CN203481023U - Multi-level continuous voltage adjusting twelve-pulse-wave rectifier transformer - Google Patents
Multi-level continuous voltage adjusting twelve-pulse-wave rectifier transformer Download PDFInfo
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- CN203481023U CN203481023U CN201320616821.9U CN201320616821U CN203481023U CN 203481023 U CN203481023 U CN 203481023U CN 201320616821 U CN201320616821 U CN 201320616821U CN 203481023 U CN203481023 U CN 203481023U
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Abstract
The utility model relates to the technical field of rectifier transformers, in particular to a multi-level continuous voltage adjusting twelve-pulse-wave rectifier transformer which comprises a voltage adjusting side transformer and a rectifying side transformer. The voltage adjusting side transformer comprises a basic winding, a phase shifting winding, a rough adjusting winding and a fine adjusting winding. The rectifying side transformer comprises a high-voltage winding and a low-voltage winding. The rough adjusting winding and the fine adjusting winding provide power for the high-voltage winding. According to the mode that the phase shifting winding is arranged on the voltage adjusting side transformer, under the situation of the same capacity and the same efficiency, the number of needed materials is small through the connecting method, manufacturing cost is low, investment is saved, and the performance cost ratio is high. Meanwhile, the design that a rough-fine adjusting on-load tap changer is used for multi-level continuous rough-fine voltage adjusting is used, voltage adjusting is carried out through the rough-fine adjusting on-load tap changer, continuous voltage adjusting from the 47th level to the 95th level is achieved through the changer without power-cut operation, operation is simple, and safety is high.
Description
Technical field
The utility model relates to transformer technology field, relates in particular to a kind of multistage continuous voltage regulating 12 pulsating wave rectifier transformer.
Background technology
The range of regulation of electrical network is generally ± and 10%, the industrial rectifier transformer range of regulation of electrolysis for production is large, is generally 5%-105%.In prior art, non-excitation pressure adjustment fall to disconnect closes and on-load voltage regulating switch is to develop on common positive-negative voltage-regulation basis in order to adapt to the smelting process demand of metallurgy industry.On common positive and negative tune basis, add a non-excitation pressure adjustment switch to realize 54 grades to 70 grades pressure regulation, to realize the technological requirement of pressure regulation on a large scale.On-load voltage regulation scope is ± 17, totally 35 grades, adds that non-excitation pressure adjustment falls to disconnect pass and just can realize the pressure regulation of 2 * 35=70 level.But from low-voltage to high voltage, need during (5%-105%) pressure regulation to have a power failure, cause trouble to like this switch operation and smelting process, complicated operation, equipment investment are large.
For adapting to smelting process demand, need the rectifier transformer of low-voltage and high-current and the rectifier power source that rectifier cabinet forms.During this rectifying device operation, can produce high order harmonic component, this high order harmonic component can produce infringement to electrical network.In order to suppress the infringement that high order harmonic component can be to electrical network, need in rectifier transformer, increase the phase shift number of rectifier transformer, by increasing the pulse number of system, suppress harmonic wave electrical network is produced to infringement.The pulse wave that every phase shift of large rectifier transformer produces is 12 pulsating wave, and 12 pulsating wave large rectifier transformer is comprised of a pressure regulation side transformer and two rectification side transformers.In prior art, in order to realize above pulse number, phase shift winding is set in rectification side transformer, be that rectification side transformer is comprised of phase shift coil, the basic coil of high pressure, low-voltage coil, phase shift winding adopts Z-connection to connect with the basic coil of high pressure and forms six pulse waves.Forming 12 pulsating wave just needs rectification side that two transformers are set, so need two phase shift windings and the basic coil of high pressure.So modulation Induction Regulation or in lotus root pressure regulation the bind mode of winding reach high efficiency 12 pulsating wave output and need material many, thereby cause the manufacturing cost of rectifier transformer high, cover an area of, invest large.
Therefore,, for above deficiency, the utility model provides a kind of multistage continuous voltage regulating 12 pulsating wave rectifier transformer.
Utility model content
(1) technical problem that will solve
A technical problem to be solved in the utility model is to provide a kind of low cost of manufacture, invests little multistage continuous voltage regulating 12 pulsating wave rectifier transformer.
Another technical problem to be solved in the utility model is to provide a kind of multistage continuous voltage regulating 12 pulsating wave rectifier transformer carrying out in the situation that not having a power failure to switch operation.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of multistage continuous voltage regulating 12 pulsating wave rectifier transformer, comprise pressure regulation side transformer and rectification side transformer, described pressure regulation side transformer comprises basic winding, phase shift winding and coarse adjustment winding, fine tuning winding, described rectification side transformer comprises high pressure winding and low pressure winding, and described coarse adjustment winding and fine tuning winding are powered to high pressure winding.
Wherein, described coarse adjustment winding and fine tuning winding adjust on-load voltage regulating switch to realize multi-stage coarse and fine continuous pressure by thickness.
Wherein, described phase shift winding coupling becomes extend-triangle.
Wherein, described rectifier transformer also comprises for placing the fuel tank of pressure regulation side transformer and rectification side transformer.
(3) beneficial effect
The utility model arranges the mode of phase shift winding at pressure regulation side transformer, the mode that phase shift winding is set than rectification side transformer is saved a phase shift coil.Therefore, at same capacity with efficiency in the situation that, the required material of this connection is few, low cost of manufacture, reduced investment, cost performance are high.Meanwhile, the utility model adopts on-load voltage regulating switch to carry out the design of multistage continuous voltage regulating, and its pressure regulation is to utilize thickness to adjust on-load voltage regulating switch, this switch can continuous voltage regulating to 47 grade to 95 grades and the operation that need not have a power failure is simple to operate, safe.
Accompanying drawing explanation
Fig. 1 is the elementary diagram of the multistage continuous voltage regulating 12 pulsating wave of the utility model rectifier transformer;
Fig. 2 is the phase winding Pareto diagram of the multistage continuous voltage regulating 12 pulsating wave of the utility model rectifier transformer.
Wherein: 1: pressure regulation side transformer; 2: rectification side transformer; 3: magnetic circuit; W1: basic winding; W2: phase shift winding; W3: fine tuning winding; W4: coarse adjustment winding; W5: high pressure winding; W6: low pressure winding.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, multistage on-load voltage regulation 12 pulsating wave rectifier transformer comprises pressure regulation side transformer 1 and rectification side transformer 2, pressure regulation side transformer 1 comprises basic winding w1, phase shift winding w2 and coarse adjustment winding w4, fine tuning winding w3, rectification side transformer 2 comprises high pressure winding w5 and low pressure winding w6, coarse adjustment winding w4 and fine tuning winding w3 adjust on-load voltage regulating switch to realize multi-stage coarse and fine continuous pressure by thickness, and power to the high pressure winding w5 of rectification side transformer 2.Adopt on-load coarse and fine voltage regulation switch to carry out the design of multistage continuous voltage regulating, overcome non-excitation pressure adjustment and fall to disconnect to close and need the defect that has a power failure to switch operation, can direct pressure regulation in transformer operation, facilitate switch operation, save time, operational efficiency is high.Pressure regulation side and net side are electromagnetic induction relations, have avoided being connected with the direct circuit of net side.The fault of net side can not directly cause infringement to regulating circuit and secondary side like this.And phase-shift voltage regulating has increased the pulse number of system, thereby suppress the infringement of harmonic wave to electrical network, thereby increase efficiency, improved the reliability of rectifier transformer and operation of power networks.Meanwhile, rectifier transformer to 2 outputs of rectification side transformer, makes rectifier transformer secondary side voltage range large by modulation thickness winding, can realize 47 to 95 grades of continuous rank difference pressure regulation.
Phase shift winding w2 is arranged on pressure regulation side transformer 1, and pressure regulation side transformer 1 is comprised of phase shift winding w2, basic winding w1, coarse and fine voltage regulation winding.Because rectification side transformer 2 is comprised of two transformers, two kinds of modes of modulation Induction Regulation and self-coupling are compared with the utility model scheme with regard to a multiplex phase-shift line loop material, thus the multistage continuous voltage regulating 12 pulsating wave rectifier transformer that the utility model adopts save material, low cost of manufacture, floor space little, invest little, cost performance is high.
The bind mode of phase shift winding w2 is epitaxy delta connection, and the material that epitaxy delta connection mode needs than Z-connection is few.
As shown in Figure 2, the winding of pressure regulation side transformer 1 is sleeved on a magnetic circuit 3 jointly, from magnetic circuit outward successively: phase shift winding w2, basic winding w1, coarse adjustment winding w4 and fine tuning winding w3.
Rectifier transformer also comprises for placing the fuel tank of pressure regulation side transformer 1 and rectification side transformer 2.Fuel tank is the holding components of oil-immersed type transformer, and oil, particularly iundustrial oil are equipped with in fuel tank the inside, because this oil thermal conductivity is good, with oil immersion, steep transformer, can dispel the heat for transformer.
As can be seen from the above embodiments: the utility model arranges the mode of phase shift winding at pressure regulation side transformer, the mode that than rectification side transformer phase shift winding is set is saved a phase shift coil.Therefore, at same capacity with efficiency in the situation that, the required material of this connection is few, low cost of manufacture, reduced investment, cost performance are high.Meanwhile, the utility model adopts thickness to adjust on-load voltage regulating switch to carry out the design of multi-stage coarse and fine continuous pressure, and its pressure regulation is to utilize thickness tune switch, and this switch can continuous voltage regulating to 47 grades-95 grades and the operation that need not have a power failure is simple, safe.
Finally it should be noted that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those skilled in the art are to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a multistage continuous voltage regulating 12 pulsating wave rectifier transformer, it is characterized in that, comprise pressure regulation side transformer and rectification side transformer, described pressure regulation side transformer comprises basic winding, phase shift winding and coarse adjustment winding, fine tuning winding, described rectification side transformer comprises high pressure winding and low pressure winding, and described coarse adjustment winding and fine tuning winding are powered to high pressure winding.
2. multistage continuous voltage regulating 12 pulsating wave rectifier transformer according to claim 1, is characterized in that, described coarse adjustment winding and fine tuning winding adjust on-load voltage regulating switch to realize multi-stage coarse and fine continuous pressure by thickness.
3. multistage continuous voltage regulating 12 pulsating wave rectifier transformer according to claim 1 and 2, is characterized in that, described phase shift winding coupling becomes extend-triangle.
4. multistage continuous voltage regulating 12 pulsating wave rectifier transformer according to claim 3, is characterized in that, described rectifier transformer also comprises for placing the fuel tank of pressure regulation side transformer and rectification side transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320616821.9U CN203481023U (en) | 2013-10-08 | 2013-10-08 | Multi-level continuous voltage adjusting twelve-pulse-wave rectifier transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320616821.9U CN203481023U (en) | 2013-10-08 | 2013-10-08 | Multi-level continuous voltage adjusting twelve-pulse-wave rectifier transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481023U true CN203481023U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320616821.9U Expired - Fee Related CN203481023U (en) | 2013-10-08 | 2013-10-08 | Multi-level continuous voltage adjusting twelve-pulse-wave rectifier transformer |
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| CN (1) | CN203481023U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489599A (en) * | 2013-10-08 | 2014-01-01 | 保定天威集团(江苏)五洲变压器有限公司 | Multistage continuous voltage-regulating twelve-pulse-wave rectifier transformer |
| CN105336477A (en) * | 2015-11-21 | 2016-02-17 | 河南铜牛变压器有限公司 | Immersion type transformer for 12-pulse-wave intermediate frequency furnace |
| CN104779043B (en) * | 2015-04-14 | 2016-07-13 | 保定天威集团特变电气有限公司 | A kind of 220kV ice-melt rectifier transformer |
| CN110211785A (en) * | 2019-03-19 | 2019-09-06 | 江苏五洲电力科技有限公司 | A kind of 24 pulse wave rectifier transformer of continuous voltage regulating |
-
2013
- 2013-10-08 CN CN201320616821.9U patent/CN203481023U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489599A (en) * | 2013-10-08 | 2014-01-01 | 保定天威集团(江苏)五洲变压器有限公司 | Multistage continuous voltage-regulating twelve-pulse-wave rectifier transformer |
| CN103489599B (en) * | 2013-10-08 | 2016-04-06 | 保定天威集团(江苏)五洲变压器有限公司 | A kind of multistage continuous voltage regulating 12 pulsating wave rectifier transformer |
| CN104779043B (en) * | 2015-04-14 | 2016-07-13 | 保定天威集团特变电气有限公司 | A kind of 220kV ice-melt rectifier transformer |
| CN105336477A (en) * | 2015-11-21 | 2016-02-17 | 河南铜牛变压器有限公司 | Immersion type transformer for 12-pulse-wave intermediate frequency furnace |
| CN110211785A (en) * | 2019-03-19 | 2019-09-06 | 江苏五洲电力科技有限公司 | A kind of 24 pulse wave rectifier transformer of continuous voltage regulating |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20161008 |