CN207217259U - A kind of transformer passes in and out two-wire sleeve pipe - Google Patents
A kind of transformer passes in and out two-wire sleeve pipe Download PDFInfo
- Publication number
- CN207217259U CN207217259U CN201721036440.8U CN201721036440U CN207217259U CN 207217259 U CN207217259 U CN 207217259U CN 201721036440 U CN201721036440 U CN 201721036440U CN 207217259 U CN207217259 U CN 207217259U
- Authority
- CN
- China
- Prior art keywords
- conducting rod
- cover plate
- contact shoe
- sleeve pipe
- insulation crust
- 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.)
- Withdrawn - After Issue
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A kind of transformer passes in and out two-wire sleeve pipe, with insulation crust, its upper and lower side is connected to cover plate and the flange cylinder being connected with transformer flange, two conducting rods are provided with insulation crust, the lower end of every conducting rod is connected with contact shoe, two conducting rods are nested or side by side, the upper end of one conducting rod is connected with cover plate, Second terminal plate is fixed with cover plate, the upper end of another conducting rod is stretched out from the through hole of cover plate, the first end daughter board by cover plate support is connected with its external part, first end daughter board insulate with cover plate, filled with SF6 pressed gas in insulation crust.The extraction of the utility model into and out of line is placed in same sleeve pipe, compact-sized, simple, and inside pipe casing can ensure that dielectric level and machining yield is high, improve cost performance filled with SF6 gases.
Description
Technical field
It the utility model is related to transformer disengaging two-wire sleeve pipe.
Background technology
At present, when bushing shell for transformer has tolerance HVDC requirements, using epoxy resin impregnated paper sleeve pipe, this sleeve pipe is using exhausted
Edge paper and aluminium foil turn to capacitance core, then are formed epoxy resin casting is carried out outside capacitance core.Passed in and out needing single coil
When line is drawn, into and out of each sleeve pipe of extraction of line, the coil on transformer is more, then sleeve pipe is more.Epoxy resin impregnated paper set
Pipe can be mixed into air when carrying out epoxy resin casting in epoxy layer, and so as to form bubble, bubble has shadow to insulating properties
Ring, so the yield rate of this structures shape epoxy resin impregnated paper sleeve pipe is relatively low, the price of sleeve pipe is also just higher.Asphalt mixtures modified by epoxy resin
The ability for the DC break down voltage that fat impregnated paper sleeve pipe is born is relatively low, if requiring to bear higher DC break down voltage, epoxy resin impregnated paper set
The diameter dimension of pipe can accordingly increase a lot.
The content of the invention
The purpose of this utility model is to propose that the extraction of a kind of single coil into and out of line is placed in same sleeve pipe and tied
The transformer disengaging two-wire sleeve pipe that structure is compact, cost performance is improved.
To reach above-mentioned purpose, the utility model takes the first following technical scheme：The utility model has insulation outer
Shell, insulation crust upper and lower side are connected to cover plate and the flange cylinder being connected with transformer flange, and cover plate is provided with through hole, absolutely
Interior conducting rod in edge shell provided with coaxial inner conductor and cover the hollow outer conducting rod outside interior conducting rod, inside and outside conducting rod it
Between insulate, the upper end of outer conducting rod is connected with cover plate, is fixed with Second terminal plate on cover plate, and the upper end of interior conducting rod is from cover plate
Through hole in stretch out, be connected with the first end daughter board by cover plate support on its external part, first end daughter board insulate with cover plate, leads outside
The lower end of electric pole is connected with the first contact shoe, is connected between outer conducting rod and the first contact shoe by some first fingertips, interior conduction
Outer conducting rod is stretched out in the lower end of bar, and its lower end is connected with the second contact shoe, by some the between interior conducting rod and the second contact shoe
Two fingertips connect, and the second contact shoe is in the first contact shoe and mutually insulated, filled with SF6 pressure gas in the inner chamber of insulation crust
Body.
The insulating washer around interior conducting rod, the upper and lower end of insulating washer are provided between the first end daughter board and cover plate
Sealing ring is respectively embedded with face.
The bottom of second contact shoe is provided with the platform extended to surrounding, and the bottom of the first contact shoe is closed in the second contact
On the platform of son, the second contact shoe and the first contact shoe, which are harmonious between face, is provided with insulation sleeve.
Gap is provided between the inside and outside conducting rod, SF6 gases enter in gap.
First fingertip is fixed on the inwall of the first contact shoe or is fixed on the outer wall of outer conducting rod；Described
Two fingertips are fixed on the inwall of the second contact shoe or are fixed on the outer wall of interior conducting rod.
The insulation crust is that glass fibre reinforced plastic cylinder wraps up in silastic material or is insulator in vitro.
To reach above-mentioned purpose, the utility model takes following second of technical scheme：The utility model has insulation outer
Shell, the upper and lower end of insulation crust are connected to cover plate and the flange cylinder being connected with transformer flange, are provided with insulation crust flat
Capable the first conducting rod and the second conducting rod, cover plate are provided with through hole corresponding with the first conducting rod, the upper end of the first conducting rod
Stretched out by the through hole on cover plate, the first end daughter board by cover plate support, first end daughter board and cover plate are connected with its external part
Insulation, the upper end of the second conducting rod are connected with cover plate, and Second terminal plate, the lower end connection of the first conducting rod are fixed with cover plate
There is contact shoe, the lower end of the second conducting rod is connected with contact shoe, and first, second conducting rod is respectively by some fingertips between contact shoe
Connect, filled with SF6 pressed gas in the inner chamber of insulation crust.
The insulating washer around interior conducting rod, the upper and lower end of insulating washer are provided between the first end daughter board and cover plate
Sealing ring is respectively embedded with face.
The fingertip is fixed on the inwall of contact shoe or is fixed on the outer wall of conducting rod.
The insulation crust is that glass fibre reinforced plastic cylinder wraps up in silastic material or is insulator in vitro.
The utility model has following good effect：1st, the extraction of the utility model into and out of line is placed in same sleeve pipe, is adopted
Son is touched with two conducting rods and two, a conducting rod and one touch son and coordinated, and form double guide rod, double tactile minor structures, particularly
Extraction into and out of line is enclosed on the outside of another conducting rod using a conducting rod, and a contact shoe covers on another contact shoe
Outside, so compact-sized, simple, provide and facilitates for assembling.2nd, due to SF6 gas of the cannula cavity filled with certain pressure,
It can ensure that sleeve pipe meets the dielectric level requirement such as lightning impulse, switching impulse, HVAC, HVDC.Again due to using metal material
Matter conducting rod, easy to process, high yield rate, so as to reduce production cost, improve cost performance.
Brief description of the drawings
Fig. 1 is the top view of embodiment 1.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is the enlarged drawing of Fig. 2 bottom, the main connection reflected between first, second contact shoe, inside and outside conducting rod
Figure.
Fig. 4 is another connected mode of fingertip.
Fig. 5 is the enlarged drawing on Fig. 2 tops, the connection figure mainly reflected between cover plate, inside and outside conducting rod.
Fig. 6 is the view of embodiment 2
Mark in accompanying drawing is as follows：
1. first end daughter board, 2. Second terminal plates, 3. cover plates, 4. grading rings, 5. insulation crusts, conducting rod in 6., outside 7.
Conducting rod, 8. flange cylinders, 9. insulating washers, 10. first contact shoes, 11. second contact shoes, 12. first guide rings, 13. first
Fingertip, 14. second guide rings, 15. insulation sleeves, 16. sealing rings, 17. second fingertips, 18. first conducting rods, 19. second lead
Electric pole, 20. contact shoes, 21. fingertips.
Embodiment
Embodiment 1
See Fig. 1 to Fig. 5, the utility model has insulation crust 5, and the insulation crust 5 of the present embodiment uses fiber reinforced plastic barrel
It is outer to wrap up in silastic material or be insulator.The upper and lower end of insulation crust 5 is connected to cover plate 3 and flange cylinder 8, and cover plate 3 is provided with
Through hole.In the present embodiment, flange cylinder 8 is both ends open and cylinder.
Interior conducting rod 6 is provided with insulation crust 5 and it is hollow outer conducting rod 7, inside and outside conducting rod is metal material,
Outer 7 sets of conducting rod has gap between the outside of interior conducting rod 6 and the coaxial inner conductor of inside and outside conducting rod 6, inside and outside conducting rod 6,7
D.The upper end of outer conducting rod 7 is connected with cover plate 3, and Second terminal plate 2 is fixed with cover plate 3.The upper end of interior conducting rod 6 is from cover plate
Stretched out in 3 through hole, the first end daughter board 1 supported by cover plate 3 is connected with its external part, between first end daughter board 1 and cover plate 3
Provided with the insulating washer 9 around interior conducting rod 6, sealing ring 16 is respectively embedded with the upper and lower end face of insulating washer 9, so as to ensure
Seal and insulate between one terminal board 1 and cover plate 3.In the present embodiment, outer conducting rod 7, cover plate 3, Second terminal plate 2 are one
, interior conducting rod 6 and first end daughter board 1 are integral.Here one can be integrally welded.
The lower end of outer conducting rod 7 is connected with the first contact shoe 10, and outer conducting rod 7 is stretched out in the lower end of interior conducting rod 6, and is stretching
Go out on end and be connected with the second contact shoe 11.Second contact shoe 11 is in the first contact shoe 10, and two contact shoes are with center line and stretch
Go out flange cylinder 8.The bottom of second contact shoe 11 is provided with the platform 11-1 extended to surrounding, and the bottom of the first contact shoe 10 is closed the
On the platform 11-1 of two contact shoes 10, the second contact shoe 11 and the first contact shoe 10, which are harmonious between face, is provided with insulation sleeve 15, makes
Insulated between two contact shoes 11 and the first contact shoe 10.By some first fingertips 13 between the outer contact shoe 10 of conducting rod 7 and first
Connection；Connected between the interior contact shoe 11 of conducting rod 6 and second by some second fingertips 17.First fingertip 13 is fixed on
On the inwall of one contact shoe 10（See Fig. 3）Or it is fixed on the outer wall of outer conducting rod 7（With reference to figure 4）, second fingertip 17 or
It is fixed on the inwall of the second contact shoe 11（See Fig. 3）Or it is fixed on the outer wall of interior conducting rod 6（See Fig. 4）.
Be provided with first contact shoe 10 and in the top of its fingertip 13 can by the first guide ring 12 of outer conducting rod 7, the
The second guide ring 14 of interior conducting rod 6 can be passed through by being provided with two contact shoes 11 and in the top of its fingertip 15.
Sleeve pipe is connected by flange cylinder 8 with transformer flange sealing, and the lead of transformer connects with corresponding contact shoe.Insulation
Filled with SF6 pressed gas in the inner chamber of shell 5, pressed gas can be entered in interior, conducting rod 6,7 clearance D, ensured interior, conductive
Insulation between bar.
The enclosing cover periphery of insulation crust 5 is provided with grading ring 4.
Embodiment 2
See Fig. 5 and Fig. 6, embodiment 2 has an insulation crust 5, the insulation crust 5 or wraps up in silicon rubber in vitro for glass fibre reinforced plastic cylinder
Material is insulator.The upper and lower end of insulation crust 5 is connected to cover plate 3 and flange cylinder 8, is provided with insulation crust 5 parallel
First conducting rod 18 and the second conducting rod 19, cover plate 3 be provided with 18 corresponding through hole of the first conducting rod, the aperture of through hole is more than
The bar footpath of first conducting rod 18, the upper end of the first conducting rod 18 are stretched out by the through hole on cover plate 3, are connected with its external part by covering
The first end daughter board 1 that plate 3 supports, first end daughter board 1 insulate with cover plate 3, are provided between first end daughter board 1 and cover plate 3 around interior
The insulating washer 9 of conducting rod 6, be respectively embedded with sealing ring 16 on the upper and lower end face of insulating washer 9, so as to ensure first end daughter board 1 with
Seal and insulate between cover plate 3.The upper end of second conducting rod 19 is connected with cover plate 3, and Second terminal plate 2 is fixed with cover plate 3.
The lower end of first conducting rod 18 is connected with contact shoe 20, and the lower end of the second conducting rod 19 is equally connected with contact shoe 20, and first,
Two conducting rods are respectively connected between contact shoe 20 by some fingertips 21, and fingertip 21 can be fixed on the inwall of contact shoe 20, are touched
Referring to 21 can also be fixed on the outer wall of conducting rod.Two contact shoes 20 stretch out flange cylinder 8.Sleeve pipe passes through flange cylinder 8 and transformation
Device flange seal connects, and the lead of transformer connects with corresponding contact shoe.Filled with SF6 pressure gas in the inner chamber S of insulation crust 5
Body.
The enclosing cover periphery of insulation crust 5 is provided with grading ring 4.
Claims (10)
1. a kind of transformer passes in and out two-wire sleeve pipe, there is insulation crust（5）, it is characterised in that：Insulation crust（5）Upper and lower side is distinguished
It is connected with cover plate（3）And the flange cylinder being connected with transformer flange（8）, cover plate（3）It is provided with through hole, insulation crust（5）It is interior
Interior conducting rod provided with coaxial inner conductor（6）With cover in interior conducting rod（6）Outside hollow outer conducting rod（7）, inside and outside conducting rod it
Between insulate, outer conducting rod（7）Upper end and cover plate（3）It is connected, cover plate（3）On be fixed with Second terminal plate（2）, interior conducting rod
（6）Upper end from cover plate（3）Through hole in stretch out, be connected with its external part by cover plate（3）The first end daughter board of support（1）,
First end daughter board（1）With cover plate（3）Insulation, outer conducting rod（7）Lower end be connected with the first contact shoe（10）, outer conducting rod（7）
With the first contact shoe（10）Between by some first fingertips（13）Connection, interior conducting rod（6）Lower end stretch out outer conducting rod（7）,
Its lower end is connected with the second contact shoe（11）, interior conducting rod（6）With the second contact shoe（11）Between by some second fingertips（17）
Connection, the second contact shoe（11）In the first contact shoe（10）Interior and mutually insulated, insulation crust（5）Inner chamber（S）In filled with
SF6 pressed gas.
2. transformer according to claim 1 passes in and out two-wire sleeve pipe, it is characterised in that：First end daughter board（1）With cover plate（3）
Between be provided with surround interior conducting rod（6）Insulating washer（9）, insulating washer（9）Upper and lower end face on be respectively embedded with sealing ring
（16）.
3. transformer according to claim 1 passes in and out two-wire sleeve pipe, it is characterised in that：Second contact shoe（11）Bottom set
The platform of oriented surrounding extension（11-1）, the first contact shoe（10）Bottom close in the second contact shoe（11）Platform（11-1）
On, the second contact shoe（11）With the first contact shoe（10）It is harmonious between face and is provided with insulation sleeve（15）.
4. transformer according to claim 1 passes in and out two-wire sleeve pipe, it is characterised in that：The inside and outside conducting rod（6、7）It
Between be provided with gap（D）, SF6 gases enter gap（D）It is interior.
5. transformer according to claim 1 passes in and out two-wire sleeve pipe, it is characterised in that：First fingertip（13）It is or fixed
In the first contact shoe（10）Inwall on or be fixed on outer conducting rod（7）Outer wall on；Second fingertip（17）Or it is fixed on
Second contact shoe（11）Inwall on or be fixed on interior conducting rod（6）Outer wall on.
6. transformer according to claim 1 passes in and out two-wire sleeve pipe, it is characterised in that：The insulation crust（5）Or it is glass
Glass steel cylinder wraps up in silastic material outside or is insulator.
7. a kind of transformer passes in and out two-wire sleeve pipe, there is insulation crust（5）, it is characterised in that：Insulation crust（5）Upper and lower end
It is connected to cover plate（3）The flange cylinder being connected with transformer flange（8）, insulation crust（5）It is interior to be led provided with parallel first
Electric pole（18）With the second conducting rod（19）, cover plate（3）It is provided with and the first conducting rod（18）Corresponding through hole, the first conducting rod
（18）Upper end pass through cover plate（3）On through hole stretch out, be connected with by cover plate on its external part（3）The first end daughter board of support
（1）, first end daughter board（1）With cover plate（3）Insulation, the second conducting rod（19）Upper end and cover plate（3）It is connected, cover plate（3）On
It is fixed with Second terminal plate（2）, the first conducting rod（17）Lower end be connected with contact shoe（20）, the second conducting rod（19）Lower end
It is connected with contact shoe（20）, first, second conducting rod is respectively and contact shoe（20）Between by some fingertips（21）Connection, insulation crust
（5）Inner chamber（S）In filled with SF6 pressed gas.
8. transformer according to claim 7 passes in and out two-wire sleeve pipe, it is characterised in that：First end daughter board（1）With cover plate（3）
Between be provided with surround interior conducting rod（6）Insulating washer（9）, insulating washer（9）Upper and lower end face on be respectively embedded with sealing ring
（16）.
9. transformer according to claim 7 passes in and out two-wire sleeve pipe, it is characterised in that：The fingertip（21）Or it is fixed on and connects
Touch son（20）Inwall on or be fixed on the outer wall of conducting rod.
10. transformer according to claim 7 passes in and out two-wire sleeve pipe, it is characterised in that：The insulation crust（5）Or it is glass
Glass steel cylinder wraps up in silastic material outside or is insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721036440.8U CN207217259U (en) | 2017-08-17 | 2017-08-17 | A kind of transformer passes in and out two-wire sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721036440.8U CN207217259U (en) | 2017-08-17 | 2017-08-17 | A kind of transformer passes in and out two-wire sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207217259U true CN207217259U (en) | 2018-04-10 |
Family
ID=61815620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721036440.8U Withdrawn - After Issue CN207217259U (en) | 2017-08-17 | 2017-08-17 | A kind of transformer passes in and out two-wire sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207217259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424797A (en) * | 2017-08-17 | 2017-12-01 | 常州东芝变压器有限公司 | Transformer passes in and out two-wire sleeve pipe |
| WO2021115966A1 (en) * | 2019-12-12 | 2021-06-17 | Abb Power Grids Switzerland Ag | Medium frequency transformer with parallel windings |
-
2017
- 2017-08-17 CN CN201721036440.8U patent/CN207217259U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424797A (en) * | 2017-08-17 | 2017-12-01 | 常州东芝变压器有限公司 | Transformer passes in and out two-wire sleeve pipe |
| CN107424797B (en) * | 2017-08-17 | 2023-09-15 | 常州东芝变压器有限公司 | Double-wire sleeve for transformer |
| WO2021115966A1 (en) * | 2019-12-12 | 2021-06-17 | Abb Power Grids Switzerland Ag | Medium frequency transformer with parallel windings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180410 Effective date of abandoning: 20230915 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180410 Effective date of abandoning: 20230915 |