CN201017753Y - 35 kv and three-phase dry type hollow current-limiting reactor - Google Patents
35 kv and three-phase dry type hollow current-limiting reactor Download PDFInfo
- Publication number
- CN201017753Y CN201017753Y CNU2007200109796U CN200720010979U CN201017753Y CN 201017753 Y CN201017753 Y CN 201017753Y CN U2007200109796 U CNU2007200109796 U CN U2007200109796U CN 200720010979 U CN200720010979 U CN 200720010979U CN 201017753 Y CN201017753 Y CN 201017753Y
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- Prior art keywords
- dry type
- type hollow
- insulation
- phase dry
- air channel
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Abstract
The utility model relates to a 35 kilovolt three-phase dry type air core current limiting reactor, which comprises coils, an insulation cylinder, an upper bearing plate and a lower bearing plate. The utility model is characterized in that the coils of the reactor adopt a copper twisted wire consisting of a plurality of thin copper wires to be wound on the insulation cylinder, an insulating layer is wrapped outside the copper twisted wire, and each layer of coil is coated with epoxide resin firming agents; F grade insulation cold drawing air channel strips are arranged between each layer of coil, the upper ends and the lower ends of the air channel strips are provided with end insulators, and the thicknesses of the end insulators are the same as the diameter of the lead wire; the air channel strips are riveted on the end insulators and the bearing plates by threading insulation threading strips through the air channel strips and the end insulators. The utility model has the advantages of simple and reasonable structure, strong anti-short circuit current ability, good electric performance, small volume, light weight, low loss, and low noise.
Description
Technical field
The utility model relates to a kind of dry type hollow current-limiting reactor.
Background technology
Dry type hollow current-limiting reactor has only coil, there is not iron core, magnetic circuit is that the non-magnetizer magnetic resistance is very big, inductance value is very little, do not have saturated phenomenon, inductance value is a constant, because the good electrical characteristic of dry type hollow current-limiting reactor, being widely used in power engineering and each field of modern electrician, is the indispensable visual plant of electrical engineering.
Traditional dry type hollow current-limiting reactor has three kinds of patterns.One, be with concrete with the reactor winding that winds, water and dress up firm integral body and be referred to as cement reactor, this cement current limiting reactor volume is big, weight greatly, too heavy.Its two, be the wrapped reactor that is referred to as with modified line footpath (little line footpath) aluminum steel coiling, the easy oxidation of this current limiting reactor aluminum steel, bad mechanical strength, the life-span is low.Its three, with pressing plate and pull bar the reactor winding tension that winds is referred to as the clamping reactor, this current limiting reactor, humidity resistance is poor, supplementary load loss are big.More than three kinds of reactors in electric power system, move and all do not reach optimum efficiency.
The utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of 35 kv 3-phase dry type hollow current-limiting reactors, and this reactor adopts brand new, its loss is little, the mechanical strength height, and limiting short-circuit current is big, insulation against ground level height, protective capacities is strong, and is easy to use.
For achieving the above object, the utility model adopts following technical scheme:
35 kv 3-phase dry type hollow current-limiting reactors, comprise coil, insulating cylinder, supporting plate up and down, it is characterized in that: the copper stranded conductor that the coil of reactor adopts many fine copper wires to form is wound on the insulating cylinder, and the copper stranded conductor outside is surrounded by insulating barrier, and every layer line circle outside all scribbles epoxy curing agent; Be provided with F class F insulation cold-drawn air channel bar between every layer line circle, its upper and lower end parts is provided with the end insulation, and the end insulation thickness is identical with diameter of wire; Wear bar by insulation and pass air channel bar and end insulation, air channel bar riveting is being held on insulation and the supporting plate.
Insulating cylinder adopts moulding epoxy fibreglass cloth tube, and its monolateral thickness is δ=3mm.
The insulating barrier of copper stranded conductor outside adopts polyvinyl chloride, and its monolateral thickness is δ=3mm.
The air channel bar is provided with ventilation ducts.
Hot-forming expoxy glass silk fabric board is adopted in the end insulation.
Supporting plate adopts the nonmagnetic steel supporting plate.
The outer netted glass fiber of multilayer that adopts of reactor winding does not have the binding of latitude band.
Reactor winding top is provided with flashing board.
The reactor winding bottom is supported with a plurality of porcelain insulators.
The beneficial effects of the utility model are:
1) adopts the conductor of many copper stranded conductors as coil, its objective is and prevent that air core reactor operation under big electric current high voltage from producing highfield, make the lead generation kelvin effect of coil, thereby reduce the supplementary load loss of hollow current-limiting reactor, reach energy-conservation purpose, the copper stranded conductor dielectric voltage withstand is more than 3000 volts/layers.
2) coil of reactor is directly on the epoxy fibreglass cloth tube of moulding, every layer line circle is provided with the smooth air channel of F insulation cold-drawn bar, make coil air smoothness, the heat radiation of lead two sides, there is not dead corner, improve the heat-sinking capability of reactor winding greatly, make reactor current in wire density reach Δ=2.5a/mm
2More than, coil temperature rise is no more than 65 ℃.
3) reactor winding, every layer of end is provided with the end insulation of hot-forming expoxy glass silk fabric board, and the end insulation thickness is identical with diameter of wire, and density reaches 50mm.In winding process, all use insulation to wear the bar riveting in the end insulation especially, every layer conductor all firmly is pressed under the bar of air channel, add every layer line circle lead and all be coated with epoxy curing agent, every layer conductor is all firmly sticked together bar both sides, air channel.Thereby improve hollow current-limiting reactor Short Circuit withstand current capacity greatly, even reactor winding short circuit under 25 times of nominal current conditions, the electric power that short circuit current produces can not make the hollow current-limiting reactor winding wire be subjected to displacement yet, and causes damage.
4) the reactor skin does not have the latitude band around the netted glass fiber of multilayer, and the lead of coil is tied up effectively, and the current limiting reactor coil is by vacuumize, the vacuum pressed dipping lacquer makes the reactor lead, and insulating part all firmly sticks together, and the coil outer surface scribbles anti-ultraviolet, protection against the tide, the curing agent of anti-embrittlement.
5) the reactor winding bottom is being supported with a plurality of porcelain insulators, and the porcelain insulator bending stress reaches 10,000 newton.Reactor winding and porcelain insulator, flashing board reasonably connect together, thereby make reactor become a firmly integral body, improve the insulation against ground level and the stability of current limiting reactor greatly.
In sum, the utlity model has that simple and reasonable, Short Circuit withstand current capacity is strong, good electric property, volume is little, in light weight, loss is little, low noise advantage.
Description of drawings
Fig. 1 is the structural representation of 35 kilovolts of dry type hollow current-limiting reactors.
Fig. 2 is the constitutional diagram of 35 kv 3-phase dry type hollow current-limiting reactors.
Embodiment
See Fig. 1,35 kv 3-phase dry type hollow current-limiting reactors, comprise coil, epoxy fibreglass cloth tube 5, nonmagnetic steel supporting plate 8 up and down, the copper stranded conductor 2 that the coil of reactor adopts many fine copper wires to form is wound on the epoxy fibreglass cloth tube 5, and epoxy fibreglass cloth barrel thickness is monolateral to be δ=3mm.That copper stranded conductor 2 outsides are surrounded by is high temperature resistant, corrosion-resistant, waterproof, moistureproof polyvinyl chloride insulation layer, and every layer line circle outside all scribbles epoxy curing agent 6; Be provided with F class F insulation cold-drawn air channel bar 3 between every layer line circle, the air channel bar is provided with ventilation ducts, makes coil air smoothness, does not have dead corner.
The coil upper and lower end parts is provided with hot-forming expoxy glass silk fabric board end insulation 1, and the end insulation thickness is identical with diameter of wire; Wearing bar 4 by insulation passes air channel bar 3 and end insulation 1, bar 3 rivetings in air channel is being held on insulation 1 and the nonmagnetic steel supporting plate 8.The outer netted glass fiber of multilayer that adopts of reactor winding does not have 7 bindings of latitude band, and the lead of coil is tied up effectively; Reactor winding top is provided with flashing board 10; The reactor winding bottom is supported with a plurality of porcelain insulators 9, with nonmagnetic steel supporting plate 8 coil, porcelain insulator 9, flashing board 10 is reasonably linked together, and makes reactor become a firm integral body.
Claims (9)
1.35 kv 3-phase dry type hollow current-limiting reactor, comprise coil, insulating cylinder, supporting plate up and down, it is characterized in that: the copper stranded conductor that the coil of reactor adopts many fine copper wires to form is wound on the insulating cylinder, and the copper stranded conductor outside is surrounded by insulating barrier, and every layer line circle outside all scribbles epoxy curing agent; Be provided with F class F insulation cold-drawn air channel bar between every layer line circle, its upper and lower end parts is provided with the end insulation, and the end insulation thickness is identical with diameter of wire; Wearing bar by insulation passes air channel bar and end insulation, air channel bar riveting is being held on insulation and the supporting plate.
2. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: insulating cylinder adopts moulding epoxy fibreglass cloth tube, and its monolateral thickness is δ=3mm.
3. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: the insulating barrier of copper stranded conductor outside adopts polyvinyl chloride, and its monolateral thickness is δ=3mm.
4. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: the air channel bar is provided with ventilation ducts.
5. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: hot-forming expoxy glass silk fabric board is adopted in the end insulation.
6. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: supporting plate adopts the nonmagnetic steel supporting plate.
7. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: the outer netted glass fiber of multilayer that adopts of reactor winding does not have the binding of latitude band.
8. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: reactor winding top is provided with flashing board.
9. 35 kv 3-phase dry type hollow current-limiting reactors according to claim 1 is characterized in that: the reactor winding bottom is supported with a plurality of porcelain insulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200109796U CN201017753Y (en) | 2007-03-15 | 2007-03-15 | 35 kv and three-phase dry type hollow current-limiting reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200109796U CN201017753Y (en) | 2007-03-15 | 2007-03-15 | 35 kv and three-phase dry type hollow current-limiting reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017753Y true CN201017753Y (en) | 2008-02-06 |
Family
ID=39058251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200109796U Expired - Lifetime CN201017753Y (en) | 2007-03-15 | 2007-03-15 | 35 kv and three-phase dry type hollow current-limiting reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017753Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014108902A1 (en) * | 2013-01-11 | 2014-07-17 | Gridon Ltd | Fault current limiter |
-
2007
- 2007-03-15 CN CNU2007200109796U patent/CN201017753Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014108902A1 (en) * | 2013-01-11 | 2014-07-17 | Gridon Ltd | Fault current limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070315 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |