CN202586763U - New type dual-power on-load voltage regulating and rectifier transformer - Google Patents
New type dual-power on-load voltage regulating and rectifier transformer Download PDFInfo
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- CN202586763U CN202586763U CN 201220193340 CN201220193340U CN202586763U CN 202586763 U CN202586763 U CN 202586763U CN 201220193340 CN201220193340 CN 201220193340 CN 201220193340 U CN201220193340 U CN 201220193340U CN 202586763 U CN202586763 U CN 202586763U
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Abstract
The utility model discloses a new type dual-power on-load voltage regulating and rectifier transformer. A voltage regulating transformer comprises voltage regulating transformer high-voltage coils, voltage regulating transformer voltage regulating coils, and on-load switches. A rectifier transformer comprises first rectifier high-voltage coils, second rectifier high-voltage coils, rectifier low-voltage coils, and no-load switches. According to the utility model, the series combination and the parallel combination of the first rectifier high-voltage coils and the second rectifier high-voltage coils are realized through the conversion of the no-load switches, and positive and negative multilevel voltage regulation combinations are realized in the voltage regulating transformer high-voltage coils through the selection of positive terminals, negative terminals and output terminals of the on-load switches to output different high voltage values to the rectifier transformer, and then voltage transformation is performed by the rectifier transformer, so different low voltage values are outputted. The voltage regulating transformer and the rectifier transformer are conjugated cores. According to the voltage regulating and rectifier transformer of the utility model, the advantage of wide voltage regulating range is realized, low-voltage output voltages are outputted according to rank differences, the range of the low-voltage output voltages is the same as the voltage regulating range, the voltage regulating and rectifier transformer can be operated in different voltage classes including 20KV and 10KV, and advantages of high utilization rate of equipment, less loss, reduced occupied area, improved production efficiency, reduced production cost and reduced operating cost are realized.
Description
Technical field
The utility model relates to the special transformer field, particularly a kind of novel duplicate-power on-load voltage regulation rectifier transformer.
Background technology
Duplicate supply on-load voltage regulation rectifier transformer (high pressure input 20KV or 10KV) adopts following mode at present usually:
1. voltage regulating rectifier transformer is not with the modulation pressure regulation, adopts single machine body structure (being single core structure), and voltage regulating rectifier transformer adopts variable flux voltage regulation;
2. adopt two transformers of single machine body structure (being single core structure) to realize, the transformer of 1 20KV, the transformer of 1 10KV is when voltage on line side is 20KV, with the transformer of 20KV voltage, when voltage on line side is 10KV, with the transformer of 10KV voltage.
The common issue with that above dual mode exists is:
1. range of regulation narrow (being that the low pressure output voltage range is little);
2. pressure regulation level shelves number few (numerical value that is the low pressure output voltage is few);
3. non-rank difference pressure regulation (numerical value that is every grade of output voltage of low pressure is not equal difference output).
Scheme one also exists following not enough in addition:
1. influenced by the voltage fluctuation of High-Voltage Network side, low pressure output is unstable, is unfavorable for becoming DC power supply to AC rectification, be rectified into direct current after dc voltage fluctuation big, be unfavorable for the operation of load;
2. adopt the transformer of variable flux voltage regulation to receive the voltage on line side influence of fluctuations, easy overexcited operation, the iron core temperature rise and the transformer noise of transformer are big;
3. with respect to the transformer of rank difference pressure regulation, the non-transformer application scope of extreme difference pressure regulation that waits is little.
Scheme two also exists following not enough:
1. with respect to the transformer of rank difference pressure regulation, the non-transformer application scope of extreme difference pressure regulation that waits is less, can not satisfy the demand of electrolysis process;
2. adopt two transformer costs too high, floor space is big.
Summary of the invention
The purpose of the utility model is to provide a kind of novel duplicate-power on-load voltage regulation rectifier transformer, to overcome the deficiency that above-mentioned prior art exists.
The technical scheme that the utility model is taked is: a kind of novel duplicate-power on-load voltage regulation rectifier transformer; Comprise voltage regulating transformer and rectifier transformer; Each phase structure of said voltage regulating transformer and rectifier transformer is identical; Voltage regulating transformer comprises that pressure regulation uprises line ball circle, pressure regulation modified tone line ball circle and loaded switch, and rectifier transformer comprises that rectification uprises line ball circle, rectification step-down line ball circle and no load switch;
Said pressure regulation uprises the line ball circle and is connected from the common port of lotus root wiring with the positive and negative level terminal of loaded switch through the end; The positive and negative end of pressure regulation modified tone line ball circle is connected with two movable contacts of positive and negative level terminal respectively; The corresponding connection of lead-out terminal of the tap of pressure regulation modified tone line ball circle and loaded switch; And realize the combination of positive and negative multistage constant flux voltage regulation through the selection of positive and negative level terminal and lead-out terminal, export different high-voltage values thereby uprise the line ball circle to the rectification of rectifier transformer;
Said rectification uprises the line ball circle and is made up of the first rectification high-tension coil, the second rectification high-tension coil; The first rectification high-tension coil is connected with no load switch respectively with the second rectification high-tension coil, thereby and the conversion through no load switch realize that the combination of serial or parallel connection selects the access of High-Voltage Network side 20KV or the different voltages of 10KV; After over commutation uprises the change magnetic flux transformation between the low-voltage coil, from rectification step-down line ball circle L2 output low voltage voltage value.
Its further technical scheme is: said voltage regulating transformer and rectifier transformer are the conjugation iron core.
Said rectification low-voltage coil is two anti-star braid interphase reactor rectification circuits or three-phase bridge rectifier circuit.
Owing to take technique scheme, a kind of novel duplicate-power on-load voltage regulation rectifier transformer of the utility model has following beneficial effect:
1. because a kind of novel duplicate-power on-load voltage regulation rectifier transformer modulation of the utility model adopts on-load voltage regulation; Rectification becomes adopts No-load changer to go here and there and the whole line ball circle that uprises; Thereby obtain in 20KV electric pressure and operation under the voltage on line side of 10KV electric pressure, low pressure can be exported identical voltage, makes transformer have the ability of regulating the low pressure output voltage on a large scale and under different electric pressure electrical networks, moving at powering-off state not; Guaranteed under different electric pressures; The low pressure output voltage of transformer is identical with range of regulation, has both improved the transformer equipment utilance, simplifies transformer relay protecting; Can reduce floor space again, enhance productivity, reduce manufacturing cost and operating cost.
2. because a kind of novel duplicate-power on-load voltage regulation rectifier transformer of the utility model adopts the modulation pressure regulation; The pressure regulation shelves number of rectifier transformer can be done often, and range of regulation can be done greatlyyer, and promptly wide (the low pressure output voltage is x to range of regulation; The output area of x can be 5%x ~ 100%x; For example when customer requirements low-voltage rated output voltage x was 160V, the output area of side low voltage voltage was 8 ~ 160V), can satisfy the need for electricity of some special industries.Demand like aluminum electrolysis technology is exactly that the requirement transformer is exported the low bigger voltage range that is pressed with.
3. adopt a kind of novel duplicate-power on-load voltage regulation rectifier transformer of the utility model to divide pressure regulation change and rectification to become two parts, and adopt pressure regulation to become constant flux voltage regulation, rectification becomes constant flux voltage regulation, and its low pressure output voltage becomes rank difference output.
4. because the modulation of rectifier transformer can be made conjugated structure with the whole core structure that becomes, the loss of transformer and cost are all reduced, not only energy-conservation but also economize material.
Below in conjunction with accompanying drawing and embodiment the technical characterictic of a kind of novel duplicate-power on-load voltage regulation rectifier transformer of the utility model is further described.
Description of drawings
Fig. 1: the utility model. a kind of connection principle and voltage-regulation principle figure of novel duplicate-power on-load voltage regulation rectifier transformer (remove the rectification low-pressure section; No load switch K I is positioned at state 1, that is: the first rectification high-tension coil is parallelly connected state with the second rectification high-tension coil);
Fig. 2: Fig. 1 rectification uprises the equivalent measuring schematic diagram of line ball circle part;
Fig. 3: rectification uprised the elementary diagram (the first rectification high-tension coil and the second rectification high-tension coil are series connection) of line ball circle when no load switch K I was positioned at state 2;
The equivalent measuring schematic diagram of Fig. 4: Fig. 3;
Fig. 5: a kind of novel duplicate-power on-load voltage regulation rectifier transformer core structure figure of the utility model;
Fig. 6 ~ Fig. 7: a kind of novel duplicate-power on-load voltage regulation rectifier transformer machine body structure sketch map of the utility model;
Fig. 6-rectifier transformer machine body structure sketch map (wherein A phase);
Fig. 7-voltage regulating transformer machine body structure sketch map (wherein A phase);
The connection principle and the voltage-regulation principle figure of a kind of novel duplicate-power on-load voltage regulation rectifier transformer of Fig. 8: embodiment one;
The connection principle and the voltage-regulation principle figure of a kind of novel duplicate-power on-load voltage regulation rectifier transformer of Fig. 9: embodiment two.
Among the figure:
I-iron core, I 1-iron core conjugate moiety, II-rectifier transformer device body, III-voltage regulating transformer device body;
K I (K I a, K I b, K I c)-no load switch, K II (K II a, K II b, K II c)-loaded switch, K II 1 (K II 1a, K II 1b, K II 1c)-positive and negative level terminal, K II 2 (K II 2a, K II 2b, K II 2c)-lead-out terminal;
L1 (L1a, L1b, L1c)-rectification uprises the line ball circle, L11 (L11a, L11b, L11c)-first rectification high-tension coil, L12 (L12a, L12b, L12c)-second rectification high-tension coil, L2 (La, Lb, Lc)-rectification step-down line ball circle;
L3 (L3a, L3b, L3c)-pressure regulation uprises the line ball circle, L4 (L4a, L4b, L4c)-pressure regulation modified tone line ball circle.
Embodiment
Embodiment one
A kind of novel duplicate-power on-load voltage regulation rectifier transformer; Comprise voltage regulating transformer and rectifier transformer; Each phase structure of said voltage regulating transformer and rectifier transformer is identical; Voltage regulating transformer comprises that pressure regulation uprises line ball circle L3, pressure regulation modified tone line ball circle L4 and loaded switch K II, and rectifier transformer comprises that rectification uprises line ball circle L1, rectification step-down line ball circle L2 and no load switch K I;
The pressure regulation of each phase of voltage regulating transformer uprises line ball circle L3a, L3b, L3c and connects from the common junction that lotus root wiring and loaded switch K II are positioned at each mutually positive and negative level terminal K II 1a, K II 1b, K II 1c through the end; The positive and negative end of the pressure regulation modified tone line ball circle L4a of each phase, L4b, L4c is connected with two movable contacts of positive and negative level terminal K II 1a, K II 1b, K II 1c respectively; Tap (1 ~ 9 tap) and the loaded switch K II of the pressure regulation modified tone line ball circle L4a of each phase, L4b, L4c is positioned at each lead-out terminal K II 2a, K II 2b, corresponding connection of K II 2c mutually; And the selection of positive and negative level terminal K II 1a, K II 1b, K II 1c and lead-out terminal K II 2a through loaded switch, K II 2b, K II 2c realizes the combination of positive and negative multistage constant flux voltage regulation, thereby uprises the different high-voltage value of line ball circle L1 output to the rectification of rectifier transformer.
Said rectification uprises line ball circle L1 and is made up of the first rectification high-tension coil L11, the second rectification high-tension coil L12; The second rectification high-tension coil L12a of the first rectification high-tension coil L11a, L11b, L11c and each phase of each phase, L12b, L12c respectively be positioned at each no load switch K I a, K I b, K I c mutually and be connected; Thereby the second rectification high-tension coil L12a of the first rectification high-tension coil L11a, L11b, L11c and each phase of each phase, L12b, L12c realize the combination selection High-Voltage Network side 20KV of serial or parallel connection or the access of the different voltages of 10KV through the conversion of no load switch K I a, K I b, K I c; No load switch is got to parallelly connected position (state 1) operation (referring to accompanying drawing 1 and accompanying drawing 2) when voltage on line side is 10KV; No load switch K I is got to series position (state 2) operation (referring to accompanying drawing 3 and accompanying drawing 4) when voltage on line side is 20KV; Again after over commutation uprises the change magnetic flux transformation between the low-voltage coil, from rectification step-down line ball circle output low voltage voltage value.
Said voltage regulating transformer and rectifier transformer are the conjugation iron core; Said rectification step-down line ball circle L2 is two anti-star braid interphase reactor rectification circuits (referring to accompanying drawing 8, no load switch is positioned at state 1 among the figure).
Above-mentioned loaded switch K II no load switch K I is the adjusted in concert switch.
Embodiment two
A kind of novel duplicate-power on-load voltage regulation rectifier transformer; Comprise voltage regulating transformer and rectifier transformer; Each phase structure of voltage regulating transformer and rectifier transformer and embodiment one are basic identical; Different is that said rectification step-down line ball circle L2 is three-phase bridge rectifier circuit (referring to accompanying drawing 9, no load switch is positioned at state 1 among the figure).
Operation principle
The pressure regulation of each phase of voltage regulating transformer uprises line ball circle L3a, L3b, L3c and connects from the common junction that lotus root wiring and loaded switch K II are positioned at each mutually positive and negative level terminal K II 1a, K II 1b, K II 1c through the end; The positive and negative end of the pressure regulation modified tone line ball circle L4a of each phase, L4b, L4c is connected with two movable contacts of positive and negative level terminal K II 1a, K II 1b, K II 1c respectively; Tap (1 ~ 9 tap) and the loaded switch K II of the pressure regulation modified tone line ball circle L4a of each phase, L4b, L4c is positioned at each lead-out terminal K II 2a, K II 2b, corresponding connection of K II 2c mutually; And the selection of positive and negative level terminal K II 1a, K II 1b, K II 1c and lead-out terminal K II 2a through loaded switch, K II 2b, K II 2c realizes the combination of positive and negative multistage constant flux voltage regulation, thereby uprises the different high-voltage value of line ball circle L1 output to the rectification of rectifier transformer.
The second rectification high-tension coil L12a of the first rectification high-tension coil L11a, L11b, L11c and each phase of each phase of rectifier transformer, L12b, L12c respectively be positioned at each no load switch K I a, K I b, K I c mutually and be connected; Thereby the second rectification high-tension coil L12a of the first rectification high-tension coil L11a, L11b, L11c and each phase of each phase, L12b, L12c realize the combination selection High-Voltage Network side 20KV of serial or parallel connection or the access of the different voltages of 10KV through the conversion of no load switch K I a, K I b, K I c; No load switch is got to parallelly connected position (state 1) operation when voltage on line side is 10KV; No load switch K I is got to series position (state 2) operation when voltage on line side is 20KV; After over commutation uprises the change magnetic flux transformation between the low-voltage coil, export needed different low voltage voltage value from rectification step-down line ball circle.
Claims (3)
1. novel duplicate-power on-load voltage regulation rectifier transformer; Comprise voltage regulating transformer and rectifier transformer; It is characterized in that: each phase structure of said voltage regulating transformer and rectifier transformer is identical; Voltage regulating transformer comprises that pressure regulation uprises line ball circle (L3), pressure regulation modified tone line ball circle (L4) and loaded switch (K II), and rectifier transformer comprises that rectification uprises line ball circle (L1), rectification step-down line ball circle (L2) and no load switch (K I);
Said pressure regulation uprises line ball circle (L3) and is connected from the common port of lotus root wiring with the positive and negative level terminal (K II 1) of loaded switch (K II) through the end; The positive and negative end of pressure regulation modified tone line ball circle is connected with two movable contacts of positive and negative level terminal (K II 1) respectively; The corresponding connection of lead-out terminal (K II 2) of the tap of pressure regulation modified tone line ball circle and loaded switch (K II); And realize the combination of positive and negative multistage constant flux voltage regulation through the selection of positive and negative level terminal (K II 1) and lead-out terminal (K II 2), export different high-voltage values thereby uprise line ball circle (L1) to the rectification of rectifier transformer;
Said rectification uprises line ball circle (L1) and is made up of the first rectification high-tension coil (L11), the second rectification high-tension coil (L12); The first rectification high-tension coil (L11) is connected with no load switch (K I) respectively with the second rectification high-tension coil (L12), and through no load switch (K I) thus conversion realize that the combination of serial or parallel connection selects the access of High-Voltage Network side 20KV or the different voltages of 10KV; After over commutation uprises the change magnetic flux transformation between the low-voltage coil, from rectification step-down line ball circle (L2) output low voltage voltage value.
2. a kind of novel duplicate-power on-load voltage regulation rectifier transformer according to claim 1, it is characterized in that: said voltage regulating transformer and rectifier transformer are the conjugation iron core.
3. a kind of novel duplicate-power on-load voltage regulation rectifier transformer according to claim 1 and 2 is characterized in that: said rectification step-down line ball circle is two anti-star braid interphase reactor rectification circuits or three-phase bridge rectifier circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193340 CN202586763U (en) | 2012-05-02 | 2012-05-02 | New type dual-power on-load voltage regulating and rectifier transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193340 CN202586763U (en) | 2012-05-02 | 2012-05-02 | New type dual-power on-load voltage regulating and rectifier transformer |
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| CN202586763U true CN202586763U (en) | 2012-12-05 |
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| CN 201220193340 Expired - Fee Related CN202586763U (en) | 2012-05-02 | 2012-05-02 | New type dual-power on-load voltage regulating and rectifier transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533221A (en) * | 2016-12-08 | 2017-03-22 | 株洲中车时代装备技术有限公司 | High-power universal PWM rectifier and control method thereof |
| CN106653330A (en) * | 2016-12-01 | 2017-05-10 | 保定天威保变电气股份有限公司 | Voltage regulating mode connection structure for novel autotransformer |
-
2012
- 2012-05-02 CN CN 201220193340 patent/CN202586763U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653330A (en) * | 2016-12-01 | 2017-05-10 | 保定天威保变电气股份有限公司 | Voltage regulating mode connection structure for novel autotransformer |
| CN106533221A (en) * | 2016-12-08 | 2017-03-22 | 株洲中车时代装备技术有限公司 | High-power universal PWM rectifier and control method thereof |
| CN106533221B (en) * | 2016-12-08 | 2019-01-29 | 株洲中车时代电气股份有限公司 | A kind of high-power general type PWM rectifier and its control method |
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Granted publication date: 20121205 Termination date: 20150502 |
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