CN101819854B - Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer - Google Patents
Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer Download PDFInfo
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- CN101819854B CN101819854B CN2010101526707A CN201010152670A CN101819854B CN 101819854 B CN101819854 B CN 101819854B CN 2010101526707 A CN2010101526707 A CN 2010101526707A CN 201010152670 A CN201010152670 A CN 201010152670A CN 101819854 B CN101819854 B CN 101819854B
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Abstract
The invention relates to a tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer which is characterized in that a coarse adjusting winding Wc and a fine adjusting winding Wt of a main transformer can realize multi-stage coarse and fine continuous voltage adjustment by an on-load tapping changing switch, and supply power to a high-voltage winding W5 of a series transformer; and a low-voltage winding W4 of the main transformer and a low-voltage winding W6 of the series transformer are electrically connected in series to form a secondary side of the transformer. The invention has the advantages that the primary side, the secondary side and the tertiary side are electrically separated from each other, which is quite safe and reliable; the capacity coefficient is 1.5, the capacity coefficient of a voltage reducing self coupling circuit is 1.75, the capacity coefficient of a voltage step-down circuit is 2, the circuit can save more costs, and the efficiency is improved; and multi-stage coarse and fine continuous voltage adjustment from the stage 48 to the stage 107 is realized with more convenient operation.
Description
Technical field
The present invention relates to a kind of transformer, relate in particular to a kind of tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer.
Background technology
Along with aluminium electroloysis industry, chemical industry develop to high voltage, the big sense of current; Require commutation supply voltage equipment rectifier transformer also will develop to big capacity direction, the mode of connection of traditional rectifier transformer can't satisfy high reliability, low-loss high efficiency, low-impedance voltage and the requirement of interior continuous voltage regulating on a large scale simultaneously.The invention provides a kind of tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer, can satisfy high reliability, low-loss high efficiency, low-impedance voltage and the requirement of interior continuous voltage regulating on a large scale.
Summary of the invention
The object of the present invention is to provide a kind of tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer, this transformer adapts to the commutation supply voltage system of aluminium electroloysis industry, chemical industry and other special trades.
The present invention realizes like this; It is made up of main transformer and series transformer two parts; Wherein main transformer is by a winding W1, phase shift winding W2, coarse adjustment winding Wc; Fine tuning winding Wt and low pressure winding W4 form, and choose the part of coarse adjustment winding Wc or all as stablizing and compensating winding W3; Series transformer is made up of high pressure winding W5 and low pressure winding W6; The coarse adjustment winding Wc and the fine tuning winding Wt that it is characterized in that main transformer realize multi-stage coarse and fine continuous pressure through on load tap changer, and to the high pressure winding W5 of series transformer power supply; The low pressure winding W6 of the low pressure winding W4 of main transformer and series transformer is connected in series on electric, forms the secondary side of transformer.
The low pressure winding of described main transformer and the low pressure winding of series transformer can be designed to " 8 " coil form, also can independently separate.
Adopt two independent iron cores, being designed to the rectification pulse number is 6 pulse waves or 12 pulse waves; Or adopt four independent iron cores, being designed to the rectification pulse number is 12 pulse waves or 24 pulse waves.
Main transformer and series transformer are placed in the same fuel tank, form homophony unification formula structure; Also can main transformer be placed on a fuel tank, series transformer is placed in the another one fuel tank, forms split-type structural.
Technique effect of the present invention is: primary side, secondary side and three sides are isolated on electric each other, and are as safe as a house reliable; Capacity coefficient is 1.5, and the capacity coefficient of step-down self coupling circuit is 1.75, and the capacity coefficient of the circuit that falls progressively is 2, and circuit is practiced thrift cost more, raises the efficiency; Realization is from 48 grades to 107 grades multi-stage coarse and fine continuous pressure, and is more convenient to operate; The insulation level of on load tap changer is low, and is more safe and reliable; The low pressure winding of main transformer and the low pressure winding of series transformer can be designed to " 8 " coil form, also can independently separate, and be convenient, flexible.
Description of drawings
Fig. 1 is an elementary diagram of the present invention.
Fig. 2 is the winding layout plan of main transformer of the present invention.
Fig. 3 is the winding layout plan of series transformer of the present invention.
Embodiment
As shown in Figure 1; The winding W1 and the phase shift winding W2 of main transformer 1 connect into indentation, and neutral point can be drawn ground connection, constitute YN and connect method; Three head ends of three-phase side winding are nominally A, B, C terminal, insert three phase and symmetric power system A phase, B phase and C respectively mutually.Coarse adjustment winding Wc can form by 3 sections, 4 sections or 5 sections, can choose the part of coarse adjustment winding Wc or all as stable and compensation winding W3 according to actual condition, and is stable and compensate winding W3 and connect into triangle or star, three sides of formation transformer.The coarse adjustment winding Wc of main transformer 1 and fine tuning winding Wt realize multi-stage coarse and fine continuous pressure through on load tap changer, and to the high pressure winding W5 of series transformer 2 power supply.The low pressure winding W6 of the low pressure winding W4 of main transformer 1 and series transformer connects on electric, connects into triangle or Y-connection.
Like Fig. 2, shown in Figure 3, the winding of main transformer 1 is sleeved on the iron core 3 jointly, in unshakable in one's determination 3 is successively outward: coarse adjustment winding Wc, fine tuning winding Wt, phase shift winding W2, winding W1 and low pressure winding W4.The winding of series transformer is sleeved on another iron core jointly, in iron core is successively outward: high pressure winding W5 and low pressure winding W6.
Claims (4)
1. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer; It is made up of main transformer and series transformer two parts; Wherein main transformer is by a winding W1, phase shift winding W2, coarse adjustment winding Wc; Fine tuning winding Wt and low pressure winding W4 form, and choose the part of coarse adjustment winding Wc or all as stablizing and compensating winding W3; Series transformer is made up of high pressure winding W5 and low pressure winding W6; The coarse adjustment winding Wc and the fine tuning winding Wt that it is characterized in that main transformer realize multi-stage coarse and fine continuous pressure through on load tap changer, and to the high pressure winding W5 of series transformer power supply; The primary side of transformer is made up of winding W1 and phase shift winding W2, and winding W1 and phase shift winding W2 are coupled to the indentation circuit; The secondary side of transformer is made up of the low pressure winding W4 of main transformer and the low pressure winding W6 of series transformer, and low pressure winding W4 and low pressure winding W6 are connected in series on electric; Three sides of transformer are made up of stable and compensation winding W3, and stable and compensation winding W3 is coupled to star.
2. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer according to claim 1 is characterized in that the low pressure winding of described main transformer and the low pressure winding of series transformer can be designed to " 8 " coil form, also can independently separate.
3. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer according to claim 1 is characterized in that adopting two independent iron cores, and being designed to the rectification pulse number is 6 pulse waves or 12 pulse waves; Or adopt four independent iron cores, being designed to the rectification pulse number is 12 pulse waves or 24 pulse waves.
4. tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer according to claim 1 is characterized in that main transformer and series transformer are placed in the same fuel tank, forms homophony unification formula structure; Also can main transformer be placed on a fuel tank, series transformer is placed in the another one fuel tank, forms split-type structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101526707A CN101819854B (en) | 2010-04-22 | 2010-04-22 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101526707A CN101819854B (en) | 2010-04-22 | 2010-04-22 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101819854A CN101819854A (en) | 2010-09-01 |
| CN101819854B true CN101819854B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101526707A Expired - Fee Related CN101819854B (en) | 2010-04-22 | 2010-04-22 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
Country Status (1)
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| CN (1) | CN101819854B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136356A (en) * | 2010-12-01 | 2011-07-27 | 四川英杰电气股份有限公司 | Three-phase five-column transformer |
| CN102568793A (en) * | 2011-12-29 | 2012-07-11 | 保定天威集团(江苏)五洲变压器有限公司 | Electric furnace transformer using serial conversion pressure regulation three-time connection-disconnection technology |
| 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 |
| CN103515071B (en) * | 2013-09-23 | 2015-09-02 | 保定保菱变压器有限公司 | A kind of high pressure raw fine regulation on-load voltage regulation |
| CN103680881B (en) * | 2013-12-18 | 2016-06-29 | 中国西电电气股份有限公司 | A kind of adjustable transformer and rank difference pressure regulation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5063487A (en) * | 1990-03-22 | 1991-11-05 | The United States Of America As Represented By The Secrectary Of The Navy | Main and auxiliary transformer rectifier system for minimizing line harmonics |
| CN101354956B (en) * | 2008-05-28 | 2010-11-17 | 保定天威集团有限公司 | Large-capacity double-body phase-shifting transformer |
| CN201638634U (en) * | 2010-04-22 | 2010-11-17 | 江西变压器科技股份有限公司 | Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding |
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2010
- 2010-04-22 CN CN2010101526707A patent/CN101819854B/en not_active Expired - Fee Related
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| CN101819854A (en) | 2010-09-01 |
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Granted publication date: 20120523 Termination date: 20140422 |