CN202405067U - Low-voltage coil for epoxy dry transformer of polycrystalline silicon reduction furnace - Google Patents
Low-voltage coil for epoxy dry transformer of polycrystalline silicon reduction furnace Download PDFInfo
- Publication number
- CN202405067U CN202405067U CN2011204944019U CN201120494401U CN202405067U CN 202405067 U CN202405067 U CN 202405067U CN 2011204944019 U CN2011204944019 U CN 2011204944019U CN 201120494401 U CN201120494401 U CN 201120494401U CN 202405067 U CN202405067 U CN 202405067U
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- voltage coil
- winding
- polycrystalline silicon
- epoxy
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Abstract
The utility model discloses a low-voltage coil for an epoxy dry transformer of a polycrystalline silicon reduction furnace, which is formed by tightly winding a foil conductor and an insulation material and adopts an axial double-split structure with an upper winding and a lower winding, wherein the winding directions of the two windings are reverse, and the two windings are in parallel connection. The low-voltage coil disclosed by the utility model can ensure that the resistance of the epoxy dry transformer is less than or equal to 8 percent, and meanwhile, has stable ampere-turn, as well as favorable heat conducting performance, overload capacity and anti-impact ability.
Description
Technical field
The utility model belongs to the electric equipment field, relates in particular to the low-voltage coil in the polycrystalline silicon reducing furnace electricity consumption depressor.
Background technology
In the production process of polysilicon; Polycrystalline silicon reducing furnace is very crucial equipment; Temperature is directly connected to the reduction purity of silicon core in it and the quality of final polysilicon product quality in the stove and control well, thereby just seems particularly important for reduction furnace provides the transformer equipment of heating power supply.
Present common epoxy low-voltage coil of dry type transformer electric pressure is a kind of, and the tap that promptly goes between has only two; Only a few low-voltage coil electric pressure has two kinds, i.e. its lead-in wire tap has three, and for exceeding 5 when tap when above, it is exactly that the impedance variations scope is too big that transformer is the most directly influenced, and can not satisfy the requirement of polycrystalline silicon reducing furnace.And for one of nonstandard axially two its upper and lower low-voltage coil zero-emission of division rectifier transformer near the iron core place, one away from iron core near the low-voltage coil outside, and its upper and lower low-voltage coil need not parallel connection.This existing scheme can not satisfy the requirement of polycrystalline silicon reducing furnace.
The utility model content
The utility model purpose: to the problem and shortage of above-mentioned existing existence, the utility model provides a kind of impedance variations scope polycrystalline silicon reducing furnace epoxy dry-type transformer that is applicable to little, that have the good resistance short-time overload capacity to use low-voltage coil.
Technical scheme: for realizing above-mentioned utility model purpose; The utility model adopts following technical scheme: a kind of polycrystalline silicon reducing furnace epoxy dry-type transformer is used low-voltage coil; Adopt paper tinsel formula conductor and the tight coiling of insulating material, this low-voltage coil adopts axially two splitted construction, winding and following winding in the formation; Said go up winding and following winding around on the contrary, and employing is connected in parallel.
Adopt such scheme to make transformer have stable ampere-turn and good heat-conducting, thereby diameter that simultaneously can the control coil winding satisfy the requirement of transformer foil winding equipment.
To the improvement of technique scheme, this low-voltage coil is provided with by a plurality of low-voltage lead taps, and said low-voltage lead tap electric pressure from inside to outside reduces successively, thereby the impedance that can guarantee transformer makes it satisfy the requirement of polycrystalline silicon reducing furnace.
As preferably, said low-voltage lead tap has 5, and their electric pressure is respectively 2500V, 1250V, 660V, 380V, 265V, thereby guarantees all impedances≤8% of transformer, meets the requirement of polycrystalline silicon reducing furnace.
Beneficial effect: compared with prior art, the utlity model has following advantage: guarantee impedance≤8% of transformer, have stable ampere-turn and good heat-conducting, overload capacity and impact resistance simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the utility model; Should understand these embodiment only be used to the utility model is described and be not used in the restriction the utility model scope; After having read the utility model, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the utility model.
As shown in Figure 1; A kind of polycrystalline silicon reducing furnace transformer adopts high-purity paper tinsel formula conductor and the tight coiling of insulating material with low-voltage coil; And form through hot setting; Low-voltage coil carries out on the double-deck paper tinsel formula of common low pressure coil winding machine, and the winding process Automatic Control has functions such as permanent tension force, deburring and automatic deviation correction.This low-voltage coil adopts axially two splitted construction simultaneously, and at same iron mandrel winding 1 and following winding 2 on forming, coil shape of winding 1 and following winding 2 is identical with the number of turn on this, and is around on the contrary, consistent to guarantee the flow direction in the iron core.Winding at this low-voltage coil is provided with 5 low-voltage lead taps and 1 zero line tap from inside to outside successively; Their electric pressure reduces successively; Be respectively 2500V, 1250V, 660V, 380V, 265V, thereby the lead-in wire tap of the last winding 1 of identical electric pressure and following winding 2 is connected on the same low pressure lead terminal row 3 and makes things convenient for the installation of transformer to be connected.
Above-mentioned low-voltage coil is processed polycrystalline silicon reducing furnace epoxy dry-type transformer and through overtesting; In polysilicon production process, possibly occur as the laod unbalance rate surpass 30%, situation such as phase-deficient operation, current harmonics distortion; The low-voltage coil of the utility model is normally operation all, and performance is good.The low-voltage coil of the utility model has good insulation performance, thermal diffusivity, mechanical strength, overload capacity and impact resistance.
Claims (3)
1. a polycrystalline silicon reducing furnace epoxy dry-type transformer is used low-voltage coil; Adopt paper tinsel formula conductor and the tight coiling of insulating material, it is characterized in that: this low-voltage coil adopts axially two splitted construction, winding and following winding in the formation; Said go up winding and following winding around on the contrary, and employing is connected in parallel.
2. use low-voltage coil according to the said polycrystalline silicon reducing furnace epoxy of claim 1 dry-type transformer, it is characterized in that: this low-voltage coil is provided with a plurality of low-voltage lead taps, and said low-voltage lead tap electric pressure from inside to outside reduces successively.
3. use low-voltage coil according to the said polycrystalline silicon reducing furnace epoxy of claim 2 dry-type transformer, it is characterized in that: said low-voltage lead tap has 5, and their electric pressure is respectively 2500V, 1250V, 660V, 380V, 265V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204944019U CN202405067U (en) | 2011-12-02 | 2011-12-02 | Low-voltage coil for epoxy dry transformer of polycrystalline silicon reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204944019U CN202405067U (en) | 2011-12-02 | 2011-12-02 | Low-voltage coil for epoxy dry transformer of polycrystalline silicon reduction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405067U true CN202405067U (en) | 2012-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204944019U Expired - Fee Related CN202405067U (en) | 2011-12-02 | 2011-12-02 | Low-voltage coil for epoxy dry transformer of polycrystalline silicon reduction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394167A (en) * | 2011-12-02 | 2012-03-28 | 中电电气(江苏)股份有限公司 | Low-voltage coil for epoxy air-immersed transformer of polycrystalline silicon reduction furnace |
-
2011
- 2011-12-02 CN CN2011204944019U patent/CN202405067U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394167A (en) * | 2011-12-02 | 2012-03-28 | 中电电气(江苏)股份有限公司 | Low-voltage coil for epoxy air-immersed transformer of polycrystalline silicon reduction furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |