CN103413665A - High-power high-voltage frequency conversion oil-immersed rectifier transformer - Google Patents
High-power high-voltage frequency conversion oil-immersed rectifier transformer Download PDFInfo
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- CN103413665A CN103413665A CN2013103631449A CN201310363144A CN103413665A CN 103413665 A CN103413665 A CN 103413665A CN 2013103631449 A CN2013103631449 A CN 2013103631449A CN 201310363144 A CN201310363144 A CN 201310363144A CN 103413665 A CN103413665 A CN 103413665A
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- frequency conversion
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- voltage frequency
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Abstract
The invention discloses a high-power high-voltage frequency conversion oil-immersed rectifier transformer. The high-power high-voltage frequency conversion oil-immersed rectifier transformer is characterized by comprising two bodies, wherein the high-voltage connection of one body is in the mode of delta connection, and the high-voltage connection of the other body is in the mode of Y connection. A phase difference of 30omicron is formed between the two bodies to realize 36 pulse wave output. The transformer adopts seven-stage seaming of high-permeability crystal orientation silicon steel sheets, a high-voltage lead and a low-voltage lead respectively have a lead clamping structure, and reinforcing iron is arranged at the lower part of an oil tank. Compared with the prior art, the transformer has the beneficial effects of reasonable structure, low loss, low temperature rise, low noise and strong short circuit resistance capacity.
Description
Technical field
The present invention relates to field transformer, especially a kind of high-power high voltage frequency conversion oil immersed type rectifier transformer.
Background technology
In existing AC variable-frequency speed regulation system, it is all less that oil immersed type rectifier transformer capacity is joined by institute, and the Homemade Transformers used in the high power AC frequency conversion speed-adjusting system is all dry-type rectifier transformer, but because environment for use is severe, the easy moisture absorption of dry-type rectifier transformer is damaged, and useful life is shorter, and the auxiliary facility complexity, fault point is many, and the oil immersed type rectifier transformer can meet all-environment stable operation fully.The oil immersed type rectifier transformer used in the high power AC frequency conversion speed-adjusting system of current domestic operation is all imported product.
Summary of the invention
The object of the present invention is to provide a kind of high-power high voltage frequency conversion oil immersed type rectifier transformer, the high-power high voltage frequency conversion is adopted two device bodies with the oil immersed type rectifier transformer, a device height compression bonded line connects for " △ ", another device height compression bonded line connects for " Y ", between two device bodies, there is the phase difference of 30o to realize 36 pulse waves outputs, have advantages of that low-loss, low-temperature-rise, low noise, anti-short circuit capability are strong.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of high-power high voltage frequency conversion oil immersed type rectifier transformer, is characterized in that, described high-power high voltage frequency conversion is adopted two device bodies with the oil immersed type rectifier transformer, and a device height compression bonded line connects for " △ ", and another device height compression bonded line connects for " Y ".
Described high-power high voltage frequency conversion is with the phase difference of 30o is arranged between oil immersed type rectifier transformer two device bodies.
Described high-power high voltage frequency conversion has been adopted seven grades of seams of high magnetic conduction grain oriented silicon steel sheet with the oil immersed type rectifier transformer.
Described high-power high voltage frequency conversion is adopted the lead-in wire clamp structure with high-voltage connection and the low-voltage lead of oil immersed type rectifier transformer.
Described high-power high voltage frequency conversion arranges reinforcement iron with the fuel tank bottom of oil immersed type rectifier transformer.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of high-power high voltage frequency conversion oil immersed type rectifier transformer, rational in infrastructure, low-loss, low-temperature-rise, low noise, anti-short circuit capability are strong.
The accompanying drawing explanation
Fig. 1 is winding arrangement structure schematic diagram of the present invention.
Fig. 2 is high pressure lead wire structure figure of the present invention.
Fig. 3 is low voltage lead structure figure of the present invention.
Fig. 4 is transformer contour structures schematic diagram of the present invention.
1-three pillar type 2-high pressure unshakable in one's determination winding △ 3-high pressure winding Y 4-low pressure winding 5-high-voltage connection 6-low-voltage lead 7 sleeve pipe 8-case lids
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, high-power high voltage frequency conversion oil immersed type rectifier transformer, adopt two device bodies, a device height compression bonded line connects for " △ ", another device height compression bonded line connects for " Y ", between the device body, has the phase difference of 30o to realize 36 pulse wave outputs, and three pillar type iron core 1 has adopted seven grades of seams of high magnetic conduction grain oriented silicon steel sheet, high-voltage connection 5 and low-voltage lead 6 adopt the lead-in wire clamp structure, and the high-power high voltage frequency conversion arranges reinforcement iron with oil immersed type oil tank for rectifier transformer 8 bottoms.
The high-power high voltage frequency conversion is adopted two device bodies with the oil immersed type rectifier transformer, each device body is divided equally total capacity, one of them device is as high pressure winding △ 2, another presses winding Y 3 for device height, every transformer output 18 pulse waves for single transformer, but these two transformers connected in parallel operate to transducer power unit, and " △ " connects and " Y " has the phase difference of 30o between connecing, and so just can be implemented as the power supply that power cell provides 36 pulse waves.The high-power high voltage frequency conversion is 6 low pressure windings 4 with the every of oil immersed type rectifier transformer mutually, because each power cell requires the voltage of transformer output as far as possible consistent, so namely transformer must guarantee that the impedance of partly passing through of each low pressure winding 4 must balance, according to software, calculate and in the past correlation experience is adjusted size and the position of transformer coil, transformer partly pass through impedance unbalance rate<2%.The high-power high voltage frequency conversion is 12 power cell power supplies with the oil immersed type rectifier transformer, the load of each power cell of system requirements needs balanced the distribution, by software, calculate rational 6 low pressure windings 4 arranging every phase to reach the current balance type of each low-voltage coil output, the waveform of power cell output approaches perfection like this.
The high-power high voltage frequency conversion is calculated by the Electric Field Numerical Calculation to insulation system, wave process with the oil immersed type rectifier transformer, has proposed rationally, optimizes, economic Main Insulation Structure of Electric, longitudinal insulating structure; By to bearing the analytical calculation of short-circuit capacity, adopt an effective measure, make the transformer device structure anti-short circuit capability stronger.On the basis that meets insulation and heat radiation, rationally adjusting ampere-turn distributes, a plurality of designs are carried out to the contrast of short circuit mechanical force and intensity, transformer produces when bearing short circuit mechanical vibration force is reduced as far as possible, and improve the supporting construction of coil, consider that the flakiness ratio of wire is within rational scope, the working strength of intensifier coil, improved design safety factor (DSF).Coil adopts half hard copper to come buckling of intensifier coil itself and axial strength.Reasonably design coil overhang insulation structure, strengthen the intensity of end pressing plate, guarantee that coil reaches the axial precompression of designing requirement.Adopt the major-minor pressure plate structure; With the cylinder pressure compactor after one's death, fix and lock nail pressing, guarantee device body and stretching unshakable in one's determination.
The high-power high voltage frequency conversion has been adopted 7 grades of seams of high magnetic conduction grain oriented silicon steel sheet with oil immersed type rectifier transformer three pillar type iron core 1, in Core Design, adopts vibration reducing measure, and place has designed cushion blocking in feet unshakable in one's determination.Oil tank of transformer has designed denoising device, can effectively reduce the noise that transformer produces like this.
The high-power high voltage frequency conversion is put many lead-in wires in order with the oil immersed type rectifier transformer according to the outlet order after, lead-in wire in clamping place of wooden part clamping plate adds the certain thickness attached insulation of bag, by process with lead-in wire, add the attached insulation of bag after with thick fixture, be placed in the middle of two wooden part clamping plate, and fix and get final product with the bakelite bolt.Adopt so rational lead-in wire clamp structure, guaranteed that lead-in wire has enough mechanical strengths.
High-power high voltage frequency conversion oil immersed type oil tank for rectifier transformer, will strengthen iron and be arranged in below case lid 8 low-voltage interface flanges, and in the middle of low-tension bushing 7, two ends withstand on the case lid opening edge and weld, and have solved the problem of the excessive insufficient strength of case lid 8 opening; While is welded with again one and strengthens iron below whole case lid, and welded together with last reinforcement iron, thereby has effectively increased the bulk strength of case lid.
Claims (5)
1. a high-power high voltage frequency conversion oil immersed type rectifier transformer, is characterized in that, described high-power high voltage frequency conversion is adopted two device bodies with the oil immersed type rectifier transformer, and a device height compression bonded line connects for " △ ", and another device height compression bonded line connects for " Y ".
2. a kind of high-power high voltage frequency conversion oil immersed type rectifier transformer according to claim 1, is characterized in that, described high-power high voltage frequency conversion is with the phase difference of 30o is arranged between oil immersed type rectifier transformer two device bodies.
3. a kind of high-power high voltage frequency conversion oil immersed type rectifier transformer according to claim 1, is characterized in that, described high-power high voltage frequency conversion has been adopted seven grades of seams of high magnetic conduction grain oriented silicon steel sheet with the oil immersed type rectifier transformer.
4. a kind of high-power high voltage frequency conversion oil immersed type rectifier transformer according to claim 1, is characterized in that, described high-power high voltage frequency conversion is adopted the lead-in wire clamp structure with high-voltage connection and the low-voltage lead of oil immersed type rectifier transformer.
5. a kind of high-power high voltage frequency conversion oil immersed type rectifier transformer according to claim 1, is characterized in that, described high-power high voltage frequency conversion arranges reinforcement iron with the fuel tank bottom of oil immersed type rectifier transformer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310363144.9A CN103413665B (en) | 2013-08-16 | 2013-08-16 | A kind of high-power high voltage frequency conversion oil immersed type rectifier transformer |
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| CN201310363144.9A CN103413665B (en) | 2013-08-16 | 2013-08-16 | A kind of high-power high voltage frequency conversion oil immersed type rectifier transformer |
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| CN103413665A true CN103413665A (en) | 2013-11-27 |
| CN103413665B CN103413665B (en) | 2016-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609275A (en) * | 2016-01-13 | 2016-05-25 | 苏州吴变电气科技有限公司 | 54 pulse wave phase shift rectifier transformer |
| CN106449068A (en) * | 2016-12-19 | 2017-02-22 | 保定天威集团特变电气有限公司 | 3*36 pulse wave phase-shifting rectifier transformer |
| CN109545522A (en) * | 2019-01-30 | 2019-03-29 | 中石化石油工程设计有限公司青岛分公司 | 110kV high-power high voltage converter plant oil immersed type variable-frequency transformer |
Citations (6)
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| JPH0689820A (en) * | 1992-09-08 | 1994-03-29 | Fuji Electric Co Ltd | Transformer provided with phase-shifting winding for rectifier |
| CN1059521C (en) * | 1995-03-10 | 2000-12-13 | 株式会社荏原制作所 | DC power supply device with hih voltage and large power handling capability |
| CN201562526U (en) * | 2009-10-29 | 2010-08-25 | 保定天威集团有限公司 | Oil guide box of forced guide oil circulation cooling type transformer |
| CN102360856A (en) * | 2011-11-04 | 2012-02-22 | 广西恒顺电器有限公司 | 110kV multipurpose high-efficiency and energy-saving rectifier transformer special for producing silicon carbide |
| CN202736677U (en) * | 2012-07-09 | 2013-02-13 | 山东金科电气有限公司 | Seven-stepping iron core |
| CN203423055U (en) * | 2013-08-16 | 2014-02-05 | 辽宁华冶集团发展有限公司 | Oil-immersed rectifier transformer for high-power high-voltage frequency conversion |
-
2013
- 2013-08-16 CN CN201310363144.9A patent/CN103413665B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0689820A (en) * | 1992-09-08 | 1994-03-29 | Fuji Electric Co Ltd | Transformer provided with phase-shifting winding for rectifier |
| CN1059521C (en) * | 1995-03-10 | 2000-12-13 | 株式会社荏原制作所 | DC power supply device with hih voltage and large power handling capability |
| CN201562526U (en) * | 2009-10-29 | 2010-08-25 | 保定天威集团有限公司 | Oil guide box of forced guide oil circulation cooling type transformer |
| CN102360856A (en) * | 2011-11-04 | 2012-02-22 | 广西恒顺电器有限公司 | 110kV multipurpose high-efficiency and energy-saving rectifier transformer special for producing silicon carbide |
| CN202736677U (en) * | 2012-07-09 | 2013-02-13 | 山东金科电气有限公司 | Seven-stepping iron core |
| CN203423055U (en) * | 2013-08-16 | 2014-02-05 | 辽宁华冶集团发展有限公司 | Oil-immersed rectifier transformer for high-power high-voltage frequency conversion |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609275A (en) * | 2016-01-13 | 2016-05-25 | 苏州吴变电气科技有限公司 | 54 pulse wave phase shift rectifier transformer |
| CN106449068A (en) * | 2016-12-19 | 2017-02-22 | 保定天威集团特变电气有限公司 | 3*36 pulse wave phase-shifting rectifier transformer |
| CN109545522A (en) * | 2019-01-30 | 2019-03-29 | 中石化石油工程设计有限公司青岛分公司 | 110kV high-power high voltage converter plant oil immersed type variable-frequency transformer |
| CN109545522B (en) * | 2019-01-30 | 2024-03-29 | 中石化石油工程设计有限公司青岛分公司 | Oil-immersed variable-frequency transformer for 110kV high-power high-voltage variable-frequency device |
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| Publication number | Publication date |
|---|---|
| CN103413665B (en) | 2016-03-30 |
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