CN202178143U - Intermediate transformer for three phase test - Google Patents
Intermediate transformer for three phase test Download PDFInfo
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- CN202178143U CN202178143U CN2011202963068U CN201120296306U CN202178143U CN 202178143 U CN202178143 U CN 202178143U CN 2011202963068 U CN2011202963068 U CN 2011202963068U CN 201120296306 U CN201120296306 U CN 201120296306U CN 202178143 U CN202178143 U CN 202178143U
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- secondary winding
- star
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- winding
- phase test
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Abstract
The utility model discloses an intermediate transformer for a three phase test, comprising a primary winding and a secondary winding, wherein the primary winding adopts a corniform wiring structure; the secondary winding comprises a first secondary winding and a second secondary winding; the first secondary winding adopts a starlike wiring structure and is provided with a first secondary voltage changeover switch for changing the voltage output; and the second secondary winding adopts the starlike wiring structure and the corniform wiring structure and is provided with a star/corner alteration switch which is used to ensure that the second secondary winding is switched between the corniform wiring structure and the starlike wiring structure. By means of the intermediate transformer for the three phase test, disclosed by the utility model, the output of various-class voltage comprising higher voltage can be provided so that the fund input and the floor space are saved.
Description
Technical field
The utility model relates to the transformer technology field, particularly relates to a kind of three-phase test intermediate transformer that the output of multiple voltage level is provided.
Background technology
In the manufacturing process of transformer, transformer semi-finished product and finished product energizing test are the key projects of check transformer quality, in existing transformer semi-finished product and manufacture test; Adopt the voltage regulator power supply mostly, voltage regulator output is generally arrived between several hectovolts 0, the test that the transformer that some voltage is high needs; The high voltage regulator of voltage just can not meet the demands; Must set up the three-phase test intermediate transformer,, sometimes need the intermediate transformer of several different electric pressures could satisfy various voltage transformer test requirements documents for the transformer that adapts to various different voltages is done experiment; The device fabrication amount is big, and floor space is big.
The utility model content
The utility model technical problem to be solved is: a kind of three-phase test intermediate transformer that the output of multiple voltage level is arranged is provided.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of three-phase test intermediate transformer; Comprise former limit winding and secondary winding; Said former limit winding has the angle scheme structure; Said secondary winding comprises the first secondary winding and the second secondary winding; The said first secondary winding has star-star connection structure and the first secondary voltage change over switch that changes voltage output, the variable star angle switch that the said second secondary winding has star-star connection structure and angle scheme structure and is used to make the said second secondary winding between angle scheme structure and star-star connection structure, to change.
As a preferred implementation, each winding of the said second secondary winding comprises three sections wire turns and between said three sections wire turns, carries out second secondary voltage adjustment switch of wiring conversion.
Each winding of the said first secondary winding comprises two sections wire turns, draws 6 pass lines, to change over switch output voltage U 2L=(315KV ± 2*10%); Each winding of the said second secondary winding comprises three sections wire turns, changes the wire turn connected mode through change over switch, and when with the triangle connected mode, 2 sections wire turn series connection realize voltage 22KV, and two sections wire turn parallel connections realize voltage 11KV; When with the Y-connection mode; Two sections wire turn series connection realize voltage 38.1KV, and two sections wire turn parallel connections realize voltage 19KV, and two sections wire turn series connection are connected with the 3rd section wire turn again; Can realize output voltage 70KV, the said second secondary winding can be drawn 6 pass lines altogether to change over switch.
After having adopted technique scheme, the beneficial effect of the utility model is: three-phase test intermediate transformer, its secondary winding comprise the first secondary winding and the second secondary winding; The first secondary winding comprises two sections wire turns, draws 6 pass lines to change over switch, and the second secondary winding comprises three sections wire turns; Draw 6 pass lines to change over switch, always have 12 pass lines, the output of 10 step voltages is arranged to change over switch; Comprise high voltage output; Be up to 70KV, thereby realize that a three-phase test intermediate transformer replaces many three-phase test intermediate transformers, has saved fund input and floor space.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is that the former limit winding of the utility model connects sketch map;
Fig. 2 is the first secondary winding construction sketch map of the utility model;
Fig. 3 is the second secondary winding construction sketch map of the utility model.
Embodiment
With reference to accompanying drawing; A kind of three-phase test intermediate transformer; Comprise former limit winding and secondary winding; Said former limit winding has the angle scheme structure; Said secondary winding comprises the first secondary winding and the second secondary winding, and the said first secondary winding has star-star connection structure and the first secondary voltage change over switch that changes voltage output, the variable star angle switch that the said second secondary winding has star-star connection structure and angle scheme structure and is used to make the said second secondary winding between angle scheme structure and star-star connection structure, to change.
Each winding of the second secondary winding comprises three sections wire turns and between said three sections wire turns, carries out second secondary voltage adjustment switch of wiring conversion.
Each winding of the said first secondary winding comprises two sections wire turns, draws 6 pass lines to change over switch, and output voltage U 2L=(315KV ± 2*10%); Each winding of the said second secondary winding comprises three sections wire turns, changes the wire turn connected mode through change over switch, and when with the triangle connected mode, 2 sections wire turn series connection realize voltage 22KV, and two sections wire turn parallel connections realize voltage 11KV; When with the Y-connection mode; Two sections wire turn series connection realize voltage 38.1KV; Two sections wire turn parallel connections realize voltage 19KV, and two sections wire turn series connection are connected with the 3rd section wire turn again, can realize output voltage 70KV; The said second secondary winding can be drawn 6 pass lines altogether to change over switch, realizes being exported by 10 step voltages.
The utility model is not limited to above-mentioned embodiment, and all are based on the technical conceive of the utility model, and the structural improvement of having done all falls among the protection range of the utility model.
Claims (2)
1. three-phase test intermediate transformer; Comprise former limit winding and secondary winding; It is characterized in that: said former limit winding has the angle scheme structure; Said secondary winding comprises the first secondary winding and the second secondary winding; The said first secondary winding has star-star connection structure and the first secondary voltage change over switch that changes voltage output, the variable star angle switch that the said second secondary winding has star-star connection structure and angle scheme structure and is used to make the said second secondary winding between angle scheme structure and star-star connection structure, to change.
2. like the described three-phase test intermediate transformer of claim 1, it is characterized in that: each winding of the said second secondary winding comprises three sections wire turns and between said three sections wire turns, carries out second secondary voltage adjustment switch of wiring conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202963068U CN202178143U (en) | 2011-08-16 | 2011-08-16 | Intermediate transformer for three phase test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202963068U CN202178143U (en) | 2011-08-16 | 2011-08-16 | Intermediate transformer for three phase test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178143U true CN202178143U (en) | 2012-03-28 |
Family
ID=45868012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202963068U Expired - Fee Related CN202178143U (en) | 2011-08-16 | 2011-08-16 | Intermediate transformer for three phase test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178143U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337345A (en) * | 2013-05-24 | 2013-10-02 | 中电电气(江苏)股份有限公司 | Novel transformer in tap connecting structure |
| CN103871720A (en) * | 2012-12-13 | 2014-06-18 | 北京普源精电科技有限公司 | Measuring device allowing input voltage adjustment |
| CN103903837A (en) * | 2014-03-31 | 2014-07-02 | 镇江天力变压器有限公司 | Coil structure of multi-voltage experimental transformer |
| CN104835638A (en) * | 2015-05-12 | 2015-08-12 | 山东电工电气集团智能电气有限公司 | Intermediate transformer for multiple voltages output test |
-
2011
- 2011-08-16 CN CN2011202963068U patent/CN202178143U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871720A (en) * | 2012-12-13 | 2014-06-18 | 北京普源精电科技有限公司 | Measuring device allowing input voltage adjustment |
| CN103337345A (en) * | 2013-05-24 | 2013-10-02 | 中电电气(江苏)股份有限公司 | Novel transformer in tap connecting structure |
| CN103903837A (en) * | 2014-03-31 | 2014-07-02 | 镇江天力变压器有限公司 | Coil structure of multi-voltage experimental transformer |
| CN104835638A (en) * | 2015-05-12 | 2015-08-12 | 山东电工电气集团智能电气有限公司 | Intermediate transformer for multiple voltages output test |
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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: 20120328 Termination date: 20160816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |