CN202977146U - Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer - Google Patents
Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer Download PDFInfo
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- CN202977146U CN202977146U CN 201220718272 CN201220718272U CN202977146U CN 202977146 U CN202977146 U CN 202977146U CN 201220718272 CN201220718272 CN 201220718272 CN 201220718272 U CN201220718272 U CN 201220718272U CN 202977146 U CN202977146 U CN 202977146U
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Abstract
The utility model relates to a single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer and belongs to the technical field of transformer manufacture. According to the technical scheme, the single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer comprises a single-phase four-pole core (1), a high-voltage winding HV1 (2), a high-voltage winding HV2 (3), a low-voltage winding LV1 (4), a regulating winding TV1 (5), a regulating winding TV2 (6), a low-voltage winding LV2 (7) and a single-phase off-circuit tap changer (8). The regulating winding TV1, the low-voltage winding LV1 and the high-voltage winding HV1 are sequentially arranged in a first core pole from inside to outside. The regulating winding TV2, the low-voltage winding LV2 and the high-voltage winding HV2 are sequentially arranged in a second core pole from inside to outside. The single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer has the advantages that the transformer is used for direct connection of electricity to a superhigh-voltage grid for large energy bases, and middle links are omitted; the novel design structure increases safety and reliability of a superhigh-voltage transformer insulation system, and the problem of transportation overmarging of the very large transformers.
Description
Technical field
The utility model relates to a kind of single-phase, the large capacity non-excitation pressure adjustment of ultra high voltage ac step-up transformer, belongs to technical field of transformer manufacturing.
Background technology
At present, the large capacity non-excitation pressure adjustment of the ultra high voltage of background technology ac step-up transformer unreasonable structure can not directly access extra-high voltage grid, and intermediate link is many; Transportation is transfinited, and the security reliability of extra-high voltage transformer insulation system is poor.
The utility model content
The utility model purpose is to provide a kind of single-phase, the large capacity non-excitation pressure adjustment of ultra high voltage ac step-up transformer, improves the security reliability of ultra high voltage transformation insulation system, the transportation that the solves oversize transformer problem that transfinites.
The technical solution of the utility model is: a kind of single-phase, the large capacity non-excitation pressure adjustment of ultra high voltage ac step-up transformer, comprise single-phase four legged magnetic core, high pressure winding HV1, high pressure winding HV2, low pressure winding L V1, pressure regulation winding TV1, pressure regulation winding TV2, low pressure winding L V2 and single-phase non-excitation pressure adjustment switch, single-phase four legged magnetic core arranges two principal posts unshakable in one's determination, two other posts, two principal posts unshakable in one's determination are core limb one and core limb two; Core limb one winding from inside to outside put in order into pressure regulation winding TV1, low pressure winding LV1 and high pressure winding HV1, core limb two winding from inside to outside puts in order and is pressure regulation winding TV2, low pressure winding L V2 and high pressure winding HV2.
Winding around on the contrary on two principal posts unshakable in one's determination; Access single-phase non-excitation pressure adjustment switch after pressure regulation winding TV1 and the parallel connection of pressure regulation winding TV2 respective terminal, low pressure winding L V1 and low pressure winding L V2 are in parallel, high pressure winding HV1 and high pressure winding HV2 are in parallel, and the end after parallel connection connects with the pressure regulation winding TV1 head end that parallel connection is connected with pressure regulation winding TV2.
The utility model adopts single-phase four legged magnetic core, and two principal posts unshakable in one's determination are set, two other posts.Half that each principal post capacity unshakable in one's determination is total capacity reduced height unshakable in one's determination effectively.The high voltage winding component is up and down two branch roads, two branch road winding parallels, and the high pressure head end is drawn in transformer middle part parallel connection.
The utility model is single-phase, and two principal post winding parallels unshakable in one's determination have independent pressure regulation winding, non-excitation pressure adjustment.Be different from common generator step-up transformer and the tap winding segments be arranged on the inside of high pressure winding, but adopt an independently pressure regulation winding, both reduce the whole height of transformer, also reduced the horizontal leakage field of transformer, reduced the axial mechanical force of short circuit; Also be different from other on-load tap-changing transformers and the pressure regulation winding be arranged on the outside of high pressure winding, but the pressure regulation winding is arranged on the most inboard near iron, simplified the insulation system of transformer, improved transformer insulated system security reliability.
The utility model beneficial effect is: this transformer is used for large-scale Energy Base electric energy and directly accesses extra-high voltage grid, cuts down the number of intermediate links; Adopt brand-new project organization, improve the security reliability of extra-high voltage transformer insulation system, the transportation that the solves oversize transformer problem that transfinites.
Description of drawings
Fig. 1 is that transformer device structure of the present invention is arranged vertical view;
Fig. 2 is device body winding Pareto diagram of the present invention;
Fig. 3 is electrical wiring schematic diagram of the present invention;
In figure: 1 single-phase four legged magnetic core, 2 high pressure winding HV1,3 high pressure winding HV2,4 low pressure winding L V1,5 pressure regulation winding TV1,6 pressure regulation winding TV2,7 low pressure winding L V2,8 single-phase non-excitation pressure adjustment switches.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further.
A kind of single-phase, the large capacity non-excitation pressure adjustment of ultra high voltage ac step-up transformer, comprise single-phase four legged magnetic core, high pressure winding HV1, high pressure winding HV2, low pressure winding L V1, pressure regulation winding TV1, pressure regulation winding TV2, low pressure winding L V2 and single-phase non-excitation pressure adjustment switch, single-phase four legged magnetic core arranges two principal posts unshakable in one's determination, two other posts, two principal posts unshakable in one's determination are core limb one and core limb two; Core limb one winding from inside to outside puts in order and is that pressure regulation winding TV1, low pressure winding L V1 and high pressure winding HV1, core limb two winding from inside to outside put in order and is pressure regulation winding TV2, low pressure winding L V2 and high pressure winding HV2.
Winding around on the contrary on two principal posts unshakable in one's determination; Access single-phase non-excitation pressure adjustment switch after pressure regulation winding TV1 and the parallel connection of pressure regulation winding TV2 respective terminal, low pressure winding L V1 and low pressure winding L V2 are in parallel, high pressure winding HV1 and high pressure winding HV2 are in parallel, and the end after parallel connection connects with the pressure regulation winding TV1 head end that parallel connection is connected with pressure regulation winding TV2.
Claims (2)
1. single-phase, the large capacity non-excitation pressure adjustment of ultra high voltage ac step-up transformer, it is characterized in that: comprise single-phase four legged magnetic core (1), high pressure winding HV1(2), high pressure winding HV2(3), low pressure winding L V1(4), pressure regulation winding TV1(5), pressure regulation winding TV2(6), low pressure winding L V2(7) and single-phase non-excitation pressure adjustment switch (8), single-phase four legged magnetic core arranges two principal posts unshakable in one's determination, two other posts, two principal posts unshakable in one's determination are core limb one and core limb two; Core limb one winding from inside to outside puts in order and is that pressure regulation winding TV1, low pressure winding L V1 and high pressure winding HV1, core limb two winding from inside to outside put in order and is pressure regulation winding TV2, low pressure winding L V2 and high pressure winding HV2.
2. a kind of single-phase, the large capacity non-excitation pressure adjustment of ultra high voltage ac step-up transformer according to claim 1 is characterized in that: winding around on the contrary on two principal posts unshakable in one's determination; Access single-phase non-excitation pressure adjustment switch after pressure regulation winding TV1 and the parallel connection of pressure regulation winding TV2 respective terminal, low pressure winding L V1 and low pressure winding L V2 are in parallel, high pressure winding HV1 and high pressure winding HV2 are in parallel, and the end after parallel connection connects with the pressure regulation winding TV1 head end that parallel connection is connected with pressure regulation winding TV2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718272 CN202977146U (en) | 2012-12-24 | 2012-12-24 | Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718272 CN202977146U (en) | 2012-12-24 | 2012-12-24 | Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977146U true CN202977146U (en) | 2013-06-05 |
Family
ID=48518190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220718272 Expired - Lifetime CN202977146U (en) | 2012-12-24 | 2012-12-24 | Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546015A (en) * | 2017-10-10 | 2018-01-05 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of circuit adjustable transformer with vector function |
-
2012
- 2012-12-24 CN CN 201220718272 patent/CN202977146U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546015A (en) * | 2017-10-10 | 2018-01-05 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of circuit adjustable transformer with vector function |
| CN107546015B (en) * | 2017-10-10 | 2024-04-05 | 国网辽宁省电力有限公司鞍山供电公司 | Line voltage regulating transformer with vector conversion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |