CN201146328Y - New type insulated bus connecting pipe - Google Patents
New type insulated bus connecting pipe Download PDFInfo
- Publication number
- CN201146328Y CN201146328Y CNU2007203053237U CN200720305323U CN201146328Y CN 201146328 Y CN201146328 Y CN 201146328Y CN U2007203053237 U CNU2007203053237 U CN U2007203053237U CN 200720305323 U CN200720305323 U CN 200720305323U CN 201146328 Y CN201146328 Y CN 201146328Y
- Authority
- CN
- China
- Prior art keywords
- insulated
- insulation
- tube
- insulated tube
- capacitance plate
- 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.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 11
- 150000002739 metals Chemical class 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 125000003700 epoxy group Chemical group 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract 3
- 238000002788 crimping Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000005030 aluminium foil Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 230000037250 Clearance Effects 0.000 description 1
- 229940099259 Vaseline Drugs 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
Abstract
The utility model discloses an insulation generatrix connection pipe, being one component of an insulation generatrix, which is used for connecting an insulation layer and a sleeve layer of two sections of generatrix, belonging to the field of high voltage apparatus. The insulation generatrix connection pipe leads a plurality of capacitance screens which lengthen gradually from inside to outside to be arranged inside the insulation layer of the connection pipe, the capacitance screen in the innermost layer is led out from the inner wall of the connection pipe by an equipotential line and is fixedly connected with a conducting component; the capacitance screen in the outmost layer is led out by an earth line and is connected with a flange and the insulation generatrix connection pipe is filled with insulation medium which is not trickling, therefore, not only simplifying the structure, but also overcoming the shortcoming of the possibility of discharging of sparks caused by the elastic crimping of the conducting components and the inner capacitance screen of the connection pipe by using spring strips and overcoming the shortcoming of partial discharging in an air gap between the insulation pipes caused by the innermost capacitance screen adhibitting to the inner wall of the insulation pipe. The insulation generatrix connection pipe of the utility model can also prevent the interior of the connection pipe from moistening, prevent the insulation surface from discharging and reduce the size of the connection pipe.
Description
Technical field
Isolated bus is used for the transmission of transformer station's electric current, is that the contact tube by the interconnective tape insulation of plurality of sections constitutes.The isolated bus tube connector is the parts that are used for the contact tube connection of adjacent two sections tape insulations, is the part of isolated bus, also can be used for cable mid head.This invention belongs to the High-Voltage Electrical Appliances field.
Background technology
Along with the increasing of main transformer capacity in the transformer station, the electric current of transformer low voltage side bus also constantly increases, and can reach several kiloamperes.Usually adopt the rectangle copper of insulating element support or the built on stilts bus that aluminium conductor is formed.This bus over the ground or phase insulation be air, need certain clearance to guarantee dielectric strength.Therefore need take bigger space,, cause that transformer has a power failure, and causes very big loss also easily because toy or support component defective insulation cause phase fault.Defectives such as rectangular conductor itself also exists owing to electric current excessive, and kelvin effect is serious, and utilance is low, therefore the tubulose isolated bus arises at the historic moment in recent years.
Usually, isolated bus is that contact tube by the interconnective tape insulation of plurality of sections couples together by collapsible joint and isolated bus tube connector and is fixed on the parts of ground connection.The carrying object of the contact tube of tape insulation is the metal catheter that places insulating barrier inside, inserts number of metal and all press screen to improve the end electric field in its both ends insulating barrier, and outermost layer is a protecting pipe.The termination of two sections metal catheters connects with collapsible joint, so as to adjust construction and the worker that causes of expanding with heat and contract with cold poor.The tubulose insulating element of the junction of the contact tube of two sections tape insulations is known as the isolated bus tube connector, it covers the end of the contact tube of expansion joint and two sections tape insulations, playing the effect that connects insulating barrier and outer jacket, is important components very in the isolated bus.The isolated bus tube connector is provided with several concentrically ringed metal capacitance screens that extends gradually from inside to outside, interior screen should be connected with conducting position, make itself and conducting position equipotential, the outermost screen is drawn with the ground connection position from protecting pipe by lead-in wire and is connected, all presses the effect of playing uniform electric field of shielding.
Use the user of isolated bus more and more at present both at home and abroad, for example Shanghai Power Company, Anhui electric power company, Guangdong Electric Power company etc.There are companies such as MWB, MGC in manufacturer at present.But its interior screen all is to be installed on the inwall of insulated tube by copper pipe or aluminum pipe, by spring leaf and copper pipe or the aluminum pipe sliding contact that is contained in metal catheter and expansion joint connecting portion, makes itself and conductor equipotential.There is following defective in this structure: 1. service time of a specified duration, spring pressure weakens, and causes loose contact easily, burns out contact point thereby produce electric spark, further causes insulated tube to damage; 2. be installed between the copper pipe of insulated tube inwall or aluminum pipe and the insulated tube and unavoidably can produce air gap, cause partial discharge, further cause insulation damages; 3. for guaranteeing that creeping discharge does not take place isolated bus tube connector inwall, need enough insulated lengths, caused isolated bus tube connector size bigger.
Summary of the invention:
Purpose of the present invention is intended to overcome the deficiency of prior art, a kind of novel insulated main lead tube connector is provided, its interior screen is arranged in the middle of the insulating barrier of insulated tube, draws and fixedlys connected with the connecting portion of conducting metal conduit and expansion joint from the insulated tube inwall with equipotential line.Cause discharge over the ground for preventing that equipotential line from relaxing, equipotential line is made the telescopic plain conductor that can change overall dimension.For reducing the size of tube connector, and guarantee that insulated tube is inner dry, can connect the not dielectric of drip of casing pack at isolated bus.
According to a kind of novel insulated main lead tube connector provided by the invention, comprise insulated tube 1, closely be arranged on the outer protecting pipe 2 of insulated tube, be arranged on the flange 3 at insulated tube and protecting pipe both ends, it is characterized in that the capacitance plate 4 that several the concentrically ringed metals that progressively extend from the inside to the outside or semiconductive material are made is fixed in the insulated tube 1, the capacitance plate 5 of innermost layer firmly is connected with equipotential line 6, and draw by insulated tube 1 inwall, outermost layer capacitance plate 7 firmly is connected with earth connection 8, and draw by protecting pipe 2 outer walls, be connected with flange 3 again.
Described insulated tube 1 is successively to be twined by epoxy glass fiber to make, and the capacitance plate 4 that several concentrically ringed metals or semiconductive material are made is separately fixed in the insulating barrier.
Described insulated tube 1 also can be to make by successively holding organic insulation film outside the rigid insulation bushing pipe 10, and the capacitance plate 4 that several concentrically ringed metals or semiconductive material are made is separately fixed in the organic insulation film.
The described equipotential line 6 that firmly is connected with innermost layer capacitance plate 5 that drawn by insulated tube 1 inwall is the plain conductor that can stretch.
Described a kind of novel insulated main lead tube connector, comprise insulated tube 1, closely be arranged on the outer protecting pipe 2 of insulated tube, be arranged on the flange 3 at insulated tube and protecting pipe both ends, it is characterized in that the capacitance plate 4 that several the concentrically ringed metals that progressively extend from the inside to the outside or semiconductive material are made is fixed in the insulated tube 1, the capacitance plate 5 of innermost layer firmly is connected with equipotential line 6, and draw by insulated tube 1 inwall, outermost layer capacitance plate 7 firmly is connected with earth connection 8, and draw by protecting pipe 2 outer walls, be connected with flange 3 again, in the space of insulated tube, be full of the not dielectric 9 of drip.
Compared with the prior art, isolated bus tube connector of the present invention has the following advantages:
(1) will connect conducting position and insulated tube the spring leaf of the sliding contact of the copper pipe of interior screen or aluminum pipe change fixing cord (equipotential line) into and be connected, prevent because loose contact causes sparkover.
(2) will be installed in the copper pipe of insulated tube inwall or aluminum pipe as the innermost layer capacitance plate and change into and be fixed on insulated tube inside, prevent because interior screen causes partial discharge with air gap between insulating.
(3) insulated tube inside is full of the not dielectric of drip, not only can prevent the insulated tube internal wetted but also can reduce the size of insulated tube.
(4) the isolated bus tube connector can be used as the connection that cable mid head is used for two sections cables.
Description of drawings:
Fig. 1 illustrates the scheme of installation of isolated bus tube connector and isolated bus contact tube and expansion joint.Wherein the isolated bus tube connector 11, isolated bus contact tube 12, isolated bus contact tube wire clamp 13, collapsible joint 14, equipotential line 6, earth connection 8, mounting flange 15, mounting flange earth connection 16.
Fig. 2 also illustrates the scheme of installation of isolated bus tube connector and isolated bus contact tube and expansion joint, and the isolated bus inner chamber is full of the not dielectric 9 of drip.
Fig. 3 illustrates the structural representation of isolated bus tube connector 11, and insulated tube 1 is wherein successively twined by epoxy glass fiber to be made.
Fig. 4 illustrates the structural representation of another kind of isolated bus tube connector 11, and insulated tube 1 is wherein made by successively holding organic insulation film outside the hard system insulation bushing pipe 10.
Embodiment:
Example 1, have epoxy glass fiber and successively twine the isolated bus tube connector of making insulated tube
Referring to Fig. 3, described another kind of novel insulated main lead tube connector, comprise insulated tube 1, (for example closely be arranged on the outer protecting pipe 2 of insulated tube, the pyrocondensation protecting pipe), the flange 3 that is arranged on insulated tube and protecting pipe both ends (for example, the aluminium flange), it is characterized in that: several concentrically ringed metals that progressively extend (for example from the inside to the outside, aluminium foil) or the capacitance plate 4 made of semiconductive material (for example semi-conductive tape) be fixed in the insulated tube, the capacitance plate 5 of innermost layer firmly is connected with the equipotential line 6 (for example copper conductor) of conduction, and draw by insulated tube 1 inwall, outermost layer capacitance plate 7 is drawn earth connection 8 by the protecting pipe outer wall, and is connected with flange 3, in the space of insulated tube, be full of the not dielectric 9 of drip (for example, vaseline).
Referring to Fig. 3, described insulated tube 1 is successively to be twined by epoxy glass fiber (glass fiber of epoxy resin dipping) to make, the capacitance plate 4 that several concentrically ringed metals (for example, aluminium foil) or semiconductive material (for example semi-conductive tape) are made is separately fixed in the insulating barrier.
Referring to Fig. 3, the described equipotential line that firmly is connected with the innermost layer capacitance plate that drawn by insulated tube 1 inwall is the plain conductor that can stretch (for example, coiled spring cast not only can elongate but also can shorten copper cash).
Example 2, have by the outer isolated bus tube connector that successively holds the insulated tube that organic insulation film makes of hard system insulation bushing pipe 10.
Referring to Fig. 4, described insulated tube 1 by rigid insulation pipe 10 (for example is, thin epoxy resin pipe) (for example successively holds organic insulation film outside, polytetrafluoroethylene film) makes, several concentrically ringed metals (for example, aluminium foil) or the capacitance plate 4 made of semiconductive material (for example semi-conductive tape) be separately fixed in the organic insulation film, other parts are identical with embodiment 1.
Certainly, be not limited only to the foregoing description, the content of claim and specification all belongs to protected row.
Claims (5)
1, a kind of novel insulated main lead tube connector, comprise insulated tube (1), closely be arranged on the outer protecting pipe (2) of insulated tube, be arranged on the flange (3) at insulated tube and protecting pipe both ends, it is characterized in that: progressively several concentrically ringed metals of lengthening or the capacitance plate (4) made of semiconductive material are fixed in the insulated tube (1) from the inside to the outside, the capacitance plate of innermost layer (5) firmly is connected with equipotential line (6), and draw by insulated tube (1) inwall, outermost layer capacitance plate (7) firmly is connected with earth connection (8), and draw by protecting pipe (2) outer wall, be connected with flange (3) again.
2, a kind of novel insulated main lead tube connector as claimed in claim 1, it is characterized in that: insulated tube (1) is successively to be twined by epoxy glass fiber to make, and the capacitance plate (4) that several concentrically ringed metals or semiconductive material are made is separately fixed in the epoxy glass fibre insulating layer.
3, a kind of novel insulated main lead tube connector as claimed in claim 1, it is characterized in that: insulated tube (1) is to make by successively holding organic insulation film outside the rigid insulation bushing pipe (10), and the capacitance plate (4) that several concentrically ringed metals or semiconductive material are made is separately fixed in the organic insulation film.
4, a kind of novel insulated main lead tube connector as claimed in claim 1 is characterized in that: the equipotential line (6) that firmly is connected with innermost layer capacitance plate (5) of being drawn by insulated tube (1) inwall is telescopic plain conductor.
5, a kind of novel insulated main lead tube connector, comprise insulated tube (1), closely be arranged on the outer protecting pipe (2) of insulated tube, be arranged on the flange (3) at insulated tube and protecting pipe both ends, it is characterized in that: progressively several concentrically ringed metals of lengthening or the capacitance plate (4) made of semiconductive material are fixed in the insulated tube from the inside to the outside, the capacitance plate of innermost layer (5) firmly is connected with the equipotential line (6) of conduction, and draw by insulated tube (1) inwall, outermost layer capacitance plate (7) firmly is connected with earth connection (8), and draw by protecting pipe (2) outer wall, be connected with flange (3) again, in the space of insulated tube, be full of the not dielectric of drip (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203053237U CN201146328Y (en) | 2007-11-30 | 2007-11-30 | New type insulated bus connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203053237U CN201146328Y (en) | 2007-11-30 | 2007-11-30 | New type insulated bus connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146328Y true CN201146328Y (en) | 2008-11-05 |
Family
ID=40083214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203053237U Expired - Lifetime CN201146328Y (en) | 2007-11-30 | 2007-11-30 | New type insulated bus connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201146328Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280165A (en) * | 2010-06-13 | 2011-12-14 | 仝志红 | Capacitive type isolated bus with two shielded ends |
| CN102412450A (en) * | 2010-09-17 | 2012-04-11 | 仝志红 | Novel dry-type capacitance insulation outgoing line sleeve |
| CN102568659A (en) * | 2010-12-18 | 2012-07-11 | 仝志红 | Externally shielded type capacitance insulated outlet bus |
| CN103050957A (en) * | 2012-12-27 | 2013-04-17 | 李景禄 | Multifunctional combined secondary cable lightening protection and equipotential protection method and device |
| CN106654908A (en) * | 2017-01-24 | 2017-05-10 | 宁海县雁苍山电力设备厂有限公司 | Sparkproof low-contact resistance power distribution box |
-
2007
- 2007-11-30 CN CNU2007203053237U patent/CN201146328Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280165A (en) * | 2010-06-13 | 2011-12-14 | 仝志红 | Capacitive type isolated bus with two shielded ends |
| CN102280165B (en) * | 2010-06-13 | 2013-06-12 | 王日新 | Capacitive type isolated bus with two shielded ends |
| CN102412450A (en) * | 2010-09-17 | 2012-04-11 | 仝志红 | Novel dry-type capacitance insulation outgoing line sleeve |
| CN102568659A (en) * | 2010-12-18 | 2012-07-11 | 仝志红 | Externally shielded type capacitance insulated outlet bus |
| CN102568659B (en) * | 2010-12-18 | 2013-11-13 | 王日新 | Externally shielded type capacitance insulated outlet bus |
| CN103050957A (en) * | 2012-12-27 | 2013-04-17 | 李景禄 | Multifunctional combined secondary cable lightening protection and equipotential protection method and device |
| CN103050957B (en) * | 2012-12-27 | 2015-11-11 | 李景禄 | Multifunction combined secondary cable lightning protection and equipotential guard method and device |
| CN106654908A (en) * | 2017-01-24 | 2017-05-10 | 宁海县雁苍山电力设备厂有限公司 | Sparkproof low-contact resistance power distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Guo Jing Document name: Notification that Application Deemed not to be Proposed |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING RUIHENG XINYUAN INVESTMENT CO., LTD. Free format text: FORMER OWNER: WANG RUZHANG Effective date: 20140422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140422 Address after: 101400 Jingwei Industrial Zone, North Housing Town, Huairou District, Beijing Patentee after: BEIJING RUIHENG XINYUAN INVESTMENT CO., LTD. Address before: 101400 Beijing city Huairou District Li Hu Xin ranks No. 2 Building 4 unit 402 room Patentee before: Wang Ruzhang |
|
| DD01 | Delivery of document by public notice |
Addressee: BEIJING RUIHENG XINYUAN INVESTMENT CO., LTD. Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |