CN105529145A - Resin insulation dry type transformer with three-dimensional roll iron core - Google Patents
Resin insulation dry type transformer with three-dimensional roll iron core Download PDFInfo
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- CN105529145A CN105529145A CN201410520324.8A CN201410520324A CN105529145A CN 105529145 A CN105529145 A CN 105529145A CN 201410520324 A CN201410520324 A CN 201410520324A CN 105529145 A CN105529145 A CN 105529145A
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- type transformer
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Abstract
The invention discloses a resin insulation dry type transformer with a three-dimensional roll iron core. The resin insulation dry type transformer comprises a transformer base, an upper clamping part, a lower clamping part and a three-dimensional roll iron core, wherein the upper clamping part and the lower clamping part are correspondingly arranged on the transformer base up and down, and the three-dimensional roll iron core is clamped between the upper clamping part and the lower clamping part; the three-dimensional roll iron core comprises three single frames, the middle parts of the single frames are hollowed out, and the single frames are of rounded rectangle structures in shape; the three single frames are arranged and spliced together in an equilateral triangle shape three-dimensionally; each single frame is formed by continuously winding a plurality of silicon steel trapezoid material straps in sequence; a coil is wound at the joint of every two single frames respectively; each coil is integrally poured by a curing agent and is formed through heating curing; and the exterior of each coil is encapsulated by epoxy resin respectively. The resin insulation dry type transformer is provided with the three-dimensional roll iron core, and has the characteristics of energy conservation and material saving, low no-load loss, low no-load current, low noise, good electrical performance, low partial discharge value, high lightning impulse resistance, high short-circuit resistance and high mechanical strength.
Description
Technical field
The present invention relates to a kind of transformer, especially a kind of three-dimensional winding iron core resin insulating dry type transformer.
Background technology
General transformer adopts silicon steel sheet stack Calais to make iron core, and during slitting, the tailing of silicon steel sheet is more, in addition seam between each silicon steel sheet, such that iron space factor is low, magnetic resistance large, causes exciting curent, no-load loss to raise; And due to silicon steel sheet magnetostriction and there is the electromagnetic attraction produced because of leakage field between silicon steel sheet seam crossing and lamination, can iron coring vibration be caused, produce noise.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of three-dimensional winding iron core resin insulating dry type transformer, this transformer has three-dimensional winding iron core, energy-saving material, the feature that no-load loss, no-load current are low, noise is low, low, the resistance to lightning impulse ability of good electric property, partial discharge value is strong, anti-short circuit capability is strong, mechanical strength is high.
In order to solve the problems of the technologies described above, the present invention includes transformer base, the three-dimensional winding iron core that upper and lower correspondence is arranged on upper clamping piece on transformer base and lower clamping piece and is clamped between upper clamping piece and lower clamping piece, described three-dimensional winding iron core comprises middle part and is formed with hollow out and profile is three single frames of round rectangle structure, described three single frames be the split of equilateral triangle spatial arrangement together, each described single frame is formed by the some trapezoidal material strips of silicon steel successively continuous reeling respectively, the mosaic of every two described single frames is wound with coil respectively, the integrated poured curing agent of each described coil is also shaping through being heating and curing, and each described coil outer is all epoxy resin enclosed.
Single frame cross section after described winding is close to semicircle, and the cross section of three single frame mosaics is in connecing rotund accurate polygon.
Clamping is realized by multiple screw rod that draws between described upper clamping piece and lower clamping piece.
Described upper clamping piece upper end is provided with suspension ring.
Described transformer base is also provided with multiple side blown type blower fan.
Described three-dimensional winding iron core top is connected with HV Terminal and low-voltage terminal, and this three-dimensional winding iron core sidepiece is also connected with high-voltage tap termination.
The invention has the beneficial effects as follows:
1, almost can accomplish 100% utilization by cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing during silicon steel slitting, tailing is less.
2, the trapezoidal material strip winding of silicon steel can around comparatively tight and without seam, iron space factor is high, magnetic resistance is little, and exciting curent, no-load loss significantly reduce.
3, because continuous reeling can ensure that silicon steel magnetic conduction direction is consistent with actual magnetic flux direction.
4, three dimensional wound core three-phase magnetic circuit length is consistent, can accomplish three-phase magnetic circuit complete equipilibrium.
5, space utilization factor is high, and transformer adopts triangular structure, therefore volume ratio conventional transformer is little, and compact conformation, good looking appearance, floor space is little.
6, because three-dimensional winding iron core is reeled successively by the trapezoidal material strip of several silicon steel to form, between silicon strip, winding closely, the magnetic conduction direction of silicon strip and the magnetic circuit direction of iron core completely the same, vibrate little during work, the noise that folded iron core sends because magnetic circuit is discontinuous can be solved, can by noise reduction to bottom line.
7, upper and lower folder is integral type, protect whole iron core manufacture, in transportation not by external force, can effectively compress and support coils, when improve transformer sudden short circuit, anti-axial electric power obtains ability.
8, the upper and lower folder of formed steel construction, the vibration of noise in folder of effectively having drawn up, makes the noise of transformer remain on perfect condition.
9, high pressure adopts the cast structure of thin insulating, and the resin mixture of cast can be impregnated in each gap of coil completely, stops the existence in space, and partial discharge phenomenon of effectively drawing up produces, and partial discharge quantity is no more than 10pC, and most product is no more than 5pC.
10, due to the material behavior of resin, and winding is integrated poured, through be heating and curing shaping after there is excellent mechanical property, so mechanical strength is very high, prove through sudden short circuit test, resin casting dry-type transformer because of the short circuit situation that is damaged few.
11, transformer adopt band filling epoxy resin and special insulation Structured cured shaping, material settling out.Be full of cracks can not be produced because of harsh weather and difference variation.
12, due to whole coil-conductor all encapsulate by the solid insulating layer of epoxy resin, therefore moisture be difficult to invasion.
13, cost performance is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of three-dimensional winding iron core resin insulating dry type transformer of the present invention;
Fig. 2 is the structural representation of neutral body of the present invention volume iron core.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
See Fig. 1 and Fig. 2, three-dimensional winding iron core resin insulating dry type transformer of the present invention comprises transformer base 12, the three-dimensional winding iron core 10 that upper and lower correspondence is arranged on upper clamping piece 4 on transformer base 12 and lower clamping piece 11 and is clamped between upper clamping piece 4 and lower clamping piece 11, described three-dimensional winding iron core 10 comprises middle part and is formed with hollow out and profile is three single frames of round rectangle structure, described three single frames be the split of equilateral triangle spatial arrangement together, each described single frame is formed by the some trapezoidal material strips of silicon steel successively continuous reeling respectively, the mosaic of every two described single frames is wound with coil 6 respectively, the integrated poured curing agent of each described coil 6 is also shaping through being heating and curing, and each described coil 6 outside is all epoxy resin enclosed.
Single frame cross section after described winding is close to semicircle, and the cross section of three single frame mosaics is in connecing rotund accurate polygon.
Clamping is realized by multiple screw rod 8 that draws between described upper clamping piece 4 and lower clamping piece 11.
Described upper clamping piece 4 upper end is provided with suspension ring 2.
Described transformer base 12 is also provided with multiple side blown type blower fan 9.
Described three-dimensional winding iron core 10 top is connected with HV Terminal 1 and low-voltage terminal 3, and this three-dimensional winding iron core 10 sidepiece is also connected with high-voltage tap termination 7.
Three-dimensional winding iron core resin insulating dry type transformer of the present invention has three-dimensional winding iron core, energy-saving material, the feature that no-load loss, no-load current are low, noise is low, low, the resistance to lightning impulse ability of good electric property, partial discharge value is strong, anti-short circuit capability is strong, mechanical strength is high.
In sum, content of the present invention is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present invention, but these embodiments all comprise within the scope of the present invention.
Claims (6)
1. a three-dimensional winding iron core resin insulating dry type transformer, it is characterized in that: comprise transformer base (12), the three-dimensional winding iron core (10) that upper and lower correspondence is arranged on upper clamping piece (4) on transformer base (12) and lower clamping piece (11) and is clamped between upper clamping piece (4) and lower clamping piece (11), described three-dimensional winding iron core (10) comprises middle part and is formed with hollow out and profile is three single frames of round rectangle structure, described three single frames be the split of equilateral triangle spatial arrangement together, each described single frame is formed by the some trapezoidal material strips of silicon steel successively continuous reeling respectively, the mosaic of every two described single frames is wound with coil (6) respectively, the integrated poured curing agent of each described coil (6) is also shaping through being heating and curing, and each described coil (6) outside is all epoxy resin enclosed.
2. according to three-dimensional winding iron core resin insulating dry type transformer according to claim 1, it is characterized in that: the single frame cross section after described winding is close to semicircle, and the cross section of three single frame mosaics is in connecing rotund accurate polygon.
3. according to three-dimensional winding iron core resin insulating dry type transformer according to claim 1, it is characterized in that: between described upper clamping piece (4) and lower clamping piece (11), realize clamping by multiple screw rod (8) that draws.
4. according to three-dimensional winding iron core resin insulating dry type transformer according to claim 1, it is characterized in that: described upper clamping piece (4) upper end is provided with suspension ring (2).
5. according to three-dimensional winding iron core resin insulating dry type transformer according to claim 1, it is characterized in that: described transformer base (12) is also provided with multiple side blown type blower fan (9).
6. according to the three-dimensional winding iron core resin insulating dry type transformer according to any one of claim 1-5, it is characterized in that: described three-dimensional winding iron core (10) top is connected with HV Terminal (1) and low-voltage terminal (3), and this three-dimensional winding iron core (10) sidepiece is also connected with high-voltage tap termination (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520324.8A CN105529145A (en) | 2014-09-30 | 2014-09-30 | Resin insulation dry type transformer with three-dimensional roll iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520324.8A CN105529145A (en) | 2014-09-30 | 2014-09-30 | Resin insulation dry type transformer with three-dimensional roll iron core |
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| Publication Number | Publication Date |
|---|---|
| CN105529145A true CN105529145A (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410520324.8A Pending CN105529145A (en) | 2014-09-30 | 2014-09-30 | Resin insulation dry type transformer with three-dimensional roll iron core |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710828A (en) * | 2017-01-06 | 2017-05-24 | 江苏源通电气有限公司 | Resin insulation dry type transformer with three-dimensional reel iron core |
| CN108242320A (en) * | 2017-12-30 | 2018-07-03 | 泰州市天力铁芯制造有限公司 | A kind of low energy consumption solid transformer iron core and its manufacturing process |
| CN112885577A (en) * | 2021-01-15 | 2021-06-01 | 中变集团上海变压器有限公司 | Dry-type transformer with oval iron core |
| US11842837B2 (en) | 2021-01-15 | 2023-12-12 | Zhongbian Group Shanghai Transformer Co., Ltd. | Dry-type transformer with elliptical iron core |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262955A (en) * | 2010-05-28 | 2011-11-30 | 广东海鸿变压器有限公司 | 110kV and higher voltage level stereo triangle wound iron core power transformer |
| CN102306541A (en) * | 2011-05-27 | 2012-01-04 | 广东海鸿变压器有限公司 | Resin-moulded dry-type transformer with three-dimensional noncrystalline alloy roll iron core |
| CN202473534U (en) * | 2012-01-19 | 2012-10-03 | 北京新特电气有限公司 | Novel transformer with three-dimensional wound iron core |
-
2014
- 2014-09-30 CN CN201410520324.8A patent/CN105529145A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262955A (en) * | 2010-05-28 | 2011-11-30 | 广东海鸿变压器有限公司 | 110kV and higher voltage level stereo triangle wound iron core power transformer |
| CN102306541A (en) * | 2011-05-27 | 2012-01-04 | 广东海鸿变压器有限公司 | Resin-moulded dry-type transformer with three-dimensional noncrystalline alloy roll iron core |
| CN202473534U (en) * | 2012-01-19 | 2012-10-03 | 北京新特电气有限公司 | Novel transformer with three-dimensional wound iron core |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710828A (en) * | 2017-01-06 | 2017-05-24 | 江苏源通电气有限公司 | Resin insulation dry type transformer with three-dimensional reel iron core |
| CN108242320A (en) * | 2017-12-30 | 2018-07-03 | 泰州市天力铁芯制造有限公司 | A kind of low energy consumption solid transformer iron core and its manufacturing process |
| CN112885577A (en) * | 2021-01-15 | 2021-06-01 | 中变集团上海变压器有限公司 | Dry-type transformer with oval iron core |
| US11842837B2 (en) | 2021-01-15 | 2023-12-12 | Zhongbian Group Shanghai Transformer Co., Ltd. | Dry-type transformer with elliptical iron core |
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Application publication date: 20160427 |
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