CN103680881B - A kind of adjustable transformer and rank difference pressure regulation method thereof - Google Patents
A kind of adjustable transformer and rank difference pressure regulation method thereof Download PDFInfo
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- CN103680881B CN103680881B CN201310699331.4A CN201310699331A CN103680881B CN 103680881 B CN103680881 B CN 103680881B CN 201310699331 A CN201310699331 A CN 201310699331A CN 103680881 B CN103680881 B CN 103680881B
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- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
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- 238000010079 rubber tapping Methods 0.000 claims description 5
- 239000002828 fuel tank Substances 0.000 claims description 4
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Abstract
One adjustable transformer of the present invention includes main transformer device body and string becomes device body；Described main transformer device body includes the main transformer common winding with end of incoming cables series winding and main transformer series coil, with the main transformer voltage regulation coil of main transformer common winding and main transformer series coil electromagnetic coupled；Described string change device body includes the string change primary winding of mutual electromagnetic coupling and becomes secondary coil with string；String becomes primary winding and connects with main transformer voltage regulation coil, is connected on the change secondary coil of the string on main transformer series coil and is connected with leading-out terminal.The rank difference pressure regulation method of adjustable transformer of the present invention, comprises the steps, the step transmitting voltage in string change secondary coil by regulating the access number of turn of main transformer series coil to change；The step of induced voltage in string change secondary coil is changed by regulating the access number of turn of main transformer voltage regulation coil；By regulating induced voltage and/or the step of transmission voltage change adjustable transformer outlet voltage；Wherein outlet voltage is equal to the algebraical sum of transmission voltage with induced voltage.
Description
Technical field
The present invention relates to transformer regulating technical field, be specially a kind of adjustable transformer and rank difference pressure regulation method thereof.
Background technology
In prior art, with its pressure regulation progression of special transformer because of the restriction by shunting switch carrying voltage and current in the commercial production such as metallurgical, range of regulation is little, very flexible, it is impossible to meet user's request；Simultaneously, due to the restriction of the voltage regulating mode structure of special transformer in prior art, main transformer and adjustable transformer are arranged in a fuel tank, therefore along with the increase of capacity and range of regulation, volume and weight is also significantly increased, and installs to transport and maintenance brings great inconvenience.
Summary of the invention
In order to solve problems of the prior art, the present invention provides a kind of adjustable transformer, is separated by adjustable transformer from rectifier transformer, and structure is unique, volume compact.
The rank difference pressure regulation method that the present invention is also corresponding, voltage regulating mode is flexible, and range of regulation is big.
The present invention is achieved through the following technical solutions:
A kind of adjustable transformer, becomes device body including main transformer device body and string；Described main transformer device body includes the main transformer common winding with end of incoming cables series winding and main transformer series coil, with the main transformer voltage regulation coil of main transformer common winding and main transformer series coil electromagnetic coupled；Described string change device body includes the string change primary winding of mutual electromagnetic coupling and becomes secondary coil with string；String becomes primary winding and connects with main transformer voltage regulation coil, is connected on the change secondary coil of the string on main transformer series coil and is connected with leading-out terminal.
Preferably, main transformer series coil is accessed by off circuit tap changer and excises, and main transformer series coil becomes secondary coil self-coupling by off circuit tap changer with string and is connected.
Further, main transformer series coil is in series with string change the corresponding of secondary coil respectively by three single-phase excitation-free tapping switchs.
Preferably, main transformer voltage regulation coil adopts the load ratio bridging switch being provided with polar selecting switch to access and excision.
Further, main transformer voltage regulation coil is connected with string change primary winding by a three-phase load ratio bridging switch.
Preferably, main transformer device body and string become device body and all adopt three-phase three-limb machine body structure, and are arranged in same fuel tank.
A kind of rank difference pressure regulation method based on adjustable transformer of the present invention of the present invention, comprises the steps, the step transmitting voltage in string change secondary coil by regulating the access number of turn of main transformer series coil to change；The step of induced voltage in string change secondary coil is changed by regulating the access number of turn of main transformer voltage regulation coil；By regulating induced voltage and/or the step of transmission voltage change adjustable transformer outlet voltage；Wherein outlet voltage is equal to the algebraical sum of transmission voltage with induced voltage.
Preferably, the gear maximal regulated progression of rank difference pressure regulation is long-pending with the gear progression of main transformer voltage regulation coil equal to the gear progression of main transformer series coil.
Preferably, the access number of turn of main transformer series coil is regulated by off circuit tap changer gear selecting.
Preferably, the access number of turn of main transformer voltage regulation coil is regulated by load ratio bridging switch gear selecting.
Compared with prior art, the present invention has following useful technique effect:
Adjustable transformer of the present invention, electromagnetic coupled relation by main transformer voltage regulation coil with main transformer common winding and main transformer series coil, main transformer voltage regulation coil produces induced voltage, adjust, with excision, the on-load voltage size becoming on primary winding at string by accessing of tapping of main transformer voltage regulation coil, become primary winding and string and become the electromagnetic coupled relation of secondary coil by going here and there and then adjust string and become the induced voltage size on secondary coil；By the self-coupling mode of main transformer common winding and main transformer series coil, adjust the transmission voltage swing being transferred directly to string change secondary coil, thus comprehensively achieve the control to outlet voltage and adjustment, structure is unique, simple to operate, range of regulation is big, it is ensured that leading-out terminal output electric current invariable, improve the stability of product, significantly reduce transformer loss.
Further, by selecting the pin configuration that voltage regulating mode is corresponding with switchgear distribution and then cooperation, the requirement that product pressure regulation is tapped by user is met；Thus adjustable transformer is separated from rectifier transformer, make separate unit adjustable transformer that multiple stage rectifier transformer can be coordinated to use, both volume and the weight of separate unit rectifier transformer had been reduced, ensure transport, consumable material can be reduced for user again, reduce instantly and the production cost of transformation later or more exchange device.
The rank difference pressure regulation method of adjustable transformer of the present invention, undertaken by the adjustment of outlet voltage is shared in two pressure regulation links, the number of turn access being utilized respectively main transformer series coil and main transformer voltage regulation coil coordinates adjustment with excision, by main transformer series coil regulate for coarse adjustment, by main transformer voltage regulation coil regulate for fine tuning, the progression that gear progression is two pressure regulation link gears making pressure regulation is long-pending, the rank difference pressure regulation of the wider more progression of existing techniques in realizing of comparing.
Further, by the selection to main transformer series coil and main transformer voltage regulation coil tap changer, ensure that when big electric current flows through in main transformer series coil the safety of circuit and stable, and the adjustment to outlet voltage can be realized not power-off has load work in main transformer voltage regulation coil
Accompanying drawing explanation
Fig. 1 is the winding coupling figure of adjustable transformer of the present invention.
In figure: I is main transformer device body, II becomes device body for string, and A, B, C are three-phase end of incoming cables, a, b, c three-phase leading-out terminal, Am, Bm, Cm are the outfan of main transformer voltage regulation coil, am, bm, cm are the input that string becomes primary winding, and k1 k3 is polar selecting switch, and G1 G3 is main transformer common winding, C1 C3 is main transformer series coil, T1 T3 is main transformer voltage regulation coil, and H1 H3 becomes primary winding for string, and L1 L3 becomes secondary coil for string.
Detailed description of the invention
Below in conjunction with concrete example, the present invention is described in further detail, and the explanation of the invention is not limited.
One adjustable transformer of the present invention, as it is shown in figure 1, include main transformer device body and string change device body；Main transformer device body includes main transformer series coil C1, C2, C3, main transformer common winding G1, G2, G3 and main transformer voltage regulation coil T1, T2, T3；String becomes device body and includes string change primary winding H1, H2, H3 and string change secondary coil L1, L2, L3.
In this preferred embodiment, as shown in Figure 1, end of incoming cables A, B, C respectively with C1, C2, C3 coil contact, C1, C2, C3 coil respectively with G1, G2, G3 coils connected in series and by three single-phase excitation-free tapping switchs respectively with L1, L2, L3 coil composition self-coupling be connected；T1, T2, T3 coil and corresponding C1, C2, C3 coil being cascaded and G1, G2, G3 coil respectively electromagnetic coupled relation, T1, T2, T3 coil is connected by a three-phase load ratio bridging switch with H1, H2, H3 coil respectively, H1, H2, H3 coil and L1, L2, L3 coil respectively electromagnetic coupled relation, L1, L2, L3 coil is connected with leading-out terminal a, b, c respectively.Main transformer device body and string become device body and all adopt three-phase three-limb machine body structure, and are arranged in same fuel tank.
In this preferred embodiment based on adjustable transformer of the present invention and rank difference pressure regulation method thereof, comprise the steps, change, by regulating the access number of turn of C1, C2, C3 coil, the step transmitting voltage in L1, L2, L3 coil；The step of induced voltage in L1, L2, L3 coil is changed by regulating the access number of turn of T1, T2, T3 coil；By regulating induced voltage and/or the step of transmission voltage change adjustable transformer outlet voltage；Wherein outlet voltage is equal to the algebraical sum of transmission voltage with induced voltage.
Wherein, the gear maximal regulated progression of rank difference pressure regulation is long-pending with the gear progression of T1, T2, T3 coil equal to the gear progression of C1, C2, C3 coil.In this preferred embodiment, the access of C1, C2, C3 coil turn is regulated by off circuit tap changer gear selecting with excision；The access of T1, T2, T3 coil turn is regulated by load ratio bridging switch gear selecting with excision.
Concrete, as it is shown in figure 1, main transformer device body I and string become device body II all adopts three-phase three-limb machine body structure.Self coupling non-excitation pressure adjustment part, as it is shown in figure 1, select 5 grades of linear voltage regulations as coarse adjustment, and owing to the electric current of input side is relatively big, therefore selects three single-phase excitation-free tapping switchs, also ensures bigger electric current output simultaneously, meet demand.On-load voltage regulation part, as shown in Figure 1, select the positive-negative voltage-regulation of totally 35 grades as fine tuning, due to string become device body capacity can design less, therefore string becomes H1, H2, H3 coil in device body, and the electric current of T1, T2, T3 coil in main transformer device body is also less, thus selecting a three-phase load ratio bridging switch.
During work, by the T1 with main transformer device, T2, the H1 connected with it given respectively by T3 coil, H2, H3 coil power supply, respectively and H1, H2, the L1 of H3 coil electromagnetism coupling, L2, the induced voltage that L3 coil just induces is a part for outlet voltage, again with by C1, C2, C3 coil and G1, G2, G3 coil is directly output to L1 respectively, L2, the algebraical sum of the transmission voltage of L3 coil is just the actual output voltage of leading-out terminal, it is thus possible to make leading-out terminal output voltage realize steadily adjustment on a large scale, and the not power-off rank difference of carrying that can realize voltage in each shelves of off circuit tap changer regulates.
When C1, C2, C3 coil in from from end of incoming cables to main transformer device body and G1, G2, G3 coil apply constant AC voltage, selecting different C1, C2, C3 coil taps just to have a transformable transmission voltage directly to be exported by L1, L2, L3 coil being connected with off circuit tap changer by three off circuit tap changers, the directly transmission voltage of this output is a part for outlet voltage.
When C1, C2, C3 coil in from from end of incoming cables to main transformer device body and G1, G2, G3 coil apply constant AC voltage, owing in main transformer device body, T1, T2, T3 coil is electromagnetic coupled relation with corresponding C1, C2, C3 coil being serially connected and G1, G2, G3 coil respectively, T1, T2, T3 coil will produce sensing output voltage, this output voltage is regulated by the load ratio bridging switch being connected with T1, T2, T3 coil, it may be achieved output voltage rank difference even variation.Simultaneously H1, H2, H3 coil respectively with T1, T2, T3 coils connected in series, therefore this output voltage is also the input voltage of H1, H2, H3 coil, also can rank difference even variation.String becomes L1, L2, L3 coil in device body and couples with H1, H2, H3 coil electromagnetism respectively, and L1, L2, L3 coil output also can produce sensing output voltage, also can rank difference even variation.The induced voltage of this output is another part of outlet voltage.
The above-mentioned transmission voltage of directly output and the induced voltage of output are series relationship, and both algebraical sums are just the actual output voltage of leading-out terminal.Its pressure regulation progression is that off circuit tap changer gear number is with load ratio bridging switch gear number long-pending, as it is shown in figure 1, this example is altogether for accessing 5 grades of switch long-pending obtain 175 grade with load ratio bridging switch 35 grades without excitation.When adjustable transformer input side applies constant voltage, outlet side output voltage, power can uniform and stable changes in a big way；And can realize carrying 35 grades of rank difference pressure regulation changes of not power-off in each shelves of off circuit tap changer.And the output constant current hold of transformator outlet side leading-out terminal is constant.
Claims (8)
1. an adjustable transformer, it is characterised in that include main transformer device body and string becomes device body；Described main transformer device body includes the main transformer common winding with end of incoming cables series winding and main transformer series coil, with the main transformer voltage regulation coil of main transformer common winding and main transformer series coil electromagnetic coupled；Described string change device body includes the string change primary winding of mutual electromagnetic coupling and becomes secondary coil with string；String becomes primary winding and connects with main transformer voltage regulation coil, is connected on the change secondary coil of the string on main transformer series coil and is connected with leading-out terminal；
Described main transformer series coil is accessed by off circuit tap changer and excises, and main transformer series coil becomes secondary coil self-coupling by off circuit tap changer with string and is connected；
Described main transformer voltage regulation coil becomes primary winding by a three-phase load ratio bridging switch with string and connects.
2. a kind of adjustable transformer according to claim 1, it is characterised in that described main transformer series coil becomes the corresponding of secondary coil with string respectively by three single-phase excitation-free tapping switchs and is in series.
3. a kind of adjustable transformer according to claim 1, it is characterised in that described main transformer voltage regulation coil adopts the load ratio bridging switch being provided with polar selecting switch to access and excision.
4. a kind of adjustable transformer according to claim 1, it is characterised in that described main transformer device body and string become device body and all adopt three-phase three-limb machine body structure, and are arranged in same fuel tank.
5. the rank difference pressure regulation method based on adjustable transformer described in claim 1, it is characterised in that comprise the steps,
The step transmitting voltage in string change secondary coil by regulating the access number of turn of main transformer series coil to change；The step of induced voltage in string change secondary coil is changed by regulating the access number of turn of main transformer voltage regulation coil；By regulating induced voltage and/or the step of transmission voltage change adjustable transformer outlet voltage；Wherein outlet voltage is equal to the algebraical sum of transmission voltage with induced voltage.
6. the rank difference pressure regulation method of a kind of adjustable transformer according to claim 5, it is characterised in that the gear maximal regulated progression of rank difference pressure regulation is long-pending with the gear progression of main transformer voltage regulation coil equal to the gear progression of main transformer series coil.
7. the rank difference pressure regulation method of a kind of adjustable transformer according to claim 5, it is characterised in that the access number of turn of main transformer series coil is regulated by off circuit tap changer gear selecting.
8. the rank difference pressure regulation method of a kind of adjustable transformer according to claim 5, it is characterised in that the access number of turn of main transformer voltage regulation coil is regulated by load ratio bridging switch gear selecting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310699331.4A CN103680881B (en) | 2013-12-18 | 2013-12-18 | A kind of adjustable transformer and rank difference pressure regulation method thereof |
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| CN201310699331.4A CN103680881B (en) | 2013-12-18 | 2013-12-18 | A kind of adjustable transformer and rank difference pressure regulation method thereof |
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| CN103680881A CN103680881A (en) | 2014-03-26 |
| CN103680881B true CN103680881B (en) | 2016-06-29 |
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| GB2521599B8 (en) * | 2013-12-13 | 2018-05-09 | David Laurence Killingbeck Bowers | An electrical transformer apparatus |
| CN104701868B (en) * | 2015-03-27 | 2016-09-14 | 中国西电电气股份有限公司 | A kind of current disturbing source of variable voltage level |
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|---|---|---|---|---|
| CN101789305A (en) * | 2010-02-25 | 2010-07-28 | 上官远定 | Tertiary winding continuous voltage regulation rectifier transformer |
| CN101819854A (en) * | 2010-04-22 | 2010-09-01 | 江西变压器科技股份有限公司 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
| CN102360849A (en) * | 2011-07-12 | 2012-02-22 | 三变科技股份有限公司 | Double-high and low voltage on-load regulating transformer |
| CN102543401A (en) * | 2012-03-14 | 2012-07-04 | 江西变压器科技股份有限公司 | Two-differential tertiary winding voltage regulating rectifier transformer |
| CN102664541A (en) * | 2012-05-09 | 2012-09-12 | 广西柳州特种变压器有限责任公司 | Energy-saving-type rectification system |
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- 2013-12-18 CN CN201310699331.4A patent/CN103680881B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789305A (en) * | 2010-02-25 | 2010-07-28 | 上官远定 | Tertiary winding continuous voltage regulation rectifier transformer |
| CN101819854A (en) * | 2010-04-22 | 2010-09-01 | 江西变压器科技股份有限公司 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
| CN102360849A (en) * | 2011-07-12 | 2012-02-22 | 三变科技股份有限公司 | Double-high and low voltage on-load regulating transformer |
| CN102543401A (en) * | 2012-03-14 | 2012-07-04 | 江西变压器科技股份有限公司 | Two-differential tertiary winding voltage regulating rectifier transformer |
| CN102664541A (en) * | 2012-05-09 | 2012-09-12 | 广西柳州特种变压器有限责任公司 | Energy-saving-type rectification system |
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Effective date of registration: 20170523 Address after: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Co-patentee after: XI'AN XIBIAN ZHONGTE ELECTRIC CO.,LTD. Patentee after: CHINA XD ELECTRIC Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. |
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Address after: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee after: CHINA XD ELECTRIC Co.,Ltd. Country or region after: China Patentee after: Chengdu Xidian Zhongte Electric Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. Country or region before: China Patentee before: XI'AN XIBIAN ZHONGTE ELECTRIC CO.,LTD. |