CN101740211B - Voltage regulation and rectification transformer with balance transformer third winding - Google Patents
Voltage regulation and rectification transformer with balance transformer third winding Download PDFInfo
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- CN101740211B CN101740211B CN2010101086001A CN201010108600A CN101740211B CN 101740211 B CN101740211 B CN 101740211B CN 2010101086001 A CN2010101086001 A CN 2010101086001A CN 201010108600 A CN201010108600 A CN 201010108600A CN 101740211 B CN101740211 B CN 101740211B
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- winding
- valve side
- transformer
- low pressure
- star
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Abstract
The invention discloses a voltage regulation and rectification transformer with a balance transformer third winding, comprising a rectification transformer body formed by combining a main transformer body and a serial transformer body through a valve side low-voltage winding by adopting a coil structure in a shape like the Arabic number eight, wherein the valve side low-voltage winding consists of a valve side low-voltage star joint winding and a valve side low-voltage angle joint winding. The voltage regulation and rectification transformer is characterized in that a balance transformer is connected in series behind the valve side low-voltage winding so as to realize the current balance output of valve side 12 phases; the power of a primary winding is supplied by the valve side low-voltage winding; and a balance transformer secondary winding is connected in series behind a lead copper bar of the valve side low-voltage winding in the rectification transformer body. The voltage regulation and rectification transformer realizes single-machine 12 phase balance output and single-machine high-capacity output and has small network side harmonic wave, low harmonic wave pollution to a power grid, small structural capacity and small total loss of the rectification transformer, energy saving, environmental protection, low overall cost, compact structure and small occupation area.
Description
Technical field
The present invention relates to rectifier transformer, especially relate to a kind of band balance and become tertiary winding voltage regulating rectifier transformer.
Background technology
Large rectifier transformer adopts step-down self coupling structure, the formula that falls progressively structure or tertiary winding pressure adjusting structure usually at present.Because the electrolysis tank capacity of aluminum electrolysis industry has reached more than 250,000 tons at present, therefore require rectifier transformer separate unit capacity generally all more than 100,000 kVA, and electric pressure is generally two kinds of 220kV, 330kV, the valve side requires separate unit 12 to export mutually.Tertiary winding voltage regulating rectifier transformer (separate unit 12 phases) has the advantages that the separate unit structural capacity is little, in light weight, loss is little with respect to the step-down self coupling rectifier transformer or the formula rectifier transformer that falls progressively.The structural capacity of tertiary winding voltage regulating rectifier transformer is 75% of the formula rectifier transformer structural capacity that falls progressively; But because tertiary winding voltage regulating rectifier transformer is when realizing that separate unit 12 is exported mutually; The voltage that valve side low pressure corner connection winding and valve side low pressure star connect between winding is not the same; Have tens volts voltage difference, so just need utilize the saturable reactor balance of mediating, but because adopted saturable reactor to regulate the corner connection winding, star connects the balance of voltage between winding; Thereby caused side harmonics content to strengthen, electrical network has been caused harmonic pollution.
Summary of the invention
The object of the present invention is to provide a kind of series connection balancing transformer that is utilized in behind the valve side low pressure winding to realize that separate unit 12 export, can not add the net side band balance change tertiary winding voltage regulating rectifier transformer of extra harmonic pollution mutually.
The objective of the invention is to realize like this: the present invention includes by main transformer device body and string change device body and adopt 8 word line coil structures to combine the rectifier transformer body that constitutes through valve side low pressure winding; Valve side low pressure winding connects winding by valve side low pressure star and valve side low pressure corner connection winding constitutes; Characteristic is behind valve side low pressure winding, to be in series with balancing transformer, to realize the current balance type output of valve side 12 phases; Balancing transformer is made up of winding of balancing transformer and balance transformer secondary winding; Winding of balancing transformer provides power supply by valve side low pressure winding, behind the lead-in wire copper bar of the valve side low pressure winding of balancing transformer secondary windings in series in the rectifier transformer body.
Said balancing transformer is three or six single-phase transformers; Or said balancing transformer is one or two three-phase transformer.
It is identical that the valve side low pressure corner connection winding and the valve side low pressure star of tertiary winding voltage regulating rectifier transformer of the present invention connects between winding voltage; Do not need saturable reactor adjusting corner connection winding, star to connect the balance of voltage between winding, thereby can not add extra harmonic pollution the net side.And the rectifier transformer circuit still adopts traditional circuit in the past constant (comprise band no-load fall single device body 12 of section export tertiary winding voltage regulating rectifier circuit, band no-load mutually and fall two device bodies 12 of section and export tertiary winding voltage regulating rectifier circuit mutually, transfer single device body 12 to export tertiary winding voltage regulating rectifier circuit mutually, transfer pair device bodies 12 to export tertiary winding voltage regulating rectifier circuit mutually continuously continuously).Therefore, the present invention has following advantage: 1, realize separate unit 12 output that balances each other; 2, can realize the big capacity output of separate unit; 3, side harmonics is little, and is little to the harmonic pollution of electrical network; 4, the structural capacity of rectifier transformer is little; 5, the rectifier transformer overall loss is little, energy-conserving and environment-protective; 6, low, the compact conformation of whole cost, floor space are little.
Description of drawings
Fig. 1 is the schematic circuit of embodiment 1;
Fig. 2 is the schematic circuit of embodiment 2;
Fig. 3 is first kind of schematic circuit of rectifier transformer body among embodiment 1 and the embodiment 2;
Fig. 4 is second kind of schematic circuit of rectifier transformer body among embodiment 1 and the embodiment 2;
Fig. 5 is the schematic circuit that embodiment 1 adopts first kind of rectifier transformer body;
Fig. 6 is the schematic circuit that embodiment 2 adopts second kind of rectifier transformer body.
Falling 12 of section in the band no-load of Fig. 3 and Fig. 5 exports in the tertiary winding voltage regulating rectifier circuit mutually: net side high pressure winding W
A1, W
B1, W
C1, W
A2, W
B2, W
C2Be first winding, valve side low pressure winding 2 is second winding, fine tuning winding T
Ax, T
Bx, T
Cx, coarse adjustment winding T
Az, T
Bz, T
Cz, string becomes a winding T
Ac, T
Bc, T
CcWith the fork shift switch be the tertiary winding.
Export mutually in the tertiary winding voltage regulating rectifier circuit at 12 of the continuous accent of Fig. 4 and Fig. 6: net side high pressure winding W
A1, W
B1, W
C1, W
A2, W
B2, W
C2Be first winding, valve side low pressure winding 2 is second winding, fine tuning winding T
Ax, T
Bx, T
Cx, T '
Ax, T '
Bx, T '
Cx, coarse adjustment winding T
Az, T
Bz, T
Cz, T '
Az, T '
Bz, T '
CzBecome a winding T with string
Ac, T
Bc, T
Cc, T '
Ac, T '
Bc, T '
CcBe the tertiary winding.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is done further explain.
Embodiment 1:
The present invention includes by main transformer device body 6 and string change device body 7 adopts 8 word line coil structures to combine the rectifier transformer body 1 that constitutes through valve side low pressure winding 2; Valve side low pressure winding 2 connects winding 3 by valve side low pressure star and constitutes with valve side low pressure corner connection winding 5, and valve side low pressure star connects winding 3 and meets valve side winding Y by main transformer low pressure star again
Az, Y
Bz, Y
CzPress star to meet valve side winding Y with the string step-down
Ac, Y
Bc, Y
CcConstitute, valve side low pressure corner connection winding 5 is again by main transformer low pressure corner connection valve side winding D
Az, D
Bz, D
CzPress corner connection valve side winding D with the string step-down
Ac, D
Bc, D
CcConstitute, press star to meet valve side winding Y at the string step-down
Ac, Y
Bc, Y
CcAfter be in series with balancing transformer 4, to realize the current balance type output of valve side 12 phases, balancing transformer 4 meets winding Wy of valve side balancing transformer by star
A, Wy
B, Wy
CMeet valve side balancing transformer secondary winding Wy with star
a, Wy
b, Wy
cConstitute, star meets winding Wy of valve side balancing transformer
A, Wy
B, Wy
CConnect winding 3 by valve side low pressure star power supply is provided, star meets valve side balancing transformer secondary winding Wy
a, Wy
b, Wy
cBeing connected on step-down presses star to meet valve side winding Y
Ac, Y
Bc, Y
CcThe lead-in wire copper bar after, promptly star meets valve side low-voltage terminal a
1, b
1, c
1The place.
Embodiment 2:
The present invention includes by main transformer device body 6 and string change device body 7 adopts 8 word line coil structures to combine the rectifier transformer body 1 that constitutes through valve side low pressure winding 2; Valve side low pressure winding 2 connects winding 3 by valve side low pressure star and constitutes with valve side low pressure corner connection winding 5, and valve side low pressure star connects winding 3 and meets valve side winding Y by main transformer low pressure star again
Az, Y
Bz, Y
CzPress star to meet valve side winding Y with the string step-down
Ac, Y
Bc, Y
CcConstitute, valve side low pressure corner connection winding 5 is again by main transformer low pressure corner connection valve side winding D
Az, D
Bz, D
CzPress corner connection valve side winding D with the string step-down
Ac, D
Bc, D
CcConstitute, press corner connection valve side winding D at the string step-down
Ac, D
Bc, D
CcAfter be in series with balancing transformer 4, to realize the current balance type output of valve side 12 phases, balancing transformer 4 is by winding Wd of corner connection valve side balancing transformer
A, Wd
B, Wd
CWith corner connection valve side balancing transformer secondary winding Wd
a, Wd
b, Wd
cConstitute winding Wd of corner connection valve side balancing transformer
A, Wd
B, Wd
CBy valve side low pressure corner connection winding 5 power supply is provided, corner connection valve side balancing transformer secondary winding Wd
a, Wd
b, Wd
cBe connected on step-down and press corner connection valve side winding D
Ac, D
Bc, D
CcThe lead-in wire copper bar after, i.e. corner connection valve side low-voltage terminal a
2, b
2, c
2The place.
Claims (5)
1. a band balance becomes tertiary winding voltage regulating rectifier transformer; Comprise that becoming the device body by main transformer device body and string adopts 8 word line coil structures to combine the rectifier transformer body that constitutes through valve side low pressure winding; Valve side low pressure winding connects winding by valve side low pressure star and valve side low pressure corner connection winding constitutes; Valve side low pressure star connects winding and connects valve side winding by main transformer low pressure star again and press star to connect valve side winding with the string step-down to constitute; Valve side low pressure corner connection winding presses corner connection valve side winding to constitute by main transformer low pressure corner connection valve side winding and string step-down again, it is characterized in that: behind valve side low pressure winding, be in series with balancing transformer, to realize the current balance type output of valve side 12 phases; Balancing transformer is made up of winding of balancing transformer and balance transformer secondary winding.
2. band balance as claimed in claim 1 becomes tertiary winding voltage regulating rectifier transformer; It is characterized in that: winding of said balancing transformer is that star connects winding of valve side balancing transformer; Said balancing transformer secondary winding is that star connects valve side balancing transformer secondary winding; Star connects winding of valve side balancing transformer and connects winding by valve side low pressure star power supply is provided; Star connects valve side balancing transformer secondary windings in series after the string step-down presses star to connect the lead-in wire copper bar of valve side winding, and promptly star meets valve side low-voltage terminal place.
3. band balance as claimed in claim 1 becomes tertiary winding voltage regulating rectifier transformer; It is characterized in that: winding of said balancing transformer is winding of corner connection valve side balancing transformer; Said balancing transformer secondary winding is a corner connection valve side balancing transformer secondary winding; Winding of corner connection valve side balancing transformer provides power supply by valve side low pressure corner connection winding; After corner connection valve side balancing transformer secondary windings in series is pressed the lead-in wire copper bar of corner connection valve side winding at the string step-down, i.e. corner connection valve side low-voltage terminal place.
4. become tertiary winding voltage regulating rectifier transformer like claim 2 or 3 described band balances, it is characterized in that: said balancing transformer is three or six single-phase transformers.
5. become tertiary winding voltage regulating rectifier transformer like claim 2 or 3 described band balances, it is characterized in that: said balancing transformer is one or two three-phase transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101086001A CN101740211B (en) | 2010-02-10 | 2010-02-10 | Voltage regulation and rectification transformer with balance transformer third winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101086001A CN101740211B (en) | 2010-02-10 | 2010-02-10 | Voltage regulation and rectification transformer with balance transformer third winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101740211A CN101740211A (en) | 2010-06-16 |
| CN101740211B true CN101740211B (en) | 2012-02-08 |
Family
ID=42463520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101086001A Expired - Fee Related CN101740211B (en) | 2010-02-10 | 2010-02-10 | Voltage regulation and rectification transformer with balance transformer third winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101740211B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867623A (en) * | 2011-07-07 | 2013-01-09 | 新疆升晟股份有限公司 | Novel electric stove transformer with compensation terminals |
| 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 |
| CN103559989A (en) * | 2013-10-30 | 2014-02-05 | 江西变压器科技股份有限公司 | Series-transformer voltage regulation double V coil type rectifier transformer |
| CN113823499A (en) * | 2021-11-24 | 2021-12-21 | 上海电气集团(张家港)变压器有限公司 | Voltage regulating transformer system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3022232B2 (en) * | 1995-02-06 | 2000-03-15 | 株式会社日立製作所 | Phase adjusting transformer and method of protecting the transformer |
| CN2704094Y (en) * | 2004-04-16 | 2005-06-08 | 中国石化胜利油田有限公司技术检测中心 | Multi-stage on-load automatic voltage-regulating transformer |
| CN201590316U (en) * | 2010-02-10 | 2010-09-22 | 上官远定 | Regulating rectifier transformer with balance variable third winding |
-
2010
- 2010-02-10 CN CN2010101086001A patent/CN101740211B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101740211A (en) | 2010-06-16 |
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Granted publication date: 20120208 Termination date: 20170210 |
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