CN207268957U - A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure - Google Patents
A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure Download PDFInfo
- Publication number
- CN207268957U CN207268957U CN201720979967.8U CN201720979967U CN207268957U CN 207268957 U CN207268957 U CN 207268957U CN 201720979967 U CN201720979967 U CN 201720979967U CN 207268957 U CN207268957 U CN 207268957U
- Authority
- CN
- China
- Prior art keywords
- wire
- wound resistor
- external insulation
- bushing
- contact tube
- 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 - Fee Related
Links
- 238000009422 external insulation Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Insulators (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure, the upper and lower ends closing of external insulation, external insulation is split structure, centre is tightly connected by metal flange, the coaxial heart of contact tube is arranged in external insulation, and contact tube through whole casing and ensures to seal, and the coaxial heart of target is arranged on the outside of contact tube, and target one end is connected with metal flange, ground connection flanged joint is on external insulation；Several wire-wound resistors are sequentially connected and form wire-wound resistor unit, and the coaxial heart of wire-wound resistor unit is arranged on the inside of external insulation, and the upper end of wire-wound resistor unit is connected with contact tube, and lower end is connected with ground connection flange.The utility model is with short production cycle, light-weight, manufacture cost is low, bending strength is high, safe and reliable to operation and the advantages that significantly improve electric property；Wire-wound resistor unit in the utility model is uniformly distributed casing external insulation voltage and discharges the idle space electric charge of DC bushing generation in time, greatly improves the partial discharge performance of product.
Description
Technical field：
It the utility model is related to a kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure.
Background technology：
With the development of extra-high voltage direct-current transmission technology, to the bushing shell for transformer suitable for DC voltage, GIS lead collars
Pipe and wall bushing propose particular/special requirement.DC voltage also rises important on foot in addition to small pulse there are wavefront voltage
Square wave component.Therefore occurs the problem of a series of new in the design of DC bushing.At present, extra-high voltage direct-current transmission work is restricted
One of key equipment of the construction of journey autonomy-oriented and technological break-through is converter transformer valve side sleeve.Its main problem is converter transformer valve side set
Requirement and various test method of the pipe in system operation, including electric field distribution, the problems such as aerial sediment and dielectric loss and
Marked difference between direct current and alternating voltage etc..Because higher and higher to the running casing quality requirement of power transmission and transformation, in addition it is also necessary to
The quality of casing is continuously improved, could meet the security requirement of operation of power networks.China Power Grids have been enter into the alternating current-direct current complementary epoch,
And develop to extra-high voltage direction, therefore, the development of extra-high voltage casing and DC bushing and implement production domesticization task it is very urgent.
The content of the invention：
The utility model is to provide a kind of the straight of wire-wound resistor partial pressure to solve the above-mentioned problems of the prior art
Convertor transformer casing or wall bushing.
There is technical solution used by the utility model：The DC transformer bushing or set through walls of a kind of wire-wound resistor partial pressure
Pipe, including contact tube, target, ground connection flange, metal flange, external insulation and wire-wound resistor, up and down the two of the external insulation
End seal is closed, and external insulation is split structure, and centre is tightly connected by metal flange, and the coaxial heart of contact tube is arranged on external insulation
It is interior, and contact tube through whole casing and ensures to seal, the coaxial heart of target is arranged on the outside of contact tube, and target
One end is connected with metal flange, and ground connection flanged joint is on external insulation；Several wire-wound resistors are sequentially connected and form line around electricity
Unit is hindered, the coaxial heart of wire-wound resistor unit is arranged on the inner side of external insulation, and the upper end of wire-wound resistor unit is connected with contact tube,
Lower end is connected with ground connection flange.
Further, the wire-wound resistor includes upper flanges, wire-wound resistor silk, lower end flanges and insulation supporting cylinder, institute
The upper and lower ends for stating insulation supporting cylinder are connected with upper flanges and lower end flanges respectively, and wire-wound resistor silk is spirally wrapped around absolutely
On edge support tube.
Further, the outer wall of the insulation supporting cylinder is equipped with thread groove, and wire-wound resistor filament winding is arranged in the thread groove.
Further, filled with dielectric in the external insulation.
Further, the dielectric is SF6 gases.
The utility model has the advantages that：
1）The utility model is with short production cycle, light-weight, manufacture cost is low, bending strength is high, safe and reliable to operation and aobvious
Write the advantages that improving electric property；
2）Wire-wound resistor unit in the utility model is uniformly distributed casing external insulation voltage and discharges direct current in time
The idle space electric charge that casing produces, greatly improves the partial discharge performance of product.
Brief description of the drawings：
Fig. 1 is the utility model DC transformer bushing structure diagram；
Fig. 2 is the utility model wall bushing structure diagram；
Fig. 3 and Fig. 4 is resistance unit schematic diagram in the utility model.
1st, contact tube；2nd, target；3rd, it is grounded flange；4th, metal flange；5th, external insulation；6th, wire-wound resistor unit；
61st, upper flanges；62nd, wire-wound resistor silk；63rd, lower end flanges；64th, insulation supporting cylinder.
Embodiment：
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figures 1 to 4, the utility model a kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure,
Including contact tube 1, target 2, ground connection flange 3, metal flange 4, external insulation 5 and wire-wound resistor, the upper and lower ends of external insulation 5
Closing, external insulation 5 is split structure, and centre is tightly connected by metal flange 4, and 1 coaxial heart of contact tube is arranged on external insulation 5
It is interior, and the upper and lower both ends of contact tube 1 stretch in the outside of external insulation 5, and contact tube through whole casing and ensures to seal, middle electricity
2 coaxial heart of pole is arranged on the outside of contact tube 1, and 2 one end of target is connected with metal flange 4, and ground connection flange 3 is connected to outer
In insulation 5.Several wire-wound resistors are sequentially connected and form wire-wound resistor unit 6, and 6 coaxial heart of wire-wound resistor unit is arranged on outer
The inner side of insulation 5, and the upper end of wire-wound resistor unit 6 is connected with contact tube 1, lower end is connected with ground connection flange 3.
Wire-wound resistor in the utility model includes upper flanges 61, wire-wound resistor silk 62, lower end flanges 63 and insulation branch
Cylinder 64 is supportted, the upper and lower ends of insulation supporting cylinder 64 are connected with upper flanges 61 and lower end flanges 63 respectively, and wire-wound resistor silk 62 is in
Spiral wound is on insulation supporting cylinder 64.Pass through upper and lower hold-carrying between two adjacent wire-wound resistors in wire-wound resistor unit 6
The corresponding connection of orchid.
Thread groove is equipped with the outer wall of insulation supporting cylinder 64, wire-wound resistor silk 62 is set around in the thread groove.
SF6 gases are filled inside external insulation 5 as dielectric.
Wire-wound resistor unit 6 is uniformly distributed casing external insulation voltage and discharges harmful sky of DC bushing generation in time
Between electric charge, greatly improve the partial discharge performance of product.
Wall bushing both ends all use merogenesis external insulation structure, are partly set in bushing shell for transformer oil using mucilage binding integration
Meter, ensures sealed reliable.
External insulation 5 uses split structure, is compared with Traditional DC casing, and split structure has with short production cycle, again
Amount is light, manufacture cost is low, bending strength is high, safe and reliable to operation and the advantages that significantly improve electric property.
Contact tube 1 carries ballast current conductor as casing, and in high potential, target 2 and metal flange 4 connect, and pass through
Design calculates, and it is about high voltage half to make voltage at target.Ground connection flange 3 is connected with ground connection cylinder, in ground potential, is ensured
The piece electrical performance of casing.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, some improvement can also be made on the premise of the utility model principle is not departed from, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (5)
1. a kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure, it is characterised in that：Including contact tube（1）, in
Between electrode（2）, ground connection flange（3）, metal flange（4）, external insulation（5）And wire-wound resistor, the external insulation（5）Upper and lower ends
Closing, external insulation（5）For split structure, centre passes through metal flange（4）It is tightly connected, contact tube（1）Coaxial heart is arranged on
External insulation（5）It is interior, and contact tube through whole casing and ensures to seal, target（2）Coaxial heart is arranged on contact tube（1）'s
Outside, and target（2）One end and metal flange（4）It is connected, is grounded flange（3）It is connected to external insulation（5）On；Several lines
It is sequentially connected around resistance and forms wire-wound resistor unit（6）, wire-wound resistor unit（6）Coaxial heart is arranged on external insulation（5）It is interior
Side, and wire-wound resistor unit（6）Upper end and contact tube（1）It is connected, lower end and ground connection flange（3）It is connected.
2. the DC transformer bushing or wall bushing of wire-wound resistor partial pressure as claimed in claim 1, it is characterised in that：It is described
Wire-wound resistor includes upper flanges（61）, wire-wound resistor silk（62）, lower end flanges（63）And insulation supporting cylinder（64）, the insulation
Support tube（64）Upper and lower ends respectively with upper flanges（61）With lower end flanges（63）It is connected, wire-wound resistor silk（62）Helically
Shape is wrapped in insulation supporting cylinder（64）On.
3. the DC transformer bushing or wall bushing of wire-wound resistor partial pressure as claimed in claim 2, it is characterised in that：It is described
Insulation supporting cylinder（64）Outer wall be equipped with thread groove, wire-wound resistor silk（62）It is set around in the thread groove.
4. the DC transformer bushing or wall bushing of wire-wound resistor partial pressure as claimed in claim 1, it is characterised in that：It is described
External insulation（5）It is interior filled with dielectric.
5. the DC transformer bushing or wall bushing of wire-wound resistor partial pressure as claimed in claim 4, it is characterised in that：It is described
Dielectric is SF6 gases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720979967.8U CN207268957U (en) | 2017-08-08 | 2017-08-08 | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720979967.8U CN207268957U (en) | 2017-08-08 | 2017-08-08 | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268957U true CN207268957U (en) | 2018-04-24 |
Family
ID=61960218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720979967.8U Expired - Fee Related CN207268957U (en) | 2017-08-08 | 2017-08-08 | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342143A (en) * | 2017-08-08 | 2017-11-10 | 江苏智达高压电气有限公司 | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure |
| CN110661230A (en) * | 2019-07-11 | 2020-01-07 | 平高集团有限公司 | Conductive tube for high voltage equipment |
-
2017
- 2017-08-08 CN CN201720979967.8U patent/CN207268957U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342143A (en) * | 2017-08-08 | 2017-11-10 | 江苏智达高压电气有限公司 | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure |
| CN110661230A (en) * | 2019-07-11 | 2020-01-07 | 平高集团有限公司 | Conductive tube for high voltage equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201937220U (en) | High-voltage insulating bus connecting device | |
| CN207268957U (en) | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure | |
| CN203617118U (en) | Oil-immersed inverted current transformer | |
| CN101958190A (en) | Shielding and isolating voltage mutual inductor | |
| CN102231309A (en) | Extra-high voltage alternating current (AC)/direct current (DC) sleeve | |
| CN206610719U (en) | A kind of distribution transformer for simulating short circuit in winding state | |
| CN201237973Y (en) | Sulfur hexafluoride current mutual inductor with small-diameter casing tube | |
| CN204946704U (en) | Pot type current transformer | |
| CN203616435U (en) | On-site 220V SF6 gas test device | |
| CN107342143A (en) | A kind of DC transformer bushing or wall bushing of wire-wound resistor partial pressure | |
| CN201348901Y (en) | Insulating bushing of high-voltage power equipment | |
| CN206497147U (en) | A kind of multi-function electronic current-voltage transformer | |
| CN206505771U (en) | A kind of New insulated tube type bus | |
| CN207338045U (en) | A kind of resistance unit structure of shielding | |
| CN201773690U (en) | Hairpin type current transformer used for high-voltage direct current | |
| CN203812698U (en) | Resin insulation excitation-free voltage-regulation distribution transformer | |
| CN110517871B (en) | Internal middle and external three-shielding transformer | |
| CN204303515U (en) | With the dry type phase-shifting rectifier transformer of function of shielding insulating cylinder | |
| CN210378731U (en) | Internal, middle and external three-shielding transformer | |
| CN201674149U (en) | Inflatable ring network switch cabinet | |
| CN206236523U (en) | A kind of box switching station and oil-filled transformer 35kV gas-filling cabinet sleeve pipes | |
| CN206059148U (en) | A kind of inflated type high pressure current lifting device | |
| CN207268981U (en) | A kind of new structure gas-insulated transformer casing | |
| CN201340798Y (en) | Inverted high voltage large current transformer | |
| CN105390188A (en) | Insulated tubular busbar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |