CN204270757U - A kind of buses of insulation tubes of electric power system and electric power system - Google Patents
A kind of buses of insulation tubes of electric power system and electric power system Download PDFInfo
- Publication number
- CN204270757U CN204270757U CN201420765027.5U CN201420765027U CN204270757U CN 204270757 U CN204270757 U CN 204270757U CN 201420765027 U CN201420765027 U CN 201420765027U CN 204270757 U CN204270757 U CN 204270757U
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- buses
- insulation tubes
- main line
- power system
- creepage
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Abstract
The utility model discloses a kind of buses of insulation tubes and electric power system of electric power system, wherein, the buses of insulation tubes of described electric power system, comprise the main line (1) for connecting each equipment in described electric power system, described main line (1) is provided with the insulating sleeve (2) of the closely described main line of parcel (1), described buses of insulation tubes also comprises Creepage extender (3), described insulating sleeve (2) is closely wrapped up in the pipe portion of described Creepage extender (3), the periphery in described pipe portion has skirt section, the outside diameter in described skirt section is greater than the diameter in described pipe portion.Disclosed in the utility model, buses of insulation tubes improves creepage distance, and then improves anti-pollution characteristic, and can prevent effluent stream from being formed, and the anti-soil that improve whole buses of insulation tubes dodges ability, ensure that insulation property, and then improves fail safe.The invention also discloses a kind of electric power system comprising above-mentioned buses of insulation tubes.
Description
Technical field
The utility model relates to electric field, particularly relates to a kind of buses of insulation tubes of electric power system.In addition, the utility model also relates to a kind of electric power system comprising above-mentioned buses of insulation tubes.
Background technology
In recent years, in the significant points such as high-power transformer of transformer station, buses of insulation tubes is applied more and more widely.The similar of buses of insulation tubes is in cable, and nexine is the electric conductor of copper pipe or aluminum pipe, and outside is the hierarchy of multiple material.Buses of insulation tubes is fixed on Steel Structure or concrete support, has that current capacity is large, mechanical strength is high, good insulation preformance, installing space are little and the advantage such as the scope of application is wide.
Buses of insulation tubes as the wire connecting main transformer and inlet wire equipment, and is all connected with bus telescoping and saves between each equipment, and is connected with copper bar between lightning arrester.If these tie points are outside exposed, if there is foreign matter surprisingly to drop on tie point place, phase fault can be there is.In order to prevent the generation of above-mentioned situation, the method for prior art is installing insulating sleeve pipe outside each tie point.Enhance the insulation property of buses of insulation tubes main line in this way, efficiently solve the problem of phase fault.
But, when environment dust is larger around, the dunghill of insulating surface attachment in humid conditions, its soluble substance is water-soluble gradually, form one deck conducting film at insulating surface, the insulation level of insulating sleeve is reduced greatly, the strong electric discharge phenomena occurred under electric field force effect, namely along solid insulating sleeve surface discharge, have sparking time serious and occur.Bus telescoping can be caused to save for environment residing for insulating sleeve and above-mentioned flashover occurs in lightning arrester junction, and the spark in flashover passage or electric arc make insulating surface local overheating cause charing, and damaging surface insulate.This phenomenon can destroy the insulation outside main line, and then the security of operation of buses of insulation tubes is reduced greatly.
Therefore, how to prevent buses of insulation tubes generation pollution flashover, preventing the insulation property caused due to flashover from destroying and the fail safe of main line is reduced is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of buses of insulation tubes of electric power system, can prevent pollution flashover, improves fail safe.Another object of the present utility model is to provide a kind of electric power system comprising above-mentioned buses of insulation tubes, by preventing pollution flashover, improves fail safe.
For solving the problems of the technologies described above, the utility model provides a kind of buses of insulation tubes of electric power system, comprise the main line for connecting each equipment in described electric power system, described main line is provided with the insulating sleeve of the closely described main line of parcel, described buses of insulation tubes also comprises Creepage extender, described insulating sleeve is closely wrapped up in the pipe portion of described Creepage extender, and the periphery in described pipe portion has skirt section, and the outside diameter in described skirt section is greater than the diameter in described pipe portion.
Preferably, described insulating sleeve is specially pyrocondensation insulated tube.
Preferably, the pipe portion of described Creepage extender is specially heat-shrink tube.
Preferably, between described main line and described insulating sleeve, be filled with electric insulating sealant, between the pipe portion of described insulating sleeve and described Creepage extender, be filled with electric insulating sealant.
Preferably, the both sides of the lightning arrester tie point of described main line are all often provided with described Creepage extender mutually, and described lightning arrester tie point and described Creepage extender are at a distance of 0.90m to 1.10m; The side that one or two side tie point of described main line is positioned on described main line is often provided with a described Creepage extender mutually, and tie point described Creepage extender adjacent thereto in described side is at a distance of 0.29m to 0.31m.
Preferably, the one or both sides of the lightning arrester tie point of described main line are all often provided with two described Creepage extenders mutually, and two described Creepage extenders of homonymy are at a distance of 0.29m to 0.31m.
Preferably, the skirt section of described Creepage extender is arranged at the side in described pipe portion.
Preferably, the described side in described skirt section is provided with away from the tie point nearest with the Creepage extender at place, described skirt section.
The utility model also provides a kind of electric power system, and comprise power equipment and connect the buses of insulation tubes of described power equipment, described buses of insulation tubes is specially the buses of insulation tubes described in above-mentioned any one.
The buses of insulation tubes that the utility model provides, only uses on the basis of insulating sleeve at original main line, installs Creepage extender additional in the outside of insulating sleeve.The tight wrap insulate sleeve pipe in pipe portion of Creepage extender, tool skirt section, periphery, pipe portion, the outside diameter in skirt section is greater than the diameter in pipe portion.Due to the electric discharge that pollution flashover is the short line that an electrified body has to pass through to another electrified body along the surface of insulator, large diameter skirt section is equivalent to add the distance between two electrified bodies, namely add creepage distance, and to increase creepage distance be one of effective measures preventing pollution flashover.By the acting in conjunction of insulating sleeve and Creepage extender, improve creepage distance, and then improve anti-pollution characteristic, and can prevent effluent stream from being formed, improve the anti-soil sudden strain of a muscle ability of whole buses of insulation tubes, ensure that insulation property, and then improve fail safe.
The electric power system that the utility model provides has above-mentioned buses of insulation tubes, and because above-mentioned buses of insulation tubes has above-mentioned technique effect, above-mentioned electric power system also should have same technique effect, introduces no longer in detail at this.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of buses of insulation tubes provided by the utility model.
Embodiment
Core of the present utility model is to provide a kind of buses of insulation tubes of electric power system, can prevent pollution flashover, improves fail safe.Another core of the present utility model is to provide a kind of electric power system comprising above-mentioned buses of insulation tubes, by preventing pollution flashover, improves fail safe.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of buses of insulation tubes provided by the utility model.
In this embodiment, the equipment in electric power system is connected by the main line 1 of buses of insulation tubes, realizes the conducting between each equipment.In order to prevent phase fault, being inserted in insulating sleeve 2 by outside main line 1, tightening insulating sleeve 2, making its closely parcel main line 1.The buses of insulation tubes provided in the utility model embodiment also has Creepage extender 3, and Creepage extender 3 comprises pipe portion and skirt section.Pipe portion is enclosed within insulating sleeve 2, tightens pipe portion, makes its tight wrap insulate sleeve pipe 2.Skirt section is arranged on the periphery in pipe portion, and portion is connected with pipe, and the diameter of the large end in skirt section is greater than the diameter in pipe portion.Creepage extender 3 is arranged between the tie point on main line 1, makes the periphery of the insulating sleeve 2 between every two tie points all have large diameter insulator.And every the going up mutually of main line 1 is all provided with identical device.
Due to the electric discharge that pollution flashover is the short line that an electrified body has to pass through to another electrified body along the surface of insulator, large diameter skirt section is equivalent to add the distance between two electrified bodies, namely add creepage distance, and to increase creepage distance be one of effective measures preventing pollution flashover.By the acting in conjunction of insulating sleeve 2 and Creepage extender 3, improve creepage distance, and then improve anti-pollution characteristic, and can prevent effluent stream from being formed, improve the anti-soil sudden strain of a muscle ability of whole buses of insulation tubes, ensure that insulation property, and then improve fail safe.
In above-mentioned embodiment, require that insulating sleeve 2 can closely wrap up main line 1, but in order to easy for installation, the initial inside diameter of insulating sleeve 2 needs the external diameter being greater than main line 1.This just requires that insulating sleeve 2 can tighten after being inserted in.Can obtain thus, insulating sleeve 2 is specially pyrocondensation insulated tube.Use pyrocondensation insulative behind relevant position, use spray gun homogeneous heating, the smooth contraction of pyrocondensation insulated tube can be made, and then can closely wrap up main line 1.This mode not only facilitates installation but also can ensure tight parcel.Also other modes can be used to realize above-mentioned effect, shrink insulated tube, all within protection range of the present utility model as insulating sleeve 2 is specially air.
In above-mentioned embodiment, require that the pipe portion of Creepage extender 3 can tight wrap insulate sleeve pipe 2, but in order to easy for installation, the initial inside diameter in the pipe portion of Creepage extender 3 needs the external diameter being greater than insulating sleeve 2.This just requires that the pipe portion of Creepage extender 3 can tighten after being inserted in.Can obtain thus, the pipe portion of Creepage extender 3 is specially heat-shrink tube.Use after heat-shrink tube is enclosed within relevant position, use spray gun homogeneous heating, the smooth contraction of heat-shrink tube can be made, and then can tight wrap insulate sleeve pipe 2.This mode not only facilitates installation but also can ensure tight parcel.Also other modes can be used to realize above-mentioned effect, and the pipe portion as Creepage extender 3 is specially air collapsible tubes, all within protection range of the present utility model.
In the buses of insulation tubes that the utility model embodiment provides, in order to provide better insulated enclosure effect, electric insulating sealant 4 can be filled between main line 1 and insulating sleeve 2, also can fill electric insulating sealant 4 between insulating sleeve 2 and the pipe portion of Creepage extender 3.After main line 1 surface cleaning is clean, be wound around electric insulating sealant 4, then be inserted in insulating sleeve 2, insulating sleeve 2 is tightened and closely wraps up main line 1.Insulating sleeve 2 surface cleaning is clean, be wound around two-layer electric insulating sealant 4, then be inserted in Creepage extender 3, its pipe portion is tightened and tight wrap insulate sleeve pipe 2.By using electric insulating sealant 4, serving better insulated enclosure effect, and can prevent foreign matter from entering and preventing corrosion.Also other modes can be used to ensure good insulated enclosure effect, as used other devices or direct by tight environmental sealing, all within protection range of the present utility model.
The buses of insulation tubes that the utility model embodiment provides, can do concrete restriction to the installation site of Creepage extender 3.The two ends of main line 1 connect main transformer and inlet wire equipment respectively, are provided with the lightning arrester be connected with main line 1 between two equipment, and wherein the side tie point at main line 1 two ends comprises main transformer tie point and/or inlet wire equipment connection point.During installation, first take tie point apart, divest the original insulated tube within the scope of one deck lightning arrester tie point 1.5m, remove corrosion layer, evenly coat anti-oxidant conductive paste, the wiring clamp ring of cleaning is installed firmly.Be wound around electric insulating sealant 4, be inserted in insulating sleeve 2, make its smooth contraction, seamless to smooth surface, will divest indentation, there lining flat after, install one deck additional, contraction consolidation.Two-layer electric insulating sealant 4 is wound around after clean, and the side in lightning arrester tie point to inlet wire equipment, and lightning arrester tie point is to the side of main transformer, all installs a Creepage extender 3 mutually the every of main line 1.The distance of lightning arrester tie point and Creepage extender 3 is 0.90m to 1.10m, specifically can be 1.00m.The pipe portion of Creepage extender 3 is tightened, and contraction puts in place.Connecting the side in the same way every Creepage extender 3 that mutually installation one other of side tie point to lightning arrester tie point of main transformer.The side tie point and the other Creepage extender 3 that connect main transformer are located at a distance of 0.29m to 0.31m, specifically can be 0.30m.Also simultaneously mutually a Creepage extender 3 can be installed the side tie point connecting inlet wire equipment is every in the same way to the side of lightning arrester tie point, or only wherein side Creepage extender 3 is installed, all within protection range of the present utility model.
In order to continue to increase the creepage distance connected between the side tie point of main transformer and lightning arrester tie point, can to arrange between two Creepage extenders 3, two Creepage extender 3 at a distance of 0.29m to 0.31m between two tie points, specifically can be 0.30m.Similarly, also simultaneously two Creepage extenders 3 can be set between the side tie point connecting inlet wire equipment and lightning arrester tie point, or only wherein side Creepage extender 3 is installed, all within protection range of the present utility model.
By above-mentioned mounting means, add the creepage distance between each tie point, effectively prevent pollution flashover, improve the fail safe of buses of insulation tubes.For quantity and the installation site of Creepage extender 3, can adjust according to actual conditions, connect as Creepage extender 3 is mainly arranged between the side tie point of main transformer and lightning arrester tie point, connect the quantity suitably reducing Creepage extender 3 between the side tie point of inlet wire equipment and lightning arrester tie point, and distance between each parts also the length of environmentally situation or main line 1 can adjust.As long as the effect of antifouling work can be played, all within protection range of the present utility model.
In the buses of insulation tubes that the utility model embodiment provides, the pipe portion of its Creepage extender 3 has certain length, can obtain thus, can arrange skirt section at the diverse location in pipe portion.Skirt section is arranged at the side in pipe portion, and the side making to be provided with skirt section is away from the nearest tie point of the Creepage extender 3 with this place, skirt section.By the way, the distance between each point can be increased as much as possible, play better insulation effect.Also Creepage extender 3 can be placed in the other direction, or skirt section is arranged in the middle of pipe portion, as long as can insulation effect be played, all within protection range of the present utility model.
Except above-mentioned buses of insulation tubes, embodiment of the present utility model also provides a kind of electric power system comprising above-mentioned buses of insulation tubes, and the structure of these other each several parts of electric power system please refer to prior art, repeats no more herein.
Above electric power system provided by the utility model and buses of insulation tubes thereof are described in detail.Apply specific case herein to set forth principle of the present utility model and execution mode, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection range of the utility model claim.
Claims (9)
1. the buses of insulation tubes of an electric power system, comprise the main line (1) for connecting each equipment in described electric power system, described main line (1) is provided with the insulating sleeve (2) of the closely described main line of parcel (1), it is characterized in that, described buses of insulation tubes also comprises Creepage extender (3), described insulating sleeve (2) is closely wrapped up in the pipe portion of described Creepage extender (3), the periphery in described pipe portion has skirt section, and the outside diameter in described skirt section is greater than the diameter in described pipe portion.
2. buses of insulation tubes according to claim 1, is characterized in that, described insulating sleeve (2) is specially pyrocondensation insulated tube.
3. buses of insulation tubes according to claim 1, is characterized in that, the pipe portion of described Creepage extender (3) is specially heat-shrink tube.
4. buses of insulation tubes according to claim 1, it is characterized in that, be filled with electric insulating sealant (4) between described main line (1) and described insulating sleeve (2), between the pipe portion of described insulating sleeve (2) and described Creepage extender (3), be filled with electric insulating sealant (4).
5. buses of insulation tubes according to claim 1, it is characterized in that, the both sides of the lightning arrester tie point of described main line (1) are all often provided with described Creepage extender (3) mutually, and described lightning arrester tie point and described Creepage extender (3) are at a distance of 0.90m to 1.10m; One or two side tie point side be positioned on described main line (1) of described main line (1) is often provided with a described Creepage extender (3) mutually, and tie point described Creepage extender (3) adjacent thereto in described side is at a distance of 0.29m to 0.31m.
6. buses of insulation tubes according to claim 5, it is characterized in that, the one or both sides of the lightning arrester tie point of described main line (1) are all often provided with two described Creepage extenders (3) mutually, and two described Creepage extenders (3) of homonymy are at a distance of 0.29m to 0.31m.
7. buses of insulation tubes according to claim 1, is characterized in that, the skirt section of described Creepage extender (3) is arranged at the side in described pipe portion.
8. buses of insulation tubes according to claim 7, is characterized in that, the described side being provided with described skirt section is away from the nearest tie point of the Creepage extender (3) with place, described skirt section.
9. an electric power system, comprise power equipment and connect the buses of insulation tubes of described power equipment, it is characterized in that, described buses of insulation tubes is specially the buses of insulation tubes described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765027.5U CN204270757U (en) | 2014-12-08 | 2014-12-08 | A kind of buses of insulation tubes of electric power system and electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765027.5U CN204270757U (en) | 2014-12-08 | 2014-12-08 | A kind of buses of insulation tubes of electric power system and electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270757U true CN204270757U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420765027.5U Active CN204270757U (en) | 2014-12-08 | 2014-12-08 | A kind of buses of insulation tubes of electric power system and electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270757U (en) |
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2014
- 2014-12-08 CN CN201420765027.5U patent/CN204270757U/en active Active
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