CN201749775U - Ultra-large capacitance splitting transformer - Google Patents
Ultra-large capacitance splitting transformer Download PDFInfo
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- CN201749775U CN201749775U CN 201020276113 CN201020276113U CN201749775U CN 201749775 U CN201749775 U CN 201749775U CN 201020276113 CN201020276113 CN 201020276113 CN 201020276113 U CN201020276113 U CN 201020276113U CN 201749775 U CN201749775 U CN 201749775U
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Abstract
The utility model discloses an ultra-large capacitance splitting transformer which comprises a voltage-stabilizing coil, a low-voltage coil and a high-voltage coil which are respectively wound on respective frame and are sheathed together from inside to outside; a plurality of supporting bars and assistant supporting bars which are evenly distributed are respectively clamped between the voltage-stabilizing coil, the low-voltage coil and the high-voltage coil and respective frame; the discharging head of the voltage-stabilizing coil, the discharging head of the low-voltage coil and the discharging head of the high-voltage coil are bound transversely and vertically in a multi-point and multi-cake way, and each frame adopts a T4 cardboard cylinder. By adopting the structure, the splitting transformer improves the short circuit resistance, overcomes the problem of the eddy-current loss of the axial splitting transformer, realizes the adoption of the split structure for the ultra-large capacitance transformer, and causes the performance to be more stable during running.
Description
Technical field
The utility model relates to a kind of axial split transformer.
Background technology
The transformer of axial split is worked as a low pressure winding open circuit when operation, (when partly passing through operation) ampere-turn is extremely uneven when another low pressure and high-voltage operation, laterally leakage flux causes that thereby the eddy current loss of lead causes local overheating and bigger electric power, and when a side low-voltage coil produces earth fault, have this side winding of very big current direction, produce huge short circuit mechanical stress in the axial direction, and big more this phenomenon of capacity is remarkable more, so the maximum 63MVA of the capacity of given transformer with split winding in present China national standard.
If the transformer with split winding of design vast capacity meets with a series of difficulties such as eddy current loss problem, local overheating problem, electric power problem easily, and then causes the infringement to transformer, thereby makes the product can not safe and reliable operation.
Summary of the invention
For solving the problem of above existence, the utility model provides a kind of vast capacity transformer with split winding, and its technical scheme of taking is:
Voltage stabilizing coil, low-voltage coil and high-tension coil that this transformer comprises on the skeleton that is wound on respectively separately and connects together from inside to outside, be connected with equally distributed stay and auxiliary stay between voltage stabilizing coil, low-voltage coil and high-tension coil and the skeleton separately respectively, voltage stabilizing winding protruding head, low-voltage coil are lifted one's head and high-tension coil is lifted one's head and adopted binding structure anyhow, and skeleton adopts the T4 cardboard cylinder.
Be lined with insulating paper respectively between voltage stabilizing coil, low-voltage coil and high-tension coil and each the self-corresponding stay.
Coiling low-voltage coil and high-tension coil, lead adopt the semihard copper conductor.
When replacing, voltage stabilizing coil, low-voltage coil and high-tension coil adopt transposed conductor.
The beneficial effects of the utility model are as follows:
1, this transformer adopts the T4 cardboard on raw material, and through pre-closeization, unhairing, punching postforming, compares with the cardboard 100/00 of raw material employing in the past, cushion block density height, and decrement is little, the axial play of the principal vertical line circle that can effectively prevent.
2, coil adopts the T4 cardboard cylinder to do skeleton, makes voltage stabilizing coil, low-voltage coil and high-tension coil all do support by the T4 cardboard cylinder.Increase auxiliary stay at the T4 cardboard cylinder simultaneously, bear at interior winding under the situation of big radially short-circuit force effect, by increasing winding inner support stay quantity, not only reduced the span of wire turn segmental arc, and improved the winding roundness, these have all effectively improved interior winding and have born the radially ability of short-circuit force effect, have improved anti-short circuit capability greatly.
3, the colligation anyhow of the many cakes of multiple spot is adopted at the winding protruding head position, has effectively improved anti-short circuit capability;
4, the insulating paper between the insulating paper of the cushioning 1mm of internal coil diameter place the most inboard winding of thickening and the stay prevents the possibility that wire insulation is damaged by stay;
5, the lead of coiling high and low pressure coil adopts the semihard copper conductor, compares the ability that effectively raises the radial and axial anti-mechanical force of coil with the coil of common oxygen-free cupreous coiling.
6, winding adopts transposed conductor switch-on coil when coil replaces of making in advance, and has improved lead hardness.
Therefore this transformer has the advantages that simplicity of design is reasonable, anti-short circuit capability is strong, safe and reliable to operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As depicted in figs. 1 and 2, coil rack 1 adopts the T4 cardboard cylinder, it is voltage stabilizing coil 2, it is on the paper web made of the cardboard of T4 that low-voltage coil 3, high-tension coil 4 are wound on material respectively, again its order according to voltage stabilizing, low pressure, high pressure outwards is nested together from the lining after coiling is finished, makes voltage stabilizing coil, low-voltage coil and high-tension coil all do support by the T4 cardboard cylinder.Increase auxiliary stay 6 at the T4 cardboard cylinder simultaneously, auxiliary stay 6 and stay 5 even clampings are supported between voltage stabilizing coil 2, low-voltage coil 3 and high-tension coil 4 and the skeleton separately 1.Voltage stabilizing winding protruding head 7, low-voltage coil lift one's head 8 and high-tension coil lift one's head and 9 adopt binding structure 11 anyhow, carry out the colligation anyhow of the many cakes of multiple spot, promptly winding protruding head adopts multiple conducting wires and it laterally, is vertically all being had support, three-dimensional carries out colligation.The insulating paper that divides other places cushioning 1mmm between voltage stabilizing coil 2, low-voltage coil 3 and high-tension coil 4 and each the self-corresponding stay 5, the lead of coiling low-voltage coil 3 and high-tension coil 4 adopts semihard copper conductor 10, and voltage stabilizing coil 2, low-voltage coil 3 and high-tension coil 4 insert transposed conductor when replacing.Z takes big strides to carry out the constant voltage drying again one time after assembling is finished, and guarantees the axial height unanimity of each coil, has improved the transformer anti-short circuit capability.
Adopt above structure, make transformer with split winding improve anti-short circuit capability and the eddy current loss problem that has overcome the axial split transformer, realized that ultra-large capacity transformer adopts splitted construction, and made transformer with split winding performance in the process of operation of vast capacity more reliable.
Claims (4)
1. vast capacity transformer with split winding, comprise the skeleton (1) that is wound on respectively separately is last and connect together from inside to outside voltage stabilizing coil (2), low-voltage coil (3) and high-tension coil (4), it is characterized in that: be connected with equally distributed stay (5) and auxiliary stay (6) between voltage stabilizing coil (2), low-voltage coil (3) and high-tension coil (4) and the skeleton separately (1) respectively, voltage stabilizing winding protruding head (7), low-voltage coil are lifted one's head (8) and high-tension coil lift one's head (9) adopt binding structure (11) anyhow, skeleton (1) adopts the T4 cardboard cylinder.
2. vast capacity transformer with split winding according to claim 1 is characterized in that: be lined with insulating paper respectively between voltage stabilizing coil (2), low-voltage coil (3) and high-tension coil (4) and each the self-corresponding stay (5).
3. vast capacity transformer with split winding according to claim 1 is characterized in that: the lead of coiling low-voltage coil (3) and high-tension coil (4) adopts semihard copper conductor (10).
4. vast capacity transformer with split winding according to claim 1 is characterized in that: adopt transposed conductor when voltage stabilizing coil (2), low-voltage coil (3) and high-tension coil (4) replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020276113 CN201749775U (en) | 2010-07-30 | 2010-07-30 | Ultra-large capacitance splitting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020276113 CN201749775U (en) | 2010-07-30 | 2010-07-30 | Ultra-large capacitance splitting transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749775U true CN201749775U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020276113 Expired - Fee Related CN201749775U (en) | 2010-07-30 | 2010-07-30 | Ultra-large capacitance splitting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201749775U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385968A (en) * | 2011-10-31 | 2012-03-21 | 昆明理工大学 | Device for generating rotating magnetic field by interval type windings |
| CN105826054A (en) * | 2016-06-09 | 2016-08-03 | 苏州高精特专信息科技有限公司 | Dry type transformer for electricity |
| CN106449048A (en) * | 2016-12-12 | 2017-02-22 | 沈小红 | Fixing device for core of dry type transformer |
| CN106783075A (en) * | 2016-12-27 | 2017-05-31 | 江苏华鹏变压器有限公司 | A kind of novel low-voltage outside line coil structures |
| CN109741922A (en) * | 2019-01-18 | 2019-05-10 | 江苏五洲电力科技有限公司 | Low-voltage coil |
-
2010
- 2010-07-30 CN CN 201020276113 patent/CN201749775U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385968A (en) * | 2011-10-31 | 2012-03-21 | 昆明理工大学 | Device for generating rotating magnetic field by interval type windings |
| CN105826054A (en) * | 2016-06-09 | 2016-08-03 | 苏州高精特专信息科技有限公司 | Dry type transformer for electricity |
| CN106449048A (en) * | 2016-12-12 | 2017-02-22 | 沈小红 | Fixing device for core of dry type transformer |
| CN106449048B (en) * | 2016-12-12 | 2017-12-08 | 国网江西省电力公司丰城市供电分公司 | A kind of iron core fixing device of dry type |
| CN106783075A (en) * | 2016-12-27 | 2017-05-31 | 江苏华鹏变压器有限公司 | A kind of novel low-voltage outside line coil structures |
| CN106783075B (en) * | 2016-12-27 | 2019-04-30 | 江苏华鹏变压器有限公司 | A kind of low-voltage outside line coil structures |
| CN109741922A (en) * | 2019-01-18 | 2019-05-10 | 江苏五洲电力科技有限公司 | Low-voltage coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20160730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |