CN202977145U - Independent-voltage-regulating three-winding off-circuit-regulation power transformer - Google Patents
Independent-voltage-regulating three-winding off-circuit-regulation power transformer Download PDFInfo
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- CN202977145U CN202977145U CN 201220717720 CN201220717720U CN202977145U CN 202977145 U CN202977145 U CN 202977145U CN 201220717720 CN201220717720 CN 201220717720 CN 201220717720 U CN201220717720 U CN 201220717720U CN 202977145 U CN202977145 U CN 202977145U
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Abstract
The utility model relates to an independent-voltage-regulating three-winding off-circuit-regulation power transformer and belongs to the technical field of transformers. The independent-voltage-regulating three-winding off-circuit-regulation power transformer comprises a core (1), a low-voltage winding (2), a medium-voltage winding (3), a high-voltage winding (4), a voltage-regulating winding (5), an off-circuit-regulation switch (6) and a driving mechanism (7) of a switch belt. The off-circuit-regulation switch is of three-phase integrated structure, disposed at an end of a transformer oil tank and matched with the driving mechanism of the switch belt. The core is of three-phase five-column structure, and a core stacking sheet is of six-step step overlapping structure. The independent-voltage-regulating three-winding off-circuit-regulation power transformer has the advantages that ampere-turn balance between the high-voltage winding and the medium-voltage winding as well as the high-voltage winding and the low-voltage winding can be effectively improved when off-circuit regulation of a transformer is realized, no-load loss and noise of the transformer are effectively reduced, ampere balance among windings and overall short-circuit resistance of the transformer are improved.
Description
Technical field
The utility model relates to a kind of three winding non-excitation pressure adjustment power transformers with independent pressure regulation, belongs to the transformer technology field.
Background technology
At present, three conventional winding non-excitation pressure adjustment power transformers are usually with the pressure regulation part of the high pressure several line cakes as the high pressure winding, be arranged in the end of high pressure winding, so not only increased the coiling difficulty of high-tension coil, and because the appearance of high-voltage branching section makes between height, middle pressure winding, the bad control of ampere-turn equilibrium between the high and low pressure winding, the short-circuit force that makes the regional winding of tap bear increases, thereby reduced the whole anti-short circuit capability of transformer, stayed hidden danger for the safe operation of transformer.
The utility model content
The utility model purpose is to provide a kind of three winding non-excitation pressure adjustment power transformers with independent pressure regulation, when satisfying transformer non-exciting regulation, can improve effectively that transformer is high, between middle pressure winding and the ampere-turn equilibrium between the high and low pressure winding, improve the anti-short circuit capability of transformer, solved the problems referred to above that background technology exists.
The technical solution of the utility model is: a kind of three winding non-excitation pressure adjustment power transformers with independent pressure regulation, the transmission mechanism that comprises iron core, low pressure winding, middle pressure winding, high pressure winding, pressure regulation winding, non-excitation pressure adjustment switch and switch band, outer concentric locking collar successively unshakable in one's determination is equipped with low pressure winding, middle pressure winding, high pressure winding and pressure regulation winding, the non-excitation pressure adjustment switch is three-phase integrated structure, be placed on the oil tank of transformer end, the transmission mechanism coupling of non-excitation pressure adjustment switch and switch band.
Iron core is the three-phase and five-pole structure, and core lamination is six grades of ladder stepping bridging arrangements, has effectively reduced no-load loss and the noise of transformer; Described pressure regulation winding is sped structure, be wound on cardboard cylinder, and with the high pressure windings in series, the high-voltage leading-out wire of high pressure winding is drawn from winding overhang.
Good effect of the present utility model: when satisfying transformer non-exciting regulation, can improve effectively that transformer is high, between middle pressure winding and the ampere-turn equilibrium between the high and low pressure winding, no-load loss and the noise of transformer have effectively been reduced, improve the ampere-turn equilibrium between winding, improved the whole anti-short circuit capability of transformer.
Description of drawings
Fig. 1 is the utility model embodiment schematic diagram;
In figure: the transmission mechanism 7 of iron core 1, low pressure winding 2, middle pressure winding 3, high pressure winding 4, pressure regulation winding 5, non-excitation pressure adjustment switch 6, switch band.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further.
A kind of three winding non-excitation pressure adjustment power transformers with independent pressure regulation, the transmission mechanism 7 that comprises iron core 1, low pressure winding 2, middle pressure winding 3, high pressure winding 4, pressure regulation winding 5, non-excitation pressure adjustment switch 6 and switch band, outer concentric locking collar successively unshakable in one's determination is equipped with low pressure winding, middle pressure winding, high pressure winding and pressure regulation winding, the non-excitation pressure adjustment switch is three-phase integrated structure, be placed on the oil tank of transformer end, the transmission mechanism coupling of non-excitation pressure adjustment switch and switch band.
Iron core is the three-phase and five-pole structure, and core lamination is six grades of ladder stepping bridging arrangements, has effectively reduced no-load loss and the noise of transformer.Described pressure regulation winding is sped structure, be wound on cardboard cylinder, and with the high pressure windings in series, the high-voltage leading-out wire of high pressure winding is drawn from winding overhang.
Claims (2)
1. three winding non-excitation pressure adjustment power transformers with independent pressure regulation, it is characterized in that: the transmission mechanism (7) that comprises iron core (1), low pressure winding (2), middle pressure winding (3), high pressure winding (4), pressure regulation winding (5), non-excitation pressure adjustment switch (6) and switch band, outer concentric locking collar successively unshakable in one's determination is equipped with low pressure winding, middle pressure winding, high pressure winding and pressure regulation winding, the non-excitation pressure adjustment switch is three-phase integrated structure, be placed on the oil tank of transformer end, the transmission mechanism coupling of non-excitation pressure adjustment switch and switch band.
2. a kind of three winding non-excitation pressure adjustment power transformers with independent pressure regulation according to claim 1, it is characterized in that: unshakable in one's determination is the three-phase and five-pole structure, core lamination is six grades of ladder stepping bridging arrangements, described pressure regulation winding is sped structure, be wound on cardboard cylinder, and with the high pressure windings in series, the high-voltage leading-out wire of high pressure winding is drawn from winding overhang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717720 CN202977145U (en) | 2012-12-24 | 2012-12-24 | Independent-voltage-regulating three-winding off-circuit-regulation power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717720 CN202977145U (en) | 2012-12-24 | 2012-12-24 | Independent-voltage-regulating three-winding off-circuit-regulation power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977145U true CN202977145U (en) | 2013-06-05 |
Family
ID=48518189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717720 Expired - Lifetime CN202977145U (en) | 2012-12-24 | 2012-12-24 | Independent-voltage-regulating three-winding off-circuit-regulation power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730239A (en) * | 2013-12-25 | 2014-04-16 | 保定天威保变电气股份有限公司 | Novel three-phase-integrated autotransformer switch lead arranging method |
-
2012
- 2012-12-24 CN CN 201220717720 patent/CN202977145U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730239A (en) * | 2013-12-25 | 2014-04-16 | 保定天威保变电气股份有限公司 | Novel three-phase-integrated autotransformer switch lead arranging method |
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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 |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |