CN106448831A - Waterproof large-current ethylene-propylene insulation bus - Google Patents
Waterproof large-current ethylene-propylene insulation bus Download PDFInfo
- Publication number
- CN106448831A CN106448831A CN201610758993.8A CN201610758993A CN106448831A CN 106448831 A CN106448831 A CN 106448831A CN 201610758993 A CN201610758993 A CN 201610758993A CN 106448831 A CN106448831 A CN 106448831A
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- CN
- China
- Prior art keywords
- bus
- waterproof
- pipe
- current
- electric current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/16—Rigid-tube cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
Landscapes
- Cable Accessories (AREA)
Abstract
The invention relates to a waterproof large-current ethylene-propylene insulation bus, and belongs to the technical field of power equipment. The bus comprises a hollow conductive pipe, an insulation layer and stress cones, wherein the insulation layer wraps the conductive pipe, the stress cones wrap a middle segment of the insulation layer, a waterproof sealing strip and a thermal shrinkage sealing pipe wrap joint parts between the stress cones and the insulation layer, and umbrella skirts are arranged on the stress cones. In the waterproof large-current ethylene-propylene insulation bus provided by the invention, a main body is a hollow copper pipe or an aluminum alloy pipe, and the waterproof large-current ethylene-propylene insulation bus is large in surface area; and compared with a conventional rectangular bus, the surface current density of a conductor is uniformly distributed, and the highest rated current can reach 6,300-8,000A.
Description
Technical field
The present invention relates to a kind of waterproof big electric current second the third isolated bus, belong to electrical equipment technical field.
Background technology
With China's expanding economy, being continuously increased of power load, transforming plant main transformer capacity continues to increase, transformer
10kV inlet wire side bus rated current is increasing, and conventional copper bar and rectangular bus bar are difficult to meet bus with in structure technically
Heating and the requirement of short-circuit electromotive force, thus cause the increase of added losses, skin effect coefficient, cause under the ability of damming
Fall, CURRENT DISTRIBUTION are uneven.Especially separate unit main transformer capacity be 180MVA and above when, main transformer 10kV outgoing line side only have bus
The electric power problem of bridge itself, heating problem, also concrete near bus bridge support insulator, Steel Structure and bus bridge
The reinforcing bar heating problem that inductive loop causes in electromagnetic field in post, basis, bus are chronically exposed to rainwater in natural air
Erosion problem, because used increasing bus alternate safe distance problem is considered to safe distance after drenching with rain.
Once busbar short-circuit, open bus, support insulator, Transformer Winding suffer from damage. affect substation safety
The reliability run and power.For solving the problems referred to above, increasing big electric current second third copper pipe bus that insulate is used to replace square
The method for designing of shape bus improves the effective rate of utilization of bus material, domestic shorter owing to entering this field time, Yi Jiji
Art research and development ability, many-sided reason such as the limitation of insulating materials, manufacture craft and produce key points control and grasp not overripened.
The appearance of especially present cable-type cast all insulation bus, uses insulating materials and the production work of cable completely
Skill, the matured product such as cable connector has been also applied to during the production of tube type bus installs, has made cable-type tube type bus be really achieved
The quality standard that cable produces.
Content of the invention
The invention solves the problems that and technical problem is that：The shortcoming overcoming above-mentioned technology.There is provided and a kind of tie waterproof big electric current second third
Isolated bus.
In order to solve above-mentioned technical problem, the technical scheme that the present invention proposes is：A kind of waterproof big electric current second third insulate mother
Line, including：The contact tube of hollow, the insulating barrier being wrapped in outside described contact tube, the stress being wrapped in the outer stage casing of described insulating barrier
Cone；Seam crossing between described stress cone and described insulating barrier is enclosed with waterproof sealing band and pyrocondensation seals pipe, described stress cone
On there is full skirt.
Such scheme is further improved by：Described contact tube is copper pipe or aluminium-alloy pipe.
Waterproof big electric current second the third isolated bus that the present invention provides, main body is hollow copper tubing or aluminium-alloy pipe, and surface area is big,
Relatively conventional rectangular bus bar, its conductive surface electric current distribution is uniform, and maximum amount determines electric current up to 6300-8000A.
Good insulation preformance：Waterproof big electric current second the third isolated bus uses closed shield insulation mode, and earthing of casing current potential is
Zero, bus surface electric field distribution is uniform, and electrical insulation properties is strong.Can directly pass through cable duct and cable interlayer.
Mechanical strength is high：Main body allowable stress is 4 times of rectangular bus bar, and the short circuit current that can bear is big, and mechanical strength is high,
Bus is made to support span maximum up to 8 meters.
Good heat dissipation, temperature rise are low：Waterproof big electric current second the third isolated bus is hollow conductor, and bus two ends have air vent, interior
Air channel, footpath energy self-assembling formation hot-air convection, radiating condition is compared well conventional bus bar and to be got well.
It is lost low：It is low that the profile of waterproof big electric current second the third isolated bus determines its surface skin effect coefficient, Kf 1,
AC resistance is little, thus the power loss of bus is little；The dielectric loss of cross-linked shielding isolated bus insulating barrier is less than 0.01.
Insulating materials heat-resistance coefficient is high：Big electric current second the third isolated bus has excellent electric property and chemical stability, is situated between
Matter loss is little, ageing-resistant, coordinate other insulating materials, service life >=30 year of product.
Resist electric vibration resistance strong：Dynamic stability result of the test shows, voltage 10kV, the copper pipe mother of rated current 4000A
Line, can bear 63kA（4s）Short-circuit current rush；Waterproof big electric current second the third isolated bus directly can be fixed on Steel Structure by it
Go up or on concrete support, cancel wall bushing and support insulator, there is stronger shock resistance.
Not by environmental disturbances, reliability is high：The every of waterproof big electric current second the third isolated bus is lock shield insulation mutually, internal
Produce without condensation, and eliminate extraneous moisture, the ground connection caused by dust and foreign object and phase fault, run and there is height
The reliability of degree.
Easy for installation, maintenance workload is few：Good water-proof effect, has the relative magnitude of interference, makes between terminal attachment with bus
Obtain and between terminal and bus insulation, do not have any space to install insulated enclosure pipe additional at annex two ends, seal pipe two ends and be wound around insulation
Band, band outer layer pyrocondensation seals pipe.
Brief description
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is a preferred embodiment structural representation of the embodiment of the present invention.
Fig. 2 is that the B-B of Fig. 1 is to sectional structure schematic diagram.
In figure, label is schematically as follows：1-full skirt, 2-contact tube, 3-insulating barrier, 4-waterproof sealing band, 5-pyrocondensation seals pipe,
6-stress cone.
Detailed description of the invention
Embodiment
Waterproof big electric current second the third isolated bus structure of the present embodiment, as depicted in figs. 1 and 2, including：The contact tube of hollow is the 2nd,
It is wrapped in the insulating barrier outside contact tube 2 and the 3rd, be wrapped in the stress cone 6 of the outer interlude of insulating barrier 3；Between stress cone 6 and insulating barrier 3
Seam crossing be enclosed with waterproof sealing band 4 and pyrocondensation and seal pipe 5, stress cone 6 outer surface has full skirt 1 stress cone 6 and full skirt 1 is
Integral preform；Contact tube 2 is copper pipe or aluminium-alloy pipe.
Waterproof big electric current second the third isolated bus that the present embodiment provides, main body is copper pipe or aluminium-alloy pipe, and surface area is big, phase
To conventional rectangular bus, its conductive surface electric current distribution is uniform, and maximum amount determines electric current up to 6300-8000A.
Good insulation preformance：Waterproof big electric current second the third isolated bus uses closed shield insulation mode, and earthing of casing current potential is
Zero, bus surface electric field distribution is uniform, and electrical insulation properties is strong.Can directly pass through cable duct and cable interlayer.
Mechanical strength is high：Main body allowable stress is 4 times of rectangular bus bar, and the short circuit current that can bear is big, and mechanical strength is high,
Bus is made to support span maximum up to 8 meters.
Good heat dissipation, temperature rise are low：Waterproof big electric current second the third isolated bus is hollow conductor, and bus two ends have air vent, interior
Air channel, footpath energy self-assembling formation hot-air convection, radiating condition is compared well conventional bus bar and to be got well.
It is lost low：It is low that the profile of waterproof big electric current second the third isolated bus determines its surface skin effect coefficient, Kf 1,
AC resistance is little, thus the power loss of bus is little；The dielectric loss of cross-linked shielding isolated bus insulating barrier is less than 0.01.
Insulating materials heat-resistance coefficient is high：Big electric current second the third isolated bus has excellent electric property and chemical stability, is situated between
Matter loss is little, ageing-resistant, coordinate other insulating materials, service life >=30 year of product.
Resist electric vibration resistance strong：Dynamic stability result of the test shows, voltage 10kV, the copper pipe mother of rated current 4000A
Line, can bear 63kA（4s）Short-circuit current rush；Waterproof big electric current second the third isolated bus directly can be fixed on Steel Structure by it
Go up or on concrete support, cancel wall bushing and support insulator, there is stronger shock resistance.
Not by environmental disturbances, reliability is high：The every of waterproof big electric current second the third isolated bus is lock shield insulation mutually, internal
Produce without condensation, and eliminate extraneous moisture, the ground connection caused by dust and foreign object and phase fault, run and there is height
The reliability of degree.
Easy for installation, maintenance workload is few：Good water-proof effect, has the relative magnitude of interference, makes between terminal attachment with bus
Obtain and between terminal and bus insulation, do not have any space to install insulated enclosure pipe additional at annex two ends, seal pipe two ends and be wound around insulation
Band, band outer layer pyrocondensation seals pipe.
The present invention is not limited to the concrete technical scheme described in above-described embodiment, and in addition to the implementation, the present invention also may be used
There to be other embodiments.The technical scheme that all employing equivalents are formed, is the protection domain of application claims.
Claims (2)
1. waterproof big electric current second third isolated bus, it is characterised in that include：It the contact tube of hollow, is wrapped in described conduction
Insulating barrier outside pipe, the stress cone being wrapped in the outer stage casing of described insulating barrier；Seam between described stress cone and described insulating barrier
Place is enclosed with waterproof sealing band and pyrocondensation seals pipe, and described stress cone has full skirt.
2. waterproof big electric current second the third isolated bus according to claim 1, it is characterised in that：Described contact tube be copper pipe or
Aluminium-alloy pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758993.8A CN106448831A (en) | 2016-08-30 | 2016-08-30 | Waterproof large-current ethylene-propylene insulation bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758993.8A CN106448831A (en) | 2016-08-30 | 2016-08-30 | Waterproof large-current ethylene-propylene insulation bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448831A true CN106448831A (en) | 2017-02-22 |
Family
ID=58090173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610758993.8A Pending CN106448831A (en) | 2016-08-30 | 2016-08-30 | Waterproof large-current ethylene-propylene insulation bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448831A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1009002A1 (en) * | 1998-12-07 | 2000-06-14 | Soule Materiel Electrique | Medium and high voltage switching device |
| CN201838352U (en) * | 2010-09-16 | 2011-05-18 | 江苏威腾母线有限公司 | Full-shielding composite insulating tubular bus |
| CN203165559U (en) * | 2013-01-24 | 2013-08-28 | 镇江市江南矿山机电设备有限公司 | Insulation shielding tubular bus |
| CN104392801A (en) * | 2014-11-07 | 2015-03-04 | 湖北兴和电力新材料股份有限公司 | Novel pressingly wrapping type insulation tubular busbar and manufacturing method thereof |
| CN205158974U (en) * | 2015-11-10 | 2016-04-13 | 江苏士林电气设备有限公司 | Three -layer is second crowded third of ten heavenly stems high voltage insulation pipe generating line altogether |
-
2016
- 2016-08-30 CN CN201610758993.8A patent/CN106448831A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1009002A1 (en) * | 1998-12-07 | 2000-06-14 | Soule Materiel Electrique | Medium and high voltage switching device |
| CN201838352U (en) * | 2010-09-16 | 2011-05-18 | 江苏威腾母线有限公司 | Full-shielding composite insulating tubular bus |
| CN203165559U (en) * | 2013-01-24 | 2013-08-28 | 镇江市江南矿山机电设备有限公司 | Insulation shielding tubular bus |
| CN104392801A (en) * | 2014-11-07 | 2015-03-04 | 湖北兴和电力新材料股份有限公司 | Novel pressingly wrapping type insulation tubular busbar and manufacturing method thereof |
| CN205158974U (en) * | 2015-11-10 | 2016-04-13 | 江苏士林电气设备有限公司 | Three -layer is second crowded third of ten heavenly stems high voltage insulation pipe generating line altogether |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |