CN202258743U - Tapping device for simultaneously regulating voltage at upper part and lower part of primary coil - Google Patents
Tapping device for simultaneously regulating voltage at upper part and lower part of primary coil Download PDFInfo
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- CN202258743U CN202258743U CN2011203007733U CN201120300773U CN202258743U CN 202258743 U CN202258743 U CN 202258743U CN 2011203007733 U CN2011203007733 U CN 2011203007733U CN 201120300773 U CN201120300773 U CN 201120300773U CN 202258743 U CN202258743 U CN 202258743U
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- pressure regulation
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Abstract
The utility model relates to a tapping device for simultaneously regulating voltage at the upper part and the lower part of a primary coil. The tapping device consists of a plurality of tapping units, wherein each tapping unit comprises a voltage regulation winding and tapping terminals led out by the voltage regulation winding, the tapping terminals are led out to a tapping panel, the tapping panel is divided into an upper tapping region and a lower tapping region, a plurality of tapping terminals are led out to the upper tapping region, a plurality of tapping terminals are led out to the lower tapping region, two tapping terminals positioned in the same tapping region are connected through a tapping sheet, during voltage regulation, two tapping sheets are connected for one-gear voltage regulation, and the two tapping sheets are respectively connected with the two tapping terminals arranged on the upper tapping region and the two tapping terminals arranged on the lower tapping region. The tapping device has the advantages that the tapping panel is divided into the upper tapping region and the lower tapping region, the eddy current loss caused by transverse flux leakage through unbalanced ampere-turn distribution of a transformer is reduced, the tapping bridging range and the electric field gradient of tapping leads and a coil body are reduced, the partial discharge is more preferably controlled, and the operation of the transformer is safer and more efficient.
Description
Technical field
the utility model relates to a kind of primary winding tapping device of pressure regulation simultaneously up and down.
Background technology
in the prior art; In transformer in order to regulate the voltage in when output; Usually take in coil, to be provided with the method for tap terminals, the voltage ratio of transformer is changed, come output voltage is adjusted with this through the number of turn of adjusting coil.
When more or voltage is higher when the transformer tap terminals (transformer with 10kV ± 4x2.5% is an example); The outlet sketch map of conventional tap terminals and schematic diagram are like Fig. 1, shown in 2; Regulate the primary side voltage of transformer through regulating the branch contact pin 2 ' that respectively leads between the tap terminals 1 ' on the tap panel 3 ', pressure regulation voltage is respectively:
1, when minute contact pin is connected B1-B2, primary side voltage 10x (1+4x2.5%) kV,
2, when minute contact pin is connected B2-B3, primary side voltage 10x (1+3x2.5%) kV,
3, when minute contact pin is connected B3-B4, primary side voltage 10x (1+2x2.5%) kV,
4, when minute contact pin is connected B4-B5, primary side voltage 10x (1+2.5%) kV,
5, when minute contact pin is connected B5-B6, primary side voltage 10kV,
6, when minute contact pin is connected B6-B7, primary side voltage 10x (1-2.5%) kV,
7, when minute contact pin is connected B7-B8, primary side voltage 10x (1-2x2.5%) kV,
8, when minute contact pin is connected B8-B9, primary side voltage 10x (1-3x2.5%) kV,
9, when minute contact pin is connected B9-B10, primary side voltage 10x (1-4x2.5%) kV,
There is following shortcoming in this structure:
by visible among Fig. 2, transformer voltage is adjustment gradually from high to low, in fact exactly a part of number of turn in the transformer high-voltage coil is got rid of gradually, makes its process out of service.Be example when being connected B9-B10 with minute contact pin, at this moment, terminal B9 is out of service to the number of turn between the B10, and ampere-turn is seriously uneven herein so just to cause transformer, and the transformer leakage field increases, and supplementary load loss increase.
After
B9 terminal is drawn from coil; Need adjust to the relevant position of coil panel, the turn ratio that it strode across is more, and the voltage ratio that promptly strides across is bigger; So just need bigger insulation distance; Otherwise be easy to cause the discharge on terminal and coil-conductor surface, there is certain hidden danger in the control that the office of being unfavorable for puts to the safe operation of transformer.
Summary of the invention
the utility model provides a kind of primary winding tapping device of pressure regulation simultaneously up and down.
For achieving the above object, the technical scheme that the utility model adopts is:
a kind of primary winding is the tapping device of pressure regulation simultaneously up and down; It is made up of a plurality of tap; The tap terminals that each described tap comprises the pressure regulation winding, drawn by described pressure regulation winding; Described tap terminals leads to the tap panel; Described tap panel is divided into top tap region, bottom tap region, and several described tap terminals lead to described top tap region, and several described tap terminals lead to described bottom tap region; Being positioned at two described tap terminals of same tap region connects through a branch contact pin; When carrying out pressure regulation, connect two contact pin in described minute and carry out one grade of pressure regulation, and two contact pin in described minute connects on the tap region of described top two described tap terminals on two the described tap terminals and described bottom tap region respectively.
preferably, described tap terminals is provided with 12.
further preferably, 6 described tap terminals lead to described top tap region, 6 described tap terminals lead to described bottom tap region.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
The principle that
the utility model utilization is broken the whole up into parts is divided into upper and lower two tap region to the tap panel, has not only reduced by the distribution of transformer ampere-turn uneven; Cause the caused eddy current loss of horizontal leakage field, simultaneously, reduced tap cross-over connection scope; Reduce the electric-force gradient of tap lead and coil body; Control office puts better, makes the operation of transformer safer, more efficient.
Description of drawings
Accompanying drawing 1 is the outlet sketch map of many tap terminals in the prior art;
Accompanying drawing 2 is the outlet schematic diagram of many tap terminals in the prior art;
Accompanying drawing 3 is the outlet sketch map of the many tap terminals of pressure regulation up and down in the utility model;
accompanying drawing 4 is the outlet schematic diagram of the many tap terminals of pressure regulation up and down in the utility model.
wherein: 1, tap terminals; 2, divide contact pin; 3, tap panel; 30, top tap region; 31, top tap region.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
a kind of primary winding as shown in Figure 3 is the tapping device of pressure regulation simultaneously up and down; It is made up of a plurality of tap; Each tap comprises the pressure regulation winding, by the tap terminals 1 that the pressure regulation winding is drawn, tap terminals 1 leads to tap panel 3.Tap panel 3 is divided into top tap region 30, bottom tap region 31; Several tap terminals 1 lead to top tap region 30; Several tap terminals 1 lead to bottom tap region 31, and two tap terminals 1 that are positioned at same tap region are connected through a branch contact pin 2.
in the present embodiment, tap terminals 1 is provided with 12, wherein, 6 tap terminals 1 lead to 30,6 tap terminals 1 of top tap region and lead to bottom tap region 31.When carrying out pressure regulation, connect two branch contact pin 2 and carry out one grade of pressure regulation, and two branch contact pin 2 connects two tap terminals 1 on two tap terminals 1 and the bottom tap region 31 on the top tap region 30 respectively.
As shown in Figure 4, existing transformer with 10kV ± 4x2.5% is an example, can carry out transferring the files of following voltage:
1, be connected A1-A2 when minute contact pin, during A7-A8, primary side voltage 10x (1+4x2.5%) kV,
2, be connected A2-A3 when minute contact pin, during A7-A8, primary side voltage 10x (1+3x2.5%) kV,
3, be connected A2-A3 when minute contact pin, during A8-A9, primary side voltage 10x (1+2x2.5%) kV,
4, be connected A3-A4 when minute contact pin, during A8-A9, primary side voltage 10x (1+2.5%) kV,
5, be connected A3-A4 when minute contact pin, during A9-A10, primary side voltage 10kV,
6, be connected A4-A5 when minute contact pin, during A9-A10, primary side voltage 10x (1-2.5%) kV,
7, be connected A4-A5 when minute contact pin, during A10-A11, primary side voltage 10x (1-2x2.5%) kV,
8, be connected A5-A6 when minute contact pin, during A10-A11, primary side voltage 10x (1-3x2.5%) kV,
9, be connected A5-A6 when minute contact pin, during A11-A12, primary side voltage 10x (1-4x2.5%) kV.
like this; Tap terminals 1 through connecting upper and lower tap region is carried out pressure regulation simultaneously; Just structurally reduced the electric field strength at tap lead place, the ampere-turn of having optimized transformer distributes, and has effectively solved the existing hidden danger of conventional structure.
the foregoing description is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (3)
1. the primary winding tapping device of pressure regulation simultaneously up and down; It is made up of a plurality of tap; Each described tap comprises the pressure regulation winding, by the tap terminals that described pressure regulation winding is drawn, described tap terminals leads to the tap panel, it is characterized in that: described tap panel is divided into top tap region, bottom tap region; Several described tap terminals lead to described top tap region; Several described tap terminals lead to described bottom tap region, are positioned at two described tap terminals of same tap region and connect through a branch contact pin, when carrying out pressure regulation; Connect two contact pin in described minute and carry out one grade of pressure regulation, and two contact pin in described minute connects on the tap region of described top two described tap terminals on two the described tap terminals and described bottom tap region respectively.
2. a kind of primary winding according to claim 1 is the tapping device of pressure regulation simultaneously up and down, and it is characterized in that: described tap terminals is provided with 12.
3. a kind of primary winding according to claim 2 is the tapping device of pressure regulation simultaneously up and down, and it is characterized in that: 6 described tap terminals lead to described top tap region, and 6 described tap terminals lead to described bottom tap region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203007733U CN202258743U (en) | 2011-08-18 | 2011-08-18 | Tapping device for simultaneously regulating voltage at upper part and lower part of primary coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203007733U CN202258743U (en) | 2011-08-18 | 2011-08-18 | Tapping device for simultaneously regulating voltage at upper part and lower part of primary coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258743U true CN202258743U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203007733U Expired - Fee Related CN202258743U (en) | 2011-08-18 | 2011-08-18 | Tapping device for simultaneously regulating voltage at upper part and lower part of primary coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571213A (en) * | 2016-10-28 | 2017-04-19 | 许继集团有限公司 | Y-shaped connection transformer |
| CN109545521A (en) * | 2019-01-04 | 2019-03-29 | 吴江变压器有限公司 | A kind of high-voltage tap outlet method of dry-type transformer |
-
2011
- 2011-08-18 CN CN2011203007733U patent/CN202258743U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571213A (en) * | 2016-10-28 | 2017-04-19 | 许继集团有限公司 | Y-shaped connection transformer |
| CN109545521A (en) * | 2019-01-04 | 2019-03-29 | 吴江变压器有限公司 | A kind of high-voltage tap outlet method of dry-type 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: 20140818 |
|
| EXPY | Termination of patent right or utility model |