CN107863239A - A kind of double-extended-triangle descending voltage regulation rectifier transformer - Google Patents
A kind of double-extended-triangle descending voltage regulation rectifier transformer Download PDFInfo
- Publication number
- CN107863239A CN107863239A CN201711262393.3A CN201711262393A CN107863239A CN 107863239 A CN107863239 A CN 107863239A CN 201711262393 A CN201711262393 A CN 201711262393A CN 107863239 A CN107863239 A CN 107863239A
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- China
- Prior art keywords
- winding
- coarse adjustment
- adjustment winding
- modulation
- transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention relates to a kind of rectifier transformer, more particularly to a kind of double-extended-triangle descending voltage regulation rectifier transformer.It includes the basic winding of main transformer in main transformer, main transformer Phase shift winding, modulation first winding in adjustable transformer, the secondary coarse adjustment winding of modulation, the secondary fine tuning winding of modulation, multi-stage coarse and fine adjusts load ratio bridging switch, the secondary coarse adjustment winding of modulation it include the first coarse adjustment winding for being cascaded, second coarse adjustment winding, 3rd coarse adjustment winding, 4th coarse adjustment winding, 5th coarse adjustment winding, and by above-mentioned first coarse adjustment winding, second coarse adjustment winding, 3rd coarse adjustment winding, 4th coarse adjustment winding, one or more coarse adjustment winding in 5th coarse adjustment winding is connected into corner connection wiring, form double extend-triangle connection circuitries, the dielectric level of each winding of modulation secondary side and main transformer first side winding over the ground is low；Switch insulation level is low, and cost is low；Rectifier transformer overall loss is small, and a wide range of rank difference pressure regulation requirement of output voltage is realized in energy-conserving and environment-protective.
Description
Technical field
The present invention relates to a kind of rectifier transformer, more particularly to a kind of double-extended-triangle descending voltage regulation rectifier transformer.
Background technology
Rectifier transformer has electrolytic rectifier transformer, electric furnace with rectifier transformer, carborundum electric furnace for purposes
Transformer etc..The distinguishing feature of rectifier transformer structure is more pulse wave power supplies and a wide range of pressure regulation.In order to meet load to straight
The requirement of the requirement and alternating current net side of voltage glacing flatness to harmonic current etc. is flowed, fairing should use multiphase power supply and each phase
The circuit turned in turn.And to realize a wide range of pressure regulation, it is necessary to set up before rectifier transformer (i.e. main transformer) with certain pressure regulation
The adjustable transformer of mode.
Traditional voltage regulating mode is that extend-triangle falls progressively pressure regulation, and it is continuous that modulation secondary side is that extend-triangle multi-stage coarse and fine is adjusted
Pressure regulation, thickness are adjusted and collectively constitute multistage continuous voltage regulating.Remove one section or two sections of portion coarse adjustment winding corner connection (also serving as compensative winding).This
The dielectric level of tap-changing windings and main transformer first side winding line end over the ground is higher under kind connection, and switch insulation grade is high, manufacture
It is cumbersome, loss is big, cost is high.
The content of the invention
Fall progressively variable voltage rectifier transformer object of the present invention is to provide a kind of double extend-triangles, holistic cost
It is low, compact-sized, floor space is small.
The present invention is achieved like this：
A kind of double-extended-triangle descending voltage regulation rectifier transformer, it includes the basic winding of main transformer in main transformer, master
Become Phase shift winding, modulation first winding, the secondary coarse adjustment winding of modulation in adjustable transformer, the secondary fine tuning winding of modulation are multistage
Thickness adjusts load ratio bridging switch, its first coarse adjustment winding, second thick for including being cascaded of the secondary coarse adjustment winding of modulation
Winding, the 3rd coarse adjustment winding, the 4th coarse adjustment winding, the 5th coarse adjustment winding are adjusted, and by above-mentioned first coarse adjustment winding, the second coarse adjustment
One or more coarse adjustment winding in winding, the 3rd coarse adjustment winding, the 4th coarse adjustment winding, the 5th coarse adjustment winding is connected into corner connection and connect
Line, forms double extend-triangle connection circuitries, and double extend-triangle connection circuitries adjust load ratio bridging switch will by multi-stage coarse and fine
The secondary fine tuning winding of modulation connects with the secondary coarse adjustment winding of modulation.The switching for adjusting load ratio bridging switch by multi-stage coarse and fine will
The secondary fine tuning winding of modulation and the secondary coarse adjustment of modulation provide grade in different output voltage ranges for main transformer around connecting
Potential difference exports.
Draw as compensation corner connection part among the adjustable transformer.
The solution have the advantages that：
1st, the dielectric level of each winding of modulation secondary side and main transformer first side winding over the ground is low；
2nd, switch insulation level is low, and cost is low；
3rd, rectifier transformer overall loss is small, energy-conserving and environment-protective；
4th, a wide range of rank difference pressure regulation requirement of output voltage is realized；
5th, between modulation net side and tap-changing windings, two main transformers be not present electricity contacting, so system short-circuit to pressure regulation around
The harm of group and rectifier transformer is little, good reliability；
6th, holistic cost is low, compact-sized, floor space is small.
Brief description of the drawings
Fig. 1 is the connection principle schematic diagram of the present invention.
Fig. 2 is traditional structure modulation secondary side voltage vector diagram.
Fig. 3 is secondary side voltage vector diagram of the present invention.
Embodiment
1,2,3 couple of present invention is described in detail below in conjunction with the accompanying drawings：
A kind of double-extended-triangle descending voltage regulation rectifier transformer, it includes the basic winding 9 of main transformer in main transformer, master
Become Phase shift winding 10, modulation first winding 1, the secondary coarse adjustment winding of modulation in adjustable transformer, the secondary fine tuning winding 3 of modulation,
Multi-stage coarse and fine adjust load ratio bridging switch 4, the secondary coarse adjustment winding of modulation it include be cascaded the first coarse adjustment winding 2,
Second coarse adjustment winding 5, the 3rd coarse adjustment winding 6, the 4th coarse adjustment winding 7, the 5th coarse adjustment winding 8, and by above-mentioned first coarse adjustment around
One or more in the 2, second coarse adjustment winding 5 of group, the 3rd coarse adjustment winding 6, the 4th coarse adjustment winding 7, the 5th coarse adjustment winding 8 is thick
Adjust winding to be connected into corner connection wiring, form double extend-triangle connection circuitries, double extend-triangle connection circuitries pass through multi-stage coarse and fine
Load ratio bridging switch 4 is adjusted to connect the secondary fine tuning winding 3 of modulation and the secondary coarse adjustment winding of modulation.
Draw as compensation corner connection part among the adjustable transformer.
Fig. 2 is traditional structure, and Fig. 3 is the present invention, compares two voltage vector diagrams and can be seen that Am, Bm in Fig. 3 views,
Cm voltage-to-grounds are substantially much smaller.
Claims (2)
1. a kind of double-extended-triangle descending voltage regulation rectifier transformer, it includes the basic winding of main transformer (9) in main transformer, master
Become Phase shift winding (10), the modulation first winding (1), the secondary coarse adjustment winding of modulation, the secondary fine tuning of modulation in adjustable transformer around
Group (3), multi-stage coarse and fine adjust load ratio bridging switch (4), it is characterised in that：The secondary coarse adjustment winding of modulation it include be connected on one
Rise the first coarse adjustment winding (2), the second coarse adjustment winding (5), the 3rd coarse adjustment winding (6), the 4th coarse adjustment winding (7), the 5th coarse adjustment
Winding (8), and by above-mentioned first coarse adjustment winding (2), the second coarse adjustment winding (5), the 3rd coarse adjustment winding (6), the 4th coarse adjustment around
One or more coarse adjustment winding in group (7), the 5th coarse adjustment winding (8) is connected into corner connection wiring, forms double extend-triangles and connects
Line circuit, double extend-triangle connection circuitries adjust load ratio bridging switch (4) by the secondary fine tuning winding (3) of modulation by multi-stage coarse and fine
Connected with the secondary coarse adjustment winding of modulation.
2. double-extended-triangle descending voltage regulation rectifier transformer according to claim 1, it is characterised in that：The pressure regulation becomes
Draw as compensation corner connection part among depressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711262393.3A CN107863239A (en) | 2017-12-04 | 2017-12-04 | A kind of double-extended-triangle descending voltage regulation rectifier transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711262393.3A CN107863239A (en) | 2017-12-04 | 2017-12-04 | A kind of double-extended-triangle descending voltage regulation rectifier transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863239A true CN107863239A (en) | 2018-03-30 |
Family
ID=61704566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711262393.3A Pending CN107863239A (en) | 2017-12-04 | 2017-12-04 | A kind of double-extended-triangle descending voltage regulation rectifier transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL426308A1 (en) * | 2018-07-11 | 2019-08-26 | Strzelecki Ryszard Pgee | Distributive transformer with multi-zone voltage control |
-
2017
- 2017-12-04 CN CN201711262393.3A patent/CN107863239A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL426308A1 (en) * | 2018-07-11 | 2019-08-26 | Strzelecki Ryszard Pgee | Distributive transformer with multi-zone voltage control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180330 |
|
| WD01 | Invention patent application deemed withdrawn after publication |