CN101192467A - Amorphous alloy ground transformer body structure - Google Patents
Amorphous alloy ground transformer body structure Download PDFInfo
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- CN101192467A CN101192467A CNA2006101186516A CN200610118651A CN101192467A CN 101192467 A CN101192467 A CN 101192467A CN A2006101186516 A CNA2006101186516 A CN A2006101186516A CN 200610118651 A CN200610118651 A CN 200610118651A CN 101192467 A CN101192467 A CN 101192467A
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Abstract
The invention discloses an amorphous alloy grounding transformer body structure, which comprises a three-frame three-limb amorphous alloy iron core, a high-low tension coil nested on the iron core pillar which is coaxial layered arranged that the low tension coil is on the inner and the high tension coil is on the outer, further four combined clamping pieces are included that are arranged on the upper and lower ends and the two sides of the high-low tension coil. The iron core is wrapped by the amorphous alloy belt material, and the cross section of the iron core takes on a rectangular shape. The high-low tension coil is an integral rectangular coil, an insulating framework is arranged in the low tension coil, and the high tension coil is divided into two sections of coils with the same number of turns in the radial direction. The three-frame three-limb amorphous alloy iron core is hanged on the high-low tension coil, and the four combined clamping pieces clamp a three-phase coils firmly respectively along the axial direction and the horizontal direction through an insulating pad and an insulating board, thereby making the three-phase coils as an firm integral body. The invention has the advantages of low no-load losses, small no-load current and a firm body structure, the coil can bare the impact of the fault current of the system and the iron core can not be affected by the electromotive force of the coil.
Description
Technical field
The present invention relates to a kind of machine body structure of transformer, relate in particular to the machine body structure of amorphous alloy ground transformer.
Background technology
Grounding transformer is used in the three-phase electrical power system of neutral point insulation, it for electric power system provide one can ground connection artificial neutral point.When electrical network generation single phase ground fault, but the capacitance current of inductive current compensate for failed point that flows through Zero-sequence Impedance for Earthing Transformer and insert the arc suppression coil of neutral point circuit, thus extinguish the electric arc of arc grounding, prevent the superpotential generation of locking system.When electric power system normally moves, insert the common transformer of the grounding transformer of electrical network for a long time just as a no-load running, the main electric energy that consumes is exactly its no-load loss and the reactive loss that causes of no-load current thereof.Up to the present, the iron core of the grounding transformer that China is all is made by silicon steel sheet, and with regard to the three-phase electrical power system of national neutral point insulation, the electric energy that is consumed because of the no-load loss and the no-load current of grounding transformer still is appreciable.
Summary of the invention
The technical problem to be solved in the present invention is to do the improvement of energy saving at above-mentioned prior art, and a kind of machine body structure that can reduce the firm amorphous alloy ground transformer of no-load loss, no-load current and device body significantly is provided.
For solving the problems of the technologies described above, the present invention adopts a kind of machine body structure of amorphous alloy ground transformer, this transformer body comprises the three-frame and three pole amorphous alloy iron core, is sleeved on the high-voltage coil and low-voltage coil with low-voltage coil, high-tension coil coaxial laminar layout outside on the core limb, also comprise four combination folders, promptly be located at the upper and lower folder of high-voltage coil and low-voltage coil upper and lower side and the end folder of two side column high-tension coil outer ends.Described iron core is rolled by amorphous alloy strips and forms, and the core limb cross section is rectangular, the square coil that described high-voltage coil and low-voltage coil is as a whole, and described three-frame and three pole amorphous alloy iron core is suspended on the high-voltage coil and low-voltage coil.
The machine body structure of above-mentioned amorphous alloy ground transformer, wherein, the inboard of described low-voltage coil also is provided with insulation framework, and this insulation framework is the rectangle cylindrical shell with the core limb cross-sections match.Separate with main insulation between described high-tension coil and the low-voltage coil, described high-tension coil is provided with section insulation by two sections coils that radially are divided into equal turn numbers between these two sections high-tension coils.
The machine body structure of above-mentioned amorphous alloy ground transformer, wherein, between the two-phase high-tension coil, be provided with insulating barrier, between post high-tension coil outer end, both sides and end folder, be provided with insulation board, be furnished with several cross-over blocks respectively between described lower clamping piece and the high-voltage coil and low-voltage coil lower end and between described upper clamping piece and high-voltage coil and low-voltage coil upper end, on described, lower clamping piece clamps three-phase coil vertically by cross-over block, two end folders clamp three-phase coil by the insulation board along continuous straight runs, and it is a solid integral body that described four combination folders clamp three-phase coil at both direction in length and breadth.
Advantage of the present invention is that no-load loss is low, and no-load current is little, has good energy-saving effect; The solid compact and reasonable of machine body structure, the mechanical Strength for Winding height, can bear the impact of the fault current of system's single-phase earthing initiation, simultaneously because the protective action of insulation framework, can eliminate the influence of the coil that electric power the produced extruding amorphous alloy core of fault current, have constant good magnetic performance to guarantee iron core.
Description of drawings
Fig. 1 is the structural representation of preferred embodiment of the machine body structure of amorphous alloy ground transformer of the present invention.
Embodiment
See also Fig. 1, the machine body structure of the amorphous alloy ground transformer of the present invention shown in the figure, comprise iron core 1, high-voltage coil and low-voltage coil 2, upper and lower folder 3, end folder 4, cross-over block 5, insulating barrier 7 and insulation board 8,1 usefulness amorphous alloy strips unshakable in one's determination is reeled and is formed, adopt the three-frame and three pole structure of rectangle heart column section, according to the size of capacity, unshakable in one's determination 1 can form by a row, two rows or three rows' three-frame and three pole amorphous alloy is unshakable in one's determination; High-voltage coil and low-voltage coil 2 is to turn to whole square coil, and high-voltage coil and low-voltage coil 2 is arranged at interior, high-tension coil coaxial laminar outside with low-voltage coil, is provided with insulation framework 6 in the low-voltage coil, and insulation framework 6 is the rectangle cylindrical shell with the core limb cross-sections match; Low-voltage coil with Copper Foil or copper conductor directly on insulation framework 6, low-voltage coil outer surface parcel main insulation (not shown), use then copper conductor at the main insulation outer surface around high-tension coil, high-tension coil is by radially being divided into inside and outside two sections of equal turn numbers, liner has the section insulation (not shown) between two sections high-tension coils, and three-phase high-voltage coil and low-voltage coil 2 is sleeved on the three-frame and three pole amorphous alloy iron core.
Pad stretching with insulating barrier 7 between the two-phase high-tension coil, insulation board 8 is located at the outer end that is positioned at device body both sides high-tension coil, be furnished with cross-over block 5 respectively between lower clamping piece 3 and high-voltage coil and low-voltage coil 2 lower ends and between upper clamping piece 3 and high-voltage coil and low-voltage coil 2 upper ends, yoke is suspended on the high-voltage coil and low-voltage coil 2 on the described amorphous alloy core 1, is provided with the core insulation (not shown) between iron yoke and the coil.
Folder from top to bottom 3 clamps three-phase coil vertically by cross-over block 5, and two end folders 4 clamp the three-phase coil along continuous straight runs by insulation board 8, and it is a solid integral body that four combination folders 3,4 clamp three-phase coil at both direction in length and breadth.
The three-phase low-voltage coil is pressed the yn connection in the amorphous alloy ground transformer of the present invention, by the low pressure porcelain bushing o, a, four terminals of b, c is guided to the station power supply of fuel tank outside as transformer station.Six sections high-tension coils of three-phase are pressed ZN and are connect, and by the high voltage porcelain bushing pipe O, A, four terminals of B, C are guided to the fuel tank outside so that be connected with the main transformer and the arc suppression coil (or earth resistance) of transformer station.
Claims (3)
1. the machine body structure of an amorphous alloy ground transformer, it is characterized in that, this transformer body comprises the three-frame and three pole amorphous alloy iron core, be sleeved on the core limb with low-voltage coil interior, the high-voltage coil and low-voltage coil that high-tension coil coaxial laminar is outside arranged, also comprise four combination folders, promptly be located at the high-voltage coil and low-voltage coil upper and lower side on, the end folder of lower clamping piece and two side column high-tension coil outer ends, described iron core is rolled by amorphous alloy strips and forms, the core limb cross section is rectangular, the square coil that described high-voltage coil and low-voltage coil is as a whole, described three-frame and three pole amorphous alloy iron core is suspended on the high-voltage coil and low-voltage coil.
2. the machine body structure of amorphous alloy ground transformer according to claim 1, it is characterized in that, the inboard of described low-voltage coil also is provided with insulation framework, this insulation framework is the rectangle cylindrical shell with the core limb cross-sections match, separate with main insulation between described high-tension coil and the low-voltage coil, described high-tension coil is provided with section insulation by two sections coils that radially are divided into equal turn numbers between these two sections high-tension coils.
3. according to the machine body structure of claim 1 and 2 described amorphous alloy ground transformers, it is characterized in that, between the two-phase high-tension coil, be provided with insulating barrier, between post high-tension coil outer end, both sides and end folder, be provided with insulation board, be furnished with several cross-over blocks respectively between described lower clamping piece and the high-voltage coil and low-voltage coil lower end and between described upper clamping piece and high-voltage coil and low-voltage coil upper end, on described, lower clamping piece clamps three-phase coil vertically by cross-over block, two end folders clamp three-phase coil by the insulation board along continuous straight runs, and it is a solid integral body that described four combination folders clamp three-phase coil at both direction in length and breadth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101186516A CN101192467B (en) | 2006-11-22 | 2006-11-22 | Amorphous alloy ground transformer body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101186516A CN101192467B (en) | 2006-11-22 | 2006-11-22 | Amorphous alloy ground transformer body structure |
Publications (2)
| Publication Number | Publication Date |
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| CN101192467A true CN101192467A (en) | 2008-06-04 |
| CN101192467B CN101192467B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101186516A Active CN101192467B (en) | 2006-11-22 | 2006-11-22 | Amorphous alloy ground transformer body structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013317A (en) * | 2010-07-12 | 2011-04-13 | 吴江市变压器厂有限公司 | Reshaping clamp of single-phase rectangular open coiled iron core windings |
| CN101388279B (en) * | 2008-07-11 | 2011-08-24 | 中国科学院电工研究所 | Body of shell type amorphous alloy transformer |
| CN103177855A (en) * | 2013-04-19 | 2013-06-26 | 镇江天力变压器有限公司 | Clamp piece for assembling oil immersed type amorphous alloy transformer |
| CN104992823A (en) * | 2015-07-20 | 2015-10-21 | 国网辽宁省电力有限公司鞍山供电公司 | Integral connection method and apparatus for grounding transformer and arc suppression coil |
| CN106158302A (en) * | 2015-04-17 | 2016-11-23 | 上海飞晶电气股份有限公司 | A kind of combined mechanism for eliminating amorphous transformer discharging sound |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508365Y (en) * | 2001-11-30 | 2002-08-28 | 上海置信电气股份有限公司 | Amorphous alloy transformer body structure |
| CN100498991C (en) * | 2004-12-03 | 2009-06-10 | 上海置信电气股份有限公司 | Structure of amorphous alloy iron core dry distribution transformer body |
| CN201007940Y (en) * | 2006-11-22 | 2008-01-16 | 上海置信电气非晶有限公司 | Device structure of amorphous alloy grounding transformer |
-
2006
- 2006-11-22 CN CN2006101186516A patent/CN101192467B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388279B (en) * | 2008-07-11 | 2011-08-24 | 中国科学院电工研究所 | Body of shell type amorphous alloy transformer |
| CN102013317A (en) * | 2010-07-12 | 2011-04-13 | 吴江市变压器厂有限公司 | Reshaping clamp of single-phase rectangular open coiled iron core windings |
| CN102013317B (en) * | 2010-07-12 | 2012-06-27 | 吴江市变压器厂有限公司 | Reshaping clamp of single-phase rectangular open coiled iron core windings |
| CN103177855A (en) * | 2013-04-19 | 2013-06-26 | 镇江天力变压器有限公司 | Clamp piece for assembling oil immersed type amorphous alloy transformer |
| CN106158302A (en) * | 2015-04-17 | 2016-11-23 | 上海飞晶电气股份有限公司 | A kind of combined mechanism for eliminating amorphous transformer discharging sound |
| CN104992823A (en) * | 2015-07-20 | 2015-10-21 | 国网辽宁省电力有限公司鞍山供电公司 | Integral connection method and apparatus for grounding transformer and arc suppression coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101192467B (en) | 2011-09-21 |
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