CN107452439A - A kind of compound insulation sleeve high voltage bus and its manufacture method - Google Patents
A kind of compound insulation sleeve high voltage bus and its manufacture method Download PDFInfo
- Publication number
- CN107452439A CN107452439A CN201710564384.3A CN201710564384A CN107452439A CN 107452439 A CN107452439 A CN 107452439A CN 201710564384 A CN201710564384 A CN 201710564384A CN 107452439 A CN107452439 A CN 107452439A
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- Prior art keywords
- compound
- high voltage
- conductor
- insulating sleeve
- sleeve
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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
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Bodies (AREA)
Abstract
The invention discloses a kind of compound insulation sleeve high voltage bus, including three conductors, every conductor is in compound insulating sleeve, packed layer is filled between conductor and compound insulating sleeve, three compound insulating sleeves equipped with conductor carry out lateral separation using multigroup composite fixture and are fixedly connected, the invention also discloses the manufacture method of compound insulation sleeve high voltage bus, prefabricated first compound insulating sleeve and composite fixture；Then three-phase conductor split-phase is inserted in compound insulating sleeve；Then the gap between every phase compound insulation sleeve tube end and conductor is blocked with fluid sealant, filled；After finally waiting three-phase packed layer to be fully cured, fixed compound insulating sleeve is installed using multigroup composite fixture, the problem of bus insulation temperature classification that the present invention solves normal temperature and pressure pouring technology present in prior art can only achieve B levels, and the bus production cycle is longer.
Description
Technical field
The invention belongs to high voltage power distribution technical field, and in particular to a kind of compound insulation sleeve high voltage bus, the present invention also relate to
A kind of and manufacture method of compound insulation sleeve high voltage bus.
Background technology
Full-insulating high-voltage bus due to phase insulation apart from it is short, floor space is small, current-carrying capacity is big, degree of protection is high, with
Widely applied in electric transformer station and large factories and mines enterprises large-current high-voltage field of power distribution.Isolated bus is according to insulating materials class
Type divides, and can be divided into the class product of thermoplastic insulation and heat cured insulation type etc. two.Wherein, heat cured insulation bus is old due to insulating
Change the characteristics such as long lifespan, mechanical strength height, field of power distribution, which has, out of doors is more widely applied prospect.
Its insulation processing of existing heat cured insulation bus is mainly normal pressure casting technique, i.e., bus is at ambient pressure directly by liquid
State aathermoset resin system is cast in the mould for being provided with conductor, is stripped to obtain product after resin normal temperature cure.By
In using normal temperature and pressure pouring technology, bus insulation temperature classification can only achieve B levels, and the bus production cycle is longer.Also, its is exhausted
Edge layer internal flaw rate and air bubble content are difficult to control.
The content of the invention
It is an object of the invention to provide a kind of compound insulation sleeve high voltage bus, it is normal to solve normal temperature present in prior art
The problem of bus insulation temperature classification of pressure pouring technology can only achieve B levels, and the bus production cycle is longer.
It is a further object of the present invention to provide a kind of manufacture method of compound insulation sleeve high voltage bus.
First technical scheme of the present invention is a kind of compound insulation sleeve high voltage bus, including three conductors, every
Conductor is filled with packed layer in compound insulating sleeve between conductor and compound insulating sleeve, three compound equipped with conductor
Insulating sleeve carries out lateral separation using multigroup composite fixture and is fixedly connected.
The characteristics of the first technical scheme that the present invention uses, also resides in,
Packed layer is conductive, heat-conducting polymer material.
Compound insulating sleeve and composite fixture are using pultrusion, molding or the manufacture of vacuum-latexed technique.
Compound insulating sleeve is high temperature bisphenol A type epoxy resin, and thickness is 6~14mm.
Composite fixture uses the two panels up and down that forms of SMC process stempressing epoxy resin, epoxy thickness be 15~25mm,
Bus axial width is 35~45mm, and two panels insulate composite fixture using made of nylon, lucite, polytetrafluoroethylene (PTFE) up and down
Screw mandrel and bolt are fixed.
Fixture fixed intervals between composite fixture are 490~510mm.
Second technical scheme of the present invention is a kind of manufacture method of compound insulation sleeve high voltage bus, specifically to press
Implement according to following steps：
Step 1, the compound insulating sleeve and composite fixture for distinguishing prefabricated different cross section shape according to the specification of conductor first；
When step 2, bus assembling, three-phase conductor split-phase is inserted in compound insulating sleeve；
Step 3, the gap between every phase compound insulation sleeve tube end and conductor blocked with fluid sealant；
Step 4, after the fluid sealant in step 3 is fully cured, by the heat conduction prepared in advance, conductive filler layer by insulation sleeve
Material hole injects compound insulating sleeve, and insulating sleeve to be composite stops injecting glue after filling；
After step 5, three-phase packed layer are fully cured, fixed compound insulating sleeve is installed using multigroup composite fixture.
The characteristics of the second technical scheme that the present invention uses, also resides in,
Packed layer is using heating or normal temperature cure in step 4.
The invention has the advantages that compound insulation sleeve high voltage bus, compared with prior art, insulation grade anti-corrosion are high,
Bus major insulation set uses the staged curing resin manufacture of high temperature, and solidification temperature is 90 DEG C/h → 110 DEG C/h → 120 DEG C/2h → 140
DEG C/h → 150 DEG C/h, temperature classification can reach F levels；
Insulation thickness is small, and radiating effect is high, due to being lacked using pressurization or the prefabricated insulation sleeve of negative pressure technique, insulating materials inside
Falling into less, air bubble content is low, and insulation thickness is small, wherein, 10kV bus insulations set thickness≤10mm, 35kV bus insulations thickness≤
25mm, also, bus insulation set is fixed using spacer insulator fixture, and airflow space is big, and bus heat dissipation characteristics significantly improve；
Busbar weight is light, the reduction of insulation sleeve thickness and use fixed intervals composite fixture installation three-phase bus, significantly
Bus integral insulation layer volume is reduced, significantly reduces bus overall weight, reduces bus transport, mounting cost and support
Quantity.
Brief description of the drawings
Fig. 1 is a kind of schematic cross-section of compound insulation sleeve high voltage bus of the present invention；
Fig. 2 is a kind of structural representation of compound insulation sleeve high voltage bus of the present invention.
In figure, 1. conductors, 2. compound insulating sleeves, 3. packed layers, 4. composite fixtures.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of compound insulation sleeve high voltage bus of the present invention, structure as shown in Figure 1 and Figure 2, including three conductors 1, every conductor
1 in compound insulating sleeve 2, and packed layer 3, three answering equipped with conductor 1 are filled between conductor 1 and compound insulating sleeve 2
Insulating sleeve 2 is closed to be fixedly connected using multigroup composite fixture 4 progress lateral separation.
Packed layer 3 is conductive, heat-conducting polymer material.
Compound insulating sleeve 2 and composite fixture 4 are using pultrusion, molding or the manufacture of vacuum-latexed technique.
Compound insulating sleeve 2 is high temperature bisphenol A type epoxy resin, and thickness is 6~14mm.
The two panels up and down that composite fixture 4 is formed using SMC process stempressing epoxy resin, epoxy thickness is 15~
25mm, bus axial width are 35~45mm, composite fixture about 4 two panels be made of nylon, lucite, polytetrafluoroethylene (PTFE)
Insulation screw mandrel and bolt fix.
Fixture fixed intervals between composite fixture 4 are 490~510mm.
A kind of manufacture method of compound insulation sleeve high voltage bus, specifically implements according to following steps：
Step 1, the compound insulating sleeve 2 of prefabricated different cross section shape and compound folder are distinguished according to the specification of conductor 1 first
Tool 4；
When step 2, bus assembling, the split-phase of three-phase conductor 1 is inserted in compound insulating sleeve 2；
Step 3, the gap between every end of phase compound insulating sleeve 2 and conductor 1 blocked with fluid sealant；
Step 4, after the fluid sealant in step 3 is fully cured, by the heat conduction prepared in advance, conductive filler layer 3 by insulating
Material hole injection compound insulating sleeve 2 is covered, packed layer 3 is stopped using heating or normal temperature cure, insulating sleeve 2 to be composite after filling
Only injecting glue；
After step 5, three-phase packed layer 3 are fully cured, fixed compound insulating sleeve 2 is installed using multigroup composite fixture 4.
A kind of compound insulation sleeve high voltage bus of the present invention, high voltage bus include three-phase conductor 1, and three-phase conductor 1 is distinguished parallel
It is arranged in inside three compound insulating sleeves 2.The one end of phase compound insulating sleeve 2 is provided with material hole, the other end is provided with out
Stomata.Space is filled using heat conduction, conductive embedding body between conductor 1 and compound insulating sleeve 2.Three-phase composite insulating sleeve
2 are connected using horizontal composite fixture 4 is integrated.When bus manufactures, first using works such as pultrusion, molding or vacuum-latexeds
Skill, and select hot setting resin, it is prefabricated to meet pressure-resistant demand and compound insulating sleeve 2 with material hole and venthole and multiple
Co-clip tool 4；Then three-phase conductor 1 is respectively implanted in three compound insulating sleeves 2, and seals each end of compound insulating sleeve 2；
After the completion of the end part seal of insulating sleeve 2 to be composite, packing material is injected by the material hole of compound insulating sleeve 2.Packed layer 3 is solidified into
After type, using prefabricated composite fixture 4 and insulation screw mandrel, bolt, and according to fixed axially spaced-apart, three phase isolated set is fixed as
One entirety, high voltage bus conductor 1, compound insulating sleeve 2 and packed layer 3 use split-phase separately installed and curing molding.
The typical process flow of the technique such as pultrusion, molding or vacuum-latexed is as follows in such scheme：
Pultrusion processes：Pultrusion molding process is the continuous traction by draw-gear, makes the non-twist glass fibers on creel
The reinforcing materials such as dimension rove, felt material impregnate through glue, after the heating mould with constant cross-section shape, solidify in a mold
Shaping, and realize a kind of automatic production process of continuous depanning.For the bus product of constant cross-section size, pultrusion work
Skill has obvious superiority.Firstly, since pultrude process is a kind of automatic continuous production technique, with other production technology phases
Than the production efficiency highest of pultrude process；Secondly, the utilization rate of raw materials of pultrusion product is also highest, typically can be 95%
More than.In addition, the cost of pultrusion product is relatively low, function admirable, steady quality, specious.
Compression molding method：Thermosetting resin compression molding is that a certain amount of resin (molding compound) is added to the mould of preheating
It is interior, heated, cure under pressure shaping bus product method.Its basic process is:A certain amount of heated water removal is graded pre- place
The molding compound of reason is put into the mould of preheating, and applying higher pressure makes molding compound fill die cavity.In certain pressure and temperature
Under molding compound is gradually solidified, then product is taken out out of mould, then carry out necessary secondary process produce bus insulation set,
Insulate the products such as screw mandrel, bolt.
Vacuum-latexed method：It is irrigated to obtain by referring to resin by the strength of vacuum using vacuum-latexed technique compound
Insulation sleeve, products obtained therefrom density is big (>=2.2), and air-tightness is high, and electrical insulation capability is excellent.This technique is needed according to different manufacturers
Classified with material.Added with nano abrasion-resistant material such as in high temperature resistant sizing material, the wearability of material is added, while is used high
Warm sizing material produces (>=200 DEG C), and under the conditions of 175 DEG C, 140MPa, property indices are almost without damping characteristic phenomenon；Using resistance to strong
Acid etching materials, it can make insulator can be long-term use of without being corroded in high temperature, strong acid medium (H2S, SO2).
Such scheme high solidification resin can be solidified using continuous high temperature or ladder hot setting, staged curing liter in this programme
Warm condition is 90 DEG C/h → 110 DEG C/h → 120 DEG C/2h → 140 DEG C/h → 150 DEG C/h.Prefabricated compound material insulation set and compound
Fixture and insulation screw mandrel, bolt product size can be carried out first according to the actually required size design of product before prefabricated to packing material
Surface modification treatment, dispersiveness of the filler in resin is improved, improves interface combination degree between resin and filler., will when prefabricated
Surface-modified processing packing material is proportionally added into resin, is being sequentially added curing agent, accelerator after dispersed, is being made
The features such as heat conduction, conduction are gluey.
Normal temperature cure fluid sealant is blocked using bicomponent epoxy resin AB glue to insulation sleeve in such scheme.Before use
The drying of insulation sleeve hermetic unit, cleaning are kept, takes A, B agent to mix by certain weight ratio, sealing work can be carried out after stirring
Industry, solidification process are normal temperature cure.
Experiment test shows, from 10mm thickness high temperature bisphenol A type epoxy resin pultrusions compound insulating sleeve 2,3*265*
12 copper conductors, the single group 3.25m that 20mm thickness, 40mm bus axial width S MC process stempressing epoxy resin composite fixture 4 make
Long compound insulation sleeve high voltage bus, its industrial frequency withstand voltage is up to 55kV, lightning impulse is pressure-resistant 95kV.In the fixed intervals of composite fixture 4
For 0.5m when, bus pass through 184kA dynamic currents, 63kA/4s heat-stable currents test.During 5kA current-carrying capacities, bus-bars conductor temperature
Liter≤45K, joint temperature rise≤50K, bus insulation temperature classification reach F levels, busbar weight≤130kg/m.
A kind of compound insulation sleeve high voltage bus of the present invention, to existing resin-cast Insulating A High-Voltage in structure and production technology
Bus is improved, using the prefabricated compound insulating sleeve of hot setting resin and dielectric holder, to improve the temperature classification of product,
Reduce operation temperature rise and the weight of product.
Claims (8)
1. a kind of compound insulation sleeve high voltage bus, it is characterised in that including three conductors (1), every conductor (1) is mounted in compound exhausted
In edge sleeve pipe (2), packed layer (3) is filled between conductor (1) and compound insulating sleeve (2), described three are equipped with conductor (1)
Compound insulating sleeve (2) carries out lateral separation using multigroup composite fixture (4) and is fixedly connected.
2. a kind of compound insulation sleeve high voltage bus according to claim 1, it is characterised in that the packed layer (3) is to lead
Electricity, heat-conducting polymer material.
A kind of 3. compound insulation sleeve high voltage bus according to claim 1, it is characterised in that the compound insulating sleeve
(2) and composite fixture (4) is using pultrusion, molding or the manufacture of vacuum-latexed technique.
4. according to a kind of any described compound insulation sleeve high voltage bus of claim 1 or 3, it is characterised in that described compound exhausted
Edge sleeve pipe (2) is high temperature bisphenol A type epoxy resin, and thickness is 6~14mm.
5. according to a kind of any described compound insulation sleeve high voltage bus of claim 1 or 3, it is characterised in that the compound folder
Tool (4) uses the two panels up and down that SMC process stempressing epoxy resin forms, and epoxy thickness is 15~25mm, bus is axially wide
Spend for 35~45mm, composite fixture (4) up and down two panels using insulation screw mandrel made of nylon, lucite, polytetrafluoroethylene (PTFE) and
Bolt is fixed.
6. according to a kind of any described compound insulation sleeve high voltage bus of claim 1 or 3, it is characterised in that the compound folder
The fixture fixed intervals having between (4) are 490~510mm.
7. a kind of manufacture method of compound insulation sleeve high voltage bus, it is characterised in that specifically implement according to following steps：
Step 1, the compound insulating sleeve (2) of prefabricated different cross section shape and compound folder are distinguished according to the specification of conductor (1) first
Have (4)；
When step 2, bus assembling, three-phase conductor (1) split-phase is inserted in compound insulating sleeve (2)；
Step 3, it will be blocked per the gap between phase compound insulating sleeve (2) end and conductor (1) with fluid sealant；
Step 4, after the fluid sealant in step 3 is fully cured, by the heat conduction prepared in advance, conductive filler layer (3) by insulation sleeve
Material hole injection compound insulating sleeve (2), insulating sleeve (2) to be composite stop injecting glue after filling；
After step 5, three-phase packed layer (3) are fully cured, fixed compound insulating sleeve (2) is installed using multigroup composite fixture (4).
A kind of 8. manufacture method of compound insulation sleeve high voltage bus according to claim 7, it is characterised in that the step
Packed layer (3) is using heating or normal temperature cure in 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564384.3A CN107452439A (en) | 2017-07-12 | 2017-07-12 | A kind of compound insulation sleeve high voltage bus and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564384.3A CN107452439A (en) | 2017-07-12 | 2017-07-12 | A kind of compound insulation sleeve high voltage bus and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107452439A true CN107452439A (en) | 2017-12-08 |
Family
ID=60488509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710564384.3A Pending CN107452439A (en) | 2017-07-12 | 2017-07-12 | A kind of compound insulation sleeve high voltage bus and its manufacture method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107452439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370433A (en) * | 2020-03-09 | 2021-09-10 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
| CN113764144A (en) * | 2019-12-16 | 2021-12-07 | 江苏沃能电气科技有限公司 | Hot pressing container for preparing composite insulating pipe |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2288537Y (en) * | 1996-09-28 | 1998-08-19 | 毛汉文 | Fire-resistant concentrated bus slot |
| CN201360127Y (en) * | 2009-02-23 | 2009-12-09 | 马纪财 | Combined type bus duct |
| CN102097771A (en) * | 2010-12-29 | 2011-06-15 | 辽宁锦榜电气有限公司 | Special bus duct for wind power |
| CN202333680U (en) * | 2011-11-21 | 2012-07-11 | 无锡市联合电控设备有限公司 | Detachable corner insulating sleeve for high-voltage bus |
| CN202758647U (en) * | 2012-04-13 | 2013-02-27 | 镇江华东电力设备制造厂 | Resin-casted insulating bus |
| CN203056498U (en) * | 2013-01-24 | 2013-07-10 | 镇江市江南矿山机电设备有限公司 | Joint insulation shielding structure of insulation tubular shielding busbar |
| CN203722170U (en) * | 2014-03-07 | 2014-07-16 | 解文 | High voltage bus |
| CN104269794A (en) * | 2014-09-12 | 2015-01-07 | 中国能源建设集团镇江华东电力设备制造厂 | All-insulation poured bus |
-
2017
- 2017-07-12 CN CN201710564384.3A patent/CN107452439A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2288537Y (en) * | 1996-09-28 | 1998-08-19 | 毛汉文 | Fire-resistant concentrated bus slot |
| CN201360127Y (en) * | 2009-02-23 | 2009-12-09 | 马纪财 | Combined type bus duct |
| CN102097771A (en) * | 2010-12-29 | 2011-06-15 | 辽宁锦榜电气有限公司 | Special bus duct for wind power |
| CN202333680U (en) * | 2011-11-21 | 2012-07-11 | 无锡市联合电控设备有限公司 | Detachable corner insulating sleeve for high-voltage bus |
| CN202758647U (en) * | 2012-04-13 | 2013-02-27 | 镇江华东电力设备制造厂 | Resin-casted insulating bus |
| CN203056498U (en) * | 2013-01-24 | 2013-07-10 | 镇江市江南矿山机电设备有限公司 | Joint insulation shielding structure of insulation tubular shielding busbar |
| CN203722170U (en) * | 2014-03-07 | 2014-07-16 | 解文 | High voltage bus |
| CN104269794A (en) * | 2014-09-12 | 2015-01-07 | 中国能源建设集团镇江华东电力设备制造厂 | All-insulation poured bus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764144A (en) * | 2019-12-16 | 2021-12-07 | 江苏沃能电气科技有限公司 | Hot pressing container for preparing composite insulating pipe |
| CN113370433A (en) * | 2020-03-09 | 2021-09-10 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
| CN113370433B (en) * | 2020-03-09 | 2023-04-18 | 邢台中车环保科技有限公司 | Method for producing cast nylon bar |
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