CN201698881U - On-load voltage regulating structure of 110kV power transformer - Google Patents
On-load voltage regulating structure of 110kV power transformer Download PDFInfo
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- CN201698881U CN201698881U CN2010290441155U CN201029044115U CN201698881U CN 201698881 U CN201698881 U CN 201698881U CN 2010290441155 U CN2010290441155 U CN 2010290441155U CN 201029044115 U CN201029044115 U CN 201029044115U CN 201698881 U CN201698881 U CN 201698881U
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Abstract
The utility model discloses an on-load voltage regulating structure of an 110kV power transformer, comprising a voltage regulating switch, a coarse regulating coil and a fine regulating coil, wherein the coarse regulating coil and the fine regulating coil are both in cylindrical structures, and the middles thereof are separated by using a stay; a tap of the upper end part of the coarse regulating coil and a tap of the lower end part of a high voltage basic coil of the power transformer are connected to the negative position of a switch; a tap of the lower end part of the coarse regulating coil is connected with the positive position of the switch; and a tap of the upper end part of the fine regulating coil is connected with a movable tap of the switch, and the positive position or the negative position of the switch is selected by the movable tap through a selector. The voltage regulating structure can solve the defect that the positive-negative voltage regulating structure has large load loss by adopting the voltage coarse-fine regulating structure, and enhances the impact resisting ability; the on-load voltage regulating structure of the 110kV power transformer is convenient to produce, has superior technical performance and economic performance to those of the traditional concentric structure; and the maximal load loss of a transformer adopting the voltage coarse-fine regulating structure can be reduced by 20 percent, and the cost of the transformer can be saved.
Description
Technical field:
The utility model relates to a kind of 110kV on-load voltage regulation power transformer, specifically is a kind of pressure adjusting structure.
Background technology:
Because 110kV on-load voltage regulation power transformer is generally 110kV ± 8 * 1.25%, so independent voltage regulation coil need be set; General on-load voltage regulating switch is selected positive-negative voltage-regulation for use, number of turn when the basic coil turn of high pressure is specified tap, and the voltage regulation coil number of turn is 8 grades of pressure regulation numbers of turn.This voltage regulating mode advantage is simple in structure, and transformer load loss was about 1.2 times of specified tap when shortcoming was minimum tap, and voltage regulation coil impact resistance when minus tapping is poor, and its principle as shown in Figure 2.
Summary of the invention:
The purpose of this utility model is that to solve transformer transformer load loss when minimum tap big, and the difficult point problem of voltage regulation coil impact resistance difference when minus tapping creates favorable conditions for transformer station and enterprise customer reduce transformer energy consumption.
The utility model is achieved in that a kind of 110kV power transformer on-load voltage regulation structure, comprise tap changer, coarse adjustment coil and fine tuning coil, described coarse adjustment coil and fine tuning coil are cylinder mode, and it is middle isolated with stay, described coarse adjustment coil upper end portion lifts one's head and the negative retaining that is connected to switch is together lifted one's head in the basic coil of power transformer high pressure bottom, the just retaining that is connected to switch is lifted one's head in the bottom of described coarse adjustment coil, lift one's head and be connected to the moving of switch and lift one's head in the upper end of described fine tuning coil, by this moving just retaining or negative retaining of lifting one's head by the selector selector switch.
Coarse and fine voltage regulation adopts coarse adjustment coil and fine tuning coil to separate coiling, and the cylinder mode of coarse adjustment coil and the equal adopting process maturation of fine tuning coil separates with the thick stay of 6mm between two coils, not only plays insulating effect but also play thermolysis; Coarse adjustment coil and fine tuning coil be all the same with high-voltage coil and low-voltage coil adopt a left side around to, lifting one's head in the upper end of coarse adjustment coil and lifts one's head "-" (bear) that is connected to switch together and keep off in the basic coil of high pressure bottom, "+" (just) retaining that is connected to switch is lifted one's head in the bottom of coarse adjustment coil, the upper end of fine tuning coil lift one's head " 9 " be connected to the moving of switch and lift one's head, by this moving "+" retaining or "-" retaining of lifting one's head by the selector selector switch.
The invention effect: the utility model pressure adjusting structure adopts the coarse and fine voltage regulation structure, can solve the big shortcoming of load loss of positive-negative voltage-regulation structure, and strengthens impact resistance.The utility model is convenient to produce, and technical performance and economic performance are better than traditional concentric type structure.Adopt the transformer maximum load loss of coarse and fine voltage regulation structure can reduce by 20%, every of transformer cost can be saved 1～20,000 yuan.
Description of drawings:
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is existing pressure adjusting structure schematic diagram.
Wherein, 1-9 is the fine tuning coil end, and 11 are the coarse adjustment coil, and 12 are the fine tuning coil, and 13 is the basic coil of high pressure, and O is the high pressure neutral point, and A, B, C are high pressure three-phase line end.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, coarse and fine voltage regulation adopts coarse adjustment coil 11 and the 12 separately coilings of fine tuning coil, the cylinder mode of coarse adjustment coil 11 and fine tuning coil 12 equal adopting process maturations, separate with the thick stay of 6mm between two coils, not only play insulating effect but also play thermolysis; Coarse adjustment coil 11 and fine tuning coil 12 be all the same with the basic coil of high-low pressure adopt a left side around to, lifting one's head in the upper end of coarse adjustment coil 11 and lifts one's head "-" (bear) that is connected to switch together and keep off in the basic coil of high pressure 13 bottoms, "+" (just) retaining that is connected to switch is lifted one's head in the bottom of coarse adjustment coil, lift one's head and 9 be connected to the moving of switch and lift one's head in the upper end of fine tuning coil, by this moving "+" retaining or "-" retaining of lifting one's head by the selector selector switch.
Claims (1)
1. 110kV power transformer on-load voltage regulation structure, it is characterized in that: comprise tap changer, coarse adjustment coil and fine tuning coil, described coarse adjustment coil and fine tuning coil are cylinder mode, and it is middle isolated with stay, described coarse adjustment coil upper end portion lifts one's head and the negative retaining that is connected to switch is together lifted one's head in the basic coil of power transformer high pressure bottom, the just retaining that is connected to switch is lifted one's head in the bottom of described coarse adjustment coil, lift one's head and be connected to the moving of switch and lift one's head in the upper end of described fine tuning coil, by this moving just retaining or negative retaining of lifting one's head by the selector selector switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010290441155U CN201698881U (en) | 2010-02-04 | 2010-02-04 | On-load voltage regulating structure of 110kV power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010290441155U CN201698881U (en) | 2010-02-04 | 2010-02-04 | On-load voltage regulating structure of 110kV power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201698881U true CN201698881U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010290441155U Expired - Fee Related CN201698881U (en) | 2010-02-04 | 2010-02-04 | On-load voltage regulating structure of 110kV power transformer |
Country Status (1)
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| CN (1) | CN201698881U (en) |
Cited By (7)
| 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 |
| CN103280299A (en) * | 2013-05-28 | 2013-09-04 | 特变电工沈阳变压器集团有限公司 | Transformer regulating winding arrangement structure and winding method |
| CN103515071A (en) * | 2013-09-23 | 2014-01-15 | 保定保菱变压器有限公司 | High-voltage coarse and fine regulation on-load voltage regulation power transformer |
| CN104752042A (en) * | 2013-12-26 | 2015-07-01 | 特变电工沈阳变压器集团有限公司 | Clearance iron core reactor with load switch or no-load switch and adjusting method thereof |
| CN106920656A (en) * | 2015-12-25 | 2017-07-04 | 特变电工沈阳变压器集团有限公司 | A kind of auto-transformer and its pressure regulation method with voltage regulation coil |
| CN107546010A (en) * | 2017-08-16 | 2018-01-05 | 芜湖市凯鑫避雷器有限责任公司 | A kind of transformer regulating winding construction |
| CN107978439A (en) * | 2018-01-02 | 2018-05-01 | 北华大学 | A kind of winding and pin configuration that can increase ore heat furnace transformer and smelt scope |
-
2010
- 2010-02-04 CN CN2010290441155U patent/CN201698881U/en not_active Expired - Fee Related
Cited By (9)
| 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 |
| CN103280299A (en) * | 2013-05-28 | 2013-09-04 | 特变电工沈阳变压器集团有限公司 | Transformer regulating winding arrangement structure and winding method |
| CN103515071A (en) * | 2013-09-23 | 2014-01-15 | 保定保菱变压器有限公司 | High-voltage coarse and fine regulation on-load voltage regulation power transformer |
| CN103515071B (en) * | 2013-09-23 | 2015-09-02 | 保定保菱变压器有限公司 | A kind of high pressure raw fine regulation on-load voltage regulation |
| CN104752042A (en) * | 2013-12-26 | 2015-07-01 | 特变电工沈阳变压器集团有限公司 | Clearance iron core reactor with load switch or no-load switch and adjusting method thereof |
| CN106920656A (en) * | 2015-12-25 | 2017-07-04 | 特变电工沈阳变压器集团有限公司 | A kind of auto-transformer and its pressure regulation method with voltage regulation coil |
| CN106920656B (en) * | 2015-12-25 | 2019-02-19 | 特变电工沈阳变压器集团有限公司 | A kind of auto-transformer and its pressure regulation method with voltage regulation coil |
| CN107546010A (en) * | 2017-08-16 | 2018-01-05 | 芜湖市凯鑫避雷器有限责任公司 | A kind of transformer regulating winding construction |
| CN107978439A (en) * | 2018-01-02 | 2018-05-01 | 北华大学 | A kind of winding and pin configuration that can increase ore heat furnace transformer and smelt scope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20140204 |