CN105023644A - Novel tubular bus system - Google Patents

Novel tubular bus system Download PDF

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Publication number
CN105023644A
CN105023644A CN201510235177.4A CN201510235177A CN105023644A CN 105023644 A CN105023644 A CN 105023644A CN 201510235177 A CN201510235177 A CN 201510235177A CN 105023644 A CN105023644 A CN 105023644A
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CN
China
Prior art keywords
bus
main
core
screen
insulating
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Application number
CN201510235177.4A
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Chinese (zh)
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CN105023644B (en
Inventor
陈道华
马道平
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江苏士林电气设备有限公司
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Priority to CN201510235177.4A priority Critical patent/CN105023644B/en
Publication of CN105023644A publication Critical patent/CN105023644A/en
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Publication of CN105023644B publication Critical patent/CN105023644B/en

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Abstract

The invention relates to a novel tubular bus system comprising tubular buses and a connecting structure. Adjacent tubular buses are fixedly connected through the connecting structure. Each tubular bus comprises a wire core which is successively wrapped in an insulated layer, a shielding layer, a heat-shrinkable sheath, and an insulated sheath. The wire core is in a regular octagonal shape and is provided with a plurality of heat-dissipating channels. A polytetrafluoroethylene layer wraps the wire core and is used as the insulated layer. The insulated layer is in a cylindrical shape and wrapped in the shielding layer in a regular decagonal shape. The shielding layer is an organosilicon flame-retardant heat-conducting silicone rubber insulating coating and is wrapped in the heat-shrinkable sheath in a cylindrical shape. The heat-shrinkable sheath is wrapped in the insulated sheath in a regular dodecagonal shape. The novel tubular bus system is good in toughness, insulating performance, and electrical performance.

Description

A kind of novel cast bus-bar system
Technical field
The invention belongs to High-Voltage Electrical Appliances field, be specifically related to a kind of novel cast bus-bar system.
Background technology
Along with the development of domestic economy, the power load of each transformer station is surged thereupon, system running current is increasing, load is more and more concentrated, the main transformer capacity of transformer station is also increasing, and in the past in engineering more adopt the connected mode of multi-disc rectangle busbar or directly use cable connection, these well need not adapt to the working method of big current (more than 3000A), cause that supplementary load loss are large, CURRENT DISTRIBUTION is uneven simultaneously, skin effect coefficient increase cause current capacity to decline and the phenomenon such as contact heating more and more obvious.
Domestic bus, through technique improvement, makes insulating barrier mostly all adopt polytetrafluoroethylene to hold.The shortcoming of isolated bus is exactly mainly the middle insulation processing connected, the insulation of single pipe mother is all carry out before dispatching from the factory, transition joint is exactly for female the docking with single pipe mother of the single pipe in scene, the insulation processing of transition joint is done again after having docked, but the humidity of surrounding environment and temperature all can not meet, even manual hold time may bring impurity into, the electrical insulation properties of pipe mother is reduced greatly.
Summary of the invention
Technical problem to be solved by this invention provides a kind of New pipe for above drawback typebus-bar system, good toughness, good insulation preformance, good electric property.
For solving the problems of the technologies described above, technical scheme of the present invention is:
One novel cast bus-bar system, comprise tube type bus and syndeton, adjacent tube type bus is fixedly connected with by syndeton, described tube type bus comprises core, the outer coated insulation layer successively of core, screen, sheath shrinkable sleeve and insulating sleeve, described core is octagon structure, some heat dissipation channels are provided with in core, described core outer cladding one deck polytetrafluoroethylene is as insulating barrier, described insulating barrier is cylindrical structural, the screen of insulating barrier outer cladding one deck regualr decagon, described screen is organic silicon flame-retardant heat-conducting silicon rubber insulating coating, the sheath shrinkable sleeve of described screen outer cladding one deck cylindrical structural, the insulating sleeve of described sheath shrinkable sleeve outer cladding one deck dodecagon,
Described connecting elements, comprise connecting elements main body, described connecting elements main body is the cylindrical structural of hollow, metallic conductor is provided with in connecting elements main body, metallic conductor will be divided into two bus lock chambers in connecting elements main body, the chamber wall progressive additive from inside to outside of described bus lock chamber, make tapered structure in bus lock chamber, described metallic conductor two ends are respectively provided with a splicing ear, described connecting elements main body is axially arranged with some pressing grooves, and connecting elements main body two ends engage a stainless steel annulus for sealing respectively.
Above-mentioned novel cast bus-bar system, wherein, described insulating sleeve forms by silastic elastomer is high temperature vulcanized.
Above-mentioned novel cast bus-bar system, wherein, the thickness of described insulating barrier, screen, sheath shrinkable sleeve and insulating sleeve successively decreases successively.
Beneficial effect of the present invention is:
Buses of insulation tubes is hollow conductor, and surface area is large, and conductive surface electric current distribution is even.Therefore, isolated bus is particularly suitable for the large loop of operating current.
The allowable stress of buses of insulation tubes is 4 times of rectangular bus bar, and the short circuit current that can bear is large, and mechanical strength is high, makes bus support span and strengthens.When 50KA short circuit current, the unsettled span of Φ 100 × 5mm isolated bus reaches 9 meters, bus bar cupport is utilized to support, the span of bus can reach 13 meters, because bus span is large, directly can enter hyperbaric chamber to be connected with indoor current limiting reactor or 10 KV switch cabinets, decrease corresponding post insulator, bus gold utensil and civil engineering framework basis.
Buses of insulation tubes adopts closed shield insulation mode, and earthing of casing current potential is zero, because electric shield has: a. makes Electric Field Distribution even; B. controlling potential and restriction electric field; C. avoid producing partial discharge at insulating surface; D. conduct leakage current and charging current; E. carry out the characteristic such as protecting to the touch voltage of danger, therefore the insulation tubular bus Electric Field Distribution of this band shielding is even, electrical insulation properties is strong.
Structure of the present invention is simple, easy for installation, only need in insertion bus lock chamber relative for tube type bus, splicing ear on metallic conductor is directly contacted with the core of tube type bus, and mechanical strength is high, is connected and more fits between conductor with connector, conduct electricity very well, in use can effectively avoid causing damage to bus, more safe and reliable, add useful life.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present invention.
Fig. 2 is tube type bus cutaway view of the present invention.
Fig. 3 is connecting elements structure chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
One novel cast bus-bar system, comprise tube type bus 1 and syndeton 2, adjacent tube type bus 1 is fixedly connected with by syndeton 2, described tube type bus 1 comprises core 11, the outer coated insulation layer 12 successively of core 11, screen 13, sheath shrinkable sleeve 14 and insulating sleeve 15, described insulating barrier 12, screen 13, the thickness of sheath shrinkable sleeve 14 and insulating sleeve 15 successively decreases successively, described core 11 is octagon structure, some heat dissipation channels 16 are provided with in core 11, described core 11 outer cladding one deck polytetrafluoroethylene is as insulating barrier 12, described insulating barrier 12 is cylindrical structural, the screen 13 of insulating barrier 12 outer cladding one deck regualr decagon, described screen 13 is organic silicon flame-retardant heat-conducting silicon rubber insulating coating, the sheath shrinkable sleeve 14 of described screen 13 outer cladding one deck cylindrical structural, the insulating sleeve 15 of described sheath shrinkable sleeve 14 outer cladding one deck dodecagon, described insulating sleeve 15 forms by silastic elastomer is high temperature vulcanized,
Described connecting elements 2 comprises connecting elements main body 21, described connecting elements main body 21 is the cylindrical structural of hollow, metallic conductor 22 is provided with in connecting elements main body 21, metallic conductor 22 will be divided into two bus lock chambers 23 in connecting elements main body 21, chamber wall 24 progressive additive from inside to outside of described bus lock chamber 23, make tapered structure in bus lock chamber 23, described metallic conductor 22 two ends are respectively provided with a splicing ear 25.
Described connecting elements main body 21 is axially arranged with some pressing grooves 26, and connecting elements main body 21 two ends engage a stainless steel annulus 27 for sealing respectively.
Buses of insulation tubes is hollow conductor, and surface area is large, and conductive surface electric current distribution is even.Therefore, isolated bus is particularly suitable for the large loop of operating current.
The allowable stress of buses of insulation tubes is 4 times of rectangular bus bar, and the short circuit current that can bear is large, and mechanical strength is high, makes bus support span and strengthens.When 50KA short circuit current, the unsettled span of Φ 100 × 5mm isolated bus reaches 9 meters, bus bar cupport is utilized to support, the span of bus can reach 13 meters, because bus span is large, directly can enter hyperbaric chamber to be connected with indoor current limiting reactor or 10 KV switch cabinets, decrease corresponding post insulator, bus gold utensil and civil engineering framework basis.
Buses of insulation tubes adopts closed shield insulation mode, and earthing of casing current potential is zero, because electric shield has: a. makes Electric Field Distribution even; B. controlling potential and restriction electric field; C. avoid producing partial discharge at insulating surface; D. conduct leakage current and charging current; E. carry out the characteristic such as protecting to the touch voltage of danger, therefore the insulation tubular bus Electric Field Distribution of this band shielding is even, electrical insulation properties is strong.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments, and therefore, the present invention is not by the restriction of the present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.

Claims (3)

1. a novel cast bus-bar system, it is characterized by, comprise tube type bus and syndeton, adjacent tube type bus is fixedly connected with by syndeton, described tube type bus comprises core, the outer coated insulation layer successively of core, screen, sheath shrinkable sleeve and insulating sleeve, described core is octagon structure, some heat dissipation channels are provided with in core, described core outer cladding one deck polytetrafluoroethylene is as insulating barrier, described insulating barrier is cylindrical structural, the screen of insulating barrier outer cladding one deck regualr decagon, described screen is organic silicon flame-retardant heat-conducting silicon rubber insulating coating, the sheath shrinkable sleeve of described screen outer cladding one deck cylindrical structural, the insulating sleeve of described sheath shrinkable sleeve outer cladding one deck dodecagon,
Described connecting elements, comprise connecting elements main body, described connecting elements main body is the cylindrical structural of hollow, metallic conductor is provided with in connecting elements main body, metallic conductor will be divided into two bus lock chambers in connecting elements main body, the chamber wall progressive additive from inside to outside of described bus lock chamber, make tapered structure in bus lock chamber, described metallic conductor two ends are respectively provided with a splicing ear, described connecting elements main body is axially arranged with some pressing grooves, and connecting elements main body two ends engage a stainless steel annulus for sealing respectively.
2. novel cast bus-bar system as claimed in claim 1, is characterized by, and described insulating sleeve forms by silastic elastomer is high temperature vulcanized.
3. novel cast bus-bar system as claimed in claim 1, it is characterized by, the thickness of described insulating barrier, screen, sheath shrinkable sleeve and insulating sleeve successively decreases successively.
CN201510235177.4A 2015-05-11 2015-05-11 Tubular bus system CN105023644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510235177.4A CN105023644B (en) 2015-05-11 2015-05-11 Tubular bus system

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Application Number Priority Date Filing Date Title
CN201510235177.4A CN105023644B (en) 2015-05-11 2015-05-11 Tubular bus system

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CN105023644A true CN105023644A (en) 2015-11-04
CN105023644B CN105023644B (en) 2017-03-22

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107017595A (en) * 2016-01-28 2017-08-04 黄通 Radiating refractory busbar in a kind of
CN107680731A (en) * 2017-10-10 2018-02-09 江苏众众热能科技有限公司 A kind of wind power pipe bus-bar system
CN107731412A (en) * 2017-10-10 2018-02-23 江苏众众热能科技有限公司 A kind of full-shield isolated bus
CN109754952A (en) * 2018-12-29 2019-05-14 江苏沃能电气科技有限公司 A kind of insulating tube type busbar production method
CN111641056A (en) * 2020-05-18 2020-09-08 山东中泰阳光电气科技有限公司 Tubular bus bar connecting device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201112588Y (en) * 2007-10-22 2008-09-10 湖北兴和电力新材料股份有限公司 Combined insulation pipe busbar intermediate connector
CN201364758Y (en) * 2009-01-16 2009-12-16 深圳市惠程电气股份有限公司 10KV metal tube bus insulated and shielded by vulcanized silicon rubber
CN201397889Y (en) * 2009-04-23 2010-02-03 湖北兴和电力新材料股份有限公司 Middle connector of pretightening insulation bus
CN201417642Y (en) * 2009-06-19 2010-03-03 中科英华高技术股份有限公司 Flame-retardant insulating shielding tube-shaped bus
CN201601233U (en) * 2009-12-31 2010-10-06 深圳市惠程电气股份有限公司 Tubular bus-bar straight joint
CN202217795U (en) * 2011-08-16 2012-05-09 深圳市惠程电气股份有限公司 Intermediate head of compound insulation tube bus
CN202601868U (en) * 2012-02-28 2012-12-12 陈斌 Intermediate connection device for tubular bus
RU132924U1 (en) * 2013-02-20 2013-09-27 Закрытое акционерное общество "Группа компаний "Электрощит"-ТМ Самара" DEVICE FOR WELDED CONTACT CONNECTION OF PARTS OF CURRENT CONDUCTIVE TIRE OF TUBULAR CROSS SECTION
CN103618272A (en) * 2013-09-12 2014-03-05 上海振大电器成套有限公司 Middle connection structure of tubular busbar
CN203553834U (en) * 2013-10-17 2014-04-16 向荣集团有限公司 An air-type bus groove

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201112588Y (en) * 2007-10-22 2008-09-10 湖北兴和电力新材料股份有限公司 Combined insulation pipe busbar intermediate connector
CN201364758Y (en) * 2009-01-16 2009-12-16 深圳市惠程电气股份有限公司 10KV metal tube bus insulated and shielded by vulcanized silicon rubber
CN201397889Y (en) * 2009-04-23 2010-02-03 湖北兴和电力新材料股份有限公司 Middle connector of pretightening insulation bus
CN201417642Y (en) * 2009-06-19 2010-03-03 中科英华高技术股份有限公司 Flame-retardant insulating shielding tube-shaped bus
CN201601233U (en) * 2009-12-31 2010-10-06 深圳市惠程电气股份有限公司 Tubular bus-bar straight joint
CN202217795U (en) * 2011-08-16 2012-05-09 深圳市惠程电气股份有限公司 Intermediate head of compound insulation tube bus
CN202601868U (en) * 2012-02-28 2012-12-12 陈斌 Intermediate connection device for tubular bus
RU132924U1 (en) * 2013-02-20 2013-09-27 Закрытое акционерное общество "Группа компаний "Электрощит"-ТМ Самара" DEVICE FOR WELDED CONTACT CONNECTION OF PARTS OF CURRENT CONDUCTIVE TIRE OF TUBULAR CROSS SECTION
CN103618272A (en) * 2013-09-12 2014-03-05 上海振大电器成套有限公司 Middle connection structure of tubular busbar
CN203553834U (en) * 2013-10-17 2014-04-16 向荣集团有限公司 An air-type bus groove

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107017595A (en) * 2016-01-28 2017-08-04 黄通 Radiating refractory busbar in a kind of
CN107017595B (en) * 2016-01-28 2019-04-02 黄通 Radiate refractory busbar in a kind of
CN107680731A (en) * 2017-10-10 2018-02-09 江苏众众热能科技有限公司 A kind of wind power pipe bus-bar system
CN107731412A (en) * 2017-10-10 2018-02-23 江苏众众热能科技有限公司 A kind of full-shield isolated bus
CN109754952A (en) * 2018-12-29 2019-05-14 江苏沃能电气科技有限公司 A kind of insulating tube type busbar production method
CN111641056A (en) * 2020-05-18 2020-09-08 山东中泰阳光电气科技有限公司 Tubular bus bar connecting device

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