CN201976061U - Voltage regulating structure of converter transformer - Google Patents
Voltage regulating structure of converter transformer Download PDFInfo
- Publication number
- CN201976061U CN201976061U CN2011200467862U CN201120046786U CN201976061U CN 201976061 U CN201976061 U CN 201976061U CN 2011200467862 U CN2011200467862 U CN 2011200467862U CN 201120046786 U CN201120046786 U CN 201120046786U CN 201976061 U CN201976061 U CN 201976061U
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- China
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- coil
- fine tuning
- converter transformer
- coarse adjustment
- pressure adjusting
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Abstract
The utility model discloses a voltage regulating structure of a converter transformer. The voltage regulating structure comprises a valve-side coil, a line-side coil and voltage regulating coils all arranged inside a voltage regulating structure. The voltage regulating structure is characterized in that the voltage regulating coils include a crude regulating coil and a fine regulating coil, and all the coils are arranged on the outer side of an iron core according to the sequence of the fine regulating coil, the crude regulating coil, the line-side coil, and the valve-side coil. When maximum plus tapping is performed, the line-side coil is not connected to the voltage regulating coils; when the maximum plus tapping is performed, both the crude regulating coil and the fine regulating coil are connected in series to the line-side coil from the forward direction; and when principal tapping is performed, the fine regulating coil is partially connected in series to the line-side coil from the forward direction.
Description
Technical field
The utility model relates to a kind of pressure adjusting structure of converter transformer, is applicable to ± adjusting of the voltage on line side of 500kV converter transformer.
Background technology
The voltage on line side of converter transformer carries out voltage-regulation according to the instructions for use needs, and existing ± 500kV converter transformer all adopts the mode of positive-negative voltage-regulation, promptly places valve lateral coil, net lateral coil and voltage regulation coil at the converter transformer fuel tank internal.When voltage on line side need be regulated, the connected mode of net lateral coil and voltage regulation coil was:
During minus tapping, revert all inserts voltage regulation coil;
During plus tapping, all forwards insert voltage regulation coils;
During specified tap, do not insert voltage regulation coil, or part just connects (or reversal connection) voltage regulation coil as required.
, be meant when oppositely inserting voltage regulation coil that the voltage of voltage regulation coil is opposite with net lateral coil voltage herein, during connection, voltage subtracts each other.Forward is meant that the voltage of voltage regulation coil is identical with net lateral coil voltage when inserting voltage regulation coil, during connection, and the voltage addition.
When pressure regulation progression more for a long time, existing converter transformer positive and negative pressure regulating manner is all higher aspect no-load loss, load loss, more obvious during especially minus tapping, transformer material consumption is also big.
Summary of the invention
The purpose of this utility model provides a kind of pressure adjusting structure of novel converter transformer, can solve positive and negative pressure regulating manner existing problem aspect no-load loss, load loss.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of pressure adjusting structure of converter transformer, comprise the valve lateral coil, net lateral coil and the voltage regulation coil that are arranged in the oil tank of transformer, it is characterized in that, described voltage regulation coil is divided into coarse adjustment coil and fine tuning coil, each coil is fine tuning coil, coarse adjustment coil, net lateral coil, valve lateral coil putting in order of the unshakable in one's determination outside, during minus tapping, the net lateral coil does not insert voltage regulation coil; During plus tapping, coarse adjustment coil and the whole forwards of fine tuning coil seal in the net lateral coil; During specified tap, fine tuning coiler part forward seals in the net lateral coil.
In the such scheme, described fine tuning coil adopts the coiling of many transposed conductors drum type brake mode in parallel.
Described coarse adjustment coil is a self-adhesion semihard copper transposed conductor, adopts the coiling of single transposed conductor drum type brake mode at the outer surface of fine tuning coil.Described coarse adjustment coil is identical with the number of turn of fine tuning coil.Described thickness modulation coil end is equipped with static board.
According to pressure adjusting structure of the present utility model, when pressure regulation progression more for a long time, no matter be at no-load loss, load loss or on material cost, thickness is transferred all has advantage than positive and negative accent.Positive and negative in addition accent scheme pressure regulation lead-in wire mode current maxima is when minus tapping, and thickness is transferred scheme, and the maximum of pressure regulation lead-in wire mode electric current is when plus tapping.Thickness transfers the mode resultant current littler than positive and negative accent mode resultant current, considers that from control structure part local overheating face thickness is transferred also than the easier realization of positive and negative accent.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and the specific embodiments.
Fig. 1 is a structural representation of the present utility model.Among the figure: 1, iron core; 2, fine tuning coil; 3, coarse adjustment coil; 4, net lateral coil; 5, valve lateral coil; 6, inner wall of oil tank.
Fig. 2 is the net lateral coil among Fig. 1 and the elementary diagram of voltage regulation coil.A is a net side head end among the figure; X is a neutral point.
Embodiment
As shown in Figure 1, a kind of pressure adjusting structure of converter transformer, comprise the valve lateral coil 5, net lateral coil 4 and the voltage regulation coil that are arranged in the oil tank of transformer, voltage regulation coil is divided into coarse adjustment coil 3 and fine tuning coil 2, and each coil is fine tuning coil 2, coarse adjustment coil 3, net lateral coil 4, valve lateral coil 5 putting in order of 1 outside unshakable in one's determination.Slightly, the fine tuning end winding all has static board (not drawing among the figure), cooperates with insulation moulding square ring, can make Electric Field Distribution even.
As shown in Figure 2, the utility model thickness transfers the connection principle of mode to be:
During minus tapping, do not insert voltage regulation coil, (Fig. 2 a) for 4 isolated operations of net lateral coil;
During plus tapping, coarse adjustment coil 3 and fine tuning coil 2 whole forwards seal in net lateral coil 4 (Fig. 2 b);
During specified tap, fine tuning coil 2 part forwards seal in net lateral coil 4 (Fig. 2 c).
Claims (5)
1. the pressure adjusting structure of a converter transformer, comprise the valve lateral coil, net lateral coil and the voltage regulation coil that are arranged in the oil tank of transformer, it is characterized in that, described voltage regulation coil is divided into coarse adjustment coil and fine tuning coil, each coil is fine tuning coil, coarse adjustment coil, net lateral coil, valve lateral coil putting in order of the unshakable in one's determination outside, during minus tapping, the net lateral coil does not insert voltage regulation coil; During plus tapping, coarse adjustment coil and the whole forwards of fine tuning coil seal in the net lateral coil; During specified tap, fine tuning coiler part forward seals in the net lateral coil.
2. the pressure adjusting structure of converter transformer as claimed in claim 1 is characterized in that, described fine tuning coil adopts the coiling of many transposed conductors drum type brake mode in parallel.
3. the pressure adjusting structure of converter transformer as claimed in claim 1 is characterized in that, described coarse adjustment coil is a self-adhesion semihard copper transposed conductor, adopts the coiling of single transposed conductor drum type brake mode at the outer surface of fine tuning coil.
4. the pressure adjusting structure of converter transformer as claimed in claim 1 is characterized in that, described coarse adjustment coil is identical with the number of turn of fine tuning coil.
5. the pressure adjusting structure of converter transformer as claimed in claim 1 is characterized in that, described thick, fine tuning end winding is equipped with static board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200467862U CN201976061U (en) | 2011-02-23 | 2011-02-23 | Voltage regulating structure of converter transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200467862U CN201976061U (en) | 2011-02-23 | 2011-02-23 | Voltage regulating structure of converter transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201976061U true CN201976061U (en) | 2011-09-14 |
Family
ID=44581160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200467862U Expired - Lifetime CN201976061U (en) | 2011-02-23 | 2011-02-23 | Voltage regulating structure of converter transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201976061U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446622A (en) * | 2011-12-12 | 2012-05-09 | 保定天威集团有限公司 | Loaded voltage-regulating electric transformer |
| CN103956256A (en) * | 2014-04-30 | 2014-07-30 | 山东达驰电气有限公司 | Layout structure of transformer windings |
| CN109599257A (en) * | 2018-12-24 | 2019-04-09 | 上海良治电器技术有限公司 | Input adjustable transformer |
| CN110288883A (en) * | 2019-05-10 | 2019-09-27 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of converter power transformer fault simulation platform and method |
-
2011
- 2011-02-23 CN CN2011200467862U patent/CN201976061U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446622A (en) * | 2011-12-12 | 2012-05-09 | 保定天威集团有限公司 | Loaded voltage-regulating electric transformer |
| CN103956256A (en) * | 2014-04-30 | 2014-07-30 | 山东达驰电气有限公司 | Layout structure of transformer windings |
| CN103956256B (en) * | 2014-04-30 | 2016-09-28 | 山东达驰电气有限公司 | A kind of Transformer Winding arrangement |
| CN109599257A (en) * | 2018-12-24 | 2019-04-09 | 上海良治电器技术有限公司 | Input adjustable transformer |
| CN110288883A (en) * | 2019-05-10 | 2019-09-27 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of converter power transformer fault simulation platform and 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: 20110914 |
|
| CX01 | Expiry of patent term |