting ring 2-2 can attract the electric charge of corona discharge, effectively improves the corona inception voltage of insulator.
Same reason, the insulating polymer material part that the outer layer segment of chapeau de fer accessory system is hydrophobicity, the leakage current of insulator surface pollution layer is greatly reduced, again because chapeau de fer accessory system 2 has increased creepage distance, leakage current is further reduced, effectively limited the generation of electrolytic corrosion.Chapeau de fer accessory system 2, by isolated to most of chapeau de fer and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has effectively weakened the oxidation of ozone generating.
With reference to Fig. 4, on the high-pressure side grading ring 8 of composite line rod insulator insulator 7, high compression ring accessory system 3 is set, internal layer current-carrying part 3-1 is conducting polymer composite part, contacts with high-pressure side grading ring 8; Outer layer insulation part 3-2 is insulating polymer material part, with internal layer current-carrying part 3-1 close contact.High compression ring accessory system 3, by isolated to the first half of grading ring 8 and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has improved the initial corona voltage of insulator, has alleviated electromagnetic interference.High compression ring accessory system 3, by isolated to most of grading ring and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has effectively weakened the oxidation of ozone generating, has slowed down grading ring corrosion.
With reference to Fig. 5, on the high-pressure side grading ring 8 of composite line rod insulator insulator 7, high compression ring accessory system 3 is set, the internal layer current-carrying part 3-1 of high compression ring accessory system 1 is conducting polymer composite part, contacts with high-pressure side grading ring 3; Outer layer insulation part is insulating polymer material part, with interior layer segment 3-1 close contact.On the ground connection side grading ring 9 of insulator 7, ground loop accessory system 4 is set, ground loop accessory system 4 internal layer current-carrying part 4-1 are conducting polymer composite parts, contact with ground connection side grading ring 9; Outer layer insulation part 4-2 is insulating polymer material part, with interior layer segment 4-1 close contact.
High compression ring accessory system 3, by isolated to the first half of high pressure grading ring 8 and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has improved the initial corona voltage of insulator, has alleviated electromagnetic interference.The main cause of grading ring corrosion is that the oxidation of ozone generating causes, and these ozone are because the partial discharge at grading ring place produces.High compression ring accessory system 3, by isolated to most of grading ring and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has effectively weakened the oxidation of ozone generating, has slowed down grading ring corrosion.
Ground loop accessory system 4, by isolated to the latter half of ground equalizer ring 9 and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has improved the initial corona voltage of insulator, has alleviated electromagnetic interference.Ground loop accessory system 4, by isolated to most of grading ring and outside air, has been stopped the possibility of this partial electrode generation corona discharge, has effectively weakened the oxidation of ozone generating, has slowed down grading ring corrosion.
Claims (3)
1. can reduce the insulator of corona loss and Electromagnetic Interference and raising gold utensil efficiency of preservation, it is characterized in that, at steel pin and/or the chapeau de fer place of porcelain or glass cap and pin insulator, steel pin and/or chapeau de fer accessory system are set;
On the grading ring of insulator high-pressure side, high compression ring accessory system is set; On insulator ground connection side grading ring, ground loop accessory system is set;
Steel pin accessory system, chapeau de fer accessory system are made up of two parts, and internal layer current-carrying part contacts with steel pin, chapeau de fer, outer layer insulation part and internal layer current-carrying part close contact;
High compression ring accessory system, ground loop accessory system are made up of two parts, and internal layer current-carrying part contacts with high-pressure side grading ring, ground connection side grading ring, outer layer insulation part and internal layer current-carrying part close contact;
The inner side of the outer layer segment of steel pin accessory system is provided with conducting ring; The upside of the outer layer segment of chapeau de fer accessory system is provided with conducting ring.
2. the insulator that can reduce corona loss and Electromagnetic Interference and raising gold utensil efficiency of preservation according to claim 1, the outer layer segment that it is characterized in that steel pin accessory system (1) has a round hole (1-3), and in circle hole, arranged outside has conducting ring (1-4).
3. the insulator that can reduce corona loss and Electromagnetic Interference and raising gold utensil efficiency of preservation according to claim 1, the internal layer current-carrying part that it is characterized in that steel pin accessory system, chapeau de fer accessory system, high compression ring accessory system, ground loop accessory system is conducting polymer composite part, and outer layer insulation part is insulating polymer material part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008582.3U CN203787230U (en) | 2014-01-07 | 2014-01-07 | Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008582.3U CN203787230U (en) | 2014-01-07 | 2014-01-07 | Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787230U true CN203787230U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008582.3U Withdrawn - After Issue CN203787230U (en) | 2014-01-07 | 2014-01-07 | Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700452A (en) * | 2014-01-07 | 2014-04-02 | 湖北鑫德赛绝缘技术有限公司 | Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings |
| CN108735400A (en) * | 2018-05-21 | 2018-11-02 | 国家电网公司 | Plate-shaped suspension type insulator |
-
2014
- 2014-01-07 CN CN201420008582.3U patent/CN203787230U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700452A (en) * | 2014-01-07 | 2014-04-02 | 湖北鑫德赛绝缘技术有限公司 | Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings |
| CN103700452B (en) * | 2014-01-07 | 2016-09-28 | 湖北德赛绝缘设备技术发展有限公司 | Corona loss and Electromagnetic Interference and the insulator of raising gold utensil efficiency of preservation can be reduced |
| CN108735400A (en) * | 2018-05-21 | 2018-11-02 | 国家电网公司 | Plate-shaped suspension type insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160928 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |