CN202258676U - Drier for transformer - Google Patents
Drier for transformer Download PDFInfo
- Publication number
- CN202258676U CN202258676U CN2011203941314U CN201120394131U CN202258676U CN 202258676 U CN202258676 U CN 202258676U CN 2011203941314 U CN2011203941314 U CN 2011203941314U CN 201120394131 U CN201120394131 U CN 201120394131U CN 202258676 U CN202258676 U CN 202258676U
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- CN
- China
- Prior art keywords
- transformer
- lead
- leads
- drying device
- conducting rod
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- 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.)
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Abstract
The utility model relates to the electrical field, and particularly relates to a drier for a transformer. The drier comprises a power supply and a lead, one end of the lead is connected with a conductive rod on the low voltage side of the transformer, the lead is uniformly wound on an oil box (i.e. transformer casing) of the transformer, and the power supply is connected with another conductive rod on the high voltage side of the transformer. The method by adopting the drier comprises that the wire is connected with the conductive rod on the low voltage side of the transformer; the connected conductive wire is uniformly wound on the oil box of the transformer( housing of the transformer); and the power supply is connected with the conductive rod on the high voltage side of the transformer. The drier for the transformer provided by the utility model can enable the transformer to be uniformly heated, so as to dry the transformer.
Description
Technical field
The utility model relates to electric field, is specifically related to the drying device of transformer.
Background technology
Change coil windings or main insulant at transformer suspended core, transformer, and under the various situation such as new clothes transformer and since in air open-assembly time surpassed the stipulated time, transformer coli winding or insulant make moist easily, need dried.At present, the drying means of employing comprises: induction heating, hot-air seasoning, circuit drying method, baking oven (room, cabinet) seasoning, heating-up furnace heating etc., during these methods drying transformers; Be easy to make the inner non-uniform temperature that produces of the transformer that is dried, local overheating, it is burned to insulate; Causing fire, and need power supply capacity big especially with the dry transformer of these methods, generally is more than 10% of transformer capacity that is dried; The electric weight that consumes so is just many especially; Sometimes also can produce high voltage and jeopardize personal safety etc., have many unfavorable factors, not only uneconomical but also dangerous.
For fear of the above-mentioned phenomenon that causes fire because of local overheating,, transformer need special personnel to keep an eye on when being carried out drying,, in case still there is bigger potential safety hazard in personnel's carelessness.
The utility model content
The utility model provides a kind of drying device of transformer, can make the transformer thermally equivalent.
The utility model provides a kind of drying device of transformer; Comprise power supply and lead; One end of said lead links to each other with the conducting rod of step down side, and said lead uniform winding is on the fuel tank of transformer, and said power supply links to each other with the conducting rod of transformer high-voltage side.
Said transformer is preferably three-phase transformer, and said conducting rod is preferably the three-phase conducting rod, and the radical of said lead is preferably 3;
One end of 3 leads links to each other with a, b, the c three-phase conducting rod of step down side respectively;
3 leads by a go up, among the b, c down or under a, among the b, the last correspondence position of c be wrapped on the fuel tank of transformer, the other end of 3 leads links to each other.
3 said leads are all by twining or all twining by counterclockwise clockwise, and direction is consistent.
The number of turn of 3 said lead windings is preferably equal.
The length of said lead is preferably 30 meters～35 meters, and more preferably the length of said lead is 33 meters.
The cross-sectional area of said lead is preferably 6 square millimeters or greater than 6 square millimeters.
A kind of transformer dry device through the utility model provides can reach following beneficial effect:
1. make the transformer thermally equivalent.The drying device of the utility model comprises power supply and lead, and an end of said lead links to each other with the conducting rod of step down side, and said lead is wrapped on the fuel tank of transformer, and said power supply links to each other with the conducting rod of transformer high-voltage side.The lead uniform winding makes to form uniform eddy current on the tank wall of oil tank of transformer on the fuel tank of transformer, and then heating; Make the transformer thermally equivalent; Carry out drying,, can in dry run, adopt the mode of continuous drying because be heated evenly; Can not produce high voltage and high-temperature, the protection personal safety because of off and on drying.
2. reduce cost.The utility model since with the lead uniform winding on the fuel tank of transformer; Transformer can thermally equivalent, can carry out the drying of transformer effectively, the loss that the infringement of avoiding local overheating to bring brings; Simultaneously also no longer need personnel to keep an eye on specially, thereby saved human cost.
3. simplicity of design, recycle.The utility model only need can carry out drying to transformer after the energising with lead uniform winding on the fuel tank of transformer, after transformer dry finishes, lead is pulled down, and for dry transformer is subsequent use next time, the transformer dry device is simple, flexible design.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; Below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art; Obviously, the accompanying drawing in below describing only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is that 3 leads of the utility model are by the structural representation that twines clockwise.
Fig. 2 is that 3 leads of the utility model are by the structural representation that twines counterclockwise.
Embodiment
Below will combine accompanying drawing that the technical scheme of each embodiment of the utility model is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
The utility model provides a kind of drying device of transformer; Comprise power supply and lead; One end of said lead links to each other with the conducting rod of step down side, and said lead is wrapped on the fuel tank of transformer (being on the shell of transformer), and said power supply links to each other with the conducting rod of transformer high-voltage side.The lead uniform winding is (being on the shell wall of transformer) on the fuel tank of transformer, makes that (being on the shell wall of transformer) forms uniform eddy current on the tank wall of oil tank of transformer, and then heating; Make the transformer thermally equivalent, carry out drying, because be heated evenly; Can in dry run, adopt the mode of continuous drying, can be and produce high voltage and high-temperature because of off and on drying, thus saves energy; The protection personal safety prevents fire.
The power supply that the utility model adopts can be the 380V power supply, also can be the 220V power supply, in order to be suitable for commercial Application, adopts the 380V power supply more.
Said transformer is preferably three-phase transformer, and said conducting rod is preferably the three-phase conducting rod, and the radical of said lead is preferably 3; Because power transformer is three-phase,, need 3 leads to the three-phase conducting rod for power transformer is carried out drying.
One end of 3 leads links to each other with a, b, the c three-phase conducting rod of step down side respectively; This end that links to each other with conducting rod also can be called the head end of 3 leads;
3 leads by a go up, among the b, c down or under a, among the b, the last correspondence position of c be wrapped on the fuel tank of transformer (being on the shell of transformer); The other end of 3 leads interconnects; Form the co-channel of a lead, this continuous end also can be called the end of 3 leads.
3 said leads are preferably all by clockwise winding (as shown in Figure 1) or are preferably all by counterclockwise winding (as shown in Figure 2), and said lead is wrapped in that (being on the shell of transformer) is preferably even distribution on the said oil tank of transformer.Adopt identical canoe can make after the energising, coil (being on the shell wall of transformer) on the fuel tank tank wall of transformer forms uniform eddy current, and then produces soaking, plays dry effect.
The number of turn of 3 said lead windings is preferably equal.Equal turn numbers makes that (being on the shell wall of transformer) forms uniform eddy current on the fuel tank tank wall of transformer, and then produces soaking in the energising dry run, plays dry effect.If through regulating canoe (such as the distribution situation of adjustment lead pitch of the laps on fuel tank); Make that (being on the shell wall of transformer) forms under the situation of uniform eddy current on the fuel tank tank wall of transformer; Also can there be a little unequal in the number of turn that 3 said leads twine, but this situation is preferably and is based upon under the dry prerequisite of transformer thermally equivalent.
The length of said lead is preferably 30 meters～35 meters, more preferably 33 meters.Adopt 33 meters conductor length can reach the effective dry effect.If adopt the 220V power supply also can reach dry effect, just effect is not so good as the good of 380V.
The cross-sectional area of said lead is preferably more than 6 square millimeters (6 square millimeters or greater than 6 square millimeters); To the 380V power supply, the cross-sectional area of said lead is preferably more than 6 square millimeters, can make drying effect good, and can not produce very large electric current and temperature, and then avoids dangerous generation, improves personal safety.If adopt the 220V power supply also can reach dry effect, just effect is not so good as the good of 380V.
The drying device that adopts the utility model to provide carries out drying means to transformer, comprises the steps:
Lead is linked to each other with the conducting rod of step down side;
With the lead uniform winding that has connected (being on the shell of transformer) on the fuel tank of transformer;
The conducting rod of power supply with the transformer high-voltage side linked to each other;
The heat that produces through the electric current in the lead carries out drying to transformer.
This drying means is that the drying device to the utility model designs, and the lead uniform winding is (being on the transformer case) on the fuel tank of transformer, makes that (being on the shell wall of transformer) forms uniform eddy current on the tank wall of oil tank of transformer; And then heating, make the transformer thermally equivalent, carry out drying; Because be heated evenly; Can in dry run, adopt the mode of continuous drying, can be and produce high voltage and high-temperature because of off and on heating, thus saves energy; The protection personal safety prevents fire.
In a specific embodiment, when said transformer was three-phase transformer, the radical of said lead was 3;
Said lead is linked to each other to be preferably further with the electric pole of step down side comprise: an end (head end) of 3 leads is linked to each other with a, b, the c three-phase conducting rod of step down side respectively;
The said lead that will connect is wrapped on the fuel tank of transformer (being on the shell of transformer) and is preferably further and comprises: with 3 leads by last a, middle b, down under c or a, among the b, the last correspondence position of c, be wrapped on the fuel tank of transformer (being on the shell of transformer); The other end of 3 leads is linked to each other.
The mode of said winding is preferably all twines every said lead by clockwise (as shown in Figure 1) or counterclockwise (as shown in Figure 2), the pitch of the laps that said lead twines is (being on the transformer case) evenly distribution on said oil tank of transformer.Adopt identical canoe can make after the energising, on the fuel tank tank wall of transformer, form uniform eddy current, and then produce soaking, play dry effect.
Said 3 leads by a go up, among the b, c down or under a, among the b, the last correspondence position of c be wrapped on the fuel tank of transformer (being on the shell of transformer) and be preferably further and comprise: 3 said leads are wound up as the identical number of turn.Equal turn numbers makes that (being on the shell wall of transformer) forms uniform eddy current on the fuel tank tank wall of transformer in the energising dry run, and then produces soaking, plays dry effect.If through regulating canoe (such as the distribution situation of adjustment lead pitch of the laps on fuel tank); Make that (being on the shell wall of transformer) forms under the situation of uniform eddy current on the fuel tank tank wall of transformer; Also can there be a little unequal in the number of turn that 3 said leads twine, but this situation is preferably and is based upon under the dry prerequisite of transformer thermally equivalent.
A kind of transformer dry device through the utility model provides can reach following beneficial effect:
1. make the transformer thermally equivalent.The drying device of the utility model comprises power supply and lead, and an end of said lead links to each other with the conducting rod of step down side, and said lead is wrapped on the fuel tank of transformer (being on the transformer case), and said power supply links to each other with the conducting rod of transformer high-voltage side.The lead uniform winding is (being on the transformer case) on the fuel tank of transformer, makes that (being on the shell wall of transformer) forms uniform eddy current on the tank wall of oil tank of transformer, and then heating, makes the transformer thermally equivalent, carries out drying.
2. reduce cost.The utility model since with the lead uniform winding (being on the shell of transformer) on the fuel tank of transformer; Transformer can thermally equivalent; Can carry out the drying of transformer effectively; The loss that the infringement of avoiding local overheating to bring brings also no longer needs personnel to keep an eye on specially simultaneously, thereby has saved human cost.
3. simplicity of design, recycle.The utility model only need can carry out drying to transformer after the energising, after transformer dry finishes with lead in (being on the shell of transformer) uniform winding on the fuel tank of transformer; Lead is pulled down; For dry transformer is subsequent use next time, the transformer dry device is simple, flexible design.
The various embodiment that the utility model provides can make up with any-mode as required each other, and the technical scheme that obtains through this combination is also in the scope of the utility model.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also comprises these changes and modification interior.
Claims (8)
1. the drying device of a transformer is characterized in that, comprises power supply and lead, and an end of said lead links to each other with the conducting rod of step down side, and said lead uniform winding is on the fuel tank of transformer, and said power supply links to each other with the conducting rod of transformer high-voltage side.
2. the drying device of transformer as claimed in claim 1 is characterized in that, said transformer is a three-phase transformer, and said conducting rod is the three-phase conducting rod, and the radical of said lead is 3;
One end of 3 leads links to each other with a, b, the c three-phase conducting rod of step down side respectively;
3 leads by a go up, among the b, c down or under a, among the b, the last correspondence position of c be wrapped on the fuel tank of transformer, the other end of 3 leads links to each other.
3. the drying device of transformer as claimed in claim 2 is characterized in that, 3 said leads are all by twining clockwise, and direction is consistent.
4. the drying device of transformer as claimed in claim 2 is characterized in that, 3 said leads are all by twining counterclockwise, and direction is consistent.
5. the drying device of transformer as claimed in claim 2 is characterized in that, 3 equal turn numbers that said lead twines.
6. like the drying device of each described transformer of claim 1-5, it is characterized in that the length of said lead is 30 meters～35 meters.
7. the drying device of transformer as claimed in claim 6 is characterized in that, the length of said lead is 33 meters.
8. like the drying device of each described transformer of claim 1-5, it is characterized in that the cross-sectional area of said lead is 6 square millimeters or greater than 6 square millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203941314U CN202258676U (en) | 2011-10-17 | 2011-10-17 | Drier for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203941314U CN202258676U (en) | 2011-10-17 | 2011-10-17 | Drier for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258676U true CN202258676U (en) | 2012-05-30 |
Family
ID=46119882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203941314U Expired - Fee Related CN202258676U (en) | 2011-10-17 | 2011-10-17 | Drier for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360758A (en) * | 2011-10-17 | 2012-02-22 | 兴文县僰力机电工程设备有限公司 | Drying device and drying method of transformer |
-
2011
- 2011-10-17 CN CN2011203941314U patent/CN202258676U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360758A (en) * | 2011-10-17 | 2012-02-22 | 兴文县僰力机电工程设备有限公司 | Drying device and drying method of transformer |
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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: 20120530 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |